Bag opening tightening device

Abstract

The utility model provides a bag opening tightening device, and relates to the field of automatic packaging. The bag opening tightening device comprises a moving seat, a bag opening clamping module and an opening tightening module, two sets of lifting adjusting mechanisms used for conducting lifting adjustment on the bag opening clamping module and the opening tightening module are symmetrically arranged on the upper surface of the moving seat, and a feeding mechanism is arranged on the middle section of the moving seat; the lifting adjusting mechanism comprises a sliding seat and a connecting seat fixedly connected to the upper surface of the sliding seat, and a thread transmission mechanism in transmission with a screw of the sliding seat is arranged in the connecting seat. According to the bag opening tightening device, through the arrangement of the two sets of lifting adjusting mechanisms, namely the cooperative use of the connecting base, the threaded transmission mechanism and the sliding base, stable lifting adjustment can be conducted on the use of the bag opening clamping module and the opening tightening module, then the bag opening tightening device can dynamically adapt to various bag types (such as fungus bags and ton bags), the traditional manual clamp replacement process is replaced, and the labor intensity of workers is relieved. And the applicability of the device in use is improved.

Description

Technical Field

[0001] This application relates to the field of automated packaging technology, specifically a bag-sealing device. Background Technology

[0002] In the field of automated packaging, bag-sealing equipment is widely used in industries such as food, chemicals, and agriculture.

[0003] A search revealed that patent CN213324023U discloses an automatic ton bag sealing device. This device consists of a clamping plate, a cylinder, a rotating disc, a frame, a bag mouth clamp, and a conveyor belt. The ton bags from the previous process are transported to this process via the conveyor belt and bag mouth clamp. The clamping plate, activated by the cylinder, clamps the bag mouth. The bag mouth clamp then retracts from the workstation, and the rotating disc rotates 1.5 revolutions to close the bag mouth. The conveyor belt is extendable; after closing, it extends to tighten the closed bag mouth, completing the sealing process. The conveyor belt then retracts into the frame, and the rotating disc rotates 1.5 revolutions in the opposite direction. The cylinder then releases the clamping plate, completing the sealing process. The conveyor belt then exits the workstation, achieving automatic robotic sealing.

[0004] While the existing technology can achieve the sealing of ton bags or small mushroom bags, in actual use, the positions of the clamps and automatic sealing equipment are often fixed and cannot be dynamically adjusted according to the height of the bag. When dealing with different packaging sizes such as ton bags and small mushroom bags, it is necessary to manually change the clamps or adjust the production line layout, which is not very applicable. Therefore, a bag sealing device is provided. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this application provides a bag-sealing device that solves the problems mentioned in the background section.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this application provides the following technical solution: a bag-sealing device, comprising a movable seat, a bag-sealing module, and a sealing module. Two sets of lifting and adjusting mechanisms for adjusting the bag-sealing module and the sealing module are symmetrically arranged on the upper surface of the movable seat. A feeding mechanism is provided in the middle section of the movable seat. The lifting and adjusting mechanism includes a sliding seat and a connecting seat fixedly connected to the upper surface of the movable seat. A threaded transmission mechanism that drives the screw of the sliding seat is provided inside the connecting seat. The feeding mechanism includes multiple sets of transmission belts and two sets of hinged flaps hinged to both sides of the movable seat. Mounting grooves are provided in the middle section of the movable seat and on the inner side of the hinged flaps. The multiple sets of transmission belts are embedded in the multiple sets of mounting grooves.

[0009] By adopting the above technical solution, the movable seat serves as the integrated base, and the symmetrically arranged lifting and adjusting mechanism drives the bag mouth clamping module and the sealing module to lift and adjust. The feeding mechanism unfolds through the hinged flip plate to form an extended working surface, and the transmission belt embedded in the mounting groove constructs a low-friction conveying channel to reduce the risk of bag damage.

