CN100376378C - Neck cutting mechanism of automatic blow molding blow molding machine - Google Patents

Abstract

The utility model relates to a bottle cutting mechanism of an automatic blow molding machine, which belongs to an auxiliary mechanism matched with the automatic blow molding machine. It consists of a bottle clamping device for holding the bottle that needs to be cut off the flash of the bottle mouth, a moving device and a cutting flash device for cutting off the flash of the bottle mouth after the bottle is held by the bottle clamping device. The bottle holding device described above is connected with a pair of inner and outer templates that can be opened and closed of the automatic blow molding machine; the moving device is connected to the bottle holding device; the flash cutting device is arranged on the moving device , and corresponds to the top of the pinching device. The advantage is: after adopting the above structure, the bottle holding device, the moving device and the flash cutting device are organically connected to each other to form a whole, which can not only realize the online cutting of flash on the automatic blow molding machine, but also ensure the cutting of flash. The side device moves synchronously with the bottle holding device to eliminate the movement error between the two and ensure the cutting quality; the overall structure is simple and the cutting efficiency is high.

Description

Neck cutting mechanism of automatic blow molding blow molding machine

technical field

The invention relates to a bottle mouth cutting mechanism of an automatic blow molding blow molding machine, which plays the role of cutting off the process flash or process waste left on the bottle mouth after the bottle is blow molded, and is matched with the automatic blow molding blow molding machine. auxiliary agencies.

Background technique

It goes without saying that automatic blow molding blow molding machines are capable of efficiently blowing a variety of bottles. But, when blowing bottles such as jars, milk products bottles, etc., due to technological reasons, there are flashes on the mouth of the bottle after blowing. This flash is also called waste edge, which needs to be cut off. The traditional method of cutting the flash of the bottle mouth is to use manual cutting, which brings problems such as a lot of manpower, low work efficiency, and irregular incision; while the more advanced method is to use machine cutting, when the blow molding machine will After the bottle blowing is completed, it is transported to another bottle cutting machine to cut off the flash. Although the efficiency and the regularity of the cut are better than the former, because the bottle cutting machine is separated from the blow molding machine, Therefore, there is inevitably a transfer process, which also requires a corresponding transfer manpower input, or, special operators are required to feed the bottles to the bottle cutter one by one. Therefore, the amount of manpower input and cutting efficiency are still not enough. Desirable.

In view of this, U.S. Patent No. US3886824 discloses a blowing method and device for a hollow plastic container, which also focuses on the technical content of cutting off the flash left on the hollow container, as can be seen from the description and drawings provided , The structure of the flash cutting device is composed of a strip blade cutting mechanism, a power rotary cutting mechanism, a hollow container clamping and positioning mechanism, and a hollow container conveying mechanism. Strip blade cutting mechanism includes blade, knife holder, fixed plate, guide sleeve, guide column, compressed air controller, etc.; power rotary cutting mechanism includes frame, stepping motor, large sprocket, chain, small sprocket, a pair of Large gears, pin shafts, rotating shafts, positioning pins, rollers, disc knives, etc.; hollow container positioning mechanisms include eccentric push rods, rollers, arms, pivot shafts, cams, etc.; hollow container conveying mechanisms include conveyor belts, etc. Specifically, the stepper motor drives a pair of large sprockets and a group of small gears placed on the positioning and fixed hips to rotate through the chain, and a group of positioning and fixing arms are fixed on the turntable of the rotating frame, and the rotation is driven by the power through the transmission shaft. In this embodiment, the cutter head shaft is arranged in the center hole of the bushing of each fixed arm, the upper end is fixed with the pinion, and the lower end is fixed with the disc and the disc cutter to cut the flash of the bottle mouth of the hollow container with a rotary knife. In order to prevent the bottle mouth of the hollow container from shifting during cutting, it is clamped by a pair of positioning rollers, one of which is fixed at one end of the swing hip, and the center hole of the swing arm is sleeved on the shaft sleeve, and fixed on the positioning arm Clamping is realized by the roller on the upper arm, and the clamping force of the swing arm is realized by the fixed cam guide with sliding groove. In this way, the disc cutter rotates counterclockwise to drive the bottle mouth to rotate clockwise to complete the cutting. On the other side corresponding to the bottle mouth, there is also a strip blade cutting mechanism composed of a guide post, a knife seat guide sleeve, a knife holder seat, a fixed plate, and a strip blade. Under the push of the cylinder, the guide sleeve fixed plate drives The knife holders rotate at an angle together, so that the blades squeeze and cut the bottle mouth at the same time. In addition, the bottles that need to be cut off must be transported by a special chain conveyor.

