CN219213339U

CN219213339U - Tensioning device for mask belt cutting machine

Info

Publication number: CN219213339U
Application number: CN202320552874.2U
Authority: CN
Inventors: 吴家麟; 伍秀月
Original assignee: Jiangmen Ubis Semiconductor Materials Co ltd
Current assignee: Jiangmen Ubis Semiconductor Materials Co ltd
Priority date: 2023-03-18
Filing date: 2023-03-18
Publication date: 2023-06-20
Anticipated expiration: 2033-03-18

Abstract

The utility model relates to a mask area overspeed device tensioner for guillootine belongs to the technical field that electronic components lead frame electroplated, and it includes frame and drive roll, and the drive roll rotates to be connected in the frame, still installs a driving piece in the frame, and a driving piece is connected and drive the drive roll rotation with the drive roll, still rotates in the frame and installs the driven voller, is provided with tensioning assembly between drive roll and the driven voller, and tensioning assembly installs in the frame, still installs No. two driving pieces in the frame, and No. two driving pieces are connected with tensioning assembly, no. two driving pieces can drive tensioning assembly and promote mask area to the direction motion of keeping away from drive roll and driven voller. The present application has the effect of improving the cutter processing shear of mask strips over a larger diameter range.

Description

Tensioning device for mask belt cutting machine

Technical Field

The application relates to the field of electroplating of lead frames of electronic components, in particular to a tensioning device for a mask tape cutting machine.

Background

In the process of electroplating the lead frame, electroplating is needed to be performed on the upper surface of the electroplating lead frame, the electroplating lead frame is needed to be adhered to a mask belt during electroplating, one surface to be electroplated faces upwards, the mask belt is composed of a base material film and a silica gel layer, the silica gel layer is adhered to the base material film, and the whole shape of the mask belt is a circular ring belt shape. The electroplating lead frame is adhered to the surface of the silica gel layer. For the electroplating lead frames with different sizes, the width of the mask belt is required to be cut, and in order to ensure the cutting precision of the mask belt, the mask belt is required to be tensioned during cutting.

In the related art, a mask belt cutting machine is disclosed, which comprises a frame and a driving roller, wherein the driving roller is arranged on the frame, a motor for driving the driving roller to rotate is also arranged on the frame, a driven roller is slidably arranged on the frame, and the sliding direction is the direction close to and far away from the driving roller. The machine frame is also fixedly provided with an air cylinder, the air cylinder is connected with the driven roller and controls the driven roller to slide on the machine frame, the mask belt is sleeved on the driving roller and the driven roller, and the driven roller is controlled to move in a direction away from the driving roller through the air cylinder, so that the mask belt is tensioned.

For the related art in the above, there are the following drawbacks: the driven roller can only be adjusted and moved in a small range in the process of adjusting and tensioning, so that only mask strips with a certain diameter range can be processed, and only larger cutting machines can be replaced for some mask strips with larger diameters.

Disclosure of Invention

In order to improve the cutting of masking tape over a larger diameter range by a cutter, the present application provides a tensioner for a masking tape cutter.

The application provides a mask area overspeed device tensioner for guillootine adopts following technical scheme:

the utility model provides a mask area overspeed device tensioner for guillootine, includes frame and drive roll, the drive roll rotates to be connected in the frame, still install a driving piece in the frame, a driving piece is connected and drives the drive roll rotation with the drive roll still rotate in the frame and install the driven voller, be provided with tensioning assembly between drive roll and the driven voller, tensioning assembly installs in the frame, no. two driving pieces are still installed in the frame, no. two driving pieces are connected with tensioning assembly, no. two driving pieces can drive tensioning assembly and promote mask area to the direction motion of keeping away from drive roll and driven voller.

Through adopting above-mentioned technical scheme, mask area suit is between drive roll, driven voller and tensioning assembly, and the tensioning assembly is through No. two driving piece control with mask area to the direction motion of keeping away from drive roll and driven voller, mask area is tensioned and hugs closely between drive roll, driven voller and tensioning assembly. The first driving component drives the driving roller to rotate and drives the mask belt to rotate, and the tensioned mask belt can keep better position accuracy in the rotating process.

Optionally, tensioning assembly includes take-up pulley, pivot, drive gear and tensioning rack, no. two driving pieces and drive shaft connection and drive pivot rotation, drive gear fixed mounting is in the pivot, tensioning rack slidable mounting is in the frame, and gliding direction is being close to or keeps away from the direction of drive roll, tensioning rack and drive gear meshing, the take-up pulley rotate install in the one end that the drive gear was kept away from to the tensioning rack.

