A continuous cylindrical packaging material inner and outer layer set and sealing device

Abstract

The present invention discloses a continuous cylindrical packaging material inner and outer layer set and sealing device, including an inner layer cylindrical packaging material placement mold, the inner layer cylindrical packaging material is placed in the inner layer cylindrical packaging material placement mold, the outer layer cylindrical packaging material wraps and passes through the inner layer cylindrical packaging material placement mold, and is set with the inner layer cylindrical packaging material in the inner layer cylindrical packaging material placement mold, and also includes a cylindrical packaging material expansion sleeve positioning device and an inner layer cylindrical packaging material guide roller device, the inner layer cylindrical packaging material guide roller device is arranged at the discharge end of the inner layer cylindrical packaging material placement mold, the cylindrical packaging material expansion sleeve positioning device is arranged at the pre-pressing positioning roller, and the end of the frame is provided with a double-layer continuous cylindrical packaging material curling roller driven by a driving device to rotate and seal. The present invention can process double-layer continuous cylindrical packaging materials or packaging bags, and the double-layer continuous cylindrical packaging materials are not wrinkled or twisted, thereby improving the continuity of production.

Description

Technical Field

[0001] The invention relates to a packaging material processing device, in particular to an inner and outer layer sheathing and sealing device for continuous cylindrical packaging materials. Background Art

[0002] Cylindrical packaging materials are packaging materials processed into cylindrical shapes. Such packaging materials can be made of plastic, paper, fabric, rubber and other materials. When used, a section is cut according to the length (one end is sealed to make a packaging bag). When packaging, only the two ends need to be sealed to complete the sealing of the whole bag, which greatly saves the processing procedures. In recent years, the usage has been increasing. In order to improve the protective effect of such packaging materials, the cylindrical packaging materials are divided into inner and outer layers, that is, double-layer cylindrical packaging materials. When the inner or outer layer is damaged, there is another layer that still plays a protective role. At present, a single strip is cut, and the outer bag and the inner bag are sealed separately, and then put together, and then the upper mouths of the inner and outer bags are sealed together and opened as a whole, and then the materials are loaded, and then the end of the two layers sealed into one layer is sealed as a whole. In this way, the double-layer cylindrical packaging bag with the upper mouth sealed into one layer is produced manually. Now it is mainly sealed by a sewing machine, or adhesive bonding, or ultrasonic bonding. Single strip production has very low efficiency and cannot meet the requirements of continuous overall sealing and continuous double-layer bonding and overall opening and continuous bagging. Summary of the invention

[0003] In order to solve the above problems, the purpose of the present invention is to provide a continuous cylindrical packaging material inner and outer layer set and sealing device, and the state after continuous set and sealing is that the bottom is completely sealed or not sealed, and the upper position is the inner and outer layers sealed and the overall open structure.

[0004] To achieve the above-mentioned purpose, the technical scheme of the present invention is as follows: a continuous cylindrical packaging material inner and outer layer set and sealing device, comprising an inner layer cylindrical packaging material placement mold, a cylindrical packaging material expansion sleeve positioning device and an inner layer cylindrical packaging material guide roller device arranged on a frame body, the inner layer cylindrical packaging material guide roller device is arranged at the discharge end of the inner layer cylindrical packaging material placement mold, the cylindrical packaging material expansion sleeve positioning device is arranged at the pre-pressing positioning roller, and the end of the frame body is provided with a double-layer continuous cylindrical packaging material curling roller driven by a driving device to rotate and seal. A freely rotatable outer layer cylindrical packaging material placing roller is provided at the front end of the frame, and the outer layer cylindrical packaging material is rolled up on the outer layer cylindrical packaging material placing roller, and the inner layer cylindrical packaging material is placed in the inner layer cylindrical packaging material placing mold after being rolled up or folded, and the outer layer cylindrical packaging material passes through and is covered over the inner layer cylindrical packaging material placing mold, and one end of the inner layer cylindrical packaging material is pulled out and fits together with the outer layer cylindrical packaging material passing through here, and the inner and outer layers are sealed with an adhesive, and then it passes through the pre-pressure positioning roller and the degassing roller in turn and is rolled up onto the double-layer continuous cylindrical packaging material winding roller.

[0005] Furthermore, when the inner layer cylindrical packaging material is rolled up and placed in the inner layer cylindrical packaging material placing mold, the inner layer cylindrical packaging material placing mold includes an inner layer cylindrical packaging material placing cylinder and a long strip placement opening on the side wall or top of one side of the inner layer cylindrical packaging material placing cylinder. The inner layer cylindrical packaging material placing cylinder is the main body of the inner layer cylindrical packaging material placing mold. The long strip placement opening of the inner layer cylindrical packaging material placing cylinder is provided with an openable arc plate through a hinge. Inner layer cylindrical packaging material supporting rollers are respectively provided at both ends of the inner layer cylindrical packaging material placing cylinder. The rolled inner layer cylindrical packaging material is wound on a closed-loop conveyor belt supported by multiple inner layer cylindrical packaging material supporting rollers.

[0006] Furthermore, the cylindrical packaging material expansion sleeve positioning device includes a double-layer continuous cylindrical packaging material expansion sleeve and a support rod. The vertical cross-section of the double-layer continuous cylindrical packaging material expansion sleeve is a polygon whose outer end is narrower than or equal to the inner end, such as an isosceles trapezoid. The support rod is fixed at the center of the narrower end of the double-layer continuous cylindrical packaging material expansion sleeve, and the other end of the support rod is provided with a double-layer continuous cylindrical packaging material sleeve positioning roller that is symmetrical up and down.

[0007] Furthermore, the inner layer cylindrical packaging material guide roller device includes an inner layer cylindrical packaging material guide cylinder and an inner layer cylindrical packaging material expansion and positioning roller. The inner end of the inner layer cylindrical packaging material guide cylinder is fixedly connected and communicated with one end of the inner layer cylindrical packaging material placement mold. The outer end diameter of the inner layer cylindrical packaging material guide cylinder is less than or equal to the inner end diameter, and a circle of evenly arranged inner layer cylindrical packaging material guide wheels is supported on the outer end edge. The inner layer cylindrical packaging material expansion and positioning roller is located in the inner layer cylindrical packaging material placement mold.

[0008] Furthermore, tensioning devices are respectively provided at both ends of the frame body near the double-layer continuous cylindrical packaging material curling roller and the outer cylindrical packaging material placement roller. The tensioning device includes a tensioning lever at the bottom and two horizontal reversing rollers located above the tensioning lever. One end of the tensioning lever is rotatably arranged in the frame body through a supporting shaft, and three tensioning rollers are respectively arranged on the tensioning lever.

[0009] Furthermore, guide rollers for supporting and limiting are respectively arranged at the bottom and both sides of the mold part where the inner layer cylindrical packaging material is placed, and a plurality of hollow roller contact notches are arranged on the lower surface of the inner layer cylindrical packaging material placement cylinder, and the rotating shafts of a plurality of inner layer cylindrical packaging material supporting rollers are arranged in the inner layer cylindrical packaging material placement cylinder for sliding up and down, so that the plurality of inner layer cylindrical packaging material supporting rollers can move up and down in the inner layer cylindrical packaging material placement cylinder, and the inner layer cylindrical packaging material placement cylinder above each inner layer cylindrical packaging material supporting roller is respectively provided with a compression roller fixed by a compression spring, and the compression roller brings the rolled inner layer cylindrical packaging material into close contact with the double-layer continuous cylindrical packaging material or the outer layer cylindrical packaging material passing through the surface of the guide rollers.

