Automatic tensioning and cutting device for cable tie

Abstract

The utility model relates to the technical field of ribbons, and discloses an automatic tensioning and cutting device for ribbons, after the ribbons wind an article to be tightened by a circle, the tails of the ribbons are clamped into a tensioning opening, a person pulls a trigger at a handheld part, a control valve drives a tensioning air cylinder, the tensioning air cylinder moves a tensioning block towards the direction of the tensioning air cylinder through a tensioning shaft, and then the ribbons are tightened. The tail portion of the ribbon can be clamped at the stretching-in opening through the tensioning opening, the tail portion is clamped at the stretching-in opening, the head portion of the ribbon is clamped on the baffle, when the tail portion is pulled, the ribbon can contract and be clamped, and compared with the prior art, automatic tensioning is achieved through cooperation of the trigger, the control valve and the tensioning air cylinder.

Description

Technical Field

[0001] The utility model relates to the technical field of cable ties, in particular to an automatic tightening and cutting device for cable ties. Background Art

[0002] A handheld cable tie machine is a machine that uses the hand as a driving switch to tighten the cable tie. In some application scenarios, it can easily complete the tightening of the cable tie. However, in the existing technology, handheld cable tie machines often use the hand as a power source. If the number of cables is large, repeated use will make the hand tired. At the same time, traditional handheld cable tie machines only have a tightening function and do not have a cutting function. Utility Model Content

[0003] Based on the above, the purpose of the present invention is to provide an automatic tightening and cutting device for a cable tie, which can automatically tighten and cut the cable tie.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] The utility model provides a cable tie automatic tightening and cutting device, comprising:

[0006] The housing comprises a hand-held portion and a barrel portion, wherein a tightening port is provided on the front side of the barrel portion, a waste port is provided on the top of the front side of the barrel portion, and a baffle is provided above the tightening port;

[0007] Trigger, located on the front side of the handheld portion

[0008] The tensioning mechanism is arranged in the barrel portion, and includes a tensioning cylinder, a tensioning shaft is provided at the output end of the tensioning cylinder, a tensioning block is connected to the end of the tensioning block, an arc-shaped clamping plate is rotatably connected to the end of the tensioning block, a clamping tooth is provided on the arc-shaped clamping plate, and a limit plate is further connected to the tensioning block, the limit plate is located above the arc-shaped clamping plate, an insertion port is formed between the limit plate and the arc-shaped clamping plate, and the insertion port corresponds to the tensioning port;

[0009] The control valve has a control part on its front side, the end of the trigger abuts against the control part, the control valve is connected to the tensioning cylinder wire, and when the trigger is pulled, the drive of the tensioning cylinder can be controlled through the control valve.

[0010] Preferably, it further comprises a cutting component;

[0011] The cutting assembly includes a cutter, a first mounting groove is provided at the front end of the barrel portion, the first mounting groove is close to the tightening port, the cutter is disposed in the first mounting groove, a first linkage rod is connected to the bottom of the cutter, and a middle portion of the first linkage rod is rotatably connected to the barrel portion;

[0012] A first linkage assembly includes two sets of first linkage plates arranged side by side, the two sets of first linkage plates having two ends connected by a first linkage shaft, the two sets of first linkage shafts having middle portions connected by a second linkage shaft, the middle portions of the first linkage plates being rotatably connected to the barrel portion, and the tensioning shaft being located between the two sets of first linkage shafts;

[0013] A linkage groove is provided on one side of the first linkage rod close to the tensioning cylinder, and the first linkage shaft located below the tensioning shaft is clamped into the linkage groove.

[0014] Preferably, a buffer block is further provided in the barrel portion, and the buffer block is located on the front side of the first linkage shaft above the tensioning shaft.

[0015] Preferably, it further comprises a reset component, wherein the reset component is arranged in the handheld part;

[0016] The first linkage assembly also includes two sets of second linkage plates arranged side by side;

[0017] A third linkage plate is further connected to the middle portion of the first linkage plate, the third linkage plate being connected to the second linkage plate, a first rotation groove being formed at the connection position between the second linkage plate and the third linkage plate, a rotation block being provided in the first rotation groove, the rotation block being connected to the barrel portion, and the first linkage plate being rotationally connected to the barrel portion via the third linkage plate and the rotation block;

[0018] The bottom of the second linkage plate is linked to the reset component.