Through adopting above-mentioned technical scheme, no. two driving pieces drive pivot rotation, the pivot is rotatory the back and is fixed in epaxial drive gear of pivot and also rotates thereupon, drive gear drives tensioning rack and is being close to or keep away from the direction of driving roll and remove, the mask area is installed between take-up pulley, driving roll and driven voller, when tensioning rack moves to the direction of keeping away from the driving roll, take-up pulley promotes the mask area and tighten the mask area, thereby make things convenient for the tailorring of mask area, because the removal of tensioning rack, can control take-up pulley in the space remove, improve the tensioning scope of take-up pulley, and satisfy the clamping tensioning of different diameter scope mask area, thereby realize the function of a cutting machine processing mask area of multiple diameter model.

Optionally, the one end that the drive gear was kept away from to the tensioning rack has been seted up the spout, slidable mounting has the slider in the spout, the gliding direction of slider is being close to or keeps away from the direction of pivot, the take-up pulley rotates to be installed on the slider, install buffer spring between slider and the tensioning rack.

Through adopting above-mentioned technical scheme, take-up pulley can receive the compression when promoting mask area and descend, and the slider slides to the direction of pivot in the spout, avoids the take-up pulley to tear the mask area when tensioning the mask area through the compression of buffer spring, thereby also can apply resilience force to the better tensioning to the mask area in take-up pulley to the one side that keeps away from driving roll and driven voller simultaneously.

Optionally, the tensioning assembly further comprises an auxiliary wheel and a rack, the rack is slidably mounted on the frame, the sliding direction is the direction close to or far away from the driving roller, the rack is meshed with the driving gear, and the auxiliary wheel is rotatably connected to one end, close to the driving roller, of the rack.

Through adopting above-mentioned technical scheme, the rack is through meshing with the driving tooth, and the driving gear can drive the rack and remove to being close to or keeping away from one side of driving roll when rotatory, and the auxiliary wheel is contacted with the mask area and is pushed the mask area to keeping away from one side of driving roll when removing, through adding the auxiliary wheel, the mask area coils the dish that has increased the mask area on the auxiliary wheel to attach the route, thereby can carry out tensioning to the mask area of bigger diameter and tailor.

Optionally, tensioning assembly still includes No. two auxiliary wheels and No. two racks, no. two racks slidable mounting is in the frame, and gliding direction is being close to or keeps away from the direction of driven voller, no. two racks and drive gear engagement, no. two auxiliary wheels rotate the one end of being close to the driven voller on No. two racks of connection.

Through adopting above-mentioned technical scheme, no. two racks through with the driving tooth meshing, the driving gear can drive No. two racks when rotatory and remove to being close to or keeping away from one side of driving roll, no. two auxiliary wheel and mask area contact and with mask area promote to the one side of keeping away from the driven voller in the removal, through adding No. two auxiliary wheels, mask area coil has increased the dish route of mask area on No. two auxiliary wheels to can be further carry out tensioning to the mask area of bigger diameter and tailor.

Optionally, the second driving piece comprises a turntable, and the turntable is rotatably installed on the frame and fixedly connected with the rotating shaft.

Through adopting above-mentioned technical scheme, can drive the pivot rotatory thereby realize the tensioning function to the mask area through rotating the carousel.

Optionally, install the protection shield in the frame, a plurality of locking grooves have been seted up on the protection shield, sliding connection has the locking handle on the carousel, and the gliding direction is the direction that is close to or keeps away from the mounting panel, install reset spring between locking handle and the carousel, reset spring can push the locking handle into the locking inslot and realize the locking with the protection shield butt.

Through adopting above-mentioned technical scheme, drag the locking handle to the direction of keeping away from the protection shield, the locking handle releases the butt with the protection shield to leave the locking groove, reset spring is by further compression this moment, thereby accessible locking handle promotes the carousel and rotates the tensioning that realizes the mask area after the locking handle releases the butt with the protection shield. When the mask belt reaches a tensioning state, the locking handle is loosened, the locking handle is pushed into the locking groove under the action force of the reset spring, and the locking handle is abutted against the protection plate again, so that the locking of the tensioning device is realized, and the mask belt is always in the tensioning state in the cutting process.

Optionally, a bump is provided on one side of the locking handle near the turntable, a sinking groove is provided on the turntable near the locking handle, and the bump can be engaged with the sinking groove.

