Automatic stringing device

Abstract

The utility model relates to an automatic stringing device, further comprises a traction cylinder assembly and an edge sealing mechanism, the traction cylinder assembly comprises at least one group of traction cylinders, and the automatic stringing device has the beneficial effects that the automatic stringing device is provided, and the automatic stringing function of a non-woven fabric bag body is realized.

Description

Technical Field

[0001] The utility model specifically relates to an automatic rope threading device. Background Art

[0002] The application of non-woven bag making machines in the field of environmental protection is becoming more and more extensive, and the market demand is growing. However, most of the existing non-woven bag making machines do not have the automatic threading function and require manual operation, which not only increases production costs but also reduces production efficiency. Therefore, the development of a non-woven bag making machine with automatic threading function has become an urgent need in the current market. In the process of developing a threading non-woven bag making machine, the process of "automatic threading" is very important.

[0003] Currently, there are bag making machines that can thread ropes on the market, but they can only thread ropes on plastic bags, and cannot automatically thread ropes on non-woven bags. For example, a Chinese invention patent with publication number "CN102259442B" discloses a rope threading bag making machine that can directly thread a drawstring made of plastic film on a plastic bag.

[0004] The "rope threading and forming device" in the rope threading and bag making machine is used to thread the rope on the plastic bag body. The "rope threading and forming device" is composed of a frame 1, a rocker device 72, a rope threading and folding device 73, a compacting mechanism 74, a relaxing mechanism 75, a steering device 76, and a guide device 77. According to the contents of paragraph 0106 of the specification of the public document, the specific rope threading work is as follows: it needs to be pulled first, and then the rope threading film (the rope threading film does not refer to the plastic bag body, but to the rope body to be inserted) is folded toward the center on both sides, and then the rope threading film is cut into two sides at the center line, and then the two halves of the folded edges are compacted, and then enter the guide device, and finally loaded into the plastic bag body, and the rope threading work is completed.

[0005] The above process is for stringing plastic bags, which cannot be applied to non-woven bags. This is mainly due to the following reasons:

[0006] First of all, the material properties and structural requirements of plastic bags and non-woven bags are different. Plastic bags are usually made of waterproof and moisture-proof plastic materials, with a hard texture and good stiffness and tensile strength. Therefore, when processing plastic bags with drawstrings, the bag making machine mainly considers the characteristics of the plastic material and the design of the drawstring position. Non-woven bags are made of non-woven materials and have the advantages of being soft, breathable, and degradable. The characteristics of non-woven materials are different from those of plastic bags, and its structure is more complicated, requiring special folding and sealing operations. Therefore, when processing non-woven three-dimensional bags with drawstrings, it is necessary to consider the characteristics of non-woven materials and the structural requirements of three-dimensional bags.

[0007] Secondly, the design and processing methods of the rope-threading position of the rope-threading plastic bag and the rope-threading non-woven three-dimensional bag are also different. The rope-threading plastic bag usually has a rope-threading hole at the top or bottom of the plastic bag, through which the rope can be passed to facilitate holding or hanging. The rope-threading non-woven three-dimensional bag has a rope-threading position sewn at a specific position of the non-woven bag to achieve the passing and fixing of the rope. Due to the softness of the non-woven material and the structural requirements of the three-dimensional bag, the rope-threading position design and processing methods of the rope-threading non-woven three-dimensional bag are different from those of the rope-threading plastic bag.

[0008] Finally, the bag making machine for processing plastic bags with drawstrings usually does not have the function of processing non-woven bags with drawstrings. Due to the different material properties and structural requirements of plastic bags and non-woven bags, the bag making machine needs to be adjusted and improved accordingly. The bag making machine for processing non-woven bags with drawstrings needs to take into account the softness of the non-woven material and the structural requirements of the drawstring bags, and has the corresponding folding and sealing devices as well as a drawstring device that adapts to the characteristics of the non-woven material.

[0009] In summary, due to the different material properties and structural requirements of plastic bags and non-woven bags, as well as the differences in the design and processing methods of the rope threading position, in order to meet the market demand for rope threading non-woven three-dimensional bags, it is necessary to develop a rope threading device for processing rope threading non-woven fabrics to realize the specific operation of automatic rope threading for non-woven materials. Summary of the invention

[0010] The technical problem to be solved by the utility model is to provide an automatic rope threading device to realize the automatic rope threading function of a non-woven bag body in view of the deficiencies of the above-mentioned prior art.

[0011] To achieve the above-mentioned purpose, the utility model provides the following technical solution: an automatic rope threading device, including a frame, characterized in that it also includes a traction drum assembly and an edge sealing mechanism, and the traction drum assembly includes at least one set of traction drums.