[0010] Preferably, the threaded transmission mechanism includes a servo motor fixedly installed on the top of the connecting seat and three sets of limiting slide grooves opened inside the connecting seat. Guide rods are fixedly installed inside two sets of the limiting slide grooves, and a threaded shaft is rotatably connected inside one set of the limiting slide grooves, with the top end of the threaded shaft fixedly connected to the output end of the servo motor.

[0011] By adopting the above technical solution, the rotational motion is converted into linear displacement by driving the threaded shaft with a servo motor. Two of the three sets of limiting slides are equipped with guide rods to limit the offset, and one set accommodates the threaded shaft.

[0012] Preferably, the upper surface of the sliding seat is provided with a platform that is bolted to the bag opening clamping module and the tying module, and the outer side of the sliding seat is provided with three sets of connecting blocks that are slidably connected to the limiting slide groove. Two sets of the connecting blocks are sleeved and connected to the guide rod, and one set of the connecting blocks is threaded and connected to the threaded shaft.

[0013] By adopting the above technical solution, the three sets of connecting blocks and the limiting slide groove form a limiting constraint, and the bolt connection table on the top of the sliding seat supports quick disassembly and replacement of the clamping / tying module.

[0014] Preferably, the bag opening clamping module includes a clamping device for clamping the bag opening and a connecting plate bolted to the sliding seat. A rotary motor is fixedly installed on the top of the connecting plate at the end away from the sliding seat. The output end of the rotary motor passes through the connecting plate and is fixedly connected to the clamping device.

[0015] By adopting the above technical solution, the clamping device can be directly driven to perform rotational operations by turning on the rotary motor.

[0016] Preferably, the sealing module includes an automatic sealing device for sealing the bag opening and a mounting base bolted to the sliding seat. An electric telescopic rod is fixedly connected to the outside of the mounting base, and one telescopic end of the electric telescopic rod is fixedly connected to the automatic sealing device.

[0017] By adopting the above technical solution, after the clamping module has fixed the bag opening, the automatic sealing device can be pushed to the working distance by extending the electric telescopic rod to complete the sealing process of the bag opening.

[0018] Preferably, each of the hinged flaps is fixedly equipped with a reinforcing handle. The reinforcing handle abuts against the ground after the hinged flap is unfolded. A limit slot is opened on the side of the hinged flap, and multiple sets of limit blocks are symmetrically arranged on the upper surface of the movable seat. Each set of limit blocks is threaded with a limit bolt, and one threaded end of the limit bolt engages with the limit slot.

[0019] By adopting the above technical solution, after the hinged flap is unfolded, the handle is reinforced to touch the ground to form a three-point support, which facilitates the feeding of materials into the working position on the mobile seat. In addition, during the transfer of the device, the hinged flap can be folded vertically and a mechanical interlock is formed by screwing the limit bolt into the limit slot to prevent the hinged flap from being accidentally unfolded during the movement and storage of the device.

[0020] (III) Beneficial Effects

[0021] This application provides a bag-sealing device. It has the following beneficial effects:

[0022] 1. This bag-sealing device, through the combination of two sets of lifting and adjusting mechanisms, namely the connecting seat, the threaded transmission mechanism and the sliding seat, can achieve stable lifting and adjusting of the bag-sealing module and the bag-sealing module, thus dynamically adapting to various bag types (such as mushroom bags and ton bags), replacing the traditional manual clamp replacement process, and improving the applicability of the device in use.

[0023] 2. This bag-sealing device features a bag-holding module and a sealing module that are detachably installed and used via bolts to a sliding seat. This modular design, compared to traditional integrated equipment, facilitates maintenance and module replacement by operators, reducing downtime for maintenance during operation.

