Device and method for treating subsequent burrs of injection molding product

Abstract

The invention belongs to the technical field of plastic product processing, and discloses an injection molding product subsequent burr treatment device and a treatment method thereof.The injection molding product subsequent burr treatment device comprises a treatment mechanism, and the treatment mechanism comprises a sliding frame, a cutter, a first rack, a first gear, a supporting frame, a push plate, a second gear, a cam and a first elastic part; the invention discloses a treatment method for subsequent burrs of an injection molding product. The treatment method comprises the following steps: S1, firstly, fixing a hydraulic cylinder and an external frame; through cooperation of the cutter, the cam and other structures, burrs are scraped conveniently, the cutter can be driven to move in the direction close to the burrs in the upward moving process of the upper mold, the burrs which are not completely hardened are scraped, meanwhile, the cutter is vibrated through rotation of the cam, and the burrs are scraped. And the connecting structure of the burrs and the product main body can be more effectively damaged through vibration, the device is particularly suitable for semi-cured or high-toughness plastic burrs, and the burr residue or wiredrawing phenomenon caused by pure scraping is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of plastic product processing, and in particular relates to a subsequent burr processing device for injection molded products and a processing method thereof. Background Art

[0002] Injection molding, as the mainstream process for modern plastic product production, is widely used in many fields such as automotive parts, 3C electronic products, power tools, garden tools, medical equipment, household appliances, and fitness equipment because it can quickly and accurately produce products with complex shapes and precise dimensions. However, during the injection molding process, burrs are very likely to appear on the edges and parting surfaces of the product due to factors such as mold closing gap, uneven injection pressure, and differences in material fluidity. These burrs not only affect the appearance quality of the product, but may also cause dimensional deviations and scratch other components during subsequent assembly.

[0003] At present, the traditional methods for processing burrs of injection molded products mainly include manual trimming and mechanical trimming. Manual trimming relies on workers to use tools such as knives and sandpaper to manually remove burrs. Although this method can ensure a certain processing accuracy, it is extremely inefficient and labor-intensive, and there are manual operation errors, making it difficult to ensure the consistency of product quality. At the same time, labor costs continue to increase with the rise in labor costs; mechanical trimming usually uses punching, grinding and other methods. Although the efficiency is improved, it is prone to excessive cutting that leads to product damage, or incomplete processing, so improvements are being made. Summary of the Invention

[0004] In order to solve the problems raised in the above background technology, the present invention provides a subsequent burr processing device and processing method for injection molded products.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a device for processing subsequent burrs of injection-molded products, comprising a lower mold mechanism, and further comprising:

[0006] a processing mechanism, the processing mechanism being located above the upper mold mechanism;

[0007] The cam is a member of a group of movable parts, and the movable part is a group of movable parts in a forward direction, and the movable part has a round shank and a round shank to move relative to each other, thereby making the movable part have a round shank and a round shank as the supporting element.

[0008] Preferably, the cutter is elastically connected to the first rack through a first elastic member, the side of the cam is against the side of the cutter away from the first elastic member, the second gear is located below the cutter, and the push plate is located below the second gear, and the first elastic member is used to buffer the impact force applied to the cutter by the cam.

[0009] Preferably, an upper mold mechanism is provided above the lower mold mechanism, and the upper mold mechanism is located on the side of the processing mechanism. The upper mold mechanism includes a hydraulic cylinder, the bottom of the hydraulic cylinder is slidably connected to a hydraulic rod, the bottom of the hydraulic rod is fixedly connected to the upper mold, the top of the upper mold is provided with a plurality of material delivery pipes, the bottom of the upper mold is provided with a plurality of injection ports, the bottom of the upper mold is provided with a positioning block, and the side of the upper mold is fixedly connected to a second rack, and the second rack is used to drive the sliding frame to move.

[0010] Preferably, several of the feed pipes are respectively connected to several injection ports, the second rack is located on the side of the upper mold close to the first rack, the second rack is located below the first gear, the first rack is located between the second rack and the upper mold, and the sliding frame and cutter are both located on the side of the upper mold.

