Edge trimming device for injection molding parts

Abstract

The utility model discloses an injection-molded part edge trimming device, which relates to the technical field of injection-molded part trimming, and comprises a rack, an adjusting plate and a trimming component are slidably mounted on the rack, the trimming component is mounted on the adjusting plate, the trimming component is provided with two groups of mutually symmetrical trimming parts, and each trimming part is provided with a grinding wheel and an adjusting part. The adjusting part is installed on the machine frame and comprises a base, the base is composed of a middle shaft and arc seats installed at the two ends of the middle shaft, each arc seat is provided with an arc face and a top table, the top table is arranged on the base, the two ends of the top table are provided with arc grooves matched with the arc faces of the arc seats, the clamping mechanism is installed on the top table, and the clamping mechanism is provided with two sets of abutting blocks. The two abutting blocks are suitable for getting close to or getting away from each other. According to the edge trimming device for the injection molding part, the problem that the injection molding part is inconvenient to adjust in the clamping process is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molded parts, in particular to an edge trimming device for injection molded parts. Background Art

[0002] Injection molded parts are parts produced by injection molding process, which are usually made of plastic materials. In the production process of injection molded parts, plastic materials are injected through the mold, so traces of contact with the mold or burrs are formed on the edges. For this reason, edge trimming devices are required to trim the edges of injection molded parts.

[0003] For example, the patent with publication number CN218019701U specifically discloses an injection molding trimming device, which includes a fixed frame, a clamping mechanism is arranged on the fixed frame, the clamping mechanism has an upper fixed table and a lower fixed table, a cutting mechanism for trimming the injection molding is arranged on the fixed frame, the cutting mechanism has a fixed plate and a cutting knife installed on the fixed plate, and the upper fixed table is installed on the fixed plate;

[0004] In the above-mentioned patent disclosure, the trimming device mainly clamps the injection molded parts by cooperating with the upper fixing table and the lower fixing table, and after the injection molded parts are fixed, the cutting knife trims the injection molded parts;

[0005] However, in the actual use of the above-mentioned trimming device, due to the different shapes of the injection molded parts, the edges of the injection molded parts are not the same. When trimming different injection molded parts, the above-mentioned trimming device uses the upper fixed platform and the lower fixed platform to clamp the injection molded parts up and down, so that during the process of clamping the injection molded parts, the clamping mechanism cannot adjust the position of the injection molded parts;

[0006] If the position of the injection molded part needs to be adjusted, the upper fixed platform and the lower fixed platform need to be separated to relax the injection molded part, and then the position of the injection molded part can be adjusted. However, the above method is inconvenient and greatly reduces the trimming efficiency of the injection molded parts. Therefore, it is necessary to provide an edge trimming device for injection molded parts to solve the above problem. Utility Model Content

[0007] The utility model aims to provide a device for trimming the edge of an injection molded part, which solves the problem of inconvenient adjustment during the clamping process of the injection molded part.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a device for trimming the edges of injection molded parts, comprising a frame, an adjusting plate slidably mounted on the frame, a trimming assembly, the trimming assembly being mounted on the adjusting plate, the trimming assembly having two sets of trimming parts symmetrical to each other, the trimming part having a grinding wheel, an adjusting part, the adjusting part being mounted on the frame, the adjusting part comprising a base, the base consisting of a central axis, and an arc seat mounted at both ends of the central axis, the arc seat having an arc surface, a top platform, the top platform being arranged on the base, arc grooves matching the arc surface of the arc seat being formed at both ends of the top platform, a clamping mechanism, the clamping mechanism being mounted on the top platform, the clamping mechanism having two sets of abutment blocks, the two sets of abutment blocks being suitable for approaching or moving away from each other, the top platform being suitable for sliding under the cooperation of the arc groove and the arc surface, and the table top of the top platform being flipped to adjust the angle of the injection molded part.

[0009] Furthermore, a worm wheel is fixedly mounted on the central shaft, a worm is mounted on the bearing on the top platform, and the worm wheel is meshed with the worm.

[0010] Furthermore, the clamping mechanism includes a base and a slider slidably installed in the base, and the resistance block is arranged on the top of the base.

[0011] Furthermore, the base bearing is installed with a double-headed screw, and both ends of the double-headed screw have positive and negative threads of equal length, and the two groups of sliding blocks are respectively threadedly connected to the two ends of the double-headed screw.

[0012] Furthermore, the dressing part includes a base slidably mounted on the adjustment plate, and a first motor mounted on the base, and the grinding wheel is connected to an output end of the first motor.

[0013] Furthermore, a driving unit is provided on one side of the pedestal, and the driving unit includes two groups of racks, which are respectively fixed to the sides of the two groups of pedestals, and the two groups of racks are arranged diagonally, and a gear is meshed between the two groups of racks, and the gear is connected to a second motor.