[0024] 3. The bag-sealing device, through the cooperation of the movable seat and the feeding mechanism, can be easily moved and transferred. Furthermore, through the cooperation of the two sets of flip-up hinged flaps in the feeding mechanism and the transmission belt, it can facilitate convenient transfer operations. Attached Figure Description

[0025] 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the overall external structure of this application;

[0027] Figure 2 This is a schematic diagram of the partial cross-sectional shape of the connector in this application;

[0028] Figure 3 This is a top view of the structure of this application;

[0029] Figure 4 This is a schematic diagram of the main view structure of this application;

[0030] Figure 5 This is a side view structural diagram of this application.

[0031] In the diagram: 1. Movable seat; 2. Lifting and adjusting mechanism; 201. Connecting seat; 202. Limiting slide groove; 210. Servo motor; 211. Threaded shaft; 212. Guide rod; 220. Sliding seat; 221. Connecting block; 3. Bag opening clamping module; 301. Connecting plate; 310. Rotary motor; 320. Clamping device; 4. Closing module; 401. Mounting seat; 402. Electric telescopic rod; 410. Automatic closing device; 5. Feeding mechanism; 501. Hinged flip plate; 502. Limiting slot; 510. Mounting groove; 520. Transmission belt; 530. Limiting block; 531. Limiting bolt. Detailed Implementation

[0032] The present application will be further described in detail below with reference to the accompanying drawings and embodiments.

[0033] Reference Figures 1 to 5This application provides a bag-sealing device, including a movable base 1, a bag-holding module 3, and a sealing module 4. Two sets of lifting adjustment mechanisms 2 are symmetrically arranged on the upper surface of the movable base 1 for adjusting the height of the bag-holding module 3 and the sealing module 4. A feeding mechanism 5 is provided in the middle section of the movable base 1. The lifting adjustment mechanism 2 includes a sliding base 220 and a connecting base 201 fixedly connected to the upper surface of the movable base 1. A threaded transmission mechanism that drives the screw of the sliding base 220 is provided inside the connecting base 201. The feeding mechanism 5 includes multiple sets of transmission belts 520 and two sets of hinged flaps 501. The two sets of hinged flaps 501 are hinged to both sides of the movable base 1. Installation openings are provided in the middle section of the movable base 1 and on the inner side of the hinged flaps 501. The groove 510 and multiple sets of transmission belts 520 are embedded in the multiple sets of mounting grooves 510. Through the cooperation of sliding seats 220 and bolts, the bag mouth clamping module 3 and the sealing module 4 can be independently installed in the two sets of lifting adjustment mechanisms 2 respectively. Through the lifting and lowering of the sliding seats 220 in the lifting adjustment mechanism 2, the bag mouth clamping module 3 and the sealing module 4 can be stably adjusted, so as to dynamically adapt to various bag types. In the use of the device, through the cooperation of the moving seat 1 and the feeding mechanism 5, the device can be easily moved and transferred. Through the cooperation of the two sets of flip-out hinged flaps 501 in the feeding mechanism 5 and the transmission belts 520, the device can be conveniently transferred.

[0034] Reference Figure 1 , Figure 2 and Figure 4 In one aspect of this embodiment, the threaded transmission mechanism includes a servo motor 210 fixedly mounted on the top of the connecting seat 201 and three sets of limiting slide grooves 202 opened inside the connecting seat 201. Guide rods 212 are fixedly mounted inside two sets of limiting slide grooves 202, and a threaded shaft 211 is rotatably connected inside one set of limiting slide grooves 202. The top end of the threaded shaft 211 is fixedly connected to the output end of the servo motor 210. The lifting adjustment mechanism 2 is directly controlled by an electronic handwheel connected in series with the servo motor 210.

