Efficient cooling device for silicone rubber production based on waste reutilization

Abstract

The invention relates to the technical field of waste production and utilization, and discloses an efficient cooling device for silicone rubber production based on waste reutilization, the efficient cooling device comprises a shell and cooling assemblies arranged on the two sides and the top of the shell, and at least three groups of conveying belts are uniformly arranged in the shell in the vertical direction; a transition mechanism is arranged between the output end of the upper conveying belt and the input end of the lower conveying belt adjacent to the upper conveying belt, the conveying belts and the transition mechanism are arranged in an S shape, the transition mechanism comprises two sets of symmetrically-arranged side plates, and the two ends of each side plate are connected with the upper conveying belt and the lower conveying belt adjacent to the upper conveying belt respectively. And a cambered surface guide cavity through which the silicon rubber sheet can pass is formed between the two groups of side plates through the arranged guide parts. The problem that the head ends of the sheets are prone to being stacked due to the fact that the head ends of the sheets rapidly fall off and suddenly change in direction at a traditional vertical connection angle is solved, the temperatures of all parts of the sheets tend to be consistent, and the quality of products produced by recycling and reusing silicone rubber waste is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of waste production and utilization, and particularly to an efficient cooling device for silicone rubber production based on waste recycling. Background Art

[0002] In the current trend of environmental protection and resource recycling, the recycling of silicone rubber waste has become a key link in the sustainable development of the rubber industry. With the wide application of silicone rubber products, if a large amount of generated waste is not properly treated, it will not only cause waste of resources, but also may have a negative impact on the environment. Currently, when recycling silicone rubber waste for production, after collecting the silicone rubber waste, it is pretreated to remove impurities and separate different types of silicone rubber waste for more accurate subsequent input into the recycling process. The pretreated silicone rubber waste and additives are put into an internal mixer for mixing. After the mixed rubber compound is extruded by an extruder into a sheet, the sheet is guided to the feed inlet of the cooling device by a conveying device and placed on a conveyor belt for transportation. At the same time, the air circulation system is started, and the conveyor belt circulates in a "U" - shaped or "S" - shaped structure, sending the sheet back to the cooling area multiple times to reduce the temperature and fix the shape of the sheet after extrusion of the silicone rubber waste.

[0003] An existing cooling device for facilitating the conveyance of rubber, disclosed in the publication number CN119348014A, includes a bottom plate. On the left and right sides of the bottom plate, an air intake side plate and an air outlet side plate are fixedly installed. Between the air intake side plate and the air outlet side plate, a plurality of conveyor belt devices are evenly arranged in the vertical direction. At the upper ends of the air intake side plate and the air outlet side plate, a first air intake box is fixedly installed together. On the left side of the air intake side plate, a second air intake box is fixedly installed. At the left and right ends of the first air intake box, an air outlet and an air inlet are respectively opened. The air outlet and the air inlet are evenly arranged in the front - rear direction and correspond to each other one by one. In the air outlet and the air inlet, an air intake fan is rotatably installed. The air outlet communicates the first air intake box and the second air intake box. Although the above - mentioned technical solution can make the air flow through the surface of each layer of rubber sheet and has the advantage of improving the cooling effect.

[0004] However, in the prior art, after the silicone rubber waste mixed rubber is extruded into a sheet through an extruder, it is cooled by a cooling device. In order to achieve an efficient cooling layout in a limited space, the upper conveyor belt and the lower conveyor belt inside the cooling device are usually set to a horizontal state, and the intersection angle between the upper conveyor belt and the lower conveyor belt in the horizontal state is generally set vertically. This too steep intersection angle can easily cause the head end of the sheet to lose control during the transfer process. When the sheet is transferred from the upper conveyor belt to the lower conveyor belt, the head end of the sheet will fall quickly under the action of gravity due to the lack of effective transition guidance, and it is difficult to synchronize with the speed of the lower conveyor belt. When the sheet changes direction during the transfer process, the head end of the sheet is stacked. The heat of the stacked sheets is difficult to dissipate into the surrounding environment, resulting in temperature differences between different parts of the sheet and uneven cooling, which leads to inconsistent subsequent sheet vulcanization degrees, making it difficult for the silicone rubber waste to fully exert its potential performance. Summary of the invention