[0011] Preferably, the lower mold mechanism includes a lower mold, the top of the lower mold is provided with a plurality of injection grooves, the interior of the lower mold is provided with a plurality of heat dissipation grooves, the interior of the heat dissipation grooves is provided with an air valve, the side of the lower mold is provided with a radiator, the top of the lower mold is provided with two first slide grooves, the side of the lower mold is provided with a second slide groove, the interior of the second slide groove is provided with a plurality of teeth, the top of the lower mold is provided with a groove, and the teeth are used to drive the second gear to rotate.

[0012] Preferably, the injection groove is located inside the heat dissipation groove, the air valve is located between the heat dissipation groove and the injection groove, the size of the upper mold is adapted to the size of the lower mold, and the bottom of the upper mold is clamped with the top of the lower mold through a positioning block.

[0013] Preferably, the sliding frame is located above the radiator, the bottom of the sliding frame is slidably connected to the first slide groove, the second slide groove is located on the side of the upper mold, the second gear is located inside the second slide groove and slidably connected thereto, the side of the second gear is rotatably connected to the teeth, the second gear and the cam are both located above the second slide groove, and the push plate is fixedly connected to the inner wall of the second slide groove.

[0014] Preferably, an air jet mechanism is provided inside the lower mold mechanism, the air jet mechanism includes an airbag, a second elastic member is provided inside the airbag, an elastic air supply pipe is provided in the opening direction of the airbag, an air guide groove is provided inside the cutter, and a plurality of air outlet holes are evenly provided on the side of the cutter away from the sliding frame, and the air outlet holes are used to initially cool and shape the plastic product.

[0015] Preferably, several of the air outlet holes are communicated with the air guide groove, the air bag is fixedly connected to the inner wall of the lower mold, the end of the air bag away from the elastic air pipe is fixedly connected to the push plate, the end of the air bag away from the push plate is fixedly connected to the inner wall of the second slide groove, the inner wall of the air bag is elastically connected to the inner wall of the second slide groove through the second elastic member, the elastic air pipe is located inside the groove, the end of the elastic air pipe away from the air bag is fixedly connected to the side of the cutter away from the first rack, the interior of the air bag is communicated with the interior of the air guide groove through the elastic air pipe, and the air outlet holes are used to clean the burrs scraped off by the cutter.

[0016] A method for treating subsequent burrs of injection-molded products, the method being as follows:

[0017] S1. First, the hydraulic cylinder is fixed to the external frame, and the feed pipe is connected to the injection molding machine. Then, the injection molding machine is started to perform injection molding inside the injection tank through the feed pipe and the injection port. Then, cold air is injected into the heat dissipation tank through the radiator to initially cool and shape the plastic product. The hydraulic cylinder drives the hydraulic rod to move the upper mold upward to separate the upper mold from the lower mold. At the same time, the air valve is opened to allow the airflow in the heat dissipation tank to flow into the injection molding tank. The airflow is used to simply demould the plastic product and separate it from the inner wall of the injection molding tank. At this time, the burr on the top of the plastic product will be slightly higher than the top of the lower mold.

[0018] When the second rack moves upward, it drives the first gear to rotate as the second rack moves upward. The rotation of the first gear drives the first rack meshed with it to drive the sliding frame to move in the direction close to the lower mold, so that the cutter moves in the direction close to the burr, scraping the burr that has not yet fully hardened, facilitating the removal of the burr. In the process of movement of the sliding frame, the second gear is driven by the support frame to slide inside the second slide groove. Because the second gear is meshed with the teeth, the second gear sliding will rotate under the action of the teeth, driving the cam to rotate. When the protruding part on the cam rotates to abut against the cutter, it pushes the cutter to move in the direction close to the first elastic member, squeezing the first elastic member. When the protruding position on the cam rotates to release the abutment against the cutter, the cutter will reset under the action of the elastic force of the first elastic member. This cycle causes the cutter to vibrate.

