Bag ironing mechanism for bag making machine

Abstract

The utility model discloses a bag ironing mechanism for a bag making machine, which comprises a rack, a positioning mechanism is arranged on an upper lifting frame and a lower lifting frame, the positioning mechanism comprises a positioning frame I arranged at the lower end of the upper lifting frame, and a positioning frame II is arranged at the upper end of the lower lifting frame. Compared with the prior art, the plastic bag ironing device has the advantages that when the first ironing knife and the second ironing knife are close to each other to iron a bag, the first positioning frame and the second positioning frame are close to each other along with the upper lifting frame and the lower lifting frame, and the first ironing knife and the second ironing knife make contact with the plastic bag firstly; when the first positioning frame and the second positioning frame are close to each other to position the plastic bag, along with continuous relative movement of the upper lifting frame and the lower lifting frame, a spring can be extruded, extrusion elastic force is provided, the plastic bag is fixed more stably, after the plastic bag is clamped and positioned, the plastic bag is ironed by the first ironing knife and the second ironing knife more smoothly, and the bag ironing quality is better and more stable.

Description

Technical Field

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

[0002] Packaging bags refer to bags used to package various foods, making it convenient to transport and store goods during the production and circulation process. They are widely used in daily life and industrial production. Plastic film packaging bags need to be sealed and hot-processed during the production process.

[0003] The cam is fixedly mounted on the top of the fixing frame, and the cam shaft end is fixedly mounted on the fixing frame, and the cam shaft end passes through the lower surface of the fixing frame and is fixedly provided with a flange plate. The two ends of the upper surface of the fixing plate are fixedly provided with a first limiting rod, the upper end of the first limiting rod slides through the upper surface of the connecting plate, and the outer surface of the first limiting rod is sleeved with a return spring. The middle part of the lower surface of the connecting plate is fixedly provided with two fixing plates, and a worm is provided between the two fixing plates through a rotating shaft; by designing the worm gear and the worm, the hand wheel can be controlled to rotate the slide cylinder, and the rotation of the slide cylinder drives the hexagonal prism slider and the screw rod to rotate, and the screw rod is screwed into the flange plate thread to realize the fixed connection or disassembly of the flange plate and the connecting plate. Compared with the traditional flange bolt connection, there is no need to screw and fix them one by one with a wrench, which is more convenient and labor-saving, and greatly improves the efficiency of disassembling and assembling the hot knife.

[0004] In the prior art, when a plastic bag is ironed by a hot knife, the plastic bag will shrink when heated. There is no pressing and positioning mechanism for the plastic bag around the hot knife, which will cause wrinkles to appear on the plastic bag during pressing and ironing, affecting the ironing quality of the bag. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the above-mentioned defects and provide a bag-scalding mechanism for a bag-making machine.

[0006] In order to solve the above technical problems, the technical solution provided by the present invention is: a bag hotting mechanism for a bag making machine, comprising:

[0007] A frame, wherein support plates are fixedly connected to the middle of both sides of the upper end of the frame;

[0008] A top plate, the top plate being fixedly connected to the upper ends of the support plates at both ends;

[0009] A conveying mechanism is provided in the middle of the frame, wherein the middle of the frame is connected to a lower conveying roller for forward and backward rotation, and the lower ends between the support plates at both ends are connected to upper conveying rollers for forward and backward rotation;

[0010] A fixing plate, the fixing plate being fixedly connected to the lower middle end of the frame;

[0011] A pressing mechanism is provided in the middle of the upper end of the frame, and includes an upper lifting frame provided between the support plates at both ends, a first ironing knife is fixedly connected to the middle of the lower end of the upper lifting frame, and a lower lifting frame is provided in the middle of the frame, a second ironing knife is fixedly connected to the middle of the upper end of the lower lifting frame;

[0012] A lifting mechanism 1, wherein the lifting mechanism 1 is arranged on the upper lifting frame;