[0010] Furthermore, when the inner layer tubular packaging material is discharged in the opposite direction from the outer layer tubular packaging material at the discharge end of the inner layer tubular packaging material placement mold, the discharge end of the inner layer tubular packaging material placement mold faces the outer layer tubular packaging material placement roller, the inner layer tubular packaging material guide roller device is arranged at the discharge end of the inner layer tubular packaging material placement mold, the tubular packaging material expansion sleeve positioning device is arranged at the other end of the inner layer tubular packaging material placement mold, and the tubular packaging material expansion sleeve positioning device is in contact with the pre-pressing positioning roller, and the outer layer tubular packaging material passes through the inner layer The cylindrical packaging material guide roller device expands into a cylindrical shape and perforates and glues the inner wall. The inner layer cylindrical packaging material is pulled out and turned over at the discharge end of the inner layer cylindrical packaging material guide roller device and then expanded into a cylindrical shape, and is fitted and sleeved with the outer layer cylindrical packaging material passing here to form a double-layer continuous cylindrical packaging material. Then the double-layer continuous cylindrical packaging material is successively sleeved through the inner layer cylindrical packaging material placement mold, the cylindrical packaging material expansion sleeve positioning device, and then passes through the pre-pressing positioning roller. After being flattened by the pre-pressing positioning roller, it is rolled up onto the double-layer continuous cylindrical packaging material winding roller through the degassing roller.

[0011] Furthermore, when the discharge direction of the inner layer tubular packaging material at the discharge end of the inner layer tubular packaging material placement mold is the same as the movement direction of the outer layer tubular packaging material, the discharge end of the inner layer tubular packaging material placement mold faces the double-layer continuous tubular packaging material curling roller, the inner layer tubular packaging material guide roller device is arranged at the discharge end of the inner layer tubular packaging material placement mold, the tubular packaging material expansion sleeve positioning device is separately arranged from the inner layer tubular packaging material placement mold, and a middle outer positioning roller and a rear outer positioning roller located on the frame are arranged between the tubular packaging material expansion sleeve positioning device and the inner layer tubular packaging material guide roller device, the middle outer positioning roller is in contact with the inner layer tubular packaging material guide roller device, and the tubular packaging material expansion sleeve positioning device The discharge end contacts the pre-pressing positioning roller, and the rear inner positioning roller arranged at the feeding end of the tubular packaging material expansion sleeve positioning device contacts the rear outer positioning roller. The outer layer tubular packaging material is sleeved through the feeding end of the inner layer tubular packaging material placement mold and expanded into a cylindrical shape. After passing through the inner layer tubular packaging material placement mold and the inner layer tubular packaging material is pulled out at the discharge end of the inner layer tubular packaging material guide roller device, it expands into a cylindrical shape and directly fits and sleeves with the outer layer tubular packaging material passing here to form a double-layer continuous tubular packaging material. Then the double-layer continuous tubular packaging material passes through the tubular packaging material expansion sleeve positioning device in turn, and then passes through the pre-pressing positioning roller. After being flattened by the pre-pressing positioning roller, it is rolled up onto the double-layer continuous tubular packaging material winding roller through the degassing roller.

[0012] Furthermore, the feed end of the mold where the inner layer cylindrical packaging material is placed is provided with evenly arranged front inner positioning rollers, and the frame is provided with front outer positioning rollers arranged around the front inner positioning rollers, so that the outer layer cylindrical packaging material passes between each group of front inner positioning rollers and front outer positioning rollers.

[0013] Furthermore, an inner layer cylindrical packaging material guide roller is arranged in the discharge end of the inner layer cylindrical packaging material placing cylinder of the inner layer cylindrical packaging material placing mold, so that the inner layer cylindrical packaging material passes through the inner layer cylindrical packaging material guide roller and is pulled out.

[0014] Furthermore, when the inner layer cylindrical packaging material is folded and placed in the inner layer cylindrical packaging material placement mold, the inner layer cylindrical packaging material is folded in a horizontal Z-shape or a vertical N-shape.

[0015] Furthermore, a plurality of upper and lower staggered limit support rollers are arranged at the discharge end of the inner layer cylindrical packaging material placement mold, so that the inner layer cylindrical packaging material pulled out by the inner layer cylindrical packaging material placement mold passes through each limit support roller in turn.

[0016] Furthermore, a frame at the outer cylindrical packaging material expansion position at the inner cylindrical packaging material discharge end is provided with a fixed equipment mounting bracket, a frame before the outer cylindrical packaging material is expanded is provided with a coding and inkjet printing equipment mounting bracket, a front end frame at the feeding end of the double-layer continuous cylindrical packaging material curling roller is provided with a double-layer packaging material encapsulation equipment fixing bracket, a gluing equipment mounting bracket is installed with a gluing equipment, the gluing equipment is used for gluing the inner cylindrical packaging material and the outer cylindrical packaging material before they are sheathed, so that the sheathed inner cylindrical packaging material and the outer cylindrical packaging material are fixedly connected by adhesive to form a packaging material with inner and outer layers integrated and opened as a whole, a coding and inkjet printing equipment mounting bracket is installed with a coding and inkjet printing equipment for marking the gluing position, and a double-layer packaging material encapsulation equipment fixing bracket is provided with a heat sealing machine for heat-sealing the inner cylindrical packaging material and the outer cylindrical packaging material together.

[0017] Furthermore, the double-layer continuous cylindrical packaging material curling roller is replaced by two upper and lower actively driven rollers, each of which is driven to rotate by a driving device, so that the upper and lower actively driven rollers clamp the double-layer continuous cylindrical packaging material and move it to the discharging end of the frame. The discharging end of the frame is also provided with a cutting device for cutting the double-layer continuous cylindrical packaging material after being set.

[0018] The present invention can process double-layer continuous cylindrical packaging materials or packaging bags. The double-layer continuous cylindrical packaging materials are in a state of being continuously sheathed and sealed to be packaging materials that can be used in sections. One end of each section of packaging materials is in a completely sealed or unsealed state, and the other end is a packaging material with inner and outer layers sealed and an overall opening. After cutting, they can be directly processed into packaging bags for packaging use, replacing the existing traditional processing methods of manual segmented sheathing and segmented sealing. Moreover, the processed double-layer continuous cylindrical packaging materials are free of wrinkles and twists. The entire processing process is achieved by winding up the driving device, which improves the continuity of production and greatly improves the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will now be further described with reference to the accompanying drawings.

