CN216154222U - Film tearing winding rod - Google Patents

Abstract

The utility model relates to the technical field of film tearing jigs, and provides a film tearing roll rod which comprises a roll sleeve component for winding a protective film, a hollow central shaft arranged in the roll sleeve component and a film pressing mechanism; the film pressing mechanism comprises a pressing rod and a film pressing power piece for driving the pressing rod to press the protective film against the roll sleeve component; the film pressing power part is fixed in the central shaft, and the pressing rod comprises a pressing part and a driving part, wherein the pressing part is arranged outside the roll sleeve part and used for abutting against the protective film, and the driving part extends into the central shaft from the pressing part and is connected with the film pressing power part. Compared with the prior art, the film tearing winding rod is compact in structure and smaller in volume.

Description

Film tearing winding rod

Technical Field

The utility model relates to the technical field of film tearing jigs, in particular to a film tearing rolling rod.

Background

At present, in the production process of the PBC (printed circuit board), in order to protect the PBC from being polluted and oxidized by the external environment, a protective film needs to be attached to the surface of the PBC, and the PBC needs to be torn off before production. In the past, manual film tearing is adopted, however, the efficiency of the mode is too low, and the speed of automatic production cannot be met. And workers can damage the whole circuit board carelessly, uncontrollable factors are excessive, and then people invent the automatic film tearing machine, so that the production efficiency is greatly improved. The key of the film tearing machine in film tearing is the film tearing rolling rod, and the quality of the rolling rod determines the success or failure of film tearing and the quality of the film tearing.

SUMMERY OF THE UTILITY MODEL

One of the objects of the utility model is: the utility model provides a tear film rolling rod to the outside of the rolling rod that exists is equipped with the press mold structure among the solution prior art, and the structure is complicated, whole bulky technical problem.

In order to achieve the purpose, the utility model provides the following technical scheme: a film tearing roll rod comprises a roll sleeve component for winding a protective film, a hollow central shaft arranged in the roll sleeve component and a film pressing mechanism; the film pressing mechanism comprises a pressing rod and a film pressing power piece for driving the pressing rod to press the protective film against the roll sleeve component; the film pressing power part is fixed in the central shaft, and the pressing rod comprises a pressing part and a driving part, wherein the pressing part is arranged outside the roll sleeve part and used for abutting against the protective film, and the driving part extends into the central shaft from the pressing part and is connected with the film pressing power part.

The technical scheme of the utility model has the following advantages: the film tearing rolling rod comprises a rolling sleeve component, a central shaft and a film pressing mechanism; the film pressing mechanism comprises a pressing rod and a film pressing power piece; the film pressing power part is fixed in the center pin, the depression bar is including setting up the nip portion that sets up outside rolling up the cover part and be used for offsetting with the protection film and extending to the center pin in and the drive division of being connected with film pressing power part from the nip portion, like this, usable film pressing power part makes the drive division drive nip portion motion to compress tightly the protection film on rolling up the cover part through the depression bar, rotatory film tearing rolling rod is in order to tear the protection film from the circuit board again, and like this, this film tearing rolling rod compact structure, the volume is littleer.

In one embodiment, the winding sleeve component is provided with a rod through hole for the driving part to pass through, and the central shaft is provided with a rod through hole which corresponds to the rod through hole and through which the driving part passes.

In one embodiment, the film pressing mechanism further comprises a film pressing mounting block, the film pressing mounting block is fixedly mounted in the central shaft, and the film pressing power piece is fixed on the film pressing mounting block.

In one embodiment, the driving part is rotatably connected with the film pressing mounting block and is connected with the film pressing power part through a bidirectional joint; one end of the bidirectional joint is hinged with the driving part, and the other end of the bidirectional joint is hinged with an output shaft of the film pressing power part.

In one embodiment, the squeeze film power member is a cylinder.

In one embodiment, the output shaft of the lamination power member has a circular cross section, and the axis of the output shaft of the lamination power member is parallel to the axis of the central shaft.

