A kind of inner cavity polishing device for injection molding barrel production

Abstract

This application provides an internal cavity grinding device for injection molded barrel production, relating to the field of injection molded barrel grinding. It includes a worktable, a support mechanism mounted on the worktable, a rotating mechanism mounted on the worktable, and a hydraulic cylinder mounted on the rotating mechanism. This application addresses the problem in existing injection molded barrel internal cavity grinding devices that cannot simultaneously complete rough and fine grinding of the injection molded barrel's internal cavity, requiring the replacement of grinding heads in batches, resulting in low overall processing efficiency. This application, through a synchronous adjustment mechanism, enables the rough and fine grinding of the injection molded barrel's internal cavity to be performed at the same clamping station by extending and retracting the fine grinding blade. This reduces the need to replace grinding heads and improves overall processing efficiency. Furthermore, the synchronous adjustment mechanism solves the problem of secondary scratches on the injection molded barrel's internal cavity caused by rough grinding debris in existing technologies, and also solves the problem of low production efficiency due to manual debris removal in existing technologies.

Description

Technical Field

[0001] This invention relates to the field of injection molding barrel polishing, and more specifically, to an internal cavity polishing device for injection molding barrel production. Background Technology

[0002] The internal grinding device used in injection molded barrel production is mainly used to extend into the inside of the barrel to grind and repair injection molding defects such as gate residue, flash, and burrs, making the inner wall of the barrel smooth and flat. It also eliminates sharp protrusions in the inner cavity, preventing punctures to the inner liner and the generation of plastic debris that contaminates the contents, improving the pressure resistance and drop resistance of the barrel for packaging safety. At the same time, it reduces material residue on the wall, facilitates barrel cleaning and recycling, and ensures that the injection molded barrel can meet the usage conditions for the storage and transportation of chemical and hazardous materials.

[0003] For example, the Chinese utility model patent (application number: CN202120305909.3) discloses an "internal cavity grinding device for injection molding barrel production," which includes a worktable. The worktable's lower surface is provided with several support rods at equal intervals. A motor support base is fixedly installed on the upper surface of the worktable, and a motor is fixedly installed on the upper surface of the motor support base. The output end of the motor is connected to a first rotating shaft. A first turntable is provided at the middle of the first rotating shaft. A first support block is fixedly installed on the upper surface of the worktable. A fixed shaft is fixedly installed on the front surface of the first support block. A second turntable is rotatably installed at the top of the fixed shaft. The first and second turntables are connected by a belt. A hydraulic cylinder is fixedly installed on the front surface of the second turntable. A grinding shaft is fixedly installed at the output end of the hydraulic cylinder, and grinding discs are provided on both sides of the grinding shaft.

[0004] However, the aforementioned internal cavity grinding device for injection molded barrel production has some shortcomings in actual use: In actual production, the internal cavity of the injection molded barrel needs to undergo two processes, rough grinding and fine grinding, to achieve a smooth internal cavity. The above technical solution cannot complete the rough grinding and fine grinding of the internal cavity of the injection molded barrel simultaneously. It is necessary to change the grinding head according to the traditional processing method, and after the rough grinding of a batch of injection molded barrels is completed, the grinding head is changed again for fine grinding, which makes the overall work efficiency low.

[0005] Therefore, this application makes an improvement and proposes an inner cavity grinding device for injection molding barrel production. Summary of the Invention

[0006] The purpose of this invention is to address the problem that existing grinding devices for the inner cavity of injection molded barrels cannot simultaneously complete the rough grinding and fine grinding of the inner cavity of injection molded barrels, requiring the replacement of grinding heads and processing in batches, resulting in low overall processing efficiency.

[0007] To achieve the above-mentioned objectives, the present invention provides an internal cavity grinding device for injection molding barrel production, thereby improving the aforementioned problems.

