Coaxially-driven rapid bag making machine
By using a coaxially driven bag-pulling and pressing claw device, the problem of the film bag tail curling up is solved, realizing efficient production without needle punctures, simplifying the equipment structure, and improving production stability and efficiency.
Patent Information
- Application Number
- CN202423316163.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2034-12-31
AI Technical Summary
In existing bag-making machines, the tail of the film bag is prone to curling up during the synchronous operation of the hot cutting knife, causing production interference. It is also necessary to puncture the bag with a needle to prevent it from curling up, which affects product quality and production efficiency.
The bag-feeding mechanism and the pressure claw device are driven by a coaxial drive. The feeding is paused after the hot shearing by the lever mechanism. The lever separates the film bag from the hot shearing device, and the pressure claw device presses the tail of the film bag to prevent it from sticking up and reduce the need for needle fixation.
It enables needle-free film bag production, improves production stability and efficiency, simplifies equipment structure, reduces the use of drive sources, and ensures smooth conveying of the film bag tail.
Smart Images
Figure CN223750385U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of film bag manufacturing, and particularly relates to a coaxial driving rapid bag making machine. BACKGROUND
[0002] The full-automatic bag making machine is driven by a servo motor to control the feeding and the length of bag feeding, driven by a frequency conversion motor to move the heating cutting knife up and down to cut the bag, and a silicone rubber roller is installed below the heating cutting knife as a supporting roller. The film roll material is heated and cut off, and then conveyed forward. The finished product is pressed by the front bag pressing device. Usually, a device is needed to separate the bag from the film roll. The device is usually a ring-shaped chain that is evenly divided into three sections of the same distance. Three bag pushing rods are fixed in the chain. The device is driven by the main transmission shaft of the bag making machine to drive the chain to move synchronously. During the working process, the heating cutting knife rotates synchronously with the chain. When the front bag pressing device presses the film bag, the tail of the bag is often raised and easily interferes with the product produced later. Therefore, a cold and hot needle is usually arranged on the bag pressing device to pierce the tail of the bag, so as to ensure that the bag can be effectively stacked and the tail is not raised. Each bag will have a pierced hole, and some bags cannot be pierced and damaged, so the fast bag making machine cannot be used to produce such bags. SUMMARY
[0003] The utility model provides a coaxial driving rapid bag making machine, through drive motor A drive bag pushing mechanism, set rotation pause time in the motion process of the pole mechanism, utilize pause time and carry out feeding, through the bag pushing mechanism after the completion of the hot shearing, the film bag is separated with the hot shearing device, again through the pressure claw mechanism and press the tail of the bag that the bag pressing device clamped, like this can not need to use the needle and fix.
[0004] The utility model discloses a coaxial driving rapid bag making machine, through the following technical scheme realizes:
[0005] A coaxial driving rapid bag making machine, including the frame, the frame is provided with the hot shearing device, the bag pressing device along the material transmission direction, be provided with the bag pushing mechanism, the pressure claw device on the frame, the bag pushing mechanism, the pressure claw device coaxial drive, the bag pushing mechanism sets up between the hot shearing device with the bag pressing device, for the finished product with the subsequent material of the hot shearing device and push apart, the pressure claw device sets up in the bag pushing mechanism and is used for the film bag tail end on the bag pressing device and is pressed tightly.
[0006] Further, the bag pushing mechanism comprises a rotary chain, a first rotating shaft, a second rotating shaft, and a pushing rod, the first rotating shaft and the second rotating shaft are rotationally connected to the frame, chain wheels are arranged on the first rotating shaft and the second rotating shaft, the rotary chain is in meshing transmission with the chain wheels, two rotary chains are arranged, and a plurality of pushing rods are uniformly and fixedly connected between the two rotary chains.
[0007] Further, the distance between the two adjacent pushing rods is equal to the circumference of the chain wheel.
[0008] Further, the pressing jaw device comprises a pressing jaw shaft, the pressing jaw shaft is arranged between the first rotating shaft and the second rotating shaft, and pressing jaws are uniformly arranged on the pressing jaw shaft, and the reciprocating rotation of the pressing jaw shaft makes the pressing jaws press the tail end of the film bag on the bag pressing device.
