Tightening and heat sealing device of heat preservation bag making machine

Abstract

The utility model relates to the technical field of bag making machines, in particular to a tightening heat sealing device of a heat preservation bag making machine, a plurality of transverse sealing assemblies are sequentially arranged on a transverse sealing machine frame in the material conveying direction, tightening assemblies for tightening materials are arranged at the output end and the input end of the transverse sealing machine frame, and each tightening assembly comprises a tightening frame transversely arranged on the transverse sealing machine frame. Two tightening wheel sets are arranged on the tightening frame, the tightening wheel sets are arranged on the two sides of materials respectively and comprise tightening wheel installation parts detachably connected with the tightening frame, two tightening wheel shafts distributed up and down are arranged on the tightening wheel installation parts in a penetrating mode, tightening wheels are arranged at the suspended ends of the tightening wheel shafts, and a material passing gap allowing the materials to penetrate through is formed between the two tightening wheels. The horizontal sealing device has the beneficial effect that the flatness of materials during horizontal sealing is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of bag making machines, in particular to a tightening heat sealing device of a heat preservation 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 CN202320838270.4 discloses a novel transverse hot sealing and slitting mechanism for a three-side sealing bag making machine, including a motor box, a transverse sealing device, a pneumatic punching part, a longitudinal slitting part, a transverse slitting part, a finished product cooking rack, and a movable bracket. The upper hot knife seat 24 and the lower hot knife seat 27 of the transverse sealing device 2 can drive the upper hot knife 25 and the lower hot knife 26 to operate through the guide columns 22 and the spring 21 on both sides, so that the upper hot knife 25 and the lower hot knife 26 can be controlled by the upper and lower hot knife seats 24 and 27 to simultaneously hot seal the cross section of the bag body, thereby ensuring that the cross section of the bag body can be processed by the hot sealing process. However, due to the lack of a structure for tensioning the material in the transverse hot sealing and slitting mechanism, wrinkles will appear when the material is transported in the transverse sealing device. In this case, heat sealing the material will affect the flatness of the finished bag, resulting in a decrease in product quality. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide a tightening heat sealing device for a heat preservation bag making machine to ensure the flatness of the material during horizontal sealing in view of the deficiencies of the above-mentioned prior art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a tensioning heat sealing device of an insulation bag making machine, comprising a transverse sealing frame, on which a plurality of transverse sealing components are sequentially arranged along the material conveying direction, and the output end and the input end of the transverse sealing frame are both provided with tensioning components for tensioning the material, and the tensioning component comprises a tensioning frame transversely arranged on the transverse sealing frame, on which two groups of tensioning wheel groups are arranged, and the tensioning wheel groups are arranged on both sides of the material, and comprise a tensioning wheel mounting member detachably connected to the tensioning frame, and the tensioning wheel mounting member is provided with two tensioning wheel shafts distributed up and down, and a tensioning wheel is provided at the suspended end of the tensioning wheel shaft, and a material feeding gap for the material to pass through is formed between the two tensioning wheels.

[0006] The utility model with the above characteristics: by arranging tensioning components at both the input end and the output end of the horizontal sealing frame, it can ensure that the material remains in a taut state when entering and leaving the horizontal sealing area. This design effectively avoids the wrinkles generated by the relaxation of the material during transportation, thus ensuring the flatness of the material during horizontal sealing and improving the appearance quality and overall flatness of the finished bag; by reducing the downtime adjustment time caused by material wrinkles and improving the success rate and quality of heat sealing, the above technical solution helps to improve the overall production efficiency of the heat-insulating bag making machine.

[0007] A further setting of the utility model is that: the tensioning wheel mounting member includes a wheel seat detachably connected to the tensioning frame and a wheel axle seat for mounting the tensioning wheel axle. The wheel seat is provided with a plug-in circular groove, and one end of the wheel axle seat facing the wheel seat is provided with a plug-in cylinder adapted to the plug-in circular groove and capable of rotating in the plug-in circular groove. The tensioning wheel axles on the same side of the horizontal sealing frame face the same direction, both facing the output end or the input end of the horizontal sealing frame, and the tensioning wheel axles arranged oppositely face different directions.

