Power traction mechanism of bag making machine

Abstract

The utility model discloses a power traction mechanism of a bag making machine, which comprises an upper-layer frame, a lower-layer frame, an upper-layer frame and a lower-layer frame, the lower frame is provided with a second conveyor belt acting on the bottom surface of the paper bag; the lifting drive can enable the first conveying belt to be close to or far away from the second conveying belt in the vertical direction; and the pressing assembly comprises a plurality of elastic components, a plurality of upper driven rollers and a plurality of pairs of vertical sliding blocks, the ends of the upper driven rollers are rotationally matched with the vertical sliding blocks, rod bodies act on the first conveying belt, and the elastic components are arranged on the upper-layer frame and can continuously provide downward sliding elastic force for the vertical sliding blocks. During discharging, the first conveying belt and the second conveying belt act on the top surface and the bottom surface of the paper bag correspondingly, so that traction of the paper bag is achieved, the contact area with the paper bag is increased through the double-conveying-belt structure, and the situation that the paper bag slips is reduced advantageously.

Description

Technical Field

[0001] The utility model relates to the technical field of bag-making machine discharging, in particular to a power traction mechanism of the bag-making machine. Background Art

[0002] Paper bags generally include double layers of kraft paper and honeycomb paper between the two layers of kraft paper. In the prior art, a single-layer conveyor belt is used at the discharge end of the bag making machine to act on the bottom surface of the paper bag to achieve the output of the finished product. This structure has the following disadvantages: the paper bag is prone to slipping on the conveyor belt due to insufficient friction, thereby affecting the discharge of the material. Utility Model Content

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

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

[0005] The power traction mechanism of the bag making machine comprises:

[0006] The upper frame is provided with a first conveyor belt acting on the top surface of the paper bag;

[0007] The lower frame is provided with a second conveyor belt acting on the bottom surface of the paper bag;

[0008] Lifting drive, the output end of which is in transmission connection with the upper frame, capable of making the first conveyor belt approach or move away from the second conveyor belt in the vertical direction;

[0009] The clamping assembly includes a plurality of elastic components, a plurality of upper driven rollers, and a plurality of pairs of vertical sliders. The vertical sliders are slidably matched with the upper frame and can slide up and down in the vertical direction. The ends of the upper driven rollers are rotationally matched with the vertical sliders, and the rods act on the first conveyor belt. The elastic components are arranged on the upper frame and can continuously provide elastic force for the vertical sliders to slide downward.

[0010] Preferably, the upper frame is provided with a plurality of vertical slide grooves along the length direction of the first conveyor belt, the vertical slide groove is provided with an avoidance groove on the side close to the first conveyor belt, the vertical slider is slidably matched with the vertical slide groove, the avoidance groove is used to avoid the upper driven roller, the bottom end of the elastic component is abutted against the top end of the vertical slider, and the top end is abutted against the inner top wall of the vertical slide groove.

[0011] Preferably, it also includes a plurality of first screw rods, which correspond to the elastic components one by one, are threadedly matched with the upper frame, and the bottom ends of the first screw rods pass through the inner top wall of the vertical slide groove and abut against the top end of the elastic component.

[0012] Preferably, the elastic component is a cylindrical helical compression spring, the top and bottom ends of which are respectively ground flat, and can abut against the top end of the vertical slider and the bottom end of the first screw rod.

[0013] Preferably, it also includes:

[0014] The guide column has its bottom end fixed to the top of the lower frame and a support plate at its top. The lifting drive is a cylinder arranged on the support plate, and its piston rod is fixed to the upper frame. The upper frame is slidably matched with the guide column.

[0015] Preferably, it also includes:

[0016] The guide sleeve is fixed on the top of the upper frame. The upper frame is provided with a through hole in the vertical direction for the guide column to pass through. The guide sleeve is coaxially arranged with the through hole and slidably matched with the guide column.

[0017] Preferably, it also includes:

[0018] a first anti-slip layer, covering the outer surface of the first conveyor belt and capable of acting on the top surface of the paper bag;

[0019] The second anti-slip layer covers the outer surface of the second conveyor belt and can act on the bottom surface of the paper tape.