[0019] Preferably, the first linkage plate, the second linkage plate and the third linkage plate are integrally formed.

[0020] Preferably, the third linkage plate includes a third linkage plate 1 and a third linkage plate 2, and an obtuse angle is formed between the third linkage plate 1 and the third linkage plate 2.

[0021] Preferably, the reset assembly includes a reset base, reset slides are provided on both sides of the reset base, the reset slide can move up and down, the middle of the reset slide is connected with a reset shaft, the top of the reset slide is connected with a reset slide bar, reset slide grooves are provided on both sides of the interior of the hand-held part, the reset slide bar is stuck in the reset slide groove, the top of the reset slide is also rotatably connected with a reset linkage hook plate, the reset linkage hook plate is provided with a hook groove, the bottom of the two groups of second linkage plates are connected to a third linkage shaft, the third linkage shaft is stuck in the hook groove, and a reset spring is also provided on the reset base, the reset spring is located between the two groups of reset slides, the top of the reset spring abuts against a reset block, and the reset block abuts against the reset shaft.

[0022] Preferably, the reset block is slidably connected to the reset slide plate.

[0023] Preferably, a limit screw is further provided on the reset base, and the reset spring is sleeved on the outer side of the limit screw. The beneficial effects of the present utility model are:

[0024] The utility model provides an automatic tightening and cutting device for a cable tie. After the cable tie is wrapped around the article to be tightened, the tail of the cable tie is clamped into the tightening port. I hold the cable tie and pull the trigger. The control valve drives the tightening cylinder. The tightening cylinder moves the tightening block toward the tightening cylinder through the tightening shaft. The tail of the cable tie is clamped in the insertion port through the tightening port. At the insertion port position, the tail is clamped, and the head of the cable tie is clamped on the baffle. When the tail is pulled, the cable tie will shrink and be tightened. Compared with the existing technology, automatic tightening is achieved through the cooperation of the trigger, the control valve and the tightening cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0026] Figure 1 A schematic structural diagram of a cable tie automatic tightening and cutting device is provided for an embodiment of the present utility model;

[0027] Figure 2 A schematic diagram of the internal structure of a cable tie automatic tightening and cutting device is provided for an embodiment of the present utility model;

[0028] Figure 3 A schematic structural diagram of a first linkage assembly provided in an embodiment of the present utility model;

[0029] Figure 4 A schematic structural diagram of a tensioning mechanism provided in an embodiment of the present utility model;

[0030] Figure 5 This is a schematic structural diagram of a reset assembly provided in an embodiment of the present utility model.

[0031] In the picture:

[0032] 1. Housing; 11. Handle; 111. Reset slide; 12. Barrel; 121. Tightening port; 122. Waste port; 123. Baffle; 124. First mounting slot;

[0033] 2. Trigger;

[0034] 3. Tensioning mechanism; 31. Tensioning cylinder; 32. Tensioning shaft; 33. Tensioning block; 34. Arc-shaped clamping plate; 35. Clamping teeth; 36. Limiting plate; 37. Extension port;

[0035] 4. Cutting assembly; 41. Cutter; 42. Linkage rod; 421. Linkage slot;

[0036] 5. First linkage assembly; 51. First linkage plate; 52. First linkage shaft; 53. Second linkage shaft; 54. Second linkage plate; 541. Second linkage plate 1; 542. Second linkage plate 2; 55. Third linkage plate; 56. First rotation slot; 57. Third linkage shaft; 58. Rotating block;

[0037] 6. Buffer block;

[0038] 7. Reset assembly; 71. Reset base; 72. Reset slide; 73. Reset shaft; 74. Reset slide; 75. Hook plate; 751. Hook groove; 76. Reset spring; 77. Reset block; 78. Limit screw;

[0039] 8. Control valve; 81. Control parts. DETAILED DESCRIPTION

[0040] To make the technical problems solved by the present invention, the technical solutions adopted, and the technical effects achieved more clearly, the technical solutions of the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work shall fall within the scope of protection of the present invention.

