Sealing tape pasting mechanism of bag making machine

Abstract

The utility model discloses a sealing tape pasting mechanism of a bag making machine, which comprises a conveying component, a sealing tape pasting component and a sealing tape pasting component, the sliding assembly is provided with an assembling plate and can slide relative to the paper bag in the X-axis direction; the discharging assembly comprises a first unwinding structure and a belt pressing wheel which are arranged on the assembling plate, the first unwinding structure can drive a material head of a sealing belt material roll to move to the belt pressing wheel, the belt pressing wheel acts on the top face of a sealing belt, and the bottom face of the sealing belt is made to adhere to an opening of a paper bag; and the tightening assembly is arranged on the assembling plate, acts on the sealing belt and can tighten or loosen the sealing belt located between the first unwinding structure and the belt pressing wheel. The feeding end of the conveying assembly is in butt joint with the discharging end of the folding device, the folded paper bag is conveyed to the position below a pressing belt wheel of the discharging assembly, the pressing belt wheel acts on a sealing belt, the sealing belt is pasted to an opening of the paper bag, then personnel investment is reduced, and production efficiency can be improved easily.

Description

Technical Field

[0001] The utility model relates to the technical field of paper bag sealing, in particular to a sealing belt sticking mechanism for a bag making machine. Background Art

[0002] In the production of kraft paper bags, one of the processes is to symmetrically bend three layers of paper (double-layer kraft paper and honeycomb paper between two kraft papers) and then seal them with sealing tape. In the prior art, technicians take the symmetrically bent paper bags out of the bending equipment and then stick the sealing tape on the opening of the paper bags. This method has the following disadvantages: high labor cost and low work efficiency. Utility Model Content

[0003] In order to overcome the shortcomings and deficiencies in the prior art, the utility model aims to provide a sealing tape sticking mechanism for a bag making machine.

[0004] To achieve the above purpose, the technical solution of the utility model is as follows:

[0005] The sealing tape sticking mechanism of the bag making machine includes:

[0006] A conveying assembly having a conveying surface capable of acting on the paper bag along the Y-axis direction;

[0007] A sliding assembly having a mounting plate capable of sliding relative to the paper bag along an X-axis direction;

[0008] The unwinding assembly includes a first unwinding structure and a belt-pressing wheel provided on the assembly plate, wherein the first unwinding structure can drive the material head of the sealing tape roll to move to the belt-pressing wheel, and the belt-pressing wheel acts on the top surface of the sealing tape and makes its bottom surface stick to the opening of the paper bag;

[0009] The tensioning component is arranged on the assembly plate and acts on the sealing belt to tighten or loosen the sealing belt between the first unwinding structure and the belt pressing wheel.

[0010] Preferably, the elastic component comprises:

[0011] An upper roller assembly, comprising at least two first rollers, wherein the first rollers are rotatably fixed on the assembly plate;

[0012] The lower roller assembly includes a lifting seat, a second roller and a tension drive. The lifting seat is slidably matched with the assembly plate. The second roller is rotatably arranged on the lifting seat. The output end of the tension drive is transmission-connected with the lifting seat and can drive the second roller to move relative to the first roller.

[0013] Preferably, it also includes:

[0014] An avoidance notch is provided on the assembly plate;

[0015] A protrusion is provided on a side of the lifting seat away from the second roller and is slidably matched with the avoidance notch;

[0016] Three proximity sensors are arranged at equal intervals from bottom to top on one side of the avoidance gap and act on the convex block;

[0017] The information processing component, the tension and release drive is electrically connected to an external power source through the information processing component, and the three proximity sensors are respectively connected to the information processing component with electrical signals.

[0018] Preferably, the tension and relaxation drive comprises:

[0019] A motor, arranged on the assembly plate;

[0020] A screw rod, one end of which is transmission-connected to the motor, and the other end of which is threadedly engaged with the lifting seat;

[0021] A vertical guide rail is arranged on the assembly plate and is slidably matched with the lifting seat.

