ZB48A small box oil seal paper stay wire horseshoe cutter assembly and cutting device

Abstract

The utility model discloses a ZB48A small box oil seal paper stay wire horseshoe knife assembly and a cutting device, the cutting device comprises a knife pillow and a horseshoe knife assembly, the horseshoe knife assembly comprises a horseshoe knife installation shaft, a knife holder and a horseshoe knife, the horseshoe knife installation shaft comprises a transmission shaft and a knife holder installation shaft, one end of the transmission shaft penetrates through an equipment back plate, and the other end of the transmission shaft is connected with the knife holder installation shaft. The motor is connected with an equipment power source through a gear; the tool apron mounting shaft is connected with the transmission shaft through the coupler, and the tool apron is mounted on the tool apron mounting shaft; the knife holder is T-shaped, the horseshoe knife is inserted into the knife holder and fixed through the mounting screw, and the mounting screw is perpendicular to the axis direction of the knife holder mounting shaft and fixes the horseshoe knife from the side face of the knife holder. A horseshoe cutter holder mounting shaft is designed to be in a mode that two shafts are connected through a coupler, and the speed of a conventional horseshoe cutter can be adjusted under the condition that a rear cover plate of a machine body is not opened; moreover, the horseshoe knife can be taken out for replacement under the condition that the knife holder is not detached by adjusting the mounting screw of the horseshoe knife.

Description

Technical Field

[0001] The utility model relates to the technical field of cigarette packaging machines, in particular to a ZB48A small box oil seal paper drawing horseshoe knife assembly and a cutting device. Background Art

[0002] like Figure 1 As shown, the wire-drawing cutting device generally consists of a horseshoe knife and a bolster. The bolster is mounted on the lower paper passage door 1, with the horseshoe knife located below. After the small box's transparent paper meets the wire, the wire adheres to the transparent paper. As the paper continues to flow downward through the wire-drawing cutting device, the rotating horseshoe knife and the fixed bolster 13 cooperate to extrusion-cut the oil-sealing paper and the wire attached to it.

[0003] like Figure 2 As shown, the horseshoe knife part consists of a horseshoe knife mounting shaft 7A, a knife seat 73A and a horseshoe knife 8. The horseshoe knife mounting shaft 7B is mounted on the equipment back plate 15 through a bearing and is connected to the equipment power source through a gear. The knife seat 73A is fixed to the horseshoe knife mounting shaft 7A by bolts. The stop screw 82 of the horseshoe knife 8 is installed parallel to the axis direction of the horseshoe knife mounting shaft 7B. When the horseshoe knife 8 needs to be replaced, the knife seat 73B needs to be completely removed before the stop screw 82 fixing the horseshoe knife 8 can be loosened. The replacement is inconvenient and time-consuming. In addition, when the speed of the horseshoe knife 8 needs to be adjusted, the rear cover of the machine body needs to be opened and the key 83 on the gear of the horseshoe knife mounting shaft 7B needs to be loosened before the adjustment can be made. As a result, the adjustment is time-consuming and the steps are complicated. Utility Model Content

[0004] In view of the above problems, the utility model provides a ZB48A small box oil seal paper wire horseshoe knife assembly and a cutting device, which can improve the efficiency of disassembly and assembly of the cutting device components.

[0005] According to a first aspect, the utility model provides a ZB48A small box oil seal paper wire horseshoe knife assembly, comprising a horseshoe knife mounting shaft, a knife seat and a horseshoe knife. The horseshoe knife mounting shaft comprises:

[0006] A transmission shaft, one end of which passes through the back plate of the device and is connected to the power source of the device through a gear;

[0007] A tool holder mounting shaft is connected to the transmission shaft via a coupling, and the tool holder is mounted on the tool holder mounting shaft;

[0008] The knife seat is T-shaped, the horseshoe knife is inserted into the knife seat and fixed by a mounting screw, and the mounting screw is perpendicular to the axis direction of the knife seat mounting shaft and fixes the horseshoe knife from the side of the knife seat.

[0009] Furthermore, the coupling comprises:

[0010] A first connecting portion is fixedly arranged at one end of the transmission shaft close to the tool holder mounting shaft;

[0011] The second connection portion is fixedly provided on one end of the tool holder mounting shaft close to the transmission shaft. The second connection portion is configured to rotate axially around the transmission shaft so that the circumferential position of the tool holder on the tool holder mounting shaft is adjustable.

[0012] Furthermore, the second connecting portion is provided with an arc-shaped hole, and the bolt passes through the arc-shaped hole and is connected to the first connecting portion.

[0013] According to the second aspect, the utility model also provides a ZB48A small box oil seal paper wire cutting device, comprising: a knife pillow and the horseshoe knife assembly as described above.

