Rubber fitting deburring device

Abstract

This invention discloses a deburring device for rubber parts, belonging to the technical field of deburring removal for rubber parts. It includes a support base, with a processing cylinder rotatably connected inside the support base. The processing cylinder has an opening at its top, and a top cover is detachably connected inside the opening. A protective sleeve is installed inside the processing cylinder, and a nitrogen tank is housed inside the protective sleeve. A fixing pipe is fixedly connected to the upper end of the protective sleeve. In use, liquid nitrogen cools the rubber parts, making the burrs brittle. Then, with the cooperation of a water spray structure and an ice slag generation structure, ice slag is generated and sprayed onto the rubber parts, impacting the burrs and causing them to separate from the rubber parts. This method can quickly remove burrs from rubber parts without damaging them, and the ice slag is made from water, significantly reducing processing costs.

Description

Technical Field

[0001] This invention relates to the field of burr removal technology for rubber parts, specifically a burr removal device for rubber parts. Background Technology

[0002] During the molding or injection molding process, rubber parts (such as O-rings, gaskets, shock absorbers, dust covers, etc.) inevitably produce excess material at the product edges, known as burrs (or flash). This is due to factors such as the parting line clearance of the mold, the design of venting grooves, and the flowability of the rubber compound. Burrs not only affect the appearance quality of the product but can also impact sealing performance and assembly accuracy. Therefore, deburring is an essential and critical process in rubber product manufacturing. Currently, burr removal methods include manual processing, mechanical stamping, and cryogenic shot peening. Manual processing is significantly less efficient, mechanical stamping requires specialized molds and is costly, and cryogenic shot peening requires the use of special granular materials to impact the rubber parts, which can easily scratch the surface of the rubber components. Summary of the Invention

[0003] The purpose of this invention is to provide a deburring device for rubber parts to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] A deburring device for rubber parts includes a support base, a processing cylinder rotatably connected inside the support base, an opening at the top of the processing cylinder, a top cover detachably connected inside the opening, a protective sleeve installed inside the processing cylinder, a nitrogen tank inside the protective sleeve, a fixing pipe fixedly connected to the upper end of the protective sleeve, the fixing pipe being fixedly connected to the processing cylinder via a support frame, and the nitrogen tank being connected to the fixing pipe.

[0006] The protective sleeve is rotatably connected to the outside of the sleeve. A holding mesh cylinder for holding rubber parts is fixedly connected to the outer wall of the sleeve. A rotating connecting ring is rotatably connected to the outer wall of the fixed tube and communicates with the fixed tube. Several exhaust pipes are fixedly connected to the outer wall of the rotating connecting ring. The exhaust pipes extend downward into the holding mesh cylinder and several nozzles are connected to the outer wall of the exhaust pipes.

[0007] As a further embodiment of the present invention, the lower end of the rotating sleeve extends through the wall of the processing cylinder to the bottom of the processing cylinder, and a gear ring is fixedly connected to the lower end of the rotating sleeve. A power gear meshes with the side wall of the gear ring, and a power motor is fixedly connected to the lower end of the power gear.

[0008] As a further embodiment of the present invention, the processing cylinder is provided with an ice-making hollow drum inside, the ice-making hollow drum is fixedly connected to the rotating sleeve, the upper end of the top cover is provided with a feeding port, the side wall of the ice-making hollow drum is provided with a transition notch corresponding to the feeding port, and the lower end of the processing cylinder is also fixedly connected with a drain pipe.

[0009] As a further embodiment of the present invention, the interior of the ice-making drum is hollow, and the interior of the ice-making drum is provided with several arc-shaped cooling pipes, which are connected to the exhaust pipe. The interior of the ice-making drum is also filled with liquid nitrogen.

[0010] As a further embodiment of the present invention, the lower end of the top cover is fixedly connected to an ice slag manufacturing structure and a water spraying structure. The ice slag manufacturing structure includes a holding shell, which is fixed to the lower end of the top cover. The end of the holding shell near the ice-making hollow drum is attached to the surface of the ice-making hollow drum. A powerful fan is fixedly connected to the top of the holding shell, and the air outlet of the powerful fan is located inside the holding shell.

