Packaging machine transparent paper drawstring locking device

Abstract

The utility model discloses a transparent paper drawstring locking device of a packaging machine. The transparent paper drawstring locking device comprises a mounting plate, a fixing assembly and a locking assembly. The fixing assembly comprises a first fixing rod, a second fixing rod and a limiting rod, the first fixing rod and the second fixing rod are arranged on the two sides of the top end of the mounting plate correspondingly, and the first end of the limiting rod is arranged on the side edge of the mounting plate; the locking assembly comprises a first fan-shaped locking plate and a second fan-shaped locking plate which are rotationally connected with the first fixing rod and the second fixing rod correspondingly, the first fan-shaped locking plate and the second fan-shaped locking plate are both located in the groove of the guide roller, a distance is formed between the first fan-shaped locking plate and the pull belt, and the second end of the limiting rod abuts against the side wall of the first fan-shaped locking plate. According to the utility model, the second end of the first fan-shaped locking plate and the second end of the second fan-shaped locking plate respectively limit the drawstring in the groove of the guide roller, so that the situation that the drawstring is stressed to jump from the inner part of the groove of the guide roller to turn over or fall off is avoided, and the maintenance frequency of operators is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging machine mechanical equipment, and more specifically, to a transparent paper pulling belt locking device for a packaging machine. Background Art

[0002] The YB55 outer box transparent paper packaging machine uses a shrinkable transparent pulling belt with self-adhesive properties to directly paste the pulling belt on the transparent paper. The pulling belt supply part mainly consists of a servo motor, bevel gears, a shaft, a control cam, a wax cylinder device, etc. When the machine starts to work, the transparent paper with the pulling belt is pulled by the pulling force of a pair of paper feeding rollers, so that the roller at the uppermost end of the swing rod is subjected to a pulling force in the lower right direction. This pulling force overcomes the pulling force of the spring at the lower end of the swing rod, causing the swing rod to rotate clockwise, thereby driving the flange equipped with the control cam to rotate together, changing the distance between the control cam and the linear sensor. The linear sensor emits a signal, the speed of the servo motor changes accordingly, and through the meshing of a pair of bevel gears, the rotation speed of the shaft equipped with the pulling belt paper roll also changes accordingly.

[0003] However, when the swing rod rotates counterclockwise instantaneously after reaching the limit position, the tension of the pulling belt disappears instantaneously. Under the action of inertia, the pulling belt relaxes, jumps, turns over or falls off in the "U" - shaped groove of the two guide rollers, resulting in a batch quality accident of missing small box pulling wire packaging.

[0004] Therefore, how to provide a transparent paper pulling belt locking device for a packaging machine has become a technical problem urgently to be solved in this field. Summary of the Utility Model

[0005] An object of the utility model is to provide a new technical solution for a transparent paper pulling belt locking device for a packaging machine.

[0006] According to a first aspect of the utility model, there is provided a transparent paper pulling belt locking device for a packaging machine. The packaging machine includes a fixed bracket, guide rollers and a pulling belt. The guide rollers are rotatably arranged on the fixed bracket, and the pulling belt is located in the groove of the guide rollers. The locking device includes a mounting plate, a fixing component and a locking component. The mounting plate is connected to the fixed bracket and is arranged parallel to the fixed bracket.

[0007] The fixing component includes a first fixing rod, a second fixing rod and a limiting rod. The first fixing rod and the second fixing rod are respectively arranged on both sides of the top end of the mounting plate, and the first end of the limiting rod is arranged on the side edge of the mounting plate and is located below the first fixing rod.

[0008] The locking assembly includes a first sector locking plate and a second sector locking plate. The first ends of the first sector locking plate and the second sector locking plate are respectively rotatably connected to the first fixing rod and the second fixing rod. The second ends of the first sector locking plate and the second sector locking plate are respectively located in the grooves of the guide rollers and have a spacing from the pulling belt. The second end of the limiting rod abuts against the side wall of the first sector locking plate.

[0009] Optionally, the spacing between the second end of the first sector locking plate and the second end of the second sector locking plate and the pulling belt is 1 nm.

[0010] Optionally, the first sector locking plate and the second sector locking plate are both provided with first mounting holes;

[0011] The locking assembly further includes a connecting plate. Both ends of the connecting plate respectively have pin shafts, and the pin shafts are inserted into the first mounting holes.

