A cryogenic trimming machine with positioning function

Abstract

This utility model discloses a cryogenic trimming machine with positioning function, belonging to the field of cryogenic trimming technology. It includes a machine body housing with a cryogenic chamber connected to the outside. Electric push rods are symmetrically fixedly installed on both sides of the machine body housing. The output end of each electric push rod passes through the machine body housing and is fixedly connected to a connecting rod that is slidably embedded in the inner wall of the cryogenic chamber. A connecting plate is fixedly connected to the end of the connecting rod away from the electric push rod. Two limiting guide rods are symmetrically slidably connected through the connecting plate. An arc-shaped clamping slide is fixedly connected to the ends of the two limiting guide rods away from the connecting plate. A buffer spring is sleeved on the outer side of each limiting guide rod. The two ends of the buffer spring are fixedly connected to the connecting plate and the arc-shaped clamping slide, respectively. This utility model can effectively position and limit the roller, preventing the roller from shaking or even damaging the equipment under heavy load, thus ensuring the safety of equipment operation.

Description

Technical Field

[0001] This utility model relates to the field of cryogenic trimming technology, specifically to a cryogenic trimming machine with positioning function. Background Technology

[0002] A cryogenic trimming machine is an automated trimming device for elastomer products such as rubber, silicone, and thermoplastic elastomers. Its core working principle is to use low-temperature freezing technology with refrigerants such as liquid nitrogen to quickly make the excess burrs on the surface of the product lose elasticity and become brittle and hard. Then, through physical methods such as high-speed spraying of frozen particles or mechanical vibration, the brittle burrs are precisely peeled off without damaging the product itself.

[0003] However, many existing cryogenic trimming machines do not have a positioning component for the rollers. When the rollers rotate under the drive of the motor, they will wobble slightly. When the load inside the rollers is large, the wobble will be more violent, and damage, displacement and metal deformation may even occur, resulting in unnecessary losses.

[0004] Therefore, there is an urgent need to propose a trimming device to position and limit the roller, prevent the roller from shaking or even damaging the device when under heavy load, and ensure the safety of the device operation. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model proposes a cryogenic trimming machine with a positioning function, which solves the problem that the rollers in the cryogenic trimming machine wobble or even get damaged during operation due to the lack of a positioning function.

[0006] This utility model provides a cryogenic trimming machine with positioning function, including a machine body housing. The machine body housing has a cryogenic chamber communicating with the outside. Electric push rods are symmetrically fixedly installed on both sides of the machine body housing. The output end of each electric push rod passes through the machine body housing and is fixedly connected to a connecting rod that is slidably embedded in the inner wall of the cryogenic chamber. A connecting plate is fixedly connected to the end of each connecting rod away from the electric push rod. Two limiting guide rods are symmetrically slidably connected through the connecting plate. The ends of the two limiting guide rods away from the connecting plate are jointly fixedly connected to... The arc-shaped clamping slide has buffer springs sleeved on the outer side of the limiting guide rod. The two ends of the buffer springs are fixedly connected to the connecting plate and the arc-shaped clamping slide, respectively. A fixed seat is rotatably installed between the inner walls of the two sides of the freezer compartment through bearings. A first drive shaft is fixedly installed on the middle section of the fixed seat. A second drive shaft is rotatably installed on one side of the first drive shaft through bearings. A trimming roller is fixedly installed at the end of the second drive shaft away from the first drive shaft. An annular slide rail that is slidably connected to the arc-shaped clamping slide is fixedly installed on the outer wall of the middle part of the trimming roller.

[0007] Furthermore, a rectangular array of threaded grooves is provided on one side of the housing, and the threaded grooves are respectively located at the four corners of the connection between the freezer compartment and the outside. Four positioning slide rods are also symmetrically fixedly connected to one side of the housing.

[0008] Furthermore, two first hinge seats are vertically and fixedly connected at intervals on one side of the fuselage box. Each first hinge seat is hinged with a telescopic plate, and a telescopic frame is slidably connected to one side of the telescopic plate.

[0009] Furthermore, each telescopic frame is hinged with a second hinge seat, and a compartment door is fixedly connected to the same side of the two second hinge seats. Four sliding seats that are slidably connected to the positioning slide rod are symmetrically fixed to both sides of the compartment door. A sealing strip adapted to the freezer compartment is glued to the inside of the compartment door.

[0010] Furthermore, two handles are symmetrically fixedly connected to one side of the compartment door, and a first rotating shaft is rotatably installed on the inner wall of one side of the compartment door via a bearing. One end of the first rotating shaft passes through the compartment door and is fixedly connected to a hand-adjusting turntable.

