A kind of foamed silica gel production is drawn to equipment

Abstract

The utility model discloses a kind of calendering equipment for foamed silica gel production, it is related to calendering equipment technical field;And the utility model includes bottom plate, the top surface of bottom plate is fixedly connected with frame body and support plate, the inside of frame body is provided with first calendering component and second calendering component, first calendering component and second calendering component structure are same, second calendering component includes driving roller and driven roller, support plate is located at one side of frame body, the top surface of support plate is provided with stepped groove, the side of support plate is provided with trimming assembly, trimming assembly includes bolt, the stem of bolt is sleeved with limit disc, the end surface of limit disc is fixedly connected with mounting seat, and the side wall of mounting seat is detachably provided with cutting knife;The utility model can be gradually calendered, to discharge air, avoid in calendered sheet material has bubble, and protect the microporous structure of foamed silica gel, and after calendering, the calendered sheet can be edge finished on line, continuously.

Description

Technical Field

[0001] This utility model relates to the field of calendering equipment technology, specifically a calendering equipment for producing foamed silicone. Background Technology

[0002] Foamed silicone is a high-molecular-weight elastic material with a microporous structure. Due to its advantages such as light weight, softness, heat insulation, and good cushioning properties, it is widely used in sealing, shock absorption, and medical fields. In the production process of foamed silicone, calendering is a key step, aiming to calender the mixed and foamed silicone material into sheets of a predetermined thickness and width. Existing calendering equipment typically consists of two or more parallel rollers, and the sheet thickness is controlled by adjusting the gap between the rollers. However, in practice, because foamed silicone contains a large number of air bubbles after foaming, its structure is loose and weak... The low density of the material, when using hard metal rollers to directly and quickly extrude the soft silicone foam, can lead to crushing or damage to its internal microporous structure, resulting in increased product density, loss of the lightweight and soft properties of the foam material, and the presence of air bubbles in the calendered sheet. Furthermore, during the calendering process, irregular initial shape of the blank, deviation of the feeding direction, or release of internal stress may cause the calendered sheet to have rough and irregular edges. To address these issues, the inventors propose a calendering device for producing foamed silicone to solve these problems. Utility Model Content

[0003] To address the problems of air bubbles remaining in the calendered sheets after calendering of current foamed silicone, which may damage the microporous structure of the foamed silicone during calendering, and the rough and irregular edges of the sheets after calendering, the purpose of this utility model is to provide a calendering device for the production of foamed silicone.

[0004] To solve the above technical problems, the present invention adopts the following technical solution: a calendering device for producing foamed silicone, comprising a base plate, a frame and a support plate fixedly connected to the top surface of the base plate, a first calendering assembly and a second calendering assembly disposed inside the frame, the first calendering assembly and the second calendering assembly having the same structure, the second calendering assembly comprising a drive roller and a driven roller, the driven roller being vertically movable and located directly above the drive roller, the driven roller corresponding to and cooperating with the drive roller, the support plate being located on one side of the frame, the top surface of the support plate being provided with a stepped groove, and a cutting edge assembly being provided on one side of the support plate, the cutting edge assembly comprising a bolt, a limiting plate being sleeved on the shank of the bolt, a mounting base being fixedly connected to the end face of the limiting plate, and a cutting blade being detachably disposed on the side wall of the mounting base.

[0005] Preferably, a concave plate is provided above the driving roller, the driven roller is located inside the concave opening of the concave plate, and the driven roller is rotatably connected to the concave plate. Slider blocks are fixedly connected to both sides of the concave plate. A sliding groove is provided on the inner wall of the frame, and the slider corresponds to and is slidably connected to the sliding groove. Guide plates are fixedly connected to both sides of the top surface of the concave plate, passing through the frame and slidably connected to it. When the concave plate drives the driven roller to rise and fall, the cooperation of the slider and the sliding groove makes the rise and fall of the concave plate more stable. A threaded cylinder is fixedly connected to the center of the top surface of the concave plate, and a screw is rotatably connected to the top surface of the frame. The screw corresponds to and is threadedly connected to the threaded cylinder. A knob is fixedly connected to the top of the screw. Turning the knob allows the screw to rotate. Through the cooperation between the screw and the threaded cylinder, and under the action of the guide plate, the concave plate can be adjusted vertically, thereby adjusting the distance between the driven roller and the driving roller to determine the thickness of the foamed silicone to be calendered. The first calendering assembly is a pre-calendering device. The difference between the first and second calendering assemblies is that the driving roller and the driven roller are made of different materials. The driving roller and the driven roller in the first calendering assembly are tightly wrapped with a soft elastic layer. The elastic layer can be made of material with a Shore hardness of HA. The high-temperature resistant silicone with a Shore hardness of 30 has a relatively soft elastic layer that can perform preliminary and gentle compression on the foamed silicone to expel most of the air without damaging the cell. The second calendering component is the main calendering device. The active roller and the driven roller are tightly wrapped with a relatively hard elastic layer. The elastic layer can be made of high-temperature resistant silicone with a Shore hardness of HA 60, so that fine pressing and thickness determination can be performed during calendering to ensure thickness accuracy.

