CN116242117A - Tray detection device in oven - Google Patents

Abstract

The invention relates to the technical field of oven equipment, and discloses an in-oven tray detection device, which comprises an oven box body, wherein a support frame is arranged in the oven box body, conveying equipment is arranged on the support frame, a tray is placed on the conveying equipment, and a detection mechanism for detecting the position of the tray is arranged in the oven box body; the invention effectively solves the problems that the service life and reliability of a conventional temperature-resistant travel switch and a conventional proximity switch are easily affected by high temperature in an oven, and when different baking times are needed for workpieces with different sizes, the baking time needs to be regulated and controlled manually each time, the processing efficiency of the workpieces is affected, the processing efficiency of the workpieces is low, and when a workpiece disc is conveyed into the oven, the temperature loss is avoided by adopting a door curtain at the inlet and the outlet of the two sides of the oven, but the door curtain is easy to cause the temperature loss in the oven body, and the baking treatment of the workpieces is affected.

Description

A pallet detection device in an oven

technical field

The invention relates to the technical field of oven equipment, in particular to a tray detection device in an oven.

Background technique

In the field of industrial technology production and chemical industry, ovens are used to bake and dry workpieces. What have is that the workpiece is transported to the oven for baking through the conveying device. The workpiece is placed on the workpiece tray, and the workpiece tray is placed on the conveying device, which is transported to the inside of the oven by the conveying device for baking. When the workpiece is sent to the oven for baking, most of them are transported by beat, but the beat transport requires precise positioning of the pallet stop position.

At present, the conventional temperature-resistant limit switch and proximity switch are inside the oven, and the solvent released when the product is baked in the oven at high temperature greatly reduces their service life and reliability. There is interference in other parts of the oven, which cannot be avoided or installed flexibly, and when the workpieces on the tray are sent to the oven for processing, the baking time required for different sizes of workpieces is different, and each time the baking time needs to be manually adjusted back and forth. It affects the processing efficiency of the workpiece, making the processing efficiency of the workpiece low, and when the workpiece disk is transported into the oven, the entrance and exit on both sides of the oven are mostly used to avoid the loss of temperature, but the door curtain is still easy to cause the temperature inside the box The loss of the workpiece will affect the baking process of the workpiece.

Therefore, it is very necessary to design a pallet detection device in an oven.

Contents of the invention

The object of the present invention is to propose a detection device for trays in an oven in order to solve the problems mentioned in the prior art.

In order to achieve the above object, the present invention adopts the following technical solutions:

A pallet detection device in an oven, comprising an oven box body, a support frame is arranged in the oven box body, a conveying device is arranged on the support frame, a tray is placed on the conveying device, and a useful detection device is arranged in the oven box body The detection mechanism of the pallet position;

The oven body is provided with a closing mechanism for reducing heat loss and a transmission mechanism for driving the closing mechanism, and the transmission mechanism is connected with the detection mechanism.

Preferably, there are two closing mechanisms, and the two closing mechanisms are respectively arranged on the left and right sides of the oven body, the transmission mechanism is respectively connected with the two closing mechanisms, and the support frame is provided with a mounting plate, The left end of the detection mechanism is installed on the mounting plate, and the right end is set on the oven box body. The inlet and outlet on the oven box body can be closed by the closing mechanism, so as to avoid the easy loss of temperature in the oven and affect the baking effect on the workpiece. .

Preferably, the detection mechanism includes a fixed plate, a counterweight and a connecting rod, the fixed plate is provided with a positioning rod, a pulley and a connecting shaft, the positioning rod is provided with a rotating mechanism, and the connecting shaft The first pulley assembly is provided, the front end of the connecting rod is connected to the second pulley assembly, the rear end of the outer surface of the connecting rod is provided with a positioning plate, the outer surface of the positioning plate protrudes from the connecting plate, and the protruding connecting plate is provided with The second pulley can detect whether the current tray has moved to the designated position in the oven box through the detection mechanism.

Preferably, both sides of the positioning plate are bent for guidance, guide grooves are provided on the left and right sides of the counterweight, and the counterweight is movably arranged at the bends on both sides of the positioning plate through the guide grooves on both sides. The left side surface of the counterweight is provided with rack one, and the protective shell is installed on the positioning plate. Three mounting holes are equidistantly opened on the rear surface of the protective shell, and three proximity switches are respectively installed in the three mounting holes. , the position of the counterweight can be detected through three proximity switches.