[0041] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0042] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0043] In the description of this embodiment, the terms "upper," "lower," "left," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0044] like Figures 1 to 5As shown, the embodiment of the present invention provides an automatic tightening and cutting device for a cable tie, comprising: a housing 1, which includes a hand-held portion 11 and a barrel portion 12, wherein the front side of the barrel portion 12 is provided with a tightening port 121, the top of the front side of the barrel portion 12 is provided with a waste port 122, and a baffle 123 is provided above the tightening port 121; a trigger 2, which is provided at the front side of the hand-held portion 11; a tightening mechanism 3, which is provided in the barrel portion 12, and comprises a tightening cylinder 31, the output end of the tightening cylinder 31 is provided with a tightening shaft 32, the end of the tightening shaft 32 is connected to a tightening block 33, and the tightening block 33 The end of the arc-shaped clamping plate 34 is rotatably connected to the arc-shaped clamping plate 34, and a clamping tooth 35 is provided on the arc-shaped clamping plate 34. The tensioning block 33 is also connected to a limiting plate 36, and the limiting plate 36 is located above the arc-shaped clamping plate 34. An insertion port 37 is formed between the limiting plate 36 and the arc-shaped clamping plate 34, and the insertion port 37 corresponds to the tensioning port 121; a control valve 4 is provided with a control part 41 on its front side, and the end of the trigger 2 abuts against the control part 41. The control valve 4 is connected to the tensioning cylinder 31 with an electric wire. By pulling the trigger 2, the drive of the tensioning cylinder 31 can be controlled by the control valve 4. Specifically, in the embodiment of the present invention, after the cable tie is wrapped around the item to be tied, the tail of the cable tie is clamped into the tightening port 121. I am on the hand-held part 11 and pull the trigger 2. The control valve 4 drives the tightening cylinder 31. The tightening cylinder 31 will move the tightening block 33 toward the tightening cylinder 31 through the tightening shaft 32. The tail of the cable tie will be clamped in the insertion port 37 through the tightening port 121. At the insertion port 37, the tail is clamped, and the head of the cable tie is clamped on the baffle 123. When the tail is pulled, the cable tie will shrink and tighten. Compared with the existing technology, automatic tightening is achieved through the cooperation of the trigger 2, the control valve 4 and the tightening cylinder 31.

[0045] In some embodiments, as Figure 2 and 3 As shown, the invention also includes a cutting assembly 4; the cutting assembly 4 includes a cutter 41. A first mounting groove 124 is provided at the front end of the barrel portion 12. The first mounting groove 124 is close to the tensioning opening 121. The cutter 41 is disposed in the first mounting groove 124. A first linkage rod 42 is connected to the bottom of the cutter 41. The middle portion of the first linkage rod 42 is rotatably connected to the barrel portion 12.

[0046] The first linkage assembly 5 includes two groups of first linkage plates 51 arranged side by side, the two ends of the first linkage plates 51 are connected by a first linkage shaft 52, the middle parts of the two groups of first linkage shafts 52 are connected by a second linkage shaft 53, the middle part of the first linkage plate 51 is rotatably connected to the barrel part 12, and the tensioning shaft 32 is located between the two groups of first linkage shafts 52; a linkage groove 421 is provided on the side of the first linkage rod 42 close to the tensioning cylinder 31, and the first linkage shaft 52 located below the tensioning shaft 32 is stuck in the linkage groove 421. Specifically, in the embodiment of the present invention, after the cable tie is fully pulled close, the tensioning cylinder 31 continues to drive, which will give the tensioning cylinder 31 a forward force. Since the tensioning cylinder 31 will abut against the first linkage shaft 52, this forward force causes the first linkage plate 51 to rotate, and the first linkage plate 51 then drives the linkage rod 42 to rotate, and the linkage rod 42 drives the cutter 41 to slide on the first mounting groove 124, thereby completing the cutting, and then the waste at the tail of the cable tie is discharged from the waste port 122, completing the complete automatic tensioning and cutting.

[0047] In some embodiments, as Figure 2 As shown, a buffer block 6 is further provided in the barrel, and the buffer block 6 is located in front of the first linkage shaft 52 above the tensioning shaft 32. Specifically, when the tensioning cylinder 31 moves forward, the buffer block 6 limits the forward position and protects the tensioning cylinder 31.