[0005] The purpose of the present invention is to provide a high-efficiency cooling device for silicone rubber production based on waste recycling, so as to solve the problem that when the existing silicone rubber waste production process is cooled by a cooling device as mentioned in the above background technology, the intersection angle between the conveyor belts is too steep, resulting in the problem that the head end of the sheet is easily stacked when the sheet is transferred.

[0006] The present invention provides a high-efficiency cooling device for silicone rubber production based on waste recycling, which adopts the following technical solution: A high-efficiency cooling device for silicone rubber production based on waste recycling, comprising a shell and cooling components arranged on both sides and the top of the shell, wherein at least three groups of conveyor belts are evenly arranged in the shell along the up-down direction, a transition mechanism is arranged between the output end of the upper conveyor belt and the input end of the lower conveyor belt adjacent thereto, and an "S"-shaped layout is formed between the conveyor belt and the transition mechanism, and the transition mechanism comprises two groups of symmetrically arranged side plates, the two ends of the side plates are respectively connected to the upper conveyor belt and the lower conveyor belt adjacent thereto, and a guide portion is arranged between the two groups of side plates to form an arc-surface guide cavity for silicone rubber sheets to pass through; A smoothing mechanism is provided between the two groups of side plates, and the smoothing mechanism includes a roller and a guide roller fixed outside the roller. A support shaft is fixed axially at the center of the roller, and connecting rods are rotatably connected at both ends of the support shaft, and a connecting rod is slidably connected outside the connecting rod. Connecting seats are symmetrically fixed on the two groups of side plates, and the other end of the connecting rod is rotatably arranged on the connecting seat through a rotating shaft. When the sheet is transferred from the output end of the upper conveyor belt, it changes direction along the shape of the arc guide cavity and transitions to the input end of the lower conveyor belt. At this time, the guide roller is located at the center of the input end of the lower conveyor belt, contacts the head end of the sheet and guides it to be laid flat.

[0007] Further, a sliding groove is formed in the connecting rod. A first spring is fixed in the sliding groove, and the other end of the first spring is fixed with a sliding rod. The sliding rod slides in the sliding groove and is fixed to the connecting rod. An extension mechanism is provided on the connecting seat. The extension mechanism includes an adjustment shaft rotatably provided on the connecting seat, winding wheels symmetrically fixed on the adjustment shaft, and a pulling rope wound around the winding wheels. One end of the pulling rope is fixed to the winding wheel, and the other end is connected to the sliding rod. Connecting wheels are fixed to both ends of the rotating shaft. Guide grooves are formed in the connecting wheels, and guide rods are slidably connected in the guide grooves. Plug rods are fixed on the guide rods, and insertion slots for inserting the plug rods are formed in the winding wheels. A sleeve block is sleeved outside the plug rod in a limited manner, and the sleeve block is fixed to the connecting seat.

[0008] Further, the guiding portion includes a plurality of upper rollers and a plurality of lower rollers rotatably connected between two side plates. The plurality of upper rollers are evenly distributed at a position near the lower edge of the upper half of the inner side of the side plates, and the plurality of lower rollers are evenly distributed at a position near the outer edge of the lower half of the inner side of the side plates.

[0009] Further, an arc-shaped baffle is fixed between the outer edges of the two side plates, and a circular groove for the lower rollers to rotate is formed in the arc-shaped baffle.

[0010] Further, a guide plate is fixed on one side of the arc-shaped baffle close to the guiding roller, and the guide plate is designed as a curved surface.