The disadvantages of the above structure are: 1. It cannot be successfully docked with the blow molding machine, that is to say, it cannot be equipped or connected to the blow molding machine. It is a separate cutting device; 2. The overall structure is complicated and the operation is difficult. It is difficult to implement, because due to the large degree of freedom of movement of the bottle mouth, there are many unstable factors, and it is easy to cause irregular incisions and waste products, so it must be positioned by means of guide positioning rollers to form three stable fulcrums (two rollers) Add disc knife) to realize the cutting; 3, use the conveyer belt to transport the bottle to be cut off the flash, not only makes the whole set of equipment occupy a large space, but also can not be reflected in the online flash removal on the blow molding machine.

Aiming at the deficiencies of Japanese Patent Laid-Open No. 62-128715, Japanese Patent Laid-Open JP11-114975A discloses a mouth flash cutting device for hollow containers. Its technical contribution is to ensure that the mouth of the hollow container will not be deformed, the cut is beautiful, and the whole machine is cheap. . The applicant found that it also has the following deficiencies: one, it cannot be combined with the blow molding machine, and it is also an independent device, which cannot be reflected in the online cutting flash on the blow molding machine; the other is that it is formed by the cutting mechanism. The most important thing is extrusion cutting instead of rotary cutting, so in addition to extending a fixed head into the bottle mouth container of the hollow container to help support, it is also necessary to use a clamping piece to hold it, otherwise the bottle mouth will be deformed; second, every cutting After one action, the cutting arm needs to be opened and closed once, and the adjustment mechanism itself that enables the cutting arm to open and merge for up, down, forward and backward adjustment is relatively complicated; the third is to use a conveyor belt to feed the hollow container that needs to be cut off. Cutting to the cutting mechanism also makes the whole set of cutting device occupy a large space. The fourth is that the overall structure is complicated and does not have economy. For example, it is also equipped with a blower mechanism for blowing off the cut flash.

