A full-automatic packing machine sends the eccentricity pressure wheel adjusting device of the belt

Abstract

The utility model relates to packing machine sends and retreats the belt adjusting device technical field, concretely relates to a kind of full-automatic packing machine sends and retreats the eccentric press wheel adjusting device of belt, including bottom plate, mounting seat, secondary retreats belt component, sends and retreats belt component and drive assembly, mounting seat is fixedly installed on bottom plate upper surface, drive assembly is installed on mounting seat, drive assembly includes drive wheel one and drive wheel two, secondary retreats belt component is set correspondingly drive wheel one, sends and retreats belt component is set correspondingly drive wheel two, secondary retreats belt component includes No. electromagnetic, eccentric shaft one and retreats belt wheel.The utility model sends and retreats the belt wheel and drive wheel two extrusion packing belt and pull when sending belt, drive wheel one auxiliary drive, retreats belt wheel and drive wheel one extrusion packing belt and pull when retreats belt, drive wheel two auxiliary drive, compared with the existing single drive wheel structure, through the way of synergistic enhancement of main drive and auxiliary drive, improve the power stability of packing belt conveying or back-off.

Description

Technical Field

[0001] This utility model relates to the technical field of strapping machine feed and return adjustment device, specifically a fully automatic strapping machine feed and return eccentric pressure roller adjustment device. Background Technology

[0002] Fully automatic packaging machines are widely used in e-commerce, logistics, food processing and other industries. The feeding and unloading device of the fully automatic packaging machine is used for conveying and tightening the packaging straps. In the existing technology, the feeding and unloading device of the fully automatic packaging machine mostly adopts a cam, clutch, linkage or hydraulic drive structure. Due to the large number of mechanical transmission links and large inertia, the action response speed of this type of structure is relatively slow. In high-speed packaging scenarios, the feeding and unloading action is prone to delay, which causes the packaging straps to accumulate in the belt channel. At the same time, the existing devices mostly use a single drive wheel to drive the packaging straps to convey. When the drive wheel drives the packaging straps to turn, the friction of the belt channel can easily cause sudden changes in local speed, causing the packaging straps to stretch or loosen, increasing the risk of jamming.

[0003] Therefore, a fully automatic packing machine eccentric pressure roller adjustment device is proposed to solve the problems mentioned above. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an eccentric pressure roller adjustment device for the feeding and retraction of a fully automatic strapping machine. During feeding, the feeding roller and drive wheel 2 squeeze and pull the strapping, while drive wheel 1 provides auxiliary drive. During retraction, the retraction roller and drive wheel 1 squeeze and pull the strapping, while drive wheel 2 provides auxiliary drive. Compared to the existing single drive wheel structure, this device improves the dynamic stability of strapping conveying or retraction through the synergistic enhancement of main drive and auxiliary drive, thus solving the problems mentioned in the background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solution: including a base plate, a mounting base, a secondary belt retraction assembly, a belt feeding and retraction assembly, and a drive assembly. The mounting base is fixedly mounted on the upper surface of the base plate, and the drive assembly is mounted on the mounting base. The drive assembly includes a drive wheel one and a drive wheel two. The secondary belt retraction assembly is arranged corresponding to the drive wheel one, and the belt feeding and retraction assembly is arranged corresponding to the drive wheel two. The secondary tape retraction assembly includes a first electromagnet, an eccentric shaft, and a tape retraction wheel. The tape retraction wheel is connected to one end of the eccentric shaft. The first electromagnet is used to drive the eccentric shaft to rotate so as to drive the tape retraction wheel to swing and fit against the drive wheel. The belt feeding and unloading assembly includes a second electromagnet, a third electromagnet, an eccentric shaft, and a belt feeding wheel. The belt feeding wheel is connected to one end of the second eccentric shaft. Both the second and third electromagnets are used to drive the second eccentric shaft to rotate, thereby causing the belt feeding wheel to swing.

[0006] Preferably, the drive assembly further includes a drive motor, a reduction gearbox, a first synchronous pulley, and a second synchronous pulley. The output end of the drive motor is connected to the reduction gearbox, and the output end of the reduction gearbox is connected to the first synchronous pulley.

[0007] Preferably, the second drive wheel is connected to the second synchronous pulley via a shaft, the output shaft of the drive motor is fixedly fitted with the first synchronous pulley, and the second synchronous pulley is connected to the first synchronous pulley via a synchronous belt.