[0011] Further, a reset mechanism is provided at one end of the adjustment shaft. The reset mechanism includes a fixed seat fixed on the connecting seat, a receiving cavity formed in the fixed seat, an air inlet passage, and an air outlet passage. The air inlet passage and the air outlet passage communicate with the receiving cavity, and the air inlet passage is externally connected to an air pump through a hose. One end of the adjustment shaft is rotatably provided in the receiving cavity and is fixed with a blade.

[0012] Further, a second spring is provided outside the plug rod, and both ends of the second spring are respectively fixed to the plug rod and the sleeve block.

[0013] Further, a plurality of anti-slip protrusions are evenly fixed on the surface of the guiding roller along the circumferential direction.

[0014] Further, both ends of the side plates are respectively fixed to the side walls of the output end of the upper conveyor belt and the side walls of the input end of the adjacent lower conveyor belt through connectors and bolts.

[0015] Further, the conveyor belt is controlled to rotate by a motor. A control unit is provided on the housing, and the cooling assembly and the motor are electrically connected to the control unit.

[0016] Advantages of the present invention: By setting up a transition mechanism and a smoothing mechanism, when the sheet derived from the silicone rubber waste mixed rubber material is transferred from the upper conveyor belt to the lower conveyor belt, the head end of the sheet first enters the arc guide cavity, and gradually adjusts its direction with the help of the arc trend, thereby avoiding the rapid falling and sudden change of direction of the head end of the sheet at the traditional vertical intersection angle, which causes the problem of stacking at the head end of the sheet. When the guide roller contacts the head end of the sheet, the uneven state of the head end of the sheet can be smoothed, thereby further preventing the occurrence of partial stacking of the head end of the sheet. The smoothed sheet can be cooled more evenly on the conveyor belt below, effectively avoiding the problem of uneven cooling caused by stacking, and making the temperature of various parts of the sheet tend to be consistent, which is helpful to improve the quality of products produced by recycling and reusing silicone rubber waste, thereby improving the recycling rate of silicone rubber waste and reducing production costs.

[0017] By setting up a stretching mechanism, when the leading end of the sheet contacts the guide roller, the thickness of the sheet is used to generate an upward force on the guide roller, causing the guide roller to flip and rotate, and at the same time controlling the guide roller to stretch and move in the conveying direction of the conveyor belt, applying a pulling force to the leading end of the sheet, and stretching the wrinkles or stacked parts at the leading end of the sheet, thereby avoiding the occurrence of stacking, further improving the flatness of the sheet during the transfer process, and at the same time reducing dependence on manual intervention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of a side structural cross-section of the housing of the present invention; Figure 3 It is a three-dimensional structural schematic diagram of the conveyor belt, transition mechanism and smoothing mechanism of the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the transition mechanism and the smoothing mechanism of the present invention; Figure 5 It is a schematic diagram of the side view structure section of the side plate, the guide portion and the arc-shaped baffle of the present invention; Figure 6 It is a three-dimensional structural schematic diagram of the smoothing mechanism, the stretching mechanism and the resetting mechanism of the present invention; Figure 7 It is a schematic diagram of the three-dimensional structure of the roller, guide roller, support shaft, connecting rod, connecting rod, connecting seat, rotating shaft and stretching mechanism of the present invention; Figure 8 It is an exploded schematic diagram of the three-dimensional structure of the winding wheel, the connecting wheel, the inserting rod and the sleeve block of the present invention; Figure 9 It is a schematic diagram of the three-dimensional structure of the connecting seat, rotating shaft, adjusting shaft, winding wheel, connecting wheel, guide groove, inserting rod and sleeve block of the present invention; Figure 10Schematic three-dimensional structure diagram of the connecting seat, adjusting shaft and reset mechanism of the present invention.