German patent DE2161246A discloses the process and device of plastic molding hollow parts. In this patent technical scheme, in addition to introducing the blow molding blowing mechanism, it also introduces a method for clamping the molded hollow parts to the vicinity of the separation point of waste parts (flash) The clamping mechanism and a separating mechanism for separating the waste parts and an air supply mechanism for blowing air into the hollow parts while separating the waste parts. Its clamping mechanism is made up of two grippers to form a vacuum gripper (the specific structure of the vacuum gripper is not enlightened). The shaft of the separation mechanism is a hollow shaft sleeve, which is set on the slider. The knife rod support is fixed at the lower end of the hollow shaft sleeve, and the knife is fixed on the knife rod support arm. The moving distance of /insertion is determined by the gap between the air supply pipe and the shaft. A piston device is installed on one side of the slider to control the moving distance of the slider; the air supply mechanism is embodied by the hollow shaft structure. An air tube is arranged in the hollow shaft to maintain the air pressure in the hollow part during cutting. One of the deficiencies of this technical solution also suffers from the defect that it cannot be organically formed as a complete whole with the blow molding and blow molding machine, because objectively it has not given the technical inspiration that it can be integrated with the blow molding and blow molding mechanism, For example, the waste parts separation mechanism relies on the bracket, and it cannot be linked with the inner and outer templates of the blow molding machine; the second is the action of the vacuum gripper clamping the hollow parts, and the action of the blowing mechanism blowing air into the hollow parts 1. The separation mechanism divides the action of removing waste parts into different stages. They cannot be synchronized with the action of the blow molding machine, so the work efficiency cannot be displayed; thirdly, because the moving distance of the tool’s withdrawal/insertion is determined by the supply It is determined by the gap between the air pipe and the shaft. When the moving distance of the tool is not adjusted properly, the air supply pipe will be damaged or the tool will be damaged by the air supply pipe. Fourth, only continuously supply air to the hollow part to ensure the air pressure in the hollow part. Therefore, due to the existence of an air supply mechanism, the structure of the whole device is complicated; fifth, it is difficult to guarantee the cutting quality of waste parts, because a pair of grippers (i.e. a bottle holding device) and a rack and a gear , hollow shaft, shaft sleeve, support arm, slider with cylinder liner, cutter and other components and set on a separate bracket The waste part separation mechanism (ie, the flash cutting device) is separated from each other, that is to say The pair of grippers and the waste separation mechanism cannot be displaced synchronously and equidistantly. In this way, the center of rotation of the tool cannot be aligned with the separation position on the hollow part held by a pair of grippers without error, which affects the cutting quality. Then, even if the waste part separation mechanism and a pair of grippers disclosed in the patent are reluctantly fitted to the automatic blow molding machine respectively, thereby formally showing the online cutting on the blow molding machine, but because the waste parts There is no structural connection between the separation mechanism and the gripper. Even if the original design can fully consider the design requirement that the matching error between the two is very small, however, in the actual use process, due to blow molding blowing The existence of the vibration factor of the bottle machine will cause vibration deformation, which shows that the change error of the moving position of the waste part separation mechanism cannot correspond to the separation position on the hollow part clamped by the gripper. The applicant found that only by keeping the waste part separation mechanism and the gripper in a synchronized displacement, can the displacement distance error between the two be zero, thereby ensuring the separation quality of the cutting tool at the separation position.

Contents of the invention

The task of the present invention is to provide a device that can be well constituted together with an automatic blow molding machine to reflect on-line flash cutting, and eliminate the displacement of the two by making the bottle clamping device and the flash cutting device move synchronously with each other. The bottle cutting mechanism of the automatic blow molding blow molding machine with simple overall structure and high cutting efficiency to ensure the quality of the cut without error.

The task of the present invention is accomplished in this way, a bottle cutting mechanism of an automatic blow molding blow molding machine, which consists of a bottle clamping device for holding the bottle that needs to be cut off the flash of the bottle mouth, a moving device and a It is composed of a flash cutting device that cuts off the flash on the bottle mouth after the bottle holding device is held by the bottle holding device. The bottle holding device and a pair of inner and outer templates 45 that can be opened and closed with each other of the automatic blow molding machine, 46 connection; the moving device is connected to the pinching device; the flash cutting device is arranged on the moving device and corresponds to the top of the pinching device.

The bottle-holding device of the present invention is composed of a pair of inner and outer mold connecting plates 2,1, and a pair of bottle half molds 20,21, and a pair of inner and outer mold connecting plates 2,1 are respectively connected with the automatic blow molding machine. The inner template 45 and the outer template 46 are connected, and a pair of bottle half molds 20,21 face each other and are detachably placed in a pair of inner and outer template connecting plates 2,1 inside.

The mobile device of the present invention is composed of a fixed mount 23, a movable seat 13, a pair of guide rod sleeves 24, a pair of guide rods 25, and a power cylinder 27. The fixed mount 23 is fixed on the bottle holding device, and the two ends of the movable seat 13 A pair of guide rod holes 14 are provided, and a central shaft hole 5 is provided in the middle of the moving seat 13. A pair of guide rod sleeves 24 are arranged on both sides above the fixed frame 23. A pair of guide rods 25 pass through the guide rod sleeves 24 and then pass through. The guide rod hole 14 is connected with the movable seat 13, and the power cylinder 27 is any one of an air cylinder or an oil cylinder. The extension/retraction of the column 26 drives the displacement of the moving seat 13 on the guide rod 25 .

The trimming device of the present invention consists of a central shaft 4, a central shaft driving mechanism that drives the central shaft 4 to rotate, a rotary knife bar 15, and a blade 18. The central shaft 4 is pivotally arranged on the moving seat 13 of the moving device. , the central shaft driving mechanism is connected with the upper end of the central shaft 4, the rotary cutter bar 15 is fixed at the lower end of the central shaft 4, and the blade 18 is fixed on the rotary cutter bar 15.

