CN113001617A - Automatic cutting equipment for heat-conducting silicon rubber sheet - Google Patents

Automatic cutting equipment for heat-conducting silicon rubber sheet Download PDF

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Publication number
CN113001617A
CN113001617A CN202110302704.4A CN202110302704A CN113001617A CN 113001617 A CN113001617 A CN 113001617A CN 202110302704 A CN202110302704 A CN 202110302704A CN 113001617 A CN113001617 A CN 113001617A
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CN
China
Prior art keywords
heat
plate
driving device
cutting
pressing
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202110302704.4A
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Chinese (zh)
Inventor
梁伟
吴锦峰
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Suzhou Ru Electronic Co ltd
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Suzhou Ru Electronic Co ltd
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Filing date
Publication date
Application filed by Suzhou Ru Electronic Co ltd filed Critical Suzhou Ru Electronic Co ltd
Priority to CN202110302704.4A priority Critical patent/CN113001617A/en
Publication of CN113001617A publication Critical patent/CN113001617A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/04—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member
    • B26D1/06—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member wherein the cutting member reciprocates
    • B26D1/10—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member wherein the cutting member reciprocates in, or substantially in, a direction parallel to the cutting edge
    • B26D1/11—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member wherein the cutting member reciprocates in, or substantially in, a direction parallel to the cutting edge with a plurality of cutting members
    • B26D1/115—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a linearly-movable cutting member wherein the cutting member reciprocates in, or substantially in, a direction parallel to the cutting edge with a plurality of cutting members for thin material, e.g. for sheets, strips or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D5/02—Means for moving the cutting member into its operative position for cutting
    • B26D5/06—Means for moving the cutting member into its operative position for cutting by electrical means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D5/08—Means for actuating the cutting member to effect the cut
    • B26D5/12—Fluid-pressure means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/01—Means for holding or positioning work
    • B26D7/02—Means for holding or positioning work with clamping means
    • B26D7/025—Means for holding or positioning work with clamping means acting upon planar surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/06—Arrangements for feeding or delivering work of other than sheet, web, or filamentary form
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/22—Safety devices specially adapted for cutting machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
    • B26D7/2614—Means for mounting the cutting member

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nonmetal Cutting Devices (AREA)

Abstract

The present invention provides an automatic cutting device for heat-conductive silicon wafer, which comprises: the bottom of the tool rest is connected with a plurality of parallel blades which are arranged at intervals, the blades are arranged at equal intervals, the pressure plate is provided with an avoiding groove for avoiding the blades, when the pressure plate presses the heat-conducting silicon film placed on the bearing plate, the tool rest is rotated downwards to ensure that the cutting edge of the blade passes through the avoiding groove and then protrudes downwards out of the lower surface of the pressure plate, the tool rest is slid to cut the heat-conducting silicon film, a plurality of heat-conducting silicon films can be cut once, the tool rest is reset after the cutting is finished, the cutting action is carried out after the bearing plate is rotated, the long-strip-shaped heat-conducting silicon film can be cut into small blocks, the time and labor are saved, the size is uniform, the edge burrs are less, the standardization degree is high, the mass production operation can be adapted, the tool rest is controlled to move upwards through the contact of the blades and the bearing plate, and the phenomenon, but also to ensure the cutting effect.

