Injection molding part trimming tool

Abstract

The application discloses a trimming jig for injection-molded parts and relates to the field of injection-molded part processing. The trimming jig comprises a bottom plate, a vertical plate arranged on the bottom plate, three positioning blocks arranged in the vertical plate, positioning holes arranged in the positioning blocks, three positioning holes for respectively placing a large end, a small end and a lug of an injection-molded part, and three grinding assemblies arranged on the bottom plate, wherein the three grinding assemblies correspond to the three positioning blocks and trim the large end, the small end and the lug of the injection-molded part respectively. When trimming the injection-molded part, the large end, the small end and the lug of the injection-molded part are respectively inserted into the three positioning holes, and the three grinding assemblies trim the large end, the small end and the lug of the injection-molded part respectively, so that the trimming efficiency of the injection-molded part is improved.

Description

Technical Field

[0001] This application relates to the field of injection molding processing, and in particular to a tooling for trimming burrs on injection molded parts. Background Technology

[0002] In injection molding, factors such as mold clearance, mismatched process parameters, or material properties often lead to molten plastic overflow, forming burrs on the edges of the molded part. These burrs not only affect the appearance but can also impair the product's dimensional accuracy, functionality, and safety. Therefore, burr removal is an indispensable post-processing step to ensure the quality of injection molded parts.

[0003] Currently, after injection molding, burrs are generated at both ends of the injection molded part along its axis, as well as on the lugs on the side. Traditional manual burr removal methods are time-consuming, labor-intensive, and inefficient, making them unsuitable for large-scale production. Utility Model Content

[0004] To improve the efficiency of deburring injection molded parts, this application provides a tooling for deburring injection molded parts.

[0005] The technical solution for a tooling for trimming burrs on injection molded parts provided in this application is as follows:

[0006] A tooling for trimming burrs on injection molded parts includes a base plate, a vertical plate on the base plate, three positioning blocks inside the vertical plate, and positioning holes in the positioning blocks. The three positioning holes are respectively used to place the large end, small end, and hanging ear of the injection molded part. The base plate is provided with three grinding components, which correspond to the three positioning blocks and respectively trim the burrs on the large end, small end, and hanging ear of the injection molded part.

[0007] By adopting the above technical solution, when deburring injection molded parts, the large end, small end, and hanging ear of the injection molded part are inserted into three positioning holes respectively, and three grinding components deburr the large end, small end, and hanging ear of the injection molded part respectively, thereby improving the efficiency of deburring injection molded parts.

[0008] Preferably, the grinding assembly includes a mounting base, a driving component, a pressure block, and a grinding head. The mounting base is disposed on a base plate, the driving component is disposed on the mounting base, the pressure block is disposed on the mounting base and presses against the driving component, and the grinding head is disposed on the driving end of the driving component.

[0009] By adopting the above technical solution, the driving component drives the grinding head to rotate, the grinding head removes burrs from the injection molded part, and the pressure block and mounting base fix the driving component on the base plate, making the rotation of the grinding head driven by the driving component more stable.

[0010] Preferably, the base plate has three positioning grooves, and the three mounting seats are slidably disposed in the three positioning grooves respectively. The mounting seats have multiple waist-shaped holes, and a first bolt passes through the waist-shaped holes of the mounting seats. The first bolt is threaded and fixed in the base plate.

[0011] By adopting the above technical solution, the mounting seat is fixed in the positioning groove of the base plate using the first bolt, and the mounting seat can slide in the positioning groove through the oblong hole, thereby enabling the position of the grinding head to be adjusted.

[0012] Preferably, a reinforcing plate is provided on the side of the base plate away from the upright plate, and three second bolts are provided in the reinforcing plate, which are respectively threaded to three mounting seats.

[0013] By adopting the above technical solution, the mounting base is reinforced with a reinforcing plate, thereby further improving the stability of the grinding head.

[0014] Preferably, the positioning block is detachably disposed inside the upright plate, and six positioning rods are inserted inside the upright plate, with every two positioning rods passing through a positioning block.

[0015] By adopting the above technical solution, the positioning rod fixes the positioning block inside the upright plate. After removing the positioning rod, the positioning block can be removed from the upright plate, which facilitates the maintenance and replacement of the positioning block.

[0016] Preferably, a baffle is provided on the base plate, and the baffle covers the vertical plate and the grinding assembly.

[0017] By adopting the above technical solution, a shield is used to cover the deburring area, thereby preventing grinding debris from flying.

[0018] Preferably, the baffle is provided with a partition, and a sealed cavity is formed between the partition and the upright plate. The baffle is provided with an air blowing connector that communicates with the sealed cavity, and the bottom plate is provided with a chip discharge groove that communicates with the sealed cavity.

