Bag opening edge ironing device of heat preservation bag making machine

Abstract

The utility model relates to the technical field of bag making machines, in particular to a bag opening edge ironing device of a heat preservation bag making machine, an edge folding mechanism and an edge ironing mechanism are arranged on an edge ironing machine frame, the edge ironing mechanism comprises an edge folding heat sealing frame, an upper edge folding heat sealing assembly and a lower edge folding heat sealing assembly, and the upper edge folding heat sealing assembly and the lower edge folding heat sealing assembly are arranged at the upper end and the lower end of the edge folding heat sealing frame. A third belt surrounding the upper edge-folding heat-sealing assembly and a fourth belt surrounding the lower edge-folding heat-sealing assembly are erected on the edge-folding heat-sealing frame, the third belt comprises a first protection section located below the upper hot knife, the fourth belt comprises a second protection section located above the lower hot knife, and a feeding gap is formed between the first protection section and the second protection section; the utility model has the beneficial effects that the production efficiency is improved, and the folded edge is prevented from being burnt due to high temperature.

Description

Technical Field

[0001] The utility model relates to the technical field of bag making machines, in particular to a bag edge ironing device for a heat-insulating bag making machine. Background Art

[0002] Bag making machines are favored by people for their high efficiency and full automation, and are widely used in the production of different bags.

[0003] The utility model patent with patent application number CN202122997508.1 discloses a folding device of a protective cover bag making machine for a trolley case, including a frame, on which a folding mechanism, an ultrasonic heat sealing mechanism and a pressing mechanism are provided. The two sides of the non-woven fabric are folded in half by the folding device and fixed by the ultrasonic heat sealing mechanism. The ultrasonic heat sealing mechanism includes a second cross bar horizontally arranged on the frame and an embossing wheel passing through both ends of the second cross bar. An ultrasonic heat sealing device is correspondingly arranged below the embossing wheel. A gap is left between the embossing wheel and the ultrasonic heat sealing device for the non-woven fabric to pass through. The ultrasonic heat sealing mechanism only uses the embossing wheel in conjunction with the ultrasonic heat sealing device for heat sealing. The heat sealing area of ​​the embossing wheel is small and the heat sealing efficiency is low. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide a bag edge folding device for a heat-insulating bag-making machine in view of the deficiencies of the above-mentioned prior art, so as to improve production efficiency and prevent the folding edge from being damaged by high temperature.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a bag mouth ironing device of a heat-insulating bag-making machine, comprising an ironing frame, on which a folding mechanism and an ironing mechanism are arranged, the folding mechanism comprising a first cross bar, folding rollers symmetrically suspended at both ends of the first cross bar, and folding components symmetrically penetrated at both ends of the first cross bar, the ironing frame is provided with two groups of ironing mechanisms, the ironing mechanisms are arranged on both sides of the material conveying direction, the ironing mechanism comprises an ironing heat sealing frame, an upper ironing heat sealing component and a lower ironing heat sealing component arranged at the upper and lower ends of the ironing heat sealing frame, the upper The hemming heat sealing assembly includes an upper ironing knife and an upper ironing cylinder for driving the upper ironing knife to move in a vertical direction. The lower hemming heat sealing assembly includes a lower ironing knife and a lower ironing cylinder for driving the lower ironing knife to move in a vertical direction. The upper ironing knife and the lower ironing knife are both in the shape of long strips. The hemming heat sealing frame is provided with a third belt surrounding the upper hemming heat sealing assembly and a fourth belt surrounding the lower hemming heat sealing assembly. The third belt includes a first protective section below the upper ironing knife, and the fourth belt includes a second protective section above the lower ironing knife. A feeding gap is formed between the first protective section and the second protective section.

