A multi-station circular knife machine wrapping conductive foam device

Abstract

The present invention discloses a device for wrapping conductive foam with a multi-station circular knife machine, which sequentially comprises a cutting device for cutting a pressure-sensitive adhesive with release paper into pressure-sensitive adhesive strips, a gluing device for separating the release paper from the pressure-sensitive adhesive strips and bonding the pressure-sensitive adhesive to the conductive foam, the cutting device comprises a mounting platform, a bracket is arranged on the upper surface of the mounting platform, a driving motor for driving the mounting roller to rotate is arranged on the bracket, a plurality of rollers coaxial with the mounting roller are fixed on the mounting roller, and an abutting roller is rotatably connected on the bracket to cooperate with the roller and cut the pressure-sensitive adhesive into a plurality of pressure-sensitive adhesive strips. The present application has the function of improving the efficiency of pasting pressure-sensitive adhesive on conductive foam.

Description

Technical Field

[0001] The invention relates to the field of conductive foam production equipment, in particular to a conductive foam wrapping device using a multi-station circular knife machine. Background Art

[0002] With the advent of the 5G era, mobile phones are gradually becoming thinner and lighter. The thickness of the traditional hot-melt adhesive wrapped conductive foam is limited due to the thickness of the seams and the side hot-melt adhesive, which can no longer meet the requirements of the new era mobile phones for the thickness and compressive stress of the conductive foam.

[0003] In the related art, in order to ensure the quality of the conductive foam, acrylic pressure-sensitive adhesive is usually used to cold-stick and semi-wrap the conductive foam instead of wrapping the conductive foam with hot-melt adhesive. The traditional cold-sticking process requires multiple process steps. Workers manually cut the acrylic pressure-sensitive adhesive with release paper into corresponding sizes, then tear off the release paper on the acrylic pressure-sensitive adhesive, and stick the cut acrylic pressure-sensitive adhesive on the conductive foam.

[0004] Regarding the above-mentioned related technologies, the inventors believe that in the above-mentioned production process, the above-mentioned process mainly realizes the pasting of acrylic pressure-sensitive adhesive on the conductive foam by manual means, but the demand for conductive foam is large, and there are problems of high labor cost and low production efficiency. Summary of the invention

[0005] In order to improve the production efficiency of conductive foam, the present application provides a conductive foam wrapping device using a multi-station circular knife machine.

[0006] The present application provides a multi-station circular knife machine wrapping conductive foam device adopts the following technical solution:

[0007] A device for wrapping conductive foam with a multi-station circular knife machine, which comprises, in sequence, a cutting device for cutting a pressure-sensitive adhesive with release paper attached into pressure-sensitive adhesive strips, a gluing device for separating the release paper from the pressure-sensitive adhesive strips and bonding the pressure-sensitive adhesive to the conductive foam, the cutting device comprising a mounting table, a bracket being arranged on the upper surface of the mounting table, a driving motor for driving a mounting roller to rotate the mounting roller being arranged on the bracket, a plurality of rollers coaxial with the mounting roller being fixed on the mounting roller, and an abutting roller rotatably connected to the bracket for cooperating with the roller and cutting the pressure-sensitive adhesive into a plurality of pressure-sensitive adhesive strips.

[0008] By adopting the above technical scheme, the whole sheet of pressure-sensitive adhesive with release paper attached passes through the installation roller and the abutment roller, and the driving motor drives the installation roller to rotate, so that the roller fixed on the installation roller and the abutment roller work together to cut the pressure-sensitive adhesive into pressure-sensitive adhesive strips, remove the release paper on the pressure-sensitive adhesive strips, and make several pressure-sensitive adhesive strips pass through the gluing device. Under the action of the gluing device, the pressure-sensitive adhesive is simultaneously bonded to several conductive foams, and the conductive foams are driven to move to the designated position for cutting.

[0009] Optionally, the bracket includes two groups of guide rods fixed to the upper surface of the mounting table, the guide rods are vertically arranged, the same group of guide rods includes two and are located on the same side of the mounting table, the same group of guide rods is provided with a sliding block connected to the other adjacent guide rod, the mounting roller is detachably connected to the sliding block, a mounting block connecting two adjacent guide rods is provided below the sliding block, the abutment roller is rotatably connected to the two mounting blocks, a vertically arranged compression spring is fixed to the upper surface of the mounting table between the same group of guide rods, the compression spring is fixed to the lower end surface of the mounting block and pushes the abutment roller to press against the hob, a positioning rod connecting the two guide rods is fixed to the upper end surface of the same group of guide rods, the positioning rod is provided with a positioning screw that vertically penetrates the positioning rod and is threadedly connected to the positioning rod, and the lower end of the positioning screw is rotatably connected to a positioning block that is slidably clamped between the two guide rods.

[0010] By adopting the above technical solution, the positioning screw is acted on so that the positioning screw pushes the positioning block to move downward, and the lower surface of the positioning block is pressed against the upper surface of the sliding block, thereby driving the roller to press against the contact roller, which is convenient for cutting the pressure-sensitive adhesive. The arrangement of the compression spring makes the contact roller suitable for rollers of different diameters, and at the same time avoids damage to the roller due to granular objects on the pressure-sensitive adhesive.

