Injection product shearing and positioning jig

Abstract

The utility model discloses an injection molding product shearing and positioning jig, which relates to the technical field of injection molding product processing and comprises a table board, a shearing knife is arranged above the table board, a support is arranged in the middle of the table board, a lead screw is rotatably arranged in the support, the surface of the lead screw is in threaded connection with a sliding block through two lead screw nuts, and the sliding block is connected with the table board. Two pressing plates are symmetrically arranged on one side of the sliding block located at the top, two material guiding plates are symmetrically arranged on one side of the sliding block located at the bottom, two supporting columns are arranged on one side of the top end of the table top, and a moving assembly for moving a shear knife is arranged on the other side of the top end of the table top. The utility model has the beneficial effects that the pressing plate is enabled to be in tight contact with an injection product and finish accurate pressing and positioning, so that the possible displacement or error of the injection product in the shearing operation is effectively prevented, and a firmer guarantee is provided for the final quality of the injection product; and the consistency and the stability of the production quality are obviously improved.

Description

Technical Field

[0001] The utility model relates to a positioning jig, in particular to a shearing and positioning jig for injection molding products, and belongs to the technical field of injection molding product processing. Background Art

[0002] Injection molded parts refer to various injection molded products produced by injection molding machines, which are collectively referred to as injection molded parts. Injection molded parts are generally made by compression molding, transfer molding, and injection molding. Lamination, compression molding, and thermoforming are used to shape plastic on a flat surface. The lamination, compression molding, and thermoforming molding processes will form excess waste of the same width at the edge of the plastic shell of injection molded parts formed in the same batch. Positioning fixtures are required to fix the positioning during shearing.

[0003] Among them, the "automatic shearing device for injection molded parts with a positioning function" disclosed in the application number "202222573413.1" "comprises a workbench, a low support leg is fixedly connected to the edge of the bottom surface of the workbench, a column is fixedly connected to the upper surface of the workbench, a horizontal column is fixedly connected to the top of the column, and a shearing cylinder is fixedly connected to the center position of the top of the horizontal column." In the utility model, a positioning component is integrally provided with the output end of the shearing cylinder to assist in shearing injection molded parts of waste materials of different widths. The lateral distance between the shearing blade and the blocking plate can be adjusted according to the actual width of the injection molded waste materials through the positioning component. Compared with the traditional manual shearing method, starting the shearing cylinder can accurately shear the waste materials at the edge of the injection molded parts of the same batch, and the shearing efficiency is high.

[0004] However, the above method also has the following defects: the shearing blade is driven by a shear cylinder to accurately cut the excess waste at the edge of the injection molded part; however, in this shearing operation process, there is a lack of effective positioning or fixing settings for the injection molded part, which can easily lead to positional offset or error during the shearing process, thereby adversely affecting the final quality of the product and reducing the consistency of production quality. Utility Model Content

[0005] The purpose of the present invention is to provide a shearing and positioning jig for injection molded products, so as to solve the problem in the above background art that injection molded parts lack positioning or fixing settings during shearing, which easily leads to errors and affects quality.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a shearing and positioning jig for injection molded products, comprising a table top, a shearing knife provided above the table top, a bracket provided in the middle of the table top, a screw rod provided for rotation inside the bracket, a slider threadedly connected to the surface of the screw rod through two screw nuts, two pressure plates symmetrically provided on one side of the slider located at the top, two material guide plates symmetrically provided on one side of the slider located at the bottom, two pillars provided on one side of the top end of the table top, and a moving component for moving the shearing knife provided on the other side of the top end of the table top.

[0007] As a preferred technical solution of the present invention, the bottom end of the table top is provided with four evenly spaced support legs, and the top of the table top is provided with a material guide trough that cooperates with the material guide plate for movement.

[0008] As a preferred technical solution of the present utility model, a horizontal plate is provided at the top of the two pillars, and a lifting assembly is provided at the top of the horizontal plate. The lifting assembly includes an electric push rod, and the electric push rod is fixedly installed in the middle of the top of the horizontal plate. The telescopic rod of the electric push rod passes through the horizontal plate and is provided with a mounting frame. A plurality of evenly spaced bolts are provided on the surface of the shearing knife, and a screw hole is provided on one side of the mounting frame for threaded connection with the bolt.

[0009] As a preferred technical solution of the present invention, guide rods are provided on both sides of the top end of the mounting frame, and the top ends of the guide rods pass through the transverse plate and extend to the top of the transverse plate.

