CN114953368B

CN114953368B - Vertical injection mold

Info

Publication number: CN114953368B
Application number: CN202210518398.2A
Authority: CN
Inventors: 许梦晴; 张子龙
Original assignee: Dongguan Shenhui Hardware And Electronic Products Co ltd
Current assignee: Dongguan Shenhui Hardware And Electronic Products Co ltd
Filing date: 2022-05-12
Publication date: 2024-07-12
Anticipated expiration: 2042-05-12

Abstract

The invention relates to the technical field of molds, in particular to a vertical injection mold, which comprises a lower bottom plate, wherein the lower bottom plate is fixedly arranged below a frame, a mold closing cylinder is fixedly arranged on the lower bottom plate, a forming mold is fixedly arranged at the output end of the mold closing cylinder, an upper frame plate is fixedly arranged above the frame, a feeding mold is fixedly arranged on the upper frame plate, a material taking device comprises a material taking plate and a driving assembly connected with the material taking plate, the driving assembly comprises two fixing blocks, the two fixing blocks are respectively and fixedly arranged on the forming mold and the feeding mold, connecting rods are hinged to the two fixing blocks, a material taking rod is fixedly arranged on the connecting blocks, and one end of the material taking rod, which is far away from the connecting blocks, is fixedly connected with the material taking plate. According to the invention, the feeding die is arranged above the injection molding die, the injection molding die can drop after the injection molding die is demoulded, and the injection molding die is taken away by the object taking device, so that the problem that the use cost of manufacturing the injection molding die is increased due to the fact that the injection molding die is taken down manually or by a mechanical arm is solved.

Description

Vertical injection mold

Technical Field

The invention relates to the technical field of molds, in particular to a vertical injection mold.

Background

Injection molding, also known as injection molding, is a method of injection and molding. The injection molding method has the advantages of high production speed and high efficiency, can form parts with complex shapes, and is suitable for the field of molding processing of mass production and products with complex shapes.

In injection molding, can divide into vertical injection molding and horizontal injection molding through putting the position, when vertical injection molding, injection molding is moulded on the feeding mould of below, and the ejector pin in the feeding mould is ejecting drawing of patterns with injection molding after the shaping, after the drawing of patterns, injection molding still remains the feeding mould, needs to take out it through manual work or manipulator, adopts the manual work to take out work efficiency low with injection molding, and the people too close to the mould has certain potential safety hazard, adopts the manipulator to take out it efficiency higher and reduced the potential safety hazard, but can increase the cost of manufacture of injection molding production.

For this purpose, a vertical injection mold is proposed.

Disclosure of Invention

The invention aims to provide a vertical injection mold, which solves the problems in the prior art by arranging a feeding mold above, removing an injection part, falling the injection part, and taking the injection part away by an object taking device.

In order to achieve the above purpose, the present invention provides the following technical solutions:

A vertical injection mold, comprising:

A frame;

The lower bottom plate is fixedly arranged below the frame, a die closing cylinder is fixedly arranged on the lower bottom plate, and a forming die is fixedly arranged on the output end of the die closing cylinder;

the upper frame plate is fixedly arranged above the frame, and a feeding die is fixedly arranged on the upper frame plate;

The object taking device comprises a driving component fixedly arranged on one side of the forming die and one side of the feeding die and an object taking plate fixedly connected with the driving component.

Preferably, the object taking device comprises an object taking plate and a driving assembly connected with the object taking plate.

Preferably, the driving assembly comprises two fixing blocks, the two fixing blocks are respectively and fixedly arranged on the forming die and the feeding die, and the two fixing blocks are hinged with connecting rods; the connecting block, the connecting block is articulated with two connecting rods, fixed mounting gets the thing pole on the connecting block, get the thing pole and keep away from the one end of connecting block and get thing board fixed connection.

Preferably, a baffle is fixedly arranged at one end of the object taking plate far away from the object taking rod;

Preferably, the article taking rod is provided with a rotating device at the joint of the article taking plate, the rotating device comprises an outer cover, a rotating shaft is rotatably arranged on the outer cover, one end of the rotating shaft is fixedly connected with the article taking plate, a gear is fixedly arranged on the rotating shaft, a sliding block is connected in the outer cover in a sliding manner, a rack meshed with the gear is arranged on the sliding block, and a first air inlet and an air outlet are arranged on the outer cover.