[0019] By adopting the above technical solution, during the deburring process, the grinding chips are located in a closed cavity. The air supply equipment blows air into the closed cavity through the air blowing connector. The gas carries the chips out from the chip discharge groove, thereby automatically cleaning the grinding chips.

[0020] In summary, this application includes at least one of the following beneficial technical effects:

[0021] 1. By using positioning blocks, when deburring injection molded parts, the large end, small end, and hanging ear of the injection molded part are inserted into three positioning holes respectively. The three grinding components deburr the large end, small end, and hanging ear of the injection molded part respectively, thereby improving the efficiency of deburring injection molded parts.

[0022] 2. Using the oblong hole, the mounting base is fixed in the positioning groove of the base plate with the first bolt. The oblong hole allows the mounting base to slide in the positioning groove, thereby allowing the position of the grinding head to be adjusted.

[0023] 3. The positioning block is fixed inside the upright plate by the positioning rod. After removing the positioning rod, the positioning block can be removed from the upright plate, which makes it convenient to repair or replace the positioning block. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the tooling for trimming the burrs on the injection molded parts of this application.

[0025] Figure 2 This is a partially exploded view of the tooling for trimming the burrs on the injection molded part of this application, to highlight the positioning holes;

[0026] Figure 3 This is a partial exploded view of the tooling for trimming the burrs on the injection molded parts of this application, to highlight the grinding components;

[0027] Figure 4 This is a cross-sectional view of the overall structure of the tooling for trimming the burrs on the injection molded parts of this application.

[0028] Reference numerals: 1. Base plate; 2. Vertical plate; 3. Positioning block; 4. Positioning hole; 5. Grinding assembly; 51. Mounting base; 52. Drive component; 53. Pressure block; 54. Grinding head; 6. Injection molded part; 7. Positioning groove; 8. Waist-shaped hole; 9. First bolt; 10. Reinforcing plate; 11. Second bolt; 12. Positioning rod; 13. Baffle; 14. Partition plate; 15. Sealed cavity; 16. Air blowing connector; 17. Chip removal groove; 18. Limiting rod. Detailed Implementation

[0029] The following is in conjunction with the appendix Figures 1-4 This application will be described in further detail.

[0030] This application discloses a tooling for trimming burrs on injection molded parts.

[0031] Reference Figure 1 and Figure 2 A tooling for trimming the burrs of injection molded parts includes a base plate 1. A vertical plate 2 is fixedly installed on one side of the base plate 1 in the width direction by bolts. Three positioning blocks 3 are placed at equal intervals along the length direction of the vertical plate 2. Each positioning block 3 has a positioning hole 4. The large end, small end and hanging ear of the injection molded part 6 can be inserted into the three positioning holes 4 respectively.

[0032] Six positioning rods 12 are inserted into the upright plate 2. The bottom end of the positioning rods 12 is inserted into the base plate 1. Every two positioning rods 12 pass through a positioning block 3 along both sides of the positioning hole 4. The positioning rods 12 are used to install and fix the positioning block 3, thereby facilitating the disassembly and replacement of the positioning block 3.

[0033] Reference Figure 3 and Figure 4 Three grinding components 5 are installed at equal intervals along the length of the base plate 1, and each of the three grinding components 5 corresponds to one of the three positioning blocks 3. The grinding component 5 includes a mounting base 51, a driving component 52, a pressure block 53, and a grinding head 54. Three positioning grooves 7 are equally spaced along the length of the base plate 1, and the positioning grooves 7 are opened along the width of the base plate 1, with the opening on the side away from the vertical plate 2.

[0034] Three mounting bases 51 are slidably installed in three positioning slots 7. Each mounting base 51 has a slotted hole 8 at one of its four corners. A first bolt 9 is installed in each of the four slotted holes 8, passing through the slotted holes 8 and threaded into the base plate 1. A reinforcing plate 10 is bolted to the side of the base plate 1 away from the vertical plate 2. Three second bolts 11 pass through the reinforcing plate 10, inserting into the three positioning slots 7 and threaded into the three mounting bases 51. The first bolts 9 and second bolts 11 secure the mounting bases 51, while the slotted holes 8 allow the mounting bases 51 to slide and adjust their position within the positioning slots 7.

[0035] The drive unit 52 is placed on the mounting base 51, and the grinding head 54 is fixedly mounted on the drive end of the drive unit 52. The clamping block 53 is fixedly mounted on the mounting base 51 by bolts, and the clamping block 53 and the mounting base 51 clamp and fix the drive unit 52. In this application, the drive unit 52 can be selected as a servo motor, and the drive unit 52 uses a safe voltage of 24V. The three drive units 52 can be independently speed-adjusted, thus making it suitable for repairing different types of burrs.