[0011] Furthermore, the first rotating shaft is fixedly mounted on the rod inside the compartment door, and the outer ring of the rotating shaft is meshed with four driven gears in a rectangular array. The middle of each driven gear is fixedly connected to a second rotating shaft that is rotatably connected to the inner wall of the compartment door through a bearing.

[0012] Furthermore, each of the driven gears has a micro gear meshing with it on the side away from the driving gear. Each micro gear has a fastening bolt fixedly connected to its middle part by a bearing and rotatingly connected to the inner wall of the compartment door. One end of the fastening bolt passes through the compartment door and extends outward. The fastening bolt is threadedly connected to a threaded groove.

[0013] As can be seen from the above technical solution, the cryogenic trimming machine with positioning function provided by this utility model has at least the following beneficial effects: (1) By setting the trimming roller, when the trimming roller needs to be positioned, the electric push rod is started. The output end of the electric push rod passes through the machine body and pushes the connecting rod to slide along the inner wall of the freezer compartment. The connecting rod drives the connecting plate at the end to move synchronously. The limit guide rod that is connected through the connecting plate then drives the arc-shaped clamping slide to approach the trimming roller until the arc-shaped clamping slide and the annular slide rail on the outer wall of the middle part of the trimming roller form a sliding connection. At this time, the buffer spring sleeved on the outside of the limit guide rod can provide a buffer force between the connecting plate and the arc-shaped clamping slide, avoiding hard contact between the arc-shaped clamping slide and the annular slide rail and causing damage to the components. At the same time, when the trimming roller is rotated by the second drive shaft, the annular slide rail can slide stably along the arc-shaped clamping slide, which does not affect the normal rotation of the trimming roller, and can accurately position and limit it, effectively preventing the trimming roller from shaking violently, shifting or even deforming metal when the load is large, and ensuring the safety of equipment operation. (2) By setting up a door, after the door is closed, the hand-adjusting turntable is rotated. The hand-adjusting turntable drives the first rotating shaft to rotate under the action of the bearing on the inner wall of the door. The driving gear on the first rotating shaft meshes with four driven gears. The driven gear rotates around the bearing on the inner wall of the door through the second rotating shaft. Then the driven gear meshes with the micro gear, which drives the fastening bolt in the middle of the micro gear to rotate, so that the fastening bolt is threadedly connected to the threaded groove on the body box, and the door is firmly fixed to one side of the body box. The sealing strip bonded to the inner side of the door can fit tightly with the opening of the freezer compartment, reducing the loss of low-temperature refrigerant in the freezer compartment and ensuring the freezing and trimming effect. In addition, the sliding seats on both sides of the door are slidably connected to the positioning slide rod of the body box. With the linkage of the first hinge seat, telescopic plate, telescopic frame and the second hinge seat, the stability of the door during opening and closing can be ensured. The handle makes it convenient for the operator to open and close the door, further improving the ease of use of the equipment. Attached Figure Description

[0014] To more clearly illustrate the specific embodiments of this utility model, the accompanying drawings used in the specific embodiments will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to scale. Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 for Figure 1 A structural diagram from another perspective; Figure 3 This is a schematic diagram of the internal structure of the central storage door of this utility model; Figure 4 This is a schematic diagram of the inner structure of the central storage door of this utility model; Figure 5 This is a schematic diagram of the structure of the freezer compartment in this utility model; Figure 6This is a schematic diagram of the trimming roller in this utility model; Figure label: 1. Body housing; 2. Freezer compartment; 3. Threaded groove; 4. Positioning slide rod; 5. First hinge seat; 6. Telescopic plate; 7. Telescopic frame; 8. Second hinge seat; 9. Compartment door; 10. Handle; 11. Sliding seat; 12. First rotating shaft; 13. Manual adjustment dial; 14. Drive gear; 15. Driven gear; 16. Second rotating shaft; 17. Micro gear; 18. Fastening bolt; 19. Sealing strip; 20. First drive shaft; 21. Fixed seat; 22. Second drive shaft; 23. Trimming roller; 24. Circular slide rail; 25. Electric push rod; 26. Connecting rod; 27. Connecting plate; 28. Limiting guide rod; 29. ​​Buffer spring; 30. Arc-shaped clamping slide seat. Detailed Implementation