[0013] A second lifting mechanism, wherein the second lifting mechanism is arranged on the lower lifting frame;

[0014] A positioning mechanism is provided on the upper lifting frame and the lower lifting frame, and the positioning mechanism includes a first positioning frame provided at the lower end of the upper lifting frame, and a second positioning frame provided at the upper end of the lower lifting frame, wherein a pressure pad is fixedly connected to the lower end of the positioning frame and the upper end of the positioning frame;

[0015] The buffer mechanism is arranged on the positioning frame 1 and the positioning frame 2. The buffer mechanism includes a limiting column 1 fixedly connected to the front and rear sides of the upper end of the positioning frame 1. The upper end of the limiting column 1 passes through the upper lifting frame. The front and rear sides of the lower end of the positioning frame 2 are fixedly connected to the limiting column 2. The lower end of the limiting column 2 passes through the lower lifting frame. Springs are sleeved on the limiting column 1 and the limiting column 2.

[0016] As an improvement, the lifting mechanism 1 includes:

[0017] Cylinder 1, wherein the cylinder 1 is fixedly connected to the middle of the upper end of the top plate, and the lower end of the cylinder is fixedly connected to the upper end of the upper lifting frame;

[0018] The limiting sliding column 1 is fixedly connected to both sides of the upper end of the upper lifting frame, and the upper end of the limiting sliding column 1 passes through the top plate.

[0019] As an improvement, the second lifting mechanism includes:

[0020] Cylinder 2, wherein the cylinder 2 is fixedly connected to the middle of the lower end of the fixed plate, and the upper end of the cylinder 2 is fixedly connected to the lower end of the lower lifting frame;

[0021] The two limiting slide posts are fixedly connected to both sides of the lower end of the lower lifting frame, and the lower ends of the limiting slide posts pass through the fixed plate.

[0022] As an improvement, the spring at the upper end is arranged between the upper lifting frame and the positioning frame 1, and the spring at the lower end is arranged between the lower lifting frame and the positioning frame 2.

[0023] As an improvement, heat insulation grooves are provided at the front and rear ends of the upper lifting frame and the lower lifting frame.

[0024] The advantages of the present invention over the prior art are as follows: when the first and second ironing knives approach each other to iron a bag, the first and second positioning frames follow the upper and lower lifting frames to approach each other, contacting the plastic bag before the first and second ironing knives; when the first and second positioning frames approach each other to position the plastic bag, the upper and lower lifting frames continue to move relative to each other, squeezing the spring to provide squeezing elastic force, thereby fixing the plastic bag more stably; after the plastic bag is clamped and positioned, the first and second ironing knives iron the plastic bag more smoothly, and the quality of the ironed bag is better and more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 The utility model is a structural schematic diagram of a bag hotting mechanism for a bag making machine.

[0026] Figure 2 It is a right side sectional view of a bag hotting mechanism for a bag making machine according to the present invention.

[0027] Figure 3 This is a partial structural diagram of a bag-making machine hot bag mechanism. Figure 1 .

[0028] Figure 4 This is a partial structural diagram of a bag-making machine hot bag mechanism. Figure 2 .

[0029] Figure 5 This is a partial structural diagram of a bag-making machine hot bag mechanism. Figure 3 .

[0030] Figure 6 This is a partial structural diagram of a bag-making machine hot bag mechanism. Figure 4 .

[0031] As shown in the figure: 1. Frame; 2. Support plate; 3. Top plate; 4. Conveying mechanism; 41. Lower conveying roller; 42. Upper conveying roller; 5. Fixed plate; 6. Pressing mechanism; 61. Upper lifting frame; 62. Ironing knife 1; 63. Lower lifting frame; 64. Ironing knife 2; 7. Lifting mechanism 1; 71. Cylinder 1; 72. Limiting slide 1; 8. Lifting mechanism 2; 81. Cylinder 2; 82. Limiting slide 2; 9. Positioning mechanism; 91. Positioning frame 1; 92. Positioning frame 2; 93. Press pad; 10. Buffer mechanism; 101. Limiting column 1; 102. Limiting column 2; 103. Spring; 11. Heat insulation groove. DETAILED DESCRIPTION

[0032] The present invention will be described in further detail below with reference to the accompanying drawings.

