Anti-deviation high-precision plastic forming mold

Abstract

The utility model is suitable for the technical field of precision mould equipment, provides a kind of anti-deviation high-precision plastic forming mould, including device main body, device main body includes workbench, upper die, lower die and electric telescopic column, electric telescopic column both ends are connected in workbench and upper die, workbench has sliding slot;Anti-deviation structure, anti-deviation structure includes abutment plate, rack, rotating gear and motor, rack is installed in abutment plate lower end, rotating gear is engaged with rack, abutment plate lower end is slidably placed in sliding slot, rack axial and sliding slot axial are parallel;In the utility model, the motor driving rotating gear rotates after normal rotation, rack moves in the same direction, abutment plate moves along sliding slot oppositely, until abutment plate and lower die side wall are attached;Motor driving rotating gear reverse rotation abutment plate moves along sliding slot oppositely after reverse, to ensure that upper die and lower die are aligned, and prevent the molten plastic adhered on abutment plate from overflowing.

Description

Technical Field

[0001] This utility model belongs to the field of precision mold equipment technology, and in particular relates to a high-precision plastic molding mold that prevents deviation. Background Technology

[0002] Plastic molding molds are tools used in conjunction with plastic molding machines in the plastics processing industry. They are mainly used to give plastic products a complete shape and precise dimensions. Simply put, the material enters the barrel from the hopper, melts through external heating and the shearing action of the screw, and then the molten material is injected into the mold cavity under pressure. After cooling and solidification, the mold is opened and the product is taken out.

[0003] A search revealed that Chinese Patent (Publication No.: CN221677764U) discloses a high-precision plastic molding die with anti-deviation features, including a processing table. A control panel is fixedly connected to the front right end of the processing table. Anti-deviation devices are movably connected to the upper left and upper right ends of the processing table. A lower mold is fixedly connected to the middle of the upper end of the processing table, located between the two anti-deviation devices. Support rods are fixedly connected to the four corners of the upper end of the processing table. An upper horizontal plate is fixedly connected to the upper end of the four support rods. A hydraulic cylinder is fixedly connected to the middle of the upper end of the upper horizontal plate. A connecting mechanism is fixedly connected to the telescopic end of the hydraulic cylinder. An upper mold is fixedly connected to the lower end of the connecting mechanism. The high-precision plastic molding die with anti-deviation features of this invention can prevent the upper mold from shifting during movement, thus improving stability.

[0004] However, since the limiting plate of the device is fixedly installed on the processing table by connecting bolts and abuts against the side wall of the lower mold, it is difficult to remove the limiting plate immediately after injection molding is completed. As a result, the molten plastic overflowing between the upper and lower molds will adhere to the limiting plate after cooling and is difficult to remove, making it unusable for the next use. Therefore, a high-precision plastic molding die with anti-displacement function is needed to solve the above problems. Utility Model Content

[0005] The purpose of this utility model embodiment is to provide a high-precision plastic molding die with anti-deviation capability to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A high-precision plastic molding die with anti-deviation feature includes:

[0008] The main body of the device includes a workbench, an upper mold, a lower mold, and an electric telescopic column. The lower mold is installed on the workbench. The two ends of the electric telescopic column are connected to the upper end of the workbench and the upper mold. The upper mold is positioned at a predetermined distance above the lower mold. The workbench has a pair of sliding grooves, which are symmetrically distributed with the lower mold as the center.

[0009] An anti-offset structure is provided, comprising a pair of abutment plates, a pair of racks, a rotating gear, and a motor. One end of each rack is respectively mounted on the lower end of each abutment plate. The rotating gear meshes with the rack. The output shaft of the motor is connected to the rotating gear. The lower end of each abutment plate is slidably placed in the slide groove. The rotating gear is rotatably mounted on the worktable. The axial direction of the rack is parallel to the axial direction of the slide groove.

[0010] In a further technical solution, the upper end of the abutment plate has a sliding hole, and the anti-displacement structure further includes multiple sliding cylinders and multiple springs. The sliding cylinders are slidably placed in the sliding hole, and the springs are placed in the sliding cylinders. The springs are connected to the top wall of the sliding cylinder and the inner wall of the sliding hole.

[0011] In a further technical solution, the anti-deviation structure also includes multiple telescopic strips, the width of which is equal to the width of the slide groove, and the two ends of which are connected to the side wall of the abutment plate and the inner wall of the slide groove.

[0012] In a further technical solution, the upper end of the abutment plate is also provided with a limiting post, and the upper mold has a pair of limiting holes, with the limiting post inserted into the limiting holes.

[0013] In a further technical solution, the side wall of the abutment plate has a limiting groove, and the opposite side wall of the lower mold has a fixed cylinder, a rotating column and a limiting plate. The rotating column is rotatably installed on the fixed cylinder, and the limiting plate is fixedly installed on one end of the rotating column. The limiting plate is adapted to the limiting groove and fits against the abutment plate.