[0020] Preferably, the first anti-slip layer is a first silicone sheet pasted on the first conveyor belt, and the thickness of the first silicone sheet is 1-2 mm; the second anti-slip layer is a second silicone sheet pasted on the second conveyor belt, and the thickness of the second silicone sheet is 1-2 mm.

[0021] Preferably, it also includes:

[0022] A first upper rotating roller is rotatably disposed on the upper frame and has an upper gear at the end thereof;

[0023] A first lower rotating roller is rotatably disposed on the lower frame and has a lower gear at the end thereof;

[0024] A motor is arranged on the lower frame, the output end of which is connected to the first lower roller by transmission, and the upper gear is meshed with the lower gear for transmission;

[0025] A second upper roller is rotatably disposed on the upper frame, one end of the first conveyor belt is connected to the first upper roller, and the other end of the first conveyor belt is connected to the second upper roller;

[0026] The second lower rotating roller is rotatably arranged on the lower frame, and one end of the second conveyor belt is connected to the first lower rotating roller, and the other end is connected to the second lower rotating roller.

[0027] Preferably, it also includes:

[0028] A pair of first transverse sliders, the upper frame is provided with corresponding first transverse slots, the first transverse sliders are slidably matched with the first transverse slots, and the two ends of the second upper rotating rollers are respectively rotatably matched with the first transverse sliders;

[0029] An upper screw rod, which passes through the first transverse sliding groove, is threadably matched with the upper frame, and acts on the first transverse sliding block;

[0030] A pair of second transverse sliders, the lower frame is provided with corresponding second transverse slots, the second transverse sliders are slidably matched with the second transverse slots, and the two ends of the second lower rotating roller are respectively rotatably matched with the second transverse sliders;

[0031] The lower screw rod passes through the second transverse sliding groove, cooperates with the thread of the lower frame, and acts on the second transverse sliding block.

[0032] The beneficial effects of the utility model are as follows: when discharging materials, the first conveyor belt and the second conveyor belt are respectively used to act on the top surface and the bottom surface of the paper bag, so as to achieve traction of the paper bag, and the contact area with the paper bag is increased by the double conveyor belt structure, which is beneficial to reduce the slippage of the paper bag; on the other hand, the clamping component is used to act on the first conveyor belt, and the elastic force of the elastic component can keep the clamping force on the paper bag balanced, reducing the adverse problems caused by uneven clamping force; the lifting drive is used to control the upper frame to move up and down relative to the lower frame, so as to achieve the purpose of rapid changeover, which is beneficial to improve the scope of application of the utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model;

[0034] Figure 2 This is an exploded view of the components of an embodiment of the present invention.

[0035] As shown in the figure:

[0036] 1-upper frame, 11-first conveyor belt, 12-vertical slide, 121-avoidance groove, 13-guide sleeve, 14-first upper roller, 141-upper gear, 15-second upper roller, 16-first transverse slider, 17-first transverse slide, 18-upper screw;

[0037] 2-lower frame, 21-second conveyor belt, 22-guide column, 221-support plate, 23-first lower rotating roller, 231-lower gear, 24-motor, 25-second lower rotating roller, 26-second transverse slider, 27-second transverse slide groove, 28-lower screw;

[0038] 3-Lifting drive;

[0039] 4- clamping assembly, 41- elastic component, 42- upper driven roller, 43- vertical slider, 44- first screw. DETAILED DESCRIPTION

[0040] 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.

[0041] See also Figure 1-Figure 2 In this embodiment, the power traction mechanism of the bag making machine includes:

[0042] The upper frame 1 is provided with a first conveyor belt 11 acting on the top surface of the paper bag;

[0043] The lower frame 2 is provided with a second conveyor belt 21 acting on the bottom surface of the paper bag;

[0044] A lifting drive 3, the output end of which is in transmission connection with the upper frame 1 and can make the first conveyor belt 11 approach or move away from the second conveyor belt 21 in the vertical direction;

[0045] The clamping assembly 4 includes a plurality of elastic components 41, a plurality of upper driven rollers 42, and a plurality of pairs of vertical sliders 43. The vertical sliders 43 are slidably matched with the upper frame 1 and can slide up and down in the vertical direction. The ends of the upper driven rollers 42 are rotationally matched with the vertical sliders 43, and the rods act on the first conveyor belt 11. The elastic components 41 are arranged on the upper frame 1 and can continuously provide elastic force for the vertical sliders 43 to slide downward.