[0008] The application is as follows: It includes a worktable, a support mechanism disposed on the worktable, a rotating mechanism disposed on the worktable, a hydraulic cylinder disposed on the rotating mechanism, a fixed seat disposed on the hydraulic cylinder, and a synchronous adjustment mechanism disposed on the fixed seat; The synchronous adjustment mechanism includes mounting block one and mounting block two mounted on the fixed base, a fine grinding blade mounted on mounting block one, a coarse grinding blade mounted on mounting block two, a U-shaped frame mounted on the worktable, a connecting block slidably mounted on the U-shaped frame, and an unfolding and retracting assembly mounted on the connecting block and the fixed base.

[0009] As a preferred technical solution of this application, the extension and retraction assembly includes a cylinder disposed on the connecting block, a guide block disposed in the fixed seat, a straight groove and an inclined groove disposed on the guide block, a fixed column disposed on the mounting block, a transmission seat slidably disposed in the fixed seat, a drive disk rotatably disposed on the transmission seat, a guide groove disposed in the transmission seat, and a push rod slidably disposed on the guide groove.

[0010] As a preferred technical solution of this application, the mounting block and the grinding tool are both slidably disposed on the fixed base, the fixed column is slidably disposed on the straight groove and the inclined groove, the driving disc is disposed on the output end of the cylinder, and the jacking rod is disposed on the fixed column.

[0011] As a preferred technical solution of this application, the guide block is provided with a support groove, the straight groove, the inclined groove and the support groove are all interconnected, and the fixed column is slidably disposed on the support groove.

[0012] As a preferred technical solution of this application, the connecting block is provided with a flow guide cover, the flow guide cover is provided with a through hole, and the through hole is inclined.

[0013] As a preferred technical solution of this application, an adjusting shaft is rotatably provided on the fixed base, a worm gear is provided on the adjusting shaft, and a worm is rotatably provided on the fixed base.

[0014] As a preferred technical solution of this application, the second mounting block is disposed on the adjusting shaft, and the worm and worm wheel are adapted to each other.

[0015] As a preferred technical solution of this application, the fixed base is provided with a flat part, and the mounting block two is rotatably disposed on the flat part.

[0016] As a preferred technical solution of this application, the fixed seat is provided with a cavity, a rectangular plate is slidably arranged in the cavity, a spiral groove is provided on the worm gear, a ball bearing is rotatably arranged on the rectangular plate, and a spring is provided on the corresponding surface of the rectangular plate and the cavity.

[0017] As a preferred technical solution of this application, the rectangular plate is slidably disposed on the worm gear, and the ball bearing is slidably disposed on the helical groove.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: In the scheme of this application: 1. In order to solve the problem that the existing grinding device for the inner cavity of injection molded barrel cannot complete the rough grinding and fine grinding of the inner cavity of the injection molded barrel simultaneously, and requires the replacement of grinding heads and processing in batches, resulting in low overall processing efficiency, this application sets up a synchronous adjustment mechanism. By extending and retracting the fine grinding tool through the synchronous adjustment mechanism, the rough grinding and fine grinding of the inner cavity of the injection molded barrel can be carried out at the same clamping station, reducing the need to replace grinding heads and improving the overall processing efficiency; 2. By setting a synchronous adjustment mechanism, the fine grinding cutter and the mounting block are driven to rotate synchronously and generate air. The axial positive airflow discharged from the through hole blows the debris away from the grinding area, reducing the situation where the debris is repeatedly crushed by the coarse grinding cutter, resulting in secondary scratches on the inner cavity of the injection molding barrel. This improves the processing quality of coarse grinding and solves the problem of secondary scratches on the inner cavity of the injection molding barrel caused by coarse grinding debris in the existing technology. 3. By using a synchronous adjustment mechanism, the coarse grinding blade and mounting block 2 are driven to rotate, generating air. The air sweeps away the debris in the injection molding barrel. The fixed seat rotates and slides, and the air gradually blows the debris in the injection molding barrel to the outside. This method reduces the subsequent manual cleaning steps, improves production efficiency, and solves the problem of low production efficiency caused by manual cleaning in the existing technology. Attached Figure Description

