A continuous calender molding production device for rubber plate based on steam heating

Abstract

The application discloses a kind of based on steam heating's rubber plate continuous calendering forming production device, it is related to rubber calendering technical field.The present application includes device main body, the inside of device main body is sequentially provided with calendering roller one, calendering roller two, calendering roller three and calendering roller four from top to bottom, the top of device main body is provided with baffle device, the baffle device includes two-way screw one rotationally installed in the inner wall of device main body, slide rod one is fixed in the inside of device main body, the two-way screw one is driven by motor, the circumferential surface of the two-way screw one is oppositely threaded, and two push plates are respectively threadedly connected on the circumferential surface.The baffle device is arranged to drive the push plate by the two-way screw one, and the close plate one and the close plate two are moved close to each other or away from each other, so as to adjust the rubber calendering width.

Description

Technical Field

[0001] This invention relates to the field of rubber calendering technology, specifically to a continuous calendering and forming production device for rubber sheets based on steam heating. Background Technology

[0002] A rubber calender is a mechanical device used to produce rubber films or sheets, widely used in tires, rubber shoes, industrial products, and other fields. It repeatedly rolls and stretches rubber raw materials through the compression action of multiple rollers to achieve the desired thickness and uniformity. The equipment is usually equipped with a heating system to enhance the flowability and processing properties of the rubber. Rubber calenders play a vital role in improving production efficiency and product quality.

[0003] Chinese patent CN224130291U discloses a rubber calendering device, including a support bracket. Support legs are fixedly installed at all four ends of the bottom of the support bracket, and a calendering device body is fixedly installed at one end of the top of the support bracket. First calendering rollers and second calendering rollers are rotatably installed at the upper and lower ends of the inner wall of the calendering device body, respectively. One end of each of the first and second calendering rollers is rotatably installed on one side of the inner wall of the calendering device body. The rubber raw material is calendered using the multiple first and second calendering rollers. After calendering, a second drive motor drives a collecting roller to collect the calendered rubber pads. Excess material is then cut off by a cutting blade. Collecting the calendered rubber pads prevents them from accumulating inside the storage box, improving material retrieval and production efficiency in subsequent operations.

[0004] However, the current calendering production equipment has the following problems: during the feeding process of rubber raw materials, it is not convenient to adjust the calendering width of the rubber raw materials according to the processing requirements, which leads to the generation of excess scraps in the processing of rubber raw materials, increases the waste of raw materials, and is not conducive to the effective utilization of resources. Therefore, we propose a continuous calendering production equipment for rubber sheets based on steam heating. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a continuous calendering and molding production device for rubber sheets based on steam heating, which solves the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a continuous calendering and molding production device for rubber sheets based on steam heating, comprising a main body of the device. From top to bottom, calendering rollers one, two, three, and four are sequentially arranged inside the main body. A side-blocking device is provided above the main body. The side-blocking device includes a bidirectional screw 1 rotatably mounted on the inner wall of the main body and a slide rod 1 fixed inside the main body. The bidirectional screw 1 is driven by a motor. Two push plates are threaded onto the circumferential surfaces of the bidirectional screw 1 with opposite thread directions, and the push plates are slidably mounted outside the slide rod 1. An elastic telescopic rod 1 is fixed to the side of the two push plates that are close to each other. A bonding plate 1 is fixed to the bottom of the fixed end of the elastic telescopic rod 1, and a bonding plate 2 is fixed to the telescopic end of the elastic telescopic rod 1. The bonding plate 2 transversely penetrates the outer wall of the bonding plate 1. An elastic telescopic rod 2 is fixed to the side of the two push plates that are far apart from each other, and a scraping box is fixed to the bottom of the telescopic end of the elastic telescopic rod 2.

[0007] According to the above technical solution, the first calendering roll, the third calendering roll, and the fourth calendering roll are adjustable rolls, while the second calendering roll is a fixed roll.

