Clamp for injection molding machine

Abstract

The utility model provides a fixture for an injection molding machine, which relates to the technical field of plastic product production and comprises a bottom plate and a mounting bin fixedly connected onto the bottom plate, a transmission component is arranged on the bottom plate and comprises a sliding plate, a first rotating shaft is rotatably connected onto the sliding plate, a transmission block is rotatably connected onto the first rotating shaft, and a second rotating shaft is rotatably connected onto the transmission block. A second rotating shaft is rotatably connected to the side, away from the first rotating shaft, of the transmission block, a first clamping piece is rotatably connected to the second rotating shaft, a fourth rotating shaft is fixedly connected to the sliding plate, an arc-shaped piece is fixedly connected to the fourth rotating shaft, a connecting column is fixedly connected to the end, away from the fourth rotating shaft, of the arc-shaped piece, and a sliding block is fixedly connected to the connecting column; according to the material clamping device, the integrity and quality of materials are protected, and the problems that in the prior art, only springs are used for buffering material clamping, and the buffering effect becomes poor after long-term use are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic product production, in particular to a fixture for an injection molding machine. Background Art

[0002] The main function of the fixture of an injection molding machine is to ensure that during the injection molding process, the mold or workpiece can maintain a stable position, withstand the pressure and impact force generated during injection molding, prevent problems such as displacement and deformation, so as to ensure the dimensional accuracy, shape accuracy and quality of the injection molded product.

[0003] The existing Chinese patent (publication number CN217916598U) discloses a fixture for an injection molding machine. For this fixture for an injection molding machine, by adjusting the position of the first connecting plate, when the support sleeve and the clamping block inside the first connecting plate clamp the plastic product, the spring slows down the extrusion of the clamping block on the plastic product through its own elastic force. At the same time, the rubber pad protects the inside of the clamping block, so that the fixture will not deform the plastic product when clamping it;

[0004] However, in actual use, the above-mentioned comparative document uses a spring to relieve the extrusion force on the plastic product. During the frequent compression and extension process of the spring, fatigue damage will gradually accumulate. As the use time increases, the elasticity of the spring may weaken, resulting in a gradual reduction in its effect of slowing down extrusion.

[0005] Therefore, the utility model proposes a fixture for an injection molding machine. Summary of the Utility Model

[0006] The purpose of the utility model is to solve the deficiencies existing in the prior art and provide a fixture for an injection molding machine.

[0007] To achieve the above purpose, the utility model adopts the following technical scheme: A fixture for an injection molding machine includes a bottom plate and an installation bin fixedly connected to the bottom plate. It is characterized in that a transmission component is arranged on the bottom plate;

[0008] The transmission component includes a sliding plate. A first rotating shaft is rotatably connected to the sliding plate. A transmission block is rotatably connected to the first rotating shaft. A second rotating shaft is rotatably connected to the side of the transmission block far from the first rotating shaft. A first clamping member is rotatably connected to the second rotating shaft. A fourth rotating shaft is fixedly connected to the sliding plate. An arc-shaped member is fixedly connected to the fourth rotating shaft. A connecting column is fixedly connected to the end of the arc-shaped member far from the fourth rotating shaft. A sliding block is fixedly connected to the connecting column.

[0009] As a preferred implementation manner, a third rotating shaft is rotatably connected to the sliding block. A transmission bar is rotatably connected to the third rotating shaft. A first clamping member is fixedly connected to the end of the transmission bar far from the third rotating shaft.

[0010] The technical effect of adopting the above further solution is that: by providing a first clamping member, during use, the first clamping member is driven by an air pump and driven inward by a transmission block to clamp the material.

[0011] As a preferred embodiment, a connecting plate is fixedly connected to the bottom plate, an air pump is fixedly connected to the connecting plate, an air pipe is fixedly communicated with the air pump, an airbag is fixedly communicated with the air pipe, a rubber piston is slidably connected to the airbag, and the side of the rubber piston away from the air pump is fixedly connected to a sliding plate.