Through adopting above-mentioned technical scheme, when the locking handle kept away from the wedge and withdraw from the locking groove, the lug on the locking handle also left the heavy groove on the carousel simultaneously, and after the lug left the heavy groove completely, rotated an angle with the locking handle, the lug on the locking handle contacted with the carousel surface under reset spring's effort, the locking handle still was in the state of separating the locking groove this moment, can rotate the carousel. When tensioning is finished, the locking handle is reversely rotated, the lug enters the sinking groove under the action force of the reset spring, and meanwhile, the locking handle also enters the locking groove and is abutted with the wedge-shaped block, so that the locking of the turntable is realized. The lug is far away from the sinking groove and rotates to the surface of the rotary table, so that the rotary table can be conveniently locked when the rotary table rotates, and the locking handle is always in an unlocking state.

Drawings

Fig. 1 is a schematic view showing the overall structure of a tensioner for a mask belt cutter according to the present embodiment.

Fig. 2 is a schematic view showing a structure of a tensioner assembly for a mask belt cutter according to the present embodiment.

Fig. 3 is a schematic partial structure of a tensioning device for a mask belt cutter according to the present embodiment.

Fig. 4 is an enlarged view of a portion a in fig. 3.

Fig. 5 is a schematic structural view of the locking handle of the present embodiment.

Reference numerals illustrate: 1. a frame; 11. a protective plate; 111. a locking groove; 112. wedge blocks; 2. a drive roll; 21. a first driving member; 3. driven roller; 4. a tensioning assembly; 41. a tensioning wheel; 42. a rotating shaft; 43. a drive gear; 44. tensioning the rack; 441. a chute; 442. a slide block; 443. a buffer spring; 45. a first auxiliary wheel; 46. a first rack; 47. an auxiliary wheel II; 48. a second rack; 5. a second driving member; 51. a turntable; 52. a locking handle; 521. a bump; 53. a return spring; 54. sinking grooves; 6. a blade; 7. a mask belt.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-5.

The embodiment of the application discloses a tensioning device for a mask belt cutting machine. Referring to fig. 1 and 2, a tensioning device for a masking tape cutter includes a frame 1, a driving roller 2, a driven roller 3, a tensioning assembly 4, and a first driving member 21. The driving roller 2 is rotatably mounted on the frame 1, the driven roller 3 and the driving roller 2 are at the same horizontal plane and are also rotatably mounted on the frame 1, and a masking tape 7 is sleeved between the driving roller 2 and the driven roller 3. The first driving piece 21 is arranged on the frame 1 and is positioned on one side of the driving roller 2, the first driving piece 21 in the embodiment is a servo motor, the driving roller 2 is connected with the first driving piece 21, the driving roller 2 can be driven to rotate under the driving of the first driving piece 21, the tensioning assembly 4 is arranged between the driving roller 2 and the driven roller 3 on the frame 1, the second driving piece 5 is arranged on the tensioning assembly 4, the tensioning assembly 4 can be driven to move by the second driving piece 5, the mask belt 7 is pushed to move in a direction away from the driving roller 2 and the driven roller 3 after the tensioning assembly 4 moves, the mask belt 7 is stretched between the driving roller 2 and the driven roller 3, and the mask belt 7 with a larger diameter can be stretched by the moving stroke of the tensioning assembly 4, so that the mask belt 7 with a larger diameter can be effectively improved in the cutting machine processing and shearing of the mask belt 7 with a larger diameter range.

When the mask belt 7 is tightened, the first driving member 21 starts to drive the driving roller 2 to rotate and drive the whole mask belt 7 to move, so that the blade 6 can be operated to cut the mask belt 7.

Referring to fig. 2, the tensioning device includes a tensioning wheel 41, a rotating shaft 42, a driving gear 43 and a tensioning rack 44, wherein the driving gear 43 is fixedly mounted on the rotating shaft 42 in a welding manner, the rotating shaft 42 is rotatably mounted on the frame 1, the tensioning rack 44 is vertically arranged and is meshed with the driving gear 43, when the driving gear 43 rotates to drive the tensioning rack 44 to move in a vertical direction, a sliding groove 441 is formed in one end, far away from the rotating shaft 42, of the tensioning rack 44, a sliding block 442 is mounted in the sliding groove 441, the sliding block 442 can slide in the sliding groove 441, and the sliding direction of the sliding block 442 is a direction close to or far away from the rotating shaft 42.