[0008] According to the above technical solution, the first bonding plate and the second bonding plate are in contact with the outer walls of the second calendering roll and the first calendering roll, respectively, and the scraping box is in contact with the outer wall of the third calendering roll.

[0009] According to the above technical solution, a material return device is provided on one side of the main body of the device. The material return device includes a U-shaped box fixed to the outer wall of the main body of the device, a synchronous belt roller 1 rotatably installed inside the U-shaped box, and a synchronous belt roller 2 rotatably installed on the upper outer wall of the main body of the device via a bracket. The synchronous belt roller 1 is driven by a motor. A synchronous belt is connected between the outside of the synchronous belt roller 1 and the synchronous belt roller 2. Several actuating plates are evenly and equidistantly fixed on the outside of the synchronous belt. An L-shaped triangular guide plate is fixed on the top of the U-shaped box, and an arc-shaped guide plate is fixed on the top of the L-shaped triangular guide plate.

[0010] According to the above technical solution, the vertical support plate of the L-shaped triangular guide plate is arranged in a triangular shape.

[0011] According to the above technical solution, guide rollers are rotatably installed on the inner walls of both scraping boxes. The guide rollers are used to guide the scraped material from the scraping box into the space between the synchronous belt and the L-shaped triangular guide plate.

[0012] According to the above technical solution, L-shaped columns are fixed on both sides of the second synchronous belt roller, and a U-shaped slide rod is slidably installed on the top of the main body of the device. L-shaped connecting rods are fixed on both sides of the U-shaped slide rod. A long groove plate is fixed to the end of the L-shaped connecting rod away from the U-shaped slide rod. The end of the L-shaped column away from the second synchronous belt roller is slidably installed inside the long groove plate. A push plate is hinged to the middle of the U-shaped slide rod through a bracket. A torsion spring is provided between the push plate and the bracket of the U-shaped slide rod.

[0013] According to the above technical solution, a limiting block for restricting the unidirectional swing of the push plate is fixed in the middle of the U-shaped slide bar.

[0014] According to the above technical solution, anti-sticking roller devices are provided at the first and second calendering rollers. The anti-sticking roller device includes a bidirectional screw rod rotatably installed on one side of the inner wall of the device body and a slide rod 2 fixedly installed on one side of the inner wall of the device body. Two sliders are threadedly connected to the circumferential surfaces of the bidirectional screw rod 2 with opposite thread directions. Two other sliders are slidably installed on the outside of the slide rod 2. A U-shaped rod is transversely inserted and slidably installed between the two opposing sliders. A spring is provided between the U-shaped rod and the opposing slider. A scraper box is fixed on the side of the two U-shaped rods that is far away from each other. A gap is left between the two scraper boxes and the first and second calendering rollers.

[0015] According to the above technical solution, an elastic telescopic column is fixed to the outside of the second bonding plate, a Z-shaped rod is fixed to the bottom of the telescopic end of the elastic telescopic column, a limiting plate is fixed to the top of the shovel box, and the outside of the limiting plate abuts against the outer wall of the vertical support of the Z-shaped rod.

[0016] This invention provides a continuous calendering and molding production apparatus for rubber sheets based on steam heating. It has the following beneficial effects: (1) The present invention, through the setting of the edge-blocking device, enables the bidirectional screw to drive the push plate to move the bonding plate one and the bonding plate two closer or further apart, thereby achieving the purpose of adjusting the rubber calendering width; at the same time, under the elastic force of the elastic telescopic rod one, the telescopic end of the elastic telescopic rod one pushes the bonding plate two to be tightly attached to the outer wall of the calendering roller one, and the bonding plate one and the bonding plate two adapt to the distance between the calendering roller two and the calendering roller one, without the need for manual readjustment of the glue-blocking position of the bonding plate one and the bonding plate two, and at the same time, the elastic pressing of the elastic telescopic rod one is not The rigid, fixed clamping mechanism ensures proper fit of the second bonding plate while preventing hard friction and scratches on the first calendering roller caused by slight runout of the second bonding plate's roller surface. Simultaneously, the push plate and the second elastic telescopic rod work together to keep the scraper box aligned with the rubber edge of the current process width, allowing for cutting of the rubber edge material without separate manual blade alignment. The second elastic telescopic rod provides appropriate elasticity, causing the scraper box to slightly press against the surface of the third calendering roller or maintain the optimal cutting clearance. This absorbs radial runout, installation errors, or thermal expansion deformation of the third calendering roller, preventing scratches caused by hard contact.