[0048] In some embodiments, as Figure 2 、 3As shown in Figure 5, the gun further includes a reset assembly 7 disposed within the handle portion 11. The first linkage assembly 5 also includes two sets of second linkage plates 54 arranged side by side. A third linkage plate 55 is connected to the middle portion of the first linkage plate 51. The third linkage plate 55 connects to the second linkage plate 54. A first rotation slot 56 is defined at the junction between the second and third linkage plates 54, 55. A rotation block 58 is disposed within the first rotation slot and is connected to the barrel portion 12. The first linkage plate 51 is rotationally connected to the barrel portion 12 via the third linkage plate 55 and the rotation block 58. The bottom of the second linkage plate 54 is linked to the reset assembly 7. The first, second, and third linkage plates 51, 54, 55 are integrally formed. The third linkage plate 55 includes a first linkage plate 551 and a second linkage plate 552, with an obtuse angle formed between the first and second linkage plates 551, 552. The reset assembly 7 includes a reset base 71, with reset slides 72 provided on both sides of the reset base 71. The reset slides 72 are movable up and down. A reset shaft 73 is connected to the middle of the reset slide 72, and a reset slide bar 74 is connected to the top of the reset slide 72. Reset grooves 111 are provided on both sides of the interior of the handheld portion 11, and the reset slide bar 74 is engaged with the reset grooves 111. The top of the reset slide 72 is also rotatably connected to a reset linkage hook plate 75, which has a hook groove 751. The bottoms of the two sets of second linkage plates 54 are connected to the third linkage shaft 57, which engages with the hook groove 751. The reset base 71 is also provided with a reset spring 76, which is located between the two sets of reset slides 72. The top of the reset spring 76 abuts a reset block 77, which abuts the reset shaft 73. The reset block 77 is slidably connected to the reset slide 72. The reset base 71 is further provided with a limit screw 78, and the reset spring 76 is sleeved on the outer side of the limit screw 78. Specifically, in this embodiment, when the first linkage plate 51 swings and the cutting process is completed, the first linkage plate 51 drives the third linkage plate 55 and the second linkage plate 54 to rotate, the second linkage plate 54 drives the hook plate 75 to swing, the hook plate 75 drives the reset slide 74 downward, the reset slide 74 then drives the reset slide plate 72 downward, the reset shaft 73 presses down the reset block 77, and the reset block 77 compresses the spring. When the cutting is completed, under the elastic force of the reset spring 76, the reset block 77 slides upward, drives the reset shaft 73 upward, the reset slide plate 72 upward, drives the hook plate 75 to swing, the hook plate 75 drives the third linkage plate 55 and the third linkage plate 55 to swing, the third linkage plate 55 drives the first linkage plate 51 to swing, and the first linkage plate 51 drives the first linkage shaft 52 to swing, thereby completing the reset and allowing the next cable tie to be tied.

[0049] Note that the above are merely preferred embodiments of the present invention and the technical principles employed. Those skilled in the art will appreciate that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments, and substitutions are possible for those skilled in the art without departing from the scope of protection of the present invention. Therefore, while the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments and may include many other equivalent embodiments without departing from the scope of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. A cable tie automatic tightening and cutting device, characterized in that: include: A housing (1) comprising a handheld portion (11) and a barrel portion (12), wherein a tensioning opening (121) is provided on the front side of the barrel portion (12), a waste opening (122) is provided on the top of the front side of the barrel portion (12), and a baffle (123) is provided above the tensioning opening (121); A trigger (2) is provided on the front side of the handheld portion (11) A tensioning mechanism (3) is arranged in the barrel portion (12), and includes a tensioning cylinder (31), an output end of the tensioning cylinder (31) is provided with a tensioning shaft (32), an end of the tensioning shaft (32) is connected to a tensioning block (33), an end of the tensioning block (33) is rotatably connected to an arc-shaped clamping plate (34), the arc-shaped clamping plate (34) is provided with a clamping tooth (35), and the tensioning block (33) is also connected to a limiting plate (36), the limiting plate (36) is located above the arc-shaped clamping plate (34), and an insertion port (37) is formed between the limiting plate (36) and the arc-shaped clamping plate (34), and the insertion port (37) corresponds to the tensioning port (121); The control valve (8) has a control member (81) provided on its front side. The end of the trigger (2) abuts against the control member (81). The control valve (8) is connected to the tensioning cylinder (31) by an electric wire. When the trigger (2) is pulled, the drive of the tensioning cylinder (31) can be controlled through the control valve (8).

