Freezing and deburring device for silica gel products

Abstract

The invention relates to the technical field of silica gel product processing, in particular to a silica gel product freezing and deburring device which comprises a deburring machine body, and the deburring machine body comprises a box body, a low-temperature bin, a liquid nitrogen conveying pipe, a basket barrel and a cover plate; the driving mechanism comprises an overturning mechanism and a rotating mechanism, the overturning mechanism is arranged outside the box body and extends into the box body, the rotating mechanism is arranged on the surface of the overturning mechanism, and the basket barrel is arranged on the outer surface of the rotating mechanism; an air conveying structure which extends into the basket barrel and is used for assisting in scattering and discharging burrs is arranged on the bottom side of the basket barrel, and the air conveying structure comprises a fixing frame, a hollow shaft, a piston barrel and a piston rod. The freezing deburring device for the silica gel product has the advantages of being high in deburring efficiency, good in embrittlement uniformity, high in operation stability and the like, efficient and thorough deburring of the silica gel product is achieved, low-temperature treatment uniformity is improved, and comprehensiveness and high efficiency of deburring work are further guaranteed.

Description

Technical Field

[0001] This invention relates to the field of silicone product processing technology, and in particular to a device for freezing and deburring silicone products. Background Technology

[0002] Silicone products are widely used in many industries, including automotive, electronics, medical, and daily necessities, due to their excellent elasticity, resistance to high and low temperatures, and chemical stability. During the injection molding process of silicone products, excess burrs often form at the edges due to factors such as mold closing precision, material flowability, and molding process parameters. These burrs not only compromise the product's appearance but may also affect assembly accuracy and performance. Therefore, burr removal is a crucial step in the post-processing of silicone products.

[0003] Cryogenic deburring technology is currently the mainstream method for deburring silicone products. Its principle is to use a low-temperature medium such as liquid nitrogen to rapidly embrittle the silicone burrs, and then peel them off through mechanical agitation and airflow purging. Existing cryogenic deburring devices mostly use a rotating basket structure that tumbles the products. However, when processing large batches of silicone products, a large number of products tend to be squeezed and stacked together inside the basket. This prevents the embrittled burrs on some product surfaces from fully contacting the purging airflow or impact components. Not only are the burrs difficult to completely remove from the products, but the detached burrs also tend to entangle and accumulate, hindering the removal of other burrs and creating a vicious cycle that reduces the deburring effect. Therefore, a cryogenic deburring device for silicone products is proposed to solve the problems mentioned above. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a freezing deburring device for silicone products. In order to improve the efficiency of freezing deburring of silicone products, reduce the differences in burr embrittlement caused by uneven local temperature, and solve the problems of insufficient product tumbling and incomplete burr removal.

[0005] This invention provides a device for freezing and deburring silicone products, employing the following technical solution: A freezing deburring device for silicone products includes a deburring machine body, which includes a box, a low-temperature chamber, a liquid nitrogen delivery pipe, a basket, and a cover plate. A driving mechanism, comprising a flipping mechanism and a rotating mechanism, wherein the flipping mechanism is disposed outside the housing and extends into its interior, the rotating mechanism is disposed on the surface of the flipping mechanism, and the basket is disposed on the outer surface of the rotating mechanism; The bottom side of the basket is provided with an air supply structure extending into it to assist in breaking up and discharging burrs. The air supply structure includes a fixed frame, a hollow shaft, a piston cylinder and a piston rod. The fixed frame is located on one side of the flipping mechanism. The piston cylinder is fixedly connected to the inside of the fixed frame. The piston rod slides through the inside of the piston cylinder. The basket is equipped with a turbulence structure that cooperates with the gas supply structure. The turbulence structure includes a sleeve for sliding with the hollow shaft and a connecting cylinder fixedly connected to the sleeve. The sleeve has a docking hole that cooperates with the hollow shaft.

[0006] Optionally, the flipping mechanism includes a geared motor, a rotating shaft, and a mounting base. The geared motor is fixedly installed outside the housing. One end of the rotating shaft is connected to the output end of the geared motor, and the other end extends into the housing. The mounting base is fixedly installed in the middle of the housing where the rotating shaft is located. The rotating mechanism is located inside the mounting base and extends to its surface.

[0007] The advantages of adopting the above-mentioned optional solution are: the rotating shaft driven by the geared motor drives the mounting base to rotate, realizing the stable rotation drive of the flipping mechanism on the rotating mechanism and the basket. The mounting base provides a solid assembly foundation for the rotating mechanism, making the flipping and rotating actions smoothly connected, ensuring that the silicone products inside the basket are in contact with the low temperature environment in multiple postures, avoiding local dead corners, improving the uniformity of embrittlement, and ensuring the installation stability of the drive mechanism in the low temperature environment.