[0017] (2) By setting up a return device, the present invention enables the guide roller, synchronous belt, L-shaped triangular guide plate, synchronous belt roller 2, synchronous belt roller 1, actuating plate, and arc-shaped guide plate to work together to drive the rubber edge material back to the gap between calendering roller 1 and calendering roller 2 for recalendering. There is no need to stack, crush or manually handle it, and the material loss is greatly reduced. At the same time, the synchronous belt roller 2, L-shaped column, long groove plate, L-shaped connecting rod, and U-shaped slide bar work together to drive the push plate to reciprocate and pull, giving the rubber edge material an additional forward conveying force, ensuring that the rubber edge material can stably enter the gap between calendering roller 1 and calendering roller 2, and preventing the rubber edge material from shrinking or slipping and accumulating in the guide section.

[0018] (3) By setting up the anti-sticking roller device, the rubber raw material adhering to the surfaces of calender roll one and calender roll two will be scraped into the scraper box during the rotation of calender roll one and calender roll two, thereby avoiding the pressing of new rubber sheet into the next round by rubber nodules or scars, reducing quality defects such as bubbles and missing edges. In addition, the spring between the slider and the U-shaped rod continuously provides appropriate clamping force, and the U-shaped rod drives the scraper box to slightly retract or follow, absorbing the small changes caused by the radial runout of calender roll one or calender roll two or thermal expansion, and always maintaining the appropriate fit of the scraper box. Simultaneously, the calender roll 1, calender roll 2, elastic telescopic rod 1, bonding plate 2, calender roll 1, elastic telescopic column, and Z-shaped rod work together to ensure that the scraper box always maintains its original relative relationship with calender roll 1, avoiding collisions or interference between the scraper box and calender roll 1 during the distance adjustment process. This follow-up clearance structure works in conjunction with the spring floating roller structure of the scraper box itself, allowing the scraper box to directly participate in the roller cleaning in the working position and automatically avoid collisions during distance adjustment without the need for manual retraction of the blade. This effectively prevents damage to the surface of calender roll 1 due to misoperation and improves the automation level and operational safety of the calender. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the entire invention. Figure 1 ; Figure 2 This is a schematic diagram of the entire invention. Figure 2 ; Figure 3 This is a schematic diagram of the edge-blocking device of the present invention; Figure 4 This is a partial structural diagram of the edge-blocking device of the present invention. Figure 1 ; Figure 5 This is a partial structural diagram of the edge-blocking device of the present invention. Figure 2 ; Figure 6 This is a schematic diagram of the material return device of the present invention; Figure 7 This is a partial exploded view of the material return device of the present invention; Figure 8This is a partial structural schematic diagram of the material return device of the present invention; Figure 9 This is a schematic diagram of the anti-sticking roller device of the present invention. Figure 1 ; Figure 10 This is a schematic diagram of the anti-sticking roller device of the present invention. Figure 2 .