[0011] Optionally, one of the sliding blocks is fixed with a connecting bearing connected to the mounting roller shaft, the other sliding block is connected with a connecting cylinder coaxial with the connecting bearing, the output shaft of the drive motor is fixed to the connecting cylinder, a connecting groove is provided on the inner wall of the connecting cylinder, and a connecting block is fixed on the mounting roller shaft which is clamped in the connecting groove and can rotate synchronously with the connecting cylinder.

[0012] By adopting the above technical solution, one end of the installation roller is connected to the connecting bearing, and the other end is connected to the connecting groove in the connecting cylinder. Under the action of the driving motor, the connecting cylinder and the installation roller are driven to rotate, so that the roller cuts the pressure-sensitive adhesive, which facilitates the replacement of the installation roller.

[0013] Optionally, a vertically arranged mounting rod is slidably provided on the mounting platform outside the same group of guide rods, a sliding groove is provided on the upper surface of the mounting platform parallel to the movement direction of the pressure-sensitive adhesive, a sliding block is fixed to the lower end surface of the mounting rod, the sliding block is slidably engaged in the sliding groove and prevents the mounting rod from moving upward, a driving cylinder is fixed to the upper surface of the mounting platform for pushing the mounting rod to move toward the adjacent guide rod, a plurality of arc grooves are provided on the opposite side walls of the guide rod and the mounting rod, two opposite arc grooves are connected to each other and form a cylindrical groove, a cleaning roller is provided on the cylindrical groove, the cleaning roller is connected to the two cylindrical grooves and is parallel to the mounting roller, and a velvet cloth abutting against the roller is fixed to the outer wall of the cleaning roller.

[0014] By adopting the above technical solution, the driving cylinder is acted on to drive the installation roller to move in the direction close to the corresponding guide rod, and the guide roller is installed in the corresponding arc groove, so that the flannel on the guide roller contacts the roller to wipe the paper scraps adsorbed on the roller.

[0015] Optionally, the cutter roller is sleeved on the mounting roller, a mounting cylinder is sleeved on the mounting roller between two adjacent cutters, the side wall of the cutter roller abuts against the corresponding mounting cylinder, and mounting rings are threadedly connected at both ends of the mounting roller to make the mounting cylinder press against the cutter roller.

[0016] By adopting the above technical solution, the installation ring is rotated so that the installation ring pushes the installation cylinder to clamp the hob, thereby realizing the installation of the hob on the installation shaft, which is convenient for the installation, disassembly and replacement of the hob.

[0017] Optionally, a mounting groove coaxial with the mounting cylinder is provided on the end face of the mounting cylinder, an abutment cylinder sleeved on the mounting roller is threadedly connected in the mounting groove, a rubber pad abutting against the side wall of the roller is fixed to the end of the abutment cylinder, and a positioning mechanism is provided in the mounting cylinder to prevent the abutment cylinder from rotating relative to the mounting cylinder.

[0018] By adopting the above technical solution, the abutting cylinder is rotated to move the abutting cylinder toward the outside of the installation cylinder, so that the rubber pad is pressed against the side wall of the roller, thereby adjusting the distance between adjacent rollers to meet the requirements of different sizes of conductive foam.

[0019] Optionally, a positioning groove coaxial with the mounting tube is provided at the end of the mounting tube along the axial direction, and the positioning mechanism includes a positioning toothed ring slidably engaged in the positioning groove, the positioning toothed ring is sleeved on the abutting tube, and a retaining ring is fixed in the positioning groove to prevent the positioning toothed ring from disengaging from the positioning groove. The inner wall of the mounting tube is provided with a telescopic groove with an inner diameter larger than the mounting groove, the thread on the abutting tube is located at the end of the abutting tube away from the positioning toothed ring, and the thread on the abutting tube can extend into the telescopic groove and slide axially in the telescopic groove. A number of positioning springs are fixed in the positioning groove to push the positioning toothed ring to abut against the retaining ring, and a yield groove coaxial with the abutting tube is provided on the outer wall of the abutting tube, and a positioning gear sleeved on the outside of the abutting tube is fixed in the yield groove, the positioning toothed ring can mesh with the positioning gear and prevent the positioning gear from rotating, and the positioning mechanism also includes a positioning component arranged in the positioning groove and separating the positioning toothed ring from the positioning gear.

[0020] By adopting the above technical scheme, the positioning gear ring is acted on to make the positioning gear ring move toward the positioning groove, and the positioning gear ring is separated from the positioning gear. At this time, the abutment cylinder can be rotated relative to the mounting groove, so that the abutment cylinder moves axially toward the mounting cylinder. Since the end of the abutment cylinder abuts against the side wall of the hob, the distance between two adjacent hobs is adjusted to meet different needs. When the abutment roller is adjusted to the specified position, it acts on the positioning assembly, and under the action of the positioning spring, the positioning gear disc is pushed to engage with the positioning to prevent the abutment cylinder from rotating relative to the mounting cylinder.

[0021] Optionally, the positioning assembly includes a positioning plate fixed to the end of the abutment tube and coaxial with the abutment tube, the positioning plate abuts against the end face of the driving gear ring and can push the positioning gear ring to move toward the positioning groove, the rubber pad is fixed to the positioning plate, and a movable groove is axially opened on the bottom wall of the positioning groove, a movable rod is fixed on the end face of the positioning gear ring away from the positioning plate, the movable rod is an elastic rod and a movable block is fixed to the end of the movable rod away from the positioning gear ring, the mounting tube is radially threaded with a positioning bolt, and a positioning protrusion extending into the movable groove is fixed on the end of the positioning bolt, and the positioning protrusion is used to clamp the movable block and separate the positioning gear ring from the positioning gear.