[0035] The upper surface of the sliding seat 220 is provided with a platform that is bolted to the bag opening clamping module 3 and the sealing module 4. The outer side of the sliding seat 220 is provided with three sets of connecting blocks 221 that are slidably connected to the limiting slide groove 202. Two sets of connecting blocks 221 are sleeved and connected to the guide rod 212, and one set of connecting blocks 221 is threadedly connected to the threaded shaft 211. When the device is in use, the bag opening clamping module 3 and the sealing module 4 are fixed to the two sets of sliding seats 220 by bolts. By opening the servo motor 210 in the lifting adjustment mechanism 2, the threaded shaft 211 and one set of connecting blocks 221 can be driven by screw transmission, thereby driving the sliding seat 220, which is equipped with the bag opening clamping module 3 and the sealing module 4, to lift and adjust under the limitation of the limiting slide groove 202 and the guide rod 212.

[0036] Reference Figures 2 to 4 In one aspect of this embodiment, the bag opening clamping module 3 includes a clamping device 320 for clamping the bag opening and a connecting plate 301 bolted to the sliding seat 220. A rotary motor 310 is fixedly installed on the top of the connecting plate 301 at the end away from the sliding seat 220. The output end of the rotary motor 310 passes through the connecting plate 301, and the output end of the rotary motor 310 is fixedly connected to the clamping device 320.

[0037] The sealing module 4 includes an automatic sealing device 410 for sealing the bag opening and a mounting base 401 bolted to the sliding seat 220. An electric telescopic rod 402 is fixedly connected to the outside of the mounting base 401. One end of the electric telescopic rod 402 is fixedly connected to the automatic sealing device 410. The automatic sealing device 410 can be a pneumatic sealing machine CC1616, and the clamping device 320 can be a CHUNKWDP-5X-DSM clamping module, controlled by a programmable logic controller (the operation process is as follows: the bag arrives at the workstation, the clamping device 320 is controlled to clamp the bag opening, the rotary motor 310 is driven to start sealing the bag opening, and the electric...). The telescopic rod 402 extends to drive the automatic sealing device 410 to the workstation, and the automatic sealing device 410 performs the sealing operation. The programmable logic controller can be a Siemens S7-1200 PLC or a Xinje XD5 series PLC. When this device is in use, the clamping device 320 can limit the bag opening. During this process, the opening of the rotary motor 310 can drive the clamping device 320 to rotate and complete the sealing of the bag opening. After the bag opening clamping module 3 has completed the bag opening fixation, the extension of the electric telescopic rod 402 can push the automatic sealing device 410 to the working distance to complete the sealing of the bag opening.

[0038] Reference Figure 1 and Figure 5 In one aspect of this embodiment, a reinforcing handle is fixedly installed on the outer side of the hinged flap 501. After the hinged flap 501 is unfolded, the reinforcing handle contacts the ground. A limiting slot 502 is provided on the side of the hinged flap 501, and multiple sets of limiting blocks 530 are symmetrically arranged on the upper surface of the movable seat 1. Each set of limiting blocks 530 is internally threaded with a limiting bolt 531. One threaded end of the limiting bolt 531 engages with the limiting slot 502. When the device is in use, the limiting bolt 531 rotates outward, releasing the limiting on the hinged flap 501. This allows the hinged flap 501 to be unfolded to cooperate with the transmission belt 520 in constructing a low-friction conveying channel, reducing the risk of damage to bags entering and exiting the workstation. During this process, the reinforcing handle, after the hinged flap 501 is unfolded, contacts the ground, forming a point support, thus providing stable support for the use of the hinged flap 501 (the process can also be reversed to fold the hinged flap 501).

[0039] All electrical devices in this plan are powered by an external power source.