[0020] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention;

[0021] Figure 2 This is a schematic diagram of the structure of Embodiment 2 of the present invention;

[0022] Figure 3 It is a structural schematic diagram of the tensioning device of the present invention;

[0023] Figure 4 It is a structural schematic diagram of the inner layer tubular packaging material placement mold, the tubular packaging material expansion sleeve positioning device, and the inner layer tubular packaging material guide roller device of the present invention;

[0024] Figure 5 It is a schematic diagram of the structure of the inner layer tubular packaging material of the present invention when it is placed in a Z-shaped folded state;

[0025] Figure 6 It is a schematic diagram of the main structure of the inner layer cylindrical packaging material of the present invention when it is placed in an N-shaped folded state;

[0026] Figure 7 This is a schematic diagram of the structure of the mounting bracket of the device of the present invention;

[0027] Figure 8 This is a schematic diagram of the structure when the present invention uses an actively driven roller;

[0028] Fig. 9 It is a schematic diagram of the three-dimensional structure of the tray of the present invention;

[0029] Fig.10 It is a schematic diagram of the main structure of the inner layer cylindrical packaging material of the present invention when it is placed in an N-shaped folded state. DETAILED DESCRIPTION Example 1

[0030] like Figure 1 , Figure 3 , Figure 4 As shown, a continuous cylindrical packaging material inner and outer layer set and sealing device includes an inner layer cylindrical packaging material placement mold 1, the inner layer cylindrical packaging material is placed in the inner layer cylindrical packaging material placement mold 1, the outer layer cylindrical packaging material wraps and passes through the inner layer cylindrical packaging material placement mold 1, and is set with the inner layer cylindrical packaging material in the inner layer cylindrical packaging material placement mold 1, the inner layer cylindrical packaging material placement mold 1 has a cylindrical body, and the cross-section is an elliptical or polygonal structure.

[0031] It also includes a tubular packaging material expansion sleeve positioning device 2 and an inner tubular packaging material guide roller device 3. The inner tubular packaging material guide roller device 3 is arranged at the discharge end of the inner tubular packaging material placement mold 1, and the tubular packaging material expansion sleeve positioning device 2 is arranged at the pre-pressing positioning roller 4. The end of the frame is provided with a double-layer continuous tubular packaging material winding roller 5 driven to rotate and seal by a driving device, and the front end of the frame is provided with a freely rotatable outer tubular packaging material placement roller 6. The outer tubular packaging material is rolled up on the outer tubular packaging material placement roller 6. The inner tubular packaging material is placed in the inner tubular packaging material placement mold 1 after being rolled up or folded, and the outer tubular packaging material passes through and is sleeved over the inner tubular packaging material placement mold 1. After one end of the inner tubular packaging material is pulled out, it is fitted and sleeved with the outer tubular packaging material passing therethrough, and then passes through the pre-pressing positioning roller 4 and the degassing roller 7 in turn and is rolled up onto the double-layer continuous tubular packaging material winding roller 5;

[0032] The inner layer cylindrical packaging material placement mold 1 comprises an inner layer cylindrical packaging material placement cylinder 101 and a long strip introduction port opened on one side wall or the top of the inner layer cylindrical packaging material placement cylinder 101. The inner layer cylindrical packaging material placement cylinder 101 is the main body of the inner layer cylindrical packaging material placement mold 1. The long strip introduction port of the inner layer cylindrical packaging material placement cylinder 101 is provided with an openable arc plate 102 through a hinge, which is convenient for placing the inner layer cylindrical packaging material. Inner layer cylindrical packaging material support rollers 103 are respectively provided at both ends of the inner layer cylindrical packaging material placement cylinder 101. The rolled inner layer cylindrical packaging material is wound on a closed-loop conveyor belt supported by a plurality of inner layer cylindrical packaging material support rollers 103. An inner layer cylindrical packaging material guide roller 18 is provided in the inner layer cylindrical packaging material placement cylinder 101 of the inner layer cylindrical packaging material placement mold 1, so that the inner layer cylindrical packaging material is pulled out after passing through the inner layer cylindrical packaging material guide roller 18.

[0033] The bottom and both sides of the inner layer tubular packaging material placement mold 1 are respectively provided with guide rollers 12 for support and limitation, the lower surface of the inner layer tubular packaging material placement cylinder 101 is provided with a plurality of hollow roller contact notches 106, and the rotating shafts of a plurality of inner layer tubular packaging material support rollers 103 are slidably arranged up and down in the inner layer tubular packaging material placement cylinder 101, so that the plurality of inner layer tubular packaging material support rollers 103 can move up and down in the inner layer tubular packaging material placement cylinder 101, and the inner layer tubular packaging material placement cylinder 101 above the inner layer tubular packaging material support rollers 103 at each location is respectively provided with a compression roller 105 which is compressed and fixed by a compression spring 104, and the compression roller 105 separates the rolled inner layer tubular packaging material from the double-layer continuous tubular packaging material or the outer layer tubular packaging material passing through the surface of the guide roller 12 The cylindrical packaging material is in close contact, and the inner-layer cylindrical packaging material placement mold 1 can better contact with the guide roller 12 under the action of its own weight and the gravity of the inner-layer cylindrical packaging material, so that the moving double-layer continuous cylindrical packaging material passing through the guide roller 12 and the lower surface of the inner-layer cylindrical packaging material placement cylinder 101 is in contact with the inner-layer cylindrical packaging material, so that the inner-layer cylindrical packaging material is continuously driven by the moving double-layer continuous cylindrical packaging material, that is, the double-layer continuous cylindrical packaging material passing through the roller contact notch 106 gives the inner-layer cylindrical packaging material a horizontal driving force, and the winding direction of the inner-layer cylindrical packaging material is the same as the horizontal force, so that it is easy to pull out the inner-layer cylindrical packaging material in the rolled state, thereby further avoiding the inner-layer cylindrical packaging material being damaged due to excessive winding force at the winding roller 5 of the double-layer continuous cylindrical packaging material;

[0034] The tubular packaging material expansion sleeve positioning device 2 comprises a double-layer continuous tubular packaging material expansion sleeve 201 and a support rod 202. The vertical cross-section of the double-layer continuous tubular packaging material expansion sleeve 201 is a polygon whose outer end is narrower than or equal to the inner end, such as an isosceles trapezoid. The support rod 202 is fixed at the center of the narrower end of the double-layer continuous tubular packaging material expansion sleeve 201. The other end of the support rod 202 is provided with a double-layer continuous tubular packaging material sleeve positioning roller 203 which is symmetrical up and down. The double-layer continuous tubular packaging material sleeve positioning roller 203 is supported between the pre-pressing positioning rollers 4 and is used to pass through the double-layer continuous tubular packaging material. In addition, it also plays a supporting and limiting role, that is, it supports the inner layer tubular packaging material placement mold 1 through the supporting and limiting, so as to facilitate the passing of the double-layer continuous tubular packaging material.

[0035] The inner layer tubular packaging material guide roller device 3 includes an inner layer tubular packaging material guide cylinder 301 and an inner layer tubular packaging material expansion and positioning roller 302. The inner end of the inner layer tubular packaging material guide cylinder 301 is fixedly connected and communicated with one end of the inner layer tubular packaging material placement mold 1. The outer end diameter of the inner layer tubular packaging material guide cylinder 301 is less than or equal to the inner end diameter, and a circle of evenly arranged inner layer tubular packaging material guide wheels 303 are supported on the outer end edge. The inner layer tubular packaging material expansion and positioning roller 302 is located in the inner layer tubular packaging material placement mold 1. When the inner layer tubular packaging material passes through the inner layer tubular packaging material guide wheel 303, the inner layer tubular packaging material can be better turned over through the support of the inner layer tubular packaging material guide wheel 303, thereby reducing the friction resistance of the inner layer tubular packaging material passing through here, thereby better protecting the inner layer tubular packaging material.

