Surface treatment device for injection molded part

Abstract

The utility model discloses a surface treatment device for an injection molded part, which belongs to the technical field of injection molding processing and comprises a bottom plate and a support plate fixedly connected onto the bottom plate. The pruning machine further comprises an inner supporting type rotary supporting mechanism and a pressing pruning limiting mechanism. The top end of the supporting plate is provided with a pressing trimming limiting mechanism. The inner supporting type rotary supporting mechanism comprises an upper fan-shaped block, a lower fan-shaped block, a rotary assembly and a sliding limiting assembly. Four upper fan-shaped blocks which are arranged in a circumferential mode are arranged on the lower side of the downward-pressing trimming limiting mechanism, the four upper fan-shaped blocks are fixedly connected with four lower fan-shaped blocks respectively, the upper fan-shaped blocks and the lower fan-shaped blocks are of a step structure, the lower ends of the four lower fan-shaped blocks are connected with four sliding limiting assemblies respectively, and the lower ends of the four sliding limiting assemblies are connected with a rotating assembly. Through the mode, under the action of the downward-pressing trimming limiting mechanism and the upper fan-shaped block, a workpiece is automatically limited, the workpiece is rotated through the rotating assembly, and the workpiece is trimmed under the action of the downward-pressing trimming limiting mechanism.

Description

Technical Field

[0001] This utility model relates to the field of injection molding technology, and specifically to a surface treatment device for injection molded parts. Background Technology

[0002] Injection molding is a commonly used technique for industrial product design. After injection molding, the surface of the injection molded part usually needs to be treated. For some small injection molded parts, multiple injection molded parts can be deburred by freezing. For hard ring-shaped injection molded parts, industrial practice generally involves single edge trimming.

[0003] Patent document CN213860287U discloses a rubber ring trimming device, including a worktable, a drive motor, a linkage mechanism, a sleeve, and an air jet head. The drive motor is mounted on the upper left side of the worktable, and a turntable is fixed to the output end of the drive motor. A fixing plate is tightly fitted to the right side of the turntable, and a sleeve is integrally formed on the outer side of the fixing plate. A connecting plate is tightly fitted to the right side of the fixing plate. A material discharge groove is formed inside the worktable. This rubber ring trimming device can assemble and disassemble the sleeve according to rubber ring bodies of different sizes, can limit the rubber ring body, and can shield the debris generated during trimming, ensuring debris collection. However, this solution still has the following problems to be solved:

[0004] This solution involves placing the annular injection molded part on a sleeve with a limiting function, which makes it difficult to place the annular injection molded part. For rigid annular injection molded parts, which have a certain degree of hardness, this solution is not suitable. Furthermore, when trimming the edges, this solution only trims the sides of the annular injection molded part, and cannot trim the burrs at the top of the annular injection molded part.

[0005] Based on this, the present invention designs a surface treatment device for injection molded parts to solve the above problems. Utility Model Content

[0006] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a surface treatment device for injection molded parts.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A surface treatment device for injection molded parts includes a base plate and a support plate fixedly connected to the base plate; it also includes an internal support rotating support mechanism and a downward pressure trimming limiting mechanism; the downward pressure trimming limiting mechanism is provided at the top of the support plate, and is used to limit and trim the workpiece; the internal support rotating support mechanism includes an upper sector block, a lower sector block, a rotating component, and a sliding limiting component; four upper sector blocks arranged in a circle are provided on the lower side of the downward pressure trimming limiting mechanism, the four upper sector blocks are fixedly connected to four lower sector blocks respectively, and the upper and lower sector blocks have a stepped structure; the lower ends of the four lower sector blocks are respectively connected to four sliding limiting components, the sliding limiting components are used to limit the movement of the upper and lower sector blocks on a horizontal plane, and the lower ends of the four sliding limiting components are connected to the rotating component, the rotating component is used to rotate the upper sector blocks, the lower sector blocks, and the sliding limiting components;

[0009] Furthermore, the rotating assembly includes a motor and a turntable; the lower end of the base plate is fixedly connected to the motor, the output shaft of the motor is fixedly connected to the turntable, and the turntable is rotatably connected to the upper end of the base plate.