[0046] In this embodiment, before work or when changing the type (the type of paper bag), the upper frame 1 is controlled to rise relative to the lower frame 2 by the lifting drive 3, so that the gap between the first conveyor belt 11 and the second conveyor belt 21 is opened, and the residual paper bags between them are cleaned, and finally the distance of the first conveyor belt 11 descending and resetting is controlled according to the thickness of the paper bags to be conveyed. Specifically, the upper frame 1 and the lower frame 2 respectively include a left guard plate and a right guard plate that are arranged opposite to each other, and the first conveyor belt 11 and the second conveyor belt 21 are located between the left and right guard plates. Furthermore, a bottom bracket is also included, which is arranged at the bottom of the lower frame 2 and is used to support the traction mechanism of this embodiment. During discharging, the first conveyor belt 11 and the second conveyor belt 21 are respectively used to act on the top and bottom surfaces of the paper bag, so as to achieve traction of the paper bag. The double conveyor belt structure increases the contact area with the paper bag, which is beneficial to reduce the slippage of the paper bag. On the other hand, the clamping component 4 is used to act on the first conveyor belt 11, and the elastic force of the elastic component 41 can keep the clamping force on the paper bag balanced, thereby reducing the adverse problems caused by uneven clamping force. The lifting drive 3 is used to control the upper frame 1 to move up and down relative to the lower frame 2, so as to achieve the purpose of rapid changeover, which is beneficial to improve the scope of application of the utility model.

[0047] Preferably, the upper frame 1 is provided with a plurality of vertical slide grooves 12 along the length direction of the first conveyor belt 11, and the vertical slide groove 12 is provided with an avoidance groove 121 on the side close to the first conveyor belt 11. The vertical slider 43 slides in cooperation with the vertical slide groove 12, and the avoidance groove 121 is used to avoid the upper driven roller 42, and the bottom end of the elastic component 41 abuts against the top end of the vertical slider 43, and the top end abuts against the inner top wall of the vertical slide groove 12.

[0048] In this embodiment, the elastic component 41 acts on the vertical slider 43 to ensure the stability of the paper bag traction while reducing the occurrence of paper bag crushing or loose compression. Specifically, it also includes a lower driven roller rotatably arranged on the lower frame 2, and the lower driven roller acts on the second conveyor belt 21.

[0049] Preferably, it also includes a plurality of first screw rods 44, which correspond one to one with the elastic component 41, and the first screw rods 44 are threadedly matched with the upper frame 1, and the bottom ends of the first screw rods 44 pass through the inner top wall of the vertical slide groove 12 and abut against the top end of the elastic component 41.

[0050] In this embodiment, the maximum deformation amount of the elastic component 41 is adjusted by twisting the first screw 44, so as to adapt to paper bags of more thickness sizes.

[0051] Preferably, the elastic component 41 is a cylindrical helical compression spring, the top and bottom ends of which are respectively ground flat, and can abut against the top end of the vertical slider 43 and the bottom end of the first screw rod 44 .

[0052] Preferably, it also includes:

[0053] The guide column 22 has its bottom end fixed to the top of the lower frame 2 and a support plate 221 at its top. The lifting drive 3 is a cylinder arranged on the support plate 221 and its piston rod is fixed to the upper frame 1. The upper frame 1 is slidably matched with the guide column 22.

[0054] In this embodiment, the guide pillars 22 are used to improve the stability of the upper frame 1 when it is lifted up and down.

[0055] Preferably, it also includes:

[0056] The guide sleeve 13 is fixed to the top of the upper frame 1 . The upper frame 1 is provided with a through hole in the vertical direction for the guide column 22 to pass through. The guide sleeve 13 is coaxially arranged with the through hole and slidably cooperates with the guide column 22 .