[0012] Optionally, two ends of the top of the mounting plate are respectively provided with first waist-shaped holes, the first waist-shaped holes extend along the length direction of the first sector locking plate, and the first ends of the first fixing rod and the second fixing rod respectively penetrate through the first waist-shaped holes.

[0013] Optionally, the fixing assembly further includes first locking nuts, and the first locking nuts are respectively arranged at the first ends of the first fixing rod and the second fixing rod to fix the first fixing rod and the second fixing rod on the mounting plate.

[0014] Optionally, the mounting plate further has second waist-shaped holes, the second waist-shaped holes extend along the width direction of the first sector locking plate, and the first end of the limiting rod is arranged in the second waist-shaped holes.

[0015] Optionally, the fixing assembly further includes second locking nuts, and the second locking nuts are respectively arranged at the first ends of the limiting rod to fix the limiting rod on the mounting plate.

[0016] Optionally, a limiting groove is arranged on the side wall of the first sector locking plate, the limiting groove is correspondingly arranged with the second waist-shaped hole, and the second end of the limiting rod is located in the limiting groove.

[0017] The beneficial effects of the present utility model are as follows:

[0018] In the present utility model, the first fixing rod and the second fixing rod are respectively arranged on both sides of the top end of the mounting plate. The first end of the limiting rod is arranged on the side edge of the mounting plate and is located below the first fixing rod. The first ends of the first sector locking plate and the second sector locking plate are respectively rotatably connected to the first fixing rod and the second fixing rod. The second ends of the first sector locking plate and the second sector locking plate are respectively located in the grooves of the guide roller and have a spacing from the pulling belt. The second end of the limiting rod abuts against the side wall of the first sector locking plate. In the working state, the second ends of the first sector locking plate and the second sector locking plate respectively limit the pulling belt inside the groove of the guide roller, avoiding the situation that the pulling belt jumps, turns over or falls off from the inside of the groove of the guide roller due to force, reducing the maintenance frequency of the operator and effectively improving the working efficiency.

[0019] Other features and advantages of the present utility model will become clear from the following detailed description of the exemplary embodiments of the present utility model with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings incorporated in and forming a part of this specification illustrate embodiments of the present utility model and, together with the description, serve to explain the principles of the present utility model.

[0021] Figure 1 It is a structural diagram of the transparent paper pulling belt locking device of the packaging machine of the present utility model;

[0022] Figure 2 It is a structural diagram of another angle of the transparent paper pulling belt locking device of the packaging machine of the present utility model;

[0023] Figure 3 It is a structural diagram of the fixing component and the locking component of the present utility model.

[0024] The labels in the figures are as follows: 1, mounting plate; 11, first kidney-shaped hole; 12, second kidney-shaped hole; 2, fixing component; 21, first fixing rod; 22, second fixing rod; 23, limiting rod; 24, first locking nut; 25, second locking nut; 3, locking component; 31, first sector locking plate; 32, second sector locking plate; 33, first mounting hole; 34, connecting plate; 35, pin shaft; 36, limiting groove; 4, fixing bracket; 5, guide roller; 51, groove; 6, pulling belt; 7, support frame; 8, transparent paper; 9, conveying roller. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] Now, various exemplary embodiments of the present utility model will be described in detail with reference to the accompanying drawings. It should be noted that: unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and values set forth in these embodiments do not limit the scope of the present utility model.

[0026] The following description of at least one exemplary embodiment is merely illustrative and in no way restrictive of the present utility model and its application or use.

[0027] Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such technologies, methods, and devices should be regarded as part of the specification.

[0028] In all the examples shown and discussed herein, any specific values should be construed as merely exemplary and not as limitations. Accordingly, other examples of the exemplary embodiments may have different values.

[0029] As Figures 1 to 3 shown, an embodiment of the present utility model provides a locking device for the transparent paper pulling belt of a packaging machine. The packaging machine includes a fixed bracket 4, a guiding roller 5, and a pulling belt 6. The guiding roller 5 is rotatably arranged on the fixed bracket 4, and the pulling belt 6 is located in the groove 51 of the guiding roller 5. The locking device includes a mounting plate 1, a fixing component 2, and a locking component 3. The mounting plate 1 is connected to the fixed bracket 4 and is arranged parallel to the fixed bracket 4. Specifically, both the fixing component 2 and the locking component 3 are located above the guiding roller 5 and the pulling belt 6.