[0036] In order to better support the cylindrical packaging material, tensioning devices are respectively arranged at the two ends of the frame body near the double-layer continuous cylindrical packaging material winding roller 5 and the outer cylindrical packaging material placing roller 6. The tensioning device includes a tensioning lever 8 at the bottom and two horizontal reversing rollers 9 located above the tensioning lever 8. One end of the tensioning lever 8 is rotatably arranged in the frame body through a supporting shaft 10, and three tensioning rollers 11 are respectively arranged on the tensioning lever 8. When the cylindrical packaging material passes through the tensioning device, it passes through the tensioning roller 11 at one end, the reversing roller 9, the tensioning roller 11 in the middle, another reversing roller 9, and the tensioning roller 11 at the other end in sequence. The winding method refers to Figure 3 Through the gravity of the tensioning roller 11, the tubular packaging material passing through is always kept in a tensioned state, which can play a good tensioning role.

[0037] The inner layer cylindrical packaging material is discharged in the opposite direction of the outer layer cylindrical packaging material at the discharge end of the inner layer cylindrical packaging material placement mold 1, and the discharge end of the inner layer cylindrical packaging material placement mold 1 faces the outer layer cylindrical packaging material placement roller 6, the inner layer cylindrical packaging material guide roller device 3 is arranged at the discharge end of the inner layer cylindrical packaging material placement mold 1, and the cylindrical packaging material expansion sleeve positioning device 2 is arranged at the other end of the inner layer cylindrical packaging material placement mold 1, and the cylindrical packaging material expansion sleeve positioning device 2 is in contact with the pre-pressing positioning roller 4, and the outer layer cylindrical packaging material passes through the inner layer cylindrical The packaging material guide roller device 3 is expanded into a cylindrical shape and perforated and glued on the inner wall. The inner layer cylindrical packaging material is pulled out and turned over at the discharge end of the inner layer cylindrical packaging material guide roller device 3 and then expanded into a cylindrical shape. It is fitted and sleeved with the outer layer cylindrical packaging material passing here to form a double-layer continuous cylindrical packaging material. Then the double-layer continuous cylindrical packaging material is successively sleeved through the inner layer cylindrical packaging material placement mold 1 and the cylindrical packaging material expansion sleeve positioning device 2, and then passes through the pre-pressing positioning roller 4. After being flattened by the pre-pressing positioning roller 4, it is rolled up by the degassing roller 7 and is wound onto the double-layer continuous cylindrical packaging material winding roller 5.

[0038] The working principle of the present invention is as follows: the outer layer tubular packaging material is rolled up on the outer layer tubular packaging material placement roller 6 (when purchasing the outer layer tubular packaging material, the outer layer tubular packaging material has been rolled up in advance and can be used directly), and then the outer layer tubular packaging material passes through the tensioning device, the degassing roller 7, and the pre-pressing positioning roller 4 in sequence. After passing through the pre-pressing positioning roller 4, the outer layer tubular packaging material is expanded, and the inner layer tubular packaging material is purchased and rolled up, so that the inner layer tubular packaging material can be put on the conveyor belt of the inner layer tubular packaging material placement mold 1. The inner layer tubular packaging material needs to be wound clockwise so that the movement direction of the inner layer tubular packaging material at the bottom is the same as the movement direction of the double-layer continuous tubular packaging material passing through, such as Figure 4 First, the outer end of the inner layer tubular packaging material is manually pulled out and preliminarily turned over, and then it is bonded to the inner side of the outer layer tubular packaging material that has been expanded here to form a double-layer continuous tubular packaging material. Then, the double-layer continuous tubular packaging material is sequentially put through the inner layer tubular packaging material placement mold 1, the tubular packaging material expansion sleeve positioning device 2, and then passes through the pre-pressing positioning roller 4. After being flattened by the pre-pressing positioning roller 4, it is rolled up by the degassing roller 7 and is wound onto the double-layer continuous tubular packaging material winding roller 5. Figure 1 At this time, the driving device (such as a reduction motor, etc.) is started to drive the driving device to drive the double-layer continuous cylindrical packaging material winding roller 5 to rotate, and the double-layer continuous cylindrical packaging material is rolled up. The inner cylindrical packaging material and the outer cylindrical packaging material are continuously pulled by the winding force, and the double-layer continuous cylindrical packaging material is formed after the inner cylindrical packaging material is placed in the mold 1. In this way, the continuous sleeve processing of the inner cylindrical packaging material and the outer cylindrical packaging material is realized, and then a set of rolled double-layer continuous cylindrical packaging materials is formed, which is convenient for users to make packaging bags according to their needs. Example 2

[0039] like Figure 2 , Figure 3 , Figure 4 As shown, a continuous cylindrical packaging material inner and outer layer set and sealing device includes an inner layer cylindrical packaging material placement mold 1, the inner layer cylindrical packaging material is placed in the inner layer cylindrical packaging material placement mold 1, the outer layer cylindrical packaging material wraps and passes through the inner layer cylindrical packaging material placement mold 1, and is set with the inner layer cylindrical packaging material in the inner layer cylindrical packaging material placement mold 1, the inner layer cylindrical packaging material placement mold 1 has a cylindrical body, and the cross-section is an elliptical or polygonal structure.

[0040] The camming roller 2 is provided at the discharge end of the inner layer cylindrical packaging material placement mold 1, and the camming roller 3 is provided at the pre-pressing positioning roller 4. The end of the frame is provided with a double-layer continuous cylindrical packaging material winding roller 5 which is driven to rotate and seal by a driving device, and the front end of the frame is provided with a freely rotatable outer layer cylindrical packaging material placement roller 6. The outer layer cylindrical packaging material is rolled up on the outer layer cylindrical packaging material placement roller 6. The inner layer cylindrical packaging material is placed in the inner layer cylindrical packaging material placement mold 1 after being rolled up or folded, and the outer layer cylindrical packaging material passes through and is covered by the inner layer cylindrical packaging material placement mold 1. After one end of the inner layer cylindrical packaging material is pulled out, it is fitted and covered with the outer layer cylindrical packaging material passing through here, and the inner and outer layers are sealed with an adhesive, and then it passes through the pre-pressing positioning roller 4 and the degassing roller 7 in turn and is rolled up on the double layer continuous cylindrical packaging material winding roller 5.

[0041] The inner layer cylindrical packaging material placement mold 1 comprises an inner layer cylindrical packaging material placement cylinder 101 and a long strip placement opening opened on the side wall or top of one side of the inner layer cylindrical packaging material placement cylinder 101. The long strip placement opening of the inner layer cylindrical packaging material placement cylinder 101 is provided with an openable arc plate 102 through a hinge, so as to facilitate the placement of the inner layer cylindrical packaging material. Inner layer cylindrical packaging material support rollers 103 are respectively provided at both ends of the inner layer cylindrical packaging material placement cylinder 101. The rolled inner layer cylindrical packaging material is wound on a closed-loop conveyor belt supported by a plurality of inner layer cylindrical packaging material support rollers 103. An inner layer cylindrical packaging material guide roller 18 is provided in the inner layer cylindrical packaging material placement cylinder 101 of the inner layer cylindrical packaging material placement mold 1 so that the inner layer cylindrical packaging material is pulled out after passing through the inner layer cylindrical packaging material guide roller 18.