[0011] As a further embodiment of the present invention, the water spray structure includes a mounting cover, which is fixedly connected to the lower end of the top cover and located on one side of the ice-making hollow drum. A water pump is fixedly connected to the top of the mounting cover, and a water inlet pipe is fixedly connected to the water inlet end of the water pump. The water inlet pipe is connected to a water storage tank, and a water spray head is fixedly connected to the water outlet end of the water pump.

[0012] As a further embodiment of the present invention, both the holding shell and the mounting cover have fitting openings at the ends near the ice-making hollow drum, and the curvature of the fitting openings matches the curvature of the surface of the ice-making hollow drum.

[0013] As a further embodiment of the present invention, an ice scraper is fixedly connected to the side wall of the holding shell. The curvature of the ice scraper matches the surface curvature of the ice-making drum, and the blade of the ice scraper is attached to the surface of the ice-making drum. An ice inlet is provided on the side wall of the holding shell.

[0014] As a further embodiment of the present invention, a shield is fixedly connected to the side wall of the holding shell, an exhaust pipe is fixedly connected to the inside of the holding shell, and the air outlet of the exhaust pipe faces the bottom of the inside of the holding shell. An ice discharge pipe is fixedly connected to the lower end of the holding shell, and the ice discharge pipe communicates with the holding shell.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. When using this invention, the rubber parts tumble inside the holding mesh cylinder. During the tumbling process, the rubber parts collide with each other. During the collision, some of the rough edges on the rubber parts are knocked off, thus performing preliminary treatment on the rough edges. Liquid nitrogen is atomized and sprayed out through the nozzle on the exhaust pipe. The sprayed liquid nitrogen enters the processing cylinder and instantly vaporizes, thereby rapidly cooling the rubber parts inside the holding mesh cylinder. Since the rough edges on the rubber parts are much smaller than the rubber parts in both thickness and width, the rough edges on the rubber parts are rapidly frozen. After being frozen, the rough edges on the rubber parts become brittle. Since the rubber parts are larger than the rough edges in both thickness and size, the rubber parts themselves will still retain elasticity. The brittle rough edges will be more easily detached from the rubber parts under the mutual collision of the rubber parts.

[0017] 2. In the use of this invention, the temperature inside the liquid nitrogen processing cylinder decreases during the liquid nitrogen spraying process, and the liquid nitrogen also passes through the cooling pipe, further cooling the ice-making drum to keep its surface at a low temperature. A temperature sensor can detect the temperature of the ice-making drum in real time. Water is then sprayed onto the surface of the ice-making drum through a spray nozzle. The water sprayed onto the surface of the ice-making drum is quickly frozen. As the ice-making drum rotates, the ice on its surface is scraped off by an ice scraper. Because the ice-making drum is rotating, the scraped ice fragments move towards the direction of rotation. The ice splashes towards the ice inlet and then enters the holding shell through the inlet. The shield restricts the splashing ice, allowing most of the ice to enter the holding shell. The ice inside the holding shell is then quickly blown out by the airflow from the strong fan, causing some of the ice to impact the rubber parts and their rough edges, thus separating the rough edges from the rubber parts. This method can quickly remove the rough edges of the rubber parts without damaging them, and the fact that the ice is made from water significantly reduces processing costs. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of a deburring device for rubber parts.

[0019] Figure 2 This is an exploded view of a deburring device for rubber fittings.

[0020] Figure 3 This is a cross-sectional view of a deburring device for rubber fittings.

[0021] Figure 4 This is a diagram showing the connection between the ice-making hollow drum and the rotating sleeve in a rubber fitting deburring device.

[0022] Figure 5 This is a split view of the ice-making hollow drum and rotating sleeve in a rubber fitting deburring device.

[0023] Figure 6This is a structural diagram of ice residue manufacturing in a deburring device for rubber parts.

[0024] Figure 7 This is a diagram of a water spray structure in a deburring device for rubber parts.

[0025] Figure 8 This is a schematic diagram of the water spraying state in a deburring device for rubber parts.