[0010] As a preferred technical solution of the present invention, positioning plates are provided at the bottoms of both sides of the bracket, and the bottom ends of the positioning plates are slidably connected to the top end of the table top.

[0011] As an optimal technical solution of the present invention, a forward and reverse motor is provided at the top of the bracket, the output shaft of the forward and reverse motor passes through the bracket and is fixedly connected to the top of the screw rod, two guide blocks are symmetrically provided on the surface of the slider, and the inner wall of the bracket is provided with a guide groove that slides with the guide block.

[0012] As a preferred technical solution of the present utility model, the moving component includes an electric telescopic column, which is fixedly installed on the other side of the top of the table. The telescopic rod of the electric telescopic column is provided with a push plate, and movable plates are provided on both sides of the bottom end of the push plate. The bottom end of the pillar is fixedly connected to one side of the top of the movable plate, and movable grooves are provided on both sides of the top of the table for cooperating with the movement of the movable plate.

[0013] As an optimal technical solution of the present invention, limit plates are provided on both sides of the movable plate, a limit groove is provided inside the movable groove for slidingly cooperating with the limit plate, a slide rod is provided in the middle of the movable groove, and the movable plate is sleeved on the outside of the slide rod.

[0014] Compared with related technologies, the shear positioning fixture for injection molded products provided by the present invention has the following beneficial effects:

[0015] 1. The positive driving force of the screw rod is used to drive the two sliders mounted on its surface to move synchronously in the vertical direction, so that the pressure plate is in close contact with the injection molded product and completes precise clamping and positioning. This process effectively prevents the displacement or error that may occur in the injection molded product during the shearing operation, provides a more solid guarantee for the final quality of the injection molded product, and significantly improves the consistency and stability of production quality.

[0016] 2. In addition, the reverse rotation of the screw rod can drive the slider to move upward in the vertical direction, so that the pressure plate can be easily separated from the compressed injection molded product. At the same time, this reverse rotation also drives the guide plate to rise synchronously until the guide plate is in close contact with the injection molded product that has been sheared. The injection molded product is guided by the guide plate, which greatly facilitates the subsequent guiding and unloading operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of the utility model;

[0018] Figure 2 This is a schematic diagram of the explosion structure of the table top of the utility model;

[0019] Figure 3 This is a schematic diagram of the exploded structure of the bracket of the utility model;

[0020] Figure 4 This is a schematic diagram of the exploded structure of the shear knife of the utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the mobile component of the utility model;

[0022] Figure 6 For this utility model Figure 5 A is an enlarged structural diagram of FIG.

[0023] In the figure: 1. Table; 2. Shearing knife; 3. Bracket; 4. Screw; 5. Slider; 6. Pressure plate; 7. Guide plate; 8. Guide trough; 9. Pillar; 10. Support leg; 11. Moving assembly; 1101. Electric telescopic column; 1102. Push plate; 1103. Moving plate; 1104. Limiting plate; 1105. Sliding rod; 1106. Moving trough; 12. Horizontal plate; 13. Lifting assembly; 1301. Electric push rod; 1302. Mounting frame; 1303. Guide rod; 1304. Bolt; 14. Guide block; 15. Positioning plate; 16. Guide trough; 17. Forward and reverse motor. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] See also Figure 1-6 The utility model provides a shearing and positioning jig for injection molded products, including a table 1, a shearing knife 2 is provided above the table 1, and the shearing knife 2 is used to facilitate shearing of the injection molded product on the table 1. A bracket 3 is provided in the middle of the table 1, and a screw rod 4 is provided for rotation inside the bracket 3. The surface of the screw rod 4 is threadedly connected to a slider 5 through two screw nuts. Two pressure plates 6 are symmetrically provided on one side of the slider 5 at the top, and a rubber pad is also provided at the bottom end of the pressure plate 6 to facilitate protection of the injection molded product. The positive rotation of the screw rod 4 can make the two sliders 5 on the surface of the screw rod 4 move synchronously in the vertical direction. The slider 5 at the bottom is symmetrically provided with two guide plates 7, and the top of the table 1 is provided with two pillars 9. The other side of the top of the table 1 is provided with a moving component 11 for facilitating the movement of the shearing knife 2. The set moving component 11 is convenient for adjusting the position of the shearing knife 2, and can shear waste materials at the edges of injection molded parts of different thicknesses.