[0042] The bottom and both sides of the inner layer tubular packaging material placement mold 1 are respectively provided with guide rollers 12 for support and limitation, the lower surface of the inner layer tubular packaging material placement cylinder 101 is provided with a plurality of hollow roller contact notches 106, and the rotating shafts of a plurality of inner layer tubular packaging material support rollers 103 are slidably arranged up and down in the inner layer tubular packaging material placement cylinder 101, so that the plurality of inner layer tubular packaging material support rollers 103 can move up and down in the inner layer tubular packaging material placement cylinder 101, and the inner layer tubular packaging material placement cylinder 101 above the inner layer tubular packaging material support rollers 103 at each location is respectively provided with a compression roller 105 which is compressed and fixed by a compression spring 104, and the compression roller 105 separates the rolled inner layer tubular packaging material from the double-layer continuous tubular packaging material or the outer layer tubular packaging material passing through the surface of the guide roller 12 The cylindrical packaging material is in close contact, and the inner-layer cylindrical packaging material placement mold 1 can better contact with the guide roller 12 under the action of its own weight and the gravity of the inner-layer cylindrical packaging material, so that the moving double-layer continuous cylindrical packaging material passing through the guide roller 12 and the lower surface of the inner-layer cylindrical packaging material placement cylinder 101 is in contact with the inner-layer cylindrical packaging material, so that the inner-layer cylindrical packaging material is continuously driven by the moving double-layer continuous cylindrical packaging material, that is, the double-layer continuous cylindrical packaging material passing through the roller contact notch 106 gives the inner-layer cylindrical packaging material a horizontal driving force, and the winding direction of the inner-layer cylindrical packaging material is the same as the horizontal force, so that it is easy to pull out the inner-layer cylindrical packaging material in the rolled state, thereby further avoiding the inner-layer cylindrical packaging material being damaged due to excessive winding force at the winding roller 5 of the double-layer continuous cylindrical packaging material;

[0043] The tubular packaging material expansion sleeve positioning device 2 comprises a double-layer continuous tubular packaging material expansion sleeve 201 and a support rod 202. The vertical cross-section of the double-layer continuous tubular packaging material expansion sleeve 201 is a polygon whose outer end is narrower than or equal to the inner end, such as an isosceles trapezoid. The support rod 202 is fixed at the center of the narrower end of the double-layer continuous tubular packaging material expansion sleeve 201. The other end of the support rod 202 is provided with a double-layer continuous tubular packaging material sleeve positioning roller 203 which is symmetrical up and down. The double-layer continuous tubular packaging material sleeve positioning roller 203 is supported between the pre-pressing positioning rollers 4 and is used to pass through the double-layer continuous tubular packaging material. In addition, it also plays a supporting and limiting role, that is, it supports the inner layer tubular packaging material placement mold 1 through the supporting and limiting, so as to facilitate the passing of the double-layer continuous tubular packaging material.

[0044] The inner layer tubular packaging material guide roller device 3 includes an inner layer tubular packaging material guide cylinder 301 and an inner layer tubular packaging material expansion and positioning roller 302. The inner end of the inner layer tubular packaging material guide cylinder 301 is fixedly connected and communicated with one end of the inner layer tubular packaging material placement mold 1. The outer end diameter of the inner layer tubular packaging material guide cylinder 301 is less than or equal to the inner end diameter, and a circle of evenly arranged inner layer tubular packaging material guide wheels 303 are supported on the outer end edge. The inner layer tubular packaging material expansion and positioning roller 302 is located in the inner layer tubular packaging material placement mold 1. When the inner layer tubular packaging material passes through the inner layer tubular packaging material guide wheel 303, the inner layer tubular packaging material can be better pulled out through the support of the inner layer tubular packaging material guide wheel 303, thereby reducing the friction resistance of the inner layer tubular packaging material passing through here, thereby better protecting the inner layer tubular packaging material.

[0045] In order to better wind up the cylindrical packaging material without stopping, tensioning devices are respectively arranged at the positions of the two ends of the frame body near the double-layer continuous cylindrical packaging material winding roller 5 and the outer cylindrical packaging material placing roller 6. The tensioning device includes a tensioning lever 8 at the bottom and two horizontal reversing rollers 9 located above the tensioning lever 8. One end of the tensioning lever 8 is rotatably arranged in the frame body through a supporting shaft 10, and three tensioning rollers 11 are respectively arranged on the tensioning lever 8. When the cylindrical packaging material passes through the tensioning device, it passes through the tensioning roller 11 at one end, the reversing roller 9, the tensioning roller 11 in the middle, another reversing roller 9, and the tensioning roller 11 at the other end in sequence. The winding method refers to Figure 3 By the gravity of the tensioning roller 11, the tubular packaging material passing through is always kept in a tensioned state, which can achieve good non-stop winding.

[0046] When the discharge direction of the inner layer tubular packaging material at the discharge end of the inner layer tubular packaging material placement mold 1 is the same as the movement direction of the outer layer tubular packaging material, the discharge end of the inner layer tubular packaging material placement mold 1 faces the double-layer continuous tubular packaging material curling roller 5, the inner layer tubular packaging material guide roller device 3 is arranged at the discharge end of the inner layer tubular packaging material placement mold 1, the tubular packaging material expansion sleeve positioning device 2 is separately arranged from the inner layer tubular packaging material placement mold 1, and a middle outer positioning roller 13 and a rear outer positioning roller 14 located on the frame are arranged between the tubular packaging material expansion sleeve positioning device 2 and the inner layer tubular packaging material guide roller device 3, the middle outer positioning roller 13 is in contact with the inner layer tubular packaging material guide roller device 3, and the tubular packaging material expansion sleeve positioning device 2 The discharge end contacts the pre-stressing positioning roller 4, and the rear inner positioning roller 15 arranged at the feed end of the tubular packaging material expansion sleeve positioning device 2 contacts the rear outer positioning roller 14. The outer layer tubular packaging material is sleeved over the feed end of the inner layer tubular packaging material placement mold 1 and expanded into a cylindrical shape. After passing through the inner layer tubular packaging material placement mold 1 and the inner layer tubular packaging material is pulled out at the discharge end of the inner layer tubular packaging material guide roller device 3, it is expanded into a cylindrical shape and directly fits together with the outer layer tubular packaging material passing here to form a double-layer continuous tubular packaging material. Then the double-layer continuous tubular packaging material passes through the tubular packaging material expansion sleeve positioning device 2 in turn, and then passes through the pre-stressing positioning roller 4. After being flattened by the pre-stressing positioning roller 4, it is rolled up onto the double-layer continuous tubular packaging material winding roller 5 through the degassing roller 7.

[0047] The feeding end of the mold 1 for placing the inner layer cylindrical packaging material is provided with evenly arranged front inner positioning rollers 16, and the frame is provided with front outer positioning rollers 17 arranged around the front inner positioning rollers 16, so that the outer layer cylindrical packaging material passes between each group of front inner positioning rollers 16 and front outer positioning rollers 17. The friction force of the cylindrical packaging material passing through is reduced by the front inner positioning rollers 16 and the front outer positioning rollers 17, which is more convenient for production and winding.