2. The automatic cable tie tightening and cutting device according to claim 1, characterized in that: Also included is a cutting assembly (4); The cutting assembly (4) includes a cutter (41), a first mounting groove (124) is provided at the front end of the gun barrel portion (12), the first mounting groove (124) is close to the tensioning port (121), the cutter (41) is arranged in the first mounting groove (124), the bottom of the cutter (41) is connected to a first linkage rod (42), and the middle portion of the first linkage rod (42) is rotatably connected to the gun barrel portion (12); A first linkage assembly (5) comprises two groups of first linkage plates (51) arranged side by side, the two ends of the first linkage plates (51) being connected via a first linkage shaft (52), the middle portions of the two groups of the first linkage shafts (52) being connected via a second linkage shaft (53), the middle portion of the first linkage plates (51) being rotatably connected to the gun barrel portion (12), and the tensioning shaft (32) being located between the two groups of the first linkage shafts (52); A linkage groove (421) is provided on one side of the first linkage rod (42) close to the tensioning cylinder (31), and a first linkage shaft (52) located below the tensioning shaft (32) is engaged in the linkage groove (421).

3. The automatic cable tie tightening and cutting device according to claim 2, characterized in that: A buffer block (6) is also provided in the barrel portion (12), and the buffer block (6) is located on the front side of the first linkage shaft (52) above the tensioning shaft (32).

4. The automatic cable tie tightening and cutting device according to claim 2, characterized in that: It also includes a reset component (7), wherein the reset component (7) is arranged in the handheld part (11); The first linkage assembly (5) further includes two sets of second linkage plates (54) arranged side by side; A third linkage plate (55) is further connected to the middle of the first linkage plate (51), and the third linkage plate (55) is connected to the second linkage plate (54). A first rotation groove (56) is provided at the connection position between the second linkage plate (54) and the third linkage plate (55). A rotation block (58) is provided in the first rotation groove (56), and the rotation block (58) is connected to the barrel portion (12). The first linkage plate (51) is rotationally connected to the barrel portion (12) through the third linkage plate (55) and the rotation block (58). The bottom of the second linkage plate (54) is linked to the reset assembly (7).

5. The automatic cable tie tightening and cutting device according to claim 4, characterized in that: The first linkage plate (51), the second linkage plate (54) and the third linkage plate (55) are integrally formed.

6. The automatic cable tie tightening and cutting device according to claim 4, characterized in that: The third linkage plate (55) comprises a third linkage plate 1 (551) and a third linkage plate 2 (552), and an obtuse angle is formed between the third linkage plate 1 (551) and the third linkage plate 2 (552).

7. The automatic cable tie tightening and cutting device according to claim 4 or 6, characterized in that: The reset assembly (7) includes a reset base (71), and reset slides (72) are provided on both sides of the reset base (71). The reset slide (72) can move up and down, and the middle of the reset slide (72) is connected to a reset shaft (73), and the top of the reset slide (72) is connected to a reset slide bar (74). Reset grooves (111) are provided on both sides of the interior of the handheld part (11), and the reset slide bar (74) is inserted into the reset groove (111). The top of the reset slide (72) is also rotatably connected to a reset shaft (73). A reset linkage hook plate (75) is provided with a hook groove (751), the bottoms of the two groups of the second linkage plates (54) are connected with a third linkage shaft (57), the third linkage shaft (57) is engaged with the hook groove (751), and a reset spring (76) is further provided on the reset base (71), the reset spring (76) is located between the two groups of the reset slide plates (72), the top of the reset spring (76) is in contact with a reset block (77), and the reset block (77) is in contact with the reset shaft (73).

8. The automatic cable tie tightening and cutting device according to claim 7, characterized in that: The reset block (77) is slidably connected to the reset slide plate (72).

9. The automatic cable tie tightening and cutting device according to claim 7, characterized in that: A limiting screw (78) is also provided on the reset base (71), and the reset spring (76) is sleeved on the outside of the limiting screw (78).

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