[0010] Furthermore, the sliding limit assembly includes a slider, a slide rail, a baffle, and a spring; the lower end of the lower sector block is fixedly connected to the slider, the slider is slidably connected to the slide rail, the slide rail is fixedly connected to the turntable, the end of the slide rail away from the motor is fixedly connected to the baffle, and the two ends of the slider and the baffle are respectively fixedly connected to the two ends of the spring.

[0011] Furthermore, the downward pressing trimming limiting mechanism includes a pressing component, a trimming component, a fixing component, and a roller limiting component; the pressing component is connected to the top plate of the support plate and is used to move downward to move the upper fan-shaped block; the fixing component is connected to the top plate of the support plate and is used to limit the pressing component; the trimming component is connected to the pressing component and is used to trim the side and top of the annular injection molded part; the roller limiting component is connected to the trimming component and is used to limit the annular injection molded part.

[0012] Furthermore, the pressing assembly includes a push cylinder and a pressing block; the top of the support plate is fixedly connected to the push cylinder, the bottom of the output shaft of the push cylinder is rotatably connected to one end of the pressing block, and the other end of the pressing block is conical, used to make the four upper fan-shaped blocks move in a direction away from the motor.

[0013] Furthermore, the trimming assembly includes a connecting tube, a front connecting rod, a rear connecting rod, a side cutter, a top cutter, and a swivel block; the connecting tube is sleeved on the output shaft of the push cylinder and is fixedly connected to the output shaft of the push cylinder; the upper end of the connecting tube is fixedly connected to one end of the front connecting rod and one end of the rear connecting rod in the front and rear directions, respectively; the other end of the rear connecting rod is fixedly connected to the top cutter; the top cutter is used to trim the top of the annular injection molded part; the other end of the front connecting rod is slidably connected to the side cutter; the front end of the front connecting rod is threadedly connected to the swivel block; the swivel block is used to fix the side cutter on the front connecting rod.

[0014] Furthermore, the fixing assembly includes a fixing ring and fixing rods; the fixing ring is slidably connected to the lower end of the connecting pipe, and one end of the two symmetrical fixing rods is fixedly connected to the fixing ring, while the other end of the fixing rods is fixedly connected to the top of the support plate.

[0015] Furthermore, the roller limiting assembly includes a roller, a connecting plate, a sliding spring unit, and a connecting rod; two sets of symmetrical roller limiting assemblies are installed on the upper end of the connecting tube in the left and right directions; one end of the connecting rod is fixedly connected to the upper end of the connecting tube, and the other end of the connecting rod is connected to the sliding spring unit; the sliding spring unit is fixedly connected to the upper end of the connecting plate; the sliding spring unit is used to make the connecting plate slide and reset; and the lower end of the connecting plate is rotatably connected to the roller.

[0016] Compared with the prior art, the advantages of this utility model are as follows: 1. By using the action of the downward trimming limiting mechanism and the upper fan-shaped block, the annular injection molded part is automatically limited, and the annular injection molded part is rotated by the rotating component, and the edge of the annular injection molded part is trimmed under the action of the downward trimming limiting mechanism.

[0017] 2. The ring-shaped injection molded part is initially positioned by the cooperation of the pressure block and the upper fan-shaped block, and then the ring-shaped injection molded part is fixed by the cooperation of the rollers, which increases the accuracy of trimming. By adjusting the rotating block, the side cutter can completely trim the side of the ring-shaped injection molded part, and the top cutter trims the top of the ring-shaped injection molded part. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This utility model provides a three-dimensional surface treatment device for injection molded parts. Figure 1 ;

[0020] Figure 2 This is a front view of a surface treatment device for injection molded parts according to the present invention;

[0021] Figure 3 This utility model provides a three-dimensional surface treatment device for injection molded parts. Figure 2 ;

[0022] Figure 4 A structural diagram of the trimming assembly, the fixing assembly, and the roller limiting assembly;

[0023] Figure 5 for Figure 3 Enlarged view of point A in the middle;

[0024] Figure 6 This is a structural diagram of the upper sector block, the lower sector block, and the sliding limit component.