Preferably, the rotating mechanism includes a rotating tube, the lower end of the outer surface of the rotating tube is provided with a driving plate 1, the upper surface of the rotating tube is provided with a driving plate 2, the driving plate 1 and the front end of the driving plate 2 are both arranged There are rollers, and the two rear ends of the drive plate are provided with pull plates, and the pull plates are provided with through holes.

Preferably, the first pulley, the first pulley assembly, the second pulley assembly and the second pulley are provided with a rope, the front end of the rope is arranged in the through hole on the pull plate and connected with the pull plate, the rear end of the rope is connected to the counterweight The block is connected, and the rope can be pulled through the rotation of the pull plate to drive the counterweight to move the position.

Preferably, the transmission mechanism includes a rotating pin 1, a rotating pin 2 and a differential assembly, the outer surface of the rotating pin 1 is provided with a gear cylinder 1 at the front and rear ends, and the rotating pin 2 and the rotating pin 3 are provided with Two, the front ends of the outer surfaces of the two rotating pins 2 are provided with gear cylinder 2, and the rear ends of the outer surfaces of the two rotating pins 2 are equipped with gear 1, and the gear cylinder 1 at the rear end of the rotating pin 1 is connected to the differential gear. The components are meshed and connected, the front ends of the outer surfaces of the two rotating pins three are provided with gear cylinders three, the rear ends of the outer surfaces of the two rotating pins three are equipped with gears two, and the two gear cylinders three are respectively closed with the two Institutional connections.

Preferably, the first rotating pin, the second rotating pin and the third rotating pin are all installed on the oven body through bushings, and the gear cylinder at the front end of the rotating pin is connected with the two gear cylinders respectively through two toothed belts. The two gears are respectively connected to the two gears through two toothed belts. The gear cylinder can drive the two gear cylinders to rotate synchronously through the toothed belt one. The gear one can drive the gear through the toothed belt two. The two rotate synchronously, thereby driving the two closing mechanisms to move synchronously.

Preferably, the closing mechanism includes a closing plate and teeth, a rack 2 is provided in the middle of the outer surface of the closing plate, and two limit rods are provided on the upper and lower sides of the rack 2, and the teeth are provided There are two, and two limit holes are provided on the two teeth, and the two teeth are respectively set on the limit rods on the upper and lower sides of the rack two through the limit holes. The outer surface of the rod is provided with a spring.

Preferably, two sliders are arranged above the inner surface of the closing plate, and a chute is provided on the oven body, and the sliders are movably arranged in the chute, and the sliders can move in the chute, thereby Make the closing plate move up and down to close.

Compared with the prior art, the present invention has the following beneficial effects:

The invention can detect the position of the tray entering the oven through the provided detection mechanism, so that the tray stops at the proper position for baking, and the proximity switch for detecting the position of the tray is arranged outside the oven body, which can effectively avoid the oven Excessive temperature inside will affect the life and reliability of the proximity switch, and the detection mechanism can replace the baking time range according to the size of the workpiece through the cooperation with the pallet, without manual switching back and forth, which further improves the Efficiency of baking the workpiece.

And through the provided closing mechanism, when the workpiece on the tray is sent to the designated position in the oven for baking, the inlet and outlet on both sides of the oven can be effectively closed, which can effectively reduce the loss of heat in the oven, thereby avoiding affecting the workpiece. Baking treatment.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the accompanying drawings that need to be used in the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For Those of ordinary skill in the art can also obtain other drawings based on these drawings without making creative efforts.

Fig. 1 is the overall structure schematic diagram of the present invention;

Fig. 2 is a three-dimensional view of the rear surface of the present invention;

Fig. 3 is a partial sectional view of the front surface of the present invention;

Fig. 4 is a position view of the detection mechanism of the present invention;

Fig. 5 is an exploded view of the overall structure of the present invention;

Fig. 6 is a connection view of the detection mechanism and the protective shell of the present invention;

Fig. 7 is the removal view of the positioning plate of the detection mechanism structure of the present invention;

Fig. 8 is a three-dimensional view of the rear surface of the detection mechanism of the present invention;

Fig. 9 is a structural view of the rotating mechanism of the present invention;

Fig. 10 is a view of the installation position of the proximity switch of the present invention;

Fig. 11 is a structural view of the transmission mechanism of the present invention;

Fig. 12 is a structural view of the closing mechanism of the present invention;

Figure 13 is a partially exploded view of the closure mechanism of the present invention;

Figure 14 is a structural view of two pallets of the present invention.