[0014] Compared with the prior art, the beneficial effect of the utility model is that through the cooperation of the worm and the worm wheel, the top platform is driven to slide along the arc surface of the arc seat, and the table top of the top platform is flipped, which indirectly drives the angle of the injection molded parts on the clamping mechanism to tilt, thereby achieving the purpose of adjusting the injection molded parts in the clamping state and solving the problem of inconvenient adjustment of the injection molded parts during the clamping process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is an overall schematic diagram of a device for trimming the edge of an injection molded part in the present application;

[0016] Figure 2 for Figure 1 A schematic diagram of the structure of the middle trimming assembly;

[0017] Figure 3 for Figure 1 The enlarged schematic diagram of point A in the middle;

[0018] Figure 4 for Figure 3 A schematic cross-sectional view of a middle adjustment portion;

[0019] Among them, the reference numerals in the figure are:

[0020] 1. Frame; 11. Adjustment plate; 12. Cylinder; 2. Trimming assembly; 21. First motor; 22. Grinding wheel; 23. Base; 24. Drive unit; 241. Rack; 242. Second motor; 243. Gear; 3. Clamping mechanism; 31. Base; 32. Slider; 33. Double-headed screw; 4. Adjustment part; 41. Base; 411. Middle axis; 412. Arc seat; 42. Top platform; 43. Worm; 44. Worm wheel. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] like Figure 1-Figure 2 As shown, the present application provides an edge trimming device for injection molded parts, comprising a frame 1, and an adjusting plate 11 slidably mounted on the frame 1, and the adjusting plate 11 is suitable for moving up and down on the frame 1, and a cylinder 12 is mounted on the top of the frame 1, and the output end of the cylinder 12 is fixedly connected to the adjusting plate 11, so that the cylinder 12 can drive the adjusting plate 11 to move up and down;

[0023] A trimming assembly 2 is installed on the adjustment plate 11, and the trimming assembly 2 is used to perform trimming operations on injection molded parts. The trimming assembly 2 has two sets of symmetrical trimming parts, and the trimming parts include a base 23 slidably installed on the adjustment plate 11, and a first motor 21 fixedly installed on the base 23, and a grinding wheel 22 is fixed on the output end of the first motor 21, and the grinding wheel 22 is located at the bottom of the base 23, wherein the two sets of bases 23 are suitable for approaching or moving away from each other, and indirectly drive the two sets of grinding wheels 22 to move synchronously, so as to achieve the purpose of trimming both sides of injection molded parts of different widths;

[0024] A driving unit 24 is provided on one side of the two groups of pedestals 23, and the driving unit 24 includes two groups of racks 241 and a second motor 242, wherein the two groups of racks 241 are respectively fixed on the sides of the two groups of pedestals 23, and the two groups of racks 241 are arranged diagonally, the second motor 242 is installed on the adjustment plate 11 and is located on one side of the racks 241, and the output end of the second motor 242 is connected to a gear 243, the gear 243 is located between the two groups of racks 241, and the two groups of racks 241 are meshed with the gear 243, when the second motor 242 drives the gear 243 to rotate, through the mutual meshing action of the gear 243 and the rack 241, the two groups of racks 241 are close to or away from each other, and indirectly drive the two groups of pedestals 23 to move synchronously, so as to achieve the purpose of adjusting the distance between the two groups of grinding wheels 22;

[0025] like Figure 1 and Figure 3-Figure 4 As shown, a clamping mechanism 3 is arranged on the frame 1 and directly below the grinding wheel 22. The clamping mechanism 3 is used to clamp the injection molded parts. The clamping mechanism 3 includes a base 31. The base 31 is a frame structure, and two groups of sliders 32 are slidably installed in the base 31. The two groups of sliders 32 are suitable for sliding in the base 31, and a resistance block (not marked in the figure) is arranged on the top of each group of sliders 32. The two groups of resistance blocks are arranged oppositely, and the two groups of resistance blocks can be moved closer to or away from each other under the action of the sliders 32.

[0026] At the same time, a double-headed screw 33 is mounted on the base 31, and both ends of the double-headed screw 33 have positive and negative threads, and both ends of the double-headed screw 33 are respectively threadedly connected with the two sets of sliders 32, so that when the double-headed screw 33 rotates, the two sets of sliders 32 can move closer to or away from each other, and indirectly drive the abutment block to move synchronously, thereby achieving the purpose of clamping the injection molded parts;

[0027] An adjusting part 4 is provided at the bottom of the clamping mechanism 3, and the adjusting part 4 is fixedly mounted on the frame 1. The adjusting part 4 includes a base 41, and the base 41 is composed of a central axis 411 and arc seats 412 fixed at both ends of the central axis 411. The arc seat 412 has an arc surface, and a top platform 42 is provided on the base 41, and the base 31 is fixed on the top platform 42;

