CN210552548U

CN210552548U - Calender is used in production of heat conduction silica gel gasket

Info

Publication number: CN210552548U
Application number: CN201921337573.8U
Authority: CN
Inventors: 廖烈华
Original assignee: Suzhou Huimei Packaging Products Co Ltd
Current assignee: Suzhou Huimei Packaging Products Co Ltd
Priority date: 2019-08-17
Filing date: 2019-08-17
Publication date: 2020-05-19
Anticipated expiration: 2029-08-17

Abstract

The utility model discloses a calender for producing heat-conducting silica gel gaskets, which relates to the technical field of heat-conducting silica gel gasket production equipment, and has the key points of the technical scheme that a pressurizing device comprises at least two pressurizing rollers arranged along the width direction of a workbench, the pressurizing rollers comprise rotating shafts and roller bodies coaxially arranged with the rotating shafts, and the roller bodies are superposed along the symmetrical line of the length direction of the workbench and the length of the roller bodies on each pressurizing roller body is sequentially increased along the conveying direction of the heat-conducting silica gel gaskets; the same end of the pressing roller is rotatably connected with a sliding block; be provided with the mounting bracket that is used for installing the sliding block on the workstation, and be provided with on the mounting bracket and be used for ordering about the adjustment mechanism that the sliding block removed along perpendicular to workstation plane direction and be used for carrying out the stop gear that leads to the removal of sliding block. The utility model has the advantages of roll and press evenly and be difficult for remaining the bubble.

Description

Calender is used in production of heat conduction silica gel gasket

Technical Field

The utility model relates to a heat conduction silica gel pad production facility technical field, more specifically says, it relates to a calender is used in heat conduction silica gel pad production.

Background

The existing heat-conducting silica gel gasket is generally produced by adopting the following method:

the flat vulcanizing machine is mainly used for vulcanizing flat rubber belts (such as conveying belts and conveying belts, called flat belts for short) and belongs to hydraulic machinery.

And secondly, rolling the heat-conducting silica gel gasket to produce, coating the flowing heat-conducting silica gel between two layers of substrate films, and rolling, heating and cutting to form the heat-conducting silica gel gasket product with a specific size and thickness. This production mode needs to be carried out by means of a calender.

Chinese patent that application publication number is CN107283882A discloses a heat conduction silica gel pad calendering line, including the calender, the positive right side fixedly connected with treatment agent rubber coating device of calender, the front of calender just is located the left side fixedly connected with lower membrane of treatment agent rubber coating device, the front of calender just is located the top fixedly connected with calender of membrane down, the top of calender just is located the left side of calender and is provided with the membrane, the top of calender just is located the right side of calender and is provided with the glass fabric, the front of calender just is located the left side of calender and is provided with gluey groove.

However, when the heat conductive silicone rubber gasket is produced by using the above rolling line, since a roll-type calender is used, the force is applied to each position in the width direction of the substrate during rolling. When the material is fed at a high speed, if the substrate film is locally loosened and the viscosity of the flowing heat-conducting silica gel is high, the residual bubbles in the heat-conducting silica gel cannot escape in time and are blocked between the two layers of substrate films, so that the substrate films are easy to bubble, and the product forming is influenced.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a calender is used in production of heat conduction silica gel gasket, it has the even and difficult advantage of remaining the bubble of roll compaction.

In order to achieve the above purpose, the utility model provides a following technical scheme:

a calender for producing heat-conducting silica gel gaskets comprises a workbench, a first feeding roller positioned above the workbench, a second feeding roller positioned below the workbench, a feeding device and a pressurizing device for pressurizing and molding the heat-conducting silica gel gaskets, wherein the pressurizing device comprises at least two pressurizing rollers arranged along the width direction of the workbench, each pressurizing roller comprises a rotating shaft and a roller body coaxially arranged with the rotating shaft, the roller bodies are superposed along the symmetrical lines of the length direction of the workbench, and the lengths of the roller bodies on the pressurizing rollers are sequentially increased along the conveying direction of the heat-conducting silica gel gaskets; the same end of the pressing roller is rotatably connected with a sliding block; the workbench is provided with a mounting rack for mounting the sliding block, and the mounting rack is provided with an adjusting mechanism for driving the sliding block to move along the plane direction of the workbench and a limiting mechanism for guiding the movement of the sliding block.