In one embodiment, the central shaft has a first end and a second end opposite the first end for connection to an external device; the pressing part of the pressing rod extends from the driving part to the first end of the central shaft.

In one embodiment, the output shaft of the film pressing power piece extends out from the cylinder body of the film pressing power piece to the first end of the central shaft and is connected with the driving part of the pressing rod.

In one embodiment, a tapered plug is attached to the first end of the central shaft to close the opening at the first end.

In one embodiment, the second end of the central shaft is provided with a fixed expansion sleeve.

Drawings

Fig. 1 is a schematic perspective view of a film tearing roll and a circuit board according to an embodiment of the present invention;

FIG. 2 is a schematic perspective view of a film tearing roll bar provided by an embodiment of the present invention;

FIG. 3 is a cross-sectional view taken along the line A-A in FIG. 2;

FIG. 4 is an exploded view of a tear tape roll provided by an embodiment of the present invention;

fig. 5 is an enlarged view of a portion B in fig. 4.

Description of the main element symbols:

100-film tearing and rolling rod; 10-a central axis; 11-a first end; 12-a second end; 13-through rod via hole; 20-a winding means; 21-a tile member; 21 a-fixed end; 21 b-free end; 22-a rod through hole; 30-a bracing mechanism; 31-an operating member; 31 a-open position; 31 b-collapsed position; 311-a fixed part; 312-an operating part; 313-a fixation hole; 32-bracing the driving member; 33-a connecting assembly; 331-link; 332-a first connection mount; 34-an annular hinge seat; 341-a hinge; 342-a second connection seat; 40-a film pressing mechanism; 41-a pressure bar; 411-a press fit; 412-a drive section; 42-film pressing power parts; 43-a lamination mounting block; 44-a bi-directional joint; 50-fixing the expansion sleeve; 60-tapered plugs; 200-a circuit board; 300-protective film.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the utility model without any inventive step, are within the scope of protection of the utility model.

In order to make the technical solutions of the present invention better understood by those skilled in the art, the following detailed description of the implementations of the present invention is provided with reference to the accompanying drawings.

For convenience of description, the terms "front" and "rear" are used hereinafter to refer to the axial direction of the film tearing roll, wherein the end of the shaft for detaching the protective film is the front end of the film tearing roll, and the end for connecting with an external device is the rear end, but the structure of the utility model is not limited thereto.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the description and claims of the present application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one.

As shown in fig. 1 to 5, the film tearing roll bar 100 provided by the present embodiment includes a roll cover member 20 for winding a protective film 300, a hollow central shaft 10 disposed in the roll cover member 20, and a film pressing mechanism 40; the film pressing mechanism 40 comprises a pressing rod 41 and a film pressing power piece 42 for driving the pressing rod 41 to press downwards so as to press the protective film 300 against the roll cover component 20; the lamination power member 42 is fixed in the central shaft 10, and the pressing rod 41 includes a pressing portion 411 disposed outside the rolling cover member 20 and used for abutting against the protective film 300, and a driving portion 412 extending from the pressing portion 411 into the central shaft 10 and connected with the lamination power member 42.

The film tearing rolling rod 100 comprises a rolling sleeve component 20, a central shaft 10 and a film pressing mechanism 40; the film pressing mechanism 40 comprises a pressing rod 41 and a film pressing power piece 42; the film pressing power component 42 is fixed in the central shaft 10, the pressing rod 41 comprises a pressing part 411 which is arranged outside the roll sleeve component 20 and used for abutting against the protective film 300 and a driving part 412 which extends from the pressing part 411 to the central shaft 10 and is connected with the film pressing power component 42, so that the driving part 412 can drive the pressing part 411 to move by using the film pressing power component 42, the protective film 300 is pressed on the roll sleeve component 20 through the pressing rod 41, and the film tearing roll rod 100 is rotated to tear the protective film 300 away from the circuit board 200, so that the film tearing roll rod 100 is compact in structure and smaller in size.

