Bag lip limiting mechanism and bag opener

Abstract

The utility model discloses a bag lip limiting mechanism and bag opening machine relates to bag opening machine technical field, and bag lip limiting mechanism includes: equipment frame for placing sewing template, and the inside setting corner cylinder of equipment frame, and the output of corner cylinder is connected to limit baffle, and corner cylinder is used for driving limit baffle to move from initial position to preset position to limit bag lip. The above-mentioned bag lip limiting mechanism has solved the technical problem of lower position adjustment efficiency of limit baffle in the larger stroke of limit baffle in the existing bag lip limiting mechanism. Through corner cylinder direct control drive limit baffle to rise a certain height and then rotate a certain angle, make limit baffle move from initial position to preset position to limit bag lip, reduce the stroke of limit baffle movement, effectively improve the position adjustment efficiency of limit baffle, and quickly realize the function of limiting bag lip.

Description

Technical Field

[0001] This utility model relates to the field of bag opening machine technology, and in particular to a bag lip limiting mechanism and a bag opening machine. Background Technology

[0002] Existing pocket-opening machines sew together three pieces of fabric—the bottom pocket, the lip pocket, and the outer fabric—to form a pocket. For example... Figure 1 As shown, the operator needs to place the bag fabric on the clamp, fold the bottom bag and the bag lip, and place them on the plastic template 330. The machine first cuts the bag fabric and then moves the clamp to the clamping position 310, which is the plastic template 330, so that the bottom bag, bag lip, and bag fabric are overlapped. Then it is moved back for sewing. When using the above-mentioned bag opening machine, the operator needs to place the bottom bag and bag lip correctly according to the adjusted laser infrared light. However, considering that there may still be some deviation, which may lead to defective bags, a bag lip limiting mechanism is added. The limiting baffle 320 is moved to the limiting position of the bag lip by vertical lifting and horizontal movement. When not in use, the limiting baffle 320 is moved out without affecting the cyclic movement of the plastic template 330.

[0003] However, the aforementioned bag lip limiting mechanism is mounted outside the frame, resulting in a large stroke of the limiting baffle, increased action time, and a large overall size of the bag opening machine, leading to significant wasted design space and a large footprint. Therefore, this paper proposes a bag lip limiting mechanism and a bag opening machine to address these issues. Utility Model Content

[0004] The purpose of this utility model is to provide a bag lip limiting mechanism and a bag opening machine, which solves the technical problems of large stroke of the limiting baffle and low position adjustment efficiency of the limiting baffle in the existing bag lip limiting mechanism.

[0005] To achieve the above objectives, this utility model provides a bag lip limiting mechanism, comprising: an equipment frame for placing a sewing template, a corner cylinder disposed inside the equipment frame, the output end of the corner cylinder being connected to a limiting baffle, and the corner cylinder being used to drive the limiting baffle to move from an initial position to a preset position to limit the bag lip.

[0006] Preferably, a mounting base is provided inside the equipment frame, and the mounting base is connected to the corner cylinder by a first fastener.

[0007] Preferably, a first threaded hole is provided on the side of the equipment frame, an ear plate is provided on the mounting base, and a second fastener passes through the ear plate and is threaded into the first threaded hole.

[0008] Preferably, the surface of the mounting base is provided with a strip-shaped hole, and the corner cylinder is provided with a mounting hole that matches the strip-shaped hole. The first fastener passes through the mounting hole and the strip-shaped hole in sequence to fix the corner cylinder to the surface of the mounting base.

[0009] Preferably, the output end of the rotary cylinder is provided with a connecting block, and the other end of the connecting block is connected to an assembly rod via a third fastener. The assembly rod extends along the length direction of the limiting baffle, and the limiting baffle is provided at the second end of the assembly rod.

[0010] Preferably, the first end of the limiting baffle is provided with an assembly groove, the second end of the assembly rod is provided with a second threaded hole, and the third fastener passes through the assembly groove and is threadedly connected to the second threaded hole.

[0011] Preferably, the first end of the assembly rod is provided with an assembly hole for the third fastener to pass through.

[0012] Preferably, the first end of the assembly rod has a notch communicating with the assembly hole, and the first end of the assembly rod has a through mounting hole that passes through the notch, and the locking member is used to insert the locking member.

