CN114393774A

CN114393774A - Punching device for metal mesh and injection molding equipment

Info

Publication number: CN114393774A
Application number: CN202111652269.4A
Authority: CN
Inventors: 朱晓忠
Original assignee: Ruian Nanjing Electric Ltd By Share Ltd
Current assignee: Ruian Nanjing Electric Ltd By Share Ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-04-26

Abstract

The invention provides a metal mesh punching device and injection molding equipment, which comprise a punching die, wherein the punching die comprises an upper fixing plate, a lower fixing plate, a punch, a push pin, a push plate, a female die and a push-out cylinder; the upper fixing plate and the lower fixing plate are arranged to move up and down relatively, the punch is fixedly arranged on the upper fixing plate, the female die is fixedly arranged on the lower fixing plate, the push pin is fixedly arranged on the push plate and inserted into the punched hole of the punch, and the push cylinder is connected with the push plate. According to the invention, the punching die can be used for punching the metal mesh, then the punched mesh material is pushed out to the specified position of the injection mold, and then the punching die and the injection mold are closed and injection molding is carried out to obtain a final product, the two links are in seamless connection, and the production efficiency is greatly improved.

Description

Punching device for metal mesh and injection molding equipment

Technical Field

The invention belongs to the technical field of vehicle filtering products, and particularly relates to a metal mesh punching device and injection molding equipment.

Background

In the vehicle filtering product, the filtering component mainly comprises a plastic piece and a filter screen. Wherein the filter screen is made by a die cutting machine and then placed in an injection molding machine for injection molding to obtain a final product.

The prior injection molding machine needs other equipment to convey the punched filter screen to the injection molding position on the mold core when in injection molding, so that the whole operation is more complex, linkage is lacked, and the whole production efficiency is not high.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the utility model provides a die-cut device of metal mesh piece and injection moulding equipment can accomplish whole die-cut, the operation of moulding plastics on a equipment, improves production efficiency greatly.

The invention is realized by the following steps: a metal mesh punching device comprises a punching die, wherein the punching die comprises an upper fixing plate, a lower fixing plate, a punch, a push pin, a push plate, a female die and a push-out cylinder; the upper fixing plate and the lower fixing plate are arranged to move up and down relatively, the punch is fixedly arranged on the upper fixing plate, the female die is fixedly arranged on the lower fixing plate, the push pin is fixedly arranged on the push plate and inserted into the punched hole of the punch, and the push cylinder is connected with the push plate.

Further, the punching die further comprises a return spring, and the return spring enables the push plate to have a return tendency.

Furthermore, the device also comprises a feeding clamping and pulling mechanism; the feeding clamping and pulling mechanism is arranged on the lower fixing plate and comprises a fixed clamping plate, a movable clamping plate, a clamping cylinder and a transfer cylinder, and the movable clamping plate and the fixed clamping plate are provided with avoidance holes; the clamping cylinder drives the movable clamping plate and the fixed clamping plate to move up and down, and the transfer cylinder drives the clamping cylinder to move back and forth along the moving direction of the metal mesh cloth.

Furthermore, the clamping cylinder is a finger cylinder, a movable mounting block and a fixed mounting block are respectively mounted at the finger ends of the clamping cylinder, the movable clamping plate is mounted on the movable mounting block, and the fixed clamping plate is mounted on the fixed mounting block.

Furthermore, the clamping cylinders are oppositely arranged on the front side and the rear side of the moving path of the metal mesh cloth.

Furthermore, the movable clamping plate and the fixed clamping plate are both provided with two.

The invention also provides injection molding equipment, which comprises a rack and an injection mold arranged on a base of the rack, wherein the injection mold comprises a mold core and the metal mesh punching device of claim 1; the punching die is arranged on a lifting plate of the frame, and the female die corresponds to the pouring cavity on the die core; the die cutting die can be opened and closed with the injection mould.

Furthermore, a mold closing positioning column is arranged on a template of the injection mold, and a mold closing positioning hole is formed in a lower fixing plate of the punching mold.

Furthermore, the lifting plate of the rack is also provided with a material discharging wheel and a material receiving wheel.

Further, the lifting plate is connected with the base in a sliding mode through a linear guide post.

The invention has the following beneficial effects:

1. according to the invention, the punching die can be used for punching the metal mesh, then the punched mesh material is pushed out to the specified position of the injection mold, and then the punching die and the injection mold are closed and injection molding is carried out to obtain a final product, the two links are in seamless connection, and the production efficiency is greatly improved.

2. According to the invention, the metal mesh cloth is moved through the transfer cylinder and the clamping cylinder, so that a mode of moving the mesh cloth by using a material receiving wheel for traction in the prior art is replaced, and the probability of traction and fracture of the mesh cloth is reduced.