[0022] Preferably, the sliding assembly further comprises:

[0023] A frame, which spans the conveying assembly in the X-axis direction and is provided with a linear guide rail arranged along the X-axis direction, and the assembly plate is slidably matched with the linear guide rail;

[0024] The sliding drive has an output end that is drivingly connected to the assembly plate, and can drive the belt pressing wheel to move relative to the opening of the paper bag.

[0025] Preferably, it also includes:

[0026] The linear bearing is a cylindrical rod-shaped body, and the linear bearing is arranged on the assembly plate and slidingly cooperates with the linear guide.

[0027] Preferably, the sliding drive comprises:

[0028] The screw has an axis parallel to the X-axis, an inner end of which is threadedly matched with the assembly plate, an outer end of which is assembled with the frame, and a hand wheel is provided at the end thereof.

[0029] Preferably, it also includes:

[0030] The second unloading structure is arranged on the assembly plate and can drive the material head of the sealing tape roll to move to the tape pressing wheel.

[0031] Preferably, it also includes:

[0032] The hot melt glue gun is arranged on the assembly plate and located at the discharge end of the elastic component, and can spray hot melt glue on the bottom surface of the sealing tape.

[0033] Preferably, it also includes:

[0034] A first idler wheel, disposed on the assembly plate and located between the first unwinding structure and the tensioning assembly;

[0035] A second idler wheel, disposed on the assembly plate and located between the tensioner assembly and the hot melt glue gun;

[0036] The third idler wheel is arranged on the assembly plate and is located between the hot melt glue gun and the belt pressing wheel.

[0037] The beneficial effects of the utility model are as follows: the feeding end of the conveying component is docked with the discharging end of the folding device, and the folded paper bag is conveyed to the bottom of the pressure wheel of the unwinding component. The pressure wheel acts on the sealing belt to make it stick to the opening of the paper bag, thereby reducing the input of personnel and facilitating improving production efficiency. The sliding assembly plate is used to drive the pressure wheel to slide along the X-axis direction (and the distance from the folding line of the paper bag to the opening), so that it is suitable for sealing paper bags of more sizes, which is conducive to widening the scope of application. The elastic component is used to act on the sealing belt to tighten or relax the sealing belt between the first unwinding structure and the pressure wheel. When the sealing belt is tightened, the conveying speed of the sealing belt matches the unwinding speed of the first unwinding structure. When the sealing belt is relaxed, the conveying speed of the sealing belt matches the feeding speed of the conveying component, thereby reducing the situation of loose adhesion caused by the mismatch between the unwinding speed and the feeding speed, which is conducive to improving the adhesion quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 A side view of a schematic diagram of the structure of an embodiment of the utility model;

[0039] Figure 2 This is another side perspective of the structural schematic diagram of the embodiment of the utility model;

[0040] As shown in the figure:

[0041] 1-sliding assembly, 11-assembly plate, 111-avoidance gap, 112-proximity sensor, 12-frame, 121-linear guide, 122-linear bearing, 13-sliding drive, 131-screw, 132-handwheel, 14-hot melt glue gun, 15-first idler wheel, 16-second idler wheel, 17-third idler wheel;

[0042] 2-unwinding assembly, 21-first unwinding structure, 22-pressing wheel, 23-second unwinding structure;

[0043] 3-elastic assembly, 31-first roller, 32-second roller, 33-lifting seat, 331-bump. DETAILED DESCRIPTION

[0044] The following is a detailed explanation of the implementation of the present invention in conjunction with the accompanying drawings. The accompanying drawings are for reference and illustration only and do not constitute a limitation on the scope of patent protection of the present invention.

[0045] See also Figure 1-Figure 2 In this embodiment, the sealing tape sticking mechanism of the bag making machine includes:

[0046] A conveying assembly having a conveying surface capable of acting on the paper bag along the Y-axis direction;

[0047] The sliding assembly 1 has a mounting plate and can slide relative to the paper bag along the X-axis direction;

[0048] The unwinding assembly 2 includes a first unwinding structure 21 and a belt-pressing wheel 22 provided on the assembly plate, wherein the first unwinding structure 21 can drive the material head of the sealing tape roll to move to the belt-pressing wheel 22, and the belt-pressing wheel 22 acts on the top surface of the sealing tape and makes its bottom surface stick to the opening of the paper bag;

[0049] The tensioning component 3 is disposed on the assembly plate and acts on the sealing belt to tighten or loosen the sealing belt between the first unwinding structure 21 and the belt pressing wheel 22 .