[0009] Further, a protruding pad strip is arranged on the side of the bag pressing device close to the pressing jaw.
[0010] Further, a belt wheel B is rotationally connected to the second rotating shaft, the belt wheel B is in transmission connection with the output end of a driving motor, a limiting ring is mounted on the outer side of the belt wheel B, the limiting ring is fixedly connected to the second rotating shaft, a plurality of through holes are arranged on the inner side of the limiting ring, compression springs are mounted in the through holes, a steel ball is arranged between the compression springs and the belt wheel B, a plurality of semispherical grooves are arranged on the outer side of the belt wheel B along the circumference, the steel ball is arranged in the semispherical groove A, an eccentric shaft is fixedly connected to the outer side of the limiting ring, a fixed block is rotationally connected to the eccentric shaft, the fixed block is connected to the guide rod of a pneumatic cylinder D, the tail part of the pneumatic cylinder D is rotationally connected to one end of a connecting plate, and the other end of the connecting plate is fixedly connected to the pressing jaw shaft.
[0011] Further, a positioning block is fixedly connected to the second rotating shaft, and a proximity switch for detecting the positioning block is fixedly connected to the frame.
[0012] The utility model discloses the beneficial effect lies in,
[0013] By setting the coaxial driving bag pushing mechanism and the pressing jaw device, the bag pushing mechanism is used to push away the cut plastic film, the bag pressing device is used to press the film bag, in order to prevent the tail part from being lifted and affecting the subsequent work, the pressing jaw device is used to press the tail part of the film bag, since the two devices are simultaneously actuated by the coaxial driving, the use of the driving source is reduced, the equipment is simplified, and the stability of operation can be ensured.
[0014] The distance between the two adjacent pushing rods is set to be equal to the circumference of the chain wheel, one pushing rod can actuate for one rotation of the chain wheel, the proximity switch is used to detect the positioning block, and thus the operation time of the driving motor A is controlled, and time is provided for feeding the next film bag.
[0015] By setting the limiting ring, the limiting ring and the compression spring and the steel ball on the contact surface of the belt pulley B are extruded as a torque limiting device, when the dial lever twists the bag is overloaded, the steel ball is separated from the hemispherical groove A, so that the belt pulley B cannot drive the driving device to rotate, thereby ensuring the safety of production.
[0016] The cylinder D is used as a connecting piece, when the number of film bags pressed by the pressing claw gradually increases, adaptive extension can be performed for buffering effect, and when the number of film bags reaches a certain number, the front end machine needs to clamp the film bags as a whole, the cylinder D can control the pressing claw to shrink so that the pressing claw releases the film bags, thereby ensuring the smooth production. BRIEF DESCRIPTION OF DRAWINGS
[0017] The accompanying drawings are used to provide a further understanding of the present application, and constitute a part of the specification, and are used together with embodiments of the present application to explain the present application, and do not constitute a limitation on the present application. In the drawings:
[0018] Figure 1 It is an internal structure diagram of the bag making machine.
[0019] Figure 2 It is an internal structure diagram of the bag dialing mechanism.
[0020] Figure 3 It is an external side view structure diagram of the bag making machine.
[0021] Figure 4 It is another angle structure diagram of the bag making machine.
[0022] Figure 5 It is another side structure diagram of the bag making machine.
[0023] Figure 6 It is a cross-sectional structure diagram of the belt pulley B. DETAILED DESCRIPTION
[0024] The preferred embodiments of the present application are described below in conjunction with the drawings, and it should be understood that the preferred embodiments described herein are only used to illustrate and explain the present application, and do not limit the present application.
