Spout-type liquid bag making machine suitable for heat sealing of various film materials

Abstract

The invention discloses a spout-type liquid bag making machine suitable for heat sealing of various film materials, including a main frame and a discharging device, an adjusting device, a material dividing device, a patch device, a hole opening device, a welding valve device, a converging station, a transverse sealing mechanism and a longitudinal sealing mechanism arranged on the main frame, wherein the transverse sealing mechanism and the longitudinal sealing mechanism include an upper heat sealing knife assembly, a lower heat sealing knife assembly, a cooling assembly, a transverse cutting knife device, a longitudinal sliding knife device, and a pulse heating welding power supply, which are electrically connected with a patch heating resistor wire, a valve body welding ring, an upper heat sealing knife assembly, a lower heat sealing knife assembly, a patch resistor wire cooling plate assembly, a welding ring cooling mold assembly and a cooling assembly, and control the heating of the patch heating resistor wire, the valve body welding ring, the upper heat sealing knife assembly, and the lower heat sealing knife assembly, and control the water cooling of the patch resistor wire cooling plate assembly, the welding ring cooling mold assembly and the cooling assembly. The invention is suitable for heat sealing of various materials, and significantly improves the versatility of bag making.

Description

Technical Field

[0001] The invention relates to a mechanical bag making device, and more particularly to a spout-type liquid bag making machine suitable for heat-sealing a variety of film materials. Background Art

[0002] The bag making machine is a device used to make plastic packaging bags. It is used to compound the plastic upper film and the plastic lower film. That is, the upper film and the lower film are respectively guided and conveyed on the bag making machine, and then overlapped at the appropriate position. The overlapped upper and lower films are sealed horizontally and vertically to form multiple bag structures, and finally cut by a cutter to form multiple independent bag bodies.

[0003] In the prior art, the edge sealing device of the bag making machine is a constant temperature heating structure, which makes it only suitable for heating edge sealing of composite films, but cannot be used for heating edge sealing of pure PE film, co-extruded film, new material PLA, PBAT degradable film with surface layer. The reason is that during the heat sealing process of PE film, co-extruded film, new material PLA, PBAT degradable film, PE film, co-extruded film, new material PLA, PBAT degradable film will soften, and the softened film is easy to break when being pulled. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention provides a spout-type liquid bag making machine suitable for heat sealing of various film materials, which is suitable for heat sealing of various materials and significantly improves the versatility of bag making.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A spout-type liquid bag making machine suitable for heat-sealing a variety of film materials, characterized in that it comprises a main frame and a

[0007] A material unloading device, including a plurality of material rack mechanisms for supplying and unloading material rolls;

[0008] The adjusting device includes a plurality of adjusting arm mechanisms for receiving the raw materials from the discharging device and adjusting the tension of the raw materials;

[0009] A material distribution device, comprising a plurality of material distribution guide roller mechanisms for receiving the raw materials on the regulating device, and transmitting the raw materials in groups to form an upper film transmission route and a lower film transmission route;

[0010] A patch device receives the upper film on the upper film conveying route and includes a patch heating resistor wire and a patch resistor wire cooling plate assembly for welding a reinforcing sheet to the upper film;

[0011] A hole opening device receives the upper diaphragm compounded with the reinforcing sheet and opens a mounting hole on the upper diaphragm;

[0012] The valve welding device receives an upper diaphragm with a mounting hole, and includes a valve body welding ring for welding the valve body on the mounting hole of the upper diaphragm and a welding ring cooling mold assembly;

[0013] A merging station, wherein the merging station is provided with a collecting roller for receiving an upper diaphragm with a valve body installed thereon and a lower diaphragm on a lower diaphragm conveying route, and making the upper diaphragm and the lower diaphragm overlap each other;