Referring to fig. 2 and 3, the tension pulley 41 is rotatably mounted on the slider 442 by a bolt, and a buffer spring 443 is mounted between the slider 442 and the tension rack 44, and when the drive gear 43 drives the tension rack 44 to move in a direction away from the rotation shaft 42, the tension pulley 41 contacts the mask belt 7, and then pushes the mask belt 7 in a direction away from the drive roller 2 and the driven roller 3, and tightens the mask belt 7. During the depression, slider 442 is forced upward, where buffer spring 443 is compressed. The provision of the buffer springs 443 can effectively reduce the risk of damage to the mask belt 7 due to excessive stress during the straightening process.

The rack 1 is further provided with a first rack 46 and a second rack 48 in a sliding manner, the first rack 46 and the second rack 48 are horizontally arranged and meshed with the driving gear 43 at the same time, wherein the first rack 46 is arranged above the second rack 48, and when the driving gear 43 rotates, the first rack 46 and the second rack 48 can move in the same direction or in opposite directions at the same time. The first auxiliary wheel 45 is rotatably mounted at one end of the first rack 46 far away from the rotating shaft 42, the second auxiliary wheel 47 is rotatably mounted at one end of the second rack 48 far away from the rotating shaft 42, and when the mask belt 7 is mounted, the mask belt 7 is sleeved on one side of the first auxiliary wheel 45 and one side of the second auxiliary wheel 47 close to the rotating shaft 42.

When the rack is driven to rotate, the tensioning wheel 41 presses down and tightens the grinding belt, meanwhile, the first auxiliary wheel 45 and the second auxiliary wheel 47 also tighten the mask belt 7 to the side close to the rotating shaft 42, and the use of the first auxiliary wheel 45 and the second auxiliary wheel 47 further increases the range of the disc setting path of the mask belt 7, so that the function of cutting the mask belt 7 in a larger diameter range by cutting machining is further improved.

Referring to fig. 3 and 4, the second driving part 5 includes a turntable 51 fixedly connected to the rotation shaft 42 by bolts, and the turntable 51 is rotated to drive the rotation shaft 42 to rotate, thereby controlling the tension wheel 41, the first auxiliary wheel 45 and the second auxiliary wheel 47 to tension the mask belt 7. The locking handle is further rotatably arranged on the turntable 51, the turntable 51 can be conveniently operated to rotate through the locking handle, the protection plate 11 is arranged on one side, close to the turntable 51, of the frame 1, the locking handle penetrates through the turntable 51, the reset spring 53 is arranged between one end, close to the protection plate 11, of the locking handle and the turntable 51, and the reset spring 53 can be compressed to attach the locking handle to the turntable 51.

The protection plate 11 is also provided with a plurality of locking grooves 111, the whole locking grooves 111 are annularly arranged, one end of the locking handle, which is close to the protection plate 11, enters the locking grooves 111 to be abutted with the protection plate 11 under the action force of the return spring 53 so as to realize locking, and the turntable 51 can not rotate after locking. When the mask belt 7 needs to be tensioned, the locking handle 52 needs to be shifted to the side far away from the protection plate 11, and the turntable 51 can be rotated after the locking handle 52 leaves the locking groove 111, so that the mask belt 7 is tensioned. When the mask belt 7 reaches the tensioning force requirement, the rotation of the turntable 51 is stopped, the unlocking handle is sent, and the locking handle 52 is pushed into the corresponding locking groove 111 under the acting force of the reset spring 53 and abuts against the protection plate 11 to realize the locking of the turntable 51.

Referring to fig. 4 and 5, two protruding blocks 521 are further disposed on a side of the locking handle close to the turntable 51, a countersink 54 which is mutually inserted and matched with the protruding blocks 521 is disposed on the turntable 51, the protruding blocks 521 enter the countersink 54 to be engaged with the turntable 51 in a locked state, when the locking needs to be released, the locking handle is separated from the locking groove 111, meanwhile, the protruding blocks 521 are separated from the countersink 54, at this time, the locking handle can be rotated by 90 degrees, the protruding blocks 521 are abutted against the upper surface of the turntable 51, the locking handle is always in an unlocked state, and the sheared mask belt 7 is convenient to detach.