[0008] Optionally, the rotating mechanism includes a drive motor, a transmission gear, a cam, a connecting shaft, and a driven gear. The drive motor is fixedly mounted on the inner bottom wall of the mounting base. The transmission gear is fixedly mounted on the output end of the drive motor. The connecting shaft is rotatably mounted on the inner bottom wall of the mounting base and coaxially fixedly connected to the basket. The driven gear is fixedly mounted on the outside of the connecting shaft and meshes with the transmission gear. The cam is fixedly mounted on the top of the transmission gear and is used to drive the gas delivery structure to work.

[0009] The advantages of adopting the above-mentioned optional scheme are: by driving the motor through the meshing of the transmission gear and the driven gear, the connecting shaft drives the basket to rotate stably, and at the same time the cam rotates synchronously with the transmission gear to drive the air supply structure, realizing power reuse, so that the basket rotation and air supply action are coordinated and the continuity of operation is improved.

[0010] Optionally, the gas supply structure further includes an abutment block, a return spring, a check valve, a gas supply pipe, an air inlet pipe, and a rotary sealing joint. The abutment block is fixedly connected to the top end of the piston rod and abuts against the cam. The return spring is fixedly connected between the piston cylinder and the abutment block. There are two sets of check valves, which are respectively located at the connection between the piston cylinder and the hollow shaft and on the air inlet pipe. The gas supply pipe is rotatably connected to the hollow shaft for supplying gas into the basket. The air inlet pipe is used to supply gas into the piston cylinder. The rotary sealing joint is used to achieve a rotary sealing connection between the hollow shaft and the connecting shaft.

[0011] The advantages of adopting the above-mentioned optional scheme are: the piston rod is driven to slide back and forth by the cooperation of the cam and the abutment block, the return spring ensures smooth reset of the action, and the two sets of check valves realize one-way precise gas delivery, so that the gas delivery structure stably delivers gas into the basket, providing power for the deburring and discharge, improving the deburring removal efficiency, and ensuring the sealing performance in the low temperature environment.

[0012] Optionally, the hollow shaft extends into the peripheral wall inside the basket and has several air jet holes, the peripheral wall of the basket has sieve holes, and the hollow shaft is fixedly connected to the top end of the connecting shaft.

[0013] The advantages of adopting the above-mentioned optional scheme are: the gas is evenly sprayed into the basket through the air jet holes on the hollow shaft peripheral wall, and the gas assists in promoting the rapid discharge of brittle burrs, avoiding the accumulation of burrs and contamination of the products.

[0014] Optionally, the turbulence structure further includes a connecting rod, a connecting sleeve, a telescopic abutment rod, a spiral groove, a pin, a torsion spring, a buffer spring, and a floating ring. One end of the connecting rod is fixedly connected to the connecting cylinder, and the other end is fixedly connected to the connecting sleeve. The telescopic abutment rod is slidably installed inside the connecting sleeve. The end of the telescopic abutment rod away from the connecting sleeve abuts against the inner wall of the basket cylinder. The spiral groove is formed on the inner surface of the connecting cylinder. The pin is fixedly connected to the outer surface of the telescopic abutment rod and slides with the spiral groove. The torsion spring is fixedly connected to the end of the telescopic abutment rod away from the basket cylinder and is located between the telescopic abutment rod and the connecting cylinder. The torsion spring is used to drive the telescopic abutment rod to reset.

[0015] The beneficial effects of adopting the above-mentioned optional scheme are as follows: through the cooperation of the spiral groove and the pin shaft, the telescopic abutment rod can extend, retract and rotate as the turbulence structure operates. Combined with the transmission of the connecting rod and the connecting sleeve, the turbulence effect on the silicone products inside the basket is enhanced. The torsion spring ensures that the telescopic abutment rod is reset in time to avoid jamming, allowing the silicone products to be fully turned over and come into contact with the low-temperature gas, thereby improving the uniformity of embrittlement.

[0016] Optionally, the buffer spring is fixedly connected to the top end of the sleeve, the floating ring is fixedly installed on the top end of the buffer spring, and the buffer spring is connected to the outside of the hollow shaft. The buffer spring and the floating ring play a buffering role.

[0017] The beneficial effect of adopting the above-mentioned optional scheme is that by setting a buffer spring around the hollow shaft and connecting the sleeve and the floating ring, a buffering effect is achieved when the turbulence structure moves.

[0018] Optionally, the basket is further provided with a centrifugal transmission structure for stirring the silicone product in conjunction with the turbulence structure. The centrifugal transmission structure includes an annular seat, a sliding sleeve, connecting rods, a swing block, and a tension spring. The annular seat is disposed inside the basket and fixedly connected to the outer surface of the hollow shaft. The sliding sleeve slides radially along the annular seat. There are four sets of connecting rods. The two ends of the four sets of connecting rods are respectively hinged to the sliding sleeve and the annular seat. The swing block is hinged to the adjacent end of two adjacent sets of connecting rods. The connecting sleeve is fixedly connected to the top of the sliding sleeve.