[0025] As Figures 1-6 shown, a coaxial driven rapid bag making machine, comprising a rack 10, the rack 10 is provided with a hot shearing device 20, a bag pressing device 30 along the material conveying direction, the rack 10 is provided with a bag dialing mechanism 40, a pressing claw device 50, the bag dialing mechanism 40 and the pressing claw device 50 are coaxially driven, the bag dialing mechanism 40 is arranged between the hot shearing device 20 and the bag pressing device 30, which is used to separate the finished product after shearing by the hot shearing device 20 from the subsequent material, and the pressing claw device 50 is arranged in the bag dialing mechanism 40 for pressing the tail end of the film bag on the bag pressing device 30.
[0026] Specifically, the film bag pressed by the bag pressing device 40 is pushed away by the hot cutting device 30 by setting the bag pushing mechanism 60, and the bag pressing device 40 is completed, and the tail of the film bag is pressed tightly on the bag pressing device 40, so as to ensure that the tail of the film bag does not affect the subsequent production.
[0027] Further, the bag pushing mechanism 40 comprises a rotary chain 401, a first rotating shaft 402, a second rotating shaft 403, and a pushing rod 404. The first rotating shaft 402 and the second rotating shaft 403 are rotatably connected to the frame 10. Chain wheels 405 are arranged on the first rotating shaft 402 and the second rotating shaft 403. The rotary chain 401 is in meshing transmission with the chain wheels 405. Two rotary chains 401 are arranged, and a plurality of pushing rods 404 are evenly arranged and fixedly connected between the two rotary chains 401.
[0028] Further, in order to enable the film bag to continue feeding production after the bag pushing mechanism 40 completes the action, the distance between the adjacent two pushing rods 404 is equal to the circumference of the chain wheel 405, so that a fixed pause period can be set, so as to have time to send the fixed-length film bag to the bag pressing device 40 for pressing, and then perform subsequent continuous production.
[0029] Further, the pressure claw device 50 comprises a pressure claw shaft 501, which is arranged between the first rotating shaft 402 and the second rotating shaft 403. The pressure claw shaft 501 is evenly arranged with pressure claws 5011. The pressure claw shaft 501 reciprocatingly rotates to press the tail end of the film bag on the bag pressing device 30 by the pressure claws 5011. The bag pressing device 30 is arranged with a protruding pad strip 406 on the side close to the pressure claw 5011. Such arrangement enables the pressure claw 5011 to better press the tail of the film bag through the cooperation of the protruding pad strip 406.
[0030] Further, the second rotating shaft 403 is rotatably connected with a belt pulley B4031, the belt pulley B4031 is drivingly connected to the output end of the driving motor 101, a limiting ring 4032 is mounted on the outer side of the belt pulley B4031, the limiting ring 4032 is fixedly connected to the second rotating shaft 403, a through hole 40321 is arranged on the inner side of the limiting ring 4032, a compression spring 40322 is mounted in the through hole 40321, a steel ball 40323 is arranged between the compression spring 40322 and the belt pulley B4031, a plurality of semispherical grooves A10211 are arranged on the outer side of the belt pulley B4031 along the circumference, the steel ball is arranged in the semispherical groove A10211, an eccentric shaft 60324 is fixedly connected to the outer side of the limiting ring 4032, a fixed block 6033 is rotatably connected to the eccentric shaft 60324, the fixed block 6033 is connected to the guide rod of a pneumatic cylinder D6034, the tail of the pneumatic cylinder D6034 is rotatably connected to one end of a connecting plate 6035, the other end of the connecting plate 6035 is fixedly connected to the pressure claw shaft 501, a positioning block 6036 is fixedly connected to the second rotating shaft 403, and a proximity switch for detecting the positioning block 6036 is fixedly connected to the rack 10.
[0031] Specifically, the hot shearing device 20 and the bag pressing device 30 are conventional technologies in the bag making machine, and will not be described in detail in the present patent. In the present patent, the bag pressing mechanism 40 provided with six push rods is used to push away the film bag cut by the hot shearing device 20, and then the tail of the film bag is pressed on the raised cushion strip 401 by the pressure claw device 50, so that the needle hole problem is avoided without using the needle.