Referring to fig. 1 to 5, the present embodiment provides a film tearing roll bar 100, which includes a central shaft 10, a roll cover member 20, a stretching mechanism 30 and a film pressing mechanism 40.

Referring to fig. 1 to 5, in the present embodiment, the central shaft 10 is a hollow structure, the winding member 20, the stretching mechanism 30 and the film pressing mechanism 40 are all mounted on the central shaft 10 and supported by the central shaft 10, the central shaft 10 has a first end 11 (i.e. a front end, hereinafter referred to as the first end 11 for technical terms in general) and a second end 12 (i.e. a rear end, hereinafter referred to as the second end 12 for technical terms in general) opposite to the first end 11, and the second end 12 of the central shaft 10 is used for connecting an external device (e.g. a driving mechanism of a film tearing machine not shown in the drawings).

Referring to fig. 1 to 5, in the present embodiment, the second end 12 of the central shaft 10 is provided with a fixed expansion sleeve 50, and it can be understood that the film tearing roll rod 100 is detachably connected to a driving mechanism (not shown) of the film tearing machine through the fixed expansion sleeve 50, so that the film tearing roll rod 100 is rotated around the axis of the central shaft 10 under the driving of the driving mechanism.

Referring to fig. 1 to 5, a winding member 20 for winding a protective film 300 around the winding member 20, and a central shaft 10 is disposed inside the winding member 20. The winding member 20 includes a plurality of tile members 21 disposed outside the center shaft 10 and arranged along the circumferential direction of the center shaft 10, and the plurality of tile members 21 are radially distributed around the axis of the center shaft 10. Each tile member 21 includes a fixed end 21a and a free end 21b, and the fixed ends 21a of the tile members 21 are rotatably connected to the central shaft 10, respectively. It can be understood that, the film tearing roll bar 100 is moved to above the protective film 300, the corner of the protective film 300 tilted away from the circuit board 200 is pressed on the roll cover component 20 by the film pressing mechanism 40, and the protective film 300 is torn away from the circuit board 200 and wrapped on the roll cover component 20 by the rotation of the film tearing roll bar 100.

Referring to fig. 1 to 5, in the present embodiment, the number of the tile members 21 is, but not limited to, four, the four tile members 21 have equal lengths and widths, the four tile members 21 are arranged at equal intervals, and the inner wall and the outer wall of each tile member 21 are, but not limited to, circular arc-shaped curved surfaces. The tile members 21 of the rolling cover member 20 are switchable between a collapsed state and an expanded state as each tile member 21 rotates about the fixed end 21a relative to the central shaft 10. It will be readily appreciated that when the tile members 21 are in the collapsed condition, the free ends 21b of the tile members 21 are at a minimum axial distance from the central shaft 10; when the tile member 21 is in the expanded state, the free end 21b of the tile member 21 is at the largest distance from the axis of the central shaft 10, so that the shape of the rolling sleeve component 20 is changed by switching the folded state and the expanded state of the rolling sleeve component 20, thereby facilitating the detachment of the protective film 300.

Fig. 3 is a schematic view of the tear film roll bar 100 according to the present embodiment in a state where the tile members 21 are spread apart.

As can be seen from fig. 3, in the present embodiment, the free end 21b of the tile member 21 is adjacent to the first end 11 of the central shaft 10, the fixed end 21a of the tile member 21 is adjacent to the second end 12 of the central shaft 10, and in the expanded state, the distance from the fixed end 21a to the axis of the central shaft 10 on each tile member 21 is substantially equal to the distance from the free end 21b to the axis of the central shaft 10 (or the distance from the fixed end 21a to the axis of the central shaft 10 on each tile member 21 is equal to the distance from the free end 21b to the axis of the central shaft 10), so that the rolling cover component 20 is substantially cylindrical.

