Burr trimming device for long-edge injection molded part
By designing a burr trimming device for injection molding parts including a support table, a cutting knife and a limit, the problem of difficult trimming of injection molding parts is solved, the stable cutting of injection molding parts and the quality of finished products is improved, and the waste rate is reduced and production costs.
Patent Information
- Application Number
- CN202420269083.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-04
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-02-04
AI Technical Summary
During the injection molding process, the burrs are difficult to effectively trim due to deviations in raw material ratio and equipment accuracy. The existing utility knife cutting methods are inefficient and are prone to damage the finished product, resulting in a decrease in yield.
A long-side injection molding device is designed, including a support table, a vertically arranged cutting knife, limiting part and adjustment mechanism to ensure the stable limiting and position control of the injection molding parts during the cutting process, and through adjustment The screw and the rotor achieve precise adjustment of the cutting knife to avoid accidental injuries caused by hand shaking.
It improves the quality of finished products of injection molded parts, reduces the scrap rate, saves production costs, and ensures stable cutting and removal of burrs.
Smart Images
Figure CN222201348U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of mechanical equipment, and more specifically, to a device for trimming burrs of long-side injection molded parts. Background Art
[0002] Injection molding usually involves injecting molten material into a mold, and then the desired product can be obtained after cooling and solidification.
[0003] There are usually many types of injection molded products and molds. In the existing injection molding process, burrs will appear on the finished injection molded products due to the ratio of raw materials, deviation in equipment accuracy and other reasons. The burrs usually need to be trimmed in time to achieve the required product quality. In the existing technology, such burrs are usually treated by cutting with a utility knife. The blade of the utility knife needs to be turned away from the operator and force needs to be applied. When the injection molded part is relatively long as a whole and the operator is not experienced in operation, not only multiple cuttings are required, but the finished injection molded part is also easily cut off or scratched, which reduces the yield in the production process. Therefore, a structure is provided to solve the problem that the burrs of some existing long strip injection molded parts are difficult to trim.
[0004] Therefore, a new solution needs to be proposed to solve this problem. Utility Model Content
[0005] In view of the deficiencies in the prior art, the utility model aims to provide a device for trimming burrs of long-side injection molded parts.
[0006] The above technical purpose of the utility model is achieved through the following technical scheme: the long-side injection molded part burr trimming device includes a support platform, a limiting portion and a cutting knife are provided on the top surface of the support platform, the cutting knife is vertically arranged and its blade is located below it, and a cutting groove for the cutting knife to penetrate is opened on the top surface of the support platform, and the blade of the cutting knife can be abutted against the groove wall of the cutting groove close to the limiting portion.
[0007] The utility model is further configured as follows: a limiting surface facing the end surface of the cutting knife is provided on the limiting portion, and the distance from the limiting surface to the cutting knife is adjustable.
[0008] The utility model is further configured as follows: the limiting part includes a limiting plate slidably connected to the support platform, a limiting block is fixedly connected to the top surface of the support platform away from the cutting knife, and an adjusting screw rotatably connected to the limiting plate is threadedly connected to the limiting block.
[0009] The utility model is further configured as follows: a rotating wheel is fixedly connected to the adjusting screw rod at the side away from the limiting plate.
[0010] The utility model is further configured as follows: a symmetrically arranged T-shaped guide rail is fixedly connected to the top surface of the support platform, a T-shaped slide groove sleeved on the outside of the T-shaped guide rail is opened at the bottom of the limit plate, and an insertion groove is surrounded between the bottom of the limit plate and the support platform.
[0011] The utility model is further configured as follows: a cutting opening is arranged between the cutting knife and the table surface of the supporting platform, and a force for maintaining the cutting opening open is arranged between the supporting platform and the cutting knife.
[0012] The utility model is further configured as follows: an articulated seat hinged to the cutting knife is fixedly connected to the support platform, a gear is fixedly connected to the cutting knife located on one side of the articulated seat, a support seat is fixedly connected to the support platform, a rack is vertically slidably connected to the support seat and passes through the cutting groove and meshes with the gear, a sliding rod is fixedly connected to the top of the rack, a sliding groove is provided on the support seat for the sliding rod to penetrate and slide, an elastic member is sleeved on the sliding rod, whose two ends respectively abut against the rack and the support seat, and a limiting plate is fixedly connected to the top of the sliding rod.