[0030] The packaging machine further includes a support frame 7, a transparent paper 8, and a conveying roller 9. The conveying roller 9 is rotatably arranged on the support frame 7. The transparent paper 8 is connected to the outer peripheral wall of the conveying roller 9, and the conveying roller 9 is used to convey the transparent paper 8. The guiding roller 5 is used to convey the pulling belt 6 onto the transparent paper 8 and make the pulling belt 6 adhere to the transparent paper 8.

[0031] The fixing component 2 includes a first fixing rod 21, a second fixing rod 22, and a limiting rod 23. The first fixing rod 21 and the second fixing rod 22 are respectively arranged on both sides of the top end of the mounting plate 1. The first end of the limiting rod 23 is arranged on the side edge of the mounting plate 1 and is located below the first fixing rod 21.

[0032] The locking component 3 includes a first sector-shaped locking plate 31 and a second sector-shaped locking plate 32. The first end of the first sector-shaped locking plate 31 and the first end of the second sector-shaped locking plate 32 are respectively rotatably connected to the first fixing rod 21 and the second fixing rod 22. The second ends of the first sector-shaped locking plate 31 and the second sector-shaped locking plate 32 are respectively located in the groove 51 of the guiding roller 5 and have a spacing from the pulling belt 6. The second end of the limiting rod 23 abuts against the side wall of the first sector-shaped locking plate 31. The limiting rod 23 is used to limit the movement of the first sector-shaped locking plate 31 and the second sector-shaped locking plate 32.

[0033] It should be noted that when the drawstring 6 needs to be replaced or installed, the operator removes the limit rod 23 from the mounting plate 1, so that the limit rod 23 releases the limiting effect on the first sector locking plate 31 and the second sector locking plate 32, and then rotates the first sector locking plate 31 and the second sector locking plate 32 to remove the first sector locking plate 31 and the second sector locking plate 32 from the groove 51 of the guide roller 5, thus facilitating the operator to replace or install the drawstring 6.

[0034] In the working state, the second ends of the first sector locking plate 31 and the second sector locking plate 32 respectively have a limiting effect on the drawstring 6 inside the groove 51 of the guide roller 5, thereby preventing the drawstring 6 from bouncing, flipping or falling off inside the groove 51 of the guide roller 5.

[0035] In the present utility model, the first fixing rod 21 and the second fixing rod 22 are respectively arranged on both sides of the top end of the mounting plate 1, the first end of the limit rod 23 is arranged on the side edge of the mounting plate 1 and is located below the first fixing rod 21; and the first ends of the first sector locking plate 31 and the second sector locking plate 32 are respectively rotatably connected to the first fixing rod 21 and the second fixing rod 22, the second ends of the first sector locking plate 31 and the second sector locking plate 32 are respectively located in the groove 51 of the guide roller 5 and have a spacing from the drawstring 6, and the second end of the limit rod 23 abuts against the side wall of the first sector locking plate 31. In the working state, the second ends of the first sector locking plate 31 and the second sector locking plate 32 respectively have a limiting effect on the drawstring 6 inside the groove 51 of the guide roller 5, preventing the drawstring 6 from bouncing, flipping or falling off inside the groove 51 of the guide roller 5 due to force, reducing the maintenance frequency of the operator, and effectively improving the working efficiency.

[0036] In an embodiment of the transparent paper drawstring locking device of the packaging machine of the present utility model, the spacing between the second ends of the first sector locking plate 31 and the second sector locking plate 32 and the drawstring 6 is 1 nm. Such a setting does not affect the movement process of the drawstring 6 by the first sector locking plate 31 and the second sector locking plate 32, and also has a limiting effect on the drawstring 6.

[0037] In an embodiment of the transparent paper drawstring locking device of the packaging machine of the present utility model, as Figures 1 to 3 shown, the first sector locking plate 31 and the second sector locking plate 32 are both provided with first mounting holes 33.

[0038] The locking assembly 3 further includes a connecting plate 34, and both ends of the connecting plate 34 respectively have a pin shaft 35, and the pin shaft 35 is inserted into the first mounting hole 33.

[0039] Specifically, the first ends of the pin shafts 35 are respectively connected to both ends of the connecting plate 34. Threaded holes are provided at the second ends of the pin shafts 35. The fastening bolts pass through the first mounting holes 33 and are connected to the threaded holes of the pin shafts 35 to fix the connecting plate 34 on the first sector locking plate 31 and the second sector locking plate 32, so that the connecting plate 34 is coupled with the first sector locking plate 31 and the second sector locking plate 32 together.