Drawings

FIG. 1 is a perspective view of the structure of the feeding clamping mechanism of the present invention;

FIG. 2 is a perspective view showing the structure of an injection mold according to the present invention;

FIG. 3 is a perspective view of the structure of the die of the present invention;

FIG. 4 is a schematic structural view of an injection molding apparatus of the present invention in an open mold state;

FIG. 5 is a schematic view of the injection molding apparatus of the present invention in a mold closed state.

Detailed Description

The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

As shown in fig. 1 to 5, an injection molding apparatus includes a frame 400, an injection mold 200, and a punching device. The frame 400 comprises a base 401, a lifting plate 402, a linear guide post 406, a die closing cylinder, a discharging wheel 403 and a receiving wheel 404. Four linear guide posts 406 are slidably mounted on the base 401 and are distributed in a rectangular array. The lifting plate 402 is mounted on a linear guide post 406 so as to be able to slide up and down relative to the base 401. The mold closing cylinder drives the lift plate 402 to move, thereby completing the mold opening and closing operation. The discharge wheel 403 and the take-up wheel 404 are mounted on a linear guide post 406 so as to move synchronously with the lifting plate 402. The metal mesh cloth 500 is wound on the discharging wheel 403, and one end of the metal mesh cloth is drawn out and then wound on the material receiving wheel 404, so that automatic feeding and automatic material receiving are realized.

The injection mold 200 is mounted on a base 401, and the injection mold 200 includes a mold core 202, in this example, the mold core 202 has four pouring points, so that four products are processed at a time.

The punching device includes a punching die 100 and a feeding nip-pulling mechanism 300. The punching die 100 is mounted on a lifting plate 402 of the frame 400, and the punching die 100 comprises an upper fixing plate 101, a lower fixing plate 102, a punch 103, a push pin 104, a push plate 105, a female die 107 and a push-out cylinder 108. The upper fixing plate 101 is fixedly mounted on the lifting plate 402, and the lower fixing plate 102 is slidably mounted below the upper fixing plate 101. The push plate 105 is slidably mounted on the upper fixing plate 101, and four push pins 104 are fixedly mounted below the push plate 105, and all move synchronously with the push plate 105. Four punches 103 are fixedly arranged on the upper fixing plate 101, four female dies 107 are fixedly arranged on the lower fixing plate 102, and the punches 103 and the female dies 107 correspond to pouring points on the die core 202 one by one.

The push pins 104 are inserted into the punched holes of the corresponding punches 103, thereby pushing the disc punched out in the punched holes onto the casting point. The push-out cylinder 108 is mounted on the lifting plate 402 and is connected to and drives the push plate 104 to move up and down to complete the push-out operation of the wafer.

After the punching is finished, the push plate 105 needs to be reset, so the punching die 100 further comprises a reset spring 106, one end of the reset spring 106 is abutted against the upper fixing plate 101, and the other end of the reset spring is abutted against the push plate 105. After the mold is opened, the lower fixing plate 102 and the upper fixing plate 101 are restored to the original state, and at this time, the push plate 105 is sprung to be restored by the return spring 106.

The feeding clamping and pulling mechanism 300 is mounted on the die cutting die 100, specifically on the lower fixing plate 102, and the feeding clamping and pulling mechanism 300 includes a fixed clamping plate 301, a movable clamping plate 302, a clamping cylinder 305 and a transfer cylinder 306.

The movable clamping plate 302 and the fixed clamping plate 301 are provided with two, and both are provided with avoidance holes for the punch 103 to pass through so as to complete punching operation. The number of the movable clamping plate 301 and the number of the fixed clamping plate 301 are two, wherein the movable clamping plate 301 is located above the fixed clamping plate 301, and the fixed clamping plate 301 is installed on the lower fixing plate 102. In this embodiment, the movable clamping plate 301 and the fixed clamping plate 301 are in a strip shape, and the length direction thereof is parallel to the conveying direction of the metal mesh cloth 500. The clamping cylinders 305 are disposed at two opposite sides of the moving path of the metal mesh 500. The clamping cylinder 305 is a finger cylinder, the finger ends of the clamping cylinder are respectively provided with a movable mounting block 304 and a fixed mounting block 303, the movable clamping plates 302 are arranged at two ends of the movable mounting block 304, and the fixed clamping plates 301 are arranged at two ends of the fixed mounting block 303. The movable clamp plate 302 and the fixed clamp plate 301 can be separated and combined by the clamp cylinder 305. The transfer cylinder 306 drives the clamping cylinder 305 and the stationary platen 301 to reciprocate along the moving direction of the metal mesh 500. The metal mesh cloth 500 drawn out from the discharging wheel 403 passes through the gap between the fixed clamping plate 301 and the movable clamping plate 302 and then is wound on the receiving wheel 404.