Preferably, a piston cylinder is fixedly installed on the feeding die, a piston plate is movably connected in the piston cylinder, a piston rod is fixedly installed on the piston plate, an extrusion plate is fixedly installed at one end, far away from the piston plate, of the piston rod, a spring is connected between the piston cylinder and the piston plate, and the piston cylinder is connected with a first air inlet pipe.

Preferably, the outer cover is provided with a gas leakage port, and the gas leakage port is provided with a pressure valve.

Preferably, the piston cylinder is provided with a second air inlet, and the second air inlet is provided with a one-way valve.

Preferably, the object taking plate is provided with a rubber pad.

Preferably, the object taking device and the piston cylinder are detachably connected with the forming die and the feeding die.

Compared with the prior art, the invention has the beneficial effects that:

1. According to the invention, the feeding die is arranged above the injection molding die, the injection molding die can drop after the injection molding die is demoulded, and the injection molding die is taken away by the object taking device, so that the problem that the use cost of manufacturing the injection molding die is increased due to the fact that the injection molding die is taken down manually or by a mechanical arm is solved.

2. According to the invention, the driving assembly is driven to move through the movement of the forming die, so that the object taking plate can take out the injection molding part, and a power device is not required to be arranged for the driving assembly, so that the problem that the use cost for manufacturing the injection molding part is increased for arranging the power device during object taking is solved.

3. According to the invention, the object taking device and the piston cylinder are detachably connected with the forming die and the feeding die, and can be detached and replaced on a new die when the die is replaced, so that the object taking device and the piston cylinder can be used for multiple times, and the problem of the increase of the manufacturing cost of the die caused by the replacement of the die is solved.

Drawings

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

FIG. 2 is a schematic diagram of the overall structure of the present invention;

FIG. 3 is a partial cross-sectional view of the structure of the present invention;

FIG. 4 is an enlarged partial cross-sectional view of the invention at A in FIG. 2;

Fig. 5 is an enlarged view of a portion of fig. 2B in accordance with the present invention.

In the figure: 1. a frame; 2. a lower base plate; 3. a die closing cylinder; 4. forming a mold; 5. an upper frame plate; 6. a feeding die; 7. a fetching plate; 8. a fixed block; 9. a connecting rod; 10. a connecting block; 11. a fetching rod; 12. a baffle; 13. an outer cover; 14. a rotation shaft; 15. a gear; 16. a slide block; 17. a rack; 18. a first air inlet; 19. an air outlet; 20. a piston cylinder; 21. a piston plate; 22. a piston rod; 23. an extrusion plate; 24. a spring; 25. an air vent; 26. a pressure valve; 27. a second air inlet; 28. a one-way valve; 29. and a rubber pad.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise. Furthermore, the terms "mounted," "connected," "coupled," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1 to 5, the present invention provides a vertical injection mold, which has the following technical scheme:

A vertical injection mold, comprising:

a frame 1;

the lower bottom plate 2 is fixedly arranged below the frame 1, the lower bottom plate 2 is fixedly provided with a die closing cylinder 3, and the output end of the die closing cylinder 3 is fixedly provided with a forming die 4;

The upper frame plate 5 is fixedly arranged above the frame 1, and a feeding die 6 is fixedly arranged on the upper frame plate 5;

And the object taking device is arranged on the forming die 4 and the feeding die 6.

The lower bottom plate 2 is fixedly provided with the die closing cylinder 3, the forming die 4 is fixedly arranged at the output end of the die closing cylinder 3, the feeding die 6 is fixedly arranged on the feeding die 6 above the frame 1, when the die closing cylinder 3 pushes the forming die 4 to move upwards, then the die closing cylinder is completely matched with the feeding die 6, hot melt plastics in a molten state are injected after being matched, then the die closing cylinder 3 is cooled, the forming die 4 is driven to move downwards through shrinkage of the die closing cylinder 3, the forming die 4 and the feeding die 6 are separated, then an injection molding piece in the feeding die 6 is ejected and demoulded through a thimble in the feeding die 6, after the injection molding piece is demoulded, the injection molding piece can fall off, is received and carried away from the position below the feeding die 6 through a material taking device, and can leave the feeding die 6 by means of gravity of the injection molding piece after the demould, and the injection molding piece does not need to be taken down through a manual or a mechanical arm, so that the use cost of manufacturing the injection molding piece is reduced.