[0008] Preferably, the secondary tape retraction assembly further includes a tension spring, a tension screw, and a tape retraction swing arm. The tension screw is rotatably connected to the end of the tape retraction swing arm away from the eccentric shaft. The first electromagnet is mounted on the base plate, and the telescopic end of the first electromagnet is connected to the tension screw through the tension spring.

[0009] Preferably, the belt feeding and unloading assembly further includes a second electromagnet spring and a belt feeding swing arm. The end of the belt feeding swing arm away from the second electromagnet is fixedly connected to the second eccentric shaft. The second electromagnet spring is sleeved on the telescopic ends of the second and third electromagnets and abuts against the belt feeding swing arm.

[0010] Preferably, an eccentric seat one, an eccentric seat two, and a thickened limiting block are fixedly installed on the side of the mounting base near the drive wheel one. The gap between the eccentric seat one and the eccentric seat two is used for threading packing straps. The side of the thickened limiting block near the drive wheel one is arc-shaped, and the distance between the thickened limiting block and the outer side of the drive wheel one is uniform.

[0011] Preferably, a standard track is fixedly installed on the upper side of the mounting base, the bottom surface of the standard track is grooved, and the second drive wheel is located below the groove of the standard track.

[0012] Compared with the prior art, this utility model provides a fully automatic strapping machine eccentric pressure roller adjustment device, which has the following beneficial effects: 1. During the feeding process, the feeding wheel and drive wheel 2 squeeze and pull the strapping, while drive wheel 1 provides auxiliary drive. During the unloading process, the unloading wheel and drive wheel 1 squeeze and pull the strapping, while drive wheel 2 provides auxiliary drive. Compared with the existing single drive wheel structure, this design improves the dynamic stability of strapping conveying or retraction by enhancing the synergy between the main drive and auxiliary drive. At the same time, the thickened limit block limits the strapping, reducing the risk of jamming from both the power synergy and path limiting aspects. This ensures that the fully automatic strapping machine maintains stable strapping feeding and unloading performance even in high-speed strapping scenarios.

[0013] 2. The eccentric shaft is driven by an electromagnet to drive the pressure roller to swing. The electromagnet only needs to drive the eccentric shaft to swing with a small amplitude. Compared with the existing drive structure such as cam and clutch, the mechanical transmission links and inertial influence are greatly reduced, and the response speed of the feeding and unloading action is improved. At the same time, with the spring buffer and rubber pressure roller, it can not only ensure stable clamping when the pressure roller and the drive wheel are in contact, but also avoid the strapping from being deformed or slipping due to excessive compression, thus improving the stability and reliability of the feeding and unloading action. Attached Figure Description

[0014] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 A frontal perspective structural diagram of the eccentric pressure roller adjustment device for the fully automatic strapping machine of this utility model; Figure 2 A three-dimensional structural diagram of the back of the eccentric pressure roller adjustment device for the fully automatic strapping machine of this utility model; Figure 3 This utility model provides a partial structural schematic diagram of the eccentric pressure roller adjustment device for the feeding and unloading of the fully automatic strapping machine. Figure 4 A schematic diagram of the secondary tape retraction component provided for the tape feeding and retraction eccentric pressure roller adjustment device of the fully automatic strapping machine of this utility model; Figure 5 A schematic diagram of the tape feeding and unloading assembly structure provided for the tape feeding and unloading eccentric pressure roller adjustment device of the fully automatic strapping machine of this utility model; Figure 6 This is a schematic diagram of the drive assembly structure provided for the eccentric pressure roller adjustment device of the fully automatic packing machine of this utility model.

[0015] In the diagram: 1. Base plate; 2. Mounting seat; 3. Secondary belt retraction assembly; 4. Belt feeding and retraction assembly; 5. Drive assembly; 7. Eccentric seat one; 8. Eccentric seat two; 9. Thickened limit block; 10. Standard belt track; 301. Electromagnet No. 1; 302. Eccentric shaft one; 303. Belt retraction pulley; 304. Tension spring; 305. Tensioning screw; 306. Belt retraction swing arm; 4011. Electromagnet No. 2; 4012. Electromagnet No. 3; 402. Eccentric shaft two; 403. Belt feeding pulley; 404. Electromagnet two spring; 405. Belt feeding swing arm; 501. Drive motor; 502. Gearbox; 503. Synchronous pulley one; 504. Synchronous pulley two; 505. Drive wheel one; 506. Drive wheel two. Detailed Implementation