[0020] In the diagram: 1. Main body of the device; 2. Calendering roll one; 3. Calendering roll two; 4. Calendering roll three; 5. Calendering roll four; 6. Edge guard device; 61. Bidirectional screw one; 62. Slide rod one; 63. Push plate; 64. Laminating plate one; 65. Elastic telescopic rod one; 66. Laminating plate two; 67. Elastic telescopic rod two; 68. Edge scraper box; 7. Return material device; 71. U-shaped box; 72. Synchronous belt roller one; 73. Synchronous belt roller two; 74. 75. Synchronous belt; 76. Actuating plate; 77. L-shaped triangular guide plate; 78. Arc-shaped guide plate; 79. Guide roller; 70. L-shaped column rod; 710. L-shaped connecting rod; 711. Long groove plate; 712. U-shaped slide bar; 713. Push plate; 80. Anti-sticking roller device; 81. Two-way screw rod II; 82. Slide bar II; 83. Slider; 84. U-shaped rod; 85. Material shovel box; 86. Limiting plate; 87. Z-shaped rod; 88. Elastic telescopic column. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0022] Please see Figure 1 - Figure 10One embodiment of the present invention is: a continuous calendering and molding production device for rubber sheets based on steam heating, comprising a device body 1, wherein calendering roller 2, calendering roller 3, calendering roller 4, and calendering roller 5 are arranged sequentially from top to bottom inside the device body 1; a side-blocking device 6 is arranged above the device body 1, the side-blocking device 6 comprising a bidirectional screw 61 rotatably mounted on the inner wall of the device body 1 and a slide rod 62 fixed inside the device body 1; the bidirectional screw 61 is driven by a motor, and two push plates 63 are threadedly connected to the circumferential surfaces of the bidirectional screw 61 with opposite thread directions, and the push plates 63 are slidably mounted on... On the outside of slide bar 62, elastic telescopic rods 65 are fixed to the sides of the two push plates 63 that are close to each other. A bonding plate 64 is fixed to the bottom of the fixed end of elastic telescopic rod 65, and a bonding plate 66 is fixed to the telescopic end of elastic telescopic rod 65. The bonding plate 66 extends laterally through the outer wall of the bonding plate 64. Through the above structure, the bidirectional screw 61 drives the push plate 63 to move the bonding plate 64 and the bonding plate 66 closer to each other or further away from each other, thereby achieving the purpose of adjusting the width of rubber calendering. Furthermore, the bonding plate 64 and the bonding plate 66 can adapt to the distance between the calendering roller 3 and the calendering roller 2.

[0023] Two elastic telescopic rods 67 are fixed to the opposite sides of the two push plates 63. The bottom of the telescopic end of each elastic telescopic rod 67 is fixed with a scraping box 68. Calendering rollers 1, 3, and 4 are adjustable rollers, while calendering roller 2 is a fixed roller. Laminating plate 1 64 and 2 66 are in contact with the outer walls of calendering roller 2 3 and calendering roller 1 2, respectively. The scraping box 68 is in contact with the outer wall of calendering roller 3 4. With the above structure, the scraping box 68 is always aligned with the rubber edge position of the current process width, and the calendered rubber edge material can be cut off without separate manual knife alignment.

[0024] A return material device 7 is provided on one side of the main body 1. The return material device 7 includes a U-shaped box 71 fixed to the outer wall of the main body 1, a first synchronous belt roller 72 rotatably installed inside the U-shaped box 71, and a second synchronous belt roller 73 rotatably installed on the upper outer wall of the main body 1 via a bracket. The first synchronous belt roller 72 is driven by a motor. A synchronous belt 74 is connected between the outside of the first synchronous belt roller 72 and the second synchronous belt roller 73. Several actuating plates 75 are evenly and equidistantly fixed on the outside of the synchronous belt 74. An L-shaped triangular guide plate 76 is fixed on the top of the U-shaped box 71. An arc-shaped guide plate 77 is fixed to the top of the L-shaped triangular guide plate 76. The vertical support plate of the L-shaped triangular guide plate 76 is arranged in a triangle. Guide rollers 78 are rotatably installed on the inner walls of the two scraping boxes 68. The guide rollers 78 are used to guide the scraped edge material cut by the scraping box 68 into the space between the synchronous belt 74 and the L-shaped triangular guide plate 76. Through the above structure, the synchronous belt 74 pulls the rubber edge material through the L-shaped triangular guide plate 76 back to the gap between the calender roll 1 and the calender roll 2 for calendering. There is no need to stack, crush or manually handle it, and the material loss is greatly reduced.