[0012] The technical effect of adopting the above further solution is that: the airbag is made of plastic material. By providing a connecting plate to fix the air pump, and then using the air pump as a power source to inflate the airbag, the transmission of the sliding plate can be realized, and the transmission of the transmission block can be realized. This starting transmission method can make the airbag expand to a certain extent after the first clamping member clamps the material, achieving a certain buffering effect.

[0013] As a preferred embodiment, a slide rail is fixedly connected to the bottom plate, the sliding plate is slidably connected in the slide rail, a first guiding member is fixedly connected to the bottom plate, a fixed guiding block is fixedly connected to the bottom plate, and the arc-shaped member is fixedly connected to the fixed guiding block.

[0014] The technical effect of adopting the above further solution is that: by providing a slide rail, it provides a guiding function for the transmission of the sliding plate.

[0015] As a preferred embodiment, three guiding grooves are respectively formed on one side of the bottom plate close to the sliding block, the first clamping member, and the second clamping member, and both the sliding block and the first clamping member are slidably connected in the sliding grooves on the bottom plate.

[0016] The technical effect of adopting the above further solution is that: by providing guiding grooves, during use, the guiding function during the sliding of the sliding block, the first clamping member, and the second guiding member can be realized, avoiding deviation during their transmission.

[0017] As a preferred embodiment, in the three sliding grooves on the bottom plate, a second guiding member is slidably connected in the sliding groove close to the bottom plate, and the side of the second guiding member away from the bottom plate is fixedly connected to the second clamping member.

[0018] The technical effect of adopting the above further solution is that: by providing a second guiding member, the guiding function during the transmission of the first clamping member is realized. When the sliding plate is driven to move towards the side close to the second guiding member, the arc-shaped member will drive the fixed guiding block to pull back, causing the sliding block to be driven to move away from the side of the second guiding member, so that the second clamping member also clamps the material, making the clamping of the material more stable.

[0019] Compared with the prior art, the advantages and positive effects of the present utility model are as follows:

[0020] In the present utility model, through the coordinated action of the air pump, the sliding plate, the transmission block and the clamping member, the rapid clamping of the material can be realized, and the linkage of the second clamping member makes the clamping more stable and reliable, effectively preventing the material from loosening or shifting during the processing. The transmission mode of the airbag inflating to push the sliding plate can provide a certain buffering effect after the first clamping member clamps the material, reducing the impact and damage to the material, protecting the integrity and quality of the material, and solving the problem that in the prior art in the background art, only a spring is used for the buffering effect of clamping the material, and the buffering effect will become worse after long-term use. Brief Description of the Drawings

[0021] Figure 1 It is a schematic diagram of the overall structure of the fixture for an injection molding machine provided by the present utility model;

[0022] Figure 2 It is a schematic diagram of the transmission component structure of the fixture for an injection molding machine provided by the present utility model;

[0023] Figure 3 It is a schematic diagram of the air pump position of the fixture for an injection molding machine provided by the present utility model;

[0024] Figure 4 It is a schematic diagram of the arc-shaped member position of the fixture for an injection molding machine provided by the present utility model.

[0025] Legend Explanation:

[0026] 1. Bottom plate; 12. Installation bin;

[0027] 2. Transmission component; 21. Connecting plate; 22. Air pipe; 23. Airbag; 24. Rubber piston; 25. Air pump; 26. Slide rail; 27. Sliding plate; 28. First rotating shaft; 29. Transmission block; 210. First guiding member; 211. Second rotating shaft; 212. First clamping member; 213. Sliding block; 214. Transmission bar; 215. Third rotating shaft; 216. Second guiding member; 217. Fourth rotating shaft; 218. Arc-shaped member; 219. Fixed guiding block; 220. Connecting column; 221. Second clamping member. Detailed Implementation Modes

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0029] This embodiment provides a technical solution. As Figures 1 to 4 shown, a fixture for an injection molding machine includes a bottom plate 1 and an installation bin 12 fixedly connected to the bottom plate 1. It is characterized in that a transmission assembly 2 is arranged on the bottom plate 1;