As an embodiment of the present invention, referring to fig. 1, the object picking apparatus includes a driving unit fixedly installed at one side of the forming mold 4 and the feeding mold 6, and an object picking plate 7 fixedly connected to the driving unit.

When the forming die 4 moves downwards, the object taking plate 7 moves to the lower part of the feeding die 6 through the driving component, the injection molding piece falls off after demolding, the injection molding piece is received through the object taking plate 7, when the forming die 4 moves upwards, the object taking plate 7 moves out of the position right below the feeding die 6 through the driving component, the injection molding piece is taken out, the object taking device is arranged to move the injection molding piece to the die assembly route of the forming die 4 and the feeding die 6, and the injection molding piece can be taken out without manual work or mechanical hand.

As an embodiment of the present invention, referring to fig. 1, the driving assembly includes two fixing blocks 8, the two fixing blocks 8 are fixedly installed on the forming die 4 and the feeding die 6, and the two fixing blocks 8 are hinged with a connecting rod 9; the connecting block 10, connecting block 10 are articulated with two connecting rods 9, and fixed mounting gets thing pole 11 on the connecting block 10, gets thing pole 11 and gets thing board 7 fixed connection away from the one end of connecting block 10.

The forming die 4 and the feeding die 6 are fixedly provided with fixed blocks 8, the fixed blocks 8 are hinged with connecting rods 9, the two connecting rods 9 are hinged with connecting blocks 10, when the forming die 4 moves downwards, the fixed blocks 8 on the forming die 4 move together, the distance between the two fixed blocks 8 is increased, one end of the connecting rod 9 hinged on the fixed block 8 is driven to increase, one end hinged on the connecting block 10 moves towards the feeding die 6, the connecting block 10 is driven to move towards the feeding die 6, the connecting block 10 is fixedly provided with a fetching rod 11, one end of the fetching rod 11 away from the connecting block 10 is fixedly connected with a fetching plate 7, the connecting block 10 moves towards the feeding die 6, the fetching plate 7 is driven to move together by the fetching rod 11, when the forming die 4 reaches the lowest part, get thing board 7 and lie in under feeding mould 6, drop after the injection molding drawing of patterns, catch the injection molding through getting thing board 7, when moulded die 4 upwards moves, fixed block 8 can move together on moulded die 4, the distance between two fixed blocks 8 reduces, thereby drive connecting rod 9 and articulate the one end on fixed block 8 and be close to each other, and the one end of articulating on connecting block 10 can be moved towards keeping away from feeding mould 6 direction, thereby drive connecting block 10 and remove, take getting thing board 7 under leaving feeding mould 6 through connecting rod 9, set up drive assembly and feeding mould 6, moulded die 4 are connected, the motion through moulded die 4 drives drive assembly motion, realize getting thing board 7 and take out the injection molding, and need not set up power device for drive assembly, reduce the use cost of injection molding preparation.

As an embodiment of the present invention, referring to fig. 1, a baffle 12 is fixedly installed at an end of the take-off plate 7 remote from the take-off lever 11.

When in use, the object taking plate 7 is driven to take an object through the movement of the forming die 4, the forming die 4 is driven by the die clamping cylinder 3, the die clamping cylinder 3 is started faster, the quick acceleration is transmitted to the object taking plate 7 during starting, and due to the inertia effect, the relative displacement between the injection molding piece and the object taking plate 7 can be caused, so that the injection molding piece falls off from the object taking plate 7, the manufacture of the next injection molding piece is influenced by the falling off of the injection molding piece from the object taking plate 7, and the baffle 12 is arranged on the object taking plate 7, so that the injection molding piece can be blocked from falling off by the baffle 12 when the object taking plate 7 moves and the injection molding piece generates relative displacement.