[0015] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0016] like Figure 1 , Figure 2 , Figure 5 and Figure 6As shown, a preferred embodiment of the present invention provides a cryogenic trimming machine with a positioning function, comprising a body housing 1. The body housing 1 has a cryogenic chamber 2 communicating with the outside. Electric push rods 25 are symmetrically fixedly installed on both sides of the body housing 1. The output end of each electric push rod 25 passes through the body housing 1 and is fixedly connected to a connecting rod 26 that is slidably embedded in the inner wall of the cryogenic chamber 2. A connecting plate 27 is fixedly connected to the end of the connecting rod 26 away from the electric push rod 25. Two limiting guide rods 28 are symmetrically slidably connected through the connecting plate 27. The ends of the two limiting guide rods 28 away from the connecting plate 27 are jointly fixedly connected to... An arc-shaped clamping slide 30 is provided, and buffer springs 29 are sleeved on the outer side of the limiting guide rod 28. The two ends of the buffer springs 29 are fixedly connected to the connecting plate 27 and the arc-shaped clamping slide 30, respectively. A fixed seat 21 is rotatably installed between the inner walls of the two sides of the freezing chamber 2 via bearings. A first drive shaft 20 is fixedly installed on the middle section of the fixed seat 21. A second drive shaft 22 is rotatably installed on one side of the first drive shaft 20 via bearings. A trimming roller 23 is fixedly installed at the end of the second drive shaft 22 away from the first drive shaft 20. An annular slide rail 24 that is slidably connected to the arc-shaped clamping slide 30 is fixedly installed on the outer wall of the middle part of the trimming roller 23. The machine body 1 provides installation support and basic frame for each component. The freezing chamber 2 is the core space for carrying out low-temperature trimming operations. An electric push rod 25 provides power to push the positioning related components to move. A connecting rod 26 transmits the power of the electric push rod 25 to drive the movement of subsequent components. A connecting plate 27 connects to and synchronously drives the limiting guide rod 28 to move. The limiting guide rod 28 provides sliding guidance for the arc-shaped clamping slide 30. The buffer spring 29 provides cushioning force when the arc-shaped clamping slide 30 approaches the target part, preventing damage from hard contact. The arc-shaped clamping slide 30 cooperates with the annular slide rail 24 to achieve positioning and limiting of the trimming roller 23. The fixed base 21 provides rotational support for the first drive shaft 20. The first drive shaft 20 provides rotational support for the second drive shaft 22. The second drive shaft 22 drives the trimming roller 23 to rotate. The trimming roller 23 is used to hold the product to be trimmed and achieves burr removal through rotation and low temperature. The annular slide rail 24 is slidably connected to the arc-shaped clamping slide 30 to ensure the stability of the trimming roller 23 during rotation.

[0017] Please see Figure 1 , Figure 2 , Figure 4 and Figure 5 Furthermore, a rectangular array of threaded grooves 3 are formed on one side of the casing 1. These threaded grooves 3 are located at the four corners where the freezer compartment 2 connects to the outside. Four positioning slide rods 4 are also symmetrically fixed to one side of the casing 1. The threaded grooves 3 are used to engage with fastening components to securely fix the compartment door to the casing 1. The positioning slide rods 4 provide guidance for the sliding components of the compartment door, ensuring stable opening and closing of the door.

[0018] Please see Figure 2 Preferably, two first hinge seats 5 are vertically and fixedly connected at intervals on one side of the fuselage housing 1. Each first hinge seat 5 is hinged with a telescopic plate 6, and a telescopic frame 7 is slidably connected to one side of each telescopic plate 6. The first hinge seats 5 allow the telescopic plate 6 to rotate around them. The telescopic plate 6 and the telescopic frame 7 form a telescopic structure, providing movable support for the hatch door and ensuring smooth opening and closing of the hatch door.

[0019] Please see Figure 1 , Figure 2 and Figure 4 Furthermore, each telescopic frame 7 is hinged with a second hinge seat 8. A door 9 is fixedly connected to the same side of each of the two second hinge seats 8. Four sliding seats 11, slidably connected to the positioning slide rod 4, are symmetrically fixed to both sides of the door 9. A sealing strip 19, adapted to the freezer compartment 2, is adhered to the inner side of the door 9. The second hinge seats 8 allow the door 9 to rotate around them, achieving opening and closing. The sliding seats 11 cooperate with the positioning slide rod 4 to ensure that the door 9 opens and closes along a fixed trajectory. The sealing strip 19 reduces the loss of low-temperature refrigerant inside the freezer compartment 2, maintaining the low-temperature environment required for trimming.