[0048] The working principle of the present invention is as follows: the outer layer tubular packaging material is rolled up on the outer layer tubular packaging material placement roller 6 (when purchasing the outer layer tubular packaging material, the outer layer tubular packaging material has been rolled up in advance and can be used directly), and then the outer layer tubular packaging material passes through the tensioning device, the degassing roller 7, the front inner positioning roller 16, the front outer positioning roller 17, the inner layer tubular packaging material placement mold 1, and the inner layer tubular packaging material guide roller device 3 in sequence. When the side wall of the outer layer tubular packaging material passes between the front inner positioning roller 16 and the front outer positioning roller 17, the outer layer tubular packaging material expands, and the inner layer tubular packaging material is purchased and rolled up, and the middle part is left empty, so that the inner layer tubular packaging material can be put on the conveyor belt of the inner layer tubular packaging material placement mold 1. The inner layer of tubular packaging material needs to be wound clockwise so that the movement direction of the inner layer of tubular packaging material at the bottom is the same as the movement direction of the double-layer continuous tubular packaging material passing through. First, the outer end of the inner layer of tubular packaging material is manually pulled out and directly fits with the inner side of the outer layer of tubular packaging material that has expanded here to form a double-layer continuous tubular packaging material. Then, the double-layer continuous tubular packaging material is sequentially passed between the middle outer positioning roller 13 and the double-layer continuous tubular packaging material sleeve positioning roller 203, between the rear inner positioning roller 15 and the rear outer positioning roller 14, and the tubular packaging material expansion sleeve positioning device 2, and then passes through the pre-pressing positioning roller 4, and is flattened by the pre-pressing positioning roller 4 and then rolled up by the degassing roller 7 to the double-layer continuous tubular packaging material winding roller 5, as shown in FIG. Figure 2 At this time, the driving device (such as a reduction motor, etc.) is started to drive the driving device to drive the double-layer continuous cylindrical packaging material winding roller 5 to rotate, and the double-layer continuous cylindrical packaging material is rolled up. The inner layer cylindrical packaging material and the outer layer cylindrical packaging material are continuously pulled by the winding force, and the double-layer continuous cylindrical packaging material is formed after the inner layer cylindrical packaging material is placed in the mold 1. In this way, the continuous sleeve processing of the inner layer cylindrical packaging material and the outer layer cylindrical packaging material is realized, and then a set of rolled and double-layer continuous cylindrical packaging materials is formed, which is convenient for users to make packaging bags according to their needs.

[0049] It should be noted that:

[0050] The guide roller 12 can be driven to rotate by a driving device, so as to provide a certain amount of power to the packaging material passing through the guide roller 12 so that the packaging material can pass through the guide roller more smoothly.

[0051] When the inner layer tubular packaging material is placed in the inner layer tubular packaging material placement mold 1 in a rolled state or a folded state, the inner layer tubular packaging material needs to be folded so that the inner layer tubular packaging material becomes narrower after folding, so as to reduce the diameter or width of the inner layer tubular packaging material placed in the inner layer tubular packaging material placement mold 1. A Z-shaped or N-shaped folding method is adopted, and it can be folded multiple times. For example, the width of the inner layer tubular packaging material (when flattened) is 60 cm, and after folding twice (i.e., Z-shaped folding into three equal parts), the width becomes 20 cm.

[0052] When the inner layer cylindrical packaging material is folded and placed in the inner layer cylindrical packaging material placement mold 1, it is first folded to become narrower, and then folded as a whole for storage, and placed on a pallet with an opening at one end. The folded inner layer cylindrical packaging material is directly received by the pallet through other machines and equipment. The three-dimensional diagram of the pallet is shown in FIG. Fig. 9 In this way, when placing the inner cylindrical packaging material or replacing it, you only need to put in or take out the tray, which is convenient for placement and replacement;

[0053] The inner layer of tubular packaging material is folded horizontally in a Z-shape (such as Figure 5 ) or vertical N-shaped folding, where there are two ways to place the vertical N-shaped folding. The first main view is N-shaped folding, such as Figure 6 , the other is a top view like an N shape, such as Fig.10 The discharge end of the inner layer cylindrical packaging material placing mold 1 is provided with a plurality of limit support rollers 19 which are arranged in an upper and lower staggered manner, so that the inner layer cylindrical packaging material pulled out by the inner layer cylindrical packaging material placing mold 1 passes through each limit support roller 19 in turn. The advantage of placing the inner layer cylindrical packaging material in this way is that the equipment structure is simpler and the cost is lower, but the requirements for the production enterprises providing the inner layer cylindrical packaging materials will be higher, that is, the price of the inner layer cylindrical packaging material may be slightly higher than that of the wound one when purchased, and a suitable choice can be made according to the actual production capacity of the enterprise.

[0054] There are four pre-pressing positioning rollers 4, and four double-layer continuous cylindrical packaging material sleeve positioning rollers 203, two symmetrically located at the top and bottom, and two symmetrically located at the bottom. The double-layer continuous cylindrical packaging material sleeve positioning rollers 203 are clamped by the four pre-pressing positioning rollers 4. Fig.10 As shown, this can limit the placement of the mold 1 for the entire inner layer cylindrical packaging material.

[0055] The frame at the outer layer cylindrical packaging material opening position at the inner layer cylindrical packaging material discharge end position is provided with a fixing device mounting bracket 20, and the frame before the outer layer cylindrical packaging material is opened is provided with a coding and spraying device mounting bracket 21, such as Figure 1 Figure 2The fixed equipment mounting bracket 20 is in the position shown in the figure, the front end frame part of the feeding end of the double-layer continuous cylindrical packaging material curling roller 5 is provided with a double-layer packaging material encapsulation equipment fixing bracket 22, and the fixed equipment mounting bracket 20 is installed with a gluing equipment. The gluing equipment is a prior art and will not be described in detail here. The gluing equipment can drill holes in the outer layer packaging material to allow the glue spraying needle, glue spraying rod or glue spraying nozzle to enter the outer layer cylindrical packaging material and spray the adhesive on the inner side of the outer layer cylindrical packaging material. The gluing equipment is used to glue the inner layer cylindrical packaging material and the outer layer cylindrical packaging material before they are sheathed, so that the sheathed inner layer cylindrical packaging material and the outer layer cylindrical packaging material are fixedly connected by the adhesive. Of course, heating methods can also be used for fixing, such as overclocking, ultrasonic, and ultra-thermal wave heating equipment. The outer cylindrical packaging material is put through a cylindrical mold made of magnetic metal material, and at the same time, through a coil for heating. The inner and outer cylindrical packaging materials are quickly heated indirectly through the cylindrical mold inside the heating coil. In addition, binding equipment, sewing equipment, etc. can also be used as long as the inner and outer cylindrical packaging materials can be fixed. The reason why the gluing equipment is set at the front end of the inner cylindrical packaging material is mainly to facilitate the spraying and gluing of the inner wall of the outer cylindrical packaging material before the outer cylindrical packaging material and the inner cylindrical packaging material are put on the set. At this time, the distance between the inner and outer cylindrical packaging materials is relatively sufficient, which is also convenient for gluing. The heat sealing machine is mainly used for the complete sealing of the two-in-one packaging after the heat sealing set. This equipment can be selected to heat seal or close according to needs;

[0056] The coding and inkjet equipment mounting bracket 21 is installed with the coding and inkjet equipment, and the double-layer packaging material encapsulation equipment fixing bracket 22 is provided with a heat sealing machine for heat-sealing the inner cylindrical packaging material and the outer cylindrical packaging material together. The gluing equipment and the heat sealing machine work intermittently to completely seal one end of the cylindrical packaging material and seal the inner and outer layers at the other end and open as a whole.