[0019] The beneficial effects of adopting the above-mentioned optional scheme are: the centrifugal force generated by the rotation of the basket causes the sliding sleeve to slide radially along the annular seat, driving the connecting rod and the swing block to swing, and cooperating with the turbulence structure to stir the silicone product.

[0020] Optionally, the tension spring is fixedly connected between the sliding sleeve and the annular seat. When the basket rotates, the sliding sleeve drives the swing block to swing under the action of centrifugal force. The swing block is made of elastic material, and the end of it that contacts the silicone product is designed as an arc.

[0021] The advantages of adopting the above-mentioned optional solutions are: the tension spring ensures that the sliding sleeve returns to its original position in time when the basket stops rotating; and the use of an elastic material and an arc-shaped swing block can prevent scratching the products during mixing and can adapt to products of different sizes through elastic deformation, thereby improving the applicability of the device.

[0022] Optionally, the cryogenic chamber is embedded inside the box and fixedly connected to the box. One end of the liquid nitrogen delivery pipe penetrates the inner wall of the box and communicates with the inside of the cryogenic chamber, while the other end extends to the outside of the box for connecting to a liquid nitrogen supply device. The basket is located inside the cryogenic chamber and is indirectly driven to operate with the box through a rotating mechanism and a flipping mechanism. The cover plate closes to the open end of the basket.

[0023] The advantages of adopting the above-mentioned optional solution are: by embedding a cryogenic chamber inside the box and connecting the liquid nitrogen delivery pipe to the external liquid nitrogen supply equipment, a stable low-temperature environment is provided for the silicone products inside the basket.

[0024] In summary, the present invention has at least one of the following beneficial technical effects: 1. In this invention, when the rotating mechanism is in operation, the cam rotation drives the abutment block, which, under the action of the cam and the return spring, drives the piston rod to reciprocate within the piston cylinder. Gas enters the piston cylinder through the inlet pipe, passes through the check valve, hollow shaft, and gas delivery pipe, and is input into the basket cylinder, exiting from the jet holes on the peripheral wall of the hollow shaft. The rotating mechanism is linked with the gas delivery structure. As the basket cylinder rotates, the gas continuously impacts the silicone product, helping to break up burrs, and is discharged through the sieve holes on the peripheral wall of the basket cylinder, improving the deburring efficiency.

[0025] 2. In this invention, the hollow shaft slides into the sleeve of the turbulence structure. The mating hole on the sleeve provides pressurization guidance for gas delivery. Simultaneously, during the rotation of the hollow shaft, the jet holes on its peripheral wall eject gas, which, together with the connecting rod and telescopic abutment rod of the turbulence structure, creates a synergistic disturbance. At the same time, the telescopic abutment rod, through the cooperation of the spiral groove and the pin, achieves telescopic rotation, which, together with the airflow disturbance, forms a multi-dimensional turbulence effect. This allows the silicone products inside the basket to fully and evenly contact the low-temperature nitrogen gas, completely avoiding the burr embrittlement differences caused by uneven local temperatures.

[0026] 3. In this invention, when the basket rotates with the rotating mechanism, the sliding sleeve slides radially along the annular seat under the action of centrifugal force. The swing block is driven to swing through four sets of connecting rods, and at the same time, the telescopic abutment rod of the turbulence structure moves synchronously. This linkage makes the telescopic disturbance of the turbulence structure and the swing stirring of the centrifugal transmission structure form an interlaced three-dimensional stirring effect, so that the silicone product is fully tumbled in the basket, ensuring that each part is subjected to low temperature treatment and mechanical action, and efficiently removing burrs.

[0027] 4. In this invention, the hollow shaft follows the rotation of the basket, and the gas it transports provides auxiliary power for deburring. The linkage between the turbulence structure and the centrifugal transmission structure ensures that the product is uniformly brittle. All three operate synchronously under the drive of the rotating mechanism, so that the silicone product forms a synergy from entering the low temperature chamber to completing the deburring process. Attached Figure Description

[0028] Figure 1 This is a three-dimensional view of the overall structure of the present invention; Figure 2 This is a cross-sectional view of the structure of the present invention; Figure 3 This is a schematic diagram of the flipping mechanism and the basket of the present invention; Figure 4 This is a schematic diagram of the basket of the present invention; Figure 5 This is a cross-sectional view of the basket of the present invention; Figure 6 This is a cross-sectional view of the gas transmission structure of the present invention; Figure 7 This is a schematic diagram of the rotating mechanism, the turbulence structure, and the centrifugal transmission structure of the present invention; Figure 8 This is a cross-sectional view of the connecting cylinder of the present invention; Figure 9 This is a schematic diagram of the centrifugal transmission structure of the present invention.