[0030] The transmission assembly 2 includes a sliding plate 27. A first rotating shaft 28 is rotatably connected to the sliding plate 27. A transmission block 29 is rotatably connected to the first rotating shaft 28. A second rotating shaft 211 is rotatably connected to the side of the transmission block 29 far from the first rotating shaft 28. A first clamping member 212 is rotatably connected to the second rotating shaft 211. A fourth rotating shaft 217 is fixedly connected to the sliding plate 27. An arc-shaped member 218 is fixedly connected to the fourth rotating shaft 217. A connecting column 220 is fixedly connected to the end of the arc-shaped member 218 far from the fourth rotating shaft 217. A sliding block 213 is fixedly connected to the connecting column 220;

[0031] In the present utility model, through the coordinated action of the air pump 25, the sliding plate 27, the transmission block 29 and the clamping members, the rapid clamping of the material can be realized, and the linkage of the second clamping member 221 makes the clamping more stable and reliable, effectively preventing the material from loosening or shifting during the processing. The transmission mode of the airbag 23 inflating to push the sliding plate 27 can provide a certain buffering effect after the first clamping member 212 clamps the material, reducing the impact and damage to the material, protecting the integrity and quality of the material, and solving the problem that the prior art in the background art only uses a spring for the buffering effect of clamping the material, and the buffering effect will become worse after long-term use.

[0032] Further, as Figures 1 to 4 shown, a third rotating shaft 215 is rotatably connected to the sliding block 213. A transmission bar 214 is rotatably connected to the third rotating shaft 215. A first clamping member 212 is fixedly connected to the end of the transmission bar 214 far from the third rotating shaft 215. By providing the first clamping member 212, during use, the first clamping member 212 is driven by the air pump 25 to be clamped inward by the transmission block 29 to realize the clamping of the material;

[0033] A connecting plate 21 is fixedly connected to the bottom plate 1, an air pump 25 is fixedly connected to the connecting plate 21, an air pipe 22 is fixedly connected and communicated to the air pump 25, an air bag 23 is fixedly connected and communicated to the air pipe 22, a rubber piston 24 is slidably connected to the air bag 23, and one side of the rubber piston 24 away from the air pump 25 is fixedly connected to a sliding plate 27. The air bag 23 is made of plastic material. By providing the connecting plate 21 to fix the air pump 25, and then using the air pump 25 as a power source to inflate the air bag 23, the transmission of the sliding plate 27 can be realized, and the transmission of the transmission block 29 can be realized. This starting transmission method can make the air bag 23 expand to a certain extent after the first clamping member 212 clamps the material, achieving a certain buffering effect;

[0034] A slide rail 26 is fixedly connected to the bottom plate 1, the sliding plate 27 is slidably connected within the slide rail 26, a first guiding member 210 is fixedly connected to the bottom plate 1, a fixed guiding block 219 is fixedly connected to the bottom plate 1, and an arc-shaped member 218 is fixedly connected to the fixed guiding block 219. By providing the slide rail 26, it provides a guiding function for the transmission of the sliding plate 27;

[0035] On one side of the bottom plate 1 close to the sliding block 213, the first clamping member 212, and the second clamping member 221, three guiding grooves are respectively formed. The sliding block 213 and the first clamping member 212 are both slidably connected within the sliding grooves on the bottom plate 1. By providing the guiding grooves, during use, the guiding functions when the sliding block 213, the first clamping member 212, and the second guiding member 216 slide can be realized, avoiding deviation during their transmission;

[0036] In the above solution, there is also a problem that the second guiding member 216 may deviate from its route during transmission, as Figures 1 to 4 shown. Among the three sliding grooves on the bottom plate 1, the second guiding member 216 is slidably connected within the sliding groove close to the bottom plate 1. The side of the second guiding member 216 away from the bottom plate 1 is fixedly connected to the second clamping member 221. By providing the second guiding member 216, the guiding function during the transmission of the first clamping member 212 is realized. When the sliding plate 27 is driven to move towards the side close to the second guiding member 216, the arc-shaped member 218 will drive the fixed guiding block 219 to pull back, causing the sliding block 213 to be driven to move away from the side of the second guiding member 216, enabling the second clamping member 221 to also clamp the material, making the clamping of the material more stable.