[0014] The heat sealing device comprises a transverse sealing mechanism and a longitudinal sealing mechanism, wherein the transverse sealing mechanism and the longitudinal sealing mechanism comprise an upper heat sealing knife assembly, a lower heat sealing knife assembly and a cooling assembly, wherein a heat sealing station is formed between the upper heat sealing knife assembly and the lower heat sealing knife assembly for the upper and lower films in a stacked state to pass through, and the upper and lower films passing through are heat-sealed;

[0015] The horizontal cutting device is used to cut the edges of the upper and lower films after heat sealing;

[0016] The longitudinal sliding knife device slides off the trimmed upper and lower membrane sheets to form independent liquid bags;

[0017] The pulse heating welding power supply is electrically connected to the patch heating resistor wire, the valve body welding ring, the upper heat sealing knife assembly, the lower heat sealing knife assembly, the patch resistor wire cooling plate assembly, the welding ring cooling mold assembly and the cooling assembly, and controls the heating of the patch heating resistor wire, the valve body welding ring, the upper heat sealing knife assembly and the lower heat sealing knife assembly, and controls the water cooling of the patch resistor wire cooling plate assembly, the welding ring cooling mold assembly and the cooling assembly.

[0018] Preferably, the raw material rack mechanism includes two parallel rack plates and a material discharge motor installed on the rack plates.

[0019] Preferably, the adjusting arm mechanism comprises a swing arm and an adjusting cylinder;

[0020] One end of the swing arm is hinged to the main frame, and the other end is a free end that can swing, and the swing arm is provided with a plurality of adjusting rollers arranged in parallel;

[0021] The regulating cylinder is installed on the main frame, and the regulating cylinder is connected to the swing arm and drives the free end of the swing arm to swing up and down.

[0022] Preferably, the material distribution guide roller mechanism includes an upper film conveying guide roller group and a lower film conveying guide roller group, and the upper film conveying guide roller group and the lower film conveying guide roller group both include a receiving roller for receiving the raw materials on the swing arm and a merging roller for merging the raw materials on the receiving roller.

[0023] Preferably, the upper film conveying route includes a patch route and a non-patch route.

[0024] Preferably, the hole opening device and the welding valve device are each provided with two groups.

[0025] Preferably, it further comprises a first pulling device and a second pulling device; the first pulling device is arranged between the heat sealing device and the welding valve device; the second pulling device is arranged between the transverse sealing mechanism and the longitudinal sealing mechanism.

[0026] Preferably, the transverse cutter device comprises a plate frame and a cutter; the plate frame has two pieces and is located on both sides of the main frame; the cutter is installed on the plate frame and is located on both sides of the transverse sealing part.

[0027] The advantages of the present invention are:

[0028] 1. The pulse heating welding power supply is instantaneous power supply, that is, the corresponding current is generated only when heating, so as to instantaneously heat the patch heating resistor wire, the valve body welding ring, the upper heat sealing knife assembly and the lower heat sealing knife assembly. At the same time, the patch heating resistor wire, the valve body welding ring, the upper heat sealing knife assembly and the lower heat sealing knife assembly can be instantaneously cooled by using the patch resistor wire cooling plate assembly, the welding ring cooling mold assembly and the cooling assembly. Instant heating and instant cooling can realize heating, welding and heat sealing of various composite materials, that is, the production of pure PE film, co-extruded film, new material PLA, and PBAT degradable film on the surface can be completed; on the other hand, the use of pulse heating welding power supply to control heating and cooling can significantly reduce the energy consumption of the present invention.

[0029] , patching the upper diaphragm with a patch device can significantly improve the structural strength of the upper diaphragm, thereby improving the installation strength of the valve body on the upper diaphragm.

[0030] The arrangement of the material dividing device and the merging station can facilitate the patching, hole opening and valve welding operations of the upper diaphragm, thereby realizing the bag making of various materials of the present invention.