[0006] The utility model with the above characteristics: compared with the method of using an embossing wheel in conjunction with an ultrasonic heat sealing device, the use of long upper and lower hot knifes significantly increases the heat sealing area and improves production efficiency; the upper and lower hot knifes press each other to heat seal the folded edge and at the same time have a pressing effect on the folded edge to prevent the folded edge from shifting; by arranging the third and fourth belts, the first protective section is located below the upper hot knife and is in contact with the folded edge of the packaging bag, and the second protective section is located above the lower hot knife and is in contact with the folded edge of the packaging bag, thereby isolating the high-temperature hot knife from the folded edge, achieving hot edge heat sealing while preventing the folded edge from being damaged by high temperature.

[0007] A further arrangement of the utility model is that a plurality of pulleys are arranged on the folding and heat sealing frame, including two fifth pulleys located above the upper folding and heat sealing assembly, a sixth pulley located on both sides of the upper ironing knife, a seventh pulley located on both sides of the lower ironing knife, and two eighth pulleys located below the lower folding and heat sealing assembly, the two fifth pulleys are arranged on both sides of the length direction of the upper folding and heat sealing assembly, the third belt is wound between the fifth pulley and the sixth pulley, the two eighth pulleys are arranged on both sides of the length direction of the lower folding and heat sealing assembly, and the fourth belt is wound between the seventh pulley and the eighth pulley.

[0008] The utility model with the above characteristics ensures the flatness of the first and second protection sections by arranging the fifth and sixth pulleys to cooperate with each other to stretch the third belt, and the seventh and eighth pulleys to cooperate with each other to stretch the fourth belt, thereby flattening the folded edges of the packaging bag and ensuring that the folded edges are more snugly ironed.

[0009] A further arrangement of the utility model is that: a folding cold pressing assembly is respectively arranged at the upper and lower ends of the folding heat sealing frame, the folding cold pressing assembly comprises two guide shafts connected with the folding heat sealing frame and a folding cold pressing plate connected with the guide shafts, the guide shafts are respectively arranged at the two ends of the folding cold pressing plate, a third cold pressing screw is threadedly connected on the folding cold pressing plate, the third cold pressing screw is connected with the folding heat sealing frame, a spring is sleeved on the third cold pressing screw, and a material feeding gap is formed between the folding cold pressing plates of the two groups of folding cold pressing assemblies.

[0010] The utility model with the above characteristics can improve the fit between the folded edge and the bag body heat seal by setting a cold pressing plate with a low temperature and pressing the folded edge after heat sealing again by the cold pressing plate.

[0011] A further arrangement of the utility model is: a hanging plate is provided on the first cross bar, the folding pressure roller is suspended on the first cross bar through the hanging plate, the folding assembly includes a folding plug plate, a plug plate fixing part which is vertically arranged and fixedly connected to the folding plug plate, a plug plate connecting shaft is horizontally passed through the plug plate fixing part, the plug plate connecting shaft passes through one end of the plug plate fixing part and is connected to the hanging plate, a plug plate adjusting rod is horizontally provided on the hanging plate, and the plug plate adjusting rod passes through the ironing machine frame at the other end relative to the hanging plate and is connected to an operating hand wheel.

[0012] A further configuration of the utility model is that the folding plug plate in the folding assembly is the main functional component for realizing the folding of the packaging bag. The two sides of the flat packaging bag are folded inward by the folding plug plate. A plug plate adjustment rod is provided to adjust the position of the folding plug plate on the first cross bar, thereby adjusting the width of the fold, which is suitable for folding packaging bags of different sizes.

[0013] The utility model is further described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic structural diagram of an embodiment of the utility model.

[0015] Figure 2 It is a structural schematic diagram of the edge ironing mechanism of an embodiment of the utility model.

[0016] Figure 3 It is a front view of the edge ironing mechanism according to an embodiment of the utility model.