[0036] When deburring the injection molded part 6, the large end, small end, and hanging lug of the injection molded part 6 are inserted into the three positioning holes 4 respectively. The drive component 52 drives the grinding head 54 to rotate, and the three grinding heads 54 deburr the large end, small end, and hanging lug of the injection molded part 6 respectively, thereby improving the efficiency of deburring the injection molded part 6. At the same time, when deburring different injection molded parts, by replacing the positioning block 3 with the grinding head 54, the deburring fixture can be used to deburr different injection molded parts.

[0037] Two limiting rods 18 are detachably inserted into the side wall of the upright plate 2 away from the base plate 1. When the large end and small end of the injection molded part 6 are inserted into the positioning hole 4, the limiting rods 18 are inserted into the hanging ears of the injection molded part 6, so that the injection molded part 6 will not rotate during the grinding process, thereby improving the grinding effect.

[0038] A baffle 13 is bolted to the base plate 1, covering the vertical plate 2 and three grinding components 5. A partition 14 is fixedly installed inside the baffle 13, and all three grinding heads 54 pass through the partition 14. The baffle 13, partition 14, vertical plate 2 and base plate 1 form a sealed chamber. Three air blowing connectors 16 are installed on the baffle 13, which correspond to three positioning blocks 3 and communicate with the sealed chamber. A chip removal groove 17 is provided on the base plate 1, which communicates with the sealed chamber.

[0039] When trimming burrs, using the baffle 13 to shield the work area can prevent grinding chips from flying. The baffle 13 and the baffle plate form a sealed chamber. The air supply equipment introduces air into the sealed chamber through the air blowing connector 16. The airflow will carry the chips out along the chip discharge groove 17, realizing automatic cleaning of grinding chips. In addition, there is a filter screen structure at the discharge port of the chip discharge groove 17 to collect the chips.

[0040] The implementation principle of the deburring fixture for injection molded parts in this application embodiment is as follows: When deburring the injection molded part 6, the large end, small end and hanging ear of the injection molded part 6 are respectively inserted into three positioning holes 4. The driving component 52 drives the grinding head 54 to rotate. The three grinding heads 54 respectively deburr the large end, small end and hanging ear of the injection molded part 6, thereby improving the efficiency of deburring the injection molded part 6.

[0041] The above are merely optional embodiments of this disclosure and are not intended to limit this disclosure. Various modifications and variations can be made to this disclosure by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure should be included within the scope of protection of this disclosure.

Claims

1. A tooling for trimming burrs on injection molded parts, characterized in that: Includes a base plate (1), on which a vertical plate (2) is provided, and three positioning blocks (3) are provided in the vertical plate (2). Positioning holes (4) are provided in the positioning blocks (3). The three positioning holes (4) are respectively used to place the large end, small end and hanging ear of the injection molded part (6). Three grinding components (5) are provided on the base plate (1). The three grinding components (5) correspond to the three positioning blocks (3) and respectively deburr the large end, small end and hanging ear of the injection molded part (6).

2. The tooling for trimming burrs on injection molded parts according to claim 1, characterized in that: The grinding assembly (5) includes a mounting base (51), a driving component (52), a pressure block (53), and a grinding head (54). The mounting base (51) is mounted on the base plate (1), the driving component (52) is mounted on the mounting base (51), the pressure block (53) is mounted on the mounting base (51) and presses the driving component (52) against it, and the grinding head (54) is located at the driving end of the driving component (52).

3. The tooling for trimming burrs on injection molded parts according to claim 2, characterized in that: The base plate (1) has three positioning grooves (7), and the three mounting seats (51) are slidably disposed in the three positioning grooves (7). The mounting seats (51) have multiple waist-shaped holes (8), and the mounting seats (51) are provided with a first bolt (9) passing through the waist-shaped holes (8). The first bolt (9) is threaded and fixed in the base plate (1).

4. The tooling for trimming burrs on injection molded parts according to claim 2, characterized in that: A reinforcing plate (10) is provided on the side of the base plate (1) away from the upright plate (2). Three second bolts (11) are provided in the reinforcing plate (10), and the three second bolts (11) are threadedly fixed to the three mounting seats (51) respectively.

5. The tooling for trimming burrs on injection molded parts according to claim 1, characterized in that: The positioning block (3) is detachably installed inside the upright plate (2), and six positioning rods (12) are inserted inside the upright plate (2), with every two positioning rods (12) passing through one positioning block (3).

6. The tooling for trimming burrs on injection molded parts according to claim 1, characterized in that: A baffle (13) is provided on the base plate (1), and the baffle (13) covers the vertical plate (2) and the grinding assembly (5).

7. The tooling for trimming burrs on injection molded parts according to claim 6, characterized in that: The baffle (13) is provided with a partition (14), and a sealed cavity (15) is formed between the partition (14) and the upright plate (2). The baffle (13) is provided with an air blowing connector (16) that communicates with the sealed cavity (15). The bottom plate (1) is provided with a chip discharge groove (17) that communicates with the sealed cavity (15).

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