[0019] Figure 1 A schematic diagram of the internal cavity grinding device for injection molding barrel production provided in this application; Figure 2 A partial cross-sectional view of the connecting block of the internal cavity grinding device for injection molded barrel production provided in this application; Figure 3 A schematic diagram of the shrinkage structure of the fine grinding blade in the inner cavity grinding device for injection molded barrel production provided in this application; Figure 4 The internal cavity grinding device for injection molding barrel production provided in this application Figure 3 Enlarged structural diagram of area A in the middle; Figure 5A partial cross-sectional view of the mounting base of the internal cavity grinding device for injection molded barrel production provided in this application; Figure 6 A schematic diagram of the internal structure of the cavity grinding device for injection molding barrel production provided in this application; Figure 7 The internal cavity grinding device for injection molding barrel production provided in this application Figure 6 Enlarged structural diagram of area B in the middle; Figure 8 This is a schematic diagram of the unfolded structure of the fine grinding blade of the inner cavity grinding device for injection molding barrel production provided in this application.

[0020] The image shows: 1. Workbench; 101. Support mechanism; 102. Rotating mechanism; 103. Hydraulic cylinder; 104. Fixed base; 2. Synchronous adjustment mechanism; 201. Mounting block one; 202. Mounting block two; 203. Fine grinding tool; 204. Rough grinding tool; 205. U-shaped frame; 206. Connecting block; 207. Support groove; 208. Flow guide; 209. Through hole; 210. Adjusting shaft; 211. Worm gear; 212. Worm; 213. Flat part; 214. Cavity; 215. Rectangular plate; 216. Spiral groove; 217. Ball bearing; 218. Spring; 3. Spreading and retracting components; 301. Cylinder; 302. Guide block; 303. Straight groove; 304. Inclined groove; 305. Fixed column; 306. Transmission seat; 307. Drive disc; 308. Guide groove; 309. Push rod. Detailed Implementation

[0021] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0022] As described in the background section, the grinding device for the inner cavity of the injection molding barrel cannot simultaneously complete the rough grinding and fine grinding of the inner cavity of the injection molding barrel. It is necessary to change the grinding head and process in batches, resulting in low overall processing efficiency.

[0023] To solve this technical problem, the present invention provides an internal cavity grinding device for injection molding barrel production, which is applied to the grinding of injection molding barrels.

[0024] For details, please refer to Figure 1 - Figure 8As shown, the inner cavity grinding device for injection molding barrel production specifically includes: a worktable 1, a support mechanism 101 mounted on the worktable 1, a rotating mechanism 102 mounted on the worktable 1, a hydraulic cylinder 103 mounted on the rotating mechanism 102, a fixed seat 104 mounted on the hydraulic cylinder 103, and a synchronous adjustment mechanism 2 mounted on the fixed seat 104. In the prior art, the support mechanism 101 is used to support the injection molding barrel, and the rotating mechanism 102 is used to drive the hydraulic cylinder 103 to rotate. At the same time, the rotating mechanism 102 drives the injection molding barrel on the support mechanism 101 to rotate. The synchronous adjustment mechanism 2 includes a first mounting block 201 and a second mounting block 202 mounted on the fixed base 104, a fine grinding blade 203 mounted on the first mounting block 201, a coarse grinding blade 204 mounted on the second mounting block 202, a U-shaped frame 205 mounted on the worktable 1, a connecting block 206 slidably mounted on the U-shaped frame 205, and an unfolding and retracting assembly 3 mounted on the connecting block 206 and the fixed base 104.