[0031] , the transverse cutting device can cut off the excess on both sides of the upper and lower diaphragms, thereby improving the production quality of the liquid bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 A schematic diagram of a spout-type liquid bag making machine suitable for heat-sealing a variety of film materials provided in this embodiment;

[0033] Figure 2 A schematic diagram of a raw material rack mechanism provided in this embodiment;

[0034] Figure 3 A schematic diagram of the adjustment arm mechanism provided in this embodiment;

[0035] Figure 4 A schematic diagram of a material distribution device provided in this embodiment;

[0036] Figure 5A schematic diagram of the patch device and the upper film conveying route provided in this embodiment;

[0037] Figure 6 A schematic diagram of the longitudinal sliding knife device provided in this embodiment;

[0038] Figure 7 This is a schematic diagram of the welding valve device provided in this embodiment. DETAILED DESCRIPTION

[0039] Combination Figures 1 to 7 The present invention further describes the spout-type liquid bag making machine applicable to heat-sealing of various film materials.

[0040] A spout-type liquid bag making machine suitable for heat-sealing a variety of film materials, characterized in that it comprises a main frame 1 and a

[0041] The unloading device 2 includes a plurality of raw material rack mechanisms 21 for mounting and unloading raw material rolls 1001. In this embodiment, there are six raw material rack mechanisms 21, that is, a maximum of six rolls of film material can be unloaded at the same time. The number can be set according to demand in actual use;

[0042] The adjusting device 3 includes a plurality of adjusting arm mechanisms 31 for receiving the raw materials from the unloading device 2 and adjusting the tension of the raw materials. In this embodiment, there are six adjusting arm mechanisms 31 arranged vertically to correspond to the six raw material rack mechanisms 21 for transmission;

[0043] The material dividing device 4 includes a plurality of material dividing guide roller mechanisms for receiving the raw materials on the regulating device 3, and transferring the raw materials into groups to form an upper film transfer route 43 and a lower film transfer route 44, so as to transfer the six rolls of raw materials into two groups;

[0044] The patch device 5 receives the upper film on the upper film conveying route 43, and includes a patch heating resistor 51 and a patch resistor cooling plate assembly 52 with a reinforcement plate welded on the upper surface of the upper film. The patch device 5 is described in the patent document with application number 201920322058.6, and it should be noted that: the patch heating resistor is fixed to the lower surface of the patch resistor cooling plate assembly, and the two are combined to form a heating plate in the public document, and are installed on the lower surface of the hot pressing frame by bolts. The patch resistor cooling plate has a cooling water channel to achieve instantaneous cooling of the patch resistor cooling plate and the patch heating resistor;

[0045] The hole-opening device 6 receives the upper diaphragm compounded with the reinforcing sheet and opens a mounting hole on the upper diaphragm. The hole-opening device 6 is a prior art and is recorded in the patent document with application number 201920321437.3, so the present invention will not be explained in detail;

[0046] The valve welding device 7 receives an upper diaphragm with a mounting hole, and includes a valve body welding ring 72 for welding a valve body on the mounting hole of the upper diaphragm and a welding ring cooling mold assembly 71. The valve welding device 7 is described in the patent document with the publication number CN106541616A. It should be noted that the valve body welding ring 72 is fixedly sleeved in the welding ring cooling mold assembly, and the two are combined to form a heating head in the public document, and are driven by a cylinder 73 to move toward the valve assembly. The welding ring cooling mold assembly has a cooling water channel to instantly cool the welding ring cooling mold assembly and the valve body welding ring;

[0047] The merging station 8 has a collecting roller 81 for receiving the upper diaphragm with the valve body installed and the lower diaphragm on the lower diaphragm conveying route 44, and superimposes the upper diaphragm and the lower diaphragm up and down for conveying, so as to facilitate the subsequent process;

[0048] The heat sealing device 9 comprises a transverse sealing mechanism 91 and a longitudinal sealing mechanism 92, wherein the transverse sealing mechanism 91 and the longitudinal sealing mechanism 92 comprise an upper heat sealing knife assembly, a lower heat sealing knife assembly and a cooling assembly, wherein a heat sealing station is formed between the upper heat sealing knife assembly and the lower heat sealing knife assembly for passing the upper and lower diaphragms in the upper and lower overlapping state, and the passing upper and lower diaphragms are heat-sealed, and the heat sealing device 9 is recorded in the patent documents with application numbers 201920473195.X and 201920473228.0; it should be further explained that the cooling assembly is an air cooling assembly, a first upper cooling mounting plate and a first lower cooling mounting plate;