The fixing frame 23 of the present invention is fixed on any one of the inner mold connecting plate 2 and the outer mold connecting plate 1 of the bottle pinching device.

A hollow seat cavity 28 is also formed in the moving seat 13 of the present invention, and at least one pair of rotary cutter shafts 36 are additionally provided in the seat cavity 28 and on both sides corresponding to the central axis 4, and the near middle part of the rotary cutter shaft 36 is provided with a rotating shaft. Cutter gear 35, rotary cutter gear 35 is connected with central shaft 4, and the lower end of rotary cutter shaft 36 is fixedly provided with rotary cutter bar 15.

The central axis 4 of the present invention is vertically pivoted on the central axis hole 5 in the middle of the moving seat 13 of the mobile device.

The central axis driving mechanism of the present invention is made of air/oil cylinder 8, cylinder block 9, linkage block 12, driving gear 7, rack 11, and air/oil cylinder 8 is fixed on the cylinder block 9 in a horizontal state, and the cylinder block 9 is fixed on the moving seat 13, the connecting seat 12 is fixed to the front end of the cylinder column 10 of the air/oil cylinder 8, the driving gear 7 is sleeved on the upper end of the central shaft 4, and the rack 11 is slidably arranged on the cylinder seat 9, It meshes with the driving gear 7, and its end is fixed with the linkage seat 12.

The driving mechanism of the central shaft in the present invention is a stepping motor 39, which is fixed on the moving seat 13, and its output shaft is connected with the upper end of the central shaft 4.

The blade 18 of the present invention is any one of a rectangular shape or a disc shape.

The advantages of the present invention: by connecting the bottle clamping device with the inner and outer templates 45, 46 of the automatic blow molding machine, and connecting the mobile device with the bottle clamping device and setting the flash cutting device on the mobile device, The bottle holding device, moving device, and flash cutting device are organically connected to each other as a whole, which can not only realize online cutting flash on the automatic blow molding machine, but also ensure that the flash cutting device moves synchronously with the bottle holding device The movement error of the two is eliminated to ensure the cutting quality; the overall structure is simple and the cutting efficiency is high.

Description of drawings

FIG. 1 is a structural diagram of an embodiment of the present invention.

Fig. 2 is a structural diagram of another embodiment of the present invention.

Fig. 3 is a structural diagram of still another embodiment of the present invention.

FIG. 4 is a schematic diagram of the structure shown in FIG. 2 of the present invention configured on an automatic blow molding machine.

FIG. 5 is a schematic view showing the state of cutting the flash edge 44 of the bottle mouth by the structure of FIG. 1 of the present invention.

FIG. 6 is a schematic diagram of the cutting state of the bottle mouth flash 44 by the structure of FIG. 2 of the present invention.

FIG. 7 is a schematic view of the cutting state of the bottle mouth flash 44 by the structure of FIG. 3 of the present invention.

FIG. 8 is a schematic diagram of the bottle 43 after the bottle finish 44 is cut off by the mechanism of the present invention.

Detailed ways

Example 1:

Please see Fig. 1 and in conjunction with Fig. 5, the inner and outer mold connecting plates 2, 1 of the bottle-holding device are respectively connected with the inner and outer templates 45, 46 of the mold frame 42 of the automatic blow molding machine (see Fig. 4). This connection can be realized with screws, it can also be welded, and so on. In this way, the inner and outer mold connecting plates 2,1 can be opened and closed with the opening and closing of the inner and outer templates 45,46 of the mold frame 42 of the automatic blow molding machine, and a pair of bottle half molds 20,21 face each other and can Dismountably be arranged on the inner side of a pair of inner and outer mold connecting plates 2,1, when the shape and specifications of the bottle 43 etc. change, then the bottle half molds 20,21 also change accordingly. The bottle half mold 20,21 illustrated in Fig. 1 is only aimed at a certain kind of bottle 43 of the size shown in Fig. 5 and Fig. 8, so the mold half mold 20, 21 The cavity shape should not be limited by the shape shown in FIG. 1 .