[0016] 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. Example

[0017] Please see Figure 1 - Figure 6 This embodiment of a fully automatic packing machine eccentric pressure roller adjustment device includes a base plate 1, a mounting base 2, a secondary packing assembly 3, a packing assembly 4, and a drive assembly 5. The mounting base 2 is fixedly installed on the upper surface of the base plate 1, and a packing strap storage compartment is reserved below the base plate 1. The drive assembly 5 is installed on the mounting base 2 and includes a first drive wheel 505 and a second drive wheel 506. The secondary packing assembly 3 is set corresponding to the first drive wheel 505, and the packing assembly 4 is set corresponding to the second drive wheel 506.

[0018] The drive assembly 5 also includes a drive motor 501, a reduction gearbox 502, a first synchronous pulley 503, and a second synchronous pulley 504. The output end of the drive motor 501 is connected to the reduction gearbox 502, and the output end of the reduction gearbox 502 is connected to the first drive wheel 505. The reduction gearbox 502 is an existing device with a gear set inside. A suitable reduction gearbox 502 is selected according to the diameter ratio of the first drive wheel 505, the second drive wheel 506, the first synchronous pulley 503, and the second synchronous pulley 504. The second drive wheel 506 is connected to the second synchronous pulley 504 through a shaft. The output shaft of the drive motor 501 is fixedly fitted with the first synchronous pulley 503. The second synchronous pulley 504 is connected to the first synchronous pulley 503 through a synchronous belt. Through the reasonable design of the speed ratio of the reduction gearbox 502 and the reasonable ratio of the first synchronous pulley 503 and the second synchronous pulley 504, the linear speed of the outer surfaces of the first drive wheel 505 and the second drive wheel 506 is equal, avoiding belt stretching or loosening caused by belt speed differences.

[0019] The secondary tape unwinding assembly 3 is positioned corresponding to the drive wheel 505 and is installed near the base plate 1 to accommodate the packing strap storage compartment below. The secondary tape unwinding assembly 3 includes a first electromagnet 301, an eccentric shaft 302, and a tape unwinding wheel 303. The tape unwinding wheel 303 is connected to one end of the eccentric shaft 302. The first electromagnet 301 drives the eccentric shaft 302 to rotate, causing the tape unwinding wheel 303 to swing and engage with the drive wheel 505. The secondary tape unwinding assembly 3 also includes a tension spring 304, a tension screw 305, and a tape unwinding swing arm 306 for tensioning... Screw 305 is rotatably connected to the end of the unwinding arm 306 away from the eccentric shaft 302. Electromagnet 301 is mounted on the base plate 1. The telescopic end of electromagnet 301 is connected to the tension screw 305 through a tension spring 304. When electromagnet 301 retracts, it pulls the tension spring 304, which in turn drives the tension screw 305, causing the unwinding arm 306 to rotate around the eccentric shaft 302. This causes the unwinding wheel 303 to swing and engage with the drive wheel 505. The tension spring 304 acts as a buffer during this process to prevent excessive pressure from damaging the packing strap.

[0020] The belt feed / retractor assembly 4 is positioned corresponding to the second drive wheel 506 and is located at the standard belt track 10. The assembly includes a second electromagnet 4011, a third electromagnet 4012, a second eccentric shaft 402, and a feed wheel 403. The feed wheel 403 is connected to one end of the second eccentric shaft 402. Both the second electromagnet 4011 and the third electromagnet 4012 drive the second eccentric shaft 402 to rotate, causing the feed wheel 403 to swing and engage with the second drive wheel 506. The assembly also includes a second electromagnet spring 404 and a feed swing arm 405. One end of the feed swing arm 405 is connected to the eccentric shaft 402. Shaft 2 402 is fixedly connected. The other end of the feeding swing arm 405 is sleeved on the telescopic end of electromagnet 2 4011. Two electromagnet springs 404 are respectively sleeved on the telescopic ends of electromagnet 2 4011 and electromagnet 3 4012 and abut against the feeding swing arm 405. When electromagnet 2 4011 or electromagnet 3 4012 retracts, it will squeeze the electromagnet spring 404 downward, causing the feeding swing arm 405 to rotate around the eccentric shaft 2 402, so that the feeding wheel 403 fits against the drive wheel 2 506. The electromagnet spring 404 can buffer the fitting pressure and prevent the packing strap from deforming due to excessive compression.

