Circular weaving machine for producing plastic woven bags

Abstract

The utility model discloses a circular weaving machine for plastic woven bag production, and relates to the technical field of plastic woven bag production. The circular weaving machine comprises a circular weaving machine body, a plurality of groups of warp creels which are uniformly distributed along the peripheral wall are fixed on a frame body outside the circular weaving machine body, a plurality of groups of tension brackets which are uniformly distributed along the peripheral wall are fixed on the frame body between the warp creels and the center of the circular weaving machine body, the plurality of groups of tension brackets are in one-to-one correspondence with the plurality of groups of warp creels, and the warp creels are arranged in a U shape; a cylinder shaft is arranged on the inner side of the warp creel, a positioning round opening is formed in the upper wall of the warp creel in a penetrating mode, and a positioning rod inserted into the positioning round opening is arranged on the upper end face of the cylinder shaft. The positioning rod moves out of the positioning round opening, rotation of the cylinder shaft can be controlled, the woven belt cylinder can be replaced conveniently, meanwhile, the multiple sets of tension frames correspond to the multiple sets of warp frames in a one-to-one mode, and the tension degree of a woven belt can be controlled and adjusted conveniently.

Description

Technical Field

[0001] The utility model belongs to the technical field of plastic woven bag production, and particularly relates to a circular loom for plastic woven bag production. Background Technique

[0002] A woven bag is a kind of plastic bag used for packaging, commonly used in related industries such as industrial and agricultural product packaging, food packaging, and tourism transportation. In the processing of woven bags, a circular loom is required. A circular loom is an industrial device for weaving tubular cloth. There are many spindles on the warp beam of the circular loom. According to the width of the woven cloth and the width of the flat yarn, a specified number of warps are used. Before the warps enter the circular loom, the heddle frame of the warps makes the warps cross and open. The weft shuttle makes a circular motion through the warps in the cross opening to weave into a tubular cloth. After the circular loom pulls the woven tape on the woven tape cylinder, the warp and weft are interlaced to weave into a bag.

[0003] However, in the existing circular looms, since the warp beam does not have the function of quickly opening and closing, each time the woven tape cylinder is replaced, the woven tape cylinder cannot be quickly installed on the warp beam, which will affect the weaving efficiency. At the same time, when using the circular loom to weave woven bags, since the tension of the woven tape cannot be ensured to be stable during the winding process, the woven tape is prone to looseness during the long-term weaving process, thus affecting the compact effect after weaving. For this reason, we provide a circular loom for plastic woven bag production to solve the above problems. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a circular loom for plastic woven bag production. By moving the positioning rod out of the positioning circular opening, the rotation of the cylinder shaft can be controlled, which is convenient for replacing the woven tape cylinder. At the same time, multiple tension frames correspond to multiple warp beams one by one, which is convenient for controlling and adjusting the tension of the woven tape.

[0005] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0006] The utility model is a circular loom for plastic woven bag production, including the circular loom body; multiple warp beams are fixedly arranged on the frame outside the circular loom body along the circumferential wall in a uniformly distributed manner. Multiple tension frames are fixedly arranged on the frame between the warp beam and the center of the circular loom body along the circumferential wall in a uniformly distributed manner, and multiple tension frames correspond to multiple warp beams one by one. The warp beam is arranged in a U shape. A cylinder shaft is arranged at the inner side of the warp beam. A positioning circular opening is penetrated and opened on the upper wall of the warp beam. A positioning rod is arranged on the upper end surface of the cylinder shaft and is inserted into the positioning circular opening.

[0007] The utility model is further arranged such that warp openings are opened on the surface of the vertical part of the warp beam corresponding to the position of the tension frame, and multiple tension frames are fixed on the annular frame body of the circular loom body.

[0008] The present utility model is further configured such that a tensioning cylinder is fixed on the upper end surface of the tensioning frame, and a roller is rotatably connected to the piston end below the tensioning cylinder.

[0009] The present utility model is further configured such that an opening groove communicating with the inside of the positioning round opening is formed on the upper end surface above the warp beam, and the width of the opening groove is smaller than the diameter of the positioning round opening.