In the present embodiment, when the winding member 20 is folded on the central shaft 10, the free end 21b adjacent to the first end 11 swings inward (in the axial direction of the central shaft 10). In the closed position 31b, the distance between the free end 21b of the tile member 21 and the axis of the central shaft 10 is less than the distance between the fixed end 21a and the axis of the central shaft 10, and the rolling and sleeving part 20 is approximately in the shape of a cone with a radius tapering from the second end 12 to the first end 11. It should be noted that, before the film is torn, the roll cover member 20 is adjusted to the open state, and after the protective film 300 is held and rotated by the film tearing roll rod 100, the protective film 300 is wound thereon; after the protection film 300 is torn off the circuit board 200, the rolling sleeve component 20 is adjusted to a folded state, so that the tear film rolling rod 100 is in a shape with a thin front part and a thick rear part (the outer diameter dimension near the first end 11 is smaller than the outer diameter dimension near the second end 12), and at this time, the protection film 300 can be torn out from the free end 21b of the tile member 21 by other mechanisms.

In particular, the width of each tile member 21 decreases from the fixed end 21a to the free end 21b, such that in the collapsed state, each tile member 21 is collapsed outside the central shaft 10 and adjacent tile members 21 can be closely connected.

In other embodiments, the fixed end 21a of the tile member 21 may be disposed proximate the first end 11 of the central shaft 10 and the free end 21b disposed proximate the second end 12, the free end 21b being flared outwardly prior to tearing the film; when the protective film 300 is torn off the circuit board 200, the free end 21b is folded inward, and the wound protective film 300 can be released from the fixed end 21 a.

Referring to fig. 1 to 5, the bracing mechanism 30 of the present embodiment includes an operating member 31 that is movable between an open position 31a (shown in fig. 3) and a closed position 31b along the axial direction of the center shaft 10 and is capable of adjusting the angle between the tile members 21 and the center shaft 10 during the movement, and the operating member 31 is connected to each tile member 21. When the operating member 31 moves to the folded position 31b, the tile members 21 of the rolling cover component 20 are in the folded state, and the distance between the free ends 21b of the tile members 21 and the axis of the central shaft 10 is smaller than the distance between the fixed ends 21a and the axis of the central shaft 10; when the operating member 31 is moved to the open position 31a, the tile member 21 of the rolling and sleeving part 20 is in the expanded state, and the distance between the free end 21b of the tile member 21 and the axis of the central shaft 10 is substantially equal to the distance between the fixed end 21a and the axis of the central shaft 10.

Referring to fig. 1 to 5, the propping mechanism 30 of the present embodiment further includes a propping driving member 32 for driving the operating member 31 to move along the axial direction of the central shaft 10, in the present embodiment, the propping driving member 32 is, but not limited to, an air cylinder, and the operating member 31 moves along the axial direction of the central shaft 10 and drives the tile member 21 to rotate around the connection between the tile member 21 and the central shaft 10 along the radial direction of the central shaft 10 relative to the central shaft 10 when driven by the propping driving member 32.

Referring to fig. 1 to 5, in the present embodiment, the bracing driving member 32 is fixedly mounted in the central shaft 10 by a fastener such as a screw or a pin, an output shaft of the bracing driving member 32 is coaxially disposed with the central shaft 10, and the operating member 31 is disposed in the central shaft 10 and mounted on the output shaft of the bracing driving member 32.

In other embodiments, the bracing drive 32 may be external to the central shaft 10.

Referring to fig. 1 to 5, the operating element 31 of the present embodiment includes a fixing portion 311 and an operating portion 312, in the present embodiment, the fixing portion 311 has a fixing hole 313 for placing the output shaft of the driving member 32, and the output shaft of the driving member 32 is fixedly connected to the fixing hole 313 of the fixing portion 311; the number of the operation portions 312 is, but not limited to, four operation portions 312 radially extend from the fixing portion 311, the four operation portions 312 correspond to the four tile members 21 one by one, and each operation portion 312 is connected to the corresponding tile member 21 by the connecting member 33.