[0029] Explanation of reference numerals in the attached figures: 1. Deburring machine body; 11. Box body; 12. Cryogenic chamber; 13. Liquid nitrogen delivery pipe; 14. Basket; 15. Cover plate; 2. Tilting mechanism; 21. Gear motor; 22. Rotating shaft; 23. Mounting base; 3. Rotating mechanism; 31. Drive motor; 32. Transmission gear; 33. Cam; 34. Connecting shaft; 35. Driven gear; 4. Gas supply structure; 41. Fixing frame; 42. Hollow shaft; 43. Piston cylinder; 44. Piston rod; 45. Abutment block; 46. Reset spring 47. Spring; 48. Check valve; 49. Gas supply pipe; 410. Air inlet pipe; 5. Rotary sealing joint; 6. Turbulence structure; 51. Sleeve; 52. Connecting cylinder; 53. Butt joint hole; 54. Connecting rod; 55. Connecting sleeve; 56. Telescopic abutment rod; 57. Spiral groove; 58. Pin; 59. Torsion spring; 510. Buffer spring; 511. Floating ring; 6. Centrifugal transmission structure; 61. Annular seat; 62. Sliding sleeve; 63. Connecting rod; 64. Swing block; 65. Tension spring. Detailed Implementation

[0030] The following is in conjunction with the appendix Figures 1 to 9 The present invention will be described in further detail below.

[0031] This invention discloses a device for cryogenic deburring of silicone products. Please refer to [link / reference]. Figure 1 and Figure 2 A device for freezing and deburring silicone products includes a deburring machine body 1, which includes a housing 11, a low-temperature chamber 12, a liquid nitrogen delivery pipe 13, a basket 14, and a cover plate 15; and a driving mechanism, which includes a flipping mechanism 2 and a rotating mechanism 3. The flipping mechanism 2 is disposed outside the housing 11 and extends into it, the rotating mechanism 3 is disposed on the surface of the flipping mechanism 2, and the basket 14 is disposed on the outer surface of the rotating mechanism 3.

[0032] Specifically, the cryogenic chamber 12 is embedded inside the housing 11 and fixedly connected to the housing 11. One end of the liquid nitrogen delivery pipe 13 penetrates the inner wall of the housing 11 and communicates with the interior of the cryogenic chamber 12, while the other end extends to the outside of the housing 11 to connect to the liquid nitrogen supply equipment. The basket 14 is located inside the cryogenic chamber 12 and is indirectly driven to operate by the housing 11 through the rotating mechanism 3 and the flipping mechanism 2. The cover plate 15 covers the open end of the basket 14. The liquid nitrogen delivery pipe 13 enables precise delivery of liquid nitrogen, ensuring stable temperature inside the cryogenic chamber 12. The cover plate 15 prevents leakage of the cryogenic medium and product detachment. Together with the flipping mechanism 2 and the rotating mechanism 3 driving the basket 14, it ensures that the product stably completes the embrittlement process in a sealed cryogenic environment.

[0033] Please see Figure 3 and Figure 4 To achieve the effect of rotating the basket 14 for loading and unloading within the housing 11, in this embodiment, the rotating mechanism 2 includes a geared motor 21, a rotating shaft 22, and a mounting base 23. The geared motor 21 is fixedly installed outside the housing 11. One end of the rotating shaft 22 is connected to the output end of the geared motor 21, and the other end extends into the housing 11. The mounting base 23 is fixedly installed in the middle of the rotating shaft 22 inside the housing 11. The rotating mechanism 3 is located inside the mounting base 23 and extends to its surface. Through the drive motor 31 meshing with the driven gear 35 via the transmission gear 32, the connecting shaft 34 drives the basket 14 to rotate stably. At the same time, the cam 33 rotates synchronously with the transmission gear 32 to drive the air supply structure 4, achieving power reuse, simplifying the device structure, reducing energy consumption, and enabling the rotation of the basket 14 and the air supply action to coordinate, thus improving the continuity of operation.

[0034] Please see Figure 4 , Figure 5 and Figure 7 In order to achieve the self-rotation drive of the basket 14 and provide power to the gas delivery structure 4, in this embodiment, the rotating mechanism 3 includes a drive motor 31, a transmission gear 32, a cam 33, a connecting shaft 34, and a driven gear 35. The drive motor 31 is fixedly installed on the inner bottom wall of the mounting base 23, the transmission gear 32 is fixedly installed on the output end of the drive motor 31, the connecting shaft 34 is rotatably installed on the inner bottom wall of the mounting base 23 and is coaxially fixedly connected to the basket 14, the driven gear 35 is fixedly installed on the outside of the connecting shaft 34 and meshes with the transmission gear 32, and the cam 33 is fixedly installed on the top of the transmission gear 32 for driving the gas delivery structure 4 to work. The piston rod 44 is driven to slide back and forth by the cooperation of the cam 33 and the abutment block 45. The return spring 46 ensures smooth reset of the action. Two sets of check valves 47 realize one-way precise gas delivery. The rotary sealing joint 410 ensures that the hollow shaft 42 and the connecting shaft 34 are sealed and leak-proof when rotating, so that the gas delivery structure 4 can stably deliver gas into the basket 14, providing power for the deburring and discharge, improving the deburring removal efficiency, and ensuring the sealing performance in low temperature environment.