[0006] Preferably, a housing is fixedly connected to the lower part of the outer side wall of the frame 2. A motor is installed inside the housing. The output shaft of the motor is fixedly connected to the roller shaft of the drive roller. A sprocket is fixedly connected to the output shaft of the motor. A base is provided on the side wall of the motor and fixedly connected to the inner wall of the housing. Starting the motor causes the drive roller to rotate. A chain is provided on the side wall of the sprocket. When the motor starts, the two sprockets rotate synchronously through the chain, thereby causing the drive rollers in the first and second calendering assemblies to rotate. The head of the bolt corresponds to and engages with the large opening of the stepped groove. The rod part corresponds to and fits with the small slot of the stepped groove. The bolt has a nut threaded on its side wall. The outer diameter of the limiting plate is larger than the slot size of the stepped groove. The cutting blade is used to trim the edges of the calendered foamed silicone to remove the rough and irregular edges of the calendered sheet. When adjusting the position of the cutting blade, push the limiting plate so that the bolt moves in the stepped groove, thereby adjusting the lateral position of the cutting blade so that the cutting blade can trim the edges of the calendered sheet. After the adjustment is completed, tighten the nut to limit and fix the limiting plate, and then limit and fix the adjusted cutting blade.

[0007] Compared with the prior art, the advantages of this utility model are as follows: it can perform progressive calendering to remove air, avoid the presence of air bubbles in the calendered sheet, and protect the microporous structure of the foamed silicone. Furthermore, after calendering, the calendered sheet can be trimmed online and continuously to ensure that the width of the finally rolled sheet is accurate and consistent, and the edges are smooth and flat, thereby eliminating the rough and irregular edges of the calendered sheet. Attached Figure Description

[0008] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0009] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0010] Figure 2 This is another structural schematic diagram of the present utility model.

[0011] Figure 3 This is an enlarged view of section A of this utility model.

[0012] Figure 4 This is an enlarged view of section B of this utility model.

[0013] In the diagram: 1. Base plate; 2. Frame; 3. First calendering assembly; 4. Second calendering assembly; 5. Driven roller; 6. Driven roller; 7. Concave plate; 8. Slider; 9. Slide groove; 10. Guide plate; 11. Threaded cylinder; 12. Screw; 13. Knob; 14. Housing; 15. Motor; 16. Sprocket; 17. Support plate; 18. Stepped groove; 19. Edge trimming assembly; 20. Bolt; 21. Limiting plate; 22. Nut; 23. Mounting base; 24. Cutting blade. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Example: Figure 1-4 As shown, this utility model provides a calendering equipment for producing foamed silicone, including a base plate 1. A frame 2 and a support plate 17 are fixedly connected to the top surface of the base plate 1. A first calendering assembly 3 and a second calendering assembly 4 are arranged inside the frame 2. The first calendering assembly 3 and the second calendering assembly 4 have the same structure. The second calendering assembly 4 includes a drive roller 5 and a driven roller 6. The driven roller 6 is vertically movable and located directly above the drive roller 5. The driven roller 6 corresponds to and cooperates with the drive roller 5. The support plate 17 is located on one side of the frame 2. A stepped groove 18 is provided on the top surface of the support plate 17. A cutting edge assembly 19 is provided on one side of the support plate 17. The cutting edge assembly 19 includes a bolt 20. A limiting plate 21 is sleeved on the rod of the bolt 20. A mounting base 23 is fixedly connected to the end face of the limiting plate 21. A cutting blade 24 is detachably provided on the side wall of the mounting base 23.