[0020] Please see Figures 1-3 Preferably, two handles 10 are symmetrically fixedly connected to one side of the storage door 9. A first rotating shaft 12 is also rotatably mounted on the inner wall of one side of the storage door 9 via bearings. One end of the first rotating shaft 12 passes through the storage door 9 and is fixedly connected to a hand-adjustable turntable 13. The handles 10 provide a gripping area for the operator, facilitating the opening and closing of the storage door 9. The first rotating shaft 12 transmits the rotational power of the hand-adjustable turntable 13. The hand-adjustable turntable 13 allows the operator to apply force, driving the first rotating shaft 12 to rotate.

[0021] Please see Figure 3 Furthermore, the first rotating shaft 12 is fixedly mounted on a rod inside the compartment door 9, with a driving gear 14 fixedly installed. The outer ring of the driving gear 14 has a rectangular array of meshing driven gears 15. Each driven gear 15 has a second rotating shaft 16 fixedly connected to its center via bearings and rotatably connected to the inner wall of the compartment door 9. The driving gear 14 transmits power from the first rotating shaft 12 to the driven gears 15. The driven gears 15 receive power from the driving gear 14 and change the direction of transmission. The second rotating shaft 16 provides rotational support for the driven gears 15, ensuring stable transmission.

[0022] Please see Figure 3Preferably, each driven gear 15 has a micro gear 17 meshing with it on the side away from the driving gear 14. Each micro gear 17 has a fixed bolt 18 fixedly connected to its center via a bearing and rotatably connected to the inner wall of the compartment door 9. One end of each bolt 18 penetrates the compartment door 9 and extends outwards, and the bolt 18 is threadedly connected to a threaded groove 3. The micro gear 17 receives power from the driven gear 15 and changes the transmission direction. The bolt 18, through its threaded connection to the threaded groove 3, secures the compartment door 9; rotating it in the reverse direction unlocks the compartment door 9.

[0023] The working principle of the cryogenic trimming machine with positioning function provided by this utility model is as follows: First, the operator holds the handle 10 on one side of the door 9 and, with the cooperation of the first hinge seat 5 and the second hinge seat 8, pulls the telescopic frame 7 to slide along the telescopic plate 6. At the same time, the sliding seats 11 on both sides of the door 9 slide along the positioning slide rod 4 on the machine body 1 until the sliding seats 11 disengage from the positioning slide rod 4. At this time, the door 9 is rotated, and the door 9 will rotate around the second hinge seat 8 as the axis, thereby opening the door 9 and placing the rubber, silicone and other elastomer products to be trimmed into the trimming roller 23 in the freezer compartment 2. Next, rotate and close the door 9, insert the sliding seats 11 into the corresponding positioning slides 4, and make the fastening bolts 18 contact the threaded grooves 3. At this time, rotate the manual adjustment dial 13, which drives the first rotating shaft 12 to rotate. The driving gear 14 fixed on the first rotating shaft 12 meshes with the four driven gears 15 distributed in a rectangular array. The driven gears 15 rotate synchronously through the second rotating shaft 16 fixed in the middle. Then, the driven gears 15 mesh with the micro gear 17 on the side away from the driving gear 14, which drives the fastening bolts 18 in the middle of the micro gears 17 to rotate, so that the end of the fastening bolts 18 that passes through the door 9 is threadedly connected to the threaded grooves 3 on the body box 1, thus fixing the door 9 stably. At this time, the sealing strip 19 on the inner side of the door 9 is tightly fitted with the opening of the freezer compartment 2, ensuring the airtightness of the freezer compartment 2. Then, the electric push rods 25, which are symmetrically fixed on both sides of the machine body 1, are activated. The output end of the electric push rod 25 passes through the machine body 1 and pushes the connecting rod 26 to move. The connecting rod 26 drives the connecting plate 27 at the end to move synchronously. The two limit guide rods 28 that are slidably connected through the connecting plate 27 then drive the arc-shaped clamping slide 30, which is connected together, to approach the trimming roller 23, until the arc-shaped clamping slide 30 and the annular slide rail 24 fixed on the outer wall of the middle part of the trimming roller 23 form a sliding connection. At this time, the buffer spring 29 sleeved on the outside of the limit guide rod 28 is in a slightly compressed state, providing buffering force to avoid hard contact. Next, liquid nitrogen or other refrigerant is introduced into the freezing chamber 2 to perform low-temperature freezing treatment on the products to be trimmed, causing the excess burrs on the surface of the products to become brittle quickly. At the same time, the trimming roller 23 begins to rotate under the drive of the second drive shaft 22. During the rotation of the trimming roller 23, the annular slide rail 24 slides stably along the arc-shaped clamping slide 30. The arc-shaped clamping slide 30 plays a positioning and limiting role for the trimming roller 23, preventing it from shaking. Through the rotation of the trimming roller 23 and the effect of low-temperature embrittlement, the burrs on the products are precisely peeled off. After the trimming is completed, the refrigerant is stopped, the hand-adjusting turntable 13 is rotated in the opposite direction to disengage the fastening bolt 18 from the threaded groove 3, and the handle 10 is grasped again to open the chamber door 9 and remove the trimmed products.

