CN111673896A - Manufacturing system and manufacturing method of perforated sand fixing plate and perforated sand fixing plate - Google Patents

Abstract

The invention discloses a manufacturing system and a manufacturing method of a sand fixing plate with holes and the sand fixing plate with holes, wherein the system comprises a die and manufacturing equipment; the mold comprises a bottom plate and a mold frame which can be arranged on the bottom plate, an accommodating cavity is formed between the mold frame and the bottom plate, and a plurality of blind holes are arranged on the bottom plate in the accommodating cavity at intervals; the manufacturing equipment comprises a conveying belt, and a feeding device and an extruding device which are arranged above the conveying belt at intervals and are sequentially arranged along the conveying direction; the transmission band is used for bearing the mould and transmits, and the pan feeding device is used for filling the material to the holding intracavity of mould, and extrusion device includes at least one relative and liftable stripper plate and the perpendicular a plurality of screw rods of locating one side relative with the transmission band of stripper plate with the relative of transmission band, and extrusion device is used for the material of extrusion holding intracavity, and the screw rod passes in the material inserts the blind hole that corresponds. The invention realizes the mechanized manufacture of the sand fixing plate with holes, and the through holes of the sand fixing plate are formed at one time in the manufacturing process, thereby greatly improving the manufacturing efficiency.

Description

Manufacturing system and manufacturing method of perforated sand fixing plate and perforated sand fixing plate

Technical Field

The invention relates to the technical field of sand prevention and fixation, in particular to a manufacturing system and a manufacturing method of a perforated sand fixation plate and the perforated sand fixation plate.

Background

China is one of the most seriously harmed countries by desertification, and the annual loss caused by desertification is as high as billions of yuan. In order to control desertification, China spends huge financial resources and manpower for a long time and also obtains considerable effect. At present, hundreds of desert control technologies and sand control modes are explored, wherein the mature modes are chemical sand fixation and physical sand fixation. The chemical sand fixation means that a sand fixation and water retention solidification layer is formed on the surface of sand which is easy to cause sand damage by using chemical materials and processes, so that the aim of controlling the sand damage is fulfilled. Traditional chemical sand-fixing materials can be divided into: cement, water glass, petroleum products and high-molecular polymer super absorbent resin. The chemical sand fixation has the defects of slightly high cost and difficult large-area popularization, and some sand fixation products have potential influence on the environment. The physical sand fixation mode is that stones, grids or straws and the like are arranged on the surface of the flowing sand layer in a grid form to form a wind-shield wall so as to reduce wind erosion and have the function of intercepting rainwater, and the physical sand fixation mode has certain effect and low cost and is popularized in a large area. The sand fixing plate is an effective physical sand fixing mode for preventing and controlling sand damage, but most of the sand fixing plates are manufactured manually at present, and holes of the sand fixing plates are usually formed by manually and specially setting steps, so that the whole manufacturing efficiency is low, and certain obstruction is formed on large-scale popularization of physical sand fixing.

Disclosure of Invention

In order to solve the problems, the invention provides a manufacturing system and a manufacturing method of a perforated sand fixing plate and the perforated sand fixing plate, so that the mechanical manufacturing of the perforated sand fixing plate is realized, the through holes of the sand fixing plate are formed at one time in the manufacturing process, and the manufacturing efficiency is greatly improved.

The specific technical scheme provided by the invention is as follows: a manufacturing system of a perforated sand fixing plate comprises a mold and manufacturing equipment; wherein,

the die comprises a bottom plate and a die frame which can be arranged on the bottom plate, an accommodating cavity is formed between the die frame and the bottom plate, and a plurality of blind holes are formed in the bottom plate in the accommodating cavity at intervals;

the manufacturing equipment comprises a conveying belt, and a feeding device and an extruding device which are arranged above the conveying belt at intervals and are sequentially arranged along the conveying direction;

the transmission band is used for bearing the weight of the mould is transmitted, the pan feeding device be used for to the holding intracavity filling material of mould, extrusion device include at least one with the relative and liftable stripper plate of transmission band and locate perpendicularly the stripper plate with a plurality of screw rods of one side that the transmission band is relative, extrusion device is used for the extrusion the material of holding intracavity to in the extrusion process, it is a plurality of the screw rod is with a plurality of the blind hole one-to-one, the screw rod passes the material inserts in the blind hole.