[0019] In the figure: 1. Housing; 2. Cooling assembly; 3. Conveyor belt; 4. Motor; 5. Transition mechanism; 51. Side plate; 511. Connecting piece; 512. Bolt; 52. Guide part; 521. Upper roller; 522. Lower roller; 53. Arc-shaped baffle; 531. Guide plate; 6. Smoothing mechanism; 61. Roller; 62. Guide roller; 621. Anti-slip protrusion; 63. Support shaft; 64. Link; 65. Connecting rod; 651. Chute; 652. First spring; 653. Sliding rod; 66. Connecting seat; 67. Rotating shaft; 7. Extension mechanism; 71. Adjusting shaft; 72. Winding wheel; 73. Pulling rope; 74. Connecting wheel; 75. Guide groove; 76. Guide rod; 77. Plug rod; 771. Second spring; 78. Slot; 79. Sleeve block; 8. Reset mechanism; 81. Fixed seat; 82. Accommodating cavity; 83. Air inlet channel; 84. Air outlet channel; 85. Blade; 9. Control unit. Detailed implementation manners

[0020] To make the above objects, features and advantages of the present invention more obvious and understandable, the following will give a detailed description of the specific implementation manners of the present invention with reference to the accompanying drawings of the specification.

[0021] Referring to Figures 1 - 2 , the present invention provides an efficient cooling device for silicone rubber production based on waste recycling, including a housing 1 and cooling assemblies 2 arranged on both sides and the top of the housing 1. At least three groups of conveyor belts 3 are evenly arranged in the housing 1 in the up and down direction. The conveyor belts 3 are controlled to rotate by a motor 4 to convey the sheet material after the extrusion of silicone rubber waste. The motor 4 is installed on the housing 1, and a control unit 9 is arranged on the housing 1. The cooling assemblies 2 and the motor 4 are both electrically connected to the control unit 9.

[0022] Referring to Figures 3 - 5A transition mechanism 5 is provided between the output end of the upper conveyor belt 3 and the input end of the lower conveyor belt 3 adjacent thereto. The conveyor belt 3 and the transition mechanism 5 are arranged in an "S" shape. The transition mechanism 5 includes two groups of symmetrically arranged side plates 51. The two ends of the side plates 51 are respectively connected to the output end of the upper conveyor belt 3 and the input end of the lower conveyor belt 3. Specifically, the two ends of the side plates 51 are respectively fixed to the side wall of the output end of the upper conveyor belt 3 and the side wall of the input end of the lower conveyor belt 3 adjacent thereto by connecting members 511 and bolts 512. A guide portion 52 is provided between the two groups of side plates 51 to form a guide for the silicone rubber sheet to pass through. When the sheet is transferred from the output end of the upper conveyor belt 3 to the input end of the lower conveyor belt 3, the head end of the sheet enters the arc guide cavity first, and the sheet will gradually change its direction along the arc surface during the passage, thereby avoiding the rapid drop and sudden change of direction caused by the traditional vertical intersection angle, which causes the problem of stacking at the head end of the sheet. The guidance of the arc guide cavity keeps the sheet stable during the transfer process, greatly reducing the partial stacking of the head end of the sheet caused by uncontrolled transfer, so that the sheet can be orderly transferred to the input end of the lower conveyor belt 3 for transportation and cooling.

[0023] Specifically, the guide portion 52 includes multiple groups of upper rollers 521 and multiple groups of lower rollers 522 rotatably connected between the two groups of side plates 51. The multiple groups of upper rollers 521 are evenly distributed on the inner upper half of the side plate 51 near the lower edge, and the multiple groups of lower rollers 522 are evenly distributed on the inner lower half of the side plate 51 near the outer edge. The upper rollers 521 and the lower rollers 522 are both rotatably connected to the side plate 51 through a rotating shaft. When the sheet is transferred from the upper conveyor belt 3 to the lower conveyor belt 3, the sheet first contacts with the upper rollers 521 for guidance. Then, when the sheet changes direction, it contacts with the lower rollers 522 due to its own gravity. Since the upper rollers 521 and the lower rollers 522 can rotate freely, when the sheet changes direction, the rolling of the upper rollers 521 and the lower rollers 522 effectively reduces the friction between the sheet and the guide portion 52, thereby helping the sheet to change direction more smoothly along the curved guide cavity and smoothly transition to the lower conveyor belt 3.