[0013] The utility model is further configured as follows: the support seat is provided with a guide groove for the rack to penetrate and slide.
[0014] In summary, the utility model has the following beneficial effects:
[0015] With the help of the set limit part, the position of the injection molded part can be stably limited, ensuring that the injection molded part remains in a relatively fixed position during the cutting process of the cutting knife, thereby ensuring that the cutting knife can better cut the burrs from the injection molded part. At the same time, it can also avoid the injection molded part being cut due to hand shaking during the cutting process. While improving the quality of the finished injection molded parts, it can also reduce the scrap rate in the injection molded parts production process, thereby saving more production costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a structural schematic diagram of the utility model;
[0017] Figure 2 for Figure 1 The enlarged view of point A in the middle;
[0018] Figure 3 It is a cross-sectional view of the utility model;
[0019] Figure 4 for Figure 3 Enlarged view of point B in the middle.
[0020] In the figure: 1. support table; 2. cutting knife; 3. cutting groove; 4. limiting surface; 5. limiting plate; 6. limiting block; 7. adjusting screw; 8. rotating wheel; 9. T-shaped guide rail; 10. T-shaped slide groove; 11. insertion groove; 12. cutting opening; 13. hinge seat; 14. gear; 15. support seat; 16. rack; 17. sliding rod; 18. sliding groove; 19. elastic member; 20. limiting piece; 21. guide groove. DETAILED DESCRIPTION
[0021] The utility model is described in detail below in conjunction with the accompanying drawings and embodiments.
[0022] The long side injection molded part burr trimming device, such as Figure 1 As shown, it includes a support platform 1, a limiting portion and a cutting knife 2 are provided on the top surface of the support platform 1, and a handle is fixedly connected to one end of the cutting knife 2 in the length direction by welding. The support platform 1 is used to achieve stable support and limiting effects on various parts and injection molded parts, ensuring that the cleaning process and cleaning effect of the burrs on the injection molded parts are more stable, and the limiting portion can be used to achieve stable limiting of the position of the injection molded parts, ensuring that the injection molded parts are kept in a relatively fixed position during the cutting process of the cutting knife 2, thereby ensuring that the cutting knife 2 can better cut the burrs from the injection molded parts, and at the same time, it can also avoid the situation where the injection molded parts are cut due to hand shaking during the cutting process, thereby improving the quality of the finished injection molded parts and reducing the scrap rate in the production process of the injection molded parts, thereby saving more production costs;
[0023] like Figure 1 As shown, the cutting knife 2 is arranged vertically and its blade is located below it. A cutting groove 3 for the cutting knife 2 to penetrate is opened on the top surface of the support platform 1. The arranged cutting groove 3 is used to provide a stable giving way effect for the cutting process of the cutting knife 2, thereby ensuring that the cutting knife 2 can better cut the burrs from the injection molded part. The blade of the cutting knife 2 can be abutted against the groove wall of the cutting groove 3 close to the side of the limiting part. When cutting, the joint between the injection molded part and the burrs is at the groove wall of the cutting groove 3 close to the side of the limiting part. This arrangement ensures that the blade of the cutting groove 3 can better cut the burrs from the injection molded part when the cutting knife 2 moves downward.
[0024] like Figure 1 As shown, the limiting part is provided with a limiting surface 4 facing the end face of the cutting knife 2, and the distance from the limiting surface 4 to the cutting knife 2 is adjustable. This arrangement ensures that the distance between the limiting surface 4 and the cutting knife 2 can be adjusted according to the size of the injection molded parts as a whole, thereby ensuring that the limiting part can achieve stable support and limiting effects on injection molded parts of different sizes, thereby ensuring that the overall structure has better versatility, and the stable limiting of the position of the injection molded part is achieved by the offset between the limiting surface 4 and the injection molded part, thereby achieving stable cutting of the burrs on the injection molded part.