Description

Automatic cutting equipment for heat-conducting silicon rubber sheet
Technical Field
The invention relates to the technical field of cutting of heat-conducting silicon rubber sheets, in particular to automatic cutting equipment for heat-conducting silicon rubber sheets.
Background
The heat-conducting silica gel sheet is a heat-conducting insulating material synthesized by taking silica gel as a base material and adding various auxiliary materials such as metal oxides and the like through a special process, and is mainly pasted on chips, diodes, transformers and other electrical elements on a printed circuit board to play the roles of insulation and heat conduction.
Heat conduction silica gel piece on the market is mostly the whole material of A4 paper size, during the use, need cut it into the fritter to the subsides apply, current mode of cutting cuts through the scissors, wastes time and energy, and the standardization level is low, and the heat conduction silica gel piece size of cutting out differs greatly, and the edge burr is many, is difficult to adapt to batched production operation.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides automatic cutting equipment for a heat-conducting silicon rubber sheet.
In order to achieve the above object, the present invention adopts a technical solution that an automatic cutting apparatus for a thermal conductive silicone rubber sheet comprises:
the bearing plate is used for bearing a heat-conducting silicon rubber sheet to be cut and can be arranged in a rotating way;
the first driving device is used for driving the bearing plate to rotate;
the pressing plate is arranged above the bearing plate in a vertically movable manner;
the second driving device is used for driving the pressing plate to move up and down;
the tool rest can move up and down and is arranged above the pressure plate in a horizontally sliding manner;
the third driving device is used for driving the tool rest to move up and down;
the fourth driving device is arranged on the pressing plate and is used for driving the tool rest to slide along the horizontal direction;
the blade is detachably arranged at the bottom of the tool rest and is provided with a plurality of blades which are arranged in parallel and at intervals, and the distance between every two adjacent blades is equal;
the pressing plate is provided with a plurality of avoiding grooves which penetrate through the pressing plate along the vertical direction, the avoiding grooves and the blades are arranged in a one-to-one correspondence mode, the avoiding grooves are long-strip-shaped, and the extending direction of the avoiding grooves is parallel to the sliding direction of the tool rest;
the pressure plate is provided with a pressing state and a lifting state, when the pressure plate is in the pressing state, the lower surface of the pressure plate is attached to the upper surface of the heat-conducting silicon rubber sheet placed on the bearing plate, when the pressure plate is in the lifting state, the lower surface of the pressure plate is separated from the upper surface of the heat-conducting silicon rubber sheet, and a gap for taking and placing the heat-conducting silicon rubber sheet is formed between the pressure plate and the heat-conducting silicon rubber sheet;
the knife rest has a cutting state and a non-cutting state, when the knife rest is in the cutting state, the third driving device drives the knife rest to move downwards until the cutting edge of the blade protrudes downwards from the lower surface of the pressing plate, and when the knife rest is in the non-cutting state, the third driving device drives the knife rest to move upwards until the cutting edge is flush with the lower surface of the pressing plate or higher than the lower surface of the pressing plate;
the blade and the supporting plate are connected in series on a control circuit of the third driving device, and when the cutting edge is contacted with the supporting plate, the control circuit is switched on and controls the tool rest to move upwards by 1-5% of the thickness of the heat-conducting silicon rubber sheet through the third driving device.
Preferably, when the pressing plate is in a pressed state, the distance between the lower surface of the pressing plate and the upper surface of the supporting plate is 95% -99% of the thickness of the heat-conducting silicone rubber sheet.
Preferably, the angle of each rotation of the supporting plate is 90 degrees.
Preferably, the first driving device is located below the bearing plate and connected with the middle of the lower surface of the bearing plate, and the first driving device comprises a cam divider.
Preferably, the second drive means and the third drive means each comprise a servo motor.
Preferably, the fourth driving device comprises two rodless cylinders on the upper surface of the pressing plate, the extending direction of each rodless cylinder is parallel to the extending direction of each avoiding groove, and all the avoiding grooves are located between the two rodless cylinders.
Further preferably, a connecting plate is erected on the sliding blocks of the two rodless cylinders, and the tool rest is arranged below the connecting plate in a vertically movable manner.