[0026] In the diagram: 1. Support base; 2. Processing cylinder; 3. Power chamber; 4. Angle adjustment motor; 5. Top cover; 6. Cylinder opening; 7. Container cylinder; 8. Rotating sleeve; 9. Gear ring; 10. Protective sleeve; 11. Nitrogen tank; 13. Support frame; 14. Connecting window; 15. Ice slag manufacturing structure; 16. Water spray structure; 17. Fixed pipe; 18. Rotating connecting ring; 19. Exhaust pipe; 20. Nozzle;

[0027] 21. Feed inlet; 22. Transition notch; 23. Power motor; 24. Power gear; 25. Bottom drain pipe; 26. Ice-making drum; 27. Cooling pipe;

[0028] 150. Container casing; 151. Ice scraper; 152. Ice inlet; 153. Shielding cover; 154. Sealing joint; 155. Powerful fan; 156. Exhaust duct; 157. Ice exhaust duct;

[0029] 160. Mounting cover; 161. Water pump; 162. Water inlet pipe; 163. Spray head. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. 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 are within the scope of protection of the present invention.

[0031] Please see Figures 1-4 In this embodiment of the invention, a deburring device for rubber parts includes a support base 1, and a processing cylinder 2 is rotatably connected inside the support base 1. Specifically, the support base 1 includes a square base plate and two triangular side plates, and the two side plates are fixedly connected to the left and right ends of the square base plate. The processing cylinder 2 is rotatably connected to the side plates through a rotating shaft, and an angle adjustment motor 4 for driving the rotation of the processing cylinder 2 is fixedly connected to the side wall of one of the side plates. The output shaft of the angle adjustment motor 4 is fixedly connected to the rotating shaft on the processing cylinder 2. More specifically, by turning on the angle adjustment motor 4, the processing cylinder 2 can be driven to rotate, thereby adjusting the angle of the processing cylinder 2, which facilitates pouring and loading of materials.

[0032] The processing cylinder 2 has an opening 6 at its top. A top cover 5 is detachably connected inside the opening 6. The top cover 5 is located inside the opening 6 and connected to the processing cylinder 2 by bolts. A protective sleeve 10 is installed inside the processing cylinder 2. A connection window 14 is opened in the middle of the top cover 5. The protective sleeve 10 passes through the top cover 5 via the connection window 14. A nitrogen tank 11 is installed inside the protective sleeve 10. A fixing pipe 17 is fixedly connected to the upper end of the protective sleeve 10. The fixing pipe 17 is fixedly connected to the processing cylinder 2 via a support frame 13. A cryogenic solenoid valve is fixedly connected to the upper end of the nitrogen tank 11, and the discharge port of the cryogenic solenoid valve is connected to the fixing pipe 17 via a cryogenic resistant pipe. The cryogenic solenoid valve and the cryogenic resistant pipe are existing technologies and will not be described in detail here. A rotating sleeve 8 is rotatably connected to the outside of the protective sleeve 10. A container for holding... The container 7 for holding rubber parts has a rotating sleeve 8 extending through the wall of the processing cylinder 2 to the bottom of the processing cylinder 2. A toothed ring 9 is fixedly connected to the lower end of the rotating sleeve 8. A power gear 24 meshes with the side wall of the toothed ring 9. A power motor 23 is fixedly connected to the lower end of the power gear 24. Specifically, the output shaft of the power motor 23 is fixedly connected to the power gear 24. A power chamber 3 is fixedly connected to the lower end of the processing cylinder 2. The toothed ring 9, the power gear 24, and the power motor 23 are all located inside the power chamber 3. A heat dissipation vent is provided on the outer wall of the power chamber 3. More specifically, a protective cover is fixedly connected to the outer wall of the rotating sleeve 8. A slip ring is fixedly connected to the lower end of the protective cover. A groove corresponding to the slip ring is provided at the bottom of the interior of the processing cylinder 2. The slip ring is slidably connected in the groove. The protective cover can prevent water in the processing cylinder 2 from flowing into the power chamber 3.

[0033] When in use, turn on the power motor 23. After the power motor 23 is turned on, it will drive the gear ring 9 to rotate through the power gear 24. During the rotation of the gear ring 9, it will drive the holding mesh cylinder 7 through the rotating sleeve 8, which will in turn drive the rubber parts inside the holding mesh cylinder 7 to tumble, thereby improving the efficiency of burr removal.