[0049] A transverse cutting device 10 is used to cut the edges of the upper and lower films that have been heat-sealed;

[0050] The longitudinal sliding knife device 11 slides off the trimmed upper and lower membrane sheets to form independent liquid bags. The longitudinal sliding knife device 11 is a prior art and is recorded in the patent document with application number 201920473228.0, so it is not described in detail in this embodiment;

[0051] The pulse heating welding power supply is electrically connected to the patch heating resistor wire, the valve body welding ring, the upper heat sealing knife assembly, the lower heat sealing knife assembly, the patch resistor wire cooling plate assembly, the welding ring cooling mold assembly and the cooling assembly, and controls the pulse heating of the patch heating resistor wire, the valve body welding ring, the upper heat sealing knife assembly and the lower heat sealing knife assembly, and controls the water cooling of the patch resistor wire cooling plate assembly, the welding ring cooling mold assembly and the cooling assembly.

[0052] The pulse heating welding power supply is electrically connected to the patch heating resistor wire, the valve body welding ring, the upper heating resistor wire and the lower heating resistor wire, and controls the patch heating resistor wire, the valve body welding ring, the upper heating resistor wire and the lower heating resistor wire in the form of pulses for instantaneous power-on heating, welding and heat sealing. The pulse heating welding power supply is electrically connected to the patch resistor wire cooling plate assembly, the welding ring cooling mold assembly and the cooling assembly. In the non-welding and heat-sealing state, the corresponding switch valves are controlled to control the cooling water in the patch resistor wire cooling plate assembly, the welding ring cooling mold assembly and the cooling assembly to instantaneously cool the patch heating resistor wire, the valve body welding ring, the upper heating resistor wire and the lower heating resistor wire, and to blow air on the welding parts of the upper diaphragm and the lower diaphragm. The pulse heating welding power supply can be purchased and used directly online. Instantaneous heating for welding and heat sealing can be achieved in the form of pulses, and instantaneous cooling can also be achieved. Therefore, the present invention can realize welding and heat sealing of various materials, has wide applicability, and low power consumption.

[0053] During operation, six rolls of raw materials are placed on the raw material rack mechanism 21 for unloading; the six rolls of raw materials pass through the adjusting device and the adjusting arm mechanism 31 for tension adjustment so that the tension of the raw material transmission can adapt to the process at each station; the raw materials after tension adjustment pass through the material dividing device 4, which divides the six rolls of raw materials into two routes for transmission, one of which is the upper film transmission route 43 for subsequent patching, hole opening, and valve welding of the upper film. The other route is located below the upper film transmission route 43, which is the lower film transmission route 44 and directly transmits the lower film; after the patching, hole opening, and valve welding of the upper film are completed, it is merged with the lower film at the merging station 8, and the upper and lower films are overlapped and continued to be transmitted; the upper and lower films overlapped are sealed on four sides by the heat sealing device 9 to form a connected liquid bag; after passing through the transverse cutting device 10, the excess parts on both sides of the liquid bag will be cut off; finally, when the connected liquid bags pass through the longitudinal sliding knife device 11, they are cut by the longitudinal sliding knife device to form independent liquid bags.

[0054] This embodiment is further configured as follows: the raw material rack mechanism 21 includes two parallel rack plates 211 and a feeding motor 212 installed on the rack plates 211, the rack plates have mounting holes, the raw material roll 1001 is installed in the mounting holes, and the end of the raw material roll 1001 is connected to the feeding motor 212 through a transmission component such as a belt, a reduction gear set, etc., to realize the rotation and feeding of the raw material roll 1001.