[0012] By adopting the above technical scheme, the automatic rope threading function of the non-woven bag is realized. The rope body moves to the position of the bag body to be installed under the action of the traction drum, and then the edge sealing mechanism performs hot welding on the folded edge of the bag body to ensure that the rope body is always located in the folded edge of the bag body. Then the rope body can continue to move with the bag body, which is convenient for the next process.

[0013] The automatic rope threading device can be further configured as follows: the traction cylinder assembly includes two groups of traction cylinders arranged opposite to each other up and down, and both ends of the traction cylinders are open and the inside is connected.

[0014] With the above technical solution, after the rope body is first pulled into the traction drum, there is no need to split or fold the rope body, so the traction drum can continuously traction the rope body machine to achieve orderly and stable rope feeding. Furthermore, the rope-threading non-woven three-dimensional bag will be folded in half at the initial stage of processing, and the upper and lower ends of the folded bag body need to be threaded. By setting two sets of traction drums facing each other, the rope threading of the upper and lower ends of the bag body can be achieved at one time, thereby improving production efficiency.

[0015] The above-mentioned automatic rope threading device can be further configured as follows: the traction cylinder includes a feed cylinder portion, the end of the feed cylinder portion is bent and connected to a material guide cylinder portion, the material guide cylinder portion and the feed cylinder portion are parallel to each other and connected to each other, the end of the material guide cylinder portion is located away from the feed cylinder portion and is bent and connected to a discharge cylinder portion, the discharge cylinder portion and the material guide cylinder portion are inclined and connected to each other.

[0016] By adopting the above technical solution, since the end folds of the rope-threaded non-woven fabric three-dimensional bag are all facing the inside of the bag, by setting the traction cylinder in three sections (feeding cylinder, material guiding cylinder, and discharging cylinder) and arranging them according to the above structure, the rope body can be smoothly pulled from the outside to the folded edge of the bag body.

[0017] The automatic rope threading device may be further configured as follows: the material discharging cylinder and the material guiding cylinder are arranged as a whole to be inclined toward the material side relative to the material feeding cylinder.

[0018] By adopting the above technical solution, interference between the traction drum and the bag body can be avoided, and the rope body can be smoothly pulled from the outside to the folded edge of the bag body.

[0019] The automatic rope threading device can be further configured as follows: the edge sealing mechanism includes a welding seat and a rotating welding head, the welding seat is hingedly mounted on the frame and the end of the welding seat is linked to a driving source.

[0020] By adopting the above technical solution, the welding head is set in a rotating form, so that the bag body can be moved and hot-welded at the same time, ensuring that the rope body is within the folded edge of the bag body, thereby improving production efficiency.

[0021] The automatic rope threading device mentioned above can be further configured as follows: a plurality of groups of protrusions are evenly distributed on the outer circumference of the rotating welding head.

[0022] By adopting the above technical solution, a regular hot-welding structure with firm connection is formed.

[0023] The above-mentioned automatic rope threading device can be further configured as follows: the edge sealing mechanism is linked with a position adjustment mechanism, the position adjustment mechanism includes a mounting plate connected to the rotating welding head, the mounting plate is connected with a slider, the slider is slidably connected with a slide rail, and the mounting plate is also linked with a handwheel assembly.

[0024] The above technical solution is adopted to facilitate adjusting the position of the rotating welding head and welding seat according to actual conditions, thereby improving the hot welding quality.

[0025] The automatic rope threading device can be further configured as follows: the frame includes two sets of edge sealing mechanisms, the rotating welding heads in one set of edge sealing mechanisms are distributed at the lower part of the welding seat, and the rotating welding heads in the other set are distributed at the upper part of the welding seat.

[0026] By adopting the above technical solution, if the bag body is folded in half before threading the rope, the folded bag body is not a complete bag body. At this time, it is composed of two layers of bag surface, the upper and lower layers. One group of edge sealing is used to process the lower layer of the bag body, and the other group is used to process the upper layer of the bag body. They cooperate with each other to realize the hot welding of the bag body, and the processing efficiency is greatly improved.

[0027] The automatic rope threading device can be further configured as follows: a spreading mechanism is further provided on the frame, and the spreading mechanism includes a plurality of spreading plates that are distributed parallel to each other.

[0028] By adopting the above technical solution, if the bag body is folded in half before threading the rope, the folded bag body is not a complete bag body, but is composed of two layers of bag surface, and the function of the opening mechanism is to separate the upper and lower layers of bag surface, so as to facilitate the traction tube to enter the folded edge of the bag body to thread the rope.

[0029] The automatic rope threading device can be further configured as follows: the spreading mechanism further includes a support rod connected to the spreading plate, the spreading plate is provided with a strip-shaped connecting hole, and the support rod is provided with a plurality of groups of mounting holes.

[0030] By adopting the above technical solution, the installation position of the opening plate can be adjusted according to actual conditions, so that the bag body can be opened more accurately.