[0022] By adopting the above technical solution, the abutment tube is pushed to move toward the installation groove, and one end of the abutment tube with a thread slides in the telescopic groove, and the positioning plate pushes the positioning gear ring to move toward the positioning groove, and the positioning gear ring is separated from the positioning groove, and the positioning gear ring moves to the yielding groove. During the movement of the positioning gear ring, the movable rod drives the movable block to move toward the movable groove, and the movable rod produces elastic deformation, so that the movable block abuts against the side of the positioning protrusion away from the positioning plate, and the positioning gear ring is separated from the positioning gear, so that the abutment tube can rotate relative to the installation tube, and the abutment tube is rotated to move the abutment tube to the specified position, and the positioning bolt is used to separate the positioning protrusion from the movable block. Under the action of the positioning spring, the positioning gear ring is pushed to engage with the positioning gear.

[0023] Optionally, the gluing device includes two positioning tables, the two positioning tables correspond to odd-numbered and even-numbered pressure-sensitive adhesive strips respectively, the upper surface of the positioning table is provided with a plurality of guide grooves which are parallel to each other and for the pressure-sensitive adhesive strips to pass through, the distance between the two guide grooves is the width of the corresponding pressure-sensitive adhesive strips, the upper surface of the positioning table is fixed with a plurality of pressure plates which prevent the pressure-sensitive adhesive strips from escaping from the guide grooves, the discharge end of the guide groove is rotatably connected to a guide roller, two adjustment disks are threadedly connected to the guide roller, the pressure-sensitive adhesive strip is located between the two adjustment disks, and the gluing device also includes an extrusion mechanism which makes the pressure-sensitive adhesive strip adhere to the conductive foam.

[0024] By adopting the above technical solution, the pressure-sensitive adhesive strip passes through the corresponding guide groove, and the adjustment disk is rotated to drive the pressure-sensitive adhesive to move axially along the guide roller, thereby adjusting the movement trajectory of the pressure-sensitive adhesive according to the position tube of the conductive foam.

[0025] Optionally, the extrusion mechanism includes a fixed plate, the upper surface of which is provided with a placement groove, a movable plate is placed in the placement groove, the upper surface of the movable plate is provided with a plurality of limiting grooves corresponding to the pressure-sensitive adhesive strip and used for placing the conductive foam, the fixed plate is connected to a vertically arranged extrusion cylinder, the extrusion cylinder is connected to a horizontally arranged extrusion plate, and the extrusion plate is rotatably connected to a plurality of extrusion rollers that push the pressure-sensitive adhesive strip to adhere to the corresponding conductive foam.

[0026] By adopting the above technical solution, the pressure-sensitive adhesive passes through between the extrusion roller and the conductive foam, the extrusion cylinder is started, so that the extrusion roller drives the pressure-sensitive adhesive to move downward, the conductive foam is adsorbed on the pressure-sensitive adhesive strip, and the pressure-sensitive adhesive adsorbed with the conductive foam is transferred to the designated position for cutting.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] 1. The pressure-sensitive adhesive passes through the roller and the abutting roller, and is cut into pressure-sensitive adhesive strips under the action of the roller. The odd-numbered pressure-sensitive adhesive strips and the even-numbered pressure-sensitive adhesive strips pass through the guide grooves of different positioning plates and move between the extrusion roller and the sliding plate. The extrusion cylinder drives the pressure-sensitive adhesive strips to move downward, and the conductive foam is adsorbed on the pressure-sensitive adhesive strips for later cutting;

[0029] 2. Rotate the abutment tube to move it in the installation groove, so that the rubber pad at the end of the abutment tube abuts against the side wall of the roller, thereby adjusting the distance between two adjacent rollers. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 The present embodiment is only used to show the overall processing structure diagram of an odd or even number of pressure-sensitive adhesive strips bonded to the conductive foam.

[0031] Figure 2 It is a schematic diagram of the overall structure of the cutting device of an embodiment of the present application.

[0032] Figure 3 It is a schematic diagram of the connection structure of the hob on the mounting roller according to an embodiment of the present application.

[0033] Figure 4 It is a schematic diagram used to illustrate the internal structure of the installation tube in an embodiment of the present application.

[0034] Figure 5 It is a schematic diagram of the structure of the positioning plate of the embodiment of the present application.

[0035] Figure 6 yes Figure 5 Schematic diagram of the enlarged structure of part A.

[0036] Figure 7 It is a schematic diagram of the structure of the extrusion mechanism of the embodiment of the present application.