In this embodiment, the upper and lower ends of the central shaft 4 of the flash cutting device are respectively pivoted on the central shaft hole 5 on the moving seat 13 of the moving device by means of a pair of bearings 6 and 3 . That is to say, the power for driving the central shaft driving mechanism that is used to make the central shaft 4 rotate can be an air cylinder or an oil cylinder, so the applicant refers to it as an air/oil cylinder 8. In addition, it can also be a stepper motor 39, except In addition, other powers that are similar and easy to infer can also be used. In this embodiment, although the applicant takes the air/oil cylinder 8 as an example, it cannot and should not be understood as a limitation to the technical solution of the present invention. The principle of air/oil cylinder 8 is the same as that of the power cylinder 27 of the aforementioned mobile device, and it is also fixed on the cylinder base 9 in a horizontal state, while the cylinder base 9 is fixed with the movable seat 13 by bolts, and the cylinder of the air/oil cylinder 8 The column 10 is fixed on the linkage seat 12 after passing through the cylinder seat 9 . Driving gear 7 is sleeved on the upper end of central shaft 4, and one end of tooth bar 11 is fixed with link seat 12 after passing through cylinder block 9, and the meshing tooth on the other end is meshed with driving gear 7. As the cylinder column 10 expands or retracts in the cylinder body of the air/oil cylinder 8, it can drive the moving seat 12 to move accordingly, so that the rack 11 also moves under the movement of the moving seat 12. The teeth on the bar 11 are meshed with the driving gear 7 that is sleeved on the upper end of the central shaft 4 , so the rack 11 drives the driving gear 7 to rotate, thereby making the central shaft 4 rotate. Blade 18 is fixed on the lower end of rotary cutter bar 15 with set screw 19, and rotary cutter bar 15 is 7 fonts, and the upper end has a rotary cutter shaft hole 16, is sleeved in the lower end of center shaft 4, and is screwed with set screw 17. When the central axis 4 rotated, the rotary cutter bar 15 was moved, and the bottle finish 44 of the bottle 43 was cut by the blade 18 fixed on it (see Fig. 5 for details). In this embodiment, a single rotary cutter bar 15 is fixed on the lower end of the central shaft 4, and in this case, it is shown as a rotary cutting of the flash 44 of the bottle mouth of a single bottle 43, so although the efficiency is high, it cannot be obtained. Extreme play. If there is more than one blow molding unit of the die head device 40 of an automatic blow molding blow molding machine, then there are more than one blow molding heads of the blow device, so corresponding rotary cutter shafts 15 are required to adapt. In this regard, it can be seen and fully understood that one of the rotary tool bars 15 can be set on the central shaft 4 through the next embodiment, while the remaining rotary tool bars 15 are arranged on other additional extensions driven by the central shaft 4. Even on the central axis 4, the rotary tool bar 15 is not set, and all the rotary tool bars 15 are respectively arranged on other additional parts driven by the central shaft 4, the latter can be called indirectly setting the rotary tool bar 15 On the central axis 4. Therefore, no matter whether the rotating tool bar 15 is arranged on the central axis 4 indirectly or directly, it should be understood as the protection scope of the technical solution of the present invention. In addition, the shape of the blade 18 fixed on the rotating tool bar 15 is not limited to the shape shown in the figure, for example, it may be a thin disk.