[0040] Working principle: When using this bag-sealing device, the device should first be moved to the required position via the movable base 1. Based on the required bag size, the height of the bag-holding module 3 and the sealing module 4 should be pre-adjusted via the lifting adjustment mechanism 2 (i.e., by activating the servo motor 210 in the lifting adjustment mechanism 2, the threaded shaft 211 and a set of connecting blocks 221 are driven by a screw, thereby driving the bag-holding module 3 and the sealing module 4 to be raised and lowered). Then, by rotating the outward displacement limit bolt 531, the hinged flaps 501 on both sides of the movable base 1 are flipped out to complete the pre-use preparation of the device. In preparation, when this device is in use, the cooperation of multiple sets of transmission belts 520 and hinged flaps 501 in the feeding mechanism 5 can create a low-friction conveying channel, which allows bags with the required bag openings to enter and exit the work station. After the bag enters the top work station of the moving seat 1, the bag opening can be limited and clamped by the clamping device 320. By turning on the rotary motor 310, the clamping device 320 can be driven to rotate, thus completing the bag opening limit. During this process, the extension of the electric telescopic rod 402 in the sealing module 4 can push the automatic sealing device 410 to the working distance to complete the sealing of the bag opening.

[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0042] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bag mouth fastening device, comprising a moving seat (1), a bag mouth clamping module (3) and a mouth fastening module (4), characterized in that: The upper surface of the movable seat (1) is symmetrically provided with two sets of lifting adjustment mechanisms (2) for adjusting the lifting of the bag mouth clamping module (3) and the sealing module (4). The middle section of the movable seat (1) is provided with a feeding mechanism (5). The lifting adjustment mechanism (2) includes a sliding seat (220) and a connecting seat (201) fixedly connected to the upper surface of the movable seat (1). The connecting seat (201) is provided with a threaded transmission mechanism that drives the screw of the sliding seat (220). The feeding mechanism (5) includes multiple sets of transmission belts (520) and two sets of hinged flaps (501) that are hinged to both sides of the movable seat (1). The middle section of the movable seat (1) and the inner side of the hinged flaps (501) are provided with mounting grooves (510). The multiple sets of transmission belts (520) are embedded in the multiple sets of mounting grooves (510).

2. A bag mouth cinching device according to claim 1, characterized in that: The threaded transmission mechanism includes a servo motor (210) fixedly installed on the top of the connecting seat (201) and three sets of limiting slides (202) opened inside the connecting seat (201). Guide rods (212) are fixedly installed inside two sets of limiting slides (202), and a threaded shaft (211) is rotatably connected inside one set of limiting slides (202). The top end of the threaded shaft (211) is fixedly connected to the output end of the servo motor (210).

3. A bag mouth cinching device according to claim 2, wherein: The upper surface of the sliding seat (220) is provided with a platform that is bolted to the bag opening clamping module (3) and the tying module (4), and the outer side of the sliding seat (220) is provided with three sets of connecting blocks (221) that are slidably connected to the limiting slide groove (202). Two sets of the connecting blocks (221) are sleeved and connected to the guide rod (212), and one set of the connecting blocks (221) is threadedly connected to the threaded shaft (211).

4. A bag mouth cinching device according to claim 1, characterized in that: The bag opening clamping module (3) includes a clamping device (320) for clamping the bag opening and a connecting plate (301) bolted to the sliding seat (220). A rotary motor (310) is fixedly installed on the top of the connecting plate (301) at the end away from the sliding seat (220). The output end of the rotary motor (310) passes through the connecting plate (301) and is fixedly connected to the clamping device (320).

5. A bag-sealing device according to claim 4, characterized in that: The sealing module (4) includes an automatic sealing device (410) for sealing the bag opening and a mounting base (401) bolted to the sliding seat (220). An electric telescopic rod (402) is fixedly connected to the outside of the mounting base (401), and one end of the electric telescopic rod (402) is fixedly connected to the automatic sealing device (410).

6. A bag-sealing device according to claim 1, characterized in that: The hinged flap (501) is fixedly equipped with a reinforcing handle on its outer side. The reinforcing handle abuts against the ground after the hinged flap (501) is unfolded. The hinged flap (501) has a limit slot (502) on its side. The upper surface of the movable seat (1) is symmetrically provided with multiple sets of limit blocks (530). The multiple sets of limit blocks (530) are threadedly connected to limit bolts (531). One threaded end of the limit bolt (531) engages with the limit slot (502).

Images