[0034] A rotating connecting ring 18 is rotatably connected to the outer wall of the fixed pipe 17, and the rotating connecting ring 18 is connected to the fixed pipe 17 (wherein, the rotating connecting ring 18 is a pipe rotating connector, which is prior art and will not be described in detail here). Several exhaust pipes 19 are fixedly connected to the outer wall of the rotating connecting ring 18. An ultra-low temperature solenoid valve is also installed inside the exhaust pipe 19. The exhaust pipe 19 extends downward into the holding mesh cylinder 7, and several nozzles 20 are connected to the outer wall of the exhaust pipe 19. Several exhaust pipes 19 are also located in the connecting window 14. The nozzles 20 are liquid nitrogen atomizing nozzles. Liquid nitrogen atomizing nozzles are prior art and will not be described in detail here. Several pipe joints are fixedly connected to the outlet end of the rotating connecting ring 18, which is the pipe rotating connector, and the pipe joints are respectively connected to the exhaust pipes 19.

[0035] When in use, the nitrogen in the nitrogen tank 11 is sprayed out through the nozzle 20, which freezes the rubber parts in the mesh cylinder 7, making it easier to remove burrs later.

[0036] The processing cylinder 2 is equipped with an ice-making hollow drum 26, which is equipped with a temperature sensor. The ice-making hollow drum 26 is fixedly connected to the rotating sleeve 8. The top cover 5 has a feeding port 21 at its upper end. The ice-making hollow drum 26 has a transition notch 22 corresponding to the feeding port 21 on its side wall. The processing cylinder 2 is also fixedly connected to a drain pipe 25 at its lower end.

[0037] In use, the rubber parts are poured into the processing cylinder 2 through the feeding port 21. After entering the feeding port 21, the rubber parts will enter the interior of the holding mesh cylinder 7 through the transition notch 22, thus completing the loading.

[0038] Please see Figures 5-7 The ice-making drum 26 is hollow inside, and several arc-shaped cooling pipes 27 are installed inside the ice-making drum 26. The cooling pipes 27 are connected to the exhaust pipe 19. The ice-making drum 26 is also filled with liquid nitrogen. Specifically, the cooling pipes 27 and the exhaust pipe 19 are integrally formed. An ultra-low temperature solenoid valve is installed on the inner wall of the ice-making drum 26. Liquid nitrogen can be added into the ice-making drum 26 through the ultra-low temperature solenoid valve. More specifically, the liquid nitrogen in the ice-making drum 26 is one-third of the volume of the ice-making drum 26.

[0039] When in use, liquid nitrogen enters the ice-making drum 26 and vaporizes, thereby cooling the internal space of the ice-making drum 26 and keeping the surface temperature of the ice-making drum 26 below zero degrees Celsius.

[0040] The lower end of the top cover 5 is fixedly connected to an ice slag making structure 15 and a water spraying structure 16. The ice slag making structure 15 includes a holding shell 150, which is fixed to the lower end of the top cover 5. The end of the holding shell 150 near the ice-making hollow drum 26 is slidably attached to the surface of the ice-making hollow drum 26. The top of the holding shell 150 is fixedly connected to a strong fan 155, and the air outlet of the strong fan 155 is located inside the holding shell 150.

[0041] The water spray structure 16 includes a mounting cover 160, which is fixedly connected to the lower end of the top cover 5 and is located on one side of the ice-making hollow drum 26. A water pump 161 is fixedly connected to the top of the mounting cover 160. A water inlet pipe 162 is fixedly connected to the water inlet end of the water pump 161 and is connected to a water storage tank. The water storage tank is existing technology and will not be described in detail here. A water spray head 163 is fixedly connected to the water outlet end of the water pump 161.

[0042] Specifically, both the holding shell 150 and the mounting cover 160 have a fitting opening 154 at the end near the ice-making hollow drum 26, and the curvature of the fitting opening 154 matches the curvature of the surface of the ice-making hollow drum 26.

[0043] An ice scraper 151 is fixedly connected to the side wall of the holding shell 150. The curvature of the ice scraper 151 matches the surface curvature of the ice-making hollow drum 26, and the blade of the ice scraper 151 is attached to the surface of the ice-making hollow drum 26. An ice inlet 152 is provided on the side wall of the holding shell 150. A shield 153 is also fixedly connected to the side wall of the holding shell 150. An exhaust pipe 156 is fixedly connected inside the holding shell 150, and the air outlet of the exhaust pipe 156 faces the bottom of the inside of the holding shell 150. An ice discharge pipe 157 is fixedly connected to the lower end of the holding shell 150, and the ice discharge pipe 157 is connected to the holding shell 150.