[0010] The present utility model is further configured such that a limiting hole is formed on the upper end surface of the bobbin shaft, a moving hole communicating with the inside of the limiting hole is formed inside the bobbin shaft, and the aperture of the moving hole is larger than the aperture of the limiting hole.

[0011] The present utility model is further configured such that a moving rod passing through the inside of the limiting hole is fixed on the lower end surface of the positioning rod, a round block sliding inside the moving hole is fixed on the lower end surface of the moving rod, a spring sleeved on the moving rod is fixed on the upper end surface of the round block, and the upper end surface of the spring abuts against the inner end surface of the moving hole. The diameter of the moving rod is smaller than the width of the opening groove.

[0012] The present utility model is further configured such that a rotating opening is formed at the lower end of the warp beam, and an annular block sleeved on the shaft rod inside the rotating opening is fixed on the lower end surface of the bobbin shaft.

[0013] The present utility model has the following beneficial effects:

[0014] 1. Move the positioning rod upward out of the positioning round opening, and control the bobbin shaft to rotate outwardly inside the warp beam. Thus, the bobbin shaft is exposed in the warp beam. At this time, the knitting tape bobbin can be directly sleeved on the bobbin shaft, and the bobbin shaft is controlled to rotate back to its original position, so that the positioning rod is inserted back into the positioning round opening again, thereby completing the disassembly and replacement of the knitting tape bobbin.

[0015] 2. Control multiple tensioning cylinders to work synchronously. Thus, the tensioning cylinders push the rollers to move slightly downward, and slightly push and squeeze the knitting tape downward, thereby pushing the knitting tape tightly, improving the tension of the knitting tape. And the synchronous work of multiple tensioning cylinders ensures that the tensions of multiple knitting tapes are consistent, and at the same time, it is convenient to control and adjust the tension of the knitting tape. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 It is a schematic structural diagram of the present utility model.

[0018] Figure 2This is a combined view of the warp beam and the bobbin shaft in the present utility model.

[0019] Figure 3 This is an exploded view of the structure of the warp beam and the bobbin shaft in the present utility model.

[0020] Figure 4 This is a structural view of the tensioning frame in the present utility model.

[0021] Figure 5 This is an internal sectional view of the bobbin shaft in the present utility model.

[0022] In the attached drawings, the list of components represented by each reference numeral is as follows:

[0023] 1 - Circular loom body, 2 - Warp beam, 201 - Warp opening, 202 - Positioning circular opening, 203 - Opening groove, 204 - Rotating opening, 3 - Tensioning frame, 301 - Tensioning cylinder, 302 - Roller, 4 - Bobbin shaft, 401 - Ring block, 402 - Positioning rod, 403 - Moving rod, 404 - Circular block, 405 - Spring, 406 - Moving hole, 407 - Limiting hole. Detailed implementation manners

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present utility model.

[0025] Embodiment 1

[0026] Please refer to Figures 1 to 5 , the present utility model is a circular loom for producing plastic woven bags. By moving the positioning rod 402 out of the positioning circular opening 202, the rotation of the bobbin shaft 4 can be controlled, which is convenient for replacing the woven tape bobbin. At the same time, multiple groups of tensioning frames 3 correspond to multiple groups of warp beams 2 one by one, which is convenient for controlling and adjusting the tension of the woven tape.

[0027] Specifically, a circular loom body 1; a plurality of warp frames 2 are fixed on the frame outside the circular loom body 1 and are arranged evenly along the circumferential wall. A plurality of tension frames 3 are fixed on the frame between the warp frame 2 and the center of the circular loom body 1 and are arranged evenly along the circumferential wall. And the plurality of tension frames 3 correspond to the plurality of warp frames 2 one by one. The warp frame 2 is arranged in a U shape. A bobbin shaft 4 is arranged at a position inside the warp frame 2. A positioning circular opening 202 is formed through the upper wall of the warp frame 2. A positioning rod 402 inserted into the positioning circular opening 202 is arranged on the upper end surface of the bobbin shaft 4. A warp opening 201 is formed in the surface of the vertical part of the warp frame 2 corresponding to the position of the tension frame 3. The plurality of tension frames 3 are fixed on the annular frame of the circular loom body 1. A tension cylinder 301 is fixed on the upper end surface of the tension frame 3. A roller 302 is rotatably connected to the piston end below the tension cylinder 301.