[0025] The labels in the diagram represent:

[0026] 1. Base plate; 2. Support plate; 3. Internal support rotating support mechanism; 4. Downward pressing trimming limiting mechanism; 31. Upper sector block; 32. Lower sector block; 33. Rotating assembly; 34. Sliding limiting assembly; 331. Motor; 332. Turntable; 341. Slider; 342. Slide rail; 343. Baffle; 344. Spring; 41. Downward pressing assembly; 42. Trimming assembly; 43. Fixing assembly; 44. Roller limiting assembly; 411. Push cylinder; 412. Pressing block; 421. Connecting pipe; 422. Front connecting rod; 423. Rear connecting rod; 424. Side cutter; 425. Top cutter; 426. Rotating block; 431. Fixing ring; 432. Fixing rod; 441. Roller; 442. Connecting plate; 443. Moving block; 444. Fixing block; 445. Connecting rod. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0028] The terms "left," "right," "front," "back," "up," and "down" used in the following description refer to the orientation from the perspective of the front view.

[0029] In some embodiments, please refer to the accompanying drawings. Figures 1-6 A surface treatment device for injection molded parts includes a base plate 1 and a support plate 2 fixedly connected to the base plate 1; it also includes an internal support rotating support mechanism 3 and a downward pressing trimming limiting mechanism 4;

[0030] The top of the support plate 2 is provided with a downward pressing and trimming limiting mechanism 4, which is used to limit and trim the workpiece.

[0031] The internal support rotating mechanism 3 includes an upper sector block 31, a lower sector block 32, a rotating component 33, and a sliding limiting component 34. The lower side of the pressing trimming limiting mechanism 4 is provided with four upper sector blocks 31 arranged in a circle. The four upper sector blocks 31 are fixedly connected to the four lower sector blocks 32 respectively. The upper sector blocks 31 and the lower sector blocks 32 have a stepped structure. The lower ends of the four lower sector blocks 32 are respectively connected to the four sliding limiting components 34. The sliding limiting components 34 are used to limit the movement of the upper sector blocks 31 and the lower sector blocks 32 on the horizontal plane. The lower ends of the four sliding limiting components 34 are connected to the rotating component 33. The rotating component 33 is used to rotate the upper sector blocks 31, the lower sector blocks 32, and the sliding limiting components 34.

[0032] In this invention, the annular injection molded part is transferred through the upper circumference formed by four upper fan-shaped blocks 31 to the lower circumference formed by four lower fan-shaped blocks 32. At this time, the diameter of the annular injection molded part is larger than the diameter of the upper circumference. The upper fan-shaped blocks 31 and the lower fan-shaped blocks 32 begin to move along the direction of the sliding limit component 34 on the horizontal plane through the downward pressing trimming and limiting mechanism 4 until the sides of the four upper fan-shaped blocks 31 contact the inner ring of the annular injection molded part. Through the action of the rotating component 33, the upper fan-shaped blocks 31, the lower fan-shaped blocks 32 and the sliding limit component 34 are driven to rotate, so that the annular injection molded part begins to rotate. Then, the annular injection molded part is trimmed by the action of the downward pressing trimming and limiting mechanism 4. After the trimming is completed, the device is reset.

[0033] In this utility model, the ring-shaped injection molded part is automatically limited by the action of the downward trimming limiting mechanism 4 and the upper fan-shaped block 31. The ring-shaped injection molded part is rotated by the rotating component 33, and the ring-shaped injection molded part is trimmed under the action of the downward trimming limiting mechanism 4.