[0026] The moving assembly 11 includes an electric telescopic column 1101, which is fixedly mounted on the other side of the top of the table 1. The telescopic rod of the electric telescopic column 1101 is provided with a push plate 1102. Both sides of the bottom end of the push plate 1102 are provided with a moving plate 1103. The bottom end of the pillar 9 is fixedly connected to one side of the top of the moving plate 1103. Both sides of the top of the table 1 are provided with a moving groove 1106 that cooperates with the movement of the moving plate 1103. The telescopic rod of the electric telescopic column 1101 is extended and retracted, which drives the push plate 1102 and the moving plate 1103 to move in the horizontal direction, thereby driving the pillar 9 and the shear knife 2 above the pillar 9 to move and position, so as to facilitate the positioning and shearing of the edges of the injection molded products.

[0027] A limit plate 1104 is provided on both sides of the movable plate 1103. A limit groove is provided inside the movable groove 1106 to slide with the limit plate 1104. A slide bar 1105 is provided in the middle of the movable groove 1106. The movable plate 1103 is sleeved on the outside of the slide bar 1105. The limit plates 1104 and the slide bar 1105 provided on both sides of the movable plate 1103 make the movable plate 1103 more stable during movement, thereby ensuring its stability during movement.

[0028] A forward and reverse motor 17 is provided at the top of the bracket 3. The output shaft of the forward and reverse motor 17 passes through the bracket 3 and is fixedly connected to the top of the screw rod 4. Two guide blocks 14 are symmetrically provided on the surface of the slider 5. The inner wall of the bracket 3 is provided with a guide groove 16 that slides with the guide block 14. By controlling the forward and reverse motor 17 to drive the screw rod 4 to rotate, it is convenient to drive the two sliders 5 to move synchronously in the vertical direction, and thus it is convenient to drive the pressing plate 6 and the guide plate 7 to move in the vertical direction at the same time. The downward pressing plate 6 is used to press, position and fix the injection molded product, the upward guide plate 7 is used to lift the injection molded product, and the guide plate 7 is used to guide the injection molded product.

[0029] A horizontal plate 12 is provided at the top of the two pillars 9, and a lifting assembly 13 is provided at the top of the horizontal plate 12. The lifting assembly 13 includes an electric push rod 1301, which is fixedly installed in the middle of the top of the horizontal plate 12. The telescopic rod of the electric push rod 1301 passes through the horizontal plate 12 and is provided with a mounting bracket 1302. A plurality of evenly spaced bolts 1304 are provided on the surface of the shearing knife 2. One side of the mounting bracket 1302 is provided with a screw hole threadedly connected to the bolt 1304. Through the provided lifting assembly 13, the telescopic rod of the electric push rod 1301 is extended and retracted to drive the mounting bracket 1302 to move in the vertical direction, thereby facilitating the movement of the shearing knife 2 in the vertical direction, thereby facilitating shearing the edge of the injection molded product.

[0030] Guide rods 1303 are provided on both sides of the top of the mounting frame 1302. The top of the guide rods 1303 passes through the horizontal plate 12 and extends to the top of the horizontal plate 12. The guide rods 1303 are provided so that the horizontal plate 12 is not restricted in the process of movement.

[0031] The bottom end of the table top 1 is provided with four evenly spaced support legs 10, and the top of the table top 1 is provided with a guide groove 8 that cooperates with the movement of the guide plate 7. The support legs 10 are provided to facilitate supporting the positioning fixture, and the guide groove 8 is provided so that the guide plate 7 is not restricted in any way during the movement.

[0032] A positioning plate 15 is provided at the bottom of both sides of the bracket 3, and the bottom end of the positioning plate 15 is slidably connected to the top of the table 1. The positioning plate 15 is provided to facilitate the injection molding product to be close to one side of the positioning plate 15, that is, close to one side of the bracket 3.

[0033] When in use, first place the positioning fixture at a suitable work location, then adjust the position of the shear knife 2 according to the waste at the edge of the injection molded products of the same batch, then control the extension and contraction of the telescopic rod of the electric telescopic column 1101 to drive the push plate 1102 and the movable plate 1103 to move in the horizontal direction, thereby driving the support 9 and the cross plate 12 to move horizontally synchronously, thereby facilitating the adjustment of the horizontal position of the shear knife 2. After the position adjustment is completed, the injection molded product is placed on the table 1 so that one side of the injection molded product is close to the bracket 3 and one side of the positioning plate 15, and then control The forward and reverse motor 17 controls the screw 4 to rotate forward, and combined with the screw nut and the guide block 14, the two sliders 5 acting on the surface of the screw 4 move synchronously, so that the pressure plate 6 positions and fixes the top of the injection molded product. At this time, the guide plate 7 is located at the bottom of the table 1, and the positioning and fixation of the injection molded product is quickly completed. Then the staff controls the electric push rod 1301 to drive the mounting frame 1302 and the shearing knife 2 to move in the vertical direction to shear the waste at the edge of the injection molded product. During the shearing process, the sheared waste can be collected through the relevant dust removal settings;