[0019] S3. At the same time, the movement of the support frame drives the push plate to squeeze the airbag, compressing the air in the airbag and the second elastic member, so that the air in the airbag enters the air guide groove through the elastic air pipe and is finally ejected from the air outlet, immediately blowing away the burrs and debris scraped off by the cutter.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The present invention facilitates scraping off burrs by providing a cutter and a cam and other structures. During the upward movement of the upper mold, the cutter is driven to move in a direction close to the burr, so as to scrape off the burr that has not yet fully hardened. At the same time, the cutter is vibrated by the rotation of the cam, and the vibration can more effectively destroy the connection structure between the burr and the product body. It is particularly suitable for semi-cured or tough plastic burrs, reducing burr residue or wire drawing caused by simple scraping. At the same time, the vibration increases the lateral cutting force on the basis of the direct impact, thereby improving the speed and effect of burr treatment.

[0022] The present invention facilitates the cleaning of the cutter by arranging the cooperation of structures such as the air bag and the air outlet hole. The movement of the support frame will drive the push plate to squeeze the air bag, compressing the air in the air bag and the second elastic member, so that the air in the air bag enters the air guide groove through the elastic air supply pipe and is finally ejected from the air outlet hole, which can immediately blow away the burrs and debris scraped off by the cutter, avoiding the accumulation of debris on the cutter or product surface, affecting the subsequent processing quality, and the air flow cleaning can reduce the contact between the cutter and the debris, prevent the burrs from adhering to the cutter surface, and extend the service life of the tool, while the automatic air flow cleaning reduces the frequency of manual cleaning of burrs and debris, and improves the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the structural relationship between the second rack and the first gear of the present invention;

[0025] Figure 3 Schematic diagram of the cross-sectional structure of the lower mold mechanism of the present invention;

[0026] Figure 4 This is a schematic diagram of the structural relationship between the elastic gas pipe and the groove of the present invention;

[0027] Figure 5 This is a schematic diagram of the structural relationship between the elastic gas pipe and the cutter of the present invention;

[0028] Figure 6 Schematic diagram of the cross-sectional structure of the jet mechanism of the present invention;

[0029] Figure 7 It is a bottom view structural diagram of the processing mechanism of the present invention.

[0030] In the figure: 1. processing mechanism; 101. sliding frame; 102. cutter; 103. first rack; 104. first gear; 105. supporting frame; 106. push plate; 107. second gear; 108. cam; 109. first elastic member; 2. upper mold mechanism; 201. hydraulic cylinder; 202. hydraulic rod; 203. upper mold; 204. feed pipe; 205. injection port; 206. positioning block; 207. second rack; 3. lower mold mechanism; 301. lower mold; 302. injection groove; 303. heat dissipation groove; 304. air valve; 305. radiator; 306. first slide groove; 307. second slide groove; 308. teeth; 309. groove; 4. jet mechanism; 401. air bag; 402. second elastic member; 403. elastic air delivery pipe; 404. air guide groove; 405. air outlet. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments 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.

[0032] like Figures 1 to 7 As shown, the present invention provides a subsequent burr processing device for injection molded products, including a lower mold mechanism 3, and further comprising:

[0033] Processing mechanism 1, processing mechanism 1 is located above the upper mold mechanism 2;

[0034] Among them, the processing mechanism 1 includes a sliding frame 101, a cutter 102, a first rack 103, a first gear 104, a support frame 105, a push plate 106, a second gear 107, a cam 108 and a first elastic member 109. The sliding frame 101 is slidably connected to the cutter 102 for processing burrs, the side of the sliding frame 101 is fixedly connected to the first rack 103, and the bottom of the first rack 103 is engaged with the first gear 104. The side of the sliding frame 101 away from the first rack 103 is fixedly connected to the support frame 105, the bottom of the support frame 105 is fixedly connected to the push plate 106, the side of the support frame 105 is rotatably connected to the second gear 107, the top of the second gear 107 is fixedly connected to the cam 108, and a first elastic member 109 is arranged between the cutter 102 and the first rack 103.

[0035] The cutter 102 is elastically connected to the first rack 103 through the first elastic member 109 , and the side of the cam 108 abuts against the side of the cutter 102 away from the first elastic member 109 . The second gear 107 is located below the cutter 102 , and the push plate 106 is located below the second gear 107 .