[0017] Figure 4 It is a structural schematic diagram of the folding mechanism of an embodiment of the utility model. DETAILED DESCRIPTION

[0018] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

[0019] like Figure 1-4The bag edge ironing device of the heat preservation bag making machine shown in the figure comprises an ironing frame b1, on which an edge folding mechanism b2 and an edge ironing mechanism b3 are arranged, the edge folding mechanism b2 comprises a first cross bar b21, edge folding rollers b22 symmetrically suspended at both ends of the first cross bar b21, and an edge folding assembly b23 symmetrically penetrated at both ends of the first cross bar b21, the first cross bar is arranged in the ironing frame, a hanging plate b24 is arranged on the first cross bar b21, and the edge folding rollers b22 are hung on the first cross bar b21 through the hanging plate b24 The folding assembly b23 includes a folding plug plate b231, a plug plate fixing piece b232 which is vertically arranged and fixedly connected to the folding plug plate b231, a plug plate connecting shaft b233 passing through the plug plate fixing piece b232, the plug plate connecting shaft b233 passes through one end of the plug plate fixing piece b232 and is connected to the hanging plate b24, a plug plate adjusting rod b234 is horizontally arranged on the hanging plate b24, and the plug plate adjusting rod b234 passes through the ironing machine frame b1 at the other end relative to the hanging plate b24 and is connected to an operating hand wheel b235.

[0020] The edge-folding frame b1 is provided with two sets of edge-folding mechanisms b3, which are arranged on both sides of the material conveying direction. The edge-folding mechanism b3 includes an edge-folding heat-sealing frame b31, an upper edge-folding heat-sealing assembly b32 and a lower edge-folding heat-sealing assembly b33 arranged at the upper and lower ends of the edge-folding heat-sealing frame b31, the upper edge-folding heat-sealing assembly b32 includes an upper ironing knife b321 and an upper ironing cylinder b322 for driving the upper ironing knife b321 to move in the vertical direction, and the lower edge-folding heat-sealing assembly b33 includes a lower ironing knife b331 and a lower ironing cylinder b322 for driving the lower ironing knife b331 to move in the vertical direction. The ironing cylinder b332, the upper ironing knife b321 and the lower ironing knife b331 are all long strips. The folding heat sealing frame b31 is provided with a third belt b34 surrounding the upper folding heat sealing component b32 and a fourth belt b35 surrounding the lower folding heat sealing component b33. The third belt b34 includes a first protective section b341 located below the upper ironing knife b321, and the fourth belt b35 includes a second protective section b351 located above the lower ironing knife b331. A feeding gap is formed between the first protective section b341 and the second protective section b351.

[0021] A number of pulleys are provided on the folding heat sealing frame b31, including two fifth pulleys b36 located above the upper folding heat sealing component b32, a sixth pulley b37 located on both sides of the upper ironing knife b321, a seventh pulley b38 located on both sides of the lower ironing knife b331, and two eighth pulleys b39 located below the lower folding heat sealing component b33. The two fifth pulleys b36 are arranged on both sides of the length direction of the upper folding heat sealing component b32, the third belt b34 is wound between the fifth pulley b36 and the sixth pulley b37, the two eighth pulleys b39 are arranged on both sides of the length direction of the lower folding heat sealing component b33, and the fourth belt b35 is wound between the seventh pulley b38 and the eighth pulley b39.

[0022] The upper and lower ends of the hemming heat sealing frame b31 are respectively provided with hemming cold pressing assemblies b30, and the hemming cold pressing assembly b30 comprises two guide shafts b301 connected with the hemming heat sealing frame b31, and a hemming cold pressing plate b302 connected with the guide shaft b301, and the guide shaft b301 is respectively provided at both ends of the hemming cold pressing plate b302, and a third cold pressing screw b303 is threadedly connected to the hemming cold pressing plate b302, and the third cold pressing screw b303 is connected to the hemming heat sealing frame b31, and a spring b304 is sleeved on the third cold pressing screw b303, and a material feeding gap is formed between the hemming cold pressing plates b302 of the two sets of hemming cold pressing assemblies b30, and the hemming heat sealing frame b31 is also provided with a hemming cold pressing cylinder b305 for driving the hemming cold pressing plate b302 to rise and fall.