[0040] When it is necessary to replace or install the drawband 6, the operator removes the limit rod 23 from the mounting plate 1, so that the limit rod 23 releases the limiting effect on the first sector locking plate 31 and the second sector locking plate 32, and then acts on the connecting plate 34, causing the connecting plate 34 to move and drive the first sector locking plate 31 and the second sector locking plate 32 to rotate, and further removing the first sector locking plate 31 and the second sector locking plate 32 from the groove 51 of the guide roller 5, thus facilitating the operator to replace or install the drawband 6.

[0041] In the present utility model, by providing the first mounting holes 33 on both the first sector locking plate 31 and the second sector locking plate 32, and enabling both ends of the connecting plate 34 to respectively have pin shafts 35, the pin shafts 35 are inserted into the first mounting holes 33, and the connecting plate 34 is respectively connected to the first sector locking plate 31 and the second sector locking plate 32 to form a connecting rod structure, so that the first sector locking plate 31 and the second sector locking plate 32 maintain synchronous movement, improving the convenience of rotating the first sector locking plate 31 and the second sector locking plate 32. The structure is simple and the cost is reduced.

[0042] In an embodiment of the transparent paper drawband locking device of the packaging machine of the present utility model, as Figures 1 to 3 shown, first waist-shaped holes 11 are respectively provided at both ends of the top of the mounting plate 1. The first waist-shaped holes 11 extend along the length direction of the first sector locking plate 31. The first ends of the first fixing rod 21 and the first ends of the second fixing rods 22 respectively pass through the first waist-shaped holes 11.

[0043] Specifically, when it is necessary to adjust the distance between the second end of the first sector locking plate 31 and the second end of the second sector locking plate 32 and the drawband 6, the operator controls the first fixing rod 21 and the second fixing rod 22 to move simultaneously in the first waist-shaped holes 11 towards the top of the mounting plate 1 or towards the bottom of the mounting plate 1, thereby increasing or decreasing the distance between the second end of the first sector locking plate 31 and the second end of the second sector locking plate 32 and the drawband 6.

[0044] In the present utility model, first kidney-shaped holes 11 are respectively provided at both ends of the top of the mounting plate 1, and the first kidney-shaped holes 11 are arranged to extend along the length direction of the first sector-shaped locking plate 31. The first ends of the first fixing rod 21 and the second fixing rod 22 respectively penetrate through the first kidney-shaped holes 11. Thus, the first fixing rod 21 and the second fixing rod 22 can move along the length direction of the first sector-shaped locking plate 31 within the first kidney-shaped holes 11, thereby changing the distance between the second end of the first sector-shaped locking plate 31 and the second end of the second sector-shaped locking plate 32 and the pulling belt 6, which ensures the normal operation of the pulling belt 6.

[0045] In an embodiment of the transparent paper pulling belt locking device of the packaging machine of the present utility model, as Figure 2 shown, the fixing assembly 2 further includes a first locking nut 24. The first locking nut 24 is respectively arranged at the connection of the first ends of the first fixing rod and the second fixing rod 22 to fix the first fixing rod and the second fixing rod 22 on the mounting plate 1.

[0046] In the present utility model, the first locking nut 24 is respectively arranged at the connection of the first ends of the first fixing rod 21 and the second fixing rod 22 to fix the first fixing rod 21 and the second fixing rod 22 on the mounting plate 1, thereby stably installing the first fixing rod 21 and the second fixing rod 22 on the mounting plate 1.

[0047] In an embodiment of the transparent paper pulling belt locking device of the packaging machine of the present utility model, as Figures 1 to 3 shown, the mounting plate 1 further has a second kidney-shaped hole 12. The second kidney-shaped hole 12 is arranged to extend along the width direction of the first sector-shaped locking plate 31. The first end of the limiting rod 23 is arranged in the second kidney-shaped hole 12.

[0048] In the present utility model, by providing the second kidney-shaped hole 12 on the mounting plate 1, arranging the second kidney-shaped hole 12 to extend along the width direction of the first sector-shaped locking plate 31, and arranging the first end of the limiting rod 23 in the second kidney-shaped hole 12, the limiting rod 23 can move along the width direction of the first sector-shaped locking plate 31 within the second kidney-shaped hole 12, thereby adjusting the position of the limiting rod 23 and enabling the limiting rod 23 to maintain the limiting effect on the first sector-shaped locking plate 31.

[0049] In an embodiment of the transparent paper pulling belt locking device of the packaging machine of the present utility model, the fixing assembly 2 further includes a second locking nut 25. The second locking nut 25 is respectively arranged at the connection of the first ends of the limiting rod 23 to fix the limiting rod 23 on the mounting plate 1.