Further preferably, the bottom of the blade holder is detachably provided with a mounting block for fixing the blade.
Further preferably, a groove for accommodating the blade and a pressing block for pressing the blade in the groove are formed in the side wall of the mounting block, and the pressing block is connected to the mounting block through a locking screw.
Further preferably, a magnet for attracting the blade is arranged on a groove wall of the groove.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
the present invention provides an automatic cutting device for heat-conductive silicon wafer, which comprises: the bottom of the tool rest is connected with a plurality of parallel blades which are arranged at intervals, the blades are arranged at equal intervals, the pressure plate is provided with an avoiding groove for avoiding the blades, when the pressure plate presses the heat-conducting silicon film placed on the bearing plate, the tool rest is rotated downwards to ensure that the cutting edge of the blade passes through the avoiding groove and then protrudes downwards out of the lower surface of the pressure plate, the tool rest is slid to cut the heat-conducting silicon film, a plurality of heat-conducting silicon films can be cut once, the tool rest is reset after the cutting is finished, the cutting action is carried out after the bearing plate is rotated, the long-strip-shaped heat-conducting silicon film can be cut into small blocks, the time and labor are saved, the size is uniform, the edge burrs are less, the standardization degree is high, the mass production operation can be adapted, the tool rest is controlled to move upwards through the contact of the blades and the bearing plate, and the phenomenon, can ensure the cutting effect, is convenient to use, has good effect and is convenient to realize automatic operation.
Drawings
FIG. 1 is a schematic front view of a preferred embodiment of the present invention
Fig. 2 is a schematic sectional view in the direction of a-a in fig. 1.
Figure 3 is a schematic top view of the support plate of figure 1.
Wherein:
10. a support plate; 11. a divider; 12. a first motor; 20. pressing a plate; 21. a second motor; 22. a screw rod; 23. an avoidance groove; 30. a tool holder; 31. a third motor; 32. a screw rod; 33. a rodless cylinder; 34. a slider; 35. a connecting plate; 36. a support frame; 40. a blade; 41. cutting edges; 50. mounting blocks; 51. a groove; 52. briquetting; 53. locking screws; 54. and a magnet.
Detailed Description
The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the invention easier to understand by those skilled in the art, and thus will clearly and clearly define the scope of the invention.
The up-down direction described in the present invention is the up-down direction in fig. 1, and the front-back direction described in the present invention is the right-left direction in fig. 2.
As shown in FIGS. 1-3, the present invention provides an automatic cutting apparatus for a thermal conductive silicone film, comprising: the device comprises a bearing plate 10, a pressing plate 20, a knife rest 30 and a blade 40, wherein the upper surface of the bearing plate 10 is used for bearing a heat-conducting silicon rubber sheet to be cut, the bearing plate 10 is rotatably arranged, the rotating axis of the bearing plate 10 is perpendicular to the plane of the bearing plate 10, the lower surface of the bearing plate 10 is connected with a first driving device, the first driving device is used for supporting the bearing plate 10 and driving the bearing plate 10 to rotate, specifically, the first driving device comprises a divider 11 and a first motor 12, the divider 11 and the first motor 12 are fixed on the installation surface, the first motor 12 is used for driving the divider 11 to operate, the output shaft of the divider 11 is connected to the middle position of the lower surface of the bearing plate 10 through an insulating sleeve, so that the divider 11 and the bearing plate 10 are kept insulated, and the divider 11 is a four-position cam divider, so that the angle of each rotation of.
The pressing plate 20 is vertically movably disposed over the supporting plate 10, the pressing plate 20 has a pressing state and a lifting state, when the pressing plate 20 is in the pressing state, the lower surface of the pressing plate 20 is attached to the upper surface of the heat-conducting silicone sheet placed on the supporting plate 10, when the pressing plate 20 is in the lifting state, the lower surface of the pressing plate 20 is separated from the upper surface of the heat-conducting silicone sheet, a gap for taking and placing the heat-conducting silicone sheet is formed between the pressing plate 20 and the heat-conducting silicone sheet, in order to ensure that the heat-conducting silicone sheet is pressed and not damaged, when the pressing plate 20 is in the pressing state, the distance between the lower surface of the pressing plate 20 and the upper surface of the supporting plate 10 is 95% -99% of the thickness of the heat-conducting silicone sheet, in this embodiment, the distance is 97% of the thickness of the heat-conducting silicone sheet, a second driving device is further connected to the