[0013] Preferably, the limiting baffle is L-shaped, and the bottom surface of the second end of the limiting baffle is lower than the bottom surface of the first end of the limiting baffle.

[0014] A bag opening machine includes the bag lip limiting mechanism described in any of the above claims.

[0015] Compared to the aforementioned background technology, the bag lip limiting mechanism provided by this utility model has the following beneficial effects: By directly controlling the driving limit baffle to rise to a certain height and then rotate it by a certain angle through a rotary cylinder, the limit baffle moves from its initial position to a preset position to limit the bag lip, reducing the travel distance of the limit baffle and effectively improving the position adjustment efficiency of the limit baffle, thus quickly achieving the function of limiting the bag lip. Furthermore, by setting the overall bag lip limiting mechanism inside the equipment frame, the assembly space inside the equipment frame is fully utilized, effectively reducing the maximum external dimensions of the overall bag opening machine, reducing the footprint of the bag opening machine, and achieving a compact and miniaturized design. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0017] Figure 1 This is a three-dimensional structural diagram of a bag lip limiting mechanism in the prior art;

[0018] Figure 2 This is a partial three-dimensional structural view of the limiting baffle in the bag opening machine provided in this embodiment of the utility model when it is in a preset position;

[0019] Figure 3 This is a partial top view of the limiting baffle in the bag opening machine provided in this embodiment of the utility model when it is in a preset position;

[0020] Figure 4 This is a partial top view of the limiting baffle in the bag opening machine provided in this embodiment of the utility model when it is in its initial position;

[0021] Figure 5 A three-dimensional structural diagram of the bag lip limiting mechanism provided in an embodiment of this utility model;

[0022] Figure 6 This is a three-dimensional structural view of the bag lip limiting mechanism provided in an embodiment of the present utility model.

[0023] Specifically, 100-equipment frame; 110-mounting base; 111-ear plate; 112-connecting hole; 113-strip hole; 200-corner cylinder; 210-mounting hole; 220-connecting block; 221-third fastener; 230-assembly rod; 231-notch; 232-mounting hole; 310-clamping position; 320-limiting baffle; 321-assembly groove; 330-plastic template; S1-initial position; S2-preset position. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] like Figure 2 , Figure 3 and Figure 4As shown, to achieve the above objectives, this utility model provides a bag lip limiting mechanism, including: a corner cylinder 200 inside a device frame 100, wherein the device frame 100 is used to place the sewing template, and the output end of the corner cylinder 200 is connected to a limiting baffle 320. The corner cylinder 200 can directly control the limiting baffle 320 to rise to a certain height and then rotate by a certain angle, causing the limiting baffle 320 to move from the initial position S1 to a preset position S2, thereby limiting the bag lip (not shown in the figure), reducing the travel distance of the limiting baffle 320, effectively improving the position adjustment efficiency of the limiting baffle 320, and quickly achieving the function of limiting the bag lip. On the other hand, by setting the overall bag lip limiting mechanism inside the device frame 100, the assembly space inside the device frame 100 can be fully utilized, effectively reducing the maximum external dimensions of the overall bag opening machine, reducing the footprint of the bag opening machine, and achieving a compact and miniaturized design of the bag opening machine.

[0027] It should be noted that when the limiting baffle 320 is in the initial position S1, the limiting baffle 320 does not obstruct the cyclic movement of the plastic template 330. When it is necessary to restrict the bag lip, the corner cylinder 200 is controlled to drive the limiting baffle 320 to rise to a preset height, adjusting the position of the limiting baffle 320 in the height direction. Then, the corner cylinder 200 is controlled to drive the limiting baffle 320 to rotate by a preset angle, adjusting the position of the limiting baffle 320 on the plane, so that the limiting baffle 320 moves from the initial position S1 to the preset position S2, thereby achieving the function of restricting the bag lip.