[0033] A bag-scalding mechanism for a bag-making machine comprises a frame 1, wherein support plates 2 are fixedly connected to the middle of both sides of the upper end of the frame 1, and top plates 3 are fixedly connected to the upper ends of the support plates 2 at both ends.

[0034] A conveying mechanism 4 is provided in the middle of the frame 1. A lower conveying roller 41 is connected to the middle of the frame 1 for rotating back and forth. An upper conveying roller 42 is connected to the lower end between the support plates 2 at both ends for rotating back and forth. The plastic bags are moved through the transmission mechanism at the front and rear ends of the bag making machine. When the plastic bags pass through the frame 1, they pass between the upper conveying roller 42 and the lower conveying roller 41 for limited auxiliary conveying.

[0035] A fixing plate 5 is fixedly connected to the lower middle end of the frame 1.

[0036] A pressing mechanism 6 is provided in the middle of the upper end of the frame 1. The pressing mechanism 6 includes an upper lifting frame 61 provided between the support plates 2 at both ends. A first ironing knife 62 is fixedly connected to the middle of the lower end of the upper lifting frame 61. A lower lifting frame 63 is provided in the middle of the frame 1. A second ironing knife 64 is fixedly connected to the middle of the upper end of the lower lifting frame 63. Heat insulation grooves 11 are provided in the front and back of the upper ends of the upper lifting frame 61 and the lower lifting frame 63. The upper lifting frame 61 and the lower lifting frame 63 are made of heat insulation material, which can prevent the first ironing knife 62 and the second ironing knife 64 from transferring heat to the surrounding mechanisms. When the plastic bag passes between the upper conveying roller 42 and the lower conveying roller 41, it is located between the first ironing knife 62 and the second ironing knife 64.

[0037] A lifting mechanism 7 is provided on the upper lifting frame 61. The lifting mechanism 7 includes a cylinder 71 and a limiting slide 72. The cylinder 71 is fixedly connected to the middle of the upper end of the top plate 3, and the lower end of the cylinder 71 is fixedly connected to the upper end of the upper lifting frame 61. Two limiting slides 72 are fixedly connected to both sides of the upper end of the upper lifting frame 61. The upper ends of the limiting slides 72 pass through the top plate 3. The cylinder 71 can drive the upper lifting frame 61 to move up and down, thereby driving the hot knife 62 to move up and down.

[0038] A lifting mechanism 8 is provided on the lower lifting frame 63. The lifting mechanism 8 includes a cylinder 81 and a limiting slide 82. The cylinder 81 is fixedly connected to the middle of the lower end of the fixed plate 5. The upper end of the cylinder 81 is fixedly connected to the lower end of the lower lifting frame 63. Two limiting slides 82 are fixedly connected to both sides of the lower end of the lower lifting frame 63. The lower ends of the limiting slides 82 pass through the fixed plate 5. The cylinder 81 drives the lower lifting frame 63 to move up and down, thereby driving the hot knife 64 to move up and down.

[0039] Cylinder 1 71 and cylinder 2 81 drive the upper lifting frame 61 and the lower lifting frame 63 to move relative to each other, thereby driving the ironing knife 1 62 and the ironing knife 2 64 to move closer to each other to iron the plastic bag in the middle, and then drive the ironing knife 1 62 and the ironing knife 2 64 away from each other to move the plastic bag for the next ironing.