[0037] Description of reference numerals:

[0038] 1. Mounting table; 2. Bracket; 3. Guide rod; 4. Sliding block; 5. Mounting roller; 6. Hob; 7. Connecting bearing; 8. Connecting cylinder; 9. Connecting groove; 10. Connecting block; 11. Driving motor; 12. Mounting block; 13. Abutting roller; 14. Compression spring; 15. Positioning block; 16. Positioning rod; 17. Positioning screw; 18. Hand wheel; 19. Limiting rod; 20. Mounting rod; 21. Sliding groove; 22. Sliding block; 23. Driving cylinder; 24. Arc groove; 25. Cleaning roller; 26. Flannel cloth; 27. Mounting cylinder; 28. Mounting ring; 29. ​​Mounting slot; 30, abutment cylinder; 31, positioning slot; 32, positioning gear ring; 33, retaining ring; 34, give way slot; 35, positioning gear; 36, telescopic slot; 37, positioning plate; 38, rubber pad; 39, movable slot; 40, movable rod; 41, movable block; 42, positioning bolt; 43, positioning convex block; 44, positioning platform; 45, guide slot; 46, pressure plate; 47, guide roller; 48, adjustment plate; 49, fixed plate; 50, placement slot; 51, movable plate; 52, limit slot; 53, extrusion cylinder; 54, extrusion plate; 55, extrusion roller; 56, positioning spring. DETAILED DESCRIPTION

[0039] The following is combined with Figure 1-7 This application is described in further detail.

[0040] The present application embodiment discloses a multi-station circular knife machine wrapping conductive foam device. Figure 1 , which includes a cutting device for cutting the pressure-sensitive adhesive with release paper into a pressure-sensitive adhesive strip, and a gluing device for separating the release paper from the pressure-sensitive adhesive strip and bonding the pressure-sensitive adhesive strip to the conductive foam.

[0041] Reference Figure 1 and Figure 2 The cutting device includes a horizontally arranged mounting platform 1, a vertically arranged bracket 2 is fixed on the upper surface of the mounting platform 1, and the bracket 2 includes two groups of guide rods 3 welded on the upper surface of the mounting platform 1, and the same group of guide rods 3 is located on the same side of the upper surface of the mounting platform 1, and the connecting line of the two groups of guide rods 3 is perpendicular to the direction of movement of the pressure-sensitive adhesive. A sliding block 4 is slidably arranged between the same group of guide rods 3, and the sliding block 4 abuts on the opposite side walls of the two guide rods 3. The sliding block 4 is rotatably connected to a horizontally arranged mounting roller 5, and the mounting roller 5 connects the two sliding blocks 4. The mounting roller 5 is connected to a plurality of rollers 6 coaxial with the mounting roller 5.

[0042] Reference Figure 2 and Figure 3 , one sliding block 4 is fixed with a connecting bearing 7 on the surface relative to the other sliding block 4, and a connecting cylinder 8 coaxial with the connecting bearing 7 is rotatably connected to the other sliding block 22, and a connecting groove 9 with a rectangular cross section is opened on the inner wall of the connecting cylinder 8. One end of the rotating shaft of the installation roller 5 is inserted into the connecting bearing 7, and a connecting block 10 is welded on the other end. The cross section of the connecting block 10 is a rectangle that matches the connecting groove 9. A driving motor 11 is fixed to the sliding block 4 by bolts, and the output shaft of the driving motor 11 is welded to the connecting cylinder 8, and drives the connecting cylinder 8 to rotate.

[0043] Reference Figure 1 and Figure 2 , a mounting block 12 is slidably arranged between the same group of guide rods 3, the mounting block 12 abuts against the opposite side walls of the two guide rods 3 and the mounting block 12 is located below the sliding block 4, and an abutting roller 13 is rotatably connected to the mounting block 12, and the abutting roller 13 connects the two mounting blocks 12 and is parallel to the mounting roller 5. A vertically arranged compression spring 14 is fixed to the upper surface of the mounting platform 1 below the abutting roller 13, the lower end of the compression spring 14 is welded to the upper surface of the mounting platform 1, and the upper end is welded to the lower surface of the mounting block 12 and pushes the mounting block 12 to move upward, so that the abutting roller 13 abuts against the hob 6.

[0044] Reference Figure 1 and Figure 2 A positioning block 15 is provided between the same group of guide rods 3 for sliding movement. The positioning block 15 abuts against the opposite side walls of the two guide rods 3 and is located above the sliding block 4. A positioning rod 16 connected to the same group of guide rods 3 is fixed to the upper end surface of the guide rod 3 by bolts. The positioning rod 16 is arranged horizontally. A positioning screw 17 penetrating the upper and lower end surfaces of the positioning rod 16 is provided on the positioning rod 16. The positioning screw 17 is threadedly connected to the positioning rod 16. A hand wheel 18 is welded on the upper end of the positioning rod 16 to facilitate the rotation of the positioning rod 16, and the lower end is rotatably connected to the upper end surface of the positioning block 15.

[0045] Reference Figure 2 and Figure 3 The sliding block 4, the mounting block 12 and the positioning block 15 are abutted against the side wall of the guide rod 3, and a limiting rod 19 for clamping the guide rod 3 is integrally formed to prevent the sliding block 4, the mounting block 12 and the positioning block 15 from moving in the horizontal direction. The pressure-sensitive adhesive passes between the abutting roller 13 and the roller 6, and under the action of the positioning spring 56, the mounting block 12 is pushed upward to make the abutting roller 13 press against the roller 6, and under the action of the positioning block 15, the positioning block 15 presses against the sliding block 4 to prevent the sliding block 4 from moving upward. The driving motor 11 drives the mounting roller 5 to rotate, and the mounting roller 5 drives the roller 6 to rotate. During the rotation of the roller 6, the pressure-sensitive adhesive is cut into a plurality of pressure-sensitive adhesive strips.