[0035] Please see Figure 3 , Figure 4 , Figure 5 and Figure 6 In order to supply gas to assist in breaking up and expelling burrs, in this embodiment, the bottom side of the basket 14 is provided with a gas supply structure 4 extending into its interior for assisting in breaking up and expelling burrs. The gas supply structure 4 includes a fixed frame 41, a hollow shaft 42, a piston cylinder 43 and a piston rod 44. The fixed frame 41 is located on one side of the flipping mechanism 2, the piston cylinder 43 is fixedly connected to the inside of the fixed frame 41, and the piston rod 44 slides through the inside of the piston cylinder 43.

[0036] Specifically, in order to achieve unidirectional precise gas delivery and rotary sealing, the gas delivery structure 4 also includes an abutment block 45, a return spring 46, a check valve 47, a gas delivery pipe 48, an air inlet pipe 49, and a rotary sealing joint 410. The abutment block 45 is fixedly connected to the top of the piston rod 44 and abuts against the cam 33. The return spring 46 is fixedly connected between the piston cylinder 43 and the abutment block 45. There are two sets of check valves 47, which are respectively set at the connection between the piston cylinder 43 and the hollow shaft 42 and on the air inlet pipe 49. The gas delivery pipe 48 is rotatably connected to the hollow shaft 42 for delivering gas into the basket 14. The air inlet pipe 49 is used to introduce gas into the piston cylinder 43. The rotary sealing joint 410 is used to achieve a rotary sealing connection between the hollow shaft 42 and the connecting shaft 34.

[0037] It should be noted that, in order to achieve uniform gas spraying and smooth removal of burrs, and to ensure the continuity of the gas delivery channel, the hollow shaft 42 extends into the inner peripheral wall of the basket 14 and has several air jet holes. The peripheral wall of the basket 14 has sieve holes, and the hollow shaft 42 is fixedly connected to the top of the connecting shaft 34. The air jet holes on the peripheral wall of the hollow shaft 42 allow for uniform gas spraying into the basket 14. Combined with the sieve holes on the peripheral wall of the basket 14, the gas quickly removes brittle burrs, preventing burr accumulation and contamination of the product. Simultaneously, the fixed connection between the hollow shaft 42 and the connecting shaft 34 ensures a smooth gas delivery channel, improves gas utilization, and the uniform distribution of the air jet holes ensures full contact between the product and the airflow, further enhancing the burr removal effect and improving the cleanliness of the deburred area.

[0038] Please see Figure 5 , Figure 7 , Figure 8 and Figure 9 In order to enhance the airflow disturbance inside the basket 14 and enable the silicone product to fully contact the low-temperature gas, in this embodiment, the basket 14 is provided with a turbulence structure 5 that cooperates with the gas supply structure 4. The turbulence structure 5 includes a sleeve 51 for sliding with the hollow shaft 42 and a connecting cylinder 52 fixedly connected to the sleeve 51. The sleeve 51 is provided with a docking hole 53 that cooperates with the hollow shaft 42.

[0039] Specifically, in order to achieve a multi-dimensional turbulence effect and improve the uniformity of silicone product turning, the turbulence structure 5 also includes a connecting rod 54, a connecting sleeve 55, a telescopic abutment rod 56, a spiral groove 57, a pin 58, a torsion spring 59, a buffer spring 510, and a floating ring 511. One end of the connecting rod 54 is fixedly connected to the connecting cylinder 52, and the other end is fixedly connected to the connecting sleeve 55. The telescopic abutment rod 56 is slidably installed inside the connecting sleeve 55. The end of the telescopic abutment rod 56 away from the connecting sleeve 55 abuts against the inner wall of the basket cylinder 14. The spiral groove 57 is opened on the inner surface of the connecting cylinder 52. The pin 58 is fixedly connected to the outer surface of the telescopic abutment rod 56 and slides with the spiral groove 57. The torsion spring 59 is fixedly connected to the end of the telescopic abutment rod 56 away from the basket cylinder 14 and is located between the telescopic abutment rod 56 and the connecting cylinder 52. The torsion spring 59 is used to drive the telescopic abutment rod 56 to reset.