Through adopting above-mentioned technical scheme, first feeding roller and second feeding roller are used for carrying top layer substrate film and bottom substrate film respectively, need carry out preliminary shaping to liquid heat conduction silica gel with the mould in advance when producing heat conduction silica gel gasket, then arrange preliminary fashioned heat conduction silica gel piece in between two-layer substrate film, calendering shaping to suitable thickness. The feeding device can continuously drive the double-layer substrate film to be conveyed along the length direction of the workbench, and the substrate film is sequentially pressed by the pressing rollers.

Because the roll body length of each impression roller increases in proper order, therefore the preliminary fashioned heat conduction silica gel gasket of clamp inlay between the substrate film of both sides forms by the time difference secondary rolling of middle part to both sides on the width direction of workstation. In the rolling process, bubbles between the substrate film and the heat-conducting silica gel and in the heat-conducting silica gel can escape along the width direction of the workbench or against the running direction of the substrate film under the rolling effect, so that the bubbling of the substrate film is reduced, and the product forming quality is improved.

Adjustment mechanism and stop gear's cooperation can adjust the position of impression roller to adjust the size of impression roller rolling effort, thereby the thickness of adjustment shaping product.

Furthermore, the mounting frame is in an inverted U shape and comprises two upright columns arranged perpendicular to the plane of the workbench and a cross beam connected to the top ends of the upright columns; the limiting mechanism is a guide groove arranged on the opposite side surfaces of the two vertical columns, and two ends of the sliding block are respectively inserted into the guide grooves at corresponding positions.

By adopting the technical scheme, when the adjusting mechanism drives the sliding block to move, the end part of the sliding block slides in the guide groove, so that the sliding block can only move along the direction vertical to the plane of the workbench.

Furthermore, the adjusting mechanism comprises an adjusting screw rod inserted into the cross beam of the mounting frame along the length direction of the upright column, and the bottom end of the adjusting screw rod is abutted to the sliding block; the guide groove is provided with an elastic piece which drives the sliding block to move away from the workbench; and one end of the adjusting screw, which is far away from the sliding block, is provided with a driving piece for driving the adjusting screw to rotate.

By adopting the technical scheme, the adjusting screw rod is driven to rotate by the driving piece, so that the sliding block can move downwards, and the elasticity of the elastic piece is overcome. When the adjusting screw rod rotates reversely, the sliding block moves upwards, and the elastic piece recovers deformation.

Further, the driving piece is a hand wheel.

Through adopting above-mentioned technical scheme, simple structure, the simple operation.

Further, the surface of the roller body is coated with a flexible wear-resistant layer.

By adopting the technical scheme, the base material film is not easy to damage, and the rolling acting force is uniform.

Furthermore, the peripheries of the two ends of the roller body in the length direction are arranged in a round chamfer.

Through adopting above-mentioned technical scheme for the roll body periphery is smooth, is difficult for rolling at roll body tip department and forms the indentation and be difficult for fish tail substrate film.

Furthermore, material feeding unit is including setting up in the mortgage wheel of workstation length direction both sides edge and being used for driving the power part of mortgage wheel pivoted, the mortgage wheel axial is parallel with first feed roller and the mortgage wheel is tangent with the workstation plane.

Through adopting above-mentioned technical scheme, the circumference side of pivoted mortgage wheel laminates with substrate film surface, utilizes frictional force can order about the substrate film and carry along workstation length direction.

Further, the power component comprises a driving shaft and a driving motor which are arranged along the width direction of the workbench, and the driving motor and the driving shaft adopt direct transmission, belt transmission, chain transmission or gear transmission; the mortgage wheel is coaxially arranged on the driving shaft.