[0008] The utility model with the above characteristics: by adopting the cooperation mode of the plug-in cylinder and the plug-in circular groove, the installation and disassembly of the wheel seat and the wheel axle seat become very quick and convenient; the plug-in member between the wheel axle seat and the wheel seat is set in the shape of a cylinder and a circular groove, which is convenient for rotating the wheel axle seat to adjust the orientation of the tensioning wheel axle, and can adjust the angle of the tensioning wheel axle according to the actual situation; setting the tensioning wheel axle towards the output end or the input end of the horizontal sealing frame means that the tensioning wheel axle is inclined on the horizontal plane, forming an angle with the horizontal side of the bag body on the horizontal plane, which can increase the clamping force of the tensioning wheel on the bag body, and setting the tensioning wheel axles on both sides of the horizontal sealing frame in different orientations applies two clamping forces in different directions to the bag body, so as to keep the bag body in a taut state, improve the tensioning effect of the tensioning component, and ensure the flatness of the bag body.

[0009] A further setting of the utility model is that: two limiting holes located on the same axis are provided on the inner wall of the plug-in circular groove, and the limiting holes can be connected with fasteners. After the plug-in cylinder and the plug-in circular groove are matched, the rotation angle of the plug-in cylinder in the plug-in circular groove is restricted by the fasteners.

[0010] The utility model with the above characteristics: by adjusting the position of the fastener in the limiting hole, the rotation angle of the plug-in cylinder in the plug-in circular groove can be restricted, ensuring the stable connection between the tensioning wheel mounting member and the tensioning frame. This stable connection structure helps to reduce problems such as loosening or falling off caused by vibration or external force, thus ensuring the reliability and safety of the equipment.

[0011] A further arrangement of the present utility model is as follows: The tensioning frame includes a horizontally arranged tensioning cross beam and tensioning plates provided at both ends of the tensioning cross beam. The tensioning cross beam is horizontally arranged on the transverse sealing machine frame. The tensioning plates are in contact with the outer wall of the transverse sealing machine frame. The tensioning cross beam is square. The wheel seat is provided with a square groove adapted to the tensioning cross beam. A support plate in contact with the lower end surface of the tensioning cross beam is provided at the notch of the square groove. Two limiting holes located on the same axis are provided on the inner wall of the square groove. The limiting holes can be connected with fasteners. The wheel seat and the tensioning cross beam are connected by fasteners.

[0012] For the present utility model with the above characteristics: The wheel seat is provided with a square groove adapted to the tensioning cross beam and a supporting plate. This design simplifies the installation process. During installation, only need to sleeved the wheel seat on the tensioning cross beam and then fix it with fasteners, without complex adjustment and alignment, greatly improving the installation efficiency. The wheel seat is slidably arranged on the tensioning cross beam and can adjust the position of the tensioning wheel mounting member on the tensioning cross beam according to the actual situation, so as to adapt to different usage requirements.

[0013] A further arrangement of the present utility model is as follows: The wheel shaft seat is provided with a circular mounting hole and a waist-shaped mounting hole for mounting the tensioning wheel shaft. The circular mounting hole is located below the waist-shaped mounting hole. A connecting hole is provided at one end of the tensioning wheel shaft inserted into the circular mounting hole or the waist-shaped mounting hole. Limiting holes corresponding to the connecting hole are provided on the hole walls of the circular mounting hole and the waist-shaped mounting hole. Fasteners for fixing the tensioning wheel shaft are threadedly connected in the limiting holes and the connecting hole.

[0014] For the present utility model with the above characteristics: By providing a waist-shaped mounting hole for mounting the tensioning wheel shaft, an adjustment space is provided for the tensioning wheel shaft. The angle between the axis of the tensioning wheel and the horizontal plane is adjusted to adapt to different packaging bag thicknesses, improving the versatility of the tensioning wheel.

[0015] A further arrangement of the present utility model is as follows: An adjusting shaft is horizontally arranged on the tensioning frame. Adjusting gears are provided at both ends of the adjusting shaft. The end of the adjusting shaft passes through the tensioning frame and is provided with an operating handwheel. An adjusting rack meshing with the adjusting gears is laid on the transverse sealing machine frame. The adjusting rack is arranged along the conveying direction of the material.

[0016] For the present utility model with the above characteristics: The rack arranged on the transverse sealing machine frame meshes with the gear on the adjusting shaft. By rotating the operating handwheel, the tensioning frame can be driven to move along the conveying direction, realizing the position adjustment of the tensioning frame on the transverse sealing machine frame.