[0057] In this embodiment, the guide sleeve 13 is a ball guide sleeve 13, which is helpful to reduce the friction when the upper frame 1 is raised or lowered.

[0058] Preferably, it also includes:

[0059] A first anti-slip layer (not shown in the figure), covering the outer surface of the first conveyor belt 11 and capable of acting on the top surface of the paper bag;

[0060] The second anti-slip layer (not shown in the figure) covers the outer surface of the second conveyor belt 21 and can act on the bottom surface of the paper tape.

[0061] In this embodiment, a first anti-skid layer (not shown in the figure) is used to increase the friction on the top surface of the paper bag, and a second anti-skid layer (not shown in the figure) is used to increase the friction on the bottom surface of the paper bag, thereby further reducing the slippage of the paper bag.

[0062] Preferably, the first anti-slip layer (not shown in the figure) is a first silicone sheet pasted on the first conveyor belt 11, and the thickness of the first silicone sheet is 1-2 mm; the second anti-slip layer (not shown in the figure) is a second silicone sheet pasted on the second conveyor belt 21, and the thickness of the second silicone sheet is 1-2 mm. Further, the situation of paper bags being crushed is reduced.

[0063] Preferably, it also includes:

[0064] A first upper rotating roller 14 is rotatably disposed on the upper frame 1 and has an upper gear 141 at its end;

[0065] A first lower rotating roller 23 is rotatably disposed on the lower frame 2, and a lower gear 231 is disposed at the end thereof;

[0066] The motor 24 is disposed on the lower frame 2, the output end of which is in transmission connection with the first lower rotating roller 23, and the upper gear 141 is meshed with the lower gear 231 for transmission;

[0067] A second upper roller 15 is rotatably disposed on the upper frame 1, one end of the first conveyor belt 11 is connected to the first upper roller 14, and the other end is connected to the second upper roller 15;

[0068] The second lower rotating roller 25 is rotatably disposed on the lower frame 2 . One end of the second conveyor belt 21 is connected to the first lower rotating roller 23 , and the other end is connected to the second lower rotating roller 25 .

[0069] In this embodiment, a synchronous belt is also included, and the output shaft of the motor 24 is transmission-connected to the first lower rotating roller 23 via the synchronous belt.

[0070] Preferably, it also includes:

[0071] A pair of first transverse sliders 16, the upper frame 1 is provided with corresponding first transverse slots 17, the first transverse sliders 16 are slidably matched with the first transverse slots 17, and the two ends of the second upper rotating roller 15 are respectively rotatably matched with the first transverse sliders 16;

[0072] An upper screw rod 18 passes through the first transverse sliding groove 17, is threadably engaged with the upper frame 1, and acts on the first transverse sliding block 16;

[0073] A pair of second transverse sliders 26, the lower frame 2 is provided with corresponding second transverse slots 27, the second transverse sliders 26 are slidably matched with the second transverse slots 27, and the two ends of the second lower rotating roller 25 are respectively rotatably matched with the second transverse sliders 26;

[0074] The lower screw rod 28 passes through the second transverse sliding groove 27, is threadedly engaged with the lower frame 2, and acts on the second transverse slider 26. In this embodiment, the sliding distance of the first transverse slider 16 is limited by screwing the upper screw rod 18, thereby adjusting the interval between the first upper rotating roller 14 and the second rotating roller, so as to achieve the effect of adjusting the tightness of the first conveyor belt 11; the sliding distance of the second transverse slider 26 is limited by screwing the lower screw rod 28, thereby adjusting the interval between the first lower rotating roller 23 and the second lower rotating roller 25, so as to achieve the effect of adjusting the tightness of the second conveyor belt 21.

[0075] 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 power traction mechanism of the bag making machine is characterized by: include: The upper frame is provided with a first conveyor belt acting on the top surface of the paper bag; The lower frame is provided with a second conveyor belt acting on the bottom surface of the paper bag; Lifting drive, the output end of which is in transmission connection with the upper frame, capable of making the first conveyor belt approach or move away from the second conveyor belt in the vertical direction; The clamping assembly includes a plurality of elastic components, a plurality of upper driven rollers, and a plurality of pairs of vertical sliders. The vertical sliders are slidably matched with the upper frame and can slide up and down in the vertical direction. The ends of the upper driven rollers are rotationally matched with the vertical sliders, and the rods act on the first conveyor belt. The elastic components are arranged on the upper frame and can continuously provide elastic force for the vertical sliders to slide downward.