Preferably, the preparation equipment still includes the sprinkler that is used for to the holding intracavity of mould sprays the mold oil, sprinkler interval is located the transmission band top is located pan feeding device upper reaches, sprinkler include the batch oil tank and connect in the oil-out of batch oil tank bottom.

Preferably, the preparation equipment is still including being used for demolising the shedder of mould frame, shedder is located extrusion device's low reaches, shedder is including arranging in the liftable fixture of transmission band both sides, liftable fixture is used for the centre gripping the bottom plate is raised the mould makes it break away from the transmission band.

Preferably, the system further comprises a mold conveying device arranged upstream of the manufacturing device, wherein the mold conveying device comprises a first lifting mechanism capable of bearing the molds and a first transfer mechanism used for transferring the molds to the conveying belt.

Preferably, the system further comprises a die removing device arranged at the downstream of the manufacturing device, and the die removing device comprises a second lifting mechanism capable of bearing the die and a second transferring mechanism used for transferring the die on the conveying belt to the second lifting mechanism.

Preferably, the diameter of the screw is smaller than the diameter of the blind hole.

Preferably, the mold further comprises a scale table connected to at least two inner sidewalls of the mold frame, and a height of the frame body of the mold frame exceeds a height of the scale table.

Preferably, the height of the screw is greater than the height of the scale table and less than the sum of the heights of the scale table and the blind hole.

The other specific technical scheme provided by the invention is as follows: a manufacturing method of a perforated sand fixing plate is based on the manufacturing system of the perforated sand fixing plate, and comprises the following steps:

placing the mold on a conveying belt for conveying;

when the accommodating cavity conveyed to the mold is opposite to the feeding device, filling materials into the accommodating cavity;

when the accommodating cavity transmitted to the die is opposite to the extrusion device and the plurality of screw rods are opposite to the plurality of blind holes one by one, the extrusion device is descended to enable the extrusion plate to extrude the material and enable the screw rods to penetrate through the material and be inserted into the blind holes, and after extrusion is completed, the extrusion device is lifted to be separated from the die.

The invention provides another specific technical scheme as follows: a perforated sand fixing plate is manufactured based on the manufacturing system of the perforated sand fixing plate.

Compared with the prior art, the manufacturing system and the manufacturing method of the perforated sand fixing plate and the perforated sand fixing plate provided by the invention have the advantages that the mechanical manufacturing of the perforated sand fixing plate is realized, the through holes of the sand fixing plate can be formed simultaneously in the manufacturing process, other operation steps are not required to be specially arranged, the manufacturing efficiency of the perforated sand fixing plate is greatly improved, the time and the labor are saved, and the large-area popularization of physical sand fixing is facilitated.

Drawings

FIG. 1 is a schematic structural diagram of a system for manufacturing a sand fixing plate with holes according to the present invention;

FIG. 2 is a schematic structural diagram of a mold in the system for manufacturing a sand fixing plate with holes according to the present invention;

FIG. 3 is a schematic structural diagram of a bottom plate of a mold in the manufacturing system of the sand fixing plate with holes of the present invention;

FIG. 4 is a schematic side view of a bottom plate of a mold in the system for manufacturing a sand fixing plate with holes of the present invention;

FIG. 5 is a schematic view of an extrusion mold of an extrusion device in the system for manufacturing a sand fixing plate with holes according to the present invention;

FIG. 6 is a schematic view of an embodiment of a first transporting mechanism in the manufacturing system of the perforated sand fixing plate according to the present invention;

FIG. 7 is a schematic view of another embodiment of the first transporting mechanism in the manufacturing system of the perforated sand fixing plate according to the present invention;

FIG. 8 is a schematic view of an embodiment of a second transfer mechanism in the system for manufacturing a sand fixing plate with holes according to the present invention;

FIG. 9 is a flow chart of the method for manufacturing the sand-fixing plate with holes of the present invention.

Detailed Description

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the specific embodiments set forth herein. Rather, these embodiments are provided to explain the principles of the invention and its practical application to thereby enable others skilled in the art to understand the invention for various embodiments and with various modifications as are suited to the particular use contemplated.

Example 1

Fig. 1 is a schematic structural diagram of a manufacturing system of a perforated sand fixing plate according to the present invention.