[0034] After the shearing is completed, the screw rod 4 is driven in the reverse direction by controlling the forward and reverse motor 17 to work, thereby driving the two sliders 5 to move upward at the same time, so that the pressure plate 6 and the fixed injection molded product are separated from each other, and the guide plate 7 moves upward to receive the injection molded product. When the guide plate 7 continues to move, the injection molded product slides at the guide plate 7, causing the sheared injection molded product to slide along the direction of the guide plate 7. Finally, the sheared injection molded product can be collected using a receiving barrel.

[0035] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A shearing and positioning jig for injection molded products, comprising a table (1), characterized in that: A shearing knife (2) is provided above the table (1), a bracket (3) is provided in the middle of the table (1), a screw rod (4) is provided inside the bracket (3), and a slider (5) is connected to the surface of the screw rod (4) through two screw nuts. Two pressure plates (6) are symmetrically provided on one side of the slider (5) at the top, and two material guide plates (7) are symmetrically provided on one side of the slider (5) at the bottom. Two pillars (9) are provided on one side of the top of the table (1), and a moving component (11) for moving the shearing knife (2) is provided on the other side of the top of the table (1).

2. The shearing and positioning jig for injection molded products according to claim 1, characterized in that: The bottom end of the table top (1) is provided with four evenly spaced support legs (10), and the top of the table top (1) is provided with a material guide trough (8) that is movably matched with the material guide plate (7).

3. The shearing and positioning jig for injection molded products according to claim 1, characterized in that: A transverse plate (12) is provided at the top of the two pillars (9), and a lifting assembly (13) is provided at the top of the transverse plate (12). The lifting assembly (13) includes an electric push rod (1301), and the electric push rod (1301) is fixedly installed in the middle of the top of the transverse plate (12). The telescopic rod of the electric push rod (1301) passes through the transverse plate (12) and is provided with a mounting frame (1302). The surface of the shearing knife (2) is provided with a plurality of bolts (1304) at even intervals, and a screw hole threadedly connected to the bolt (1304) is opened on one side of the mounting frame (1302).

4. The shearing and positioning jig for injection molded products according to claim 3, characterized in that: Guide rods (1303) are provided on both sides of the top of the mounting frame (1302), and the top ends of the guide rods (1303) pass through the transverse plate (12) and extend to the top of the transverse plate (12).

5. The shearing and positioning jig for injection molded products according to claim 1, characterized in that: Positioning plates (15) are provided at the bottoms of both sides of the bracket (3), and the bottom ends of the positioning plates (15) are slidably connected to the top ends of the table top (1).

6. The shearing and positioning jig for injection molded products according to claim 1, characterized in that: A forward and reverse motor (17) is provided at the top of the bracket (3), an output shaft of the forward and reverse motor (17) passes through the bracket (3) and is fixedly connected to the top of the screw rod (4), two guide blocks (14) are symmetrically provided on the surface of the slider (5), and a guide groove (16) is provided on the inner wall of the bracket (3) for sliding engagement with the guide blocks (14).

7. The shearing and positioning jig for injection molded products according to claim 1, characterized in that: The moving assembly (11) includes an electric telescopic column (1101), which is fixedly mounted on the other side of the top of the table (1), and a telescopic rod of the electric telescopic column (1101) is provided with a push plate (1102), and both sides of the bottom end of the push plate (1102) are provided with a moving plate (1103), the bottom end of the support (9) is fixedly connected to one side of the top end of the moving plate (1103), and both sides of the top end of the table (1) are provided with a moving groove (1106) that cooperates with the moving plate (1103) in movement.

8. The shearing and positioning jig for injection molded products according to claim 7, characterized in that: Limiting plates (1104) are provided on both sides of the movable plate (1103), a limiting groove is provided inside the movable groove (1106) for sliding cooperation with the limiting plates (1104), a sliding rod (1105) is provided in the middle of the movable groove (1106), and the movable plate (1103) is sleeved on the outside of the sliding rod (1105).

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