[0034] like Figure 1 , Figure 2 and Figure 5 As shown, the rotating assembly 33 includes a motor 331 and a turntable 332; the lower end of the base plate 1 is fixedly connected to the motor 331, the output shaft of the motor 331 is fixedly connected to the turntable 332, and the turntable 332 is rotatably connected to the upper end of the base plate 1.

[0035] The sliding limit assembly 34 includes a slider 341, a slide rail 342, a baffle 343, and a spring 344; the lower end of the lower sector block 32 is fixedly connected to the slider 341, the slider 341 is slidably connected to the slide rail 342, the slide rail 342 is fixedly connected to the turntable 332, the end of the slide rail 342 away from the motor 331 is fixedly connected to the baffle 343, and the two ends of the slider 341 and the baffle 343 are respectively fixedly connected to the two ends of the spring 344.

[0036] In this utility model, the four upper sector blocks 31 move away from the motor 331 by pressing down the trimming limiting mechanism 4, which drives the lower sector block 32 and the slider 341 to move on the slide rail 342. At this time, the spring 344 is compressed until the four upper sector blocks 31 limit the annular injection molded part. Through the action of the motor 331, the turntable 332, the sliding limiting component 34, the lower sector block 32 and the upper sector block 31 are driven to rotate, so that the annular injection molded part rotates. After trimming is completed, the rotation stops, the pressing down trimming limiting mechanism 4 resets, and the lower sector block 32 and the upper sector block 31 reset under the action of the spring 344.

[0037] In this invention, the lower sector block 32 and the upper sector block 31 are reset after trimming by the action of the spring 344, and the ring injection molded part is rotated by the action of the motor 331.

[0038] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the pressing trimming limiting mechanism 4 includes a pressing component 41, a trimming component 42, a fixing component 43, and a roller limiting component 44. The pressing component 41 is connected to the top plate of the support plate 2 and is used to move downward to move the upper fan-shaped block 31. The fixing component 43 is connected to the top plate of the support plate 2 and is used to limit the pressing component 41. The trimming component 42 is connected to the pressing component 41 and is used to trim the side and top of the annular injection molded part. The roller limiting component 44 is connected to the trimming component 42 and is used to limit the annular injection molded part.

[0039] The pressing assembly 41 includes a push cylinder 411 and a pressing block 412; the top end of the support plate 2 is fixedly connected to the push cylinder 411, the bottom end of the output shaft of the push cylinder 411 is rotatably connected to one end of the pressing block 412, and the other end of the pressing block 412 is conical, which is used to make the four upper fan-shaped blocks 31 move in a direction away from the motor 331.

[0040] The trimming assembly 42 includes a connecting pipe 421, a front connecting rod 422, a rear connecting rod 423, a side cutter 424, a top cutter 425, and a swivel block 426. The connecting pipe 421 is sleeved on the output shaft of the push cylinder 411 and is fixedly connected to the output shaft of the push cylinder 411. The upper end of the connecting pipe 421 is fixedly connected to one end of the front connecting rod 422 and one end of the rear connecting rod 423 in the front and rear directions, respectively. The other end of the rear connecting rod 423 is fixedly connected to the top cutter 425. The top cutter 425 is used to trim the top of the annular injection molded part. The other end of the front connecting rod 422 is slidably connected to the side cutter 424. The front end of the front connecting rod 422 is threadedly connected to the swivel block 426. The swivel block 426 is used to fix the side cutter 424 on the front connecting rod 422.

[0041] The fixing component 43 includes a fixing ring 431 and a fixing rod 432; the fixing ring 431 is slidably connected to the lower end of the connecting pipe 421, and one end of the two symmetrical fixing rods 432 is fixedly connected to the fixing ring 431, and the other end of the fixing rod 432 is fixedly connected to the top end of the support plate 2.