The two ends of the moving seat 13 of the moving device offer respectively the guide rod holes 14 for a pair of guide rods 25 to penetrate and pass through, and set the central shaft hole 5 in the middle of the moving seat 13 and as far as possible in the central part, The central axis hole 5 is a through hole for the setting of the central axis 4 . The fixing frame 23 is in the shape of a gantry frame, and the lower sides of the gantry frame are fixed to the outer mold connecting plate 1 by bolts 22. The top of the gantry frame should emerge or be higher than the upper edge of the outer mold connecting plate 1. Each of the two ends is fixed with a guide rod sleeve 24, and each guide rod sleeve 24 is respectively pierced with a guide rod 25, and one end of the guide rod 25 penetrates into the guide rod hole 14 preset on the movable base 13 to realize the connection with the movable base 13 . The power cylinder 27 can also be directly and horizontally fixed on the upper center of the fixed frame 23 of the gantry shape by adding a double plate, and its cylinder column 26 is connected with the wall body after passing through the described upper edge of the fixed frame 23. The middle part of one side of the mobile seat 13 is fixed. If the power cylinder 27 is a cylinder, the air inlet and outlet nozzles on it are respectively connected with the compressed air source device of the blow molding blow molding machine by the inlet and outlet pipes; The oil outlet nozzle is respectively connected with the hydraulic oil supply device of the blow molding blow molding machine by the oil inlet and return pipes. Of course, it depends on the conditions of the power source configured on the automatic blow molding machine. When the cylinder column 26 of the power cylinder 27 stretches/retreats, it drives the entire moving base 13 to move forward and backward in a horizontal state under the guidance of a pair of guide rods 25 . In this embodiment, the applicant indicated and described that the fixing bracket 23 is fixed on the outer formwork connecting plate 1, and it is also possible to fix it on the inner mold connecting plate 2, so it should not be considered that the fixing bracket 23 Change of position is considered to break away from the scope of the present invention.

Example 2

Please refer to Fig. 2 and Fig. 6, the structure of this embodiment is the expansion of the structure disclosed in Embodiment 1, this expansion is mainly reflected in the change of the moving seat 13 and the central gear 30 is set at the lower end of the central shaft 4, A hollow seat cavity 28 is formed in the moving seat 13, and by setting the corresponding parts to be mentioned below, it becomes a structural form exactly like a gear box, and the rest are still the same as in Embodiment 1. There are also two groups of rotary cutter shafts 36 belonging to the flash cutting device on the mobile seat 13, and each group of rotary cutter shafts 36 has at least one pair, and a rotary cutter bar 15 is affixed to the bottom of each rotary cutter shaft 36. In this case, the lower end of the central shaft 4 may or may not be provided with the rotary cutter bar 15, and it is necessary to add a central gear 30. Two groups of rotary knife shafts 36 are shown in the figure, each group has a pair, respectively located on both sides of the central axis 4, but the number can be changed, for example, when the blow molding unit of the die head device 40 of the automatic blow molding blow molding machine is Six o'clock, and the inflation forming head of inflation device 41 is also correspondingly six o'clock, then the two groups of rotary cutter shafts 36 that are positioned at the both sides of central axis 4 just have three respectively, and so on, carry out corresponding increase and decrease . It can be seen from this that the number of rotary cutter shafts 36 arranged on the moving seat 13 is more or less does not constitute a limitation to the overall technical solution of the present invention. Each rotary cutter shaft 36 is fixedly equipped with a rotary cutter gear 35 close to the middle thereof, and the rotary cutter gear 35 on both sides of the central shaft 4 is engaged with the central gear 30 fixed on the central shaft 4, and adjacent The transition gear 34 is used for transitional meshing between the rotary cutter shafts 36 . The transition gear 34 is arranged on the transition gear shaft, and the transition gear shaft is pivotally placed in the seat cavity 28 of the moving seat 13 through the bearing 29 . In the structure of this embodiment, a moving seat cover 33 is provided on the moving seat 13 , and a shaft hole 31 for the upper end of the central shaft 4 to pass through is opened on the moving seat cover 33 corresponding to the central axis 4 . Under the situation that there is the movable seat cover 33, the cylinder block 9 of the central axis driving mechanism of the flash cutting device is just fixed on the movable seat cover 33. When the cylinder column 10 of the air/oil cylinder 8 is stretched/retracted, it will drive the moving seat 12 to move the rack 11 to the left/right, thereby driving the driving gear 7 meshing with the rack 11 to make the central axis 4 Clockwise/reverse rotation, the central gear 30 at the lower end drives the rotary cutter gear 35 on the first rotary cutter shaft 36 on both sides of the central shaft 4, and then drives the rotary cutter gear 35 on the other rotary cutter shaft 36 through the transition gear 34 Turn, thereby realizing the movement of chain reaction. This structure obtained without departing from the overall technical solution of the present invention has the effect of more efficiently cutting off the bottle finish 44 of the bottle 43 (see FIG. 6 for details).