Description of drawing numbers: 1. Oven body; 2. Support frame; 3. Conveying equipment; 4. Mounting plate; 5. Rope; 6. Detection mechanism; 61. Fixed plate; 62. Rotation mechanism; 622, driving plate two; 623, rotating tube; 63, connecting shaft; 64, pulley assembly one; 65, pulley assembly two; 66, connecting rod; 67, positioning plate; 68, pulley two; 69, counterweight block; 610 , rack one; 7, transmission mechanism; 71, differential assembly; 72, rotating pin one; 73, gear cylinder one; 74, gear cylinder two; 75, toothed belt one; 76, gear one; 77, toothed belt two ; 78, rotating pin three; 79, gear cylinder three; 8, closing mechanism; 81, closing plate; 82, rack two; 83, teeth; 84, spring; 9, protective shell; 10, proximity switch; 11, Tray; 111, contact plate one; 112, contact plate two.

Implementation

The present invention will be described in further detail below in conjunction with the accompanying drawings.

The following description serves to disclose the present invention so that those skilled in the art can realize the present invention. The preferred embodiments described below are only examples, and those skilled in the art can conceive of other obvious modifications. The basic principles of the present invention defined in the following description can be applied to other embodiments, variations, improvements, equivalents and other technical solutions without departing from the spirit and scope of the present invention.

Those skilled in the art should understand that in the disclosure of the present invention, the terms "vertical", "transverse", "upper", "lower", "left", "right", "front", "rear", " The orientations or positions indicated by "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present invention The above terms are not to be construed as limitations of the present invention because they are used to simplify the description, rather than to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation.

It can be understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element The quantity can be multiple, and the term "a" cannot be understood as a limitation on the quantity.

Example

Please refer to Figure 1-10, a pallet detection device in an oven, including an oven body 1, a support frame 2 is arranged inside the oven body 1, a conveying device 3 is arranged on the support frame 2, and a tray 11 is placed on the conveying device 3 , a detection mechanism 6 useful for detecting the position of the tray 11 is arranged in the oven body 1;

The oven body 1 is provided with a closing mechanism 8 for reducing heat loss and a transmission mechanism 7 for driving the closing mechanism 8 to operate. The transmission mechanism 7 is connected with the detection mechanism 6 .

There are two closing mechanisms 8, and the two closing mechanisms 8 are respectively arranged on the left and right sides of the oven body 1, the transmission mechanism 7 is connected with the two closing mechanisms 8 respectively, the support frame 2 is provided with a mounting plate 4, and the left end of the detection mechanism 6 is Installed on the mounting plate 4, and the right end is arranged on the oven box body 1, the inlet and outlet on the oven box body 1 can be closed by the closing mechanism 8, so as to avoid the easy loss of temperature in the oven and affect the baking effect on the workpiece.

The detection mechanism 6 includes a fixed plate 61, a counterweight 69 and a connecting rod 66, the fixed plate 61 is provided with a positioning rod, a pulley and a connecting shaft 63, the positioning rod is provided with a rotating mechanism 62, and the connecting shaft 63 is provided with a block pulley Part 1 64, the front end of connecting rod 66 is connected with pulley assembly 2 65, and the rear end of the outer surface of connecting rod 66 is provided with a positioning plate 67, and the outer surface of positioning plate 67 protrudes from the connecting plate, and the protruding connecting plate is provided with pulley 2 68 , whether the current tray 11 has moved to a designated position in the oven box 1 can be detected by the detection mechanism 6 .

The two sides of the positioning plate 67 are bent for guidance, and the left and right sides of the counterweight 69 are provided with guide grooves. The surface is provided with a rack 1 610, and a protective case 9 is installed on the positioning plate 67. Three mounting holes are equidistantly provided on the rear surface of the protective case 9, and three proximity switches 10 are respectively installed in the three mounting holes, and the three proximity switches 10 are respectively It is the first switch, the second switch and the third switch, the second switch is arranged between the first switch and the third switch, the first switch is above the second switch, and the counterweight 69 can be adjusted by three proximity switches 10 The position of the counterweight 69 is detected, and when the counterweight 69 falls, the third switch will alarm after the counterweight 69 is not detected, reminding the worker that the counterweight 69 falls.