Referring to fig. 1, the system for manufacturing a perforated sand fixing plate according to the present invention includes a mold 40, a manufacturing apparatus 20, a mold feeding apparatus 10 and a mold removing apparatus 30 respectively disposed at the upstream and downstream of the manufacturing apparatus 20. The mold sending device 10 transfers the mold 40 to the manufacturing device 20, the manufacturing device 20 forms the sand fixing plate blank body M with the holes in the mold 40, and then the mold 40 is transferred from the manufacturing device 20 to the mold removing device 30 and then is further cured, so that the manufacturing of the sand fixing plate with the holes is completed.

Specifically, as shown in fig. 1 to 4, the mold 40 includes a bottom plate 41 and a mold frame 42 that can be placed on the bottom plate 41, an accommodating cavity for forming a sand fixing plate with holes is formed between the mold frame 42 and the bottom plate 41, and a plurality of blind holes 411 are spaced on the bottom plate 41 in the accommodating cavity, as shown in fig. 4, the height of the blind holes 411 is h 4. The number of the blind holes 411 can be determined according to the number of the holes of the sand fixing plate with holes, which is required to be formed, preferably, the blind holes 411 are arranged on the bottom plate 41 at intervals in multiple rows, and the blind holes 411 between adjacent rows are arranged in a staggered manner, so that the strength of the sand fixing plate can be ensured, and meanwhile, through holes are arranged as much as possible, so that the filling of materials can be saved, and the sand fixing cost is saved. The shape of the mold frame 42 can be specifically set according to the shape of the perforated sand fixing plate to be formed, so that the shape of the accommodating cavity formed between the mold frame and the bottom plate 41 is the same as the shape of the sand fixing plate to be formed.

Further, in order to manufacture a sand fixing plate having a uniform thickness, as shown in fig. 2 and 5, the mold 40 further includes a scale base 43 connected to at least two inner walls of the mold frame 42, and a frame height h1 of the mold frame 42 exceeds a height h2 of the scale base 43. A step surface is formed between the die frame 42 and the scale table 43, and when the extrusion device 23 extrudes, the extrusion plate 231 of the extrusion device 23 is in contact with the step surface and extruded, so that the perforated sand-fixing plate with the same thickness can be formed.

Referring to fig. 1, the mold feeding apparatus 10 is used to carry a mold 40 and transfer the mold 40 to a transfer belt L of the manufacturing apparatus 20. Specifically, the die-feeding apparatus 10 includes a first lifting mechanism 11 and a first transfer mechanism 12. The first lifting mechanism 11 is provided so that a worker can place the mold 40 at a lower position, which saves labor, and when the first lifting mechanism 11 lifts the loaded mold 40 to make the bottom surface of the bottom plate 41 of the mold 40 flush with the conveyor belt L, the first transfer mechanism 12 contacts the bottom plate 41 of the mold 40 to transfer the mold 40 onto the conveyor belt L of the manufacturing apparatus 20.

As an embodiment, referring to fig. 6, the first transfer mechanism 12 includes two first robot arms 121, the two first robot arms 121 are respectively located on two sides of the first lifting mechanism 11 along a direction perpendicular to the conveying direction and are both connected to the first lifting mechanism 11, the two first robot arms 121 grip two sides of the bottom plate 41 to clamp and transfer the mold 40 onto the conveying belt L, and the conveying direction is a direction perpendicular to the paper surface in fig. 6.

As another embodiment, referring to fig. 7, the first transfer mechanism 12 includes a telescopic push rod 122, and the telescopic push rod 122 is located on a side of the first lifting mechanism 11 away from the conveying direction and is connected to the first lifting mechanism 11. As shown in fig. 7, if the conveying direction is rightward, the telescopic push rod 122 is connected to the left side of the first lifting mechanism 11, the left telescopic push rod 122 can extend to abut against the bottom plate 41, and then the telescopic push rod 122 is pushed out rightward, so that the bottom plate 41 can be pushed onto the conveying belt L.

The above-mentioned mold feeding device 10 can be automatically controlled, that is, after the first lifting mechanism 11 reaches a predetermined height, the first transfer mechanism 12 is started to perform gripping transfer or pushing transfer.

With continued reference to fig. 1, the manufacturing apparatus 20 includes a conveyor L, a spraying device 21, a feeding device 22 and an extruding device 23, which are disposed above the conveyor L at intervals and arranged in sequence along a conveying path, and a demolding device 24 disposed downstream of the extruding device 23.