[0028] The top platform 42 has an arc groove (not shown) at the bottom thereof adapted to the arc surface, and both ends of the arc groove of the top platform 42 are slidably connected to two sets of arc seats 412, so that the top platform 42 is suitable for sliding along the arc surface and flipping at a certain angle;

[0029] At the same time, a worm wheel 44 is fixed on the central axis 411, and a worm 43 is passed through the side wall of the top platform 42, and the bearing of the worm 43 is installed on the top platform 42, so that the worm 43 is suitable for rotation, and the worm 43 and the worm wheel 44 are meshed with each other, so that when the worm 43 rotates, the top platform 42 slides along the arc surface through the cooperation of the worm 43 and the worm wheel 44, so that the table surface of the top platform 42 is tilted, and indirectly drives the injection molded parts on the clamping mechanism 3 to tilt, thereby achieving the purpose of adjusting the angle of the injection molded parts;

[0030] When trimming the edges of injection molded parts, the injection molded parts are placed between the two sets of abutment blocks, and under the action of the double-headed screw 33, the two sets of sliders 32 are driven to clamp and fix the injection molded parts, and at the same time, the second motor 242 is driven to drive the gear 243 to rotate, and the spacing between the two sets of grinding wheels 22 is adjusted under the cooperation of the two sets of racks 241 and the gear 243, and then the two sets of grinding wheels 22 are driven by the cylinder 12 to approach the injection molded parts to perform trimming operations on the injection molded parts;

[0031] When the injection molded part needs to be adjusted, the cylinder 12 is started to drive the trimming assembly 2 on the adjustment plate 11 away from the injection molded part, and the worm 43 is rotated at the same time. Under the cooperation of the worm 43 and the worm wheel 44, the top platform 42 is driven to slide along the arc surface of the arc seat 412, so that the table top of the top platform 42 is turned over;

[0032] To sum up, through the cooperation of the worm 43 and the worm wheel 44, the top platform 42 is driven to slide along the arc surface of the arc seat 412, and the table top of the top platform 42 is flipped, which indirectly drives the angle of the injection molded parts on the clamping mechanism 3 to tilt, thereby achieving the purpose of adjusting the injection molded parts in the clamping state and solving the problem of inconvenient adjustment of the injection molded parts during the clamping process.

[0033] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A device for trimming the edge of injection molded parts, characterized in that: The trimming device comprises: A frame (1), on which an adjustment plate (11) is slidably mounted; A trimming assembly (2), the trimming assembly (2) being mounted on the adjustment plate (11), the trimming assembly (2) comprising two sets of mutually symmetrical trimming parts, the trimming parts comprising a grinding wheel (22); An adjusting part (4), the adjusting part (4) being mounted on the frame (1), the adjusting part (4) comprising: A base (41), the base (41) comprising a central axis (411) and arc seats (412) mounted on both ends of the central axis (411), the arc seats (412) having an arc surface; A top platform (42), the top platform (42) being arranged on the base (41), and arc grooves matching the arc surface of the arc seat (412) are formed at two ends of the top platform (42); A clamping mechanism (3), the clamping mechanism (3) being mounted on the top platform (42), the clamping mechanism (3) having two groups of abutment blocks, the two groups of abutment blocks being suitable for moving closer to or farther away from each other; Wherein: the top platform (42) is suitable for sliding under the cooperation of the arc groove and the arc surface, and the table surface of the top platform (42) is turned over to adjust the angle of the injection molded part.

2. The device for trimming the edge of injection molded parts according to claim 1, characterized in that: A worm wheel (44) is fixedly mounted on the central shaft (411), a worm (43) is mounted on a bearing on the top platform (42), and the worm wheel (44) is meshed with the worm (43).

3. The device for trimming the edge of injection molded parts according to claim 2, characterized in that: The clamping mechanism (3) comprises a base (31) and a sliding block (32) slidably mounted in the base (31), and the abutment block is arranged on the top of the base (31).

4. The device for trimming the edge of injection molded parts according to claim 3, characterized in that: The base (31) is bearing-mounted with a double-headed screw (33), both ends of which have positive and negative threads, and the two groups of sliders (32) are respectively threadedly connected to the two ends of the double-headed screw (33).

5. The device for trimming the edge of injection molded parts according to claim 1, characterized in that: The dressing part comprises a base (23) slidably mounted on the adjustment plate (11), and a first motor (21) mounted on the base (23), and the grinding wheel (22) is connected to an output end of the first motor (21).

6. The device for trimming the edge of injection molded parts according to claim 5, characterized in that: A driving unit (24) is provided on one side of the pedestal (23), and the driving unit (24) comprises two groups of racks (241). The two groups of racks (241) are respectively fixed to the sides of the two groups of pedestals (23), and the two groups of racks (241) are arranged diagonally opposite to each other. A gear (243) is meshed between the two sets of racks (241), and the gear (243) is connected to a second motor (242).

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