[0050] In this embodiment, the conveying assembly is a mesh belt conveying device (not shown in the figure). The feeding end of the mesh belt conveying device is connected to the discharging end of the folding device of the previous station, and can convey the folded paper tape to the bottom of the belt pressing wheel 22. The Y-axis direction of this application is the width direction of the paper bag, and the X-axis direction refers to the length direction of the paper bag (and the distance between the folding line and the opening of the paper bag). Specifically, when the sealing tape is pasted, a cutting structure (not shown in the figure) can be added to the mechanism of this embodiment to cut the sealing tape, and a cutting structure can also be added to the mechanism other than this embodiment to cut the sealing tape. The feeding end of the conveying assembly is connected to the discharging end of the folding device, and the folded paper bag is conveyed to the bottom of the belt pressing wheel 22 of the discharge assembly 2. The belt pressing wheel 22 acts on the sealing tape to make it stick to the opening of the paper bag, thereby reducing personnel input and helping to improve production efficiency. The slidable assembly plate is used to drive the belt-pressing wheel 22 to slide along the X-axis direction (and the distance from the folding line of the paper bag to the opening), so that it is applicable to the sealing of paper bags of more sizes, which is conducive to widening the scope of application. The elastic component 3 is used to act on the sealing belt to tighten or loosen the sealing belt located between the first unwinding structure 21 and the belt-pressing wheel 22. When the sealing belt is tightened, the conveying speed of the sealing belt matches the unwinding speed of the first unwinding structure 21. When the sealing belt is loosened, the conveying speed of the sealing belt matches the feeding speed of the conveying component, thereby reducing the situation of loose adhesion caused by the mismatch between the unwinding speed and the feeding speed, which is conducive to improving the adhesion quality.

[0051] Preferably, the elastic component 3 comprises:

[0052] An upper roller assembly, comprising at least two first rollers 31, wherein the first rollers 31 are rotatably fixed on the assembly plate;

[0053] The lower roller assembly includes a lifting seat 33, a second roller 32 and a tension drive. The lifting seat 33 is slidably matched with the assembly plate. The second roller 32 is rotatably arranged on the lifting seat 33. The output end of the tension drive is transmission-connected with the lifting seat 33 and can drive the second roller 32 to move relative to the first roller 31.

[0054] In this embodiment, there are five first rollers 31 and four second rollers 32. The material head of the sealing tape passes through the first roller 31, the second roller 32, the first roller 31, the second roller 32, etc. in sequence, and circulates up and down in sequence, so that a part of the sealing tape is folded between the upper roller group and the lower roller group. The lifting seat 33 rises and drives the four second rollers 32 to move upward (close to the end of the first roller 31) synchronously, so that the aforementioned part of the sealing tape is loosened. At this time, one end of the sealing tape is attached to the paper bag. Under the action of the pressure roller 22, the paper bag can be output according to the actual moving speed of the paper bag, avoiding the situation that the sealing tape is not properly attached and the sealing tape is tilted due to the mismatch between the unloading speed of the sealing tape and the conveying speed of the paper bag. The lifting seat 33 descends and drives the four second rollers 32 to move upward (away from the end of the first roller 31) synchronously, so that the aforementioned part of the sealing tape is tightened. At this time, the sealing tape is conveyed to the pressure roller 22 according to the unloading speed of the first unwinding structure 21.

[0055] Preferably, it also includes:

[0056] An avoidance notch 111 is provided on the assembly plate;

[0057] A protrusion 331 is provided on a side of the lifting seat 33 away from the second roller 32 and is slidably matched with the avoidance notch 111;

[0058] Three proximity sensors 112 are arranged at one side of the avoidance gap 111 at equal intervals from bottom to top, and act on the protrusion 331;

[0059] Information processing component, the tension and release drive is electrically connected to an external power source through the information processing component, and the three proximity sensors 112 are respectively connected to the information processing component with electrical signals.