[0046] Reference Figure 1 and Figure 2 , a mounting rod 20 is slidably arranged on the upper surface of the mounting platform 1 outside the same group of guide rods 3. The mounting rod 20 is vertically arranged and can move in a direction parallel to the movement of the pressure-sensitive adhesive. A sliding groove 21 parallel to the movement direction of the pressure-sensitive adhesive is opened on the upper surface of the mounting platform 1. A sliding block 22 is welded on the lower end surface of the mounting rod 20 and is slidably engaged in the corresponding sliding groove 21. The cross-sections of the sliding groove 21 and the sliding block 22 are "T" shaped, and the sliding block 22 abuts against the inner wall of the sliding groove 21. A driving cylinder 23 is fixed to the upper surface of the mounting platform 1 by bolts, and the connecting rod of the driving cylinder 23 is welded to the side wall of the mounting rod 20. And it can push the mounting rod 20 to move toward the adjacent guide rod 3. A plurality of arc grooves 24 are provided on the opposite side walls of the guide rod 3 and the mounting rod 20. When the mounting rod 20 abuts against the side wall of the guide rod 3, the arc grooves 24 at the same height form cylindrical grooves that are interconnected. A cleaning roller 25 is rotatably connected to the cylindrical groove. The cleaning roller 25 is parallel to the mounting roller 5 and is connected to the corresponding two cylindrical grooves. A fleece cloth 26 surrounding the cleaning roller 25 is bonded to the outer wall of the cleaning roller 25. The fleece cloth 26 is a non-woven fabric with a fleece-treated surface and is soft in texture. The roller 6 and the pressure-sensitive adhesive abut against the fleece cloth 26 and are used to clean impurities on the pressure-sensitive adhesive and the roller 6 under the action of the fleece cloth 26.

[0047] Reference Figure 3 and Figure 4 The cutter 6 is sleeved on the installation roller 5. The installation roller 5 between two adjacent cutters 6 is sleeved with a mounting cylinder 27. The side wall of the cutter 6 abuts against the end faces of the two mounting cylinders 27. The two ends of the installation roller 5 are threadedly connected with mounting rings 28. The mounting rings 28 are rotated to push the mounting cylinder 27 against the cutter 6, thereby fixing the cutter 6 on the installation roller 5. One end face of the mounting cylinder 27 is provided with a mounting groove 29 coaxial with the mounting cylinder 27. The mounting groove 29 is connected with the internal cavity of the mounting cylinder 27. The mounting groove 29 is threadedly connected with an abutting cylinder 30. The abutting cylinder 30 can be sleeved on the installation roller 5. The abutting cylinder 30 can move toward the outside of the mounting cylinder 27 and abut against the side wall of the cutter 6, thereby adjusting the distance between two adjacent cutters 6.

[0048] Reference Figure 3 and Figure 4One end of the mounting tube 27 having the mounting groove 29 is axially provided with a positioning groove 31 coaxial with the mounting tube 27. The positioning groove 31 is communicated with the mounting groove 29 and has an inner diameter larger than that of the mounting groove 29. A positioning mechanism is provided in the positioning groove 31 for preventing the abutting tube 30 from rotating relative to the mounting tube 27. The positioning mechanism includes a positioning toothed ring 32 which is slidably engaged in the positioning groove 31. The positioning toothed ring 32 is sleeved on the abutting tube 30, and the outer wall of the positioning toothed ring 32 is fitted with the inner wall of the positioning groove 31. A retaining ring 33 coaxial with the mounting tube 27 is bonded to the end of the positioning groove 31. The end face of the retaining ring 33 is flush with the end face of the mounting tube 27 and prevents the positioning toothed ring 32 from detaching from the positioning groove 31. A plurality of positioning springs 56 are fixed in the positioning groove 31 to push the positioning toothed ring 32 against the retaining ring 33. The outer wall of the abutment tube 30 is provided with a clearance groove 34 which is coaxial with the abutment tube 30, and a positioning gear 35 which is coaxial with the mounting tube 27 is sleeved on the clearance groove 34. The positioning gear 35 is bonded to the outer wall of the positioning groove 31. The length of the clearance groove 34 along the axial direction is much greater than the sum of the lengths of the positioning gear 35 and the positioning gear ring 32 in the axial direction. The end face of the positioning gear 35 is pressed against the inner wall of the clearance groove 34 near the end of the retaining ring 33. When the positioning gear ring 32 is engaged with the positioning gear 35, the abutment tube 30 is prevented from rotating relative to the mounting tube 27. When the positioning gear ring 32 is separated from the positioning gear 35, the positioning gear ring 32 is located in the clearance groove 34, and the abutment tube 30 is rotated to make the abutment tube 30 move axially during the rotation process, thereby adjusting the length of the abutment tube 30 extending out of the mounting groove 29.