[0036] An upper mold mechanism 2 is arranged above the lower mold mechanism 3, and the upper mold mechanism 2 is located on the side of the processing mechanism 1. The upper mold mechanism 2 includes a hydraulic cylinder 201, and the bottom of the hydraulic cylinder 201 is slidably connected to a hydraulic rod 202, and the bottom of the hydraulic rod 202 is fixedly connected to an upper mold 203. A plurality of material delivery pipes 204 are arranged on the top of the upper mold 203, and a plurality of injection ports 205 are arranged at the bottom of the upper mold 203. A positioning block 206 is arranged at the bottom of the upper mold 203, and a second rack 207 is fixedly connected to the side of the upper mold 203.

[0037] The lower mold mechanism 3 includes a lower mold 301, a plurality of injection grooves 302 are provided on the top of the lower mold 301, a plurality of heat dissipation grooves 303 are provided inside the lower mold 301, an air valve 304 is provided inside the heat dissipation groove 303, a radiator 305 is provided on the side of the lower mold 301, two first slide grooves 306 are provided on the top of the lower mold 301, a second slide groove 307 is provided on the side of the lower mold 301, a plurality of teeth 308 are provided inside the second slide groove 307, and a groove 309 is provided on the top of the lower mold 301.

[0038] The above solution is adopted: by setting the cooperation of structures such as the cutter 102 and the cam 108, it is convenient to scrape off the burrs. When the upper mold 203 moves upward, the second rack 207 will be driven upward. When the second rack 207 moves up to a position where it meshes with the side of the first gear 104, it will drive the first gear 104 to rotate as the second rack 207 moves upward. The rotation of the first gear 104 will drive the first rack 103 meshed with it to drive the sliding frame 101 to move in the direction close to the lower mold 301, so that the cutter 102 moves in the direction close to the burrs, and the burrs that have not been completely hardened are scraped off, which is convenient for removing the burrs. At the same time, during the movement of the sliding frame 101, the second gear 107 will be driven to slide inside the second slide groove 307, and because the second gear 107 is meshed with the teeth 308, Therefore, the sliding of the second gear 107 will rotate under the action of the teeth 308, driving the cam 108 to rotate. When the protruding part on the cam 108 rotates to abut against the cutter 102, it will push the cutter 102 to move in the direction close to the first elastic member 109, squeezing the first elastic member 109. When the protruding position on the cam 108 rotates to release the abutment against the cutter 102, the cutter 102 will reset under the elastic force of the first elastic member 109. This cycle causes the cutter 102 to vibrate, and the vibration can more effectively destroy the connection structure between the burr and the product body, which is especially suitable for semi-cured or tough plastic burrs, reducing burr residue or drawing caused by simple scraping. At the same time, vibration increases the lateral cutting force on the basis of direct impact, thereby improving the speed and effect of burr processing.

[0039] like Figures 4 to 6As shown, several feeding pipes 204 are respectively connected to several injection ports 205, the second rack 207 is located on the side of the upper mold 203 close to the first rack 103, the second rack 207 is located below the first gear 104, the first rack 103 is located between the second rack 207 and the upper mold 203, and the sliding frame 101 and the cutter 102 are both located on the side of the upper mold 203.

[0040] The injection groove 302 is located inside the heat dissipation groove 303, the air valve 304 is located between the heat dissipation groove 303 and the injection groove 302, the size of the upper mold 203 is adapted to the size of the lower mold 301, the bottom of the upper mold 203 is clamped with the top of the lower mold 301 through the positioning block 206, the sliding frame 101 is located above the radiator 305, and the bottom of the sliding frame 101 is slidingly connected to the first slide groove 306, the second slide groove 307 is located on the side of the upper mold 203, the second gear 107 is located inside the second slide groove 307 and is slidingly connected thereto, the side of the second gear 107 is rotatably connected to the teeth 308, the second gear 107 and the cam 108 are both located above the second slide groove 307, and the push plate 106 is fixedly connected to the inner wall of the second slide groove 307.