[0060] In this embodiment, the first proximity sensor 112 is disposed at the bottom of the avoidance notch 111 and is used to detect whether the bump 331 is reset (in this state, the sealing tape is in a taut state), so as to prevent the first unwinding structure 21 from feeding the sealing tape in a non-taut state, and reduce the accumulation of the sealing tape. The second proximity sensor is disposed in the middle of the avoidance notch 111, and the third proximity sensor 112 is disposed at the top of the avoidance notch 111. The aforementioned two sensors are both used to detect whether the bump 331 moves up and down (in this state, the sealing tape is in a relaxed state). The relaxed sealing tape is pulled by the paper bag being conveyed, and is pasted under the action of the pressing wheel 22.

[0061] Preferably, the tension driving (not marked in the figure) includes:

[0062] A motor, disposed on the assembly plate;

[0063] A lead screw, one end of which is in transmission connection with the motor, and the other end of which is in threaded cooperation with the lifting seat 33;

[0064] A vertical guide rail, disposed on the assembly plate and in sliding cooperation with the lifting seat 33.

[0065] In this embodiment, the motor is electrically connected to the information processing component and stops working according to the lifting stroke of the lifting seat 33. The vertical guide rail is used to improve the smoothness of lifting.

[0066] Preferably, the sliding assembly 1 further includes:

[0067] A frame 12, spanning across the conveying component in the X-axis direction, provided with a linear guide rail 121 arranged in the X-axis direction, and the assembly plate is in sliding cooperation with the linear guide rail 121;

[0068] A sliding drive 13, the output end of which is in transmission connection with the assembly plate and can drive the pressing wheel 22 to move relative to the opening of the paper bag.

[0069] In this embodiment, the frame is in a U shape with the opening facing the conveying component. By the action of the sliding drive 13 on the assembly plate, the assembly plate drives the unwinding component 2 to move relative to the opening of the paper bag, so as to be adapted to paper bags with more length dimensions.

[0070] Preferably, it further includes:

[0071] A linear bearing 122, the linear guide rail 121 is a cylindrical rod-shaped body, and the linear bearing 122 is disposed on the assembly plate and in sliding cooperation with the linear guide rail 121.

[0072] In this embodiment, there are two linear guide rails 121 in total, and two linear bearings 122 are disposed on the assembly plate, which is beneficial to improving the smoothness of the assembly movement.

[0073] Preferably, the sliding drive 13 comprises:

[0074] The screw rod 131 has an axis parallel to the X-axis, an inner end of which is threadedly matched with the assembly plate, an outer end of which is assembled with the frame 12, and a hand wheel 132 is provided at the end thereof.

[0075] In this embodiment, the hand wheel 132 is manually turned to drive the screw rod 131 to rotate and cooperate with the thread of the assembly plate, and the linear guide rail 121 is used to change the assembly plate to move linearly. The structure is simple and easy to operate.

[0076] Preferably, it also includes:

[0077] The second unloading structure 23 is disposed on the assembly plate and can drive the material head of the sealing tape roll to move to the tape pressing wheel 22 .

[0078] In this embodiment, a roll of sealing tape is placed on the first unwinding structure 21 and the second unwinding structure 23 respectively. When one roll of material is used up, the head of the other roll of material is docked with the pressure wheel 22, and then the equipment continues to run. Finally, the material ring of one roll of material is removed and a new roll of material is installed, thereby reducing the time occupied by material replacement.

[0079] Preferably, it also includes:

[0080] The hot melt glue gun 14 is arranged on the assembly plate and located at the discharge end of the elastic component 3, and can spray hot melt glue on the bottom surface of the sealing tape.

[0081] Preferably, it also includes:

[0082] A first idler wheel 15, disposed on the assembly plate, between the first unwinding structure 21 and the tensioning assembly 3;

[0083] A second idler wheel 16 is provided on the assembly plate and is located between the tensioning assembly 3 and the hot melt glue gun 14;

[0084] The third idler wheel 17 is disposed on the assembly plate and is located between the hot melt glue gun and the belt pressing wheel 22 .

[0085] In this embodiment, three types of idler wheels are used to improve the smoothness of sealing tape conveying.