[0014] Furthermore, the bolster comprises:

[0015] A bolster support and a guide wheel provided on the bolster support, wherein the bolster support is mounted on the lower paper passage door via a bolster mounting shaft, the bolster support being assembled from an upper support and a lower support, which are clamped together on the bolster mounting shaft after assembly;

[0016] The lower support is connected to the guide wheel through a bracket, and the bracket is configured to rotate up and down. An elastic member is provided between the bracket and the lower support, and when the bracket rotates upward, the elastic member is compressed.

[0017] Furthermore, the guide wheel is mounted on one end of the bracket close to the horseshoe knife through an eccentric shaft.

[0018] Furthermore, a bearing is provided inside the guide wheel, and washers are provided on both sides, and the diameter of the washers is larger than the diameter of the guide wheel;

[0019] A boss is provided on one side of the gasket close to the bearing, and the boss presses against the inner ring of the bearing.

[0020] Furthermore, a limit block is provided at the bottom of the lower support, and the limit block is used to limit the lowest position of the bracket to rotate downward.

[0021] Furthermore, a limiting groove is provided at the bottom of the bracket, and the limiting block is adapted to the limiting groove.

[0022] Furthermore, a positioning ring is provided on the bolster mounting shaft, and the positioning ring is used to determine the axial position of the bolster support.

[0023] Compared with the prior art, the working principle and beneficial effects of this utility model are as follows:

[0024] (1) The horseshoe knife assembly provided by the present invention is designed such that the mounting shaft of the horseshoe knife holder is connected by two shafts through a coupling, so that the speed of the horseshoe knife can be adjusted conventionally without opening the rear cover of the machine body; and, by adjusting the mounting screw of the horseshoe knife, the horseshoe knife can be taken out for replacement without disassembling the knife holder.

[0025] (2) The cutting device provided by the present invention is simple and quick to assemble and disassemble, and the wearing parts can be directly disassembled and replaced in just a few simple steps.

[0026] (3) The precision of the cutting device is guaranteed. Once adjusted, it can be used for a long time without repeated adjustment, and its reliability is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 Schematic diagram of the existing paper unloading channel door operation;

[0028] Figure 2 It is a structural diagram of an existing horseshoe knife assembly;

[0029] Figure 3 Schematic diagram of the structure of the wire cutting device in Example 1;

[0030] Figure 4 This is a schematic structural diagram of the bolster in Example 1;

[0031] Figure 5 This is an exploded view of the bolster in Example 1;

[0032] Figure 6 This is a schematic diagram of the operating principle of the bolster in Example 1;

[0033] Figure 7 Schematic diagram of the structure of the horseshoe knife assembly in Example 1;

[0034] Figure 8 This is an exploded view of the horseshoe knife assembly in Example 1.

[0035] Reference numerals:

[0036] 1-lower paper channel door; 12-cover plate; 13-knife pillow; 14-knife pillow mounting shaft; 15-back plate; 2-knife pillow support; 21-upper support; 22-lower support; 3-bracket; 31-limiting groove; 32-limiting block; 4-guide wheel; 41-eccentric shaft; 42-gasket; 5-spring; 51-first stop screw; 52-second stop screw; 6-locating ring; 7-horseshoe knife mounting shaft; 71-transmission shaft; 72-knife holder mounting shaft; 73-knife holder; 74-coupling; 741-first connecting part; 742-second connecting part; 75-arc-shaped hole; 8-horseshoe knife; 81-mounting screw; 82-stop screw; 83-key; 84-plug; 9-pull wire. DETAILED DESCRIPTION

[0037] The present invention will be further described in detail below through specific implementations in conjunction with the accompanying drawings.

[0038] Example 1

[0039] like Figure 2 As shown, this embodiment provides a ZB48A small box oil seal paper wire cutting device, including: a knife pillow part and a horseshoe knife part. The rotating horseshoe knife part and the fixed knife pillow part cooperate to complete the extrusion cutting of the small box oil seal paper and the wire pasted thereon.

[0040] Among them, such as Figure 3-4 As shown, the bolster portion is mounted on the lower paper passage door 11. The bolster portion includes: a bolster support 2 and a guide wheel 4 provided on the bolster support 2. The bolster support 2 is provided on the bolster mounting shaft 14 and consists of an upper support 21 and a lower support 22. The upper support 21 and the lower support 22 are connected by a clamping screw. After the two are assembled, they clamp the bolster mounting shaft 14. By removing the clamping screw, the upper support 21 and the lower support 22 can be separated and then removed from the bolster mounting shaft 14. This effectively avoids the problem of needing to remove the cover plate 12 and the bolster mounting shaft 14 when disassembling the existing bolster portion, greatly improving the efficiency of disassembling the bolster support 2. A positioning ring 6 is provided on the bolster mounting shaft 14. The positioning ring 6 is connected to the bolster mounting shaft 14 by screws and is used to determine the axial position of the bolster support 2 to ensure that the guide wheel 4 on the bolster support 2 can face the horseshoe knife 8, ensuring the accuracy of the wire cutting.