[0028] like Figure 5 and Figure 6 As shown, in some embodiments of this utility model, a mounting base 110 is provided inside the equipment frame 100. By providing the mounting base 110 inside the equipment frame 100, an assembly base is provided for the corner cylinder 200, ensuring that the corner cylinder 200 can stably drive the limit baffle 320 to complete the lifting and rotating actions, improving the accuracy of the limit baffle 320 in limiting the bag lip; and also improving the flexibility of the corner cylinder 200 arrangement. At the same time, the mounting base 110 is connected to the corner cylinder 200 by a first fastener. Preferably, the first fastener is a bolt. The corner cylinder 200 is detachably connected to the mounting base 110 by the first fastener, which facilitates the installation, debugging, and subsequent maintenance and replacement of the corner cylinder 200, effectively reducing the operation and maintenance cost of the overall bag lip limiting mechanism.

[0029] In some embodiments of this utility model, a first threaded hole is provided on the side of the equipment frame 100, and an ear plate 111 is provided on the mounting base 110. Specifically, a connecting hole 112 is provided on the ear plate 111, and a second fastener passes through the connecting hole 112 and is threadedly connected to the first threaded hole. Preferably, the second fastener is a bolt. The assembly structure formed by the second fastener passing through the connecting hole 112 and the first threaded hole ensures a stable connection between the mounting base 110 and the equipment frame 100. The self-locking characteristic of the threaded connection can resist the vibration and impact force generated when the corner cylinder 200 is working, effectively improving the stability of the corner cylinder 200 when driving the limit baffle 320 to rise, fall, and rotate, thereby improving the accuracy of the limit baffle 320 in limiting the bag lip. At the same time, the threaded connection of the second fastener through the connecting hole 112 to the first threaded hole facilitates the disassembly and assembly of the mounting base 110, making the initial installation and debugging of the corner cylinder 200 and the subsequent maintenance and repair more convenient, further reducing the operation and maintenance cost of the overall bag lip limiting mechanism.

[0030] In some embodiments of this utility model, a strip-shaped hole 113 is provided on the surface of the mounting base 110. The strip-shaped hole 113 extends along a direction perpendicular to the mounting side of the equipment frame 100. Simultaneously, a mounting hole 210 adapted to the strip-shaped hole 113 is provided on the corner cylinder 200. A first fastener passes through the mounting hole 210 and the strip-shaped hole 113 in sequence to fix the corner cylinder 200 to the surface of the mounting base 110. The strip-shaped hole 113 on the surface of the mounting base 110 provides a certain positional adjustment margin for the corner cylinder 200. The corner cylinder 200 can flexibly and finely adjust its mounting position on the mounting base 110 according to the limiting requirements of different bag lip specifications and the assembly dimensions of the plastic template 330, thereby accurately adapting to the preset limiting position of the limiting baffle 320 and effectively improving the adaptability and versatility of the overall bag lip limiting mechanism for various processing scenarios.

[0031] In some embodiments of this utility model, a connecting block 220 is provided at the output end of the corner cylinder 200. When the corner cylinder 200 is vertically set, the connecting block 220 is horizontally arranged. The other end of the connecting block 220 is connected to the assembly rod 230 through a third fastener 221. The assembly rod 230 extends along the length direction of the limiting baffle 320, and the second end of the assembly rod 230 is provided with the limiting baffle 320, so that the lifting and rotating driving force of the corner cylinder 200 can be accurately transmitted to the limiting baffle 320, ensuring the action accuracy of the limiting baffle 320 when limiting the bag lip.

[0032] It should be noted that the design of the assembly rod 230 extending along the length of the limiting baffle 320 allows it to adapt to the length specifications of the limiting baffle 320, resulting in more even force distribution on the limiting baffle 320. This prevents localized stress concentration that could lead to deformation or damage, thereby improving the stability of the limiting baffle 320 in supporting the bag lip and ensuring consistent positioning of the bag lip during sewing. Furthermore, the assembly position of the first end of the limiting baffle 320 along the length of the assembly rod 230 can be flexibly adjusted according to different bag lip width specifications, enhancing the versatility and adaptability of the overall bag lip limiting mechanism.