[0025] like Figure 1 The limiting part includes a limiting plate 5 slidably connected to the support platform 1, and a limiting block 6 is fixedly connected to the top surface of the support platform 1 on the side away from the cutting knife 2 by welding. The limiting block 6 is threadedly connected with an adjusting screw 7 rotatably connected to the limiting plate 5, and the adjusting screw 7 on the side away from the limiting plate 5 is fixedly connected with a rotating wheel 8 by welding. The setting of the rotating wheel 8 utilizes the principle of labor-saving lever. The user can better drive the adjusting screw 7 to rotate with the help of the set rotating wheel 8. Through the threaded connection between the adjusting screw 7 and the limiting block 6, the position of the adjusting screw 7 on the limiting block 6 can be adjusted during the rotation of the adjusting screw 7, and then the limiting plate 5 rotatably connected to it is driven to slide by the adjusting screw 7, so as to realize the stable adjustment of the position of the limiting plate 5. The limiting surface 4 is located on the limiting plate 5, and the stable adjustment of the position of the limiting surface 4 is realized by adjusting the position of the limiting plate 5.
[0026] like Figure 1 and Figure 2 The bottom of the limit plate 5 is provided with a T-shaped slot 10 which is sleeved on the outside of the T-shaped slot 9. A penetration groove 11 is arranged between the bottom of the limit plate 5 and the support platform 1, and the burr passes through the limit plate 5 with the help of the formed penetration groove 11, thereby ensuring that the limit plate 5 can stably press against the injection molded part and realize stable limiting of the injection molded part, ensuring that the limit plate 5 can realize stable limiting of the position of the injection molded part, and the T-shaped slot 10 is sleeved on the T-shaped slot 10 to realize the stable sliding connection between the limit plate 5 and the support platform 1 as a whole. At the same time, the T-shaped guide rail 9 can realize the stable guiding and limiting effect of the sliding process of the limit plate 5, ensuring that the adjustment process of the position of the limit plate 5 is more stable, and a cutting opening 12 is arranged between the cutting knife 2 and the table surface of the support platform 1, and the formed cutting opening 12 is used for the burr to penetrate, and then the cutting knife 2 can be used to stably realize the cutting and removal of the burr.
[0027] like Figure 1 , Figure 3 and Figure 4As shown, the support platform 1 is fixedly connected with an articulated seat 13 hinged to the cutting knife 2 by welding, and the cutting knife 2 realizes a stable connection process with the support platform 1 by the intersection with the articulated seat 13. The cutting knife 2 rotates around the articulated seat 13, so that the cutting knife 2 can be kept relatively fixed and stable, thereby ensuring that the cutting knife 2 can better realize stable cutting and removal of burrs on the injection molded parts. The cutting knife 2 located on one side of the articulated seat 13 is fixedly connected with a gear 14 by welding. The gear 14 is rotatably connected to the articulated seat 13, and the cutting knife 2 is connected to the articulated seat 13 through the gear 14. The support platform 1 is fixedly connected with a support seat 15 by welding, a rack 16 which penetrates into the cutting groove 3 and meshes with the gear 14 is vertically slidably connected to the support seat 15, a sliding rod 17 is fixedly connected to the top of the rack 16 by welding, a sliding groove 18 is provided on the support seat 15 for the sliding rod 17 to penetrate and slide, and the cross-sectional shapes of the sliding rod 17 and the sliding groove 18 are both set to be rectangular, which ensures that the sliding rod 17 can only slide in the sliding groove 18 and cannot rotate in the sliding groove 18, ensuring that the sliding process of the sliding rod 17 and the engineering of guiding the sliding and transmission of the rack 16 are more stable and smooth.
[0028] like Figure 1 , Figure 3 and Figure 4 As shown, an elastic member 19 is sleeved on the sliding rod 17, and its two ends are respectively against the rack 16 and the support seat 15. The elastic member 19 is set as a spring, and the length of the elastic member 19 is greater than the distance from the top surface of the rack 16 to the support seat 15. This setting ensures that the elastic member 19 is always in a squeezed and deformed state. The elastic force generated by the elastic deformation of the elastic member 19 can slide the rack 16 downward. During the sliding process of the rack 16, the gear 14 meshing with it will be driven to rotate. The rotation of the gear 14 drives the cutting knife 2 to open the cutting opening 12, thereby keeping the cutting opening 12 in an open state, so that The process of opening the cutting knife 2 is omitted in the process of cutting the burrs, making the use of the overall structure more convenient. The top of the sliding rod 17 is fixedly connected to the limiting plate 20 by welding. The limiting plate 20 is used to achieve stable limiting of the position of the sliding rod 17 and the rack 16. A guide groove 21 for the rack 16 to penetrate and slide is provided on the support seat 15. This arrangement increases the contact area of the connection between the rack 16 and the support seat 15, thereby achieving stable guidance of the sliding process of the rack 16, ensuring that the sliding of the rack 16 and the rotation of the gear 14 are smoother and smoother.