[0024] The electric actuators, bolts, and other metal structures involved in this utility model must all be made of high-quality rust-proof materials or treated with mature waterproofing technology. This is to effectively prevent device malfunctions caused by rust or water ingress in the structural components. Since the aforementioned rust-proof materials and waterproofing technologies are all within the scope of existing technology, they will not be described in detail in this utility model.

[0025] The motor involved in the embodiments, its matching control system, electromagnetic switch and pipeline circuit can also be provided by the manufacturer. Apart from that, the power supply module, circuit and electronic components and control module involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated. The content protected by this utility model does not involve any improvement to the internal structure and method.

[0026] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A cryogenic trimming machine with positioning function, comprising a machine body, characterized in that: The interior of the casing houses a freezer compartment that communicates with the outside. Electric push rods are symmetrically fixedly installed on both sides of the casing. The output end of each electric push rod passes through the casing and is fixedly connected to a connecting rod that is slidably embedded in the inner wall of the freezer compartment. A connecting plate is fixedly connected to the end of the connecting rod away from the electric push rod. Two limiting guide rods are symmetrically slidably connected through the connecting plate. An arc-shaped clamping slide is fixedly connected to the ends of the two limiting guide rods away from the connecting plate. A buffer spring is sleeved on the outer side of each limiting guide rod. The two ends of the buffer spring are fixedly connected to the connecting plate and the arc-shaped clamping slide, respectively. A fixed seat is rotatably installed between the inner walls of the two sides of the freezer compartment via bearings. A first drive shaft is fixedly installed on the middle section of the fixed seat. A second drive shaft is rotatably installed on one side of the first drive shaft via bearings. A trimming roller is fixedly installed at the end of the second drive shaft away from the first drive shaft. An annular slide rail that slidably connects to the arc-shaped clamping slide is fixedly installed on the outer wall of the middle part of the trimming roller.

2. The cryogenic trimming machine with positioning function according to claim 1, characterized in that: The body housing has a rectangular array of threaded grooves on one side, which are respectively located at the four corners of the connection between the freezer compartment and the outside. Four positioning slide rods are also symmetrically fixedly connected to one side of the body housing.

3. A cryogenic trimming machine with positioning function according to claim 1, characterized in that: Two first hinge seats are vertically and fixedly connected at intervals on one side of the fuselage box. Each first hinge seat is hinged with a telescopic plate, and a telescopic frame is slidably connected to one side of the telescopic plate.

4. A cryogenic trimming machine with positioning function according to claim 3, characterized in that: Each telescopic frame is hinged with a second hinge seat, and a compartment door is fixedly connected to the same side of the two second hinge seats. Four sliding seats that are slidably connected to the positioning slide rod are symmetrically fixed to both sides of the compartment door. A sealing strip adapted to the freezer compartment is glued to the inside of the compartment door.

5. A cryogenic trimming machine with positioning function according to claim 4, characterized in that: Two handles are symmetrically fixedly connected to one side of the compartment door. A first rotating shaft is also rotatably installed on the inner wall of one side of the compartment door via a bearing. One end of the first rotating shaft passes through the compartment door and is fixedly connected to a manual adjustment dial.

6. A cryogenic trimming machine with positioning function according to claim 5, characterized in that: The first rotating shaft is fixedly mounted on the rod inside the compartment door, and a driving gear is fixedly installed on it. The outer ring of the driving gear is meshed with four driven gears in a rectangular array. The middle of each driven gear is fixedly connected to a second rotating shaft that is rotatably connected to the inner wall of the compartment door through a bearing.

7. A cryogenic trimming machine with positioning function according to claim 6, characterized in that: Each driven gear has a micro gear meshing on the side away from the driving gear. Each micro gear has a fastening bolt fixedly connected to the middle of its part, which is rotatably connected to the inner wall of the compartment door via a bearing. One end of the fastening bolt passes through the compartment door and extends outward. The fastening bolt is threadedly connected to a threaded groove.

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