[0014] In a further technical solution, the upper end face of the upper mold has a pair of insertion slots, the main body of the device also includes a pair of scrapers, a cylinder and a connecting plate, the connecting plate is connected to the pair of scrapers, the scrapers are slidably placed in the insertion slots, the output shaft of the cylinder is connected to the connecting plate, and the cylinder is installed on the upper mold.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This invention features an anti-offset structure comprising a contact plate, a rack, a rotating gear, and a motor. One end of each rack is mounted on the lower end of each contact plate. The rotating gear meshes with the rack, and the motor's output shaft is connected to the rotating gear. The lower end of the contact plate is slidably placed in a groove, with the rack's axial direction parallel to the groove's axial direction. The motor, rotating in a forward direction, drives the rotating gear to rotate, which in turn moves the rack meshing with the rotating gear in the same direction until the contact plate, fixedly connected to the rack, moves towards the opposite side of the groove until it contacts the side wall of the lower mold. After the upper and lower molds contact each other, the motor, rotating in a reverse direction, drives the rotating gear to rotate in the opposite direction, causing the contact plate to move away from each other along the groove. This ensures alignment of the upper and lower molds and prevents molten plastic from overflowing between the upper and lower molds and adhering to the contact plate.

[0017] This invention features a sliding cylinder and a spring. The sliding cylinder is slidably placed in a sliding hole, and the spring is placed in the sliding cylinder and connected to the top wall of the sliding cylinder and the inner wall of the sliding hole. During the downward movement of the upper mold, the lower end face of the upper mold abuts against and presses down on the sliding cylinder, compressing the spring. By setting up the sliding cylinder and the spring, a buffering effect is achieved, preventing excessive impact force between the upper and lower molds from causing displacement and extending the service life of the equipment.

[0018] To more clearly illustrate the structural features and effects of this utility model, the following detailed description is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0019] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0020] Figure 2 This is a partial exploded view of the present invention;

[0021] Figure 3 This is a top view of the structure of this utility model;

[0022] Figure 4 This is a partial exploded view of the anti-displacement structure of this utility model.

[0023] In the diagram: 1. Main body of the device; 11. Workbench; 111. Slide groove; 12. Upper mold; 121. Limiting hole; 122. Insertion groove; 13. Lower mold; 131. Fixed cylinder; 132. Rotating column; 133. Limiting plate; 14. Electric telescopic column; 15. Scraper; 16. Cylinder; 17. Connecting plate; 2. Anti-deviation structure; 21. Abutment plate; 211. Slide hole; 212. Limiting column; 213. Limiting groove; 22. Rack; 23. Rotating gear; 24. Motor; 25. Slide cylinder; 26. Spring; 27. Telescopic bar. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0025] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0026] like Figures 1 to 4 As shown, this utility model embodiment provides a high-precision plastic molding die with anti-deviation feature, comprising:

[0027] The main body of the device 1 includes a workbench 11, an upper mold 12, a lower mold 13, and an electric telescopic column 14. The lower mold 13 is installed on the workbench 11. The two ends of the electric telescopic column 14 are connected to the upper end of the workbench 11 and the upper mold 12. The upper mold 12 is positioned at a predetermined distance above the lower mold 13. The workbench 11 has a pair of sliding grooves 111, which are symmetrically distributed around the lower mold 13.

[0028] Anti-offset structure 2 includes a pair of abutment plates 21, a pair of racks 22, a rotating gear 23, and a motor 24. One end of each rack 22 is respectively installed at the lower end of each abutment plate 21. The rotating gear 23 meshes with the rack 22. The output shaft of the motor 24 is connected to the rotating gear 23. The lower end of the abutment plate 21 is slidably placed in the slide groove 111. The rotating gear 23 is rotatably installed on the worktable 11. The axial direction of the rack 22 is parallel to the axial direction of the slide groove 111.

[0029] In this embodiment, the forward-rotating motor 24 drives the rotating gear 23 to rotate, which in turn drives a pair of racks 22 meshing with the rotating gear 23 to move in the same direction until a pair of abutment plates 21 fixedly connected to the racks 22 move towards each other along the slide groove 111 until the pair of abutment plates 21 are in contact with the side wall of the lower mold 13; after the upper mold 12 and the lower mold 13 are in contact, the reverse-rotating motor 24 drives the rotating gear 23 to rotate in the opposite direction, which in turn drives a pair of abutment plates 21 to move away from each other along the slide groove 111; by setting the movable abutment plates 21, not only is the alignment of the upper mold 12 and the lower mold 13 ensured, but also the molten plastic is prevented from overflowing between the upper mold 12 and the lower mold 13 and adhering to the abutment plates 21;

[0030] Specifically, the upper end of the abutment plate 21 has a sliding hole 211, and the anti-displacement structure 2 also includes multiple sliding cylinders 25 and multiple springs 26. The sliding cylinders 25 are slidably placed in the sliding hole 211, and the springs 26 are placed in the sliding cylinders 25. The springs 26 are connected to the top wall of the sliding cylinders 25 and the inner wall of the sliding hole 211.