[0029] Working principle: The distance between the limit plate 5 and the cutting blade 2 is adjusted according to the size of the injection molded part. The rotation of the rotating wheel 8 drives the adjusting screw 7 to rotate. The rotation of the adjusting screw 7 drives the limit plate 5 to slide, thereby adjusting the position of the limit plate 5. One side of the injection molded part is fitted with the limit plate 5. The burr on the side close to the limit plate 5 passes through the limit plate 5 from the insertion groove 11, and the burr on the other side passes through the cutting opening 12. In this process, the elastic force generated by the elastic member 19 of the elastic deformation pushes the limit plate 5 to the limit plate 5. The movable rack 16 moves downward, and the movement of the rack 16 drives the gear 14 to rotate. The rotation of the gear 14 drives the cutting knife 2 to bend upward and open the cutting opening 12. The cutting knife 2 is driven by the handle to approach the burr and penetrate into the cutting groove 3. In this process, the gear 14 drives the rack 16 to move upward, and the rack 16 and the support seat 15 realize the extrusion deformation of the elastic member 19. When the force on the cutting knife 2 is removed, the cutting knife 2 will be gradually reset under the action of the elastic force generated by the elastic deformed elastic member 19.
[0030] The above is only a preferred embodiment of the present invention. 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 burrs of long-side injection molded parts, comprising a support platform (1), Features: A limiting portion and a cutting knife (2) are provided on the top surface of the support platform (1); the cutting knife (2) is arranged vertically and its blade is located below it; a cutting groove (3) for the cutting knife (2) to penetrate is provided on the top surface of the support platform (1); the blade of the cutting knife (2) can abut against the groove wall of the cutting groove (3) on the side close to the limiting portion.
2. The device for trimming burrs of long-side injection molded parts according to claim 1, Features: The limiting portion is provided with a limiting surface (4) facing the end surface of the cutting knife (2), and the distance between the limiting surface (4) and the cutting knife (2) is adjustable.
3. The device for trimming the burrs of long-side injection molded parts according to claim 2, Features: The limiting portion comprises a limiting plate (5) slidably connected to the support platform (1); a limiting block (6) is fixedly connected to the top surface of the support platform (1) on the side away from the cutting knife (2); and an adjusting screw (7) is threadedly connected to the limiting block (6) and is rotatably connected to the limiting plate (5).
4. The device for trimming burrs of long-side injection molded parts according to claim 3, Features: A rotating wheel (8) is fixedly connected to the adjusting screw (7) on the side away from the limiting plate (5).
5. The device for trimming burrs of long-side injection molded parts according to claim 3, Features: A symmetrically arranged T-shaped guide rail (9) is fixedly connected to the top surface of the support platform (1), a T-shaped slide groove (10) sleeved on the outside of the T-shaped guide rail (9) is provided at the bottom of the limit plate (5), and a penetration groove (11) is arranged between the bottom of the limit plate (5) and the support platform (1).
6. The device for trimming burrs of long-side injection molded parts according to claim 1, Features: A cutting opening (12) is arranged between the cutting knife (2) and the table surface of the support platform (1), and a force for maintaining the cutting opening (12) open is arranged between the support platform (1) and the cutting knife (2).
7. The device for trimming burrs of long-side injection molded parts according to claim 6, Features: The support platform (1) is fixedly connected with an articulated seat (13) which is hinged to the cutting knife (2); the cutting knife (2) located on one side of the articulated seat (13) is fixedly connected with a gear (14); the support platform (1) is fixedly connected with a support seat (15); the support seat (15) is vertically slidably connected with a rack (16) which passes into the cutting groove (3) and meshes with the gear (14); the top of the rack (16) is fixedly connected with a sliding rod (17); the support seat (15) is provided with a sliding groove (18) for the sliding rod (17) to pass through and slide; the sliding rod (17) is sleeved with an elastic member (19) whose two ends respectively abut against the rack (16) and the support seat (15); the top of the sliding rod (17) is fixedly connected with a limiting plate (20).
8. The device for trimming burrs of long-side injection molded parts according to claim 7, Features: The support seat (15) is provided with a guide groove (21) for the rack (16) to penetrate and slide.