[0041] The lower support 22 is connected to the guide wheel 4 through the bracket 3 and can rotate within a certain angle. One end of the bracket 3 is hinged to the lower support 3, and the other end is used to install the guide wheel 4. A spring 5 is set between the bracket 3 and the lower support 22. A first stop screw 51 is set above the spring 5. The first stop screw 51 is used to adjust the size of the spring force. In order to keep the adjusted spring force unchanged during operation, a threaded hole is opened on the front of the lower support 22, and a second stop screw 52 is installed to fix the position of the first stop screw 51. Figure 5 As shown, when the knife pillow support 2 rotates downward and the guide wheel 4 contacts the horseshoe knife 8, it will drive the bracket 3 to rotate upward, while compressing the spring 5, and then reset under the action of the rebound force of the spring 5, thereby reducing the rigid collision between the guide wheel 4 and the horseshoe knife 8, and playing a role in protecting the horseshoe knife 8 and the guide wheel 4.

[0042] A limit block 32 is provided at the bottom of the lower support 22, and the two ends of the limit block 32 are connected to the lower support 22 by screws. A limit groove 31 is provided at the bottom of the bracket 3, and the limit block 32 is adapted to the limit groove 31. When the bracket 3 is in a low position, the limit block 32 is located in the limit groove 31, and the limit block 32 is used to limit the lowest position of the bracket 3 to rotate downward.

[0043] Furthermore, guide wheel 4 is mounted on the end of bracket 3 near the horseshoe blade 8 via an eccentric shaft 41. Rotating eccentric shaft 41 allows for fine-tuning of the guide wheel 4's height, thereby adjusting the gap between the guide wheel 4 and the horseshoe blade 8. Two screws on bracket 3 secure the circumferential position of eccentric shaft 41. The guide wheel is equipped with a bearing and flanked by washers 42. Washers 42 have a larger diameter than the guide wheel 41 and are internally provided with bosses that press against the inner race of the bearing, limiting the bearing and guide wheel 4 axially to prevent axial movement.

[0044] like Figure 6 As shown, the horseshoe knife portion includes: a horseshoe knife mounting shaft 7B, a knife holder 73B, and a horseshoe knife 8. The horseshoe knife mounting shaft 7B includes a transmission shaft 71 and a knife holder mounting shaft 72. The transmission shaft 71 extends into the back panel of the device and is connected to the device's power source via a gear transmission. The device power drives the transmission shaft 71 to rotate, realizing the rotation function of the horseshoe knife mounting shaft 7B. In order to enable conventional speed adjustment of the horseshoe knife 8 without opening the rear cover of the machine, the horseshoe knife mounting shaft 7B is designed to be connected by two shafts through a coupling 74. After loosening the three fixing screws of the coupling 74, the horseshoe knife speed can be adjusted in a conventional manner.

[0045] Specifically, the tool holder mounting shaft 72 is connected to the transmission shaft 71 through a coupling 74, and the tool holder 73B is provided on the tool holder mounting shaft 72. The coupling 74 includes a first connecting portion 741 and a second connecting portion 742. The first connecting portion 741 is located on the transmission shaft 71 near the movement of the tool holder mounting shaft 72 and is fixed by screws. The second connecting portion is located at the end of the tool holder mounting shaft 72 and is provided with an arc-shaped hole 75. The fixing screw passes through the arc-shaped hole 75 and is connected to the screw hole on the first connecting portion 741 to achieve the connection between the transmission shaft 71 and the tool holder mounting shaft 72. The first connecting portion 741 is designed as a countersunk hole on the side close to the second connecting portion 742 to prevent the fixing screws of the first connecting portion 741 and the transmission shaft 71 from affecting the rotation of the tool holder mounting shaft 72 in the coupling 74.