[0037] Working principle:

[0038] As Figures 1-4As shown in the figure: When it is necessary to clamp the material, first start the air pump 25, so that the air pump 25 conveys air into the airbag 23 through the air pipe 22, increasing the air pressure in the airbag 23, causing the rubber piston 24 to slide out under the action of the air pressure. Then, the rubber piston 24 drives the sliding plate 27 to slide, and the sliding plate 27 drives the transmission bar 214 to drive through the first rotating shaft 28, so that the transmission bar 214 slides on the first guiding member 210. Under the guiding action of the first guiding member 210, the end of the transmission block 29 far from the first rotating shaft 28 drives the first clamping member 212 to clamp inward through the second rotating shaft 211, realizing the preliminary clamping of the material. When the sliding plate 27 is driven by the rubber piston 24 to move towards the side close to the first clamping member 212, since the fixed guiding block 219 is fixedly connected to the bottom plate 1, the arc-shaped member 218 will be driven to slide on the fixed guiding block 219, so that the end of the arc-shaped member 218 far from the fourth rotating shaft 217 drives the sliding block 213 to move towards the end far from the first clamping member 212 through the connecting column 220, causing the second clamping member 221 to be driven to clamp the material, realizing the stable clamping of the material.

[0039] The above is only the preferred embodiment of the present invention, and it is not a limitation of the present invention in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present invention, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention still belong to the protection scope of the technical solution of the present invention.

Claims

1. A fixture for an injection molding machine, comprising a bottom plate (1) and an installation bin (12) fixedly connected to the bottom plate (1), characterized in that, A transmission component (2) is provided on the bottom plate (1); The transmission component (2) includes a sliding plate (27). A first rotating shaft (28) is rotatably connected to the sliding plate (27). A transmission block (29) is rotatably connected to the first rotating shaft (28). A second rotating shaft (211) is rotatably connected to a side of the transmission block (29) away from the first rotating shaft (28). A first clamping member (212) is rotatably connected to the second rotating shaft (211). A fourth rotating shaft (217) is fixedly connected to the sliding plate (27). An arc-shaped member (218) is fixedly connected to the fourth rotating shaft (217). A connecting column (220) is fixedly connected to an end of the arc-shaped member (218) away from the fourth rotating shaft (217). A sliding block (213) is fixedly connected to the connecting column (220).

2. The fixture for an injection molding machine according to claim 1, characterized in that: A third rotating shaft (215) is rotatably connected to the sliding block (213). A transmission bar (214) is rotatably connected to the third rotating shaft (215). A first clamping member (212) is fixedly connected to an end of the transmission bar (214) away from the third rotating shaft (215).

3. The fixture for an injection molding machine according to claim 2, characterized in that: A connecting plate (21) is fixedly connected to the bottom plate (1). An air pump (25) is fixedly connected to the connecting plate (21). An air pipe (22) is fixedly connected and communicated to the air pump (25). An air bag (23) is fixedly connected and communicated to the air pipe (22). A rubber piston (24) is slidably connected to the air bag (23). A side of the rubber piston (24) away from the air pump (25) is fixedly connected to the sliding plate (27).

4. The fixture for an injection molding machine according to claim 3, wherein: A slide rail (26) is fixedly connected to the bottom plate (1). The sliding plate (27) is slidably connected within the slide rail (26). A first guiding member (210) is fixedly connected to the bottom plate (1). A fixed guiding block (219) is fixedly connected to the bottom plate (1). The arc-shaped member (218) is fixedly connected to the fixed guiding block (219).

5. The fixture for an injection molding machine according to claim 4, characterized in that: Three guiding grooves are respectively formed on a side of the bottom plate (1) close to the sliding block (213), the first clamping member (212), and the second clamping member (221). The sliding block (213) and the first clamping member (212) are both slidably connected within the sliding grooves on the bottom plate (1).

6. The fixture for an injection molding machine according to claim 5, characterized in that: Within the three sliding grooves on the bottom plate (1), a second guiding member (216) is slidably connected within the sliding groove close to the bottom plate (1). A side of the second guiding member (216) away from the bottom plate (1) is fixedly connected to the second clamping member (221).

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