[0031] The utility model is further described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic diagram of the structure of the second embodiment of the present utility model;

[0033] Figure 2 This is a schematic diagram of the structure of the first embodiment of the utility model;

[0034] Figure 3 This is a schematic diagram of a traction drum assembly according to a second embodiment of the present utility model;

[0035] Figure 4 for Figure 1 A partial enlarged schematic diagram in the middle.

[0036] Reference numerals: traction cylinder 1, feed cylinder 11, guide cylinder 12, discharge cylinder 13, edge sealing mechanism 2, welding seat 21, protrusion 211, rotating welding head 22, mounting plate 23, slider 24, slide rail 25, handwheel assembly 26, support plate 3, strip connecting hole 31, support rod 4, mounting hole 41. Implementation

[0037] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0038] Embodiment 1: Figure 2 The automatic rope threading device shown includes a frame, a traction drum assembly, and an edge sealing mechanism 2.

[0039] The traction cylinder assembly includes a set of traction cylinders 1, which include a feed cylinder 11, the end of the feed cylinder 11 is bent and connected to a guide cylinder 12, the guide cylinder 12 and the feed cylinder 11 are parallel to each other and are connected to each other, the end of the guide cylinder 12 is located away from the feed cylinder 11 and is bent and connected to a discharge cylinder 13, the discharge cylinder 13 and the guide cylinder 12 are inclined and connected to each other. Since the end folds of the rope-threaded non-woven three-dimensional bag are all facing the inside of the bag, by setting the traction cylinder 1 in three sections (feed cylinder 11, guide cylinder 12, discharge cylinder 13) and arranging them according to the above structure, the rope body can be smoothly pulled from the outside to the folded edge of the bag body.

[0040] The material discharging cylinder 13 and the material guiding cylinder 12 are arranged as a whole to be inclined toward the material side relative to the material feeding cylinder 11. This avoids interference between the traction cylinder 1 and the bag body, and smoothly pulls the rope body from the outside to the folded edge of the bag body.

[0041] The edge sealing mechanism 2 includes a welding seat 21 and a rotating welding head 22. The welding seat 21 is hingedly mounted on the frame and the end of the welding seat 21 is linked with a driving source, which can be a servo motor. The welding head is set to rotate to achieve hot welding while the bag body is moving, ensuring that the rope body is in the folded edge of the bag body, thereby improving production efficiency. Multiple groups of protrusions 211 are evenly distributed on the periphery of the welding seat 21, forming a regular and firmly connected hot welding structure.

[0042] The edge sealing mechanism 2 is linked with a position adjustment mechanism, which includes a mounting plate 23 connected to the rotating welding head 22, a slider 24 connected to the mounting plate 23, a slide rail 25 slidably connected to the slider 24, and a hand wheel assembly 26 linked to the mounting plate 23. It is convenient to adjust the position of the rotating welding head 22 and the welding seat according to actual conditions to improve the quality of hot welding.

[0043] In the first embodiment, only one set of traction drums 1 and one set of edge sealing mechanism 2 can be provided, and the rope threading work of the non-woven bag body can also be completed. If the bag body does not need to be folded before the rope threading, the bag body material is still a single layer laid flat, and only the end passes through the folded edge (forming a rope threading channel), and the traction drum 1 pulls the rope body into the folded edge. Since the rope body does not need to be split or folded after being pulled into the traction drum 1 for the first time, the traction drum 1 can continuously pull the rope body machine to achieve orderly and stable rope feeding. Then the edge sealing mechanism 2 will perform hot welding on the folded edge, and the rope threading work is completed.

[0044] Embodiment 2: Figure 1 , 3 The automatic rope threading device shown in 4 includes a frame, a traction cylinder assembly, two sets of edge sealing mechanisms 2, and a propping mechanism.

[0045] The traction cylinder assembly includes two groups of traction cylinders 1 arranged opposite to each other up and down, and the two ends of the traction cylinder 1 are open and the inside is connected. The traction cylinder 1 includes a feed cylinder 11, and the end of the feed cylinder 11 is bent and connected to a guide cylinder 12, the guide cylinder 12 and the feed cylinder 11 are parallel to each other and connected to each other, and the end of the guide cylinder 12 is located away from the feed cylinder 11 and is bent and connected to a discharge cylinder 13, and the discharge cylinder 13 and the guide cylinder 12 are inclined and connected to each other. Since the end folds of the rope-threaded non-woven three-dimensional bag are all facing the inside of the bag, by setting the traction cylinder 1 in three sections (feed cylinder 11, guide cylinder 12, discharge cylinder 13) and arranging them according to the above structure, the rope body can be smoothly pulled from the outside to the folded edge of the bag body.