[0025] In use, the injection barrel is placed on the support mechanism 101. The rotating mechanism 102 drives the hydraulic cylinder 103 and the injection barrel to rotate. The hydraulic cylinder 103 drives the fixed seat 104 to rotate synchronously. The unfolding assembly 3 drives the mounting block 201 and the fine grinding blade 203 to slide synchronously, so that the mounting block 201 and the fine grinding blade 203 slide to the inside of the fixed seat 104, so that the fine grinding blade 203 cannot contact the inner cavity of the injection barrel, and the coarse grinding blade 204 is in contact with the inner cavity of the injection barrel. The fixed seat 104 rotates and drives the fine grinding blade 203 and the coarse grinding blade 204 to rotate synchronously. The coarse grinding blade 204 rotates and performs coarse grinding on the inner cavity of the injection barrel. The hydraulic cylinder 103 drives the coarse grinding blade 204 to slide along the axial direction of the inner cavity of the injection barrel for coarse grinding. The fixed seat 104 drives the connecting block 206 to slide synchronously. The fixed seat 104 rotates on the connecting block 206, which improves the stability of the sliding of the fixed seat 104. After the rough grinding of the inner cavity of the injection molding barrel is completed, the fine grinding cutter 203 is driven to slide out from the inside of the fixed seat 104 by the unfolding component 3. The fine grinding cutter 203 slides out and fits with the inner cavity of the injection molding barrel after rough grinding. At this time, the hydraulic cylinder 103 drives the fixed seat 104 to slide back to its original position. The fixed seat 104 rotates and slides back to its original position. The fixed seat 104 drives the fine grinding cutter 203 to rotate and perform fine grinding on the inner cavity of the injection molding barrel, thus completing the process of rough grinding and fine grinding of the inner cavity of the injection molding barrel. By unfolding and retracting the fine grinding cutter 203, the rough grinding and fine grinding of the inner cavity of the injection molding barrel can be achieved at the same clamping position, reducing the need to change the grinding head and improving the overall processing efficiency. To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0026] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0027] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0028] Example 1, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, an inner cavity grinding device for injection molded barrel production includes an unfolding and retracting assembly 3 comprising a cylinder 301 mounted on a connecting block 206, a guide block 302 disposed within a fixed base 104, a straight groove 303 and an inclined groove 304 disposed on the guide block 302, a fixed column 305 disposed on an mounting block 201, a transmission seat 306 slidably disposed within the fixed base 104, a drive disc 307 rotatably disposed on the transmission seat 306, a guide groove 308 disposed within the transmission seat 306, and a push rod 309 slidably disposed on the guide groove 308. Furthermore, the mounting block 201 and the grinding tool 203 are both slidably mounted on the fixed seat 104, the fixed column 305 is slidably mounted on the straight groove 303 and the inclined groove 304, the drive disc 307 is mounted on the output end of the cylinder 301, and the push rod 309 is mounted on the fixed column 305. like Figure 3 As shown, the fine grinding blade 203 is located inside the fixed base 104. After the coarse grinding blade 204 finishes coarse grinding the inside of the injection molding barrel, the cylinder 301 is activated. The output end of the cylinder 301 drives the drive disc 307 and the transmission base 306 to slide. The transmission base 306 drives the push rod 309 to slide synchronously. The push rod 309 drives the fixed column 305, the mounting block 201, and the fine grinding blade 203 to slide synchronously. The fixed column 305 slides along the straight groove 303. When the fixed column 305 slides from the straight groove 303 to the inclined groove 304, the fixed column 305 drives the push rod 309 to slide along the guide groove 308. At this time, the push rod 309 slides out, as shown. Figure 8 As shown, at this time, the fine grinding blade 203 slides out and fits into the inner cavity of the injection molding barrel, and the inner cavity of the injection molding barrel is finely ground by rotating the fine grinding blade 203; Furthermore, the guide block 302 is provided with a support groove 207, and the straight groove 303, the inclined groove 304 and the support groove 207 are all interconnected, and the fixed column 305 is slidably disposed on the support groove 207. When the fixed post 305 slides from the straight groove 303 to the inclined groove 304, the fine grinding cutter 203 slides out. When the fixed post 305 slides from the inclined groove 304 to the support groove 207, the fixed post 305 is supported by the support groove 207. When the fine grinding cutter 203 grinds the injection molding cavity, compared with supporting the fixed post 305 by the inclined groove 304, the load on the cylinder 301 is reduced by the support groove 207. Furthermore, a flow guide 208 is provided on the connecting block 206, and a through hole 209 is provided on the flow guide 208, the through hole 209 being inclined. like Figure 3 As shown, the fine grinding cutter 203 is located inside the fixed base 104. When the fixed base 104 rotates, it drives the coarse grinding cutter 204 and the fine grinding cutter 203 to rotate synchronously. The coarse grinding cutter 204 rotates and performs coarse grinding on the inside of the injection molding barrel. The fine grinding cutter 203 and the mounting block 201 rotate synchronously and generate air. The air is discharged from the through hole 209. Multiple through holes 209 are provided and distributed in a circumferential array on the guide shroud 208. When the coarse grinding cutter 204 rotates and performs coarse grinding on the inner cavity of the injection molding barrel, the through hole 209 is inclined and aligned with the output end of the coarse grinding cutter 204. When the coarse grinding inside the injection molding barrel produces debris, the axial positive airflow discharged through the through hole 209 blows the debris away from the grinding area, reducing the situation where the debris is repeatedly crushed by the coarse grinding cutter 204, resulting in secondary scratches on the inner cavity of the injection molding barrel, thus improving the processing quality of coarse grinding. By using the synchronous adjustment mechanism 2 to extend and retract the fine grinding cutter 203, both rough and fine grinding of the injection molding barrel's inner cavity are achieved at the same clamping station. This reduces the need to change grinding heads and improves overall processing efficiency. The synchronous adjustment mechanism 2 drives the fine grinding cutter 203 and the mounting block 201 to rotate synchronously and generate airflow. This causes the axial positive airflow discharged from the through hole 209 to blow debris away from the grinding area, reducing the possibility of debris being repeatedly crushed by the rough grinding cutter 204, which could lead to secondary scratches on the inner cavity of the injection molding barrel. This improves the processing quality of rough grinding.

