Longitudinal sealing mechanism of multi-column packaging machine

Abstract

A longitudinal sealing mechanism of a multi-column packaging machine comprises a power mechanism, a transmission mechanism, swing arm mechanisms, a first connecting mechanism, a longitudinal sealing block, a longitudinal sealing block fixing block and a second connecting mechanism, the power mechanism is connected with the transmission mechanism, and the swing arm mechanisms are arranged at the two ends of the transmission mechanism respectively. The swing arm mechanism is connected with a longitudinal sealing block fixing block through a first connecting mechanism and a second connecting mechanism, and a longitudinal sealing block is arranged on the longitudinal sealing block fixing block. Compared with the prior art, the problem that sealing is not tight due to the fact that the two sides of the longitudinal sealing block are unbalanced in stress is solved; the occupied space is reduced to realize wallboard sealing and dust prevention; a synchronous belt transmission system is additionally arranged to reduce motor pressure under high load and prolong the service life of equipment; a third connecting block and a four-screw fixing structure are adopted to ensure that a longitudinal sealing block fixing block is stable during maintenance, and position deviation is avoided; the stopping stroke is prolonged by increasing the eccentric distance of the swing arm, and a traditional additional transmission device is replaced.

Description

Technical Field

[0001] This utility model relates to the field of packaging equipment, specifically to a longitudinal sealing mechanism for a multi-row packaging machine. Background Technology

[0002] Traditional multi-row packaging machines' longitudinal sealing mechanisms, such as ZL202120315053.8 ("Multi-row Packaging Machine Longitudinal Sealing Mechanism"), suffer from uneven force distribution on both sides due to their single-sided structure. This results in insufficient sealing force and an incomplete seal. Furthermore, the adjusting shaft, which penetrates the wall and has a large range of motion (three degrees of freedom in the X, Y, and Z axes), can prevent the wall panel from sealing properly, allowing dust to enter and damage the equipment. Finally, the direct-drive motor lacks a buffer structure, making it prone to overload under excessive pressure.

[0003] To address the aforementioned issues, we have made a series of improvements. Utility Model Content

[0004] The purpose of this invention is to provide a longitudinal sealing mechanism for a multi-row packaging machine to overcome the aforementioned shortcomings and deficiencies of the prior art.

[0005] A longitudinal sealing mechanism for a multi-row packaging machine includes: a power mechanism, a transmission mechanism, a swing arm mechanism, a first connecting mechanism, a longitudinal sealing block, a longitudinal sealing block fixing block, and a second connecting mechanism. The power mechanism is connected to the transmission mechanism. Swing arm mechanisms are respectively provided at both ends of the transmission mechanism. The swing arm mechanisms are respectively connected to the longitudinal sealing block fixing block through the first connecting mechanism and the second connecting mechanism. A longitudinal sealing block is provided on the longitudinal sealing block fixing block.

[0006] The swing arm mechanism includes: a first swing arm, a second swing arm, an adjusting shaft, a fixed block, a linear bearing, a swing arm shaft, and a tensioning sleeve. The first swing arm is connected to the transmission mechanism via the tensioning sleeve. The first swing arm is connected to the second swing arm. The second swing arm is connected to the fixed block. The fixed block is connected to the swing arm shaft via the adjusting shaft. The linear bearing is connected to the swing arm shaft. The swing arm shaft is connected to the first connecting mechanism and the second connecting mechanism.

[0007] Furthermore, the power mechanism includes: a motor mounting base, a servo motor, a drive pulley, a synchronous belt, and a driven synchronous pulley. The motor mounting base is connected to a multi-row packaging machine. The servo motor is mounted on the motor mounting base. The servo motor is connected to the drive pulley shaft. The drive pulley is connected to the driven synchronous pulley via the synchronous belt. The driven synchronous pulley is connected to a transmission mechanism.

[0008] Furthermore, the transmission mechanism includes: a left rotating shaft, a first bearing fixing seat, a coupling, and a right rotating shaft. The left rotating shaft and the right rotating shaft are respectively connected to the power mechanism through the coupling. The length of the left rotating shaft is greater than that of the right rotating shaft. The two ends of the left rotating shaft and the right rotating shaft are respectively provided with a first bearing fixing seat.

[0009] Furthermore, the first connecting mechanism includes: a first fixed seat, a first connecting block, a second connecting block, a third connecting block, and a fixing screw. The first connecting block is connected to the second connecting block through the first fixed seat. The first connecting block is connected to the swing arm shaft. The second connecting block is connected to the third connecting block. The third connecting block is connected to the longitudinal sealing block fixing block through the fixing screw.