[0040] The spiral groove 57 cooperates with the pin 58 to enable the telescopic abutment rod 56 to extend, retract, and rotate as the turbulence structure 5 operates. Combined with the transmission of the connecting rod 54 and the connecting sleeve 55, it enhances the turbulence effect on the silicone products inside the basket 14. The torsion spring 59 ensures that the telescopic abutment rod 56 is reset in time to avoid jamming, allowing the silicone products to fully turn over and come into contact with the low-temperature gas, improving the uniformity of embrittlement. At the same time, the telescopic structure is adaptable to silicone products with different stacking states, improving the applicability of the device.

[0041] It should be noted that the buffer spring 510 is fixedly connected to the top of the sleeve 51, and the floating ring 511 is fixedly installed on the top of the buffer spring 510. The buffer spring 510 is connected around the outside of the hollow shaft 42. The buffer spring 510 and the floating ring 511 play a buffering role.

[0042] Please see Figure 4 , Figure 5 , Figure 7 and Figure 9In order to achieve the effect of improving the deburring effect in conjunction with the turbulence structure 5, in this embodiment, the basket 14 is also provided with a centrifugal transmission structure 6 for stirring the silicone product in conjunction with the turbulence structure 5. The centrifugal transmission structure 6 includes an annular seat 61, a sliding sleeve 62, a connecting rod 63, a swing block 64 and a tension spring 65. The annular seat 61 is disposed inside the basket 14 and is fixedly connected to the outer surface of the hollow shaft 42. The sliding sleeve 62 slides radially along the annular seat 61. There are four sets of connecting rods 63. The two ends of the four sets of connecting rods 63 are respectively hinged to the sliding sleeve 62 and the annular seat 61. The swing block 64 is hinged to the near end of two adjacent sets of connecting rods 63. The connecting sleeve 55 is fixedly connected to the top of the sliding sleeve 62. The turbulence structure 5 and the centrifugal transmission structure 6 are fixedly connected by the connecting sleeve 55, so that the two work together. Under the action of centrifugal force, the sliding sleeve 62 of the centrifugal transmission structure 6 drives the connecting rod 63 and the swing block 64 to swing. Together with the telescopic abutment rod 56 of the turbulence structure 5, a multi-dimensional stirring effect is formed, which completely avoids product accumulation, makes the product cool and turbulent evenly, improves the consistency of embrittlement and deburring, and the setting of four sets of connecting rods 63 ensures stable swing and improves the reliability of stirring.

[0043] Specifically, the tension spring 65 is fixedly connected between the sliding sleeve 62 and the annular seat 61. When the basket 14 rotates, the sliding sleeve 62 drives the swing block 64 to swing under the action of centrifugal force. The swing block 64 is made of elastic material, and the end that contacts the silicone product is rounded. By setting the tension spring 65, the sliding sleeve 62 is ensured to return to its original position in time when the basket 14 stops rotating, avoiding component jamming that may affect the next operation. The elastic material and rounded swing block 64 can avoid scratching the product when stirring, and can also adapt to products of different sizes through elastic deformation, improving the applicability of the device. At the same time, the centrifugal force drives the swing, further enhancing the synergistic stirring effect with the turbulence structure 5.