[0033] In some embodiments of this utility model, the first end of the limiting baffle 320 is provided with an assembly groove 321, which extends to one side of the limiting baffle 320 and is open. The second end of the assembly rod 230 is provided with a second threaded hole. The third fastener 221 on the connecting block 220 passes through the assembly groove 321 and is threadedly connected to the second threaded hole. Preferably, the third fastener 221 is a bolt. The threaded engagement between the third fastener 221 and the second threaded hole utilizes the self-locking characteristic of the threaded connection and the positioning function of the assembly groove 321 to ensure the stability of the connection between the limiting baffle 320 and the assembly rod 230. This helps to resist the vibration of the corner cylinder 200 during operation and the reaction force applied by the bag lip during the limiting baffle 320's limiting of the bag lip, preventing the limiting baffle 320 from becoming loose after long-term use, improving the positional accuracy of the limiting baffle 320, and thus enhancing the consistency of the bag lip sewing.

[0034] Preferably, the assembly rod 230 is provided with three or more second threaded holes along its own length direction, and the assembly slots 321 are provided with three equidistant holes. The three assembly slots 321 are connected to the third fasteners 221 in cooperation with the corresponding second threaded holes. This can provide the limiting baffle 320 with flexible adjustment space along the length direction of the assembly rod 230. According to the width of different specifications of bag lips and the limiting position requirements, the installation position of the limiting baffle 320 can be finely adjusted without replacing the matching assembly rod 230 or limiting baffle 320, thereby improving the versatility and adaptability of the overall bag lip limiting mechanism and reducing the manufacturing cost of the bag lip limiting mechanism.

[0035] In some embodiments of this utility model, the first end of the assembly rod 230 is provided with an assembly hole (not shown in the figure) for the third fastener 221 to pass through. By providing an assembly hole for the third fastener 221 to pass through at the first end of the assembly rod 230, a stable passage and positioning reference are provided for the third fastener 221, ensuring that the third fastener 221 can be accurately aligned and threadedly connected to the second threaded hole. This achieves rapid alignment and assembly of the limiting baffle 320 and the assembly rod 230, effectively reducing the alignment difficulty in the assembly process and improving the assembly efficiency and connection accuracy of the overall bag lip limiting mechanism.

[0036] In some specific embodiments, the first end of the assembly rod 230 has a notch 231 communicating with the assembly hole, and the first end of the assembly rod 230 has a through mounting hole 210, which passes through the notch 231. The locking member is used to pass through the locking member. The notch 231 makes the first end of the assembly rod 230 form an elastic clamping structure to cooperate with the locking effect after the locking member passes through the mounting hole 210. It can generate a certain radial clamping force on the third fastener 221 passing through the assembly hole, enhance the connection stability between the third fastener 221 and the assembly rod 230, effectively resist the vibration and impact when the corner cylinder 200 is working and the reaction force applied by the bag lip during the bag lip limiting process, effectively avoid the phenomenon of loosening of the limiting baffle 320 after long-term use, and ensure the positional accuracy of the limiting baffle 320 and the consistency of the bag lip sewing.

[0037] The notch 231 allows for a larger inner diameter of the mounting hole without the locking action of a locking element. This compensates for dimensional errors between the mounting hole and the third fastener 221 during the mating process, reducing the machining accuracy and assembly alignment difficulty of the mounting rod 230 and the third fastener 221. The locking action of the locking element finely adjusts the inner diameter of the mounting hole to lock the third fastener 221 passing through it, effectively ensuring the reliability of the connection between the connecting block 220 and the mounting rod 230. Furthermore, the notch 231 allows the mounting hole to adapt to the assembly requirements of different specifications of the third fastener 221, improving the versatility of the mounting rod 230 and providing a basis for the modular design of the bag lip limiting mechanism, thereby enhancing the versatility of the bag lip limiting mechanism.

[0038] In some embodiments of this utility model, the limiting baffle 320 is generally L-shaped. Compared with the flat limiting baffle 320, the L-shaped limiting baffle 320 has higher structural rigidity, which can better resist the reaction force when limiting the bag lip, avoid deformation after long-term use, and effectively extend the service life of the limiting baffle 320. In addition, the bottom surface of the second end of the limiting baffle 320 is lower than the bottom surface of the first end of the limiting baffle 320, which enables the limiting baffle 320 to form a stepped limiting structure in the length direction, thereby forming a supporting limiting surface that matches the bag lip in the height direction. This effectively prevents the bag lip from shifting laterally or moving up and down during the sewing process, improving the sewing quality of the bag lip.