Through adopting above-mentioned technical scheme, driving motor can order about the mortgage wheel after the circular telegram and rotate, easily control rotational speed and open and stop. Meanwhile, the two mortgage wheels are arranged on the driving shaft, so that the two mortgage wheels can synchronously rotate, the two sides of the base material film are uniformly stressed, and the base material film can be driven to be stably conveyed.

To sum up, the utility model discloses following beneficial effect has:

1. by arranging the pressing rollers with the lengths of the roller bodies increased in sequence, time difference secondary rolling of the substrate film is realized, escape and overflow of bubbles in the flowing heat-conducting silica gel are facilitated, the bubbling problem generated after the substrate is rolled is reduced, and the processing quality is improved;

2. mounting bracket, sliding block and adjusting screw mutually support, can easily adjust the rolling pressure of impression roller, the heat conduction silica gel gasket product of the different thickness of the roll forming of being convenient for.

Drawings

Fig. 1 is a schematic structural diagram of a calender for producing a heat-conducting silica gel pad in the embodiment;

FIG. 2 is a cross-sectional view of a calender for producing a heat-conducting silicone gasket in the embodiment;

FIG. 3 is an enlarged view of portion A of FIG. 2;

FIG. 4 is a top view of a calender for producing a heat-conducting silica gel gasket in the embodiment;

fig. 5 is a schematic structural diagram of a calender for producing a heat-conducting silicone gasket in the embodiment.

In the figure: 1. a work table; 11. a base; 12. a material guide roller; 13. mounting a plate; 131. a bayonet; 132. a clamping block; 133. tightly abutting against the screw rod; 2. a first feeding roller; 3. a second feeding roller; 4. a pressure roller; 41. a rotating shaft; 42. a roller body; 43. a flexible wear layer; 5. a sliding block; 6. a mounting frame; 61. a cross beam; 62. a column; 621. a guide groove; 622. an elastic member; 63. adjusting the screw rod; 631. a hand wheel; 7. a mortgage wheel; 71. a drive shaft; 72. a drive motor; 73. a roll shaft mounting seat.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example (b):

a calender for producing heat-conducting silica gel gaskets refers to fig. 1 and comprises a rectangular flat-plate-shaped workbench 1 and a base 11 for supporting the workbench 1. One end of the length direction of the workbench 1 is respectively provided with a first feeding roller 2 positioned above the workbench 1 and a second feeding roller 3 positioned below the workbench 1 along the width direction of the workbench 1. The first feeding roller 2 and the second feeding roller 3 are detachably mounted through two mounting plates 13 which are arranged in parallel.

Referring to fig. 1 and 2, a mounting plate 13 for mounting the first feeding roller 2 is disposed perpendicular to the top surface of the table 1, and the mounting plate 13 is located at the edge of the table 1. The top end of the mounting plate 13 is provided with a bayonet 131, and the end of the first feeding roller 2 is provided with a block 132. The fixture block 132 is embedded in the bayonet 131, and a fastening screw 133 perpendicular to the axis of the first feeding roller 2 is inserted into the top end of the mounting plate 13. The bottom end of the tightening screw 133 is inserted into the bayonet 131 and pressed against the latch 132, and the top end is connected with a rotating hand wheel 631 to facilitate rotation of the tightening screw 133.

Referring to fig. 1 and 2, the second feeding roller 3 is installed in substantially the same manner as the first feeding roller 2 except that an installation plate 13 for installing the second feeding roller 3 is provided on the bottom surface of the table 1. The end of the working table 1 is provided with a guide roller 12, and the guide roller 12 is also arranged between two mounting plates 13 for mounting the first feeding roller 2. When carrying out heat conduction silica gel gasket calendering processing, set up the PET membrane book as the substrate film on first feeding roller 2 and second feeding roller 3 respectively, two rolls of PET membrane book are unwound the back and are conducted via guide roll 12, after placing rough machining's heat conduction silica gel on the PET membrane of bottom, two-layer PET coincide mutually, then move along 1 length direction of workstation and mangle via pressure device.