The implementation principle of the tensioning device for the mask belt cutting machine is as follows: the positions among the tension wheel 41, the first auxiliary wheel 45 and the second auxiliary wheel 47 are adjusted through rotating the rotary table 51, then the mask belt 7 is sleeved on the driving roller 2 and the driven roller 3, the locking handle 52 is pulled out of the locking groove 111 to rotate the rotary table 51, the driving gear 43 starts to rotate under the driving of the rotating shaft 42, the driving gear 43 drives the tensioning rack 44 to move in the direction away from the rotating shaft 42, the mask belt 7 is tensioned under the pushing of the tension wheel 41, meanwhile, the first rack 46 and the second rack 48 also move simultaneously, the first auxiliary wheel 45 and the second auxiliary wheel 47 tighten the mask belt 7 in the same direction, and finally the function of tightening the mask belt 7 is realized. After tightening, the locking handle is released, and the locking handle rebounds into the locking groove 111 on the protection plate 11 under the action of the return spring 53, so that the locking of the turntable 51 is realized, and at this time, the mask belt 7 is in a tightened state, and can be cut. After the cutting is completed, the locking handle is pulled out of the locking groove 111, and the reverse rotation dial 51 releases the tension of the mask belt 7, so that the mask belt 7 can be removed.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims

1. A tensioner for a masking tape cutter, characterized by: including frame (1) and drive roll (2), drive roll (2) rotate and connect on frame (1), still install drive piece (21) on frame (1), drive piece (21) are connected and drive roll (2) rotatory with drive roll (2) still rotate on frame (1) and install driven voller (3), be provided with tensioning assembly (4) between drive roll (2) and driven voller (3), tensioning assembly (4) are installed on frame (1), still install No. two drive pieces (5) on frame (1), no. two drive pieces (5) are connected with tensioning assembly (4), no. two drive pieces (5) can drive tensioning assembly (4) and promote mask area (7) to the direction motion of keeping away from drive roll (2) and driven voller (3).

2. A tensioner for a mask belt cutting machine as claimed in claim 1, wherein: tensioning assembly (4) are including take-up pulley (41), pivot (42), drive gear (43) and tensioning rack (44), no. two driving piece (5) are connected with the drive shaft and drive pivot (42) rotate, drive gear (43) fixed mounting is on pivot (42), tensioning rack (44) slidable mounting is on frame (1), and gliding direction is being close to or keeps away from the direction of driving roll (2), tensioning rack (44) and drive gear (43) meshing, take-up pulley (41) rotate install in one end that drive gear (43) was kept away from to tensioning rack (44).

3. A tensioner for a mask belt cutting machine as claimed in claim 2, wherein: the tensioning rack (44) is far away from one end of the driving gear (43) and provided with a sliding groove (441), a sliding block (442) is slidably installed in the sliding groove (441), the sliding direction of the sliding block (442) is a direction close to or far away from the rotating shaft (42), the tensioning wheel (41) is rotatably installed on the sliding block (442), and a buffer spring (443) is installed between the sliding block (442) and the tensioning rack (44).

4. A tensioner for a mask belt cutting machine as claimed in claim 2, wherein: the tensioning assembly (4) further comprises an auxiliary wheel (45) and a rack (46), the rack (46) is slidably mounted on the frame (1), the sliding direction is the direction close to or far away from the driving roller (2), the rack (46) is meshed with the driving gear (43), and the auxiliary wheel (45) is rotatably connected to one end, close to the driving roller (2), of the rack (46).

5. A tensioner for a masking tape cutter as claimed in claim 3, wherein: the tensioning assembly (4) further comprises a second auxiliary wheel (47) and a second rack (48), the second rack (48) is slidably mounted on the frame (1), the sliding direction is the direction close to or far away from the driven roller (3), the second rack (48) is meshed with the driving gear (43), and the second auxiliary wheel (47) is rotatably connected to one end, close to the driven roller (3), of the second rack (48).

6. A tensioner for a mask belt cutting machine as claimed in claim 2, wherein: the second driving piece (5) comprises a rotary table (51), and the rotary table (51) is rotatably arranged on the frame (1) and fixedly connected with the rotating shaft (42).

7. The tensioner of claim 6 for a masking tape cutter, wherein: install protection shield (11) on frame (1), a plurality of locking groove (111) have been seted up on protection shield (11), sliding connection has locking handle (52) on carousel (51), and gliding direction is the direction that is close to or keeps away from the mounting panel, install reset spring (53) between locking handle (52) and carousel (51), reset spring (53) can push into locking handle (52) in locking groove (111) and realize the locking with protection shield (11) butt.

8. The tensioner of claim 7 for a masking tape cutter, wherein: a lug (521) is arranged on one side, close to the rotary table (51), of the locking handle (52), a sinking groove (54) is arranged on the rotary table (51) close to the locking handle (52), and the lug (521) can be matched with the sinking groove (54).