The spraying device 21 is used for spraying demolding oil into the accommodating cavity of the mold 40 so as to facilitate quick mold removal. Specifically, sprinkler 21 includes oil storage tank 211 and connects in oil-out 212 of oil storage tank 211 bottom, and wherein, oil-out 212 is the hopper form that falls, and this hopper form that falls sets up makes the more extensive even drawing of patterns oil that sprays to the holding intracavity.

The feeding device 22 is used for filling the accommodating cavity of the mold 40 with a material for making a sand fixing plate, and it can be understood that if the spraying device 21 is arranged upstream of the feeding device, the accommodating cavity at this time is an accommodating cavity which is already sprayed with the mold oil. Specifically, the feeding device 22 includes a storage box 221 and a discharge port 222 connected to the bottom of the storage box 221, wherein the discharge port 222 is funnel-shaped, and the funnel-shaped material can be more accurately put into and filled into the accommodating cavity without scattering outside the accommodating cavity, thereby causing material waste.

Preferably, the filling material mentioned in the present invention is preferably magnesium cement mortar, and the magnesium cement mortar is prepared by the following steps: firstly, magnesium chloride (MgCl2) is dissolved in water to obtain a magnesium chloride solution with the concentration of 20-30 Be degrees (Baume degree). Then mixing the active magnesium oxide (MgO), the sand or soil in the desertification control place and the magnesium chloride solution according to the mass ratio of 1 (5-15) to (5-15), uniformly mixing in a stirrer, and injecting into a storage tank 221 of a feeding device 22 in advance. The active magnesium oxide (MgO) is one or a combination of light-burned magnesia powder, caustic dolomite powder or other raw materials capable of obtaining an active MgO ingredient, and the active content of the active magnesium oxide (MgO) is 15-95 percent. When the mortar is mixed, fibers can be added as reinforcing materials, and the fibers can be plant fibers or inorganic fibers such as glass fibers.

The extruding device 23 is used for extruding the materials filled in the containing cavity and tamping the materials. Specifically, as shown in fig. 1 and fig. 5, the extruding device 23 at least includes an extruding plate 231 opposite to the transmission belt L and capable of ascending and descending, and a plurality of screws 232 vertically arranged on one side of the extruding plate 231 opposite to the transmission belt L, the extruding device 23 is used for extruding the material in the accommodating cavity, and in the extruding process, the plurality of screws are one-to-one opposite to the plurality of blind holes, and the screws 232 penetrate through the material and are inserted into the blind holes 411. Because the screws 232 need to correspond to the blind holes 411 one by one, the number and arrangement of the screws 232 are determined according to the number, arrangement and cross-sectional shape of the blind holes 411 on the bottom plate 41.

Preferably, referring to fig. 5, in order to facilitate the screw 232 to smoothly enter the blind hole 411 without colliding against the surface of the bottom plate 41, the diameter r1 of the screw 232 is smaller than the diameter r2 of the blind hole 411. Further, in order to tamp the material and obtain a sand fixing plate with a uniform thickness, the height h3 of the screw 232 is greater than the height h2 of the scale platform 43 and less than the sum of the heights of the scale platform 43 and the blind hole 411, i.e., h2 < h3 < h2+ h4, and the arrangement can also enable the screw 232 to completely penetrate through the material to form a through hole on the sand fixing plate.

In order to further realize the automatic lifting control, as shown in fig. 1 and 5, the pressing device 23 further includes a first control device 234, a pressing rod 233 connected to the bottom of the first control device 234 and being retractable, and a pressing plate 231 is vertically connected to the end of the pressing rod 232. It can be appreciated that the shape of the pressing plate 233 matches the shape of the formed receiving cavity. The first control device 234 controls the extrusion rod 233 to reciprocate, thereby lifting and lowering the extrusion plate 231.

Illustratively, referring to FIG. 1, the demolding device 24 is used to remove, i.e., demold, the mold frame 42. The demolding device 24 includes a liftable clamping mechanism 241 disposed on two sides of the conveying belt L and a second control device 242 connected with the liftable clamping mechanism 241, the liftable clamping mechanism 241 clamps the bottom plate 41 to lift the mold 40 off the conveying belt L, at this time, manual demolding is performed by workers located on the side portion of the conveying belt L, after manual demolition is completed, the liftable clamping mechanism 241 descends and falls the mold 40 on the conveying belt L again, and the mold 40 which has completed demolding continues to be conveyed along with the conveying belt L.