[0017] The present utility model will be further described in detail below with reference to the drawings and embodiments. Description of the Drawings

[0018] Figure 1 It is a schematic structural diagram of an embodiment of the present utility model.

[0019] Figure 2 This is the installation schematic diagram of the tensioning component in the embodiment of the present utility model.

[0020] Figure 3 This is the structural schematic diagram of the tensioning component in the embodiment of the present utility model.

[0021] Figure 4 This is the partial exploded view of the tensioning component in the embodiment of the present utility model. Detailed implementation manners

[0022] This specific embodiment is only an interpretation of the present utility model, and it is not a limitation to the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without creative contributions as needed, but as long as it is within the scope of the claims of the present utility model, it is protected by the patent law.

[0023] Such as Figures 1-4The tensioning and heat-sealing device of an insulated bag making machine shown in the figure includes a transverse sealing frame e1. Along the material conveying direction on the transverse sealing frame e1, several groups of transverse sealing components e2 are sequentially arranged. Tensioning components e3 for tensioning the material are provided at both the output end and the input end of the transverse sealing frame e1. The tensioning component e3 includes a tensioning frame e31 horizontally arranged on the transverse sealing frame e1. Two groups of tensioning wheel sets e32 are provided on the tensioning frame e31. The tensioning wheel sets e32 are arranged on both sides of the material and include a tensioning wheel mounting member e321 detachably connected to the tensioning frame e31. Two vertically distributed tensioning wheel shafts e322 are passed through the tensioning wheel mounting member e321. At the suspended end of the tensioning wheel shaft e322, there is a tensioning wheel e323. A material passing gap for the material to pass through is formed between the two tensioning wheels e323. The tensioning wheel mounting member e321 includes a wheel seat e3211 detachably connected to the tensioning frame e31 and a wheel shaft seat e3212 for mounting the tensioning wheel shaft e322. An insertion circular groove e32111 is provided on the wheel seat e3211. At one end of the wheel shaft seat e3212 facing the wheel seat e3211, there is an insertion cylinder e32121 adapted to the insertion circular groove e32111 and capable of rotating in the insertion circular groove e32111. The tensioning wheel shafts e322 on the same side of the transverse sealing frame e1 face the same direction, both facing the output end or the input end of the transverse sealing frame e1. The relatively arranged tensioning wheel shafts e322 face different directions. Two limiting holes e32113 located on the same axis are provided on the inner wall of the insertion circular groove e32111. The limiting holes e32113 can be connected to fasteners. After the insertion cylinder e32121 and the insertion circular groove e32111 are matched, the rotation angle of the insertion cylinder e32121 in the insertion circular groove e32111 is limited by the fasteners. A circular mounting hole e32123 and a waist-shaped mounting hole e32122 for mounting the tensioning wheel shaft e322 are provided on the wheel shaft seat e3212. The circular mounting hole e32123 is located below the waist-shaped mounting hole e32122. A connecting hole e3221 is provided at one end of the tensioning wheel shaft e322 inserted into the circular mounting hole e32123 or the waist-shaped mounting hole e32122. Limiting holes e32113 corresponding to the connecting hole are provided on the hole walls of the circular mounting hole e32123 and the waist-shaped mounting hole e32122. Fasteners for fixing the tensioning wheel shaft e322 are threadedly connected to the limiting holes e32113 and the connecting hole.

[0024] The tensioning frame e31 includes a horizontally arranged tensioning cross beam e311 and tensioning plates e312 provided at both ends of the tensioning cross beam e311. The tensioning cross beam e311 is horizontally arranged on the transverse sealing frame e1, and the tensioning plates e312 are in contact with the outer wall of the transverse sealing frame e1. The tensioning cross beam e311 is square. A square groove e32114 adapted to the tensioning cross beam e311 is provided on the wheel seat e3211. A support plate e32115 in contact with the lower end surface of the tensioning cross beam e311 is provided at the notch of the square groove e32114. Two limiting holes e32113 located on the same axis are provided on the inner wall of the square groove e32114. The limiting holes e32113 can be connected to fasteners, and the wheel seat e3211 and the tensioning cross beam e311 are connected by fasteners.

[0025] An adjusting shaft e4 is horizontally arranged on the tensioning frame e31. Adjusting gears e5 are provided at both ends of the adjusting shaft e4. The end of the adjusting shaft e4 passes through the tensioning frame e31 and an operating handwheel e6 is provided. An adjusting rack e7 meshing with the adjusting gears e5 is laid on the transverse sealing frame e1. The adjusting rack e7 is arranged along the conveying direction of the material.