Referring to fig. 2 and 3, three pressing rollers 4 are provided in parallel at the middle of the top surface of the table 1, and the pressing rollers 4 are provided in the width direction of the table 1. The pressure roller 4 includes a rotating shaft 41 and a roller body 42 coaxially disposed on the rotating shaft 41, and the diameter of the roller body 42 is larger than that of the rotating shaft 41. The two ends of the rotating shaft 41 are connected with the sliding blocks 5, and the same end of all the rotating shafts 41 is rotatably connected with the same sliding block 5. Therefore, when the sliding block 5 moves, the three pressing rollers 4 can be driven to move synchronously along the direction vertical to the plane of the workbench 1 so as to adjust the magnitude of the rolling pressure.

Referring to fig. 2 and 3, the sliding block 5 is installed by an inverted U-shaped mounting frame 6, the mounting frame 6 includes a cross beam 61 and upright posts 62 vertically arranged at both ends of the cross beam 61, and the bottom ends of the upright posts 62 are fixed on the workbench 1. The opposite side surfaces of the two upright posts 62 of the same mounting frame 6 are both provided with guide grooves 621, and the guide grooves 621 are arranged along the length direction of the upright posts 62. The end of the sliding block 5 extends into the guide groove 621. An elastic member 622 is disposed in the guide groove 621 and located below the sliding block 5, and in this embodiment, the elastic member 622 is a cylindrical compression spring. An adjusting screw 63 is inserted in the middle of the cross beam 61, the bottom end of the adjusting screw 63 abuts against the sliding block 5, and a hand wheel 631 is arranged at the top end. The hand wheel 631 is rotated to make the adjusting screw 63 downwardly press the sliding block 5, so as to drive the sliding block 5 to move downwards against the elastic force of the elastic member 622, thereby changing the magnitude of the pressing pressure of the pressing roller 4.

Referring to fig. 4, the lengths of the roller bodies 42 of the three pressing rollers 4 sequentially increase in the running direction of the substrate on the table 1, and the symmetry lines of the three pressing rollers 4 in the length direction of the table 1 coincide. Therefore, when the substrate film runs along the workbench 1, time difference type rolling is formed from the middle part to two sides, so that the dissipation of bubbles inside the heat-conducting silica gel and between the heat-conducting silica gel and the substrate film is facilitated, bubbling is reduced, and the rolling processing quality is improved.

Referring to fig. 4, in order to increase the stress uniformity at each position during rolling and reduce the scratch to the substrate film, the surface of the roller body 42 is coated with a flexible wear-resistant layer 43, which is a rubber layer selected by the flexible wear-resistant layer 43 in this embodiment. Meanwhile, the end edge of the roller body 42 is arranged in a round chamfer.

Referring to fig. 4 and 5, the work table 1 is further provided with a feeding device, and the feeding device includes a driving shaft 71 parallel to the pressing roller 4, a mortgage wheel 7 coaxially disposed on the driving shaft 71, and a driving motor 72 for providing power for rotation of the driving shaft 71. The mortgage wheel 7 is tangent to the plane of the workbench 1. The driving shaft 71 is mounted to the top surface of the table 1 through a roller shaft mounting base 73, and the mortgage wheels 7 are made of a flexible material such as rubber. The mortgage wheel 7 is arranged at the edge of the workbench 1. The driving motor 72 is disposed on the base 11 and below the table 1. The transmission manner between the driving motor 72 and the driving shaft 71 is various and not limited, and the belt transmission is selected in this embodiment.

The working principle is as follows:

unreel the PET membrane through first feeding roller 2 and second feeding roller 3, place the heat conduction silica gel of rough machining between two-layer PET membrane. The driving motor 72 is electrified to drive the driving shaft 71 and the mortgage wheel 7 to rotate, and the mortgage wheel 7 drives the PET film to move along the length direction of the workbench 1 by using friction force. The PET membrane removes the in-process and rolls via three impression rollers 4 in proper order, because roll body 42 length increases in proper order for roll and press the time difference of acting on the width direction of PET membrane and presenting earlier centre back both sides, not only make the heat conduction silica gel between the two-layer PET membrane mangle to appointed thickness, and do benefit to the bubble loss, thereby reduced the emergence of tympanic bulla problem by a wide margin.