[0010] Furthermore, the second connecting mechanism includes: a second fixed base, a fourth connecting block, a fifth connecting block, and a sixth connecting block. The fourth connecting block is connected to the fifth connecting block via the second fixed base. The fourth connecting block is connected to the swing arm shaft. The fifth connecting block is connected to the sixth connecting block. The sixth connecting block is connected to the longitudinal sealing block fixing block.

[0011] The beneficial effects of this utility model are:

[0012] Compared with traditional technologies, this utility model adopts a double swing arm structure to achieve symmetrical parallel power transmission, solving the problem of incomplete sealing caused by force imbalance on both sides of the longitudinal sealing block; the movement direction of the swing arm shaft is limited by the cooperation of linear bearings and swing arms, reducing the space occupied and achieving dustproof sealing of the wall panel; a synchronous belt transmission system is added to reduce the motor pressure under high load and extend the equipment life; a third connecting block and four screw fixing structure are used to ensure the stability of the longitudinal sealing block fixing block during maintenance and avoid positional displacement; by increasing the eccentricity of the swing arm, the stopping stroke is extended, pushing the high-temperature longitudinal sealing block further away to avoid baking the parts, replacing the traditional additional transmission device. Attached image description:

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the structure of this utility model from another perspective.

[0015] Figure label:

[0016] The power mechanism 100, motor mounting base 110, servo motor 120, drive pulley 130, synchronous belt 140, and driven synchronous pulley 150 are included.

[0017] Transmission mechanism 200, left rotating shaft 210, first bearing fixed seat 220, coupling 230 and right rotating shaft 240.

[0018] The components include a swing arm mechanism 300, a first swing arm 310, a second swing arm 320, an adjusting shaft 330, a fixing block 340, a linear bearing 350, a swing arm shaft 360, and a tensioning sleeve 370.

[0019] The system comprises a first connecting mechanism 400, a first fixed base 410, a first connecting block 420, a second connecting block 430, a third connecting block 440, and a fixing screw 450.

[0020] Longitudinal sealing block 500 and longitudinal sealing block fixing block 600.

[0021] The second connecting mechanism 700, the second fixed base 710, the fourth connecting block 720, the fifth connecting block 730, and the sixth connecting block 740. Detailed Implementation

[0022] The present invention will be further described below with reference to specific embodiments. It should be understood that the following embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention.

[0023] Example 1

[0024] Figure 1 This is a schematic diagram of the structure of this utility model. Figure 2 This is a schematic diagram of the structure of this utility model from another perspective.

[0025] like Figure 1-2 As shown, a longitudinal sealing mechanism of a multi-row packaging machine includes: a power mechanism 100, a transmission mechanism 200, a swing arm mechanism 300, a first connecting mechanism 400, a longitudinal sealing block 500, a longitudinal sealing block fixing block 600, and a second connecting mechanism 700. The power mechanism 100 is connected to the transmission mechanism 200. The transmission mechanism 200 is provided with swing arm mechanisms 300 at both ends. The swing arm mechanisms 300 are connected to the longitudinal sealing block fixing block 600 through the first connecting mechanism 400 and the second connecting mechanism 700, respectively. The longitudinal sealing block fixing block 600 is provided with the longitudinal sealing block 500.

[0026] The swing arm mechanism 300 includes: a first swing arm 310, a second swing arm 320, an adjusting shaft 330, a fixing block 340, a linear bearing 350, a swing arm shaft 360, and a tensioning sleeve 370. The first swing arm 310 is connected to the transmission mechanism 200 through the tensioning sleeve 370. The first swing arm 310 is connected to the second swing arm 320. The second swing arm 320 is connected to the fixing block 340. The fixing block 340 is connected to the swing arm shaft 360 through the adjusting shaft 330. The linear bearing 350 is connected to the swing arm shaft 360. The swing arm shaft 360 is connected to the first connecting mechanism 400 and the second connecting mechanism 700.

[0027] The power mechanism 100 includes: a motor mounting base 110, a servo motor 120, a drive pulley 130, a synchronous belt 140, and a driven synchronous pulley 150. The motor mounting base 110 is connected to a multi-row packaging machine. The servo motor 120 is mounted on the motor mounting base 110. The servo motor 120 is connected to the shaft of the drive pulley 130. The drive pulley 130 is connected to the driven synchronous pulley 150 through the synchronous belt 140. The driven synchronous pulley 150 is connected to the transmission mechanism 200.

[0028] The transmission mechanism 200 includes: a left rotating shaft 210, a first bearing fixing seat 220, a coupling 230, and a right rotating shaft 240. The left rotating shaft 210 and the right rotating shaft 240 are respectively connected to the power mechanism 100 through the coupling 230. The length of the left rotating shaft 210 is greater than that of the right rotating shaft 240. The first bearing fixing seat 220 is provided at both ends of the left rotating shaft 210 and the right rotating shaft 240.