[0029] Example 2 further optimizes the inner cavity grinding device for injection molding barrel production provided in Example 1, specifically, as follows: Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, an adjusting shaft 210 is rotatably mounted on the fixed base 104, a worm gear 211 is mounted on the adjusting shaft 210, and a worm 212 is rotatably mounted on the fixed base 104. Furthermore, mounting block 202 is mounted on adjusting shaft 210, and worm gear 212 and worm wheel 211 are adapted to each other; When the fine grinding tool 203 slides out, as Figure 8As shown, by driving the worm gear 212 to rotate, the worm gear 212 drives the worm wheel 211 to rotate, the worm wheel 211 drives the adjusting shaft 210 to rotate, and the adjusting shaft 210 rotates and drives the mounting block 202 and the coarse grinding blade 204 to rotate synchronously. When the fixed seat 104 rotates, the fixed seat 104 drives the fine grinding blade 203 and the coarse grinding blade 204 to rotate synchronously. The fine grinding blade 203 rotates and performs fine grinding on the inner cavity of the injection molding barrel. The rotation of the coarse grinding blade 204 and the mounting block 202 generates air. The air blows away the debris in the injection molding barrel. The fixed seat 104 rotates and slides, and the air gradually blows the debris in the injection molding barrel away to the outside. This method reduces the subsequent manual cleaning steps and improves production efficiency. Furthermore, a flat portion 213 is provided on the fixed base 104, and the second mounting block 202 is rotatably mounted on the flat portion 213. The flat portion 213 is used to provide auxiliary support for the second mounting block 202. Furthermore, a cavity 214 is provided inside the fixed base 104, a rectangular plate 215 is slidably arranged inside the cavity 214, a spiral groove 216 is provided on the worm gear 212, a ball bearing 217 is rotatably arranged on the rectangular plate 215, and a spring 218 is provided on the corresponding surfaces of the rectangular plate 215 and the cavity 214. Furthermore, the rectangular plate 215 is slidably disposed on the worm gear 212, and the ball bearing 217 is slidably disposed on the helical groove 216; When the fine grinding cutter 203 slides out, the output end of the cylinder 301 drives the drive disc 307 and the transmission seat 306 to slide synchronously. The transmission seat 306 slides and pushes the rectangular plate 215. The rectangular plate 215 slides along the cavity 214. The spring 218 is compressed by the rectangular plate 215. The ball bearings 217 on the rectangular plate 215 slide synchronously and push the spiral groove 216. The ball bearings 217 drive the worm gear 212 to rotate. The worm gear 212 rotates and drives the mounting block 202 and the coarse grinding cutter 204 to rotate. When the fine grinding cutter 203 slides to the inside of the fixed seat 104, the transmission seat 306 disengages from the rectangular plate 215. The spring 218 drives the rectangular plate 215 to slide back to its original position. Then the mounting block 202 and the coarse grinding cutter 204 rotate back to their original position. The synchronous adjustment mechanism 2 drives the coarse grinding blade 204 and the mounting block 202 to rotate and generate air. The air sweeps away the debris in the injection barrel. The fixed seat 104 rotates and slides, and the air gradually blows the debris in the injection barrel to the outside. This method reduces the subsequent manual cleaning steps and