[0049] Reference Figure 3 and Figure 4 The inner wall of the mounting tube 27 is provided with a telescopic groove 36 whose inner diameter is larger than that of the mounting groove 29. The telescopic groove 36 is located at the end of the mounting groove 29 away from the retaining ring 33. The thread on the abutment tube 30 is located at the end of the abutment tube 30 away from the positioning gear ring 32. The thread on the abutment tube 30 can extend into the telescopic groove 36, so that the abutment tube 30 can slide axially in the mounting groove 29. The positioning mechanism also includes a positioning component that separates the positioning gear ring 32 from the positioning gear 35. The positioning assembly includes a positioning plate 37 welded to the end of the abutment tube 30, the outer wall of the positioning plate 37 abuts against the inner wall of the retaining ring 33 and the end face of the positioning plate 37 abuts against the end face of the positioning gear ring 32, and a rubber pad 38 covering the positioning plate 37 is bonded to the end face of the positioning plate 37. When the positioning gear ring 32 abuts against the retaining ring 33, the positioning plate 37 abuts against the positioning gear ring 32, and one end of the abutment tube 30 with a thread is located in the telescopic groove 36, so that the abutment tube 30 can slide in the mounting tube 27. At this time, the surface of the rubber pad 38 away from the positioning plate 37 is flush with the end face of the mounting tube 27.

[0050] Reference Figure 4A movable groove 39 is provided on the bottom wall of the positioning groove 31 in the axial direction. A movable rod 40 is welded to the end surface of the positioning gear ring 32 away from the positioning plate 37. The movable rod 40 is an elastic rod and is parallel to the axis of the mounting tube 27. An end of the movable rod 40 away from the positioning gear ring 32 is integrally formed with a movable block 41 protruding in the direction away from the axis of the mounting tube 27. A positioning bolt 42 is threadedly connected to the mounting tube 27. The positioning bolt 42 is arranged radially along the mounting tube 27. A positioning protrusion 43 extending into the movable groove 39 is welded to the end of the positioning bolt 42. The positioning protrusion 43 is used to clamp the movable block 41 and separate the positioning gear ring 32 from the positioning gear 35.

[0051] The abutment tube 30 is pushed to move toward the installation groove 29, and one end of the abutment tube 30 with a thread moves in the telescopic groove 36. During the movement of the abutment tube 30 toward the installation groove 29, the positioning gear ring 32 is pushed to move into the positioning groove 31, so that the movable rod 40 connected to the positioning gear ring 32 moves toward the movable groove 39. During the movement of the movable rod 40 toward the movable groove 39, it abuts against the positioning protrusion 43 and produces a certain deformation. The movable rod 40 bends downward, so that the movable block 41 abuts on the end surface of the positioning protrusion 43 away from the positioning plate 37. At this time, the positioning gear ring 32 is separated from the positioning gear 35, pulling the abutment tube 30 to move toward the outside of the installation groove 29, so that the abutment tube 30 is threadedly connected in the installation groove 29, and the abutment tube 30 is rotated. The abutment tube 30 moves toward the outside of the installation groove 29 during the rotation, so that the rubber pad 38 abuts against the side wall of the hob 6. The distance between the two adjacent hobs 6 is adjusted by adjusting the extension amount of the abutment tube 30. When adjusting the position of the abutment tube 30 , the positioning bolt 42 is rotated to separate the positioning protrusion 43 from the movable block 41 , and the positioning gear ring 32 is meshed with the positioning gear 35 under the action of the positioning spring 56 , thereby preventing the abutment tube 30 from rotating relative to the mounting tube 27 .

[0052] Reference Figure 5 and Figure 6, the pressure-sensitive adhesive is cut into a number of mutually abutting pressure-sensitive adhesive strips, and the pressure-sensitive adhesive strips are divided into odd-numbered strips and even-numbered strips. The gluing device includes two positioning platforms 44, and the upper surfaces of the two positioning platforms 44 are provided with a number of guide grooves 45. The guide grooves 45 are arranged horizontally and penetrate the two side walls of the positioning platform 44 in the horizontal direction. The odd-numbered pressure-sensitive adhesive strips and the even-numbered pressure-sensitive adhesive strips pass through the corresponding guide grooves 45 of the positioning platform 44, respectively, so that the odd-numbered pressure-sensitive adhesive strips are separated from the even-numbered pressure-sensitive adhesive strips, and the possibility of the adjacent two pressure-sensitive adhesive strips being bonded together is reduced. The upper surface of the positioning platform 44 is fixed with a number of pressure plates 46 by bolts to prevent the pressure-sensitive adhesive strips from escaping from the guide grooves 45. The discharge end of the guide groove 45 is rotatably connected to a guide roller 47, which is perpendicular to the movement direction of the pressure-sensitive adhesive strip. The guide roller 47 is threadedly connected to two adjustment disks 48, and the pressure-sensitive adhesive strip is located between the two adjustment disks 48. The discharge end of the guide groove 45 separates the pressure-sensitive adhesive strip from the release paper, and the position of the pressure-sensitive adhesive strip is fine-tuned by rotating the two adjustment disks 48 to meet the next production process.