[0024] It should be noted that an arc-shaped baffle 53 is fixed between the outer edges of the two groups of side plates 51. A circular groove for the rotation of the lower roller 522 is provided in the arc-shaped baffle 53. The arc-shaped baffle 53 prevents the sheet material from falling into the gap between two adjacent lower rollers 522 during the process of changing direction. At the same time, the arc design of the arc-shaped baffle 53 is adapted to the shape of the arc-shaped guiding cavity, further guiding the sheet material to move along the path of the arc-shaped guiding cavity. Moreover, a guiding plate 531 is fixed on the side of the arc-shaped baffle 53 close to the guiding roller 62. The guiding plate 531 is designed with a curved surface, and the bottom of the guiding plate 531 is located above the conveying plane of the conveyor belt 3 and has a gap therewith. When the sheet material approaches the guiding roller 62 after passing through the arc-shaped guiding cavity, the guiding plate 531 can guide the sheet material. At the same time, the curved surface design of the guiding plate 531 can also play a certain buffering role for the sheet material, avoiding the hard collision between the sheet material and the guiding roller 62 due to excessive impact force during the rapid transfer process, and reducing the risk of damage to the sheet material.

[0025] Refer to Figure 4 、 Figures 6 - 7 As shown in

[0026] Among them, refer to Figure 7, a plurality of anti-slip protrusions 621 are fixedly arranged at equal intervals along the circumferential direction on the surface of the guiding roller 62. The anti-slip protrusions 621 increase the friction force between the guiding roller 62 and the sheet to a certain extent. When the sheet moves, the anti-slip protrusions 621 and the surface of the sheet form an interlocking state, so that the sheet can maintain relatively stable contact with the guiding roller 62, smoothly change the direction following the rotation of the guiding roller 62, and be laid flat on the corresponding conveyor belt 3.

[0027] It should be noted that, referring to Figures 7 - 9 , a chute 651 is formed on the connecting rod 65. A first spring 652 is fixed in the chute 651. The other end of the first spring 652 is fixed with a sliding rod 653. The sliding rod 653 slides in the chute 651 and is fixed to the connecting rod 64. An extension mechanism 7 is arranged on the connecting seat 66. Specifically, the extension mechanism 7 includes an adjusting shaft 71 rotatably arranged on the connecting seat 66, winding wheels 72 symmetrically fixed on the adjusting shaft 71, and a pulling rope 73 wound around the winding wheels 72. One end of the pulling rope 73 is fixed to the winding wheel 72, and the other end is connected to the sliding rod 653. Connecting wheels 74 are fixed at both ends of the rotating shaft 67. Guide grooves 75 are formed on the connecting wheels 74. Guide rods 76 are slidably connected in the guide grooves 75. Plug rods 77 are fixed on the guide rods 76. Insertion slots 78 for the plug rods 77 to be inserted are formed on the winding wheels 72. The end of the plug rod 77 close to the winding wheel 72 is arranged in an arc shape. A sleeve block 79 is sleeved outside the plug rod 77 in a limited manner. The sleeve block 79 is fixed on the connecting seat 66. When the leading end of the sheet contacts the guiding roller 62 through the arc-shaped guiding cavity, due to the certain thickness of the sheet, an upward acting force will be generated on the guiding roller 62, causing the guiding roller 62 to flip with the rotating shaft 67 as the center. At the same time, the guiding roller 62 rotates around the support shaft 63 by itself with the help of the friction force between itself and the sheet, so as to assist the sheet in being transported on the conveyor belt 3. During the process of the guiding roller 62 flipping with the rotating shaft 67 as the center, the connecting wheel 74 will rotate synchronously with the rotating shaft 67. The rotation of the connecting wheel 74 will cause the guide rod 76 to move upward along the guiding track of the guide groove 75, thereby driving the plug rod 77 to move upward and making the plug rod 77 disengage from the insertion slot 78 on the winding wheel 72. At this time, the winding wheel 72 is released from the restriction and is in a free state. Since the first spring 652 was in a stretched state before, at the moment when the plug rod 77 disengages from the insertion slot 78, the first spring 652 quickly contracts to pull the sliding rod 653. The sliding rod 653 drives the connecting rod 64 to move, thereby controlling the guiding roller 62 to move in the conveying direction of the conveyor belt 3. Because the leading end of the sheet is between the guiding roller 62 and the conveyor belt 3, when the guiding roller 62 extends and moves relative to the connecting rod 65, the contact part between the guiding roller 62 and the leading end of the sheet will apply a pulling force to the sheet. The pulling force can stretch open the wrinkles or stacked parts that appear at the leading end of the sheet, effectively avoiding the stacking phenomenon at the leading end of the sheet, so that the sheet can be fully exposed to the cooling environment and uniformly contact with the cooling air.