[0029] The first connecting mechanism 400 includes: a first fixed base 410, a first connecting block 420, a second connecting block 430, a third connecting block 440, and a fixing screw 450. The first connecting block 420 is connected to the second connecting block 430 through the first fixed base 410 and is connected to the swing arm shaft 360. The second connecting block 430 is connected to the third connecting block 440. The third connecting block 440 is connected to the longitudinal sealing block fixing block 600 through the fixing screw 450.

[0030] The second connecting mechanism 700 includes: a second fixed seat 710, a fourth connecting block 720, a fifth connecting block 730 and a sixth connecting block 740. The fourth connecting block 720 is connected to the fifth connecting block 730 through the second fixed seat 710. The fourth connecting block 720 is connected to the swing arm shaft 360. The fifth connecting block 730 is connected to the sixth connecting block 740. The sixth connecting block 740 is connected to the longitudinal sealing block fixing block 600.

[0031] The working principle of this utility model is as follows: the servo motor 120 provides power, which is then transmitted to the drive wheel 130. The drive wheel 130 drives the driven synchronous wheel 150 through the synchronous belt 140. The driven synchronous wheel 150 drives the left rotating shaft 210 and the right rotating shaft 240 connected by the coupling 230. The left rotating shaft 210 and the right rotating shaft 240 then drive the corresponding swing arm mechanism 300 respectively.

[0032] In this process, the first swing arm 310 drives the second swing arm 320 to move back and forth, thereby causing the swing arm shaft 360 to move back and forth along the linear bearing 350. The swing arm shaft 360 drives the first connecting block 420, and the first connecting block 420 drives the second connecting block 430 to rotate on the first fixed seat 410. The second connecting block 430 then drives the longitudinal sealing block fixing block 600 to move back and forth through the third connecting block 440, thereby enabling the longitudinal sealing block 500 to move obliquely forward and backward. The second connecting mechanism 700 and the first connecting mechanism 400 have the same structural function in the above process, so the details of the other side will not be described in detail.

[0033] The innovations of this utility model are reflected in five aspects: First, by using two sets of swing arms, symmetrical parallel operation is achieved during power transmission, thus solving the problem of unbalanced force on both sides of the longitudinal sealing block 500 and avoiding insufficient sealing force caused by imbalance, which would result in an incomplete longitudinal seal. Second, this utility model adopts a structure combining linear bearings and swing arms, enabling wall panel sealing and preventing dust from entering the equipment. The specific principle is as follows: In traditional equipment, the single swing arm structure is directly connected to the swing arm shaft. During the back-and-forth swinging process, the swing arm shaft has six directions: up, down, left, right, forward, and backward. This results in a very large space occupied by its movement, making wall sealing impossible. However, this utility model adds a second swing arm 320 and a linear bearing 350. The second swing arm 320 restricts its left-right direction, and the linear bearing 350 restricts its up-and-down direction, allowing the swing arm shaft 360 to move only within a defined space. Therefore, the space occupied by the movement is significantly reduced, thus enabling the sealing of the wall panel 1. Third, this invention adds a synchronous belt 140, which drives the driving pulley 130 and the driven synchronous pulley 150 for transmission, greatly reducing the motor load pressure under high load conditions and extending the service life of the entire equipment. Fourth, this invention maintains a stable stationary state during maintenance. In traditional technology, due to the imbalance of the supports on both sides, and after the transmission structure and the longitudinal sealing block fixing block are removed, the weak side support makes it difficult for the longitudinal sealing block fixing block 600 to remain stable during shutdown. As a result, after maintenance and installation, the longitudinal sealing block fixing block 600 has shifted or misaligned due to the imbalance during maintenance, thus affecting the precision of the entire equipment. In this invention, on the one hand, both sides have balanced support, and on the other hand, the longitudinal sealing block fixing block 600 can be disassembled from this end by the third connecting block 440 and the longitudinal sealing block fixing block 600 fixed by four fixing screws 450. Even without the first connecting mechanism 400, the other side can still maintain stability with the assistance of the swing arm mechanism 300 and the sixth connecting block 740. Fifth, the structure of this utility model is significantly optimized compared to the traditional method. Traditional technology, to prevent the longitudinal sealing block 500 from baking the feed pipe and other components while the machine is stopped due to its high operating temperature, thus affecting their lifespan, adds an extra transmission component that only activates when the machine needs to stop to push the longitudinal sealing block 500 further. This utility model solves this problem by increasing the stroke of the swing arm. During normal processing, this utility model operates with a short stroke, no different from the traditional method; however, when the machine stops, it can execute the longest stroke to push the longitudinal sealing block 500 further. To achieve this, the stroke of the entire swing arm must be increased. Specifically, the eccentricity between the first swing arm 310, the second connecting block 430, and the fifth connecting block 730 and their connected rotating shaft is increased, thereby amplifying the entire stroke.