pressing plate 20, the second driving device is used, in this embodiment, the second driving device includes a second motor 21 and a lead screw 22 symmetrically distributed on both sides of the pressing plate 20, wherein, the second motor 21 is fixed on the mounting surface above the pressure plate 20, the upper end of the screw rod 22 is connected with the output shaft of the second motor 21, the lower end of the screw rod 22 passes through the screw nut on the pressure plate 20, when the screw rod 22 rotates along with the output shaft of the second motor 21, the screw nut moves up and down and drives the pressing plate 20 to move up and down, the second motor 21 and the lead screw 22 are disposed on both sides of the pressing plate 20, so that the pressing force on both sides of the pressing plate 20 can be balanced, and the phenomenon that one end of the pressing plate is tilted to press the heat-conducting silicone sheet is avoided, the second motor 21 adopts a servo motor, this arrangement enables precise control of the distance that the platen 20 moves up and down, which, for ease of guidance, in other embodiments, a guide post and a sliding sleeve are further disposed between the pressure plate 20 and the mounting surface of the second motor 21.
The cutter rest 30 can move up and down and is horizontally arranged above the press plate 20 in a sliding manner, the blades 40 are detachably arranged at the bottom of the cutter rest 30, the blades 40 are arranged in parallel and at intervals, the intervals between the adjacent blades 40 are equal, a plurality of avoiding grooves 23 penetrating through the press plate 20 along the up-down direction are formed in the press plate 20, the avoiding grooves 23 are arranged in one-to-one correspondence with the blades 40, the one-to-one correspondence means that one avoiding groove 23 is formed below each blade 30, each avoiding groove 23 is in a long strip shape, the extending direction of each avoiding groove 23 is parallel to the sliding direction of the cutter rest 30, the third driving device is arranged above the cutter rest 30 and is used for driving the cutter rest 30 to move up and down, the fourth driving device is arranged on the press plate 20 and is used for driving the cutter rest 30 to slide along the horizontal direction, and the cutter rest 30 has a cutting state and a non-cutting state, when the tool holder 30 is in the cutting state, the third driving device drives the tool holder 30 to move downwards until the blade 40 is inserted into the avoiding groove 23 so that the cutting edge 41 of the blade 40 protrudes downwards out of the lower surface of the pressing plate 20, and when the tool holder 30 is in the non-cutting state, the fourth driving device drives the tool holder 30 to move upwards until the cutting edge 41 is flush with the lower surface of the pressing plate 20 or higher than the lower surface of the pressing plate 20.
In this embodiment, the fourth driving device is two rodless cylinders 33 arranged in parallel on the upper surface of the pressing plate 20, the extending direction of the rodless cylinders 33 is parallel to the sliding direction of the avoidance slots 23 and the tool post 30, the two rodless cylinders 33 are arranged near both sides of the pressing plate 20, so that all the avoidance slots 23 are located between the two rodless cylinders 33, the connecting plates 35 are erected on the sliders 34 of the two rodless cylinders 33, the connecting plates 35 are used for enabling the sliders 34 to move synchronously and also used for supporting the third driving device, specifically, the third driving device comprises a third motor 31, a screw rod 32 and a support frame 36, the third motor 31 is arranged on the upper surface of the connecting plates 35, the upper end of the screw rod 32 is connected with the output shaft of the third motor 31, the support frame 36 is door frame-shaped and connected to the upper surface of the tool post 30, the top of the support frame 36 is provided with a nut matched with the screw rod 32, the screw rod 32 passes through the, when the third motor 31 drives the screw rod 32 to rotate, the nut drives the tool post 30 to move up and down through the support frame 36, and in order to accurately control the up-and-down movement distance of the tool post 30, the third motor 31 is a servo motor.
In the present embodiment, the bottom of the tool holder 30 is detachably provided with a mounting block 50 for fixing the blade 40, a groove 51 for accommodating the blade 40 and a pressing block 52 for pressing the blade 40 in the groove 51 are provided on the side wall of the mounting block 50, the pressing block 52 is connected to the mounting block 50 by a locking screw 53, and a magnet 54 for attracting the blade 40 is provided on the groove wall of the groove 51.
In the present embodiment, the blade 40 is an art blade, and the cutting edge 41 of the blade 40 is inclined upward and rearward so that the cutting edge 41 forms an acute angle with the extending direction of the avoiding groove 23, and the tip of the blade 40 is located in front of the cutting edge 41.