[0025] Both sides of the synchronous belt roller 73 are fixed with L-shaped columns 79. A U-shaped slide rod 712 is laterally slidably installed on the top of the main body 1. Both sides of the U-shaped slide rod 712 are fixed with L-shaped connecting rods 710. A long groove plate 711 is fixed to the end of the L-shaped connecting rod 710 away from the U-shaped slide rod 712. The end of the L-shaped column 79 away from the synchronous belt roller 73 is slidably installed inside the long groove plate 711. A pusher plate 713 is hinged to the middle of the U-shaped slide rod 712 through a bracket. A torsion spring is provided between the plate 713 and the support of the U-shaped slide bar 712. A limiting block is fixed in the middle of the U-shaped slide bar 712 to limit the unidirectional swing of the push plate 713. Through the above structure, the reciprocating pull of the push plate 713 provides additional forward conveying force to the rubber edge material, ensuring that the rubber edge material can stably enter the gap between the calender roll 1 and the calender roll 2, and preventing the rubber edge material from shrinking or slipping and accumulating in the guide section (the section where the calendered rubber is transmitted at other guide rolls).

[0026] In use, when the width of the rubber calender needs to be adjusted, the operator drives the bidirectional screw 61 to rotate via a motor. The bidirectional screw 61 drives the push plate 63 to move closer to or further away from each other along the outside of the slide rod 62. The push plate 63, through the elastic telescopic rod 65, drives the bonding plate 64 and the bonding plate 66 to move accordingly, thereby achieving the purpose of adjusting the width of the rubber calender. At the same time, when the operator adjusts the distance between the calender roller 2 and the calender roller 3 to adjust the thickness of the rubber calender, the elastic telescopic rod 65 expands and contracts elastically. The telescopic end of the first rod 65 pushes the second bonding plate 66 to adhere tightly to the outer wall of the first calender roll 2, and the second bonding plate 66 extends out from the inside of the first bonding plate 64. This allows the first bonding plate 64 and the second bonding plate 66 to adapt to the distance between the second calender roll 3 and the first calender roll 2, eliminating the need for manual readjustment of the glue-blocking positions of the first bonding plate 64 and the second bonding plate 66. At the same time, the elastic pressing of the elastic telescopic rod 65, rather than its rigid pressing, ensures the adhesion of the second bonding plate 66 and avoids hard friction and scratches on the first calender roll 2 caused by the slight jump of the second bonding plate 66 roller surface.

[0027] During the process of the push plate 63 moving closer to or further away from each other along the outside of the slide bar 62 driven by the bidirectional screw 61, the push plate 63 drives the scraper box 68 to move along with it through the elastic telescopic rod 67. The scraper box 68 cuts off the rubber edge material after calendering by the calendering rollers 3 and 4. Here, the scraper box 68 is always aligned with the rubber edge position of the current process width, without the need for separate manual knife alignment. At the same time, the elastic telescopic rod 67 provides appropriate elasticity, so that the scraper box 68 slightly presses the roller surface of the calendering roller 4 or maintains the optimal cutting gap. It can absorb the radial runout, installation error or thermal expansion deformation of the calendering roller 4 and prevent scratches caused by hard contact.