[0044] In use, the crushed ice entering the holding shell 150 is blown into the ice discharge pipe 157 by the strong wind blown out of the exhaust pipe 156, and finally sprayed into the holding mesh cylinder 7 from the ice discharge pipe 157. The crushed ice then impacts the rubber parts, thereby removing the burrs on the surface of the rubber parts. The exhaust pipe 156 allows the high-speed airflow blown out by the strong fan 155 to be concentrated and flow downwards from the holding shell 150. At this time, under the action of air pressure difference, ice shavings are drawn into the holding shell 150 from the ice inlet 152, thereby further increasing the collection effect of ice shavings.

[0045] The working principle of this invention is:

[0046] In this invention, rubber parts are first poured into the holding mesh cylinder 7 through the feeding port 21. Then, the power motor 23 is turned on, driving the toothed ring 9 to rotate. The rotation of the toothed ring 9 causes the holding mesh cylinder 7 to rotate, resulting in the rubber parts tumbling inside. During this tumbling, the rubber parts collide with each other, and some of the rough edges on the rubber parts are knocked off, thus performing preliminary rough edge treatment. Then, liquid nitrogen is atomized and sprayed out through the nozzle 20 on the exhaust pipe 19. The sprayed liquid nitrogen enters the processing cylinder 2 and instantly vaporizes (the temperature inside the processing cylinder 2 is much higher than the temperature of the liquid nitrogen, therefore the temperature of the processing cylinder 2 is relatively high compared to the liquid nitrogen). The temperature is so high that liquid nitrogen will vaporize after entering the processing cylinder 2. Even as the amount of vaporized liquid nitrogen in the processing cylinder 2 increases, the temperature inside the processing cylinder 2 will not be lower than that of the liquid nitrogen. Therefore, as long as liquid nitrogen is sprayed into the processing cylinder 2, it will vaporize, thereby rapidly cooling the rubber parts in the mesh cylinder 7. Since the burrs on the rubber parts are much smaller than the rubber parts in terms of both thickness and width, the burrs on the rubber parts will be frozen quickly. After being frozen, the burrs on the rubber parts will become brittle. Since the rubber parts are larger than the burrs in terms of both thickness and size, the rubber parts themselves will still retain their elasticity. The brittle burrs will be more likely to detach from the rubber parts under the mutual impact of the rubber parts.

[0047] During the liquid nitrogen spraying process, the temperature inside the liquid nitrogen processing cylinder 2 decreases, and the liquid nitrogen also passes through the cooling pipe 27, further cooling the ice-making drum 26 to maintain its surface at a low temperature. The temperature of the ice-making drum 26 can be detected in real time by a temperature sensor, and then water is sprayed onto the surface of the ice-making drum 26 through the water spray head 163 (the water spraying state is as follows). Figure 8 The water sprayed onto the surface of the ice-making drum 26 will be quickly frozen (in order to prevent the water sprayed onto the ice-making drum 26 from being thrown out, the speed of the motor 23 can be reduced). As the ice-making drum 26 rotates, the ice on its surface will be scraped off by the ice scraper 151. Since the ice-making drum 26 is rotating, the scraped ice shavings will splash in the direction of rotation of the ice-making drum 26, that is, splash towards the ice inlet 152, and then enter the holding shell 150 through the ice inlet 152. The shield 153 can restrict the splashed ice shavings, so that most of the ice shavings can enter the holding shell 150. The ice shavings that enter the holding shell 150 will be quickly blown out by the airflow of the strong fan 155, and then some ice shavings will hit the rubber parts and the rough edges of the rubber parts, thereby separating the rough edges from the rubber parts. In this way, the rough edges of the rubber parts can be removed quickly without damaging the rubber parts. Moreover, the ice shavings are made of water, which can significantly reduce the processing cost.

[0048] During the processing, the water inside the processing cylinder 2 will flow out through the lower drain pipe 25. After processing is completed, the angle of the processing cylinder 2 can be adjusted to pour out the processed rubber parts from the inside of the processing cylinder 2.