[0021] Meanwhile, when electromagnet 4011 or electromagnet 4012 is de-energized, the elastic force stored in the spring 404 of electromagnet 2 causes the telescopic end of the electromagnet to move upward, thus resetting the electromagnet. At the same time, due to inertia, the feeding arm 405 swings upward. At this time, only a small swing is needed to disengage the feeding wheel 403 from the drive wheel 506. Furthermore, when electromagnets 4011 and 4012 are de-energized, the feeding wheel 403 will not squeeze the drive wheel 506, thus not affecting the movement of the packing strap driven by the secondary unloading assembly 3.

[0022] Eccentric seat 7, eccentric seat 8, and thickened limiting block 9 are fixedly installed on the side of the mounting base 2 near the drive wheel 505. The gap between eccentric seat 7 and eccentric seat 8 is used to thread the packing strap and provide a guide channel for the packing strap. The side of the thickened limiting block 9 near the drive wheel 505 is arc-shaped, and the distance between the thickened limiting block 9 and the outer side of the drive wheel 505 is uniform. The thickened limiting block 9 and the drive wheel 505 continuously limit the packing strap and guide the strap to transition smoothly.

[0023] A standard belt guide 10 is fixedly installed on the upper side of the mounting base 2. The bottom surface of the standard belt guide 10 is grooved. The second drive wheel 506 is located below the groove of the standard belt guide 10. The surface of the second drive wheel 506 close to the standard belt guide 10 directly contacts the packing strap through the groove. When the feed wheel 403 is pressed down, it squeezes the packing strap together with the second drive wheel 506. Both the unwind wheel 303 and the feed wheel 403 are made of rubber, which can enhance the friction with the packing strap and prevent slippage.

[0024] The conveying path of the packing strap is as follows: it passes between eccentric seat 1 7 and eccentric seat 2 8, passes between drive wheel 1 505 and pull-out wheel 303, then passes between drive wheel 1 505 and thickened limit block 9 to reach standard belt track 10, and after entering standard belt track 10, it passes between drive wheel 2 506 and feed wheel 403.

[0025] During tape feeding, electromagnet 4011 is energized while electromagnet 4012 is de-energized. The telescopic end of electromagnet 4011 moves downward, pressing the spring 404 of electromagnet 4011. The spring 404 then presses the tape feeding arm 405, causing it to swing downward. This causes the eccentric shaft 402 to drive the tape feeding wheel 403 to swing towards the drive wheel 506. The tape feeding wheel 403 and the drive wheel 506 press the strapping tape together and pull it forward. At this time, the outer edge of drive wheel 505 and the outer edge of drive wheel 506 have the same linear velocity. Drive wheel 505 provides auxiliary drive for the strapping tape, thus pulling it out from the bottom. At this time, the secondary tape unloading assembly 3 is released, i.e., electromagnet 301 is released, and the unloading wheel 303 no longer presses the drive wheel 505.

[0026] When the strapping is unloaded, drive wheel 1 505 and drive wheel 2 506 stop rotating first. Electromagnet 3 4012 is energized, while electromagnet 2 4011 is de-energized. Electromagnet 3 4012 drives the telescopic end to move downward, which in turn causes eccentric shaft 2 402 to drive the feed wheel 403 to swing towards drive wheel 2 506. The feed wheel 403 and drive wheel 2 506 squeeze the strapping to position the upper end of the strapping. Then, electromagnet 3 4012 is released, and electromagnet 1 301 is activated. At this time, the feed wheel 403 does not squeeze the strapping. The unloading wheel 303 and drive wheel 1 505 squeeze the strapping and pull it downward into the storage compartment. Drive wheel 2 506 provides auxiliary drive for the strapping.

[0027] During the tightening process of the strapping, the strapping is first unloaded. After the strapping is unloaded, the secondary unloading component 3 is released, and at the same time, the third electromagnet 4012 is activated to cause the feeding wheel 403 and the second drive wheel 506 to squeeze the strapping, pulling the strapping downward, thereby tightening the strapping and making the strapping taut over the packaged item. During the tightening process, the strapping is pulled a short distance, and the first drive wheel 505 will drive the strapping that has been received in the feeding and unloading structure to move downward, so that the strapping will not accumulate in the feeding and unloading structure.

[0028] During the feeding and unloading process, the main drive and auxiliary drive work together to enhance power stability, so that the speed of the strapping is balanced throughout the feeding and unloading structure. Combined with the path limiting structure, the risk of material jamming is effectively reduced.