[0042] The roller limiting assembly 44 includes a roller 441, a connecting plate 442, a sliding spring unit, and a connecting rod 445; the sliding spring unit includes a moving block 443 and a fixed block 444; two sets of roller limiting assemblies 44 are symmetrically installed on the upper end of the connecting pipe 421 in the left and right directions; one end of the connecting rod 445 is fixedly connected to the upper end of the connecting pipe 421, and the other end of the connecting rod 445 is fixedly connected to the fixed block 444; the fixed block 444 is sleeved on the moving block 443 and is slidably connected to the moving block 443; the upper end of the fixed block 444 is connected to the upper end of the moving block 443 by a spring; the lower end of the moving block 443 is fixedly connected to the upper end 442 of the connecting plate; and the lower end 442 of the connecting plate is rotatably connected to the roller 441.

[0043] In this invention, the push cylinder 411 drives the pressure block 412, trimming component 42, and roller limiting component 44 to move downwards. The pressure block 412 first contacts the four upper sector blocks 31, causing the four upper sector blocks 31 to move away from the motor 331, fixing the annular injection molded part to the side of the four upper sector blocks 31. At the same time, the roller 441 contacts the top of the annular injection molded part, limiting the annular injection molded part in the vertical direction. Through the action of the motor 331, the upper sector blocks 31, the annular injection molded part, and the pressure block 412 rotate. At this time, the push cylinder 411 drives the pressure block 412, trimming component 42, and roller limiting component 44 to continue moving downwards. Due to the roller... 441 is positioned at the top of the annular injection molded part, causing the spring between the fixed block 444 and the moving block 443 to tighten until the top cutter 425 contacts the top of the annular injection molded part. At this time, the side cutter 424 contacts the side of the annular injection molded part, and the top of the fixed ring 431 contacts the connecting rod 445, the front connecting rod 422, and the rear connecting rod 423. Loosen the screw block 426 so that the bottom end of the side cutter 424 contacts the bottom end of the annular injection molded part. Tighten the screw block 426, and the screw block 426 will hold the side cutter 424 in place, fixing the side cutter 424. During the rotation of the annular injection molded part, the top and side of the annular injection molded part are trimmed. After the trimming is completed, the device is reset.

[0044] In this invention, the ring-shaped injection molded part is initially positioned by the cooperation of the pressure block 412 and the upper fan-shaped block 31, and then the ring-shaped injection molded part is fixed by the cooperation of the roller 441, which increases the accuracy of trimming. By adjusting the rotating block 426, the side cutter 424 can completely trim the side of the ring-shaped injection molded part, and the top cutter 425 trims the top of the ring-shaped injection molded part.

[0045] In some embodiments, such as Figure 6 As shown, in a preferred embodiment of the present invention, a stop block is installed at the end of the slider 341 away from the motor 331. When the upper fan-shaped block 31 limits the annular injection molded part, the stop block of the slider 341 contacts the baffle 343. After the trimming is completed, the device is reset.

[0046] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A surface treatment device for injection molded parts, comprising a base plate (1) and a support plate (2) fixedly connected to the base plate (1); characterized in that: It also includes an internal support rotating support mechanism (3) and a downward pressing trimming limiting mechanism (4); the top of the support plate (2) is provided with a downward pressing trimming limiting mechanism (4), which is used to limit and trim the workpiece; the internal support rotating support mechanism (3) includes an upper fan-shaped block (31), a lower fan-shaped block (32), a rotating component (33), and a sliding limiting component (34); the lower side of the downward pressing trimming limiting mechanism (4) is provided with four upper fan-shaped blocks (31) arranged in a circle, and the four upper fan-shaped blocks (31) are respectively connected to four blocks. The lower sector block (32) is fixedly connected, and the upper sector block (31) and the lower sector block (32) have a stepped structure. The lower ends of the four lower sector blocks (32) are respectively connected to four sliding limit components (34). The sliding limit components (34) are used to limit the movement of the upper sector block (31) and the lower sector block (32) on the horizontal plane. The lower ends of the four sliding limit components (34) are connected to the rotation component (33). The rotation component (33) is used to rotate the upper sector block (31), the lower sector block (32) and the sliding limit components (34).