2. The power traction mechanism of the bag making machine according to claim 1, characterized in that: The upper frame is provided with a plurality of vertical slide grooves along the length direction of the first conveyor belt, and the vertical slide groove is provided with an avoidance groove on the side close to the first conveyor belt. The vertical slider is slidably matched with the vertical slide groove, and the avoidance groove is used to avoid the upper driven roller. The bottom end of the elastic component abuts against the top end of the vertical slider, and the top end abuts against the inner top wall of the vertical slide groove.

3. The power traction mechanism of the bag making machine according to claim 2, characterized in that: It also includes a plurality of first screw rods, which correspond to the elastic components one by one, are threadedly matched with the upper frame, and have bottom ends that penetrate the inner top wall of the vertical slide groove and abut against the top of the elastic component.

4. The power traction mechanism of the bag making machine according to claim 3, characterized in that: The elastic component is a cylindrical helical compression spring, the top and bottom ends of which are respectively ground flat, and can abut against the top end of the vertical slider and the bottom end of the first screw rod.

5. The power traction mechanism of the bag making machine according to claim 1, characterized in that: Also includes: The guide column has its bottom end fixed to the top of the lower frame and a support plate at its top. The lifting drive is a cylinder arranged on the support plate, and its piston rod is fixed to the upper frame. The upper frame is slidably matched with the guide column.

6. The power traction mechanism of the bag making machine according to claim 5, characterized in that: Also includes: The guide sleeve is fixed on the top of the upper frame. The upper frame is provided with a through hole in the vertical direction for the guide column to pass through. The guide sleeve is coaxially arranged with the through hole and slidably matched with the guide column.

7. The power traction mechanism of the bag making machine according to claim 1, characterized in that: Also includes: a first anti-slip layer, covering the outer surface of the first conveyor belt and capable of acting on the top surface of the paper bag; The second anti-slip layer covers the outer surface of the second conveyor belt and can act on the bottom surface of the paper tape.

8. The power traction mechanism of the bag making machine according to claim 7, characterized in that: The first anti-slip layer is a first silicone sheet adhered to the first conveyor belt, and the thickness of the first silicone sheet is 1-2 mm; the second anti-slip layer is a second silicone sheet adhered to the second conveyor belt, and the thickness of the second silicone sheet is 1-2 mm.

9. The power traction mechanism of the bag making machine according to claim 1, characterized in that: Also includes: A first upper rotating roller is rotatably disposed on the upper frame and has an upper gear at the end thereof; A first lower rotating roller is rotatably disposed on the lower frame and has a lower gear at the end thereof; A motor is arranged on the lower frame, the output end of which is connected to the first lower roller by transmission, and the upper gear is meshed with the lower gear for transmission; A second upper roller is rotatably disposed on the upper frame, one end of the first conveyor belt is connected to the first upper roller, and the other end of the first conveyor belt is connected to the second upper roller; The second lower rotating roller is rotatably arranged on the lower frame, and one end of the second conveyor belt is connected to the first lower rotating roller, and the other end is connected to the second lower rotating roller.

10. The power traction mechanism of the bag making machine according to claim 9, characterized in that: Also includes: A pair of first transverse sliders, the upper frame is provided with corresponding first transverse slots, the first transverse sliders are slidably matched with the first transverse slots, and the two ends of the second upper rotating rollers are respectively rotatably matched with the first transverse sliders; An upper screw rod, which passes through the first transverse sliding groove, cooperates with the thread of the upper frame, and acts on the first transverse sliding block; A pair of second transverse sliders, the lower frame is provided with corresponding second transverse slots, the second transverse sliders are slidably matched with the second transverse slots, and the two ends of the second lower rotating roller are respectively rotatably matched with the second transverse sliders; The lower screw rod passes through the second transverse sliding groove, cooperates with the thread of the lower frame, and acts on the second transverse sliding block.

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