As an embodiment of the present invention, referring to fig. 3, a rotating device is disposed at the connection position between the object taking rod 11 and the object taking plate 7, the rotating device includes a housing 13, a rotating shaft 14 is rotatably mounted on the housing 13, one end of the rotating shaft 14 is fixedly connected with the object taking plate 7, a gear 15 is fixedly mounted on the rotating shaft 14, a sliding block 16 is slidably connected on the housing 13, a rack 17 meshed with the gear 15 is disposed on the sliding block 16, and a first air inlet 18 and an air outlet 19 are disposed on the housing 13.

After the injection molding leaves the die assembly route, through ventilating the air inlet 18, promote the slider 16 to remove, the slider 16 is in the removal in-process, keep away from the inside gas of one end of air inlet 18 and come out from the gas outlet 19, the slider 16 drives through rack 17 and the transmission of gear 15, drive the rotation axis 14 that rotates to install on dustcoat 13 and rotate, get thing board 7 and rotation axis 14 fixed connection, thereby rotate and take place the slope along with rotation of rotation axis 14, make the injection molding drop, can set up conveyer on the injection molding machine, catch the injection molding that drops and send it away, through setting up rotary device between getting thing pole 11 and getting thing board 7, do not need manual work and manipulator can take off the injection molding from getting thing board 7, the production forming assembly line of injection molding also be convenient for.

As an embodiment of the present invention, referring to fig. 4, a piston cylinder 20 is fixedly installed on a feeding mold 6, a piston cylinder 20 is fixedly installed on the feeding mold 6, a piston plate 21 is movably connected in the piston cylinder 20, a piston rod 22 is fixedly installed on the piston plate 21, an extrusion plate 23 is fixedly installed at one end of the piston rod 22 away from the piston plate 21, a spring 24 is connected between the piston cylinder 20 and the piston plate 21, and the piston cylinder 20 is connected with a first air inlet 18 air pipe.

The forming die 4 is pressed with the feeding die 6 after moving upwards, the piston cylinder 20 is arranged on the feeding die 6, the piston plate 21 is arranged in the piston cylinder 20, in the pressing process of the forming die 4 and the feeding die 6, the forming die 4 pushes the extruding plate 23 on the piston rod 22 to move together, the piston plate 21 is pushed by the piston rod 22, the piston cylinder 20 is connected with the first air inlet 18 through the air pipe, air in the piston cylinder 20 enters the rotating device through the air pipe under the pushing of the piston plate 21, the rotating shaft 14 is driven to rotate, the object taking plate 7 tilts to pour an injection molding piece, the piston plate 21 can be driven to reset through the spring 24, the sliding block 16 is brought back to the initial position for keeping the air pressure in the piston rod 22 unchanged in the resetting process of the piston rod 22, so that the object taking plate 7 returns to the initial position, and the piston cylinder 20 is pushed by the movement of the forming die 4 to supply air for the rotating cylinder, and the use cost of equipment can be reduced.

As an embodiment of the present invention, referring to fig. 3, the cover 13 is provided with a gas release port 25, and the gas release port 25 is provided with a pressure valve 26.

The air release opening 25 with the pressure valve 26 is arranged on the outer cover 13, so that the piston rod 22 is prevented from being compressed when the stroke of the sliding block 16 is finished, and the piston rod 22 is prevented from being damaged due to the fact that the air pressure in the piston cylinder 20 is too high.

As an embodiment of the present invention, referring to fig. 4, the piston cylinder 20 is provided with a No. two air inlet 27, and the No. two air inlet 27 is provided with a check valve 28.

By providing the second air inlet 27 with the check valve 28 on the piston cylinder 20, when the piston cylinder 20 sucks the sliding block 16 to return to the initial position, the piston plate 21 continues to move to reduce the air pressure, the rotating device and the piston plate 21 are not enough to form a complete sealing state, and in order to ensure that the sliding block 16 can move to the maximum displacement next time, air is introduced through the second air inlet 27, so that the air quantity in the piston cylinder 20 is ensured to be sufficient.

As an embodiment of the present invention, referring to fig. 5, a rubber pad 29 is provided on the take-out plate 7.

By arranging the rubber pad 29 on the object taking plate 7, the vibration absorbing effect can be achieved when the paper-plastic part falls on the object taking plate 7, and the injection-plastic part can be prevented from bouncing up and falling from the object taking plate 7 when falling.