[0031] In this embodiment, during the downward movement of the upper mold 12, the lower end face of the upper mold 12 abuts against and presses down the slide cylinder 25, and the spring 26 is compressed. By setting the slide cylinder 25 and the spring 26, a buffering effect is achieved to prevent the upper mold 12 from shifting due to excessive impact force with the lower mold 13, and to extend the service life of the equipment.

[0032] Specifically, the anti-displacement structure 2 also includes multiple telescopic strips 27, the width of which is equal to the width of the slide groove 111, and the two ends of the telescopic strips 27 are connected to the side wall of the abutment plate 21 and the inner wall of the slide groove 111.

[0033] In this embodiment, when the abutment plate 21 moves to fit against the side wall of the lower mold 13, the telescopic strip 27 connected to the inner wall of the slide 111 and the side wall of the abutment plate 21 is stretched. By setting the telescopic strip 27, impurities or molten plastic are prevented from entering the worktable 11 through the slide 111.

[0034] Specifically, the upper end of the abutment plate 21 also has a limiting post 212, and the upper mold 12 has a pair of limiting holes 121, with the limiting post 212 inserted into the limiting hole 121;

[0035] In this embodiment, the limiting post 212 is inserted into the limiting hole 121. By setting the limiting post 212, the upper mold 12 is fixed to the abutment plate 21, thereby preventing the upper mold 12 from shifting during the downward movement, thus ensuring the smooth progress of the injection molding process.

[0036] Specifically, the side wall of the abutment plate 21 has a limiting groove 213, and the opposite side wall of the lower mold 13 has a fixed cylinder 131, a rotating column 132 and a limiting plate 133. The rotating column 132 is rotatably installed on the fixed cylinder 131, and the limiting plate 133 is fixedly installed on one end of the rotating column 132. The limiting plate 133 is adapted to the limiting groove 213 and the limiting plate 133 is in contact with the abutment plate 21.

[0037] In this embodiment, after the abutment plate 21 abuts against the lower mold 13, the worker rotates the limiting plate 133, causing the rotating column 132 to rotate axially around the fixed cylinder 131 until the axial direction of the limiting plate 133 intersects with the axial direction of the limiting groove 213. At this time, the limiting plate 133 and the side wall of the abutment plate 21 abut against each other. By setting the rotating column 132 and the limiting plate 133, the movement of the abutment plate 21 is prevented, ensuring that the abutment plate 21 is always fixed to the lower mold 13.

[0038] Specifically, the upper end face of the upper mold 12 has a pair of insertion slots 122, and the main body 1 of the device also includes a pair of scrapers 15, a cylinder 16 and a connecting plate 17. The connecting plate 17 is connected to the pair of scrapers 15, the scrapers 15 are slidably placed in the insertion slots 122, the output shaft of the cylinder 16 is connected to the connecting plate 17, and the cylinder 16 is installed on the upper mold 12.

[0039] In this embodiment, after the upper mold 12 and the lower mold 13 come into contact, the reversed motor 24 drives the rotating gear 23 to rotate in the opposite direction, thereby driving a pair of abutment plates 21 to move in opposite directions along the slide groove 111; then, the molten plastic is pressed between the upper mold 12 and the lower mold 13, and the activated cylinder 16 drives the connecting plate 17 and the scraper 15 to move down along the insertion groove 122 toward the lower mold 13. The downward-moving scraper 15 scrapes away the molten plastic overflowing between the upper mold 12 and the lower mold 13, thereby avoiding the difficulty in cleaning the molten plastic after it cools down.

[0040] The working principle of this utility model is as follows:

[0041] Before use, the forward-rotating motor 24 drives the rotating gear 23 to rotate, which in turn drives a pair of racks 22 meshing with the rotating gear 23 to move in the same direction until a pair of abutting plates 21 fixedly connected to the racks 22 move towards each other along the slide 111 until the pair of abutting plates 21 are in contact with the side wall of the lower mold 13. At this time, the telescopic strip 27 connected to the inner wall of the slide 111 and the side wall of the abutting plate 21 is stretched. By setting the telescopic strip 27, impurities or molten plastic are prevented from entering the worktable 11 through the slide 111.