Referring to fig. 1, the demolding apparatus 30 is used to transfer the demolded molds 40 off the conveyor L, at which point the perforated sand stabilization mat body M has been formed on the bottom plate 41. Specifically, the mold removing apparatus 30 includes a second lifting mechanism 31 and a second transfer mechanism 32, and the second transfer mechanism 32 is configured to contact the bottom plate 41 to transfer the mold 40 with the mold frame 42 removed onto the second lifting mechanism 31.

As an embodiment, referring to fig. 8, the second transfer mechanism 32 includes two second mechanical arms 321, the two second mechanical arms 321 are respectively located on two sides of the second lifting mechanism 31 along a direction perpendicular to the conveying direction and are both connected to the second lifting mechanism 31, the two mechanical claws of the two second mechanical arms 321 grasp two sides of the bottom plate 41 to clamp and transfer the mold 40 to the second lifting mechanism 31, at this time, the sand fixing plate blank M with holes is formed on the bottom plate 41, the sand fixing plate blank M with holes is formed after being solidified, and the conveying direction is a direction perpendicular to the paper surface in fig. 8.

Preferably, referring to fig. 1, the system for manufacturing the sand fixing plate with holes of the present invention further comprises a maintenance device 50, wherein the maintenance device 50 comprises a maintenance cavity, the sand fixing plate blank formed on the bottom plate 41 can be placed in the maintenance cavity for maintenance, under normal conditions, the demolded sand fixing plate can be maintained at a temperature of 0-30 ℃ for 2-7 days to perform sand prevention construction, and preferably, the maintenance is performed for 3 days.

Example 2

Referring to fig. 9, the present invention further provides a method for manufacturing a perforated sand fixing plate, which is based on the system for manufacturing a perforated sand fixing plate according to embodiment 1, specifically, the method includes:

and S1, placing the die 40 on a conveying belt L for conveying. If the system comprises the mold conveying device 10, the first lifting mechanism 11 of the mold conveying device 10 is lowered to a preset height, a worker places the mold 40 on the first lifting mechanism 11, then the height of the first lifting mechanism 11 is raised, when the bottom surface of the bottom plate 41 of the mold 40 is flush with the surface of the conveying belt L, the first transfer mechanism 11 transfers the mold 40 onto the conveying belt L, and the conveying belt L carries the mold 40 for conveying.

And S2, when the accommodating cavity transmitted to the mold 40 is opposite to the material feeding device 22, starting the material feeding device 22 to fill the material into the accommodating cavity.

S3, when the accommodating cavity transferred to the mold 40 is opposite to the extruding device 23 and the plurality of screws 232 are opposite to the plurality of blind holes 411, the extruding device 23 is lowered to extrude the material by the extruding plate 231 and insert the screws 232 into the blind holes 411 through the material, thereby completing the extrusion, and the extruding device 23 is lifted to be separated from the mold 40.

Further, if the spraying device 21 is included in the above system, the method further includes, before step S2: s2', when the receiving cavity transferred to the mold 40 is opposite to the spraying device 21, the spraying device 21 is started to spray the mold oil into the receiving cavity of the mold 40.

If the demolding device 24 is included in the above system, the method further includes, after step S3: s4, when the mold 40 is conveyed to the position between the lifting clamping mechanisms 241 on the two sides, the lifting clamping mechanisms 241 clamp the bottom plate 41 to lift the mold 40 to be separated from the conveying belt L, at the moment, workers on the side of the conveying belt L carry out manual mold removal, after the manual mold removal is completed, the lifting clamping mechanisms 241 descend and drop the mold 40 on the conveying belt L again, and the mold 40 which is subjected to mold removal is continuously conveyed along with the conveying belt L.

If the system includes the module removing device 30, the method further includes the steps of: s5, when the mold 40 is transported to the end of the conveyor L, the second transfer mechanism 32 of the mold removing device 30 contacts the bottom plate 41 to transfer the mold 40 with the mold frame 42 removed onto the second lifting mechanism 31, thereby completing the mold removal.

If the system comprises the maintenance device 50, the method further comprises the following steps: and S6, placing the die 40 after die removal into a curing cavity of a curing device 50 for centralized curing.

Example 3

The invention also provides a sand fixing plate with holes, which is manufactured based on the manufacturing system of the sand fixing plate with holes in the embodiment 1.