[0016] A concave plate 7 is provided above the driving roller 5. The driven roller 6 is located in the concave opening of the concave plate 7 and is rotatably connected to the concave plate 7. Slider 8 is fixedly connected to both sides of the concave plate 7. A sliding groove 9 is provided on the inner side wall of the frame 2. The slider 8 corresponds to the sliding groove 9 and is slidably connected.

[0017] By adopting the above technical solution, guide plates 10 are fixedly connected to both sides of the top surface of the concave plate 7. The guide plates 10 pass through the frame 2 and are slidably connected to the frame 2. When the concave plate 7 drives the driven roller 6 to rise and fall, the sliding block 8 and the sliding groove 9 cooperate with each other to make the concave plate 7 rise and fall more smoothly.

[0018] A threaded cylinder 11 is fixedly connected to the center of the top surface of the concave plate 7. A screw 12 is rotatably connected to the top surface of the frame 2. The screw 12 corresponds to the threaded cylinder 11 and is threadedly connected. A knob 13 is fixedly connected to the top of the screw 12.

[0019] By adopting the above technical solution, turning the knob 13 can rotate the screw 12. Through the cooperation between the screw 12 and the threaded cylinder 11, and under the action of the guide plate 10, the concave plate 7 can be adjusted vertically, thereby adjusting the distance between the driven roller 6 and the driving roller 5 to fix the thickness of the foamed silicone to be calendered. The first calendering component 3 is a pre-calendering device. The difference between the first calendering component 3 and the second calendering component 4 is that the driving roller 5 and the driven roller 6 are made of different materials. The driving roller 5 and the driven roller 6 in the first calendering component 3 are tightly wrapped with a softer elastic layer. The elastic layer can be made of high-temperature resistant silicone with a Shore hardness of HA 30. The softer elastic layer can perform preliminary and gentle compression on the foamed silicone to expel most of the air without damaging the cell. The second calendering component 4 is the main calendering device. The driving roller 5 and the driven roller 6 are tightly wrapped with a harder elastic layer. The elastic layer can be made of high-temperature resistant silicone with a Shore hardness of HA 30. The high-temperature resistant silicone with a strength of 60 allows for precision pressing and thickness determination during calendering, ensuring thickness accuracy.

[0020] A housing 14 is fixedly connected to the lower part of the outer side wall of the frame 2. A motor 15 is installed inside the housing 14. The output shaft of the motor 15 is fixedly connected to the roller shaft of the drive roller 5. A sprocket 16 is fixedly connected to the output shaft of the motor 15.

[0021] By adopting the above technical solution, a base is provided on the side wall of the motor 15, and the base is fixedly connected to the inner wall of the housing 14. Starting the motor 15 can cause the drive roller 5 to rotate. Figure 2 as well as Figure 3 As shown, a chain is provided on the side wall of the sprocket 16. When the motor 15 is started, the two sprockets 16 can rotate synchronously through the chain, which in turn can make the drive roller 5 in the first calender assembly 3 and the second calender assembly 4 rotate.

[0022] The head of the bolt 20 corresponds to and fits the large slot of the stepped groove 18, the shank of the bolt 20 corresponds to and fits the small slot of the stepped groove 18, the side wall of the bolt 20 is threaded with a nut 22, and the outer diameter of the limiting plate 21 is larger than the slot size of the stepped groove 18.

[0023] By adopting the above technical solution, the cutting blade 24 is used to trim the edges of the calendered foamed silicone to remove the rough and irregular edges of the calendered sheet. When adjusting the position of the cutting blade 24, the limiting plate 21 is pushed so that the bolt 20 moves in the stepped groove 18, thereby adjusting the lateral position of the cutting blade 24 so that the cutting blade 24 can trim the edges of the calendered sheet. After the adjustment is completed, the nut 22 is tightened to limit and fix the limiting plate 21, thereby limiting and fixing the adjusted cutting blade 24.