[0042] After the abutment plate 21 abuts against the lower mold 13, the worker rotates the limiting plate 133, causing the rotating column 132 to rotate axially around the fixed cylinder 131 until the axial direction of the limiting plate 133 intersects with the axial direction of the limiting groove 213. At this time, the limiting plate 133 and the side wall of the abutment plate 21 abut against each other. By setting the rotating column 132 and the limiting plate 133, the movement of the abutment plate 21 is prevented, ensuring that the abutment plate 21 is always fixed to the lower mold 13.

[0043] During use, the electric telescopic column 14 drives the upper mold 12 to move down until it is in contact with the lower mold 13. At this time, the limiting column 212 is inserted into the limiting hole 121. By setting the limiting column 212, the upper mold 12 is fixed to the abutment plate 21, thereby preventing the upper mold 12 from shifting during the downward movement, thus ensuring the smooth progress of the injection molding process. During the downward movement, the lower end face of the upper mold 12 abuts against and presses down on the slide cylinder 25, and the spring 26 is compressed. By setting the slide cylinder 25 and the spring 26, a buffering effect is provided to prevent the upper mold 12 from shifting due to excessive impact force between the upper mold 12 and the lower mold 13, and to extend the service life of the equipment.

[0044] After the upper mold 12 and the lower mold 13 come into contact, the reversed motor 24 drives the rotating gear 23 to rotate in the opposite direction, thereby driving a pair of abutment plates 21 to move in opposite directions along the slide groove 111. Subsequently, the molten plastic is pressed between the upper mold 12 and the lower mold 13. The activated cylinder 16 drives the connecting plate 17 and the scraper 15 to move down along the insertion groove 122 toward the lower mold 13. The downward-moving scraper 15 scrapes away the molten plastic overflowing between the upper mold 12 and the lower mold 13, thereby avoiding the difficulty in cleaning the molten plastic after it cools down.

[0045] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-precision plastic molding die with anti-deviation feature, characterized in that, include: The device body (1) includes a workbench (11), an upper mold (12), a lower mold (13), and an electric telescopic column (14). The lower mold (13) is installed on the workbench (11). The two ends of the electric telescopic column (14) are connected to the upper end of the workbench (11) and the upper mold (12). The upper mold (12) is placed at a predetermined distance above the lower mold (13). The workbench (11) has a pair of slides (111). The pair of slides (111) are symmetrically distributed with the lower mold (13) as the center. The anti-offset structure (2) includes a pair of abutment plates (21), a pair of racks (22), a rotating gear (23), and a motor (24). One end of each rack (22) is respectively installed at the lower end of each abutment plate (21). The rotating gear (23) meshes with the rack (22). The output shaft of the motor (24) is connected to the rotating gear (23). The lower end of the abutment plate (21) is slidably placed in the slide groove (111). The rotating gear (23) is rotatably installed on the worktable (11). The axial direction of the rack (22) is parallel to the axial direction of the slide groove (111).

2. The anti-deviation high-precision plastic molding die according to claim 1, characterized in that: The upper end of the abutment plate (21) has a sliding hole (211). The anti-offset structure (2) also includes a plurality of sliding cylinders (25) and a plurality of springs (26). The sliding cylinders (25) are slidably placed in the sliding hole (211). The springs (26) are placed in the sliding cylinders (25). The springs (26) are connected to the top wall of the sliding cylinders (25) and the inner wall of the sliding hole (211).

3. The anti-deviation high-precision plastic molding die according to claim 2, characterized in that: The anti-offset structure (2) also includes multiple telescopic strips (27), the width of which is equal to the width of the groove (111), and the two ends of which are connected to the side wall of the abutment plate (21) and the inner wall of the groove (111).

4. The anti-displacement high-precision plastic molding die according to claim 3, characterized in that: The upper end of the abutment plate (21) also has a limiting post (212), and the upper mold (12) has a pair of limiting holes (121), and the limiting post (212) is inserted into the limiting hole (121).

5. The anti-deviation high-precision plastic molding die according to claim 4, characterized in that: The abutment plate (21) has a limiting groove (213) on its side wall. The lower mold (13) has a fixed cylinder (131), a rotating column (132) and a limiting plate (133) on its opposite side wall. The rotating column (132) is rotatably installed on the fixed cylinder (131). The limiting plate (133) is fixedly installed on one end of the rotating column (132). The limiting plate (133) is adapted to the limiting groove (213). The limiting plate (133) is in contact with the abutment plate (21).

6. The anti-deviation high-precision plastic molding die according to claim 5, characterized in that: The upper mold (12) has a pair of insertion slots (122) on its upper end face. The main body (1) of the device also includes a pair of scrapers (15), a cylinder (16) and a connecting plate (17). The connecting plate (17) is connected to the pair of scrapers (15). The scrapers (15) are slidably placed in the insertion slots (122). The output shaft of the cylinder (16) is connected to the connecting plate (17). The cylinder (16) is installed on the upper mold (12).

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