[0028] Among them, referring to Figures 8 - 9 , a second spring 771 is provided outside the insertion rod 77. The two ends of the second spring 771 are respectively fixed on the insertion rod 77 and the sleeve block 79. When the guide roller 62 returns to the initial position, under the action of the second spring 771, the insertion rod 77 will also quickly reset and re-insert into the slot 78 of the winding wheel 72 to fix the winding wheel 72 again, so that the stretching mechanism 7 returns to the initial stable state, preparing for the adjustment during the next sheet transfer process.

[0029] Furthermore, referring to Figure 10 , a reset mechanism 8 is provided at one end of the adjustment shaft 71. The reset mechanism 8 includes a fixed seat 81 fixed on the connecting seat 66, a receiving cavity 82 opened in the fixed seat 81, an air inlet passage 83 and an air outlet passage 84. The air inlet passage 83 and the air outlet passage 84 communicate with the receiving cavity 82, and the air inlet passage 83 is externally connected to an air pump through a hose. The air pump is electrically connected to the control unit 9. One end of the adjustment shaft 71 is rotatably arranged in the receiving cavity 82 and is fixed with a blade 85. One end of the adjustment shaft 71 is rotatably connected in the receiving cavity 82 through a bearing. After a whole sheet is completely cooled, in order to facilitate the reset of the guide roller 62 to the initial position to meet the adjustment requirements during the next sheet transfer, the externally connected air pump is controlled to start, and high-pressure gas is conveyed into the receiving cavity 82 through the air inlet passage 83. After the high-pressure gas enters the receiving cavity 82, it impacts the blade 85 fixed at one end of the adjustment shaft 71, thereby driving the adjustment shaft 71 to rotate in the reverse direction. During the reverse rotation of the adjustment shaft 71, the winding wheel 72 also rotates in the reverse direction, so that the pulling rope 73 winds around the winding wheel 72 again, making the first spring 652 stretched again, and then driving the guide roller 62 back to the initial position. At the same time, when the winding wheel 72 rotates in the reverse direction, under the control of the second spring 771, the insertion rod 77 can re-insert into the slot 78 of the winding wheel 72 to fix the winding wheel 72 again, completing the reset operation of the entire stretching mechanism 7. The gas in the receiving cavity 82 is discharged through the air outlet passage 84 after pushing the blade 85, ensuring that the air pressure in the receiving cavity 82 returns to normal and preparing for the next reset operation.