[0040] A positioning mechanism 9 is provided on the upper lifting frame 61 and the lower lifting frame 63. The positioning mechanism 9 includes a positioning frame 1 91 provided at the lower end of the upper lifting frame 61, and a positioning frame 2 92 provided at the upper end of the lower lifting frame 63. The lower end of the positioning frame 1 91 and the upper end of the positioning frame 2 92 are fixedly connected to a pressure pad 93. The pressure pad 93 contacts the plastic bag to prevent slipping. The positioning frame 1 91 and the positioning frame 2 92 move relative to each other following the upper lifting frame 61 and the lower lifting frame 63. When they approach each other, they contact the plastic bag before the ironing knife 1 62 and the ironing knife 2 64, and clamp the plastic bag for positioning. After positioning, the ironing knife 1 62 and the ironing knife 2 64 iron the plastic bag more smoothly, and the quality of the ironed bag is better and more stable.

[0041] A buffer mechanism 10 is provided on the positioning frame 1 91 and the positioning frame 2 92. The buffer mechanism 10 includes a limit column 101 fixedly connected to the front and rear sides of the upper end of the positioning frame 1 91. The upper end of the limit column 101 passes through the upper lifting frame 61. The front and rear sides of the lower end of the positioning frame 2 92 are fixedly connected to the limit column 2 102. The lower end of the limit column 2 102 passes through the lower lifting frame 63. Springs 103 are both sleeved on the limit column 101 and the limit column 2 102. The upper end spring 103 is set between the upper lifting frame 61 and the positioning frame 1 91, and the lower end spring 103 is set between the lower lifting frame 63 and the positioning frame 2 92.

[0042] When the first positioning frame 91 and the second positioning frame 92 are brought into contact with each other to position the plastic bag, the upper lifting frame 61 and the lower lifting frame 63 move relative to each other to squeeze the spring 103, providing a squeezing elastic force to fix the plastic bag more stably.

[0043] When the utility model is implemented, Figure 1-6 As shown, when in use, the plastic bag is moved by the transmission mechanism at the front and rear ends of the bag making machine. When the plastic bag passes through the frame 1, it passes between the upper conveying roller 42 and the lower conveying roller 41 for limited auxiliary conveying. When the plastic bag passes between the upper conveying roller 42 and the lower conveying roller 41, it is located between the ironing knife 1 62 and the ironing knife 2 64.

[0044] When ironing bags, the ironing blade 1 62 and the ironing blade 2 64 are heated in advance, and the cylinder 1 71 and the cylinder 2 81 are started synchronously to drive the upper lifting frame 61 and the lower lifting frame 63 to move relative to each other, thereby driving the ironing blade 1 62 and the ironing blade 2 64 to move closer to each other to iron the plastic bag in the middle, and then drive the ironing blade 1 62 and the ironing blade 2 64 away from each other to move the plastic bag for the next ironing.

[0045] When the ironing knife 1 62 and the ironing knife 2 64 approach each other to iron the bag, the positioning frame 1 91 and the positioning frame 2 move relative to each other following the upper lifting frame 61 and the lower lifting frame 63. When they approach each other, they contact the plastic bag before the ironing knife 1 62 and the ironing knife 2 64. When the positioning frame 1 91 and the positioning frame 2 approach each other to position the plastic bag, as the upper lifting frame 61 and the lower lifting frame 63 continue to move relative to each other, they will squeeze the spring 103, providing squeezing elastic force to fix the plastic bag more stably. After the plastic bag is clamped and positioned, the ironing knife 1 62 and the ironing knife 2 64 iron the plastic bag more smoothly, and the quality of the ironed bag is better and more stable.

[0046] The electrical components appearing in this article are all connected to an external main controller and 220V AC power, and the main controller can be a conventional known device that controls a computer, etc. The specific implementation method of this disclosure omits the detailed description of known functions and known components. To ensure the compatibility of the equipment, the operating methods used are consistent with the parameters of marketed equipment.

[0047] The above description of the present invention and its embodiments is non-limiting. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by the above, and does not deviate from the purpose of the present invention, without inventive design, a structure and embodiment similar to the technical solution should fall within the scope of protection of the present invention.

[0048] The information disclosed in this background technology section is only intended to enhance understanding of the overall background of the invention and should not be regarded as an admission or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art.