[0044] Combined with appendix Figures 1 to 9 The working principle of the above embodiments is as follows: Before starting the operation, the silicone products to be processed are placed inside the basket 14, and the cover plate 15 is closed to prevent subsequent leakage of the low-temperature medium and product detachment. Then, the liquid nitrogen supply equipment is turned on, and liquid nitrogen is accurately delivered to the low-temperature chamber 12 embedded inside the box 11 through the liquid nitrogen delivery pipe 13, quickly establishing and maintaining a stable low-temperature environment, providing the necessary conditions for the embrittlement process of the silicone products' rough edges. At the same time, the drive mechanism is started synchronously, and the geared motor 21 fixed outside the box 11 in the flipping mechanism 2 outputs power to drive the rotating shaft 22 to rotate, which in turn drives the mounting base 23 fixed in the middle of the rotating shaft 22 to rotate synchronously. The rotation of the mounting base 23 can drive the rotating mechanism 3 and the basket 14 on it to flip, ensuring that the products in the basket 14 can be evenly contacted with the low-temperature environment in the low-temperature chamber 12, improving the uniformity of embrittlement. As the core power component, the rotating mechanism 3, after the drive motor 31 on the inner bottom wall of its mounting base 23 is started, drives the transmission gear 32 at the output end to rotate. Through the meshing transmission of the transmission gear 32 and the driven gear 35, it drives the connecting shaft 34, which is coaxially fixedly connected to the basket 14, to rotate, ultimately achieving the stable rotation of the basket 14. At the same time, the cam 33 fixed to the top of the transmission gear 32 rotates synchronously with the transmission gear 32, providing driving power for the air supply structure 4. In the air supply structure 4, the cam 33 periodically abuts against the abutment block 45, driving... The piston rod 44 slides back and forth inside the piston cylinder 43, and the return spring 46 ensures that the piston rod 44 can return to its original position smoothly after each action. Two sets of check valves 47 are installed on the air inlet pipe 49 and the connection between the piston cylinder 43 and the hollow shaft 42, respectively, to achieve one-way precise gas delivery and avoid backflow. The rotary sealing joint 410 ensures the sealed connection between the hollow shaft 42 and the connecting shaft 34 in the rotating state to prevent gas leakage. Finally, the gas extends through the hollow shaft 42 to the jet hole on the inner peripheral wall of the basket 14 and is evenly sprayed into the basket 14. During the rotation of the basket 14, its internal turbulence structure 5 and centrifugal transmission structure 6 are fixedly connected through a connecting sleeve 55, thus cooperating to form a multi-dimensional stirring and turbulence effect. In the centrifugal transmission structure 6, the annular seat 61, which is fixedly connected to the outer surface of the hollow shaft 42, rotates synchronously with the hollow shaft 42. Under the action of centrifugal force, the sliding sleeve 62 slides outward along the radial direction of the annular seat 61. Through four sets of hinged connecting rods 63, the swing blocks 64 at the ends of the adjacent connecting rods 63 swing, and the tension spring 65 is stretched to store the return spring force. The swing block 64 is made of elastic material and the end in contact with the product is set to be arc-shaped, which can avoid scratching the product and also... The elastic deformation adapts to products of different sizes; when the turbulence structure 5 operates synchronously, the spiral groove 57 on the inner surface of the connecting cylinder 52 slides and engages with the pin 58 fixed on the outer surface of the telescopic abutment rod 56, driving the telescopic abutment rod 56 to perform a compound motion of extension and rotation along the connecting sleeve 55. The end of the telescopic abutment rod 56 away from the connecting sleeve 55 abuts against the inner wall of the basket 14, further enhancing the turbulence effect on the airflow and products in the chamber; the torsion spring 59 ensures that the telescopic abutment rod 56 returns to its original position in time after action, avoiding jamming; the buffer spring 510 surrounding the hollow shaft 42 and the floating ring 511 at the top play a buffering and vibration reduction role; Under the combined effects of low temperature and multi-dimensional stirring and turbulence, the burrs on the silicone products inside the basket 14 quickly become brittle, while the silicone body remains intact due to its strong toughness. At this time, the gas delivered by the gas supply structure 4 not only intensifies the disintegration of the brittle burrs, but also drives the disintegrated burrs to be discharged through the sieve holes on the periphery of the basket 14, thus completing the burr removal operation. After the operation is completed, the cover plate 15 is opened, and the basket 14 is rotated to the preset feeding angle by the flipping mechanism 2, so that the processed silicone products can be taken out, and the entire operation process is completed.

[0045] The above are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A device for freezing and deburring silicone products, characterized in that: The deburring machine body (1) includes a box (11), a cryogenic chamber (12), a liquid nitrogen delivery pipe (13), a basket (14), and a cover plate (15). The driving mechanism includes a flipping mechanism (2) and a rotating mechanism (3). The flipping mechanism (2) is disposed outside the box (11) and extends into its interior. The rotating mechanism (3) is disposed on the surface of the flipping mechanism (2). The basket (14) is disposed on the outer surface of the rotating mechanism (3). The bottom side of the basket (14) is provided with an air supply structure (4) extending into its interior to assist in breaking up and discharging burrs. The air supply structure (4) includes a fixed frame (41), a hollow shaft (42), a piston cylinder (43), and a piston rod (44). The fixed frame (41) is located on one side of the flipping mechanism (2). The piston cylinder (43) is fixedly connected to the inside of the fixed frame (41). The piston rod (44) slides through the inside of the piston cylinder (43). The basket (14) is provided with a turbulence structure (5) that cooperates with the gas supply structure (4). The turbulence structure (5) includes a sleeve (51) for sliding with the hollow shaft (42) and a connecting sleeve (52) fixedly connected to the sleeve (51). The sleeve (51) is provided with a docking hole (53) that cooperates with the hollow shaft (42).

2. The device for freezing and deburring silicone products according to claim 1, characterized in that: The flipping mechanism (2) includes a geared motor (21), a rotating shaft (22), and a mounting base (23). The geared motor (21) is fixedly installed outside the housing (11). One end of the rotating shaft (22) is connected to the output end of the geared motor (21), and the other end extends into the housing (11). The mounting base (23) is fixedly installed in the middle of the housing (11) where the rotating shaft (22) is located. The rotating mechanism (3) is located inside the mounting base (23) and extends to its surface.