[0057] like Figure 8 The double-layer continuous tubular packaging material winding roller 5 is replaced by two upper and lower actively driven rollers 23. Each of the upper and lower actively driven rollers 23 is driven to rotate by a driving device, so that the upper and lower actively driven rollers 23 clamp the double-layer continuous tubular packaging material and move toward the discharging end of the frame. The discharging end of the frame is also provided with a cutting device 24 for cutting the double-layer continuous tubular packaging material after being set. The gluing device, the heat sealer and the cutting device 24 are used together. When the front end is sprayed with glue, the rear part is heat-sealed with a heat sealer at the same time. Through the cutting device 24, a certain section can be cut, especially a section with one end glued and the other end heat-sealed, which is convenient for use. When cutting, the winding device at the back can be closed, and it can be directly cut into a single packaging bag with the inner and outer layers of the upper opening sealed and the whole opening, and the bottom is completely sealed. When cutting, the winding roller 5 of the double-layer continuous tubular packaging material that is wound at the back is closed and does not need to be wound.

[0058] The above description is only an illustrative embodiment of the present invention and is not intended to limit the scope of the present invention. Any equivalent changes and modifications made by any person skilled in the art without departing from the concept and principle of the present invention shall fall within the scope of protection of the present invention.

Claims

1. A device for fitting and sealing inner and outer layers of continuous cylindrical packaging materials, characterized in that: It comprises an inner layer cylindrical packaging material placement mold (1), the inner layer cylindrical packaging material is placed in the inner layer cylindrical packaging material placement mold (1), the outer layer cylindrical packaging material wraps around and passes through the inner layer cylindrical packaging material placement mold (1), and is fitted with the inner layer cylindrical packaging material in the inner layer cylindrical packaging material placement mold (1); It also includes a tubular packaging material expansion sleeve positioning device (2) and an inner layer tubular packaging material guide roller device (3), wherein the inner layer tubular packaging material guide roller device (3) is arranged at the discharge end of the inner layer tubular packaging material placement mold (1), and the tubular packaging material expansion sleeve positioning device (2) is arranged at the pre-pressing positioning roller (4). The end of the frame is provided with a double-layer continuous tubular packaging material curling roller (5) which is driven to rotate and seal by a driving device, and the front end of the frame is provided with a freely rotatable outer layer tubular packaging material placement roller (6). The outer layer cylindrical packaging material is rolled up on the outer layer cylindrical packaging material placement roller (6), and the inner layer cylindrical packaging material is rolled up or folded and placed in the inner layer cylindrical packaging material placement mold (1), and the outer layer cylindrical packaging material passes through and is sleeved over the inner layer cylindrical packaging material placement mold (1), and one end of the inner layer cylindrical packaging material is pulled out and fits together with the outer layer cylindrical packaging material passing therethrough, and the inner and outer layers are sealed with an adhesive, and then the inner and outer layers are successively passed through a pre-pressing positioning roller (4) and a degassing roller (7) and rolled up onto a double-layer continuous cylindrical packaging material winding roller (5); The cylindrical packaging material expansion sleeve positioning device (2) comprises a double-layer continuous cylindrical packaging material expansion sleeve (201) and a support rod (202); the vertical cross-section of the double-layer continuous cylindrical packaging material expansion sleeve (201) is a polygon whose outer end is narrower than the inner end; the support rod (202) is fixed at the center of the narrower end of the double-layer continuous cylindrical packaging material expansion sleeve (201); and the other end of the support rod (202) is provided with a double-layer continuous cylindrical packaging material sleeve positioning roller (203) which is symmetrical in upper and lower directions; The inner layer cylindrical packaging material guide roller device (3) comprises an inner layer cylindrical packaging material guide cylinder (301) and an inner layer cylindrical packaging material expansion and positioning roller (302); the inner end of the inner layer cylindrical packaging material guide cylinder (301) is fixedly connected to and communicated with one end of the inner layer cylindrical packaging material placement mold (1); the outer end diameter of the inner layer cylindrical packaging material guide cylinder (301) is smaller than or equal to the inner end diameter; a circle of inner layer cylindrical packaging material guide wheels (303) arranged evenly are supported on the outer end edge; and the inner layer cylindrical packaging material expansion and positioning roller (302) is located in the inner layer cylindrical packaging material placement mold (1); When the inner layer cylindrical packaging material is discharged in the same direction as the outer layer cylindrical packaging material at the discharge end of the inner layer cylindrical packaging material placement mold (1), the discharge end of the inner layer cylindrical packaging material placement mold (1) faces the double-layer continuous cylindrical packaging material curling roller (5), the inner layer cylindrical packaging material guide roller device (3) is arranged at the discharge end of the inner layer cylindrical packaging material placement mold (1), the cylindrical packaging material expansion sleeve positioning device (2) is separately arranged from the inner layer cylindrical packaging material placement mold (1), and a middle outer positioning roller (13) and a rear outer positioning roller (14) located on the frame are arranged between the cylindrical packaging material expansion sleeve positioning device (2) and the inner layer cylindrical packaging material guide roller device (3), the middle outer positioning roller (13) is in contact with the inner layer cylindrical packaging material guide roller device (3), and the cylindrical packaging material expansion sleeve positioning device (2) is arranged to prevent the inner layer cylindrical packaging material from being damaged. ) contacts the pre-pressing positioning roller (4), the rear inner positioning roller (15) arranged at the feeding end of the tubular packaging material expansion sleeve positioning device (2) contacts the rear outer positioning roller (14), the outer layer tubular packaging material is sleeved through the feeding end of the inner layer tubular packaging material placement mold (1) and expanded into a tubular shape, and passes through the inner layer tubular packaging material placement mold (1), the inner layer tubular packaging material is pulled out at the discharging end of the inner layer tubular packaging material guide roller device (3) and expanded into a tubular shape, and directly fits with the outer layer tubular packaging material passing through here to form a double-layer continuous tubular packaging material, and then the double-layer continuous tubular packaging material passes through the tubular packaging material expansion sleeve positioning device (2) in turn, and then passes through the pre-pressing positioning roller (4), is flattened by the pre-pressing positioning roller (4), and is rolled up onto the double-layer continuous tubular packaging material winding roller (5) through the degassing roller (7).

2. The inner and outer layer set and sealing device of a continuous cylindrical packaging material according to claim 1, characterized in that: The inner layer cylindrical packaging material placement mold (1) has a cylindrical main body and an elliptical or polygonal cross-section.