[0028] When the scraper box 68 initially cuts off the rubber edge material, the worker guides the cut rubber edge material to the guide roller 78, and then feeds it between the synchronous belt 74 and the L-shaped triangular guide plate 76. Subsequently, the worker drives the synchronous belt roller 73 to rotate via a motor. Under the synergistic action of the synchronous belt roller 73 and the synchronous belt roller 72, the synchronous belt roller 73 and the synchronous belt roller 72 drive the synchronous belt 74 to rotate. The synchronous belt 74 drives the actuating plate 75 to rotate, and the actuating plate 75 will drive the rubber edge material upward. The rubber edge material is lifted and guided by the triangular inclined surface of the L-shaped triangular guide plate 76. It will converge towards the center of the L-shaped triangular guide plate 76. After the rubber edge material moves to the position of the arc guide plate 77, the arc guide plate 77 will guide the rubber edge material to move towards the horizontal support plate of the L-shaped triangular guide plate 76. The horizontal support plate of the L-shaped triangular guide plate 76 guides the rubber edge material back to the gap between the calender roll 1 and the calender roll 2 for recalendering. There is no need to stack, crush or manually handle it, and the material loss is greatly reduced.

[0029] Simultaneously, during the rotation of the second synchronous belt roller 73, the second synchronous belt roller 73 drives the L-shaped column rod 79 to rotate. The L-shaped column rod 79 slides along the inside of the long groove plate 711, and the L-shaped column rod 79 drives the long groove plate 711 to push the L-shaped connecting rod 710 to drive the U-shaped slide rod 712 to reciprocate along the top of the main body 1 of the device. The U-shaped slide rod 712 drives the push plate 713 to move accordingly. Each time the U-shaped slide rod 712 drives the push plate 713 to approach the arc-shaped guide plate 77, the push plate 713 will move upward under the resistance of the rubber edge material. The U-shaped slide bar 712 moves the push plate 713 away from the arc-shaped guide plate 77. At this time, the limiting block of the U-shaped slide bar 712 restricts the swing of the push plate 713. The U-shaped slide bar 712 will drive the push plate 713 to pull the rubber edge material towards the calender roll 2 and calender roll 3. This makes the reciprocating pulling of the push plate 713 give the rubber edge material an additional forward conveying force, ensuring that the rubber edge material can stably enter the gap between the calender roll 2 and calender roll 3, and preventing the rubber edge material from shrinking or slipping and accumulating in the guide section.

[0030] Please see Figure 1 - Figure 10 Based on the above embodiments, in another embodiment of the present invention, an anti-sticking roller device 8 is provided at calender roll 2 and calender roll 3. The anti-sticking roller device 8 includes a bidirectional screw 81 rotatably installed on one side of the inner wall of the device body 1 and a slide rod 82 fixedly installed on one side of the inner wall of the device body 1. Two sliders 83 are threadedly connected to the circumferential surfaces of the bidirectional screw 81 with opposite thread directions. Two other sliders 83 are slidably installed on the outside of the slide rod 82. A U-shaped rod 84 is transversely inserted and slidably installed between the two opposing sliders 83. A spring is provided between the U-shaped rod 84 and the two sliders 83. A scraper box 85 is fixed on the side of the two U-shaped rods 84 that is far away from each other. A gap is left between the two scraper boxes 85 and calender roll 2 and calender roll 3. Through the above structure, the rubber raw material adhering to the surface of calender roll 2 and calender roll 3 will be scraped into the scraper box 85, thereby avoiding the pressing of new rubber sheets into the next roll by rubber nodules or scars, and reducing quality defects such as bubbles and missing edges.

[0031] An elastic telescopic column 88 is fixed to the outside of the bonding plate 2 66. A Z-shaped rod 87 is fixed to the bottom of the telescopic end of the elastic telescopic column 88. A limit plate 86 is fixed to the top of the shovel box 85. The outside of the limit plate 86 abuts against the outer wall of the vertical support rod of the Z-shaped rod 87. Through the above structure, the shovel box 85 always maintains the original relative relationship with the calender roll 2, avoiding collision or interference between the shovel box 85 and the calender roll 2 during the adjustment process.