[0086] The above disclosure is only a preferred embodiment of the present invention, which cannot be used to limit the scope of protection of the present invention. Therefore, equivalent changes made within the scope of the patent application of the present invention are still within the scope covered by the present invention.

Claims

1. The sealing tape sticking mechanism of the bag making machine is characterized by: include: A conveying assembly having a conveying surface capable of acting on the paper bag along the Y-axis direction; A sliding assembly having a mounting plate capable of sliding relative to the paper bag along an X-axis direction; The unwinding assembly includes a first unwinding structure and a belt-pressing wheel provided on the assembly plate, wherein the first unwinding structure can drive the material head of the sealing tape roll to move to the belt-pressing wheel, and the belt-pressing wheel acts on the top surface of the sealing tape and makes its bottom surface stick to the opening of the paper bag; The tensioning component is arranged on the assembly plate and acts on the sealing belt to tighten or loosen the sealing belt between the first unwinding structure and the belt pressing wheel.

2. The sealing tape sticking mechanism for a bag making machine according to claim 1, characterized in that: The elastic component comprises: An upper roller assembly, comprising at least two first rollers, wherein the first rollers are rotatably fixed on the assembly plate; The lower roller assembly includes a lifting seat, a second roller and a tension drive. The lifting seat is slidably matched with the assembly plate. The second roller is rotatably arranged on the lifting seat. The output end of the tension drive is transmission-connected with the lifting seat and can drive the second roller to move relative to the first roller.

3. The sealing tape sticking mechanism for a bag making machine according to claim 2, characterized in that: Also includes: An avoidance notch is provided on the assembly plate; A protrusion is provided on a side of the lifting seat away from the second roller and is slidably matched with the avoidance notch; Three proximity sensors are arranged at equal intervals from bottom to top on one side of the avoidance gap and act on the convex block; The information processing component, the tension and release drive is electrically connected to an external power source through the information processing component, and the three proximity sensors are respectively connected to the information processing component with electrical signals.

4. The sealing tape sticking mechanism for a bag making machine according to claim 3, characterized in that: The tension drive comprises: A motor, arranged on the assembly plate; A screw rod, one end of which is transmission-connected to the motor, and the other end of which is threadedly engaged with the lifting seat; A vertical guide rail is arranged on the assembly plate and is slidably matched with the lifting seat.

5. The sealing tape sticking mechanism for a bag making machine according to claim 1, characterized in that: The sliding assembly also includes: A frame, which spans the conveying assembly in the X-axis direction and is provided with a linear guide rail arranged along the X-axis direction, and the assembly plate is slidably matched with the linear guide rail; The sliding drive has an output end that is drivingly connected to the assembly plate, and can drive the belt pressing wheel to move relative to the opening of the paper bag.

6. The sealing tape sticking mechanism for a bag making machine according to claim 5, characterized in that: Also includes: The linear bearing is a cylindrical rod-shaped body, and the linear bearing is arranged on the assembly plate and slidingly cooperates with the linear guide.

7. The sealing tape sticking mechanism for a bag making machine according to claim 5, characterized in that: The sliding drive comprises: The screw has an axis parallel to the X-axis, an inner end of which is threadedly matched with the assembly plate, an outer end of which is assembled with the frame, and a hand wheel is provided at the end thereof.

8. The sealing tape sticking mechanism for a bag making machine according to claim 1, characterized in that: Also includes: The second unloading structure is arranged on the assembly plate and can drive the material head of the sealing tape roll to move to the tape pressing wheel.

9. The sealing tape sticking mechanism for a bag making machine according to claim 1, characterized in that: Also includes: The hot melt glue gun is arranged on the assembly plate and located at the discharge end of the elastic component, and can spray hot melt glue on the bottom surface of the sealing tape.

10. The sealing tape sticking mechanism for a bag making machine according to claim 9, characterized in that: Also includes: A first idler wheel, disposed on the assembly plate and located between the first unwinding structure and the tensioning assembly; A second idler wheel, disposed on the assembly plate and located between the tensioner assembly and the hot melt glue gun; The third idler wheel is arranged on the assembly plate and is located between the hot melt glue gun and the belt pressing wheel.

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