Referring to fig. 1 to 5, in the present embodiment, the connection assembly 33 includes a connection rod 331 and a first connection seat 332, the first connection seat 332 is fixedly connected to the inner surface of the tile member 21 by a fastener such as a screw or a pin, one end of the connection rod 331 is hinged to the first connection seat 332, and the other end is hinged to the operation portion 312.

With continued reference to fig. 3, the output shaft of the driving member 32 is located at the outermost position in the cylinder, and when the output shaft moves toward the second end 12 of the central shaft 10, the pulling operation member 31 moves toward the second end 12 along the axial direction of the central shaft 10, and the free end 21b of the pulling tile member 21 is driven by the connecting rod 331 to move toward the central shaft 10.

Referring to fig. 1 to 5, in the present embodiment, an annular hinge seat 34 is disposed outside the central shaft 10, and the annular hinge seat 34 is sleeved on the central shaft 10 and is fixedly connected to the central shaft 10 by a fastener; the annular hinge seat 34 is provided with hinge portions 341, the number of the hinge portions 341 is, but not limited to, four hinge portions 341 are arranged at intervals along the circumferential direction of the annular hinge seat 34 and respectively correspond to four tile members 21 one by one, each tile member 21 is respectively connected with the corresponding hinge portion 341 through one second connecting seat 342, and the second connecting seat 342 is hinged to the hinge portions 341 and is fixedly connected with the inner surface of the tile member 21 through a fastener.

Referring to fig. 1 to 5, a tapered plug 60 is connected to the first end 11 of the central shaft 10 to close the opening of the first end 11, and the tapered plug 60 is embedded and fixed on the central shaft 10.

Referring to fig. 1 to 5, a film pressing mechanism 40 is provided on the center shaft 10 and serves to press the protective film 300 against the outer wall of the tile member 21. In the present embodiment, the squeeze film mechanism 40 includes a pressing rod 41 and a squeeze film power member 42, and the squeeze film power member 42 is, but not limited to, an air cylinder. The pressing rod 41 comprises a pressing part 411 which is arranged outside the roll cover component 20 and is used for abutting against the protective film 300, and a driving part 412 which extends from the pressing part 411 to the inside of the central shaft 10 and is connected with the film pressing power piece 42. The film pressing power piece 42 is fixed in the central shaft 10, and the film pressing power piece 42 can drive the pressing rod 41 to press downwards to press the protective film 300 against the outer wall of the tile member 21 of the rolling sleeve component 20.

Referring to fig. 1 to 5, in the present embodiment, the tile member 21 of the rolling and sleeving member 20 is provided with a rod penetrating hole 22 for the driving portion 412 to pass through, the central shaft 10 is provided with a rod penetrating hole 13 corresponding to the rod penetrating hole 22 and for the driving portion 412 to pass through, and the pressing portion 411 of the pressing rod 41 extends from the driving portion 412 to the first end 11 of the central shaft 10.

Referring to fig. 1 to 5, in the present embodiment, the squeeze film mechanism 40 further includes a squeeze film mounting block 43, fasteners such as screws and pins of the squeeze film mounting block 43 are fixedly mounted in the central shaft 10, fasteners such as screws and pins of the squeeze film power member 42 are fixed on the squeeze film mounting block 43, and the pressing rod 41 is connected to the squeeze film power member 42 and the squeeze film mounting block 43, respectively.

Referring to fig. 1 to 5, in the present embodiment, the driving part 412 is rotatably connected to the squeeze film mounting block 43, and the driving part 412 is connected to the squeeze film power member 42 through the bidirectional joint 44; one end of the bidirectional joint 44 is hinged with the driving part 412, and the other end is hinged with the output shaft of the film pressing power piece 42. It is easy to understand that when the output shaft of the film pressing power member 42 moves along the axial direction of the central shaft 10, the two-way joint 44 can drive the pressing rod 41 to rotate around the connection position of the pressing rod 41 and the film pressing mounting block 43, so as to realize the pressing and lifting actions of the pressing part 411 of the pressing rod 41.