As an embodiment of the present invention, referring to fig. 1, the material taking device and the piston cylinder 20 are detachably connected to the molding die 4 and the feeding die 6.

Because the replacement frequency of the mould is higher, the object taking device and the piston cylinder 20 can be used for multiple times by detachably connecting the object taking device and the piston cylinder 20 with the forming mould 4 and the feeding mould 6, so that the manufacturing cost of the mould is reduced.

Working principle: when in use, the mold closing cylinder 3 pushes the forming mold 4 to move upwards, then is completely matched with the feeding mold 6, hot-melt plastic is injected after the matching, then cooling is carried out, the forming mold 4 is driven to move downwards by the shrinkage of the mold closing cylinder 3, the separation of the forming mold 4 and the feeding mold 6 is realized, then the injection molding piece in the feeding mold 6 is ejected and demolded by the ejector pin in the feeding mold 6, the injection molding piece can fall after the injection molding piece is demolded, the forming mold 4 and the feeding mold 6 are fixedly provided with the fixing blocks 8, the fixing blocks 8 are hinged with the connecting rods 9, the two connecting rods 9 are hinged with the connecting blocks 10, when the forming mold 4 moves downwards, the fixing blocks 8 on the forming mold 4 move together, The distance between the two fixed blocks 8 is increased, thereby driving the distance between one end of the connecting rod 9 hinged on the fixed block 8 to be increased, and one end hinged on the connecting block 10 is moved towards the feeding die 6, thereby driving the connecting block 10 to move towards the feeding die 6, the object taking rod 11 is fixedly arranged on the connecting block 10, one end of the object taking rod 11 far away from the connecting block 10 is fixedly connected with the object taking plate 7, the connecting block 10 moves towards the feeding die 6, the object taking plate 7 is driven to move together by the object taking rod 11, when the forming die 4 reaches the lowest part, the object taking plate 7 is positioned under the feeding die 6, the injection molding piece falls off after being demolded, the injection molding piece is received by the object taking plate 7, When the forming die 4 moves upwards, the fixing blocks 8 on the forming die 4 move together, the distance between the two fixing blocks 8 is reduced, so that one end of the connecting rod 9 hinged on the fixing blocks 8 is driven to approach each other, one end hinged on the connecting block 10 moves towards the direction away from the feeding die 6, the connecting block 10 is driven to move, the object taking plate 7 is taken away from the position right below the feeding die 6 through the connecting rod 9, after an injection molding piece leaves a die closing route, the injection molding piece is ventilated through a first air inlet 18, the sliding block 16 is pushed to move, the sliding block 16 drives the rotating shaft 14 rotatably mounted on the outer cover 13 to rotate through the transmission of the rack 17 and the gear 15, the object taking plate 7 is fixedly connected with the rotating shaft 14, So that the injection molding piece falls down by rotating along with the rotation of the rotating shaft 14, a conveying device can be arranged on the injection molding machine to catch the falling injection molding piece and convey the falling injection molding piece away, the forming die 4 is pressed with the feeding die 6 after moving upwards, a piston cylinder 20 is arranged on the feeding die 6, a piston plate 21 is arranged in the piston cylinder 20, in the pressing process of the forming die 4 and the feeding die 6, the forming die 4 pushes a pressing plate 23 on a piston rod 22 to move together, the piston plate 21 is pushed by the piston rod 22, the piston cylinder 20 is connected with a first air inlet 18 through an air pipe, under the pushing of the piston plate 21, the air in the piston cylinder 20 enters the rotating device through the air pipe, The rotary shaft 14 is driven to rotate, the object taking plate 7 is inclined to topple over an injection molding piece, the piston plate 21 can be driven to reset through the spring 24, the sliding block 16 is brought back to the initial position in order to keep the air pressure in the piston rod 22 unchanged in the resetting process of the piston rod 22, so that the object taking plate 7 is returned to the initial position, the air release opening 25 with the pressure valve 26 is arranged on the outer cover 13, the situation that the piston rod 22 is still compressed when the sliding block 16 runs away, the air pressure in the piston cylinder 20 is too high to damage the piston rod 22 can be avoided, the second air inlet 27 with the one-way valve 28 is arranged on the piston cylinder 20, when the piston cylinder 20 sucks the sliding block 16 to return to the initial position, the piston plate 21 continues to move to reduce the air pressure, the rotating device and the piston plate 21 are not enough to form a complete sealing state, in order to ensure that the sliding block 16 can move to the maximum displacement next time, air is fed through the air inlet 27, the air quantity in the piston cylinder 20 is ensured to be sufficient, the forming die 4 is driven by the die closing air cylinder 3, the die closing air cylinder 3 is started faster, the relative displacement between the injection molding piece and the taking plate 7 can be caused due to the inertia effect, the injection molding piece falls from the taking plate 7, the manufacturing of the next injection molding piece is influenced to avoid falling of the injection molding piece from the taking plate 7, the baffle 12 is arranged on the taking plate 7, When getting thing board 7 and moving and the injection molding and producing relative displacement, baffle 12 can block the injection molding and prevent that it from dropping, set up rubber pad 29 on getting thing board 7, when paper mould the piece and drop on getting thing board 7, can play the cushioning effect, can prevent that the injection molding from bouncing and falling from getting thing board 7 when dropping, because the change frequency of mould is higher, can carry out repetitious usage through getting thing device, piston cylinder 20 and moulded die 4, feeding mould 6 detachable connection with getting thing device and piston cylinder 20 to reduce the cost of manufacture of mould.