3. The device for freezing and deburring silicone products according to claim 2, characterized in that: The rotating mechanism (3) includes a drive motor (31), a transmission gear (32), a cam (33), a connecting shaft (34), and a driven gear (35). The drive motor (31) is fixedly installed on the inner bottom wall of the mounting base (23). The transmission gear (32) is fixedly installed on the output end of the drive motor (31). The connecting shaft (34) is rotatably installed on the inner bottom wall of the mounting base (23) and coaxially fixedly connected to the basket (14). The driven gear (35) is fixedly installed on the outside of the connecting shaft (34) and meshes with the transmission gear (32). The cam (33) is fixedly installed on the top of the transmission gear (32) and is used to drive the gas transmission structure (4) to work.

4. The device for freezing and deburring silicone products according to claim 3, characterized in that: The gas delivery structure (4) further includes an abutment block (45), a return spring (46), a check valve (47), a gas delivery pipe (48), an air inlet pipe (49), and a rotary sealing joint (410). The abutment block (45) is fixedly connected to the top of the piston rod (44) and abuts against the cam (33). The return spring (46) is fixedly connected between the piston cylinder (43) and the abutment block (45). There are two sets of check valves (47). The check valve (47) is respectively installed at the connection between the piston cylinder (43) and the hollow shaft (42) and on the air inlet pipe (49). The air supply pipe (48) is rotatably connected to the hollow shaft (42) for supplying gas into the basket (14). The air inlet pipe (49) is used to supply air into the piston cylinder (43). The rotary sealing joint (410) is used to realize the rotary sealing connection between the hollow shaft (42) and the connecting shaft (34).

5. The device for freezing and deburring silicone products according to claim 4, characterized in that: The hollow shaft (42) extends into the peripheral wall inside the basket (14) and has several air jet holes. The peripheral wall of the basket (14) has sieve holes. The hollow shaft (42) is fixedly connected to the top end of the connecting shaft (34).

6. The device for freezing and deburring silicone products according to claim 1, characterized in that: The turbulence structure (5) further includes a connecting rod (54), a connecting sleeve (55), a telescopic abutment rod (56), a spiral groove (57), a pin (58), a torsion spring (59), a buffer spring (510), and a floating ring (511). One end of the connecting rod (54) is fixedly connected to the connecting cylinder (52), and the other end is fixedly connected to the connecting sleeve (55). The telescopic abutment rod (56) is slidably installed inside the connecting sleeve (55), with the end of the telescopic abutment rod (56) away from the connecting sleeve (55). The spiral groove (57) is formed on the inner surface of the connecting cylinder (52) and abuts against the inner wall of the basket (14). The pin (58) is fixedly connected to the outer surface of the telescopic abutment rod (56) and slides with the spiral groove (57). The torsion spring (59) is fixedly connected to the end of the telescopic abutment rod (56) away from the basket (14) and is located between the telescopic abutment rod (56) and the connecting cylinder (52). The torsion spring (59) is used to drive the telescopic abutment rod (56) to reset.

7. The device for freezing and deburring silicone products according to claim 6, characterized in that: The buffer spring (510) is fixedly connected to the top end of the sleeve (51), and the floating ring (511) is fixedly installed on the top end of the buffer spring (510). The buffer spring (510) is connected around the outside of the hollow shaft (42). The buffer spring (510) and the floating ring (511) play a buffering role.

8. The device for freezing and deburring silicone products according to claim 6, characterized in that: The basket (14) is also provided with a centrifugal transmission structure (6) for stirring silicone products in conjunction with the turbulence structure (5). The centrifugal transmission structure (6) includes an annular seat (61), a sliding sleeve (62), a connecting rod (63), a swing block (64), and a tension spring (65). The annular seat (61) is located inside the basket (14) and is fixedly connected to the outer surface of the hollow shaft (42). The sliding sleeve (62) slides radially along the annular seat (61). There are four sets of connecting rods (63). The two ends of the four sets of connecting rods (63) are respectively hinged to the sliding sleeve (62) and the annular seat (61). The swing block (64) is hinged to the near end of two adjacent sets of connecting rods (63). The connecting sleeve (55) is fixedly connected to the top of the sliding sleeve (62).

9. A device for freezing and deburring silicone products according to claim 8, characterized in that: The tension spring (65) is fixedly connected between the sliding sleeve (62) and the annular seat (61). When the basket (14) rotates, the sliding sleeve (62) drives the swing block (64) to swing under the action of centrifugal force. The swing block (64) is made of elastic material, and the end of it that contacts the silicone product is set in an arc shape.

10. The device for freezing and deburring silicone products according to claim 1, characterized in that: The cryogenic chamber (12) is embedded inside the box (11) and fixedly connected to the box (11). One end of the liquid nitrogen delivery pipe (13) penetrates the inner wall of the box (11) and communicates with the inside of the cryogenic chamber (12). The other end extends to the outside of the box (11) for connecting to the liquid nitrogen supply equipment. The basket (14) is located inside the cryogenic chamber (12) and is indirectly driven to operate with the box (11) through the rotating mechanism (3) and the flipping mechanism (2). The cover plate (15) covers the opening end of the basket (14).

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