[0053] Reference Figure 1 and Figure 7 The gluing device also includes an extrusion mechanism for bonding the pressure-sensitive adhesive strip to the conductive foam. The extrusion mechanism includes a horizontally arranged fixed plate 49, a placement groove 50 is provided on the upper surface of the fixed plate 49, a movable plate 51 is placed in the placement groove 50, the movable plate 51 abuts against the inner wall of the placement groove 50 and protrudes from the upper surface of the fixed plate 49, so as to facilitate the positioning of the movable plate 51 on the fixed plate 49. A plurality of groups of limiting grooves 52 are provided on the upper surface of the movable plate 51, the plurality of limiting grooves 52 are arranged in a rectangular array, the connecting line of the same group of limiting grooves 52 is directly opposite to one of the pressure-sensitive adhesive strips, and the conductive foam is placed in the limiting groove 52. A vertically arranged extrusion cylinder 53 is bonded to the upper surface of the fixed plate 49, a horizontally arranged extrusion plate 54 is connected to the upper end of the extrusion cylinder 53, a plurality of extrusion rollers 55 are rotatably connected to the lower surface of the extrusion plate 54, the extrusion rollers 55 are perpendicular to the moving direction of the pressure-sensitive adhesive strip, and the same extrusion roller 55 is directly opposite to the limiting grooves 52 on different groups. The squeezing cylinder 53 drives the squeezing roller 55 to move downward, so that the pressure-sensitive adhesive strip is adhered to the corresponding conductive foam. The squeezing cylinder 53 moves upward, and the pressure-sensitive adhesive strip drives the conductive foam to move to a designated position, and then the next operation is performed.

[0054] The implementation principle of a multi-station circular knife machine wrapping conductive foam device in the embodiment of the present application is as follows: the pressure-sensitive adhesive passes through between the roller cutter 6 and the abutting roller 13, the driving motor 11 drives the installation roller 5 and the roller cutter 6 to rotate, and is cut into a pressure-sensitive adhesive strip under the action of the roller cutter 6. The pressure-sensitive adhesive strip passes through the corresponding guide groove 45, and is separated from the release paper at the discharge end of the guide groove 45. The pressure-sensitive adhesive strip moves to between the extrusion roller 55 and the conductive foam, and is driven downward by the extrusion cylinder 53 and adheres to the conductive foam. The extrusion cylinder 53 drives the extrusion roller 55 to move upward, so that the pressure-sensitive adhesive strip drives the conductive foam to move upward, and transfers the conductive foam to a designated position for the next step.

[0055] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A multi-station circular knife machine wrapping conductive foam device, characterized in that: The invention comprises, in sequence, a cutting device for cutting a pressure-sensitive adhesive with a release paper attached thereto into pressure-sensitive adhesive strips, and a gluing device for separating the release paper from the pressure-sensitive adhesive strips and bonding the pressure-sensitive adhesive to the conductive foam. The cutting device comprises a mounting platform (1), a bracket (2) is arranged on the upper surface of the mounting platform (1), a mounting roller (5) is arranged on the bracket (2), a driving motor (11) for driving the mounting roller (5) to rotate is provided on the bracket (2), a plurality of rollers (6) coaxial with the mounting roller (5) are fixed on the mounting roller (5), and an abutting roller (13) is rotatably connected to the bracket (2) and acts together with the roller (6) to cut the pressure-sensitive adhesive into a plurality of pressure-sensitive adhesive strips. The bracket (2) comprises two groups of guide rods (3) fixed on the upper surface of the mounting platform (1), the guide rods (3) are arranged vertically, the same group of guide rods (3) consists of two and are located on the same side of the mounting platform (1), the same group of guide rods (3) is provided with a sliding block (4) connected to another adjacent guide rod (3), the mounting roller (5) is detachably connected to the sliding block (4), a mounting block (12) connecting two adjacent guide rods (3) is provided below the sliding block (4), the abutment roller (13) is rotatably connected to the two mounting blocks (12), and the guide rods (3) in the same group are arranged between the two mounting blocks (12). A vertically arranged compression spring (14) is fixed on the upper surface of the mounting platform (1), the compression spring (14) is fixed to the lower end surface of the mounting block (12) and pushes the contact roller (13) to press against the roller (6), a positioning rod (16) connecting the two guide rods (3) is fixed on the upper end surface of the same group of guide rods (3), a positioning screw (17) vertically penetrating the positioning rod (16) and threadedly connected to the positioning rod (16) is provided on the positioning rod (16), and the lower end of the positioning screw (17) is rotatably connected to a positioning block (15) slidably clamped between the two guide rods (3); A vertically arranged mounting rod (20) is slidably arranged on the mounting platform (1) outside the same group of guide rods (3); a sliding groove (21) parallel to the movement direction of the pressure-sensitive adhesive is provided on the upper surface of the mounting platform (1); a sliding block (22) is fixed on the lower end surface of the mounting rod (20) and is slidably engaged in the sliding groove (21) and prevents the mounting rod (20) from moving upward; a driving cylinder (23) is fixed on the upper surface of the mounting platform (1) for pushing the mounting rod (20) to move toward the adjacent guide rod (3); a plurality of arc grooves (24) are provided on the opposite side walls of the guide rod (3) and the mounting rod (20); two opposite arc grooves (24) are connected to each other and form a cylindrical groove; a cleaning roller (25) is provided on the cylindrical groove, which is connected to the two cylindrical grooves and is parallel to the mounting roller (5); a fleece cloth (26) abutting against the roller (6) is fixed on the outer wall of the cleaning roller (25); The gluing device comprises two positioning platforms (44), the two positioning platforms (44) respectively corresponding to odd-numbered and even-numbered pressure-sensitive adhesive strips, the upper surface of the positioning platform (44) is provided with a plurality of guide grooves (45) which are parallel to each other and for the pressure-sensitive adhesive strips to pass through, the upper surface of the positioning platform (44) is fixed with a plurality of pressing plates (46) which prevent the pressure-sensitive adhesive strips from escaping from the guide grooves (45), the discharge end of the guide groove (45) is rotatably connected to a guide roller (47), the guide roller (47) is threadedly connected to two adjustment disks (48), the pressure-sensitive adhesive strip is located between the two adjustment disks (48), and the gluing device also comprises an extrusion mechanism for bonding the pressure-sensitive adhesive strips to the conductive foam; The extrusion mechanism comprises a fixed plate (49), the upper surface of the fixed plate (49) is provided with a placement groove (50), a movable plate (51) is placed in the placement groove (50), the upper surface of the movable plate (51) is provided with a plurality of limit grooves (52) corresponding to the pressure-sensitive adhesive strip and used for placing the conductive foam, the fixed plate (49) is connected to a vertically arranged extrusion cylinder (53), the extrusion cylinder (53) is connected to a horizontally arranged extrusion plate (54), and the extrusion plate (54) is rotatably connected to a plurality of extrusion rollers (55) for pushing the pressure-sensitive adhesive strip to adhere to the corresponding conductive foam.