2. The injection molding part surface treatment apparatus according to claim 1, characterized in that, The rotating assembly (33) includes a motor (331) and a turntable (332); the lower end of the base plate (1) is fixedly connected to the motor (331), the output shaft of the motor (331) is fixedly connected to the turntable (332), and the turntable (332) is rotatably connected to the upper end of the base plate (1).

3. The injection molding part surface treatment apparatus according to claim 2, characterized in that, The sliding limit assembly (34) includes a slider (341), a slide rail (342), a baffle (343), and a spring (344); the lower end of the lower sector block (32) is fixedly connected to the slider (341), the slider (341) is slidably connected to the slide rail (342), the slide rail (342) is fixedly connected to the turntable (332), the end of the slide rail (342) away from the motor (331) is fixedly connected to the baffle (343), and the two ends of the slider (341) and the baffle (343) are respectively fixedly connected to the two ends of the spring (344).

4. The injection molding part surface treatment apparatus according to claim 1, characterized in that, The pressing trimming limiting mechanism (4) includes a pressing component (41), a trimming component (42), a fixing component (43), and a roller limiting component (44). The pressing component (41) is connected to the top plate of the support plate (2) and is used to move downward to make the upper fan-shaped block (31) move. The fixing component (43) is connected to the top plate of the support plate (2) and is used to limit the pressing component (41). The trimming component (42) is connected to the pressing component (41) and is used to trim the side and top of the workpiece. The roller limiting component (44) is connected to the trimming component (42) and is used to limit the workpiece.

5. The injection molding part surface treatment apparatus according to claim 4, characterized in that, The pressing assembly (41) includes a push cylinder (411) and a pressing block (412); the top of the support plate (2) is fixedly connected to the push cylinder (411), the bottom of the output shaft of the push cylinder (411) is rotatably connected to one end of the pressing block (412), and the other end of the pressing block (412) is conical, which is used to make the four upper fan-shaped blocks (31) move away from the motor (331).

6. The injection molding part surface treatment apparatus according to claim 5, characterized in that, The trimming assembly (42) includes a connecting pipe (421), a front connecting rod (422), a rear connecting rod (423), a side cutter (424), a top cutter (425), and a swivel block (426). The connecting pipe (421) is sleeved on the output shaft of the push cylinder (411) and is fixedly connected to the output shaft of the push cylinder (411). The upper end of the connecting pipe (421) is fixedly connected to one end of the front connecting rod (422) and one end of the rear connecting rod (423) in the front and rear directions, respectively. The other end of the rear connecting rod (423) is fixedly connected to the top cutter (425). The top cutter (425) is used to trim the top of the workpiece. The other end of the front connecting rod (422) is limited and slidably connected to the side cutter (424). The front end of the front connecting rod (422) is threadedly connected to the swivel block (426). The swivel block (426) is used to fix the side cutter (424) on the front connecting rod (422).

7. The injection molding part surface treatment apparatus according to claim 6, characterized in that, The fixing component (43) includes a fixing ring (431) and a fixing rod (432); the fixing ring (431) is slidably connected to the lower end of the connecting pipe (421), and one end of the two symmetrical fixing rods (432) is fixedly connected to the fixing ring (431), and the other end of the fixing rods (432) is fixedly connected to the top end of the support plate (2).

8. The injection molding part surface treatment apparatus according to claim 6, characterized in that, The roller limiting assembly (44) includes a roller (441), a connecting plate (442), a sliding spring unit, and a connecting rod (445); two sets of roller limiting assemblies (444) are symmetrically installed on the upper end of the connecting tube (421) in the left and right directions. One end of the connecting rod (445) is fixedly connected to the upper end of the connecting tube (421), and the other end of the connecting rod (445) is connected to the sliding spring unit. The sliding spring unit is fixedly connected to the upper end of the connecting plate (442). The sliding spring unit is used to make the connecting plate (442) slide and reset. The lower end of the connecting plate (442) is rotatably connected to the roller (441).

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