Referring to fig. 1 to 5, in the present embodiment, the output shaft of the squeeze film power member 42 extends from the cylinder body of the squeeze film power member 42 toward the first end 11 of the central shaft 10, and is connected to the driving portion 412 of the pressing rod 41.

In other embodiments, the plunger 41 may be disposed between the lamination power member 42 and the second end 12.

With continued reference to fig. 3, in the present embodiment, the output shaft of the squeeze film power member 42 has a circular cross section, and the axis of the output shaft of the squeeze film power member 42 is parallel to the axis of the central shaft 10. The output shaft of the film pressing power member 42 is located at the innermost position in the cylinder body, when the output shaft moves towards the first end 11 of the central shaft 10, the bidirectional joint 44 is pushed to move towards the first end 11 along the axial direction of the central shaft 10, and the bidirectional joint 44 pushes the pressing rod 41 to perform an overturning motion towards the first end 11 of the central shaft 10 around the joint of the pressing rod 41 and the film pressing mounting block 43, so that the protective film 300 is pressed on the winding and sleeving part 20.

Referring to fig. 1 to 5, the film tearing machine provided in this embodiment includes the film tearing roll bar 100, and the film tearing roll bar 100 is detachably mounted on a driving mechanism (not shown) of the film tearing machine and driven by the driving mechanism to rotate around the axis of the central shaft 10.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents or improvements made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (10)

1. The film tearing roll rod is characterized by comprising a roll sleeve component for winding a protective film, a hollow central shaft arranged in the roll sleeve component and a film pressing mechanism; the film pressing mechanism comprises a pressing rod and a film pressing power piece for driving the pressing rod to press the protective film against the winding and sleeving part; the film pressing power part is fixed in the central shaft, and the pressing rod comprises a pressing part and a driving part, wherein the pressing part is arranged outside the roll sleeve part and used for abutting against the protective film, and the driving part extends to the central shaft from the pressing part and is connected with the film pressing power part.

2. The film tearing roll rod according to claim 1, wherein the roll sleeve component is provided with a through rod hole for the driving part to pass through, and the central shaft is provided with a through rod hole corresponding to the through rod hole and for the driving part to pass through.

3. The film tearing roll bar according to claim 2, wherein the film pressing mechanism further comprises a film pressing mounting block, the film pressing mounting block is fixedly mounted in the central shaft, and the film pressing power member is fixed on the film pressing mounting block.

4. The film tearing roll bar according to claim 3, wherein the driving part is rotatably connected to the film pressing mounting block, and the driving part is connected with the film pressing power part through a bidirectional joint; one end of the bidirectional joint is hinged with the driving part, and the other end of the bidirectional joint is hinged with an output shaft of the film pressing power part.

5. The film tearing roll bar according to claim 1, wherein the film pressing power member is an air cylinder.

6. The film tearing roll bar according to claim 5, wherein the output shaft of the film pressing power member has a circular cross section, and the axis of the output shaft of the film pressing power member is parallel to the axis of the central shaft.

7. The tear tape roll of any one of claims 1 to 6, wherein said central shaft has a first end and a second end opposite said first end for connection to an external device; the pressing portion of the pressing rod extends from the driving portion to the first end of the central shaft.

8. The film tearing roll bar according to claim 7, wherein the output shaft of the film pressing power piece extends from the cylinder body of the film pressing power piece to the first end of the central shaft and is connected with the driving part of the pressing bar.

9. The tear tape roll of claim 7, wherein a tapered plug is attached to the first end of the central shaft to close the opening of the first end.

10. The film tearing roll bar of claim 7, wherein the second end of the central shaft is provided with a fixed expansion sleeve.

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