[0032] The position of the second rotating shaft 603 can be better determined by detecting the positioning block 6036 by the proximity switch, and the compression spring 60312 and the steel ball 60313 are used as the torsion limiting device to automatically trip when the push rod is twisted, so that the normal production is ensured. Meanwhile, the pneumatic cylinder D6034 is arranged to buffer when the number of the film bags pressed by the pressure claw 5011 is increased, and the pressure claw can be released when the film bag is clamped on the subsequent workbench, so that the driving motor 101 does not need to be actuated, and the work process is not disturbed.
[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent replacements to some technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.
Claims
1. A coaxial driven fast bag making machine, comprising a frame (10), a hot cutting device (20) and a bag pressing device (30) are arranged on the frame (10) along the material conveying direction, characterized in that, The rack (10) is provided with a bag pushing mechanism (40) and a pressing jaw device (50), the bag pushing mechanism (40) and the pressing jaw device (50) are coaxially driven, the bag pushing mechanism (40) is arranged between the hot shearing device (20) and the bag pressing device (30), and is used for pushing away the finished product sheared by the hot shearing device (20) and subsequent materials, and the pressing jaw device (50) is arranged in the bag pushing mechanism (40) and is used for pressing the tail end of the film bag on the bag pressing device (30).
2. A rapid bag making machine driven coaxially as claimed in claim 1, wherein, The bag pushing mechanism (40) comprises a rotary chain (401), a first rotating shaft (402) and a second rotating shaft (403), the first rotating shaft (402) and the second rotating shaft (403) are rotationally connected to the rack (10), chain wheels (405) are arranged on the first rotating shaft (402) and the second rotating shaft (403), the rotary chain (401) is in meshing transmission with the chain wheels (405), two rotary chains (401) are arranged, and a plurality of pushing rods (404) are uniformly arranged on the two rotary chains (401) in a fixed connection manner.
3. A rapid bag making machine driven coaxially as claimed in claim 2, wherein, The distance between the two pushing rods (404) is equal to the circumference of the chain wheel (405).
4. A rapid bag making machine driven coaxially as claimed in claim 2, wherein, The pressing jaw device (50) comprises a pressing jaw shaft (501), the pressing jaw shaft (501) is arranged between the first rotating shaft (402) and the second rotating shaft (403), pressing jaws (5011) are uniformly arranged on the pressing jaw shaft (501), and the pressing jaw shaft (501) is reciprocatingly rotated to press the tail end of the film bag on the bag pressing device (30) by the pressing jaws (5011).
5. A rapid bag making machine driven coaxially as claimed in claim 4, characterized in that, A protruding pad strip (406) is arranged on the side of the bag pressing device (30) close to the pressing jaw (5011).
6. A rapid bag making machine driven coaxially as claimed in claim 4, wherein, The second rotating shaft (403) is rotationally connected with a belt pulley B (4031), the belt pulley B (4031) is drivingly connected to the output end of a driving motor (101), a limiting ring (4032) is mounted on the outer side of the belt pulley B (4031), the limiting ring (4032) is fixedly connected with the second rotating shaft (403), a plurality of through holes (40321) are arranged on the inner side of the limiting ring (4032), compression springs (40322) are mounted in the through holes (40321), steel balls (40323) are arranged between the compression springs (40322) and the belt pulley B (4031), a plurality of semispherical grooves A (40311) are arranged on the outer side of the belt pulley B (4031) along the circumference, the steel balls are arranged in the semispherical grooves A (40311), an eccentric shaft (60324) is fixedly connected to the outer side of the limiting ring (4032), a fixed block (6033) is rotationally connected with the eccentric shaft (60324), the fixed block (6033) is connected to the guide rod of a pneumatic cylinder D (6034), the tail portion of the pneumatic cylinder D (6034) is rotationally connected to one end of a connecting plate (6035), and the other end of the connecting plate (6035) is fixedly connected with the pressing jaw shaft (501).
7. A rapid bag making machine driven coaxially as claimed in claim 2 wherein, The second rotating shaft (403) is fixedly connected with a positioning block (6036), and the rack (10) is fixedly connected with a proximity switch for detecting the positioning block (6036).