The mold plate 204 of the injection mold 200 is provided with a mold clamping positioning post 203, and the lower fixing plate 102 of the blanking mold 100 is provided with a mold clamping positioning hole.

The working process and principle of the invention are as follows:

as shown in fig. 4, after the metal mesh cloth 500 comes between the movable clamp plate 302 and the fixed clamp plate 301, the lifting plate 402 drives the die 100 to descend under the driving of the clamping cylinder. The lower retaining plate 102 cannot continue to move after it contacts the platen 204 of the injection mold 200, while the upper retaining plate 101 continues to move until the punch 103 contacts the metal mesh 500 and completes the die cut. Subsequently, the push-out cylinder 108 operates to drive the push plate 105 down, so that the push pin 105 pushes the punched disc into the casting point, and then injection molding is performed. As shown in fig. 5, after the injection molding is finished, the mold closing cylinder drives the punching mold 100 and the injection mold 200 to open the mold, in the process, the transfer cylinder 306 drives the clamping cylinder 305 to move, and since the clamping cylinder 305 clamps the metal mesh 500 at the moment, the metal mesh 500 which is punched completely is driven to move towards the receiving wheel 404, so that a section of complete metal mesh 500 is moved to the pouring position, and then the transfer cylinder 306 resets and clamps the metal mesh 500 again. After the mold is opened, under the action of the return spring 106, the push plate 105 is bounced, and drives the push pin 104 to move up to the initial position, so that the mechanism is reset, and the whole equipment completes one cycle.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation and a specific orientation configuration and operation, and thus, should not be construed as limiting the present invention. Furthermore, "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

In the description of the present invention, "a plurality" means two or more unless otherwise specified. In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate member, or they may be connected through two or more elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. The metal mesh sheet punching device is characterized by comprising a punching die (100), wherein the punching die (100) comprises an upper fixing plate (101), a lower fixing plate (102), a punch (103), a push pin (104), a push plate (105), a female die (107) and a push-out air cylinder (108); the upper fixing plate (101) and the lower fixing plate (102) are arranged to move up and down relatively, the punch (103) is fixedly mounted on the upper fixing plate (101), the die (107) is fixedly mounted on the lower fixing plate (102), the push pin (104) is fixedly mounted on the push plate (105) and inserted into the punched hole of the punch (103), and the push cylinder (108) is connected with the push plate (104).

2. A device as claimed in claim 1, characterised in that the punching die (100) further comprises a return spring (106), the return spring (106) having a tendency to return the push plate (105).

3. A mesh sheet blanking apparatus according to claim 1, further comprising a feeding pinch-and-pull mechanism (300); the feeding clamping and pulling mechanism (300) is arranged on the lower fixing plate (102) and comprises a fixed clamping plate (301), a movable clamping plate (302), a clamping cylinder (305) and a transfer cylinder (306), and avoidance holes are formed in the movable clamping plate (302) and the fixed clamping plate (301); the clamping cylinder (305) drives the movable clamping plate (302) and the fixed clamping plate (301) to move up and down, and the transfer cylinder (306) drives the clamping cylinder (305) to reciprocate along the moving direction of the metal mesh cloth (500).

4. A device as claimed in claim 3, wherein the clamping cylinder (305) is a finger cylinder having a movable mounting block (304) and a fixed mounting block (303) mounted at its finger ends, respectively, the movable clamping plate (302) being mounted on the movable mounting block (304) and the fixed clamping plate (301) being mounted on the fixed mounting block (303).

5. A device as claimed in claim 4, characterized in that said clamping cylinders (305) are arranged opposite each other on the front and rear sides of the path of travel of the wire mesh (500).

6. A blanking device for metal mesh sheets according to claim 4, characterized in that there are two of said movable jaw (302) and said fixed jaw (301).

7. An injection molding apparatus comprising a frame (400) and an injection mold (200) mounted on a base (401) of the frame (400), the injection mold (200) comprising a mold core (202), characterized by a mesh sheet punching apparatus according to claim 1; the punching die (100) is arranged on a lifting plate (402) of the rack (400), and the female die (107) corresponds to a pouring cavity on the die core (202); the die cutting die (100) can be opened and closed with the injection die (200).

8. An injection molding apparatus as claimed in claim 7, wherein the mold plate (204) of the injection mold (200) is provided with clamp locating posts (203) and the bottom stationary plate (102) of the die cutting mold (100) is provided with clamp locating holes.

9. An injection molding apparatus as claimed in claim 7, wherein a take-up wheel (404) and a take-up wheel (403) are also mounted on the lift plate (402) of the frame (400).

10. An injection molding apparatus as claimed in claim 7, wherein said lift plate (402) is slidably coupled to said base (401) by linear guide posts (406).