The rotating mechanism 62 includes a rotating tube 623, the lower end of the outer surface of the rotating tube 623 is provided with a drive plate 1 621, the top of the outer surface of the rotating tube 623 is provided with a driving plate 2 622, and the front ends of the driving plate 621 and the driving plate 2 622 are provided with rollers. Drive plate two 622 rear ends are provided with pull plate, and pull plate is provided with through hole, and tray 11 is provided with two kinds according to needs, and a kind of tray 11 is only provided with contact plate one 111, is used for placing the lesser workpiece of build, and another A tray 11 is provided with a contact plate 111 and a contact plate 2 112, which are used to place larger workpieces. Different trays 11 are selected according to the size of the workpieces, and the baking time of the oven can be automatically adjusted through different trays 11 .

Pulley 1, pulley assembly 1 64, pulley assembly 2 65 and pulley 2 68 are provided with rope 5, the front end of rope 5 is arranged in the through hole on the pull plate and is connected with the pull plate, and the rear end of rope 5 is connected with counterweight 69 , the front end of the rope 5 is fixed in the through hole, and the rope 5 can be pulled by rotating the pull plate, thereby driving the counterweight 69 to move in position.

When the present invention is in use, different pallets 11 are selected according to the size of the workpiece, thereby determining the baking time range of the oven for the workpiece, and then the pallet 11 is placed on the conveying device 3, and the conveying device 3 is started, and the pallet is transported by the conveying device 3 11 is transported into the oven body 1, and the workpiece on the tray 11 is baked. When the tray 11 enters the oven body 1, the contact plate 111 on the side of the tray 11 will preferentially contact with the drive plate 621. As soon as the pulley is in contact, the first roller is pushed to the left. The first roller rotates to the left with the rotating pipe 623 through the first driving plate 621, so that the second driving plate 622 rotates together. When the first driving plate 621 rotates, it pulls the rope 5 connected to it. At one end, the rope 5 passes through the pulley one, the pulley two 68, the pulley assembly one 64 and the pulley assembly two 65, and can pull the counterweight 69 to move upward through the rope 5, so that the counterweight 69 moves to the second switch, and the second switch After the counterweight 69 is detected, the conveying device 3 continues to convey the tray 11 to the interior for a certain distance and then stops, so that the tray 11 can just stop at a proper position in the oven for baking;

When the rotating tube 623 rotates, it will drive the driving plate 2 622 to rotate to the specified position. When the second proximity switch 10 detects the counterweight 69, the tray 11 will continue to be transported to the inside for a certain distance. When the tray 11 has a contact When plate two 112, can contact with roller two, thereby pushes roller two to the left, makes roller two drive rotating pipe 623 to continue to rotate to the left, makes driving plate one 621 continue to rotate to the left, and continues to pull rope 5, makes The counterweight 69 rises to the third switch, and the baking time can be switched to prolong the baking time, and larger workpieces can be fully baked.

Please refer to Figures 11-14, the transmission mechanism 7 includes a rotating pin 1 72, a rotating pin 2 and a differential assembly 71, the front and rear ends of the outer surface of the rotating pin 72 are provided with a gear cylinder 1 73, the rotating pin 2 and the rotating pin 3 78 are all provided with two, two rotating pin two outer surface front ends are all provided with gear cylinder two 74, two rotating pin two outer surface rear ends are all provided with gear one 76, the gear cylinder one 73 of rotating pin one 72 rear ends and The differential assembly 71 is meshed and connected, the front ends of the outer surfaces of the two rotating pins 3 78 are all provided with gear cylinders 3 79, and the rear ends of the outer surfaces of the two rotating pins 3 78 are all provided with gears 2, and the two gear cylinders 3 79 are connected to the two gear cylinders 79 respectively. The closing mechanism 8 is connected, and when the rack one 610 moves for a short distance, the closing mechanism 8 can move up and down a large distance through the differential assembly 71 and the transmission mechanism 7 .