Because the thickness of the heat-conducting silica gel sheets of various models is different, the downward movement distance of the knife rest 30 cannot be controlled by a fixed value, and the specific position of the cutting edge 41 is difficult to detect by means of an optical fiber sensor and the like, when the third motor 31 drives the knife rest 30 to move downward, the blade 40 is easy to collide with the supporting plate 10 due to inaccurate distance control, so that the blade 40 is damaged, in the embodiment, the blade 40 and the supporting plate 10 are connected in series on a control circuit of the third motor 31, specifically, a lead wire for connecting the positive pole of the control circuit is arranged on the mounting block 50, the mounting block 50 is electrically conducted with the blade 40, the mounting block 50 is insulated from the knife rest 30, a lead wire for connecting the negative pole of the control circuit is arranged on the supporting plate 10, when the cutting edge 41 is in contact with the supporting plate 10, the control circuit is connected, the knife rest 30 is controlled by the third motor 31 to move upward for a certain distance, too large results in the thermal conductive silicone rubber sheet being difficult to tear after cutting, the distance cannot be too small, too small is easy to damage the blade 40 due to slight unevenness on the upper surface of the supporting plate 10, the distance is preferably 1% -5% of the thickness of the thermal conductive silicone rubber sheet, cutting is performed within this range, the thermal conductive silicone rubber sheet can be kept in a whole state after cutting, and is convenient to take and place, the connecting portion between adjacent pieces of thermal conductive silicone rubber sheet is very thin, and is in a state of being broken and not broken, and can be torn with slight force, in this embodiment, the distance is 3.5%.
When the pressing plate 20 is pressed down, the pressing plate 20 and the supporting plate 10 will extrude the heat-conducting silicone sheet, so that the density of the part of the heat-conducting silicone sheet close to the upper and lower surfaces is increased, when the tip of the blade 40 touches the area with increased density at the initial moment of cutting, the crack is easily caused, and the tip of the blade 40 can avoid the area with increased density by moving the knife rest 30 upwards by 3.5% of the thickness of the heat-conducting silicone sheet, thereby preventing the crack.
In this embodiment, each mounting block 50 is provided with a lead for connecting the positive pole of the control circuit, the guides are connected in parallel, and each guide is provided with an indicator light, when the cutting edge 41 contacts the support plate 10, the indicator light is turned on to indicate that the cutting edge 41 is normal, and the indicator light is turned off to indicate that the cutting edge 41 of the blade 40 corresponding to the indicator light is damaged and needs to be replaced, so that the status of the blade 40 can be conveniently monitored, and the blade can be replaced in time to ensure the cutting effect.
The following description of the operation steps of the apparatus is provided for the understanding of those skilled in the art, and the cutting is mainly divided into the following steps:
1. placing a heat-conducting silica gel sheet to be cut on a supporting plate;
2. the second motor drives the pressing plate to move downwards to a pressing state;
3. the third motor drives the tool rest to move downwards to a cutting state, and at the moment, the cutting edge is positioned in front of the heat-conducting silica gel sheet;
4. the rodless cylinder drives the tool rest to horizontally slide to realize primary cutting, and the cut heat-conducting silicon rubber sheet is in a strip shape;
5. the second motor, the third motor and the rodless cylinder reset, and the first motor drives the bearing plate to rotate by 90 degrees through the divider;
6. repeating the step 2-4 to realize secondary cutting and finish the purpose of cutting the heat-conducting silica gel sheet into small blocks;
7. the second motor, the third motor and the rodless cylinder are reset, and the cut heat-conducting silicon rubber sheet is taken out to be cut.
It should be noted that the present apparatus necessarily includes a logic program controller (such as PLC, etc.) and corresponding gas circuit and circuit control elements to implement the above-mentioned automatic cutting function, but these components and setting modes belong to the prior art, are not inventions in the field, and are not described herein again.
The automatic cutting equipment for the heat-conducting silicon rubber sheet provided by the invention is time-saving and labor-saving in cutting, uniform in size, less in edge burrs and high in standardization degree, can adapt to batch production operation, controls the cutter rest to move upwards through the contact of the blade and the bearing plate, can prevent the phenomenon of cutter collision and ensure the cutting effect, is convenient to use and good in effect, and facilitates the realization of automatic operation.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, and not to limit the scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered within the scope of the present invention.