[0039] The working principle of this utility model is as follows: In the initial state, the limiting baffle 320 is located in the initial position S1. At this time, the limiting baffle 320 does not hinder the cyclic action of the plastic template 330. When it is necessary to limit the bag lip, the corner cylinder 200 is controlled to drive the corner cylinder 200 inside the equipment frame 100 to start. The corner cylinder 200 first drives the connecting block 220, the assembly rod 230 and the limiting baffle 320 at its output end to rise synchronously to the preset height, adjusting the position of the limiting baffle 320 in the height direction. Then, the corner cylinder 200 is controlled to drive the connecting block 220, the assembly rod 230 and the limiting baffle 320 at its output end to rotate synchronously by the preset angle, adjusting the position of the limiting baffle 320 on the plane. At this time, the limiting baffle 320 moves to the preset position S2, realizing the function of limiting the bag lip.

[0040] In addition to the bag lip limiting mechanism described above, this utility model also provides a bag opening machine that includes the bag lip limiting mechanism disclosed in the above embodiments. For the structure of other parts of the bag opening machine, please refer to the prior art, which will not be repeated here.

[0041] In summary, by directly controlling the corner cylinder 200 to raise the limit baffle 320 to a certain height and then rotate it by a certain angle, the limit baffle 320 moves from the initial position S1 to the preset position S2 to limit the bag lip, reduce the travel of the limit baffle 320, effectively improve the position adjustment efficiency of the limit baffle 320, and quickly achieve the function of limiting the bag lip.

[0042] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0043] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principles of this utility model, and these improvements and modifications also fall within the protection scope of this utility model.

Claims

1. A bag lip limiting mechanism, characterized in that, include: The equipment frame (100) is used to place the sewing template. An angle cylinder (200) is installed inside the equipment frame (100). The output end of the angle cylinder (200) is connected to a limiting baffle (320). The angle cylinder (200) is used to drive the limiting baffle (320) to move from the initial position (S1) to the preset position (S2) to limit the bag lip.

2. The bag lip limiting mechanism according to claim 1, characterized in that, The device frame (100) is provided with a mounting base (110) inside, and the mounting base (110) is connected to the corner cylinder (200) by a first fastener.

3. The bag lip limiting mechanism according to claim 2, characterized in that, The device frame (100) has a first threaded hole on its side, and the mounting base (110) has an ear plate (111) on its side. A second fastener passes through the ear plate (111) and is threaded to the first threaded hole.

4. The bag lip limiting mechanism according to claim 2, characterized in that, The surface of the mounting base (110) is provided with a strip hole (113), and the corner cylinder (200) is provided with a mounting hole (210) that matches the strip hole (113). The first fastener passes through the mounting hole (210) and the strip hole (113) in sequence to fix the corner cylinder (200) on the surface of the mounting base (110).

5. The bag lip limiting mechanism according to claim 1, characterized in that, The output end of the rotary cylinder (200) is provided with a connecting block (220), and the other end of the connecting block (220) is connected to the assembly rod (230) through a third fastener (221). The assembly rod (230) extends along the length direction of the limiting baffle (320), and the second end of the assembly rod (230) is provided with the limiting baffle (320).

6. A bag lip limiting mechanism according to claim 5, characterized in that, The first end of the limiting baffle (320) is provided with an assembly groove (321), the second end of the assembly rod (230) is provided with a second threaded hole, and the third fastener (221) passes through the assembly groove (321) and is threadedly connected to the second threaded hole.

7. A bag lip limiting mechanism according to claim 5, characterized in that, The first end of the assembly rod (230) is provided with an assembly hole for the third fastener (221) to pass through.

8. A bag lip limiting mechanism according to claim 7, characterized in that, The first end of the assembly rod (230) has a notch (231) that communicates with the assembly hole, and the first end of the assembly rod (230) has a through mounting hole (210) that passes through the notch (231). The locking member is used to insert the locking member.

9. A bag lip limiting mechanism according to any one of claims 1-8, characterized in that, The limiting baffle (320) is generally L-shaped, and the bottom surface of the second end of the limiting baffle (320) is lower than the bottom surface of the first end of the limiting baffle (320).

10. A bag-opening machine, characterized in that, The bag lip limiting mechanism includes any one of claims 1-9 above.

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