3. The inner and outer layer set and sealing device of a continuous cylindrical packaging material as claimed in claim 2, characterized in that: When the inner layer cylindrical packaging material is rolled up and placed in the inner layer cylindrical packaging material placement mold (1), the inner layer cylindrical packaging material placement mold (1) comprises an inner layer cylindrical packaging material placement cylinder (101) and a long strip placement opening opened on a side wall or top of one side of the inner layer cylindrical packaging material placement cylinder (101); the inner layer cylindrical packaging material placement cylinder (101) is the main body of the inner layer cylindrical packaging material placement mold (1); an openable arc plate (102) is provided at the long strip placement opening of the inner layer cylindrical packaging material placement cylinder (101) via a hinge; inner layer cylindrical packaging material supporting rollers (103) are respectively provided at both ends of the inner layer cylindrical packaging material placement cylinder (101); and the rolled inner layer cylindrical packaging material is wound on a closed-loop conveyor belt supported by a plurality of inner layer cylindrical packaging material supporting rollers (103).

4. The inner and outer layer set and sealing device of a continuous cylindrical packaging material according to claim 1, characterized in that: Tensioning devices are respectively arranged at the two ends of the frame body near the double-layer continuous cylindrical packaging material curling roller (5) and the outer layer cylindrical packaging material placement roller (6), the tensioning devices comprising a tensioning lever (8) at the bottom and two horizontal reversing rollers (9) located above the tensioning lever (8), one end of the tensioning lever (8) is rotatably arranged in the frame body through a supporting shaft (10), and three tensioning rollers (11) are respectively arranged on the tensioning lever (8).

5. The inner and outer layer set and sealing device of a continuous cylindrical packaging material as claimed in claim 3, characterized in that: Guide rollers (12) for supporting and limiting are respectively arranged at the bottom and both sides of the inner layer cylindrical packaging material placement mold (1), and a plurality of hollow roller contact notches (106) are arranged on the lower surface of the inner layer cylindrical packaging material placement cylinder (101). The rotating shafts of a plurality of inner layer cylindrical packaging material support rollers (103) are arranged in the inner layer cylindrical packaging material placement cylinder (101) to slide up and down, so that the plurality of inner layer cylindrical packaging material support rollers (103) can move up and down in the inner layer cylindrical packaging material placement cylinder (101), and a compression roller (105) that is compressed and fixed by a compression spring (104) is respectively arranged in the inner layer cylindrical packaging material placement cylinder (101) above each inner layer cylindrical packaging material support roller (103). The compression roller (105) brings the rolled inner layer cylindrical packaging material into close contact with the double-layer continuous cylindrical packaging material or the outer layer cylindrical packaging material passing through the surface of the guide roller (12).

6. The inner and outer layer set and sealing device of a continuous cylindrical packaging material according to claim 1, characterized in that: When the inner layer cylindrical packaging material is discharged in a direction opposite to the movement direction of the outer layer cylindrical packaging material at the discharge end of the inner layer cylindrical packaging material placement mold (1), the discharge end of the inner layer cylindrical packaging material placement mold (1) faces the outer layer cylindrical packaging material placement roller (6), the inner layer cylindrical packaging material guide roller device (3) is arranged at the discharge end of the inner layer cylindrical packaging material placement mold (1), the cylindrical packaging material expansion sleeve positioning device (2) is arranged at the other end of the inner layer cylindrical packaging material placement mold (1), and the cylindrical packaging material expansion sleeve positioning device (2) is in contact with the pre-pressing positioning roller (4), and the outer layer cylindrical packaging material passes through the inner layer cylindrical The inner layer of the cylindrical packaging material is expanded into a cylindrical shape by the inner layer of the cylindrical packaging material guide roller device (3) and perforated and glued on the inner wall. The inner layer of the cylindrical packaging material is pulled out and turned over at the discharge end of the inner layer of the cylindrical packaging material guide roller device (3) and expanded into a cylindrical shape. The inner layer of the cylindrical packaging material is fitted together with the outer layer of the cylindrical packaging material passing therethrough to form a double-layer continuous cylindrical packaging material. The double-layer continuous cylindrical packaging material is then sequentially passed through the inner layer of the cylindrical packaging material placement mold (1) and the cylindrical packaging material expansion sleeve positioning device (2), and then passes through the pre-pressing positioning roller (4). After being flattened by the pre-pressing positioning roller (4), the degassing roller (7) is rolled up onto the double-layer continuous cylindrical packaging material winding roller (5).

7. The inner and outer layer covering and sealing device of a continuous cylindrical packaging material according to claim 6, characterized in that: The feeding end of the inner layer cylindrical packaging material placement mold (1) is provided with evenly arranged front inner positioning rollers (16), and the frame is provided with front outer positioning rollers (17) arranged around the front inner positioning rollers (16), so that the outer layer cylindrical packaging material passes between each group of front inner positioning rollers (16) and front outer positioning rollers (17).

8. The inner and outer layer covering and sealing device of a continuous cylindrical packaging material as claimed in claim 3, characterized in that: An inner layer cylindrical packaging material guide roller (18) is arranged in the discharge end of the inner layer cylindrical packaging material placement cylinder (101) of the inner layer cylindrical packaging material placement mold (1), so that the inner layer cylindrical packaging material passes through the inner layer cylindrical packaging material guide roller (18) and is then pulled out.

9. The inner and outer layer covering and sealing device of a continuous cylindrical packaging material according to claim 1, characterized in that: When the inner layer cylindrical packaging material is folded and placed in the inner layer cylindrical packaging material placement mold (1), the inner layer cylindrical packaging material is folded horizontally in a Z-shape or vertically in an N-shape.

10. The inner and outer layer covering and sealing device of a continuous cylindrical packaging material according to claim 9, characterized in that: A plurality of position-limiting support rollers (19) arranged in an up-and-down staggered manner are provided at the discharge end of the inner-layer cylindrical packaging material placement mold (1), so that the inner-layer cylindrical packaging material pulled out by the inner-layer cylindrical packaging material placement mold (1) passes through each position-limiting support roller (19) in sequence.

11. The inner and outer layer covering and sealing device of continuous cylindrical packaging material according to claim 1, characterized in that: The frame at the outer layer cylindrical packaging material opening position at the inner layer cylindrical packaging material discharge end is provided with a fixed equipment installation bracket (20), the frame before the outer layer cylindrical packaging material is opened is provided with a coding and spraying equipment installation bracket (21), the front end frame of the double layer continuous cylindrical packaging material curling roller (5) is provided with a double layer packaging material packaging equipment fixing frame (22), the fixed equipment installation bracket (20) is installed with a gluing device, the gluing device is used to glue the inner layer cylindrical packaging material and the outer layer cylindrical packaging material before they are sheathed, so that the sheathed inner layer cylindrical packaging material and the outer layer cylindrical packaging material are fixedly connected by adhesive, the coding and spraying equipment installation bracket (21) is installed with a coding and spraying equipment for marking the gluing position, and the double layer packaging material packaging equipment fixing frame (22) is provided with a heat sealing machine for heat sealing the inner layer cylindrical packaging material and the outer layer cylindrical packaging material together.

12. The inner and outer layer covering and sealing device of continuous cylindrical packaging material according to claim 1, characterized in that: The double-layer continuous cylindrical packaging material curling roller (5) is replaced by two upper and lower actively driven rollers (23), each of which is driven to rotate by a driving device, so that the upper and lower actively driven rollers (23) clamp the double-layer continuous cylindrical packaging material and move it toward the material discharge end of the frame. The material discharge end of the frame is also provided with a cutting device (24) for cutting the double-layer continuous cylindrical packaging material after being sheathed.

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