[0041] An air jet mechanism 4 is provided inside the lower mold mechanism 3, and the air jet mechanism 4 includes an air bag 401. A second elastic member 402 is provided inside the air bag 401. An elastic air supply pipe 403 is provided in the opening direction of the air bag 401. An air guide groove 404 is provided inside the cutter 102. A plurality of air outlet holes 405 are evenly provided on the side of the cutter 102 away from the sliding frame 101.

[0042] Several air outlet holes 405 are communicated with the air guide groove 404, the airbag 401 is fixedly connected to the inner wall of the lower mold 301, the end of the airbag 401 away from the elastic air pipe 403 is fixedly connected to the push plate 106, the end of the airbag 401 away from the push plate 106 is fixedly connected to the inner wall of the second slide groove 307, the inner wall of the airbag 401 is elastically connected to the inner wall of the second slide groove 307 through the second elastic member 402, the elastic air pipe 403 is located inside the groove 309, the end of the elastic air pipe 403 away from the airbag 401 is fixedly connected to the side of the cutter 102 away from the first rack 103, and the interior of the airbag 401 is communicated with the interior of the air guide groove 404 through the elastic air pipe 403.

[0043] The above scheme is adopted: by setting the coordination of structures such as the air bag 401 and the air outlet hole 405, it is convenient to clean the cutter 102. The movement of the support frame 105 will drive the push plate 106 to squeeze the air bag 401, compress the air in the air bag 401 and the second elastic member 402, so that the air in the air bag 401 enters the inside of the air guide groove 404 through the elastic air supply pipe 403, and finally sprays out from the air outlet hole 405, which can immediately blow away the burrs and debris scraped off by the cutter 102, avoiding the accumulation of debris on the cutter 102 or the product surface, affecting the subsequent processing quality, and airflow cleaning can reduce the contact between the cutter 102 and the debris, prevent the burrs from adhering to the surface of the cutter 102, and extend the service life of the tool, and automatic airflow cleaning reduces the frequency of manual cleaning of burrs and debris, thereby improving processing efficiency.

[0044] A method for treating subsequent burrs of injection molded products, the method is as follows:

[0045] S1. First, the hydraulic cylinder 201 is fixed to the external frame, and the feed pipe 204 is connected to the injection molding machine. Then, the injection molding machine is started to perform injection molding inside the injection tank 302 through the feed pipe 204 and the injection port 205. Subsequently, cold air is injected into the heat dissipation tank 303 through the radiator 305 to initially cool and shape the plastic product. The hydraulic cylinder 201 is used to make the hydraulic rod 202 drive the upper mold 203 upward to separate the upper mold 203 from the lower mold 301. At the same time, the air valve 304 is opened to allow the airflow in the heat dissipation tank 303 to flow into the injection tank 302. The airflow is used to simply demould the plastic product and separate it from the inner wall of the injection tank 302. At this time, the burr on the top of the plastic product will be slightly higher than the top of the lower mold 301.

[0046] S2. As the upper mold 203 moves upward, the second rack 207 is driven upward. When the second rack 207 moves upward to a position where it meshes with the side of the first gear 104, the first gear 104 is driven to rotate as the second rack 207 moves upward. The rotation of the first gear 104 drives the first rack 103 meshed with it to drive the slide 101 toward the direction close to the lower mold 301, so that the cutter 102 moves toward the direction close to the burr, scraping off the burr that has not been completely hardened, so as to facilitate the removal of the burr. In addition, during the movement of the slide 101, the second rack 207 is driven by the support frame 105. The wheel 107 slides inside the second slide groove 307. Because the second gear 107 is engaged with the teeth 308, the sliding of the second gear 107 will cause the teeth 308 to rotate, driving the cam 108 to rotate. When the protruding portion of the cam 108 rotates to abut against the cutter 102, it pushes the cutter 102 toward the first elastic member 109, squeezing the first elastic member 109. When the protruding portion of the cam 108 rotates to release the abutment against the cutter 102, the cutter 102 will return to its original position under the elastic force of the first elastic member 109. This cycle causes the cutter 102 to vibrate.

[0047] S3. At the same time, the movement of the support frame 105 drives the push plate 106 to squeeze the airbag 401, compressing the air in the airbag 401 and the second elastic member 402, so that the air in the airbag 401 enters the interior of the air guide groove 404 through the elastic air delivery pipe 403, and finally sprays out from the air outlet 405, immediately blowing away the burrs and debris scraped off by the cutter 102.