[0055] This embodiment is further configured as follows: the adjusting arm mechanism 31 includes a swing arm 312 and an adjusting cylinder 314;

[0056] One end of the swing arm 312 is hinged to the main frame 1, and the other end is a free end that can swing up and down, and the swing arm 312 has a plurality of adjustment rollers 313 arranged in parallel, and the main frame 1 has a plurality of fixed rollers 311;

[0057] The regulating cylinder 314 is installed on the main frame 1, and the regulating cylinder 314 is connected to the swing arm 312 and drives the free end of the swing arm 312 to swing up and down.

[0058] The raw material 100 passes around the fixed roller 311 and the adjusting roller 313 in sequence, and the adjusting cylinder 314 drives the swing arm to swing up and down to adjust the distance between the adjusting roller 313 and the fixed roller 311, thereby adjusting the transmission tension of the raw material 100.

[0059] The present embodiment is further configured as follows: the material distribution guide roller mechanism includes an upper film conveying guide roller group and a lower film conveying guide roller group, and the upper film conveying guide roller group and the lower film conveying guide roller group both include a receiving roller 41 for receiving the raw material 100 on the swing arm and a merging roller 42 for merging the raw material 100 on the receiving roller. Under this structure, the six rolls of raw material rolls 1001 can be divided into two groups for transmission, and each group has three rolls of raw material. It should be noted that in actual production, the material can be divided according to actual needs, that is, it can be divided into three groups or four groups.

[0060] This embodiment is further configured as follows: the upper film conveying route 43 includes a patch route 431 and a non-patch route 432, and the patch route 431 and the non-patch route 432 are separately conveyed by multiple conveying rollers 433, that is, the uppermost layer of raw material of the upper film is conveyed on the patch route 431 for patching operation, and the remaining two layers of raw material in the upper film are conveyed on the non-patch route 432. This setting can facilitate patching, that is, ironing the patch on the uppermost raw material of the upper film, avoiding the influence of the lower raw material on the patch, and improving the quality of the patch.

[0061] This embodiment is further configured as follows: the hole opening device 6 and the valve welding device 7 are each provided with two groups. This configuration can produce a one-out-four liquid bag, and the adjustment is more convenient; when welding the valve body, the distance between the valve bodies is not limited; and a mandarin duck valve can also be produced.

[0062] This embodiment is further configured as follows: it also includes a first pulling device 12 and a second pulling device 13; the first pulling device 12 is arranged between the heat sealing device 9 and the welding valve device 7; the second pulling device 13 is arranged between the transverse sealing mechanism 91 and the longitudinal sealing mechanism 92. This arrangement enables the raw material 100 to move stably throughout the whole process and pass through each device in turn.

[0063] This embodiment is further configured as follows: the transverse cutter device 10 includes a plate frame 101 and a cutter 102; the plate frame 101 has two pieces and is located at both sides of the main frame 1; the cutter 102 is installed on the plate frame 101 and is located at both sides of the transverse sealing part. When the heat-sealed raw material 100 is moving, the cutter 102 completes the cutting operation.

[0064] Unless otherwise specified, in the present invention, the terms "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicating orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the orientation or positional relationship in the present invention are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood in conjunction with the accompanying drawings and according to specific circumstances.