[0024] Working principle: When this utility model is in use, when it is necessary to perform calendering operation on foamed silicone, the material to be calendered passes through the first calendering component 3 and the second calendering component 4 in sequence, and the end of the calendered sheet is fixed to the winding roller in the external traction winding mechanism. Turning the knob 13 can rotate the screw 12. Through the cooperation between the screw 12 and the threaded cylinder 11, and under the action of the guide plate 10, the concave plate 7 can be adjusted up and down, thereby adjusting the distance between the driven roller 6 and the driving roller 5 to fix the thickness of the foamed silicone to be calendered. The start motor 15, via a chain, enables the two sprockets 16 to rotate synchronously, thereby causing the drive rollers 5 in the first calendering assembly 3 and the second calendering assembly 4 to rotate. The drive rollers 5 and driven rollers 6 in the first calendering assembly 3 are tightly wrapped with a relatively soft elastic layer. The elastic layer can be made of high-temperature resistant silicone with a Shore hardness of HA 30. The relatively soft elastic layer can perform preliminary and gentle compression on the foamed silicone to expel most of the air without damaging the foam cells. The second calendering assembly 4 is the main calendering device. The drive rollers 5 and driven rollers 6 are tightly wrapped with a relatively hard elastic layer. The elastic layer can be made of high-temperature resistant silicone with a Shore hardness of HA 60, so that fine pressing and thickness determination can be performed during calendering to ensure thickness accuracy. When the calendered sheet is wound up by an external winding roller, the cutting blade 24 can trim the edges of the calendered foamed silicone on the support plate 17 to remove the rough and irregular edges of the calendered sheet. When adjusting the position of the cutting blade 24, push the limiting plate 21 so that the bolt 20 moves in the stepped groove 18, thereby adjusting the lateral position of the cutting blade 24 so that the cutting blade 24 can trim the edges of the calendered sheet. After the adjustment is completed, tighten the nut 22 to limit and fix the limiting plate 21, and then limit and fix the adjusted cutting blade 24.

[0025] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0026] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A calendering device for producing foamed silicone, comprising a base plate (1), characterized in that: The top surface of the base plate (1) is fixedly connected to a frame (2) and a support plate (17). The frame (2) contains a first rolling assembly (3) and a second rolling assembly (4). The first rolling assembly (3) and the second rolling assembly (4) have the same structure. The second rolling assembly (4) includes a drive roller (5) and a driven roller (6). The driven roller (6) is vertically movable and positioned directly above the drive roller (5). The driven roller (6) corresponds to the drive roller (5) and... In conjunction with this, the support plate (17) is located on one side of the frame (2), the top surface of the support plate (17) is provided with a stepped groove (18), and one side of the support plate (17) is provided with a cutting edge assembly (19). The cutting edge assembly (19) includes a bolt (20), the shank of the bolt (20) is fitted with a limiting plate (21), the end face of the limiting plate (21) is fixedly connected with a mounting base (23), and the side wall of the mounting base (23) is detachably provided with a cutting blade (24).

2. The calendering equipment for producing foamed silicone as described in claim 1, characterized in that, A concave plate (7) is provided above the driving roller (5), and the driven roller (6) is located in the concave opening of the concave plate (7), and the driven roller (6) is rotatably connected to the concave plate (7).

3. The calendering equipment for producing foamed silicone as described in claim 2, characterized in that, The concave plate (7) is fixedly connected to sliders (8) on both sides, and the inner wall of the frame (2) is provided with a sliding groove (9). The slider (8) corresponds to the sliding groove (9) and is slidably connected.

4. The calendering equipment for producing foamed silicone as described in claim 2, characterized in that, A threaded cylinder (11) is fixedly connected to the middle of the top surface of the concave plate (7), and a screw (12) is rotatably connected to the top surface of the frame (2). The screw (12) corresponds to the threaded cylinder (11) and is threadedly connected. A knob (13) is fixedly connected to the top of the screw (12).

5. The calendering equipment for producing foamed silicone as described in claim 1, characterized in that, The lower part of the outer side wall of the frame (2) is fixedly connected to a housing (14), and a motor (15) is installed inside the housing (14). The output shaft end of the motor (15) is fixedly connected to the roller shaft of the drive roller (5), and a sprocket (16) is fixedly connected to the output shaft of the motor (15).

6. The calendering equipment for producing foamed silicone as described in claim 1, characterized in that, The head of the bolt (20) corresponds to and fits with the large slot of the stepped groove (18), and the shank of the bolt (20) corresponds to and fits with the small slot of the stepped groove (18).

7. The calendering equipment for producing foamed silicone as described in claim 1, characterized in that, The bolt (20) has a nut (22) threaded on its side wall, and the outer diameter of the limiting plate (21) is larger than the groove size of the stepped groove (18).

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