[0050] In the present utility model, by respectively arranging the second locking nut 25 at the connection of the first ends of the limiting rod 23 to fix the limiting rod 23 on the mounting plate 1, the stability of the limiting plate installed on the mounting plate 1 is improved.

[0051] In an embodiment of the transparent paper pulling belt locking device of the packaging machine of the present utility model, as Figures 1 to 3 shown, a limiting groove 36 is provided on the side wall of the first sector locking plate 31. The limiting groove 36 is correspondingly arranged with the second kidney-shaped hole 12, and the second end of the limiting rod 23 is located in the limiting groove 36.

[0052] The present utility model sets the limiting groove 36 on the side wall of the first sector locking plate 31, makes the limiting groove 36 be correspondingly arranged with the second kidney-shaped hole 12, and the second end of the limiting rod 23 is located in the limiting groove 36, so that the limiting groove 36 cooperates with the limiting rod 23 to keep a limiting effect on the first sector locking plate 31.

[0053] Although some specific embodiments of the present utility model have been described in detail by way of examples, those skilled in the art should understand that the above examples are only for illustration and not for limiting the scope of the present utility model. Those skilled in the art should understand that the above embodiments can be modified without departing from the scope and spirit of the present utility model. The scope of the present utility model is defined by the appended claims.

Claims

1. A transparent paper drawstring locking device for a packaging machine, characterized in that: The packaging machine comprises a fixed bracket, a guide roller and a drawstring, wherein the guide roller is rotatably arranged on the fixed bracket, and the drawstring is located in a groove of the guide roller; the locking device comprises a mounting plate, a fixing assembly and a locking assembly, wherein the mounting plate is connected to the fixed bracket and is arranged parallel to the fixed bracket; The fixing assembly includes a first fixing rod, a second fixing rod and a limiting rod, wherein the first fixing rod and the second fixing rod are respectively arranged on both sides of the top end of the mounting plate, and the first end of the limiting rod is arranged on the side of the mounting plate and is located below the first fixing rod; The locking assembly includes a first fan-shaped locking plate and a second fan-shaped locking plate, the first end of the first fan-shaped locking plate and the first end of the second fan-shaped locking plate are respectively rotatably connected to the first fixed rod and the second fixed rod, the second end of the first fan-shaped locking plate and the second end of the second fan-shaped locking plate are respectively located in the groove of the guide roller and have a spacing with the pull belt, and the second end of the limiting rod abuts against the side wall of the first fan-shaped locking plate.

2. The transparent paper drawstring locking device for packaging machine according to claim 1, characterized in that: The distance between the second end of the first sector-shaped locking plate and the second end of the second sector-shaped locking plate and the draw tape is 1 nm.

3. The transparent paper drawstring locking device for packaging machine according to claim 1, characterized in that: The first sector-shaped locking plate and the second sector-shaped locking plate are both provided with a first mounting hole; The locking assembly also includes a connecting plate, and both ends of the connecting plate are respectively provided with pins, and the pins are inserted into the first mounting holes.

4. The transparent paper drawstring locking device for packaging machine according to claim 1, characterized in that: The two ends of the top of the mounting plate are respectively provided with first waist-shaped holes, which extend along the length direction of the first fan-shaped locking plate, and the first end of the first fixing rod and the first end of the second fixing rod respectively pass through the first waist-shaped holes.

5. The transparent paper drawstring locking device for packaging machine according to claim 4, characterized in that: The fixing assembly further includes a first locking nut, which is respectively arranged and connected to the first end of the first fixing rod and the first end of the second fixing rod to fix the first fixing rod and the second fixing rod on the mounting plate.

6. The transparent paper drawstring locking device for packaging machine according to claim 1, characterized in that: The mounting plate also has a second waist-shaped hole, which is extended along the width direction of the first fan-shaped locking plate, and the first end of the limiting rod is arranged in the second waist-shaped hole.

7. The transparent paper drawstring locking device for packaging machine according to claim 6, characterized in that: The fixing assembly also includes a second locking nut, which is respectively arranged on the first end of the limiting rod and connected to fix the limiting rod on the mounting plate.

8. The transparent paper drawstring locking device for packaging machine according to claim 6, characterized in that: A limiting groove is arranged on the side wall of the first sector-shaped locking plate, the limiting groove is arranged corresponding to the second waist-shaped hole, and the second end of the limiting rod is located in the limiting groove.

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