2. A multi-station circular knife machine wrapping conductive foam device according to claim 1, characterized in that: A connecting bearing (7) connected to the rotating shaft of the installation roller (5) is fixed on one of the sliding blocks (4), and a connecting cylinder (8) coaxial with the connecting bearing (7) is connected to the other sliding block (4). The output shaft of the driving motor (11) is fixed on the connecting cylinder (8), and a connecting groove (9) is formed on the inner wall of the connecting cylinder (8). A connecting block (10) which is clamped in the connecting groove (9) and can rotate synchronously with the connecting cylinder (8) is fixed on the rotating shaft of the installation roller (5).

3. The conductive foam wrapping device of a multi-station circular knife machine according to claim 1 is characterized in that: The cutter roller (6) is sleeved on the mounting roller (5), a mounting cylinder (27) is sleeved on the mounting roller (5) between two adjacent cutter rollers (6), the side wall of the cutter roller (6) abuts against the corresponding mounting cylinder (27), and mounting rings (28) are threadedly connected at both ends of the mounting roller (5) to enable the mounting cylinder (27) to abut against the cutter roller (6).

4. A multi-station circular knife machine wrapping conductive foam device according to claim 3, characterized in that: The end surface of the mounting tube (27) is provided with a mounting groove (29) coaxial with the mounting tube (27); an abutment tube (30) sleeved on the mounting roller (5) is connected to the mounting groove (29) by a thread; a rubber pad (38) abutting against the side wall of the roller (6) is fixed to the end of the abutment tube (30); and a positioning mechanism is provided in the mounting tube (27) to prevent the abutment tube (30) from rotating relative to the mounting tube (27).

5. A multi-station circular knife machine wrapping conductive foam device according to claim 4, characterized in that: The end of the mounting tube (27) is provided with a positioning groove (31) coaxial with the mounting tube (27) along the axial direction, the positioning mechanism comprises a positioning toothed ring (32) slidably engaged in the positioning groove (31), the positioning toothed ring (32) is sleeved on the abutting tube (30), a retaining ring (33) is fixed in the positioning groove (31) to prevent the positioning toothed ring (32) from escaping from the positioning groove (31), the inner wall of the mounting tube (27) is provided with a telescopic groove (36) having an inner diameter larger than that of the mounting groove (29), the thread on the abutting tube (30) is located at the end of the abutting tube (30) away from the positioning toothed ring (32), and the thread on the abutting tube (30) can extend into the abutting tube (30). The telescopic groove (36) is provided with a plurality of positioning springs (56) for pushing the positioning toothed ring (32) to abut against the retaining ring (33). The outer wall of the abutting tube (30) is provided with a clearance groove (34) coaxial with the abutting tube (30). A positioning gear (35) sleeved on the outside of the abutting tube (30) is fixed in the clearance groove (34). The positioning toothed ring (32) is meshed with the positioning gear (35) and prevents the positioning gear (35) from rotating. The positioning mechanism also includes a positioning component arranged in the positioning groove (31) and separating the positioning toothed ring (32) from the positioning gear (35).

6. A multi-station circular knife machine wrapping conductive foam device according to claim 5, characterized in that: The positioning assembly comprises a positioning plate (37) fixed at the end of the abutment tube (30) and coaxial with the abutment tube (30); the positioning plate (37) abuts against the end surface of the positioning toothed ring (32) and can push the positioning toothed ring (32) to move toward the positioning groove (31); the rubber pad (38) is fixed on the positioning plate (37); a movable groove (39) is axially provided on the bottom wall of the positioning groove (31); and the end surface of the positioning toothed ring (32) away from the positioning plate (37) is provided with a movable groove (39). A movable rod (40) is fixed thereto. The movable rod (40) is an elastic rod and a movable block (41) is fixed to the end of the movable rod (40) away from the positioning gear ring (32). The mounting tube (27) is threadedly connected with a positioning bolt (42) in a radial direction. A positioning protrusion (43) extending into the movable groove (39) is fixed to the end of the positioning bolt (42). The positioning protrusion (43) is used to clamp the movable block (41) and separate the positioning gear ring (32) from the positioning gear (35).

Images