[0030] The working principle of an efficient cooling device for silicone rubber production based on waste reuse provided by the present invention is as follows: The control unit 9 controls the start of the motor 4 and the cooling component 2. The motor 4 drives the conveyor belt 3 to operate, and the cooling component 2 starts to cool the sheet. The cooling air circulates in the housing 1 to take away the heat of the sheet. When the sheet transfers from the output end of the upper conveyor belt 3 to the input end of the lower conveyor belt 3, the leading end of the sheet first enters the arc-shaped guiding cavity composed of two groups of side plates 51 and the guiding part 52. When the sheet transfers, it first contacts the upper roller 521. As the direction of the sheet changes, due to its own gravity, it contacts the lower roller 522. The rolling of the upper roller 521 and the lower roller 522 reduces the friction between the sheet and the guiding part 52, helping the sheet to smoothly change its direction along the arc-shaped guiding cavity; When the leading end of the sheet passes through the arc-shaped guiding cavity and transitions to the input end of the lower conveyor belt 3, the leading end of the sheet contacts the guiding roller 62. Due to the thickness of the sheet, an upward acting force is generated on the guiding roller 62. The guiding roller 62 rotates around the rotating shaft 67, and at the same time, it rotates around the support shaft 63 to assist in transporting the sheet. The rotation of the guiding roller 62 drives the rotation of the rotating shaft 67. The rotation of the rotating shaft 67 controls the synchronous rotation of the connecting wheel 74. The rotation of the connecting wheel 74 causes the guide rod 76 to move upward along the guide groove 75, driving the insertion rod 77 to disengage from the slot 78 of the winding wheel 72. At this time, the first spring 652 in the stretched state quickly contracts, pulling the sliding rod 653. The sliding rod 653 drives the connecting rod 64 to control the guiding roller 62 to move in the conveying direction of the conveyor belt 3. The contact part between the guiding roller 62 and the leading end of the sheet applies a pulling force to the sheet, stretching the wrinkled or stacked part at the leading end of the sheet, avoiding the stacking of the leading end of the sheet, and enabling the sheet to be fully exposed to the cooling environment and uniformly contact the cooling air.

[0031] When a whole sheet is completely cooled, in order to reset the adjusting shaft 71 for the next sheet transfer adjustment, the control unit 9 controls the start of the external air pump. The air pump transports high-pressure gas into the accommodation cavity 82 through the air inlet channel 83, impacting the blade 85 fixed to one end of the adjusting shaft 71, driving the adjusting shaft 71 to rotate in the reverse direction. The reverse rotation of the adjusting shaft 71 causes the winding wheel 72 to rotate in the reverse direction accordingly. The pull rope 73 is re-wound around the winding wheel 72, and the first spring 652 is again in the stretched state, driving the guiding roller 62 back to the initial position. When the guiding roller 62 resets, it controls the reverse rotation of the rotating shaft 67, thereby causing the guide rod 76 to move downward along the guide groove 75. Since one end of the insertion rod 77 close to the winding wheel 72 is arc-shaped, the insertion rod 77 can slide into contact with the surface of the winding wheel 72 after moving downward. When the slot 78 and the insertion rod 77 are in the same position during the rotation of the winding wheel 72, at this time, under the control of the second spring 771, the insertion rod 77 re-inserts into the slot 78 to fix the winding wheel 72, completing the reset operation of the extension mechanism 7. The gas in the accommodation cavity 82 is discharged through the air outlet channel 84 to restore the air pressure, preparing for the next reset operation.

[0032] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A high-efficiency cooling device for silicone rubber production based on waste recycling, comprising a shell and cooling components arranged on both sides and the top of the shell, characterized in that: At least three groups of conveyor belts are evenly arranged in the shell along the up-down direction, a transition mechanism is arranged between the output end of the upper conveyor belt and the input end of the lower conveyor belt adjacent thereto, and an "S"-shaped layout is formed between the conveyor belt and the transition mechanism. The transition mechanism includes two groups of symmetrically arranged side plates, and the two ends of the side plates are respectively connected to the upper conveyor belt and the lower conveyor belt adjacent thereto, and a guide portion is arranged between the two groups of side plates to form an arc-surface guide cavity for the silicone rubber sheet to pass through; A smoothing mechanism is provided between the two groups of side plates, and the smoothing mechanism includes a roller and a guide roller fixed outside the roller. A support shaft is fixed axially at the center of the roller, and connecting rods are rotatably connected at both ends of the support shaft, and a connecting rod is slidably connected outside the connecting rod. Connecting seats are symmetrically fixed on the two groups of side plates, and the other end of the connecting rod is rotatably arranged on the connecting seat through a rotating shaft. When the sheet is transferred from the output end of the upper conveyor belt, it changes direction along the shape of the arc guide cavity and transitions to the input end of the lower conveyor belt. At this time, the guide roller is located at the center of the input end of the lower conveyor belt, contacts the head end of the sheet and guides it to be laid flat.