Claims

1. A bag-scalding mechanism for a bag-making machine, characterized in that: include: A frame (1), wherein support plates (2) are fixedly connected to the middle of both sides of the upper end of the frame (1); A top plate (3), the top plate (3) being fixedly connected to the upper ends of the two end support plates (2); A conveying mechanism (4), the conveying mechanism (4) is arranged in the middle of the frame (1), the middle of the frame (1) is connected to a lower conveying roller (41) for forward and backward rotation, and the lower ends between the support plates (2) at both ends are connected to an upper conveying roller (42) for forward and backward rotation; A fixing plate (5), the fixing plate (5) being fixedly connected to the middle lower end of the frame (1); A pressing mechanism (6), the pressing mechanism (6) is arranged in the middle of the upper end of the frame (1), the pressing mechanism (6) comprises an upper lifting frame (61) arranged between the two end support plates (2), a first ironing knife (62) is fixedly connected to the middle of the lower end of the upper lifting frame (61), a lower lifting frame (63) is arranged in the middle of the frame (1), and a second ironing knife (64) is fixedly connected to the middle of the upper end of the lower lifting frame (63); A lifting mechanism (7), wherein the lifting mechanism (7) is arranged on an upper lifting frame (61); A second lifting mechanism (8), wherein the second lifting mechanism (8) is arranged on the lower lifting frame (63); A positioning mechanism (9), the positioning mechanism (9) is arranged on the upper lifting frame (61) and the lower lifting frame (63), the positioning mechanism (9) includes a first positioning frame (91) arranged at the lower end of the upper lifting frame (61), a second positioning frame (92) is arranged at the upper end of the lower lifting frame (63), and a pressure pad (93) is fixedly connected to the lower end of the first positioning frame (91) and the upper end of the second positioning frame (92); A buffer mechanism (10) is provided on a positioning frame (91) and a positioning frame (92). The buffer mechanism (10) includes a limiting column (101) fixedly connected to the front and rear sides of the upper end of the positioning frame (91). The upper end of the limiting column (101) passes through the upper lifting frame (61). The front and rear sides of the lower end of the positioning frame (92) are fixedly connected to the limiting column (102). The lower end of the limiting column (102) passes through the lower lifting frame (63). The limiting column (101) and the limiting column (102) are both sleeved with springs (103).

2. The bag-scalding mechanism for a bag-making machine according to claim 1, characterized in that: The lifting mechanism (7) includes: Cylinder 1 (71), wherein the cylinder 1 (71) is fixedly connected to the middle of the upper end of the top plate (3), and the lower end of the cylinder 1 (71) is fixedly connected to the upper end of the upper lifting frame (61); A limiting slide column (72), wherein the two limiting slide columns (72) are fixedly connected to both sides of the upper end of the upper lifting frame (61), and the upper end of the limiting slide column (72) passes through the top plate (3).

3. The bag-scalding mechanism for a bag-making machine according to claim 1, characterized in that: The second lifting mechanism (8) includes: Cylinder 2 (81), said cylinder 2 (81) is fixedly connected to the middle of the lower end of the fixed plate (5), and the upper end of said cylinder 2 (81) is fixedly connected to the lower end of the lower lifting frame (63); The two limiting slide posts (82) are fixedly connected to both sides of the lower end of the lower lifting frame (63), and the lower ends of the limiting slide posts (82) pass through the fixed plate (5).

4. The bag-scalding mechanism for a bag-making machine according to claim 1, characterized in that: The upper end of the spring (103) is arranged between the upper lifting frame (61) and the first positioning frame (91), and the lower end of the spring (103) is arranged between the lower lifting frame (63) and the second positioning frame (92).

5. The bag-scalding mechanism for a bag-making machine according to claim 1, characterized in that: Heat insulation grooves (11) are provided at the front and rear ends of the upper lifting frame (61) and the lower lifting frame (63).

Images