improves production efficiency. The process of using the inner cavity grinding device for injection molding barrel production provided by this invention is as follows: In use, the injection barrel is placed on the support mechanism 101. The rotating mechanism 102 drives the hydraulic cylinder 103 and the injection barrel to rotate. The hydraulic cylinder 103 drives the fixed base 104 to rotate synchronously. The fixed base 104 rotates and drives the fine grinding blade 203 and the coarse grinding blade 204 to rotate synchronously. The coarse grinding blade 204 rotates and performs coarse grinding on the inner cavity of the injection barrel. The hydraulic cylinder 103 drives the coarse grinding blade 204 to slide along the axial direction of the inner cavity of the injection barrel for coarse grinding. The fine grinding blade 203 and the mounting block 201 rotate synchronously and generate air. The air is discharged from the through hole 209. Multiple through holes 209 are provided and distributed in a circumferential array on the guide shroud 208. When the coarse grinding blade 204 rotates and coarsely grinds the inner cavity of the injection molding barrel, the through hole 209 is inclined and aligned with the output end of the coarse grinding blade 204. When debris is generated during coarse grinding inside the injection molding barrel, the axial positive airflow discharged through the through hole 209 blows the debris away from the grinding area. The fixed seat 104 drives the connecting block 206 to slide synchronously. The fixed seat 104 rotates on the connecting block 206. After the coarse grinding of the inner cavity of the injection molding barrel is completed, the cylinder 301 is activated. The output end of the cylinder 301 drives the drive disc 307 and the transmission seat 306 to slide. The transmission seat 306 drives the push rod 309 to slide synchronously. The push rod 309 drives the fixed column 305 and the mounting block. The grinding tool 201 and the fine grinding tool 203 slide synchronously. The fixed post 305 slides along the straight groove 303. When the fixed post 305 slides from the straight groove 303 to the inclined groove 304, the fixed post 305 drives the push rod 309 to slide along the guide groove 308. At this time, the push rod 309 slides out. When the fixed post 305 slides from the inclined groove 304 to the support groove 207, the support groove 207 supports the fixed post 305. The transmission seat 306 slides and pushes the rectangular plate 215. The rectangular plate 215 slides along the cavity 214. The spring 218 is compressed by the rectangular plate 215. The ball bearings 217 on the rectangular plate 215 slide synchronously and... The auger groove 216 is activated, which drives the worm gear 212 to rotate via the ball bearings 217. The worm gear 212 drives the worm wheel 211 to rotate, which in turn drives the adjusting shaft 210 to rotate. The adjusting shaft 210 rotates and drives the mounting block 202 and the coarse grinding blade 204 to rotate synchronously. When the fixed seat 104 rotates, it drives the fine grinding blade 203 and the coarse grinding blade 204 to rotate synchronously. The fine grinding blade 203 rotates and performs fine grinding on the inner cavity of the injection molding barrel. The rotation of the coarse grinding blade 204 and the mounting block 202 generates airflow, which blows away the debris inside the injection molding barrel. The fixed seat 104 rotates and slides, and the airflow gradually blows the debris inside the injection molding barrel to the outside.