2. The high-efficiency cooling device for silicone rubber production based on waste recycling according to claim 1 is characterized in that: The connecting rod is provided with a sliding groove, in which a first spring is fixed, and a sliding rod is fixed on the other end of the first spring. The sliding rod slides in the sliding groove and is fixed to the connecting rod. The connecting seat is provided with an extending mechanism, which includes an adjusting shaft rotatably arranged on the connecting seat, a winding wheel symmetrically fixed on the adjusting shaft, and a pull rope wound around the winding wheel, one end of the pull rope is fixed to the winding wheel, and the other end is connected to the sliding rod. Connecting wheels are fixed at both ends of the rotating shaft, and a guide groove is provided on the connecting wheel, and a guide rod is slidably connected in the guide groove, an insertion rod is fixed on the guide rod, and a slot for the insertion rod is provided on the winding wheel, and a sleeve block is provided on the outer limit sleeve of the insertion rod, and the sleeve block is fixed on the connecting seat.

3. The high-efficiency cooling device for silicone rubber production based on waste recycling according to claim 1 is characterized in that: The guide part includes multiple groups of upper rollers and multiple groups of lower rollers rotatably connected between the two groups of side panels, the multiple groups of upper rollers are evenly distributed on the inner upper half of the side panels near the lower edge, and the multiple groups of lower rollers are evenly distributed on the inner lower half of the side panels near the outer edge.

4. The high-efficiency cooling device for silicone rubber production based on waste recycling according to claim 3 is characterized in that: An arc-shaped baffle is fixed between the outer edges of the two groups of side plates, and a circular groove for the lower roller to rotate is provided in the arc-shaped baffle.

5. The high-efficiency cooling device for silicone rubber production based on waste recycling according to claim 4 is characterized in that: A guide plate is fixed on one side of the arc-shaped baffle plate close to the guide roller, and the guide plate is designed as a curved surface.

6. The high-efficiency cooling device for silicone rubber production based on waste recycling according to claim 2 is characterized in that: A reset mechanism is provided at one end of the adjusting shaft, and the reset mechanism includes a fixing seat fixed on the connecting seat, a accommodating chamber opened in the fixing seat, an air inlet channel and an air outlet channel. The air inlet channel and the air outlet channel are connected to the accommodating chamber, and the air inlet channel is connected to an air pump through a hose. One end of the adjusting shaft is rotatably arranged in the accommodating chamber and is fixed with a blade.

7. The high-efficiency cooling device for silicone rubber production based on waste recycling according to claim 2 is characterized in that: A second spring is arranged outside the inserting rod, and two ends of the second spring are respectively fixed on the inserting rod and the sleeve block.

8. The high-efficiency cooling device for silicone rubber production based on waste recycling according to claim 1 is characterized in that: The surface of the guide roller is fixed with a plurality of groups of anti-slip protrusions at equal intervals along the circumferential direction.

9. The high-efficiency cooling device for silicone rubber production based on waste recycling according to claim 1 is characterized in that: The two ends of the side plate are respectively fixed to the side wall of the upper conveyor belt output end and the side wall of the lower conveyor belt input end adjacent thereto through connecting pieces and bolts.

10. The high-efficiency cooling device for silicone rubber production based on waste recycling according to claim 1, characterized in that: The conveyor belt is rotated by a motor, a control unit is arranged on the shell, and the cooling assembly and the motor are electrically connected to the control unit.

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