[0023] The packaging film is input from the folding mechanism, and the folding insert plate folds the two sides of the packaging film inward to form a folded edge of the bag. The folding pressing roller assists the folding insert plate to compact the folded edge of the bag, and the packaging film is conveyed forward to the ironing mechanism. When threading the material, the upper ironing knife is separated from the lower ironing knife, and the folding cold pressing plates of the two folding cold pressing components are also separated. When working, the upper ironing knife, the lower ironing knife, and the folding cold pressing plates of the two folding cold pressing components are always kept closed. The third and fourth belts make the first protective section located below the upper ironing knife and in contact with the folded edge of the packaging bag, and the second protective section is located above the lower ironing knife and in contact with the folded edge of the packaging bag, isolating the high-temperature ironing knife from the folded edge, and preventing the folded edge from being damaged by high temperature while ironing the edge.

Claims

1. A bag edge ironing device for a heat preservation bag making machine, comprising an ironing frame, on which an edge folding mechanism and an ironing mechanism are arranged, wherein the edge folding mechanism comprises a first cross bar, edge folding rollers symmetrically suspended at both ends of the first cross bar, and edge folding components symmetrically penetrated at both ends of the first cross bar, characterized in that: The ironing machine frame is provided with two sets of ironing mechanisms, which are arranged on both sides of the material conveying direction. The ironing mechanism includes a folding heat sealing frame, an upper folding heat sealing assembly and a lower folding heat sealing assembly arranged at the upper and lower ends of the folding heat sealing frame. The upper folding heat sealing assembly includes an upper ironing knife and an upper ironing cylinder driving the upper ironing knife to move in a vertical direction. The lower folding heat sealing assembly includes a lower ironing knife and a lower ironing cylinder driving the lower ironing knife to move in a vertical direction. The upper ironing knife and the lower ironing knife are both in the shape of long strips. The folding heat sealing frame is provided with a third belt surrounding the upper folding heat sealing assembly and a fourth belt surrounding the lower folding heat sealing assembly. The third belt includes a first protective section below the upper ironing knife, and the fourth belt includes a second protective section above the lower ironing knife. A material feeding gap is formed between the first protective section and the second protective section.

2. The bag edge ironing device of the heat-insulating bag-making machine according to claim 1, characterized in that: The folding and heat sealing frame is provided with a plurality of pulleys, including two fifth pulleys located above the upper folding and heat sealing assembly, a sixth pulley located on both sides of the upper hot knife, a seventh pulley located on both sides of the lower hot knife, and two eighth pulleys located below the lower folding and heat sealing assembly. The two fifth pulleys are arranged on both sides of the length direction of the upper folding and heat sealing assembly, the third belt is wound between the fifth pulley and the sixth pulley, the two eighth pulleys are arranged on both sides of the length direction of the lower folding and heat sealing assembly, and the fourth belt is wound between the seventh pulley and the eighth pulley.

3. The bag edge ironing device of the heat-insulating bag-making machine according to claim 1, characterized in that: The upper and lower ends of the hemming heat sealing frame are respectively provided with hemming cold pressing assemblies, and the hemming cold pressing assemblies include two guide shafts connected with the hemming heat sealing frame and a hemming cold pressing plate connected with the guide shafts, and the guide shafts are respectively provided at both ends of the hemming cold pressing plate, and a third cold pressing screw is threadedly connected with the hemming cold pressing plate, and the third cold pressing screw is connected with the hemming heat sealing frame, and a spring is sleeved on the third cold pressing screw, and a feeding gap is formed between the hemming cold pressing plates of the two groups of hemming cold pressing assemblies.

4. The bag edge ironing device of the heat-insulating bag-making machine according to claim 1, characterized in that: A hanging plate is provided on the first cross bar, and the folding roller is suspended on the first cross bar through the hanging plate. The folding assembly includes a folding plug plate, a plug plate fixing part which is vertically arranged and fixedly connected to the folding plug plate, a plug plate connecting shaft is horizontally passed through the plug plate fixing part, and the plug plate connecting shaft passes through one end of the plug plate fixing part and is connected to the hanging plate, a plug plate adjusting rod is horizontally provided on the hanging plate, and the plug plate adjusting rod passes through the ironing machine frame relative to the other end of the hanging plate and is connected to an operating hand wheel.

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