[0048] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0049] While embodiments of the present invention have been shown and described, it will be appreciated 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 invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A device for processing subsequent burrs of injection-molded products, comprising a lower mold mechanism (3), characterized in that: Also includes: A processing mechanism (1), wherein the processing mechanism (1) is located above the upper mold mechanism (2); The processing mechanism (1) comprises a sliding frame (101), a cutter (102), a first rack (103), a first gear (104), a support frame (105), a push plate (106), a second gear (107), a cam (108) and a first elastic member (109); the sliding frame (101) is slidably connected to the cutter (102) for processing burrs; the side of the sliding frame (101) is fixedly connected to the first rack (103); the lower end of the first rack (103) is fixed to the lower end of the first rack (103); The sliding frame (101) is meshed with the first gear (104), the side of the sliding frame (101) away from the first rack (103) is fixedly connected to a support frame (105), the bottom of the support frame (105) is fixedly connected to a push plate (106), the side of the support frame (105) is rotatably connected to a second gear (107), the top of the second gear (107) is fixedly connected to a cam (108), and a first elastic member (109) is provided between the cutter (102) and the first rack (103).

2. The subsequent burr treatment device for injection molded products according to claim 1, characterized in that: The cutter (102) is elastically connected to the first rack (103) via a first elastic member (109); the side surface of the cam (108) abuts against the side of the cutter (102) away from the first elastic member (109); the second gear (107) is located below the cutter (102); and the push plate (106) is located below the second gear (107).

3. The subsequent burr treatment device for injection molded products according to claim 1, characterized in that: An upper mold mechanism (2) is provided above the lower mold mechanism (3), and the upper mold mechanism (2) is located on the side of the processing mechanism (1). The upper mold mechanism (2) comprises a hydraulic cylinder (201), the bottom of the hydraulic cylinder (201) is slidably connected to a hydraulic rod (202), the bottom of the hydraulic rod (202) is fixedly connected to an upper mold (203), a plurality of material delivery pipes (204) are provided on the top of the upper mold (203), a plurality of injection ports (205) are provided on the bottom of the upper mold (203), a positioning block (206) is provided on the bottom of the upper mold (203), and a second rack (207) is fixedly connected to the side of the upper mold (203).

4. The subsequent burr treatment device for injection molded products according to claim 3, characterized in that: Several of the feed pipes (204) are respectively connected to several injection ports (205); the second rack (207) is located on a side of the upper mold (203) close to the first rack (103); the second rack (207) is located below the first gear (104); the first rack (103) is located between the second rack (207) and the upper mold (203); and the sliding frame (101) and the cutter (102) are both located on the side of the upper mold (203).

5. The subsequent burr treatment device for injection molded products according to claim 3, characterized in that: The lower mold mechanism (3) comprises a lower mold (301), a plurality of injection grooves (302) are provided on the top of the lower mold (301), a plurality of heat dissipation grooves (303) are provided inside the lower mold (301), an air valve (304) is provided inside the heat dissipation groove (303), a radiator (305) is provided on the side of the lower mold (301), two first slide grooves (306) are provided on the top of the lower mold (301), a second slide groove (307) is provided on the side of the lower mold (301), a plurality of teeth (308) are provided inside the second slide groove (307), and a groove (309) is provided on the top of the lower mold (301).

6. The subsequent burr treatment device for injection molded products according to claim 5, characterized in that: The injection molding groove (302) is located inside the heat dissipation groove (303), the air valve (304) is located between the heat dissipation groove (303) and the injection molding groove (302), the size of the upper mold (203) is adapted to the size of the lower mold (301), and the bottom of the upper mold (203) is clamped with the top of the lower mold (301) through a positioning block (206).

7. The subsequent burr treatment device for injection molded products according to claim 5, characterized in that: The sliding frame (101) is located above the radiator (305), the bottom of the sliding frame (101) is slidably connected to the first slide groove (306), the second slide groove (307) is located on the side of the upper mold (203), the second gear (107) is located inside the second slide groove (307) and is slidably connected thereto, the side of the second gear (107) is rotatably connected to the teeth (308), the second gear (107) and the cam (108) are both located above the second slide groove (307), and the push plate (106) is fixedly connected to the inner wall of the second slide groove (307).