Rotating pin one 72, rotating pin two and rotating pin three 78 are all installed on the oven box body 1 by axle sleeves, and the gear cylinder one 73 at the front end of the rotating pin one 72 is respectively connected with two gear cylinders two 74 by two toothed belts one 75 The two gears 176 are respectively connected to the two gears 2 through two toothed belts 77. The toothed cylinder 1 73 can drive the two toothed cylinders 74 to rotate synchronously through the toothed belt 1 75. The gear 1 76 passes through the toothed belt 2 77. It can drive the second gear to rotate synchronously, thereby driving the two closing mechanisms 8 to move synchronously.

The closing mechanism 8 includes a closing plate 81 and teeth 83. A rack 2 82 is arranged in the middle of the outer surface of the closing plate 81. Two limit rods are arranged on the upper and lower sides of the rack 2 82. There are two teeth 83. Both teeth 83 are provided with two limit holes, and the two teeth 83 are respectively movable on the limit rods on the upper and lower sides of the rack two 82 through the limit holes, and the outer surface of the limit rod is provided with a spring 84 When the tooth cylinder three 79 rotates, it will drive the teeth 83 to move, and the spring 84 on the teeth 83 can drive the rack two 82 to move, thereby driving the closing plate 81 to move up and down. After the closing plate 81 moves to the position, When the gear cylinder 3 79 is still rotating, it will move the tooth 83 and squeeze the spring 84 , and the spring 84 will enable the tooth 83 to rebound so that the tooth 83 is always in contact with the gear cylinder 3 79 .

Two sliders are arranged above the inner surface of the closing plate 81, and a chute is provided on the oven body 1. The sliders are movably arranged in the chute, and the sliders can move in the chute, so that the closing plate 81 moves up and down. closure.

When the tray 11 enters the oven body 1 and the counterweight 69 is rising, it will drive the rack 1 610 to move upward, and drive the differential assembly 71 meshing with it to run, and the differential assembly 71 can be used to accelerate processing, thereby driving the gear cylinder one 73 meshed with it to rotate, and then driving the rotation pin one 72 to rotate, the gear cylinder one 73 on the rotation pin one 72 can drive the gear cylinder two 74 to rotate through the toothed belt one 75, and the gear cylinder two 74 Drive rotating pin two to rotate, then drive gear one 76 to rotate, gear one 76 drives gear two to rotate synchronously by toothed belt two 77, then drives rotating pin three 78 to rotate, and rotating pin three 78 drives gear cylinder three 79 to rotate, gear cylinder Three 79 first drives the teeth 83 meshing with it to move downward, and then pulls the closing plate 81 to move downward as a whole. The third gear cylinder 79 continues to mesh with the second rack 82, and drives the second rack 82 to move downward, and then drives the closing plate 81 to move downward. The plate 81 moves downward, so that the closing plates 81 on both sides of the oven box body 1 fall, which can prevent the temperature in the oven box body 1 from being easily lost from the inlet and outlet of the left and right sides, and avoid affecting the effect of the workpiece when it is baked.

Those skilled in the art should understand that the above description and the embodiments of the present invention shown in the drawings are only examples and do not limit the present invention. The objects of the present invention have been fully and effectively accomplished. The functions and structural principles of the present invention have been shown and described in the embodiments, and the embodiments of the present invention can have any deformation or modification without departing from the principles.

Claims (10)

1. The utility model provides a tray detection device in oven, includes oven box (1), be provided with support frame (2) in oven box (1), be provided with conveying equipment (3), its characterized in that on support frame (2): a tray (11) is placed on the conveying equipment (3), and a detection mechanism (6) for detecting the position of the tray (11) is arranged in the oven box body (1);

the oven is characterized in that a closing mechanism (8) for reducing heat loss and a transmission mechanism (7) for driving the closing mechanism (8) to operate are arranged on the oven body (1), and the transmission mechanism (7) is connected with the detection mechanism (6).

2. The in-oven tray inspection device of claim 1, wherein: the utility model discloses a baking oven, including oven box (1), including support frame (2), closing mechanism (8), drive mechanism (7), detection mechanism (6), closing mechanism (8) are provided with two, two closing mechanism (8) set up respectively in oven box (1) left and right sides, drive mechanism (7) are connected with two closing mechanism (8) respectively, be provided with mounting panel (4) on support frame (2), detection mechanism (6) left end is installed on mounting panel (4), and the right-hand member sets up on oven box (1).