[0028] The operation process of this embodiment is as follows: Through the setting and use of the above structure, a plurality of knitting tape cylinders are respectively sleeved on the bobbin shaft 4, and the leading end of one of the knitting tapes is bypassed from the corresponding warp opening 201 and the position of the roller 302 and is used in cooperation with the internal structure of the circular loom body 1. As the fabric is wound, the warp is gradually released to maintain the continuous supply of the warp during the knitting process. The shuttle in the circular loom body 1 carries a weft yarn cylinder and reciprocates in the shed along the circumferential direction to introduce the weft yarn into the shed. In the circular loom body 1, the woven fabric is evenly wound into a roll by the driving roller therein, and at the same time, the winding speed is adjusted to match the knitting speed to ensure the stability of the fabric tension. The weft yarn is usually introduced in a continuous annular manner to ensure that the fabric forms a closed tubular structure. After the weft insertion is completed, since the knitting tape on the warp frame 2 passes through the inside of the weaving orifice, the reed in the circular loom body 1 swings towards the weaving orifice direction to push the newly introduced weft yarn to the edge of the fabric, so that the weft yarn is tightly interwoven with the warp yarn to form a uniform fabric density and a seamless tubular structure, thereby realizing the knitting work of the knitting bag;

[0029] When it is necessary to replace the braided tape cylinder on the warp beam 2 at the same time, the positioning rod 402 is moved upward out of the positioning circular opening 202, and the cylinder shaft 4 is controlled to rotate outwardly inside the warp beam 2. Thus, the cylinder shaft 4 is exposed in the warp beam 2. At this time, the braided tape cylinder can be directly sleeved on the cylinder shaft 4, and the cylinder shaft 4 is controlled to rotate back to its original position, so that the positioning rod 402 is inserted into the positioning circular opening 202 again, thereby completing the disassembly and replacement of the braided tape cylinder. At the same time, when the leading end of the braided tape passes through the lower surface side position of the roller 302 and is connected to the driving roller of the circular loom body 1, during the weaving process, a plurality of tension cylinders 301 are controlled to work synchronously. Thus, the tension cylinders 301 push the roller 302 to move slightly downward, and slightly push the braided tape downward, thereby pushing the braided tape tightly and improving the tension of the braided tape. Moreover, the synchronous work of the plurality of tension cylinders 301 ensures that the tensions of the plurality of braided bags are consistent. At the same time, when the braided tape is pulled and moved, it will drive the roller 302 to rotate on the piston end of the tension cylinder 301, thereby reducing the friction suffered by the braided tape.

[0030] Embodiment 2

[0031] Please refer to Figure 2 、 Figure 3 and Figure 5 Based on Embodiment 1, the position of the round block 404 is ensured by the spring 405, so that the positioning rod 402 is stably located in the positioning circular opening 202, ensuring the stable position of the cylinder shaft 4. At the same time, the cooperation of the moving rod 403 and the opening groove 203 facilitates the control of the rotational movement of the cylinder shaft 4.

[0032] Specifically, an opening groove 203 communicating with the inside of the positioning circular opening 202 is provided on the upper end face of the warp beam 2, and the width of the opening groove 203 is smaller than the diameter of the positioning circular opening 202. A limiting hole 407 is provided on the upper end face of the cylinder shaft 4, and a moving hole 406 communicating with the inside of the limiting hole 407 is provided inside the cylinder shaft 4, and the aperture of the moving hole 406 is larger than the aperture of the limiting hole 407. A moving rod 403 passing through the inside of the limiting hole 407 is fixed to the lower end face of the positioning rod 402, a round block 404 sliding inside the moving hole 406 is fixed to the lower end face of the moving rod 403, a spring 405 sleeved on the moving rod 403 is fixed to the upper end face of the round block 404, and the upper end face of the spring 405 abuts against the inner end face of the moving hole 406. A rotating opening 204 is provided at the lower end of the warp beam 2, and an annular block 401 sleeved on the shaft rod inside the rotating opening 204 is fixed to the lower end face of the cylinder shaft 4.