Example 3

Please refer to FIG. 3 and FIG. 7 , in this embodiment, the central shaft driving mechanism for driving the central shaft 4 to rotate is changed to adopt a stepping motor 39 , and the rest are the same as in Embodiment 1 or 2. The stepping motor 39 is located on or claims to be seated on the moving seat 13 through a bracket 37, and the output shaft of the stepping motor 39 is connected with the central shaft 4 through a coupling 38, and the central shaft 4 is still supported by a pair of bearings 6,3. Realize being pivotally placed on the mobile seat 13. Compared with Embodiment 1 and Embodiment 2, the structure of this embodiment is simpler in structure and cheaper in cost.

FIG. 8 schematically shows the situation after the bottle finish 44 of the bottle 43 is cut off through the implementation of Examples 1, 2, and 3.

The applicant selected Figures 2 and 6 and combined with Figure 4 to describe the process of cutting off the flash 44 of the bottle mouth of the bottle 43 according to the present invention. The both sides of, thereby illustrate on an automatic blow-molding blow molding machine, can be equipped with the present invention that two cover structures are exactly the same. The automatic blow molding blow molding machine first forms the parison by the die head device 40, then clamps the parison by the bottle mold clamping on the mold frame 42, and moves to the corresponding blowing device 41. The blowing head is inflated into a bottle 43 with bottle mouth flash 44, and then moves back to the bottom of the die head device 40 along with the opening of the bottle mold on the mold frame 42, that is, the inner and outer templates 45, 46. All bottles 43 hanging on the inflation head of inflation device 41 just corresponded between a pair of bottle half molds 20,21 of the bottle clamping device of the present invention at this moment, along with the bottle molds on the mold frame 42 i.e. inside, The clamping of the outer templates 45, 46 drives the inner mold connecting plate 2 and the outer mold connecting plate 1 of the present invention to clamp the molds simultaneously, so that a pair of bottle half-moulds 20, 21 clamp the bottle 43, and then the inflation device 41 The head moves up, and then the mold base 42 and the bottle mold move to the corresponding blowing device 41. At this time, under the action of the power cylinder 27, the cylinder column 26 is stretched outwards, driving the moving seat 13 to move, fixed on the rotary Blade 18 on the cutter bar 15 just sticks to the bottom of the bottleneck flash 44 that needs to be cut off and cuts out a mouth earlier, and its state can be by shown in Fig. 5,6,7. Immediately afterwards, the air/oil cylinder 8 moves, and its cylinder column 10 stretches immediately, so that the carrier 12 moves to the right, and drives the tooth bar 11 to move to the right. Since the rack 11 is meshed with the driving gear 7, the driving gear 7 is rotated during the rightward movement of the rack 11, the central shaft 4 is rotated, the central gear 30 drives the rotary cutter gear 35 to rotate, and the rotary cutter shaft 15 is rotated. , until the blade 18 is rotated 360°, the bottleneck burr 44 is cut off from the bottle 43 . Then, along with the opening of the inner and outer templates 45, 46 of the formwork 42, the inner and outer movable mold connecting plates 2, 1 are driven to open, so that the bottle 43 falls off. At the same time, under the action of the power cylinder 27, the moving seat 13 returns to original position, and air/oil cylinder 8 is the same. Thus, the removal of the flash 44 at the mouth of the bottle 43 after inflation molding is completed repeatedly.

Claims (10)

1. the mouth cutting mechanism of an automatic blow-molding bottle blowing machine, it is used for hold under the arm bottle and a mobile device and that need excise that the bottle of bottleneck overlap seizes on both sides by the arms are used for the overlap device of cutting of the bottleneck overlap excision on the bottle after holding bottle under the arm and seizing on both sides by the arms is formed by one, but it is characterized in that described a pair of inside and outside template (45), (46) connection of holding the folding each other of bottle and automatic blow-molding bottle blowing machine under the arm; Described mobile device is connected to be held under the arm on the bottle; The described overlap device of cutting is located on the mobile device, and corresponding to the top of holding bottle under the arm.