8. The subsequent burr treatment device for injection molded products according to claim 5, characterized in that: An air jet mechanism (4) is provided inside the lower mold mechanism (3), and the air jet mechanism (4) includes an air bag (401). A second elastic member (402) is provided inside the air bag (401), and an elastic air delivery pipe (403) is provided in the opening direction of the air bag (401). An air guide groove (404) is provided inside the cutter (102), and a plurality of air outlet holes (405) are evenly provided on a side of the cutter (102) away from the sliding frame (101).

9. The subsequent burr treatment device for injection molded products according to claim 8, characterized in that: Several of the air outlet holes (405) are communicated with the air guide groove (404), the air bag (401) is fixedly connected to the inner wall of the lower mold (301), the end of the air bag (401) away from the elastic air pipe (403) is fixedly connected to the push plate (106), the end of the air bag (401) away from the push plate (106) is fixedly connected to the inner wall of the second slide groove (307), the inner wall of the air bag (401) is elastically connected to the inner wall of the second slide groove (307) through the second elastic member (402), the elastic air pipe (403) is located inside the groove (309), the end of the elastic air pipe (403) away from the air bag (401) is fixedly connected to the side of the cutter (102) away from the first rack (103), and the interior of the air bag (401) is communicated with the interior of the air guide groove (404) through the elastic air pipe (403).

10. A method for processing subsequent burrs of injection molded products, applied to a device for processing subsequent burrs of injection molded products according to any one of claims 1 to 9, characterized in that: The processing method is as follows: S1, first, the hydraulic cylinder (201) is fixed to the external frame, and the feeding pipe (204) is connected to the injection molding machine, and then the injection molding machine is started to perform injection molding inside the injection molding groove (302) through the feeding pipe (204) and the injection port (205), and then cold air is injected into the heat dissipation groove (303) through the radiator (305) to preliminarily cool and shape the plastic product, and the hydraulic rod (202) is driven by the hydraulic cylinder (201) to move the upper mold (203) upward, so that the upper mold (203) is separated from the lower mold (301), and at the same time, the air valve (304) is opened to allow the air flow in the heat dissipation groove (303) to flow into the injection molding groove (302), and the plastic product is simply demoulded by the air flow, so that it is separated from the inner wall of the injection molding groove (302), and at this time, the burr on the top of the plastic product will be slightly higher than the top of the lower mold (301); S2. During the upward movement of the upper mold (203), the second rack (207) is driven upward. When the second rack (207) moves upward to a position where it meshes with the side of the first gear (104), the first gear (104) is driven to rotate as the second rack (207) moves upward. The rotation of the first gear (104) drives the first rack (103) meshed therewith to drive the sliding frame (101) to move toward the lower mold (301), so that the cutter (102) moves toward the burr, scraping off the burr that has not been completely hardened, so as to facilitate the removal of the burr. In addition, during the movement of the sliding frame (101), the second gear (103) is driven through the support frame (105). 7) Sliding inside the second slide groove (307), and because the second gear (107) is engaged with the teeth (308), the second gear (107) slides and rotates under the action of the teeth (308), driving the cam (108) to rotate. When the protruding portion on the cam (108) rotates to abut against the cutter (102), it pushes the cutter (102) to move toward the first elastic member (109), squeezing the first elastic member (109). When the protruding portion on the cam (108) rotates to release the abutment with the cutter (102), the cutter (102) is reset under the action of the elastic force of the first elastic member (109). This cycle causes the cutter (102) to vibrate. S3. Simultaneously, the movement of the support frame (105) drives the push plate (106) to squeeze the airbag (401), compressing the air in the airbag (401) and the second elastic member (402), so that the air in the airbag (401) enters the interior of the air guide groove (404) through the elastic air delivery pipe (403), and finally ejects from the air outlet (405), instantly blowing away the burrs scraped off by the cutter (102).

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