[0033] The operation process of this embodiment is as follows: Through the setting and use of the above structure, when it is necessary to control the rotation of the cylinder shaft 4, the positioning rod 402 is taken out from the positioning circular opening 202. As a result, the positioning rod 402 will drive the moving rod 403 to be taken out from the limiting hole 407. At the same time, the diameter of the moving rod 403 is smaller than the width of the opening groove 203. Therefore, after the moving rod 403 is located in the positioning circular opening 202, by rotating the cylinder shaft 4 at this time, the moving rod 403 will rotate out from the position of the opening groove 203. At this time, the braided belt cylinder can be sleeved on the cylinder shaft 4. And after controlling the cylinder shaft 4 to rotate and reset, the positioning rod 402 can be directly released. As a result, the spring 405 therein stably pushes the round block 404, so as to improve the stability of the positioning rod 402 in the positioning circular opening 202.

[0034] In the description of this specification, the descriptions referring to the terms "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0035] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and changes can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principle and practical application of the present invention, so that those skilled in the art in the relevant technical field can understand and utilize the present invention well. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A circular loom for producing plastic woven bags, comprising a circular loom body (1); characterized in that: A plurality of groups of warp yarn frames (2) evenly distributed along the circumferential wall are fixed to a frame body outside the circular loom body (1); a plurality of groups of tension frames (3) evenly distributed along the circumferential wall are fixed to a frame body located between the warp yarn frames (2) and the center of the circular loom body (1); and the plurality of groups of tension frames (3) correspond one to one with the plurality of groups of warp yarn frames (2); the warp yarn frames (2) are arranged in a U shape; a barrel shaft (4) is arranged at a position inside the warp yarn frames (2); a positioning circular opening (202) is opened through an upper wall of the warp yarn frames (2); and a positioning rod (402) is arranged on the upper end surface of the barrel shaft (4) and is inserted into a position inside the positioning circular opening (202).

2. A circular loom for producing plastic woven bags according to claim 1, characterized in that: A warp yarn opening (201) is provided on the surface wall of the vertical portion of the warp yarn frame (2) at a position corresponding to the tension frame (3), and a plurality of groups of the tension frames (3) are fixed on the annular frame of the circular loom body (1).

3. A circular loom for producing plastic woven bags according to claim 1, characterized in that: A tensioning cylinder (301) is fixed to the upper end surface of the tension frame (3), and a roller (302) is rotatably connected to the piston end below the tensioning cylinder (301).

4. A circular loom for producing plastic woven bags according to claim 1, characterized in that: An opening groove (203) connected to the inside of the positioning circular opening (202) is provided on the upper end surface of the warp frame (2), and the width of the opening groove (203) is smaller than the diameter of the positioning circular opening (202).

5. A circular loom for producing plastic woven bags according to claim 4, characterized in that: The upper end surface of the cylindrical shaft (4) is provided with a limiting hole (407), and the interior of the cylindrical shaft (4) is provided with a moving hole (406) which is connected to the interior of the limiting hole (407), and the diameter of the moving hole (406) is larger than the diameter of the limiting hole (407).

6. A circular loom for producing plastic woven bags according to claim 5, characterized in that: A moving rod (403) passing through the interior of the limiting hole (407) is fixed to the lower end surface of the positioning rod (402); a round block (404) sliding inside the moving hole (406) is fixed to the lower end surface of the moving rod (403); a spring (405) sleeved on the moving rod is fixed to the upper end surface of the round block (404); and the upper end surface of the spring (405) is in contact with the inner end surface of the moving hole (406); the diameter of the moving rod (403) is smaller than the width of the opening groove (203).

7. A circular loom for producing plastic woven bags according to claim 1, characterized in that: The lower end of the warp rack (2) is provided with a turning opening (204), and the lower end surface of the barrel shaft (4) is fixed with a ring block (401) sleeved on the shaft rod inside the turning opening (204).

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