[0029] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods. As long as they can achieve their beneficial effects, they can be implemented. Therefore, this embodiment will not elaborate on their specific structural composition and working principle.

[0030] If certain terms are used in the specification and claims to refer to specific components, those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" as used throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to".

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fully automatic strapping machine eccentric pressure roller adjustment device, characterized in that: The device includes a base plate (1), a mounting base (2), a secondary belt retraction assembly (3), a belt feeding and retraction assembly (4), and a drive assembly (5). The mounting base (2) is fixedly mounted on the upper surface of the base plate (1). The drive assembly (5) is mounted on the mounting base (2). The drive assembly (5) includes a first drive wheel (505) and a second drive wheel (506). The secondary belt retraction assembly (3) is set corresponding to the first drive wheel (505), and the belt feeding and retraction assembly (4) is set corresponding to the second drive wheel (506). The secondary tape retraction assembly (3) includes a first electromagnet (301), an eccentric shaft (302), and a tape retraction wheel (303). The tape retraction wheel (303) is connected to one end of the eccentric shaft (302). The first electromagnet (301) is used to drive the eccentric shaft (302) to rotate so as to drive the tape retraction wheel (303) to swing and fit against the drive wheel (505). The belt feeding and unloading assembly (4) includes a second electromagnet (4011), a third electromagnet (4012), an eccentric shaft (402), and a belt feeding wheel (403). The belt feeding wheel (403) is connected to one end of the eccentric shaft (402). The second electromagnet (4011) and the third electromagnet (4012) are both used to drive the eccentric shaft (402) to rotate so as to drive the belt feeding wheel (403) to swing.

2. The full-automatic packing machine belt feeding and returning eccentric press roller adjusting device according to claim 1, characterized in that: The drive assembly (5) also includes a drive motor (501), a gearbox (502), a first synchronous pulley (503) and a second synchronous pulley (504). The output end of the drive motor (501) is connected to the gearbox (502), and the output end of the gearbox (502) is connected to the first drive pulley (505).

3. The full-automatic packing machine belt feeding and discharging eccentric press roller adjusting device according to claim 2, characterized in that: The second drive wheel (506) is connected to the second synchronous pulley (504) via a shaft. The output shaft of the drive motor (501) is fixedly fitted with the first synchronous pulley (503). The second synchronous pulley (504) is connected to the first synchronous pulley (503) via a synchronous belt.

4. The full-automatic packing machine belt feeding and discharging eccentric press roller adjusting device according to claim 1, characterized in that: The secondary belt unwinding assembly (3) also includes a tension spring (304), a tension screw (305), and a belt unwinding swing arm (306). The tension screw (305) is rotatably connected to the end of the belt unwinding swing arm (306) away from the eccentric shaft (302). The first electromagnet (301) is mounted on the base plate (1). The telescopic end of the first electromagnet (301) is connected to the tension screw (305) through the tension spring (304).

5. The eccentric pressure roller adjustment device for the feeding and retraction of a fully automatic packing machine according to claim 1, characterized in that: The belt feeding and unloading assembly (4) also includes an electromagnet spring (404) and a belt feeding swing arm (405). The end of the belt feeding swing arm (405) away from the second electromagnet (4011) is fixedly connected to the second eccentric shaft (402). The second electromagnet spring (404) is sleeved on the telescopic ends of the second electromagnet (4011) and the third electromagnet (4012) and abuts against the belt feeding swing arm (405).

6. The eccentric pressure roller adjustment device for the feeding and retraction of a fully automatic packing machine according to claim 1, characterized in that: The mounting base (2) is fixedly mounted with an eccentric seat one (7), an eccentric seat two (8) and a thickened limiting block (9) on the side near the drive wheel one (505). The gap between the eccentric seat one (7) and the eccentric seat two (8) is used for threading packing straps. The side of the thickened limiting block (9) near the drive wheel one (505) is arc-shaped, and the distance between the thickened limiting block (9) and the outer side of the drive wheel one (505) is uniform.

7. The eccentric pressure roller adjustment device for the feeding and retraction of a fully automatic packing machine according to claim 1, characterized in that: A standard track (10) is fixedly installed on the upper side of the mounting base (2). The bottom surface of the standard track (10) is grooved, and the second drive wheel (506) is located below the groove of the standard track (10).

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