[0065] Unless otherwise clearly specified and limited, in the present invention, the terms "disposed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0066] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A spout-type liquid bag making machine suitable for heat sealing of various film materials, characterized by: It includes a main frame and a A material unloading device, including a plurality of material rack mechanisms for supplying and unloading material rolls; The adjusting device includes a plurality of adjusting arm mechanisms for receiving the raw materials from the discharging device and adjusting the tension of the raw materials; A material distribution device, comprising a plurality of material distribution guide roller mechanisms for receiving the raw materials on the regulating device, and transmitting the raw materials in groups to form an upper film transmission route and a lower film transmission route; A patch device receives an upper film on an upper film conveying route and includes a patch heating resistor wire and a patch resistor wire cooling plate assembly for welding a reinforcing sheet to the upper film; the upper film conveying route includes a patch route and a non-patch route; The patch route and the non-patch route are separately conveyed by multiple conveying rollers, that is, the uppermost material of the upper film is conveyed on the patch route for patching, and the remaining two materials in the upper film are conveyed on the non-patch route. This arrangement can facilitate patching, that is, the patch is ironed on the uppermost material of the upper film to avoid the influence of the lower material on the patch; A hole opening device receives the upper diaphragm compounded with the reinforcing sheet and opens a mounting hole on the upper diaphragm; The valve welding device receives an upper diaphragm with a mounting hole, and includes a valve body welding ring for welding the valve body on the mounting hole of the upper diaphragm and a welding ring cooling mold assembly; A merging station, wherein the merging station is provided with a collecting roller for receiving an upper diaphragm with a valve body installed thereon and a lower diaphragm on a lower diaphragm conveying route, and making the upper diaphragm and the lower diaphragm overlap each other; The heat sealing device comprises a transverse sealing mechanism and a longitudinal sealing mechanism, wherein the transverse sealing mechanism and the longitudinal sealing mechanism comprise an upper heat sealing knife assembly, a lower heat sealing knife assembly and a cooling assembly, wherein a heat sealing station is formed between the upper heat sealing knife assembly and the lower heat sealing knife assembly for the upper and lower films in a stacked state to pass through, and the upper and lower films passing through are heat-sealed; The horizontal cutting device is used to cut the edges of the upper and lower films after heat sealing; The longitudinal sliding knife device slides off the trimmed upper and lower membrane sheets to form independent liquid bags; The pulse heating welding power supply is electrically connected to the patch heating resistor wire, the valve body welding ring, the upper heat sealing knife assembly, the lower heat sealing knife assembly, the patch resistor wire cooling plate assembly, the welding ring cooling mold assembly and the cooling assembly, and controls the heating of the patch heating resistor wire, the valve body welding ring, the upper heat sealing knife assembly and the lower heat sealing knife assembly, and controls the water cooling of the patch resistor wire cooling plate assembly, the welding ring cooling mold assembly and the cooling assembly.

2. The spout-type liquid bag making machine suitable for heat sealing of various film materials according to claim 1 is characterized in that: The raw material rack mechanism comprises two parallel rack plates and a material discharging motor installed on the rack plates.

3. The spout-type liquid bag making machine suitable for heat sealing of various film materials according to claim 1 is characterized in that: The adjusting arm mechanism comprises a swing arm and an adjusting cylinder; One end of the swing arm is hinged to the main frame, and the other end is a free end that can swing, and the swing arm is provided with a plurality of adjusting rollers arranged in parallel; The regulating cylinder is installed on the main frame, and the regulating cylinder is connected to the swing arm and drives the free end of the swing arm to swing up and down.

4. The spout-type liquid bag making machine suitable for heat sealing of various film materials according to claim 1 is characterized in that: The material distribution guide roller mechanism includes an upper film conveying guide roller group and a lower film conveying guide roller group, and the upper film conveying guide roller group and the lower film conveying guide roller group both include a receiving roller for receiving the raw materials on the swing arm and a merging roller for merging the raw materials on the receiving roller.

5. The spout-type liquid bag making machine suitable for heat sealing of various film materials according to claim 1 is characterized in that: The hole opening device and the welding valve device are both provided with two groups.

6. The spout-type liquid bag making machine suitable for heat-sealing a variety of film materials according to claim 1, characterized in that: It also includes a first pulling device and a second pulling device; the first pulling device is arranged between the heat sealing device and the welding valve device; the second pulling device is arranged between the transverse sealing mechanism and the longitudinal sealing mechanism.

7. The spout-type liquid bag making machine suitable for heat-sealing a variety of film materials according to claim 1 is characterized in that: The transverse cutter device comprises a plate frame and a cutter; the plate frame has two pieces and is located at both sides of the main frame; the cutter is installed on the plate frame and is located at both sides of the transverse sealing part.

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