3. The in-oven tray inspection device of claim 1, wherein: the detection mechanism (6) comprises a fixed plate (61), a balancing weight (69) and a connecting rod (66), wherein a positioning rod, a first pulley and a connecting shaft (63) are arranged on the fixed plate (61), a rotating mechanism (62) is arranged on the positioning rod, a first pulley component (64) is arranged on the connecting shaft (63), a second pulley component (65) is connected with the front end of the connecting rod (66), a positioning plate (67) is arranged at the rear end of the outer surface of the connecting rod (66), a connecting plate is arranged on the outer side surface of the positioning plate (67) in a protruding mode, and a second pulley (68) is arranged on the protruding connecting plate.

4. An in-oven tray inspection apparatus according to claim 3, wherein: the locating plate (67) both sides are buckled and are used for the direction, the guide way has been seted up to balancing weight (69) left and right sides, balancing weight (69) are through both sides guide way activity setting in locating plate (67) both sides department of buckling, balancing weight (69) left side surface is provided with rack one (610), install protection shell (9) on locating plate (67), three mounting hole have been seted up to protection shell (9) rear surface equidistance, and is three install three proximity switch (10) in the mounting hole respectively.

5. The in-oven tray inspection device according to claim 4, wherein: the rotating mechanism (62) comprises a rotating tube (623), a first driving plate (621) is arranged at the lower end of the outer surface of the rotating tube (623), a second driving plate (622) is arranged above the outer surface of the rotating tube (623), rollers are arranged at the front ends of the first driving plate (621) and the second driving plate (622), a pulling plate is arranged at the rear end of the second driving plate (622), and through holes are formed in the pulling plate.

6. The in-oven tray inspection device of claim 5, wherein: the pulley is characterized in that a rope (5) is arranged on the pulley I, the pulley component I (64), the pulley component II (65) and the pulley II (68), the front end of the rope (5) is arranged in a through hole on the pulling plate and is connected with the pulling plate, and the rear end of the rope (5) is connected with the balancing weight (69).

7. The in-oven tray inspection device of claim 1, wherein: the transmission mechanism (7) comprises a first rotating pin (72), a second rotating pin and a differential component (71), wherein first tooth cylinders (73) are arranged at the front end and the rear end of the outer surface of the first rotating pin (72), two rotating pins and three rotating pins (78) are respectively arranged at the front end of the outer surface of the second rotating pin, two tooth cylinders (74) are respectively arranged at the rear end of the outer surface of the second rotating pin, a first gear (76) is respectively arranged at the rear end of the outer surface of the first rotating pin, the first tooth cylinders (73) at the rear end of the first rotating pin (72) are in meshed connection with the differential component (71), third tooth cylinders (79) are respectively arranged at the front end of the outer surface of the third rotating pin (78), two gears are respectively arranged at the rear end of the outer surface of the third rotating pin (78), and the third tooth cylinders (79) are respectively connected with two closing mechanisms (8).

8. The in-oven tray inspection device of claim 7, wherein: the rotary pin I (72), the rotary pin II and the rotary pin III (78) are all installed on the oven box body (1) through shaft sleeves, the tooth cylinder I (73) at the front end of the rotary pin I (72) is connected with the tooth cylinder II (74) through the tooth belts I (75), and the gears I (76) are connected with the gears II through the tooth belts II (77).

9. The in-oven tray inspection device of claim 1, wherein: the closing mechanism (8) comprises a closing plate (81) and teeth (83), a second rack (82) is arranged in the middle of the outer side surface of the closing plate (81), two limiting rods are arranged on the upper side and the lower side of the second rack (82), two teeth (83) are arranged, two limiting holes are formed in the teeth (83), the teeth (83) are movably arranged on the limiting rods on the upper side and the lower side of the second rack (82) through the limiting holes respectively, and springs (84) are arranged on the outer side surface of the limiting rods.

10. The in-oven tray inspection device of claim 9, wherein: two sliding blocks are arranged above the inner side surface of the closing plate (81), a sliding groove is formed in the oven body (1), and the sliding blocks are movably arranged in the sliding groove.

Images