[0046] The blade holder 73B is bolted to the blade holder mounting shaft 72 and rotates with the rotation of the blade holder mounting shaft 72. The blade holder 73B is T-shaped and, after being inserted into the mounting hole of the blade holder mounting shaft 72, is bolted to the blade holder mounting shaft 72 from the bottom. To facilitate processing and ensure the effective depth of the threaded hole, the upper portion of the blade holder 73B is designed to be square. The square top is fixed with four screws to adjust the parallelism of the horseshoe knife 8 relative to the bolster. The horseshoe knife 8 is mounted on the blade holder 73B and fixed by mounting screws 81. Mounting screws 81 are perpendicular to the axis of the blade holder mounting shaft 72 and penetrate into the mounting hole from the side of the blade holder 73B to fix the horseshoe knife 8. This allows the mounting screws 81 to be easily loosened and the horseshoe knife 8 to be removed and replaced without disassembling the blade holder 73B. The blade holder 73B is provided with a plug 84 parallel to the axis of the blade holder mounting shaft 72. The plug 84 is used to determine the axial position of the horseshoe knife 8 for quick installation.

[0047] The above examples are used to illustrate the present invention, which are only used to help understand the present invention and are not intended to limit the present invention. For those skilled in the art of the present invention, some simple deductions, modifications or substitutions can be made based on the concept of the present invention.

Claims

1. A ZB48A small box oil seal paper wire horseshoe knife assembly, comprising a horseshoe knife mounting shaft (7B), a knife seat (73B) and a horseshoe knife (8), characterized in that: The horseshoe knife mounting shaft (7B) comprises: A transmission shaft (71), one end of which passes through the back plate of the device and is connected to the power source of the device through a gear; A knife seat mounting shaft (72) is connected to the transmission shaft (71) via a coupling (74), and the knife seat (73B) is mounted on the knife seat mounting shaft (72); The knife seat (73B) is T-shaped, and the horseshoe knife (8) is inserted into the knife seat (73B) and fixed by a mounting screw (81). The mounting screw (81) is perpendicular to the axial direction of the knife seat mounting shaft (72) and fixes the horseshoe knife (8) from the side of the knife seat (73B).

2. The ZB48A small box oil seal paper wire horseshoe knife assembly according to claim 1, characterized in that: The coupling (74) comprises: A first connecting portion (741) is fixedly arranged on one end of the transmission shaft (71) close to the tool holder mounting shaft (72); The second connecting portion (742) is fixedly arranged on one end of the tool holder mounting shaft (72) close to the transmission shaft (71), and the second connecting portion (742) is configured to rotate axially around the transmission shaft (71) so that the circumferential position of the tool holder (73B) on the tool holder mounting shaft (72) is adjustable.

3. The ZB48A small box oil seal paper wire horseshoe knife assembly as described in claim 2, characterized in that: The second connecting portion (742) is provided with an arc-shaped hole (75), and a bolt passes through the arc-shaped hole (75) and is connected to the first connecting portion (741).

4. A ZB48A small box oil seal paper wire cutting device, characterized in that: include: A bolster and a horseshoe knife assembly according to any one of claims 1 to 3.

5. The ZB48A small box oil seal paper wire cutting device as described in claim 4 is characterized in that: The bolster comprises: A knife pillow support (2) and a guide wheel (4) provided on the knife pillow support (2); the knife pillow support (2) is installed on the lower paper passage door (1) via a knife pillow mounting shaft (14); the knife pillow support (2) is assembled from an upper support (21) and a lower support (22); the upper support (21) and the lower support (22) are clamped together on the knife pillow mounting shaft (14) after being assembled; The lower support (22) is connected to the guide wheel (4) through a bracket (3); the bracket (3) is configured to rotate up and down; an elastic member is provided between the bracket (3) and the lower support (22); when the bracket (3) rotates upward, the elastic member is compressed.

6. The ZB48A small box oil seal paper wire cutting device as described in claim 5 is characterized in that: The guide wheel (4) is mounted on one end of the bracket (3) close to the horseshoe knife (8) via an eccentric shaft (41).

7. The ZB48A small box oil seal paper wire cutting device as claimed in claim 6, characterized in that: The guide wheel (4) is provided with a bearing inside and gaskets (42) are provided on both sides, and the diameter of the gaskets (42) is larger than the diameter of the guide wheel (4); A boss is provided on one side of the gasket (42) close to the bearing, and the boss presses against the inner ring of the bearing.

8. The ZB48A small box oil seal paper wire cutting device as described in claim 5 is characterized in that: A limit block (32) is provided at the bottom of the lower support (22), and the limit block (32) is used to limit the lowest position of the bracket (3) when rotating downward.

9. The ZB48A small box oil seal paper wire cutting device as claimed in claim 8, characterized in that: A limiting groove (31) is provided at the bottom of the bracket (3), and the limiting block (32) is adapted to the limiting groove (31).

10. The ZB48A small box oil seal paper wire cutting device according to claim 5, characterized in that: A positioning ring (6) is provided on the bolster mounting shaft (14), and the positioning ring (6) is used to determine the axial position of the bolster support (2).

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