2. the mouth cutting mechanism of automatic blow-molding bottle blowing machine according to claim 1, it is characterized in that the described bottle of holding under the arm is made of a pair of inside and outside mould web (2), (1), a pair of bottle half module (20), (21), a pair of inside and outside mould web (2), (1) connect with the inner formword (45) of automatic blow-molding bottle blowing machine and exterior sheathing (46) respectively, and a pair of bottle half module (20), (21) face each other and releasably place a pair of inside and outside template web (2), (1) inboard.

3. the mouth cutting mechanism of automatic blow-molding bottle blowing machine according to claim 1, it is characterized in that described mobile device is by fixed mount (23), move seat (13), pair of guide rods cover (24), pair of guide rods (25), power cylinder (27) constitutes, fixed mount (23) is fixed on to be held under the arm on the bottle, the two ends of moving seat (13) offer pair of guide rods hole (14), and the middle part of moving seat (13) offers central shaft hole (5), pair of guide rods cover (24) is located at the both sides of fixed mount (23) top, pair of guide rods (25) was passed through leader casing (24) back injection guide rod hole (14) and was moved seat (13) binding, power cylinder (27) is any one in cylinder or the oil cylinder, be fixed among fixed mount (23) top with being the level of state, its cylinder post (26) is fixed with moving seat (13), moves seat (13) at guide rod (25) top offset by stretching, extension/retraction drive of cylinder post (26).

4. the mouth cutting mechanism of automatic blow-molding bottle blowing machine according to claim 1, it is characterized in that the described overlap device of cutting is made of central shaft (4), the central shaft driving mechanism that orders about central shaft (4) rotation, rotor bar (15), blade (18), central shaft (4) is hubbed on the mobile seat (13) of described mobile device, the central shaft driving mechanism is connected with the upper end of central shaft (4), rotor bar (15) is fixedly arranged on the lower end of central shaft (4), and blade (18) is fixed on the rotor bar (15).

5. the mouth cutting mechanism of automatic blow-molding bottle blowing machine according to claim 3, it is characterized in that described fixed mount (23) is fixed on the internal mold web (2) of holding bottle under the arm and external mold web (1) both appoint and select on the one.

6. the mouth cutting mechanism of automatic blow-molding bottle blowing machine according to claim 3, it is characterized in that also being formed with in the described mobile seat (13) the seat chamber (28) of a hollow, have additional at least one pair of rotor axle (36) in the present chamber (28) and corresponding to the both sides of central shaft (4), rotor gear (35) is established at the nearly middle part of rotor axle (36), rotor gear (35) connects mutually with central shaft (4), and the lower end of rotor axle (36) sets firmly rotor bar (15).

7. the mouth cutting mechanism of automatic blow-molding bottle blowing machine according to claim 4 is characterized in that described central shaft (4) vertically is hubbed on the central shaft hole (5) at mobile seat (13) middle part of mobile device.

8. the mouth cutting mechanism of automatic blow-molding bottle blowing machine according to claim 4, it is characterized in that described central shaft driving mechanism is by gas/oil cylinder (8), cylinder seat (9), continous action base (12), driving gear (7), tooth bar (11) constitutes, gas/oil cylinder (8) is fixed on the cylinder seat (9) with being the level of state, cylinder seat (9) is fixed on and moves on the seat (13), continous action base (12) is fixed with the leading section of the cylinder post (10) of gas/oil cylinder (8), driving gear (7) cover is fixed in central shaft (4) upper end, tooth bar (11) is located on the cylinder seat (9) slidably, nibble with driving gear (7) and to join, its end and continous action base (12) are fixing.

9. the mouth cutting mechanism of automatic blow-molding bottle blowing machine according to claim 4, it is characterized in that described central shaft driving mechanism is stepper motor (39), stepper motor (39) is fixed on the described mobile seat (13), and its output shaft connects with central shaft (4) upper end.

10. the mouth cutting mechanism of automatic blow-molding bottle blowing machine according to claim 4, it is characterized in that described blade (18) for rectangular-shaped or discoid in any one.

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