[0034] Compared with traditional technologies, this utility model adopts a double swing arm structure to achieve symmetrical parallel power transmission, solving the problem of incomplete sealing caused by force imbalance on both sides of the longitudinal sealing block; the movement direction of the swing arm shaft is limited by the cooperation of linear bearings and swing arms, reducing the space occupied and achieving dustproof sealing of the wall panel; a synchronous belt transmission system is added to reduce the motor pressure under high load and extend the equipment life; a third connecting block and four screw fixing structure are used to ensure the stability of the longitudinal sealing block fixing block during maintenance and avoid positional displacement; by increasing the eccentricity of the swing arm, the stopping stroke is extended, pushing the high-temperature longitudinal sealing block further away to avoid baking the parts, replacing the traditional additional transmission device.

[0035] The specific embodiments of this utility model have been described above, but this utility model is not limited thereto. Various changes can be made to this utility model as long as they do not depart from its spirit.

Claims

1. A longitudinal sealing mechanism for a multi-row packaging machine, characterized in that, include: The system comprises a power mechanism (100), a transmission mechanism (200), a swing arm mechanism (300), a first connecting mechanism (400), a longitudinal sealing block (500), a longitudinal sealing block fixing block (600), and a second connecting mechanism (700). The power mechanism (100) is connected to the transmission mechanism (200). The transmission mechanism (200) has swing arm mechanisms (300) at both ends. The swing arm mechanisms (300) are connected to the longitudinal sealing block fixing block (600) through the first connecting mechanism (400) and the second connecting mechanism (700). The longitudinal sealing block fixing block (600) has a longitudinal sealing block (500). The swing arm mechanism (300) includes: a first swing arm (310), a second swing arm (320), an adjusting shaft (330), a fixing block (340), a linear bearing (350), a swing arm shaft (360), and a tensioning sleeve (370). The first swing arm (310) is connected to the transmission mechanism (200) through the tensioning sleeve (370). The first swing arm (310) is connected to the second swing arm (320). The second swing arm (320) is connected to the fixing block (340). The fixing block (340) is connected to the swing arm shaft (360) through the adjusting shaft (330). The linear bearing (350) is connected to the swing arm shaft (360). The swing arm shaft (360) is connected to the first connecting mechanism (400) and the second connecting mechanism (700).

2. The longitudinal sealing mechanism of a multi-row packaging machine according to claim 1, characterized in that, The power mechanism (100) includes: a motor mounting base (110), a servo motor (120), a drive pulley (130), a synchronous belt (140), and a driven synchronous pulley (150). The motor mounting base (110) is connected to a multi-row packaging machine. The servo motor (120) is mounted on the motor mounting base (110). The servo motor (120) is connected to the shaft of the drive pulley (130). The drive pulley (130) is connected to the driven synchronous pulley (150) via the synchronous belt (140). The driven synchronous pulley (150) is connected to the transmission mechanism (200).

3. The longitudinal sealing mechanism of a multi-row packaging machine according to claim 1, characterized in that, The transmission mechanism (200) includes: a left rotating shaft (210), a first bearing fixing seat (220), a coupling (230), and a right rotating shaft (240). The left rotating shaft (210) and the right rotating shaft (240) are respectively connected to the power mechanism (100) through the coupling (230). The length of the left rotating shaft (210) is greater than that of the right rotating shaft (240). The two ends of the left rotating shaft (210) and the right rotating shaft (240) are respectively provided with the first bearing fixing seat (220).

4. The longitudinal sealing mechanism of a multi-row packaging machine according to claim 1, characterized in that, The first connecting mechanism (400) includes: a first fixed seat (410), a first connecting block (420), a second connecting block (430), a third connecting block (440), and a fixing screw (450). The first connecting block (420) is connected to the second connecting block (430) through the first fixed seat (410). The first connecting block (420) is connected to the swing arm shaft (360). The second connecting block (430) is connected to the third connecting block (440). The third connecting block (440) is connected to the longitudinal sealing block fixing block (600) through the fixing screw (450).

5. The longitudinal sealing mechanism of a multi-row packaging machine according to claim 1, characterized in that, The second connecting mechanism (700) includes: a second fixed seat (710), a fourth connecting block (720), a fifth connecting block (730), and a sixth connecting block (740). The fourth connecting block (720) is connected to the fifth connecting block (730) through the second fixed seat (710). The fourth connecting block (720) is connected to the swing arm shaft (360). The fifth connecting block (730) is connected to the sixth connecting block (740). The sixth connecting block (740) is connected to the longitudinal sealing block fixing block (600).

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