[0032] During use, overheating of calender roll 1 (2) and calender roll 2 (3) can cause the rubber material to stick to the rolls. In this situation, the operator rotates the bidirectional screw 2 (81), which causes the corresponding two sliders 83 to shift. Under the combined action of the two sliders 83 corresponding to the bidirectional screw 2 (81) and the two sliders 83 corresponding to the slide bar 2 (82), the opposing sliders 83 push the springs, causing the corresponding U-shaped rods 84 to move towards the center of calender roll 1 (2) and calender roll 2 (3) respectively. The two U-shaped rods 84 respectively drive the corresponding scraper boxes 85 to move closer to the calender roll 1 2 and calender roll 2 3. At this time, during the rotation of calender roll 1 2 and calender roll 2 3, the rubber raw material adhering to the surface of calender roll 1 2 and calender roll 2 3 will be scraped into the scraper box 85, thereby preventing rubber nodules or blemishes from being pressed into the new rubber sheet in the next rotation, reducing quality defects such as bubbles and missing edges. In addition, the spring between the slider 83 and the U-shaped rods 84 continuously provides a moderate clamping force, and the U-shaped rods 84 can drive the scraper box 85 to slightly retract or follow, sucking in... The slight changes caused by radial runout of calender roll 12 or calender roll 23 due to thermal expansion always maintain a suitable fit of the shovel box 85. Each time the worker adjusts the distance between calender roll 12 and calender roll 23 via calender roll 12, the telescopic end of the elastic telescopic rod 165 pushes the bonding plate 266 tightly against the outer wall of calender roll 12. The bonding plate 266, through the elastic telescopic column 88, pushes the Z-shaped rod 87 to move, and the Z-shaped rod 87 pushes the limiting plate 86, thereby moving the shovel box 85 and the corresponding U-shaped rod 84. When displacement occurs, the spring between the U-shaped rod 84 and the slider 83 is compressed, and the scraper box 85 always maintains its original relative relationship with the calender roll 2, avoiding collision or interference between the scraper box 85 and the calender roll 2 during the distance adjustment process. This follow-up clearance structure works in conjunction with the spring floating roller contact structure of the scraper box 85 itself, allowing the scraper box 85 to directly participate in the roller cleaning in the working position and automatically avoid collision during distance adjustment without manual retraction, effectively preventing damage to the roller surface of the calender roll 2 by misoperation, and improving the automation level and operational safety of the calender.

[0033] It should be noted that in the initial stage, the scraper box 85 does not contact the outer wall of calender roll 1 and calender roll 2, avoiding the scraper box 85 being constantly attached to the roll surface of calender roll 1 and calender roll 2. Even with spring floating, there is still a risk of micro-friction, vibration grinding or micro-scratches on the scraper edge, especially during start-up, shutdown and thermal expansion. The initial non-contact can completely avoid the continuous friction between the scraper and calender roll 1 and calender roll 2 when unnecessary, thus extending the roll surface life.