[0049] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A deburring device for rubber fittings, comprising a support base (1), characterized in that, The support base (1) is rotatably connected to a processing cylinder (2). The top of the processing cylinder (2) is provided with a cylinder opening (6). A top cover (5) is detachably connected to the inside of the cylinder opening (6). A protective sleeve (10) is installed inside the processing cylinder (2). A nitrogen tank (11) is provided inside the protective sleeve (10). A fixing pipe (17) is fixedly connected to the upper end of the protective sleeve (10). The fixing pipe (17) is fixedly connected to the processing cylinder (2) through a support frame (13). The nitrogen tank (11) is connected to the fixing pipe (17). The protective sleeve (10) is rotatably connected to a rotating sleeve (8). A holding mesh cylinder (7) for holding rubber parts is fixedly connected to the outer wall of the rotating sleeve (8). A rotating connecting ring (18) is rotatably connected to the outer wall of the fixed pipe (17), and the rotating connecting ring (18) communicates with the fixed pipe (17). Several exhaust pipes (19) are fixedly connected to the outer wall of the rotating connecting ring (18). The exhaust pipes (19) extend downward into the holding mesh cylinder (7), and several nozzles (20) are connected to the outer wall of the exhaust pipes (19). The processing cylinder (2) is provided with an ice-making hollow drum (26) inside. The ice-making hollow drum (26) is fixedly connected to the rotating sleeve (8). The top cover (5) has a feeding port (21) at its upper end. The ice-making hollow drum (26) has a transition notch (22) corresponding to the feeding port (21) on its side wall. The processing cylinder (2) is also fixedly connected with a drain pipe (25) at its lower end. The ice-making drum (26) is hollow inside, and several arc-shaped cooling pipes (27) are provided inside the ice-making drum (26). The cooling pipes (27) are connected to the exhaust pipe (19), and the ice-making drum (26) is also filled with liquid nitrogen. The lower end of the top cover (5) is fixedly connected to an ice slag manufacturing structure (15) and a water spraying structure (16). The ice slag manufacturing structure (15) includes a holding shell (150). The holding shell (150) is fixed to the lower end of the top cover (5), and the end of the holding shell (150) near the ice-making hollow drum (26) slides against the surface of the ice-making hollow drum (26). The top end of the holding shell (150) is fixedly connected to a strong fan (155), and the air outlet of the strong fan (155) is located inside the holding shell (150). An ice scraper (151) is fixedly connected to the side wall of the holding shell (150). The curvature of the ice scraper (151) matches the surface curvature of the ice-making hollow drum (26), and the blade of the ice scraper (151) is attached to the surface of the ice-making hollow drum (26). An ice inlet (152) is provided on the side wall of the holding shell (150).

2. The deburring device for rubber parts according to claim 1, characterized in that, The lower end of the rotating sleeve (8) extends through the wall of the processing cylinder (2) to the bottom of the processing cylinder (2). A gear ring (9) is fixedly connected to the lower end of the rotating sleeve (8). A power gear (24) meshes with the side wall of the gear ring (9). A power motor (23) is fixedly connected to the lower end of the power gear (24).

3. The deburring device for rubber parts according to claim 1, characterized in that, The water spray structure (16) includes a mounting cover (160), which is fixedly connected to the lower end of the top cover (5) and is located on one side of the ice-making hollow drum (26). A water pump (161) is fixedly connected to the top of the mounting cover (160), and a water inlet pipe (162) is fixedly connected to the water inlet end of the water pump (161). The water inlet pipe (162) is connected to the water storage tank, and a water spray head (163) is fixedly connected to the water outlet end of the water pump (161).

4. The deburring device for rubber parts according to claim 3, characterized in that, The holding shell (150) and the mounting cover (160) are both provided with fitting openings (154) at the ends near the ice-making hollow drum (26), and the curvature of the fitting openings (154) matches the curvature of the surface of the ice-making hollow drum (26).

5. The deburring device for rubber parts according to claim 1, characterized in that, A shield (153) is fixedly connected to the side wall of the holding shell (150). An exhaust pipe (156) is fixedly connected inside the holding shell (150), and the air outlet of the exhaust pipe (156) faces the bottom of the inner part of the holding shell (150). An ice discharge pipe (157) is fixedly connected to the lower end of the holding shell (150), and the ice discharge pipe (157) communicates with the holding shell (150).

Images