[0030] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0031] Obviously, the embodiments described above are merely some embodiments of the present invention, not all embodiments. The accompanying drawings show preferred embodiments of the present invention, but do not limit the patent scope of the present invention. The present invention can be implemented in many different forms; rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this invention.

Claims

1. An inner cavity grinding device for injection molded barrel production, comprising a worktable (1), a support mechanism (101) disposed on the worktable (1), a rotating mechanism (102) disposed on the worktable (1), and a hydraulic cylinder (103) disposed on the rotating mechanism (102), characterized in that, Includes a fixed seat (104) mounted on the hydraulic cylinder (103) and a synchronous adjustment mechanism (2) mounted on the fixed seat (104); The synchronous adjustment mechanism (2) includes a first mounting block (201) and a second mounting block (202) mounted on the fixed base (104), a fine grinding blade (203) mounted on the first mounting block (201), a coarse grinding blade (204) mounted on the second mounting block (202), a U-shaped frame (205) mounted on the worktable (1), a connecting block (206) slidably mounted on the U-shaped frame (205), and an unfolding and retracting assembly (3) mounted on the connecting block (206) and the fixed base (104).

2. The inner cavity grinding device for injection molded barrel production according to claim 1, characterized in that, The unfolding and retracting assembly (3) includes a cylinder (301) mounted on the connecting block (206), a guide block (302) is provided in the fixed seat (104), the guide block (302) is provided with a straight groove (303) and an inclined groove (304), a fixed column (305) is provided on the mounting block (201), a transmission seat (306) is slidably mounted in the fixed seat (104), a drive disc (307) is rotatably mounted on the transmission seat (306), a guide groove (308) is provided in the transmission seat (306), and a push rod (309) is slidably mounted on the guide groove (308).

3. The inner cavity grinding device for injection molded barrel production according to claim 2, characterized in that, The mounting block (201) and the grinding tool (203) are slidably mounted on the fixed base (104), the fixed column (305) is slidably mounted on the straight groove (303) and the inclined groove (304), the drive disc (307) is mounted on the output end of the cylinder (301), and the push rod (309) is mounted on the fixed column (305).

4. The inner cavity grinding device for injection molded barrel production according to claim 3, characterized in that, The guide block (302) is provided with a support groove (207), the straight groove (303), the inclined groove (304) and the support groove (207) are all interconnected, and the fixed column (305) is slidably disposed on the support groove (207).

5. The inner cavity grinding device for injection molded barrel production according to claim 4, characterized in that, The connecting block (206) is provided with a flow guide (208), and the flow guide (208) is provided with a through hole (209), which is inclined.

6. The inner cavity grinding device for injection molded barrel production according to claim 5, characterized in that, An adjusting shaft (210) is rotatably mounted on the fixed base (104), a worm gear (211) is mounted on the adjusting shaft (210), and a worm (212) is rotatably mounted on the fixed base (104).

7. The inner cavity grinding device for injection molded barrel production according to claim 6, characterized in that, The second mounting block (202) is mounted on the adjusting shaft (210), and the worm (212) and worm wheel (211) are adapted to each other.

8. The inner cavity grinding device for injection molded barrel production according to claim 7, characterized in that, The fixed base (104) is provided with a flat part (213), and the second mounting block (202) is rotatably mounted on the flat part (213).

9. The inner cavity grinding device for injection molded barrel production according to claim 8, characterized in that, The fixed base (104) is provided with a cavity (214), a rectangular plate (215) is slidably arranged in the cavity (214), a spiral groove (216) is provided on the worm (212), a ball bearing (217) is rotatably arranged on the rectangular plate (215), and a spring (218) is provided on the corresponding surface of the rectangular plate (215) and the cavity (214).

10. The inner cavity grinding device for injection molded barrel production according to claim 9, characterized in that, The rectangular plate (215) is slidably disposed on the worm (212), and the ball (217) is slidably disposed on the spiral groove (216).

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