[0026] The packaging film with a zipper ironed at the bag mouth is input into the tensioning assembly. Both sides of the packaging film are clamped by the tensioning wheels to keep the surface in a tensioned state. When it is input into the transverse sealing assembly, the transverse sealing assembly heat-seals it to form both sides of the packaging bag. In this tensioning and heat-sealing device, the temperature of the transverse sealing assembly increases sequentially along the material conveying direction. Through the superposition effect of multiple transverse sealing assemblies, a heat-sealed edge is obtained, which can avoid damage to the packaging film caused by applying high temperature at one time and improve the heat-sealing quality and efficiency.

Claims

1. A tension heat sealing device for a heat preservation bag making machine, comprising a transverse sealing frame, on which a plurality of transverse sealing components are sequentially arranged along a material conveying direction, characterized in that: The output end and the input end of the transverse sealing frame are both provided with a tensioning assembly for tensioning the material, the tensioning assembly includes a tensioning frame horizontally arranged on the transverse sealing frame, the tensioning frame is provided with two groups of tensioning wheel groups, the tensioning wheel groups are arranged on both sides of the material, and include a tensioning wheel mounting part detachably connected to the tensioning frame, two tensioning wheel shafts distributed up and down are passed through the tensioning wheel mounting part, a tensioning wheel is provided at the suspended end of the tensioning wheel shaft, and a material feeding gap is formed between the two tensioning wheels for the material to pass through.

2. The tightening heat sealing device of the heat-insulating bag making machine according to claim 1, characterized in that: The tensioning wheel mounting component includes a wheel seat detachably connected to the tensioning frame, and a wheel axle seat for mounting the tensioning wheel axle, the wheel seat is provided with a plug-in circular groove, and the end of the wheel axle seat facing the wheel seat is provided with a plug-in cylinder that is adapted to the plug-in circular groove and can rotate in the plug-in circular groove. The tensioning wheel axles located on the same side of the transverse sealing frame have the same orientation, both facing the output end or the input end of the transverse sealing frame, and the tensioning wheel axles arranged relatively to each other have different orientations.

3. The tightening heat sealing device of the heat-insulating bag making machine according to claim 2, characterized in that: The inner wall of the plug-in circular groove is provided with two limiting holes located on the same axis, and the limiting holes can be connected with fasteners. After the plug-in cylinder is matched with the plug-in circular groove, the fasteners limit the rotation angle of the plug-in cylinder in the plug-in circular groove.

4. The tightening heat sealing device of the heat-insulating bag making machine according to claim 2, characterized in that: The tensioning frame includes a transversely arranged tensioning beam and tensioning plates arranged at both ends of the tensioning beam. The tensioning beam is horizontally arranged on the transverse sealing frame, and the tensioning plate is in contact with the outer wall of the transverse sealing frame. The tensioning beam is square, and the wheel seat is provided with a square groove adapted to the tensioning beam. The notch of the square groove is provided with a supporting plate in contact with the lower end surface of the tensioning beam. The inner wall of the square groove is provided with two limiting holes located on the same axis. The limiting holes can be connected with fasteners, and the wheel seat and the tensioning beam are connected by fasteners.

5. The tightening heat sealing device of the heat-insulating bag making machine according to claim 2, characterized in that: The wheel axle seat is provided with a circular mounting hole and a waist-shaped mounting hole for installing the tensioning wheel axle, the circular mounting hole is located below the waist-shaped mounting hole, and one end of the tensioning wheel axle inserted into the circular mounting hole or the waist-shaped mounting hole is provided with a connecting hole, and the hole walls of the circular mounting hole and the waist-shaped mounting hole are provided with limiting holes arranged corresponding to the connecting holes, and the limiting hole and the connecting hole are threadedly connected with fasteners for fixing the tensioning wheel axle.

6. The tightening heat sealing device of a heat-insulating bag making machine according to claim 1 or 2, characterized in that: An adjusting shaft is horizontally arranged on the tensioning frame, and adjusting gears are arranged at both ends of the adjusting shaft. The end of the adjusting shaft passes through the tensioning frame and is provided with an operating handwheel. An adjusting rack meshing with the adjusting gear is laid on the horizontal sealing frame, and the adjusting rack is arranged along the conveying direction of the material.

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