The electric elements are all connected with an external main controller and 220V mains supply through a transformer, and the main controller can be conventional known equipment for controlling a computer and the like.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A vertical injection mold, comprising: a frame (1); the lower bottom plate (2), the lower bottom plate (2) is fixedly arranged below the frame (1), the lower bottom plate (2) is fixedly provided with a die closing cylinder (3), and the output end of the die closing cylinder (3) is fixedly provided with a forming die (4); the feeding device comprises an upper frame plate (5), wherein the upper frame plate (5) is fixedly arranged above a frame (1), and a feeding die (6) is fixedly arranged on the upper frame plate (5); the material taking device is arranged on the forming die (4) and the feeding die (6);

Comprises a driving component fixedly arranged at one side of a forming die (4) and a feeding die (6) and a fetching plate (7) fixedly connected with the driving component;

the driving assembly comprises two fixing blocks (8), the two fixing blocks (8) are respectively and fixedly arranged on the forming die (4) and the feeding die (6), and connecting rods (9) are hinged on the two fixing blocks (8); the connecting block (10), the connecting block (10) is hinged with the two connecting rods (9), the connecting block (10) is fixedly provided with a fetching rod (11), and one end of the fetching rod (11) far away from the connecting block (10) is fixedly connected with the fetching plate (7);

a baffle (12) is fixedly arranged at one end, far away from the object taking rod (11), of the object taking plate (7);

The rotary device is arranged at the joint of the object taking rod (11) and the object taking plate (7), and comprises an outer cover (13), a rotary shaft (14) is rotatably arranged on the outer cover (13), one end of the rotary shaft (14) is fixedly connected with the object taking plate (7), a gear (15) is fixedly arranged on the rotary shaft (14), a sliding block (16) is connected in the outer cover (13) in a sliding manner, a rack (17) meshed with the gear (15) is arranged on the sliding block (16), and a first air inlet (18) and an air outlet (19) are arranged on the outer cover (13);

A piston cylinder (20) is fixedly arranged on the feeding die (6), a piston plate (21) is movably connected in the piston cylinder (20), a piston rod (22) is fixedly arranged on the piston plate (21), an extrusion plate (23) is fixedly arranged at one end, far away from the piston plate (21), of the piston rod (22), a spring (24) is connected between the piston cylinder (20) and the piston plate (21), and the piston cylinder (20) is connected with a first air inlet (18) through an air pipe; the outer cover (13) is provided with a gas leakage port (25), and the gas leakage port (25) is provided with a pressure valve (26); a second air inlet (27) is formed in the piston cylinder (20), and a one-way valve (28) is arranged on the second air inlet (27);

A rubber pad (29) is arranged on the object taking plate (7); the object taking device and the piston cylinder (20) are detachably connected with the forming die (4) and the feeding die (6).