The above-mentioned embodiments are merely illustrative of the present invention, and are not intended to limit the present invention, and those skilled in the art can make modifications to the embodiments without inventive contribution as required after reading the present specification, but all the embodiments are protected by patent laws and protection within the scope of the present invention.

Claims

1. The utility model provides a calender is used in production of heat conduction silica gel gasket, includes workstation (1), is located first feed roller (2) of workstation (1) top, is located second feed roller (3) of workstation (1) below, material feeding unit and is used for the pressure device of pressure forming heat conduction silica gel gasket, its characterized in that: the pressurizing device comprises at least two pressurizing rollers (4) arranged along the width direction of the workbench (1), each pressurizing roller (4) comprises a rotating shaft (41) and a roller body (42) coaxially arranged with the rotating shaft (41), and the roller bodies (42) are superposed along the symmetrical line of the length direction of the workbench (1) and the lengths of the roller bodies (42) on the pressurizing rollers (4) are sequentially increased along the conveying direction of the heat-conducting silica gel gasket; the same end of the pressing roller (4) is rotatably connected with a sliding block (5); be provided with mounting bracket (6) that are used for installing sliding block (5) on workstation (1), and be provided with on mounting bracket (6) and be used for ordering about sliding block (5) along the adjustment mechanism that perpendicular to workstation (1) plane direction removed and be used for carrying out the stop gear that leads to sliding block's (5) removal.

2. The calender for producing heat-conducting silica gel pads as claimed in claim 1, wherein: the mounting frame (6) is in an inverted U shape and comprises two upright columns (62) which are perpendicular to the plane of the workbench (1) and a cross beam (61) connected to the top ends of the upright columns (62); the limiting mechanism is a guide groove (621) formed in the opposite side faces of the two upright posts (62), and the two ends of the sliding block (5) are respectively inserted into the guide grooves (621) at the corresponding positions.

3. The calender for producing heat-conducting silica gel pads as claimed in claim 2, wherein: the adjusting mechanism comprises an adjusting screw rod (63) inserted into the cross beam (61) of the mounting rack (6) along the length direction of the upright column (62), and the bottom end of the adjusting screw rod (63) is abutted to the sliding block (5); the guide groove (621) is provided with an elastic piece (622) which drives the sliding block (5) to move away from the workbench (1); and a driving piece for driving the adjusting screw rod (63) to rotate is arranged at one end, far away from the sliding block (5), of the adjusting screw rod (63).

4. The calender for producing heat-conducting silica gel pads as claimed in claim 3, wherein: the driving piece is a hand wheel (631).

5. The calender for producing heat-conductive silicone gaskets according to any one of claims 1 to 4, characterised in that: the surface of the roller body (42) is coated with a flexible wear-resistant layer (43).

6. The calender for producing heat-conductive silicone gaskets according to any one of claims 1 to 4, characterised in that: the peripheries of two ends of the roller body (42) in the length direction are arranged in a round chamfer way.

7. The calender for producing heat-conducting silica gel pads as claimed in claim 1, wherein: the feeding device comprises a mortgage wheel (7) arranged on the edges of two sides of the length direction of the workbench (1) and a power part used for driving the mortgage wheel (7) to rotate, wherein the mortgage wheel (7) is axially parallel to the first feeding roller (2), and the mortgage wheel (7) is tangent to the plane of the workbench (1).

8. The calender for producing heat-conducting silica gel pads as recited in claim 7, wherein: the power component comprises a driving shaft (71) and a driving motor (72) which are arranged along the width direction of the workbench (1), and the driving motor (72) and the driving shaft (71) adopt direct transmission, belt transmission, chain transmission or gear transmission; the mortgage wheel (7) is coaxially arranged on the driving shaft (71).