[0034] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A continuous calendering and molding production device for rubber sheets based on steam heating, comprising a main body of the device (1), characterized in that: The main body (1) of the device is provided with calendering roll 1 (2), calendering roll 2 (3), calendering roll 3 (4) and calendering roll 4 (5) arranged from top to bottom inside. A baffle device (6) is provided above the main body (1). The baffle device (6) includes a bidirectional screw 1 (61) rotatably installed on the inner wall of the main body (1) and a slide rod 1 (62) fixed inside the main body (1). The bidirectional screw 1 (61) is driven by a motor. Two push plates (63) are threadedly connected to the circumferential surfaces of the bidirectional screw 1 (61) with opposite thread directions. 3) Sliding installation on the outside of slide rod one (62), elastic telescopic rod one (65) is fixed on the side of the two push plates (63) that are close to each other, adhesive plate one (64) is fixed at the bottom of the fixed end of elastic telescopic rod one (65), adhesive plate two (66) is fixed at the telescopic end of elastic telescopic rod one (65), adhesive plate two (66) is horizontally penetrating the outer wall of adhesive plate one (64), elastic telescopic rod two (67) is fixed on the side of the two push plates (63) that are far from each other, and scraping box (68) is fixed at the bottom of the telescopic end of elastic telescopic rod two (67). A return material device (7) is provided on one side of the main body (1) of the device. The return material device (7) includes a U-shaped box (71) fixed on the outer wall of the main body (1), a synchronous belt roller 1 (72) rotatably installed inside the U-shaped box (71), and a synchronous belt roller 2 (73) rotatably installed on the upper outer wall of the main body (1) via a bracket. The synchronous belt roller 1 (72) is driven by a motor. A synchronous belt (74) is connected between the outside of the synchronous belt roller 1 (72) and the synchronous belt roller 2 (73). Several actuating plates (75) are evenly and equidistantly fixed on the outside of the synchronous belt (74). An L-shaped triangular guide plate (76) is fixed on the top of the U-shaped box (71), and an arc-shaped guide plate (77) is fixed on the top of the L-shaped triangular guide plate (76). The vertical support plate of the L-shaped triangular guide plate (76) is arranged in a triangular shape; Guide rollers (78) are rotatably installed on the inner walls of both scraping boxes (68). The guide rollers (78) are used to guide the scraped material cut by the scraping box (68) into the space between the synchronous belt (74) and the L-shaped triangular guide plate (76). Both sides of the synchronous belt roller 2 (73) are fixed with L-shaped column rods (79). A U-shaped slide rod (712) is horizontally slidably installed on the top of the main body (1) of the device. Both sides of the U-shaped slide rod (712) are fixed with L-shaped connecting rods (710). A long groove plate (711) is fixed to the end of the L-shaped connecting rod (710) away from the U-shaped slide rod (712). The end of the L-shaped column rod (79) away from the synchronous belt roller 2 (73) is slidably installed inside the long groove plate (711). A push plate (713) is hinged to the middle of the U-shaped slide rod (712) through a bracket. A torsion spring is provided between the push plate (713) and the bracket of the U-shaped slide rod (712). The middle part of the U-shaped slide bar (712) is fixed with a limiting block for restricting the unidirectional swing of the push plate (713).

2. The continuous calendering and molding production device for rubber sheets based on steam heating according to claim 1, characterized in that: The first calendering roll (2), the third calendering roll (4) and the fourth calendering roll (5) are adjustable rolls, and the second calendering roll (3) is a fixed roll.

3. The continuous calendering and molding production device for rubber sheets based on steam heating according to claim 1, characterized in that: The first bonding plate (64) and the second bonding plate (66) are in contact with the outer walls of the second calendering roll (3) and the first calendering roll (2), respectively, and the scraping box (68) is in contact with the outer wall of the third calendering roll (4).

4. The continuous calendering and molding production device for rubber sheets based on steam heating according to claim 1, characterized in that: Anti-sticking roller device (8) is provided at the first (2) and the second (3) of the calendering roller. The anti-sticking roller device (8) includes a bidirectional screw (81) rotatably installed on one side of the inner wall of the device body (1) and a slide rod (82) fixedly installed on one side of the inner wall of the device body (1). Two sliders (83) are threadedly connected to the circumferential surfaces of the bidirectional screw (81) with opposite thread directions. Two other sliders (83) are slidably installed on the outside of the slide rod (82). A U-shaped rod (84) is transversely inserted and slidably installed between the two opposing sliders (83). A spring is provided between the U-shaped rod (84) and the two sliders (83). A scraper box (85) is fixed on the side of the two U-shaped rods (84) that are far apart from each other. A gap is left between the two scraper boxes (85) and the first (2) and the second (3) of the calendering roller.

5. The continuous calendering and molding production apparatus for rubber sheets based on steam heating according to claim 4, characterized in that: An elastic telescopic column (88) is fixed to the outside of the second bonding plate (66), and a Z-shaped rod (87) is fixed to the bottom of the telescopic end of the elastic telescopic column (88). A limiting plate (86) is fixed to the top of the shovel box (85), and the outside of the limiting plate (86) abuts against the outer wall of the vertical support rod of the Z-shaped rod (87).

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