[0046] The discharging cylinder and the guiding cylinder are arranged as a whole to be inclined toward the material side relative to the feeding cylinder 11. This avoids interference between the traction cylinder 1 and the bag body, and smoothly pulls the rope body from the outside to the folded edge of the bag body.

[0047] The edge sealing mechanism 2 includes a welding seat 21 and a rotating welding head 22. The welding seat 21 is hingedly mounted on the frame and the end of the welding seat 21 is linked to a driving source. The welding head is set in a rotating form to realize hot welding while the bag body is moving, ensuring that the rope body is in the folded edge of the bag body, thereby improving production efficiency. A plurality of groups of protrusions 211 are evenly distributed on the outer periphery of the rotating welding head, forming a regular and firmly connected hot welding structure.

[0048] The edge sealing mechanism 2 is linked with a position adjustment mechanism, which includes a mounting plate 23 connected to the rotating welding head 22, a slider 24 connected to the mounting plate 23, a slide rail 25 slidably connected to the slider 24, and a hand wheel assembly 26 linked to the mounting plate 23. It is convenient to adjust the position of the rotating welding head 22 and the welding seat according to actual conditions to improve the quality of hot welding.

[0049] Among them, one group of rotating welding heads 22 in the edge sealing mechanism 2 is distributed at the lower part of the welding seat 21 , and another group of rotating welding heads 22 is distributed at the upper part of the welding seat 21 .

[0050] The opening plate 3 mechanism comprises two sets of opening plates 3 arranged in parallel with each other, a support rod 4 connected with the opening plates 3, a strip connection hole 31 is provided on the opening plate 3, and two sets of mounting holes 41 are provided on the support rod 4. The opening plate 3 mechanism can separate the upper and lower bag surfaces of the folded bag body, so that the traction drum 1 can enter the folded edge of the bag body to thread the rope.

[0051] Embodiment 2 can be used to process "bags that need to be folded before threading the rope". The bag is folded before threading the rope. The folded bag is not a complete bag. It is composed of two layers of bag surface, and the end of each layer of bag surface is folded toward the inner side of the bag body to form a rope threading channel. Before threading the rope, the opening plate 3 separates the upper and lower layers of the bag surface, and then the two groups of traction cylinders 1 facing each other pull the rope to the upper and lower rope threading channels respectively. Next, two groups of edge sealing mechanisms 2 perform hot welding on the folded edges of the upper and lower layers of the bag surface respectively, so that the rope can be threaded at both ends of the bag at one time, thereby improving production efficiency.

Claims

1. An automatic rope threading device, comprising a frame, characterized in that: It also includes a traction cylinder assembly and an edge sealing mechanism, the traction cylinder assembly includes at least one group of traction cylinders, the traction cylinder assembly includes two groups of traction cylinders arranged opposite to each other up and down, the two ends of the traction cylinder are open and the inside is connected, the traction cylinder includes a feed cylinder part, the end of the feed cylinder part is bent and connected with a material guide cylinder part, the material guide cylinder part and the feed cylinder part are parallel to each other and connected to each other, the end of the material guide cylinder part is located away from the feed cylinder part and is bent and connected with a discharge cylinder part, the discharge cylinder part and the material guide cylinder part are inclined and connected to each other.

2. The automatic rope threading device according to claim 1, characterized in that: The material discharging cylinder and the material guiding cylinder are arranged as a whole to be inclined toward the material side relative to the material feeding cylinder.

3. The automatic rope threading device according to claim 1, characterized in that: The edge sealing mechanism comprises a welding seat and a rotating welding head. The welding seat is hingedly mounted on a frame and the end of the welding seat is linked with a driving source.

4. The automatic rope threading device according to claim 3, characterized in that: A plurality of groups of protrusions are evenly distributed on the outer periphery of the rotating welding head.

5. The automatic rope threading device according to claim 3, characterized in that: The edge sealing mechanism is linked with a position adjustment mechanism, which includes a mounting plate connected to the rotating welding head, the mounting plate is connected with a slider, the slider is slidably connected with a slide rail, and the mounting plate is also linked with a hand wheel assembly.

6. The automatic rope threading device according to any one of claims 3 to 5, characterized in that: The frame comprises two groups of edge sealing mechanisms, wherein the rotating welding heads in one group of edge sealing mechanisms are distributed at the lower part of the welding seat, and the rotating welding heads in the other group of edge sealing mechanisms are distributed at the upper part of the welding seat.

7. The automatic rope threading device according to any one of claims 1 to 5, characterized in that: The frame is also provided with a spreading mechanism, which comprises a plurality of spreading plates which are distributed parallel to each other.

8. The automatic rope threading device according to claim 7, characterized in that: The expansion mechanism also includes a support rod connected to the expansion plate, the expansion plate is provided with a strip-shaped connection hole, and the support rod is provided with a plurality of groups of mounting holes.

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