Claims (10)

1. An automatic cutting apparatus for thermal conductive silicone rubber sheet, comprising:
the bearing plate is used for bearing a heat-conducting silicon rubber sheet to be cut and can be arranged in a rotating way;
the first driving device is used for driving the bearing plate to rotate;
the pressing plate is arranged above the bearing plate in a vertically movable manner;
the second driving device is used for driving the pressing plate to move up and down;
the tool rest can move up and down and is arranged above the pressure plate in a horizontally sliding manner;
the third driving device is used for driving the tool rest to move up and down;
the fourth driving device is arranged on the pressing plate and is used for driving the tool rest to slide along the horizontal direction;
the blade is detachably arranged at the bottom of the tool rest and is provided with a plurality of blades which are arranged in parallel and at intervals, and the distance between every two adjacent blades is equal;
the method is characterized in that:
the pressing plate is provided with a plurality of avoiding grooves which penetrate through the pressing plate along the vertical direction, the avoiding grooves and the blades are arranged in a one-to-one correspondence mode, the avoiding grooves are long-strip-shaped, and the extending direction of the avoiding grooves is parallel to the sliding direction of the tool rest;
the pressure plate is provided with a pressing state and a lifting state, when the pressure plate is in the pressing state, the lower surface of the pressure plate is attached to the upper surface of the heat-conducting silicon rubber sheet placed on the bearing plate, when the pressure plate is in the lifting state, the lower surface of the pressure plate is separated from the upper surface of the heat-conducting silicon rubber sheet, and a gap for taking and placing the heat-conducting silicon rubber sheet is formed between the pressure plate and the heat-conducting silicon rubber sheet;
the knife rest has a cutting state and a non-cutting state, when the knife rest is in the cutting state, the third driving device drives the knife rest to move downwards until the cutting edge of the blade protrudes downwards from the lower surface of the pressing plate, and when the knife rest is in the non-cutting state, the third driving device drives the knife rest to move upwards until the cutting edge is flush with the lower surface of the pressing plate or higher than the lower surface of the pressing plate;
the blade and the supporting plate are connected in series on a control circuit of the third driving device, and when the cutting edge is contacted with the supporting plate, the control circuit is switched on and controls the tool rest to move upwards by 1-5% of the thickness of the heat-conducting silicon rubber sheet through the third driving device.
2. The automatic trimming apparatus for thermal silicone strips as claimed in claim 1, wherein: when the pressing plate is in a pressing state, the distance between the lower surface of the pressing plate and the upper surface of the bearing plate is 95% -99% of the thickness of the heat-conducting silica gel sheet.
3. The automatic trimming apparatus for thermal silicone strips as claimed in claim 1, wherein: the angle of each rotation of the bearing plate is 90 degrees.
4. The automatic trimming apparatus for thermal silicone strips as claimed in claim 1, wherein: the first driving device is positioned below the bearing plate and connected with the middle of the lower surface of the bearing plate, and the first driving device comprises a cam divider.
5. The automatic trimming apparatus for thermal silicone strips as claimed in claim 1, wherein: the second driving device and the third driving device both comprise servo motors.
6. The automatic trimming apparatus for thermal silicone strips as claimed in claim 1, wherein: the fourth driving device comprises two rodless cylinders on the upper surface of the pressing plate, the extending directions of the rodless cylinders are parallel to the extending direction of the avoiding groove, and all the avoiding grooves are located between the two rodless cylinders.
7. The automatic trimming apparatus for thermal silicon wafers as claimed in claim 5, wherein: the connecting plates are erected on the sliding blocks of the two rodless cylinders, and the tool rests are arranged below the connecting plates in a vertically movable mode.
8. The automatic thermal silicone film cutting apparatus as claimed in any one of claims 1 to 7, wherein: the bottom of the knife rest is detachably provided with a mounting block for fixing the blade.
9. The automatic trimming apparatus for thermal silicone strips as claimed in claim 8, wherein: the side wall of the mounting block is provided with a groove for accommodating the blade and a pressing block for pressing the blade in the groove, and the pressing block is connected to the mounting block through a locking screw.
10. The automatic trimming apparatus for thermal silicone strips as claimed in claim 9, wherein: and magnets for adsorbing the blades are arranged on the groove walls of the grooves.
CN202110302704.4A 2021-03-22 2021-03-22 Automatic cutting equipment for heat-conducting silicon rubber sheet Pending CN113001617A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110302704.4A CN113001617A (en) 2021-03-22 2021-03-22 Automatic cutting equipment for heat-conducting silicon rubber sheet

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Application Number Priority Date Filing Date Title
CN202110302704.4A CN113001617A (en) 2021-03-22 2021-03-22 Automatic cutting equipment for heat-conducting silicon rubber sheet

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CN113001617A true CN113001617A (en) 2021-06-22

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CN202110302704.4A Pending CN113001617A (en) 2021-03-22 2021-03-22 Automatic cutting equipment for heat-conducting silicon rubber sheet

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115716288A (en) * 2022-11-21 2023-02-28 常州机电职业技术学院 Mechanical automatic cutting equipment

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115716288A (en) * 2022-11-21 2023-02-28 常州机电职业技术学院 Mechanical automatic cutting equipment
CN115716288B (en) * 2022-11-21 2023-09-26 常州机电职业技术学院 Mechanical automatic cutting equipment

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