According to the manufacturing system and the manufacturing method of the perforated sand fixing plate and the perforated sand fixing plate, the mechanical manufacturing of the perforated sand fixing plate is realized, the through holes of the sand fixing plate can be formed simultaneously in the manufacturing process, other special operation steps are not needed, the manufacturing efficiency of the perforated sand fixing plate is greatly improved, time and labor are saved, and the large-area popularization of physical sand fixing is facilitated.

The foregoing is directed to embodiments of the present application and it is noted that numerous modifications and adaptations may be made by those skilled in the art without departing from the principles of the present application and are intended to be within the scope of the present application.

Claims (10)

1. A manufacturing system of a perforated sand fixing plate is characterized by comprising a mold and manufacturing equipment; wherein,

the die comprises a bottom plate and a die frame which can be arranged on the bottom plate, an accommodating cavity is formed between the die frame and the bottom plate, and a plurality of blind holes are formed in the bottom plate in the accommodating cavity at intervals;

the manufacturing equipment comprises a conveying belt, and a feeding device and an extruding device which are arranged above the conveying belt at intervals and are sequentially arranged along the conveying direction;

the transmission band is used for bearing the weight of the mould is transmitted, the pan feeding device be used for to the holding intracavity filling material of mould, extrusion device include at least one with the relative and liftable stripper plate of transmission band and locate perpendicularly the stripper plate with a plurality of screw rods of one side that the transmission band is relative, extrusion device is used for the extrusion the material of holding intracavity to in the extrusion process, it is a plurality of the screw rod is with a plurality of the blind hole one-to-one, the screw rod passes the material inserts in the blind hole.

2. The system for manufacturing the sand fixing plate with the hole according to claim 1, wherein the manufacturing equipment further comprises a spraying device for spraying mold oil into the accommodating cavity of the mold, the spraying device is arranged above the conveying belt at intervals and located at the upstream of the feeding device, and the spraying device comprises an oil storage tank and an oil outlet connected to the bottom of the oil storage tank.

3. The manufacturing system of the sand fixing plate with the hole as claimed in claim 1, wherein the manufacturing equipment further comprises a demoulding device for dismantling the mould frame, the demoulding device is located at the downstream of the extrusion device, the demoulding device comprises lifting clamping mechanisms arranged at two sides of the conveying belt, and the lifting clamping mechanisms are used for clamping the bottom plate to lift the mould to separate from the conveying belt.

4. The system for manufacturing the perforated sand fixing plate as claimed in claim 1, further comprising a mold conveying device arranged upstream of the manufacturing device, wherein the mold conveying device comprises a first lifting mechanism capable of carrying the molds and a first transfer mechanism for transferring the molds onto the conveyor belt.

5. The system for manufacturing the perforated sand fixing plate as claimed in claim 1, further comprising a mold removing device arranged at the downstream of the manufacturing device, wherein the mold removing device comprises a second lifting mechanism capable of carrying the molds and a second transferring mechanism for transferring the molds on the conveying belt to the second lifting mechanism.

6. A system for making a sand reinforcing plate with holes according to any one of claims 1 to 5, wherein the diameter of the screw is smaller than the diameter of the blind hole.

7. The system for manufacturing the sand fixing plate with the hole according to any one of claims 1 to 5, wherein the mold further comprises a scale table connected to at least two inner side walls of the mold frame, and the height of the frame body of the mold frame exceeds the height of the scale table.

8. The system for making a sand fixing plate with holes as claimed in claim 7, wherein the height of the screw is greater than the height of the scale table and less than the sum of the heights of the scale table and the blind hole.

9. A method for manufacturing a perforated sand fixing plate, which is based on the system for manufacturing the perforated sand fixing plate according to any one of claims 1 to 8, and comprises the following steps:

placing the mold on a conveying belt for conveying;

when the accommodating cavity conveyed to the mold is opposite to the feeding device, filling materials into the accommodating cavity;

when the accommodating cavity transmitted to the die is opposite to the extrusion device and the plurality of screw rods are opposite to the plurality of blind holes one by one, the extrusion device is descended to enable the extrusion plate to extrude the material and enable the screw rods to penetrate through the material and be inserted into the blind holes, and after extrusion is completed, the extrusion device is lifted to be separated from the die.

10. A perforated sand fixing plate, which is manufactured based on the manufacturing system of the perforated sand fixing plate as claimed in any one of claims 1 to 8.

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