Transmission mechanism of bag making machine

Abstract

The utility model discloses a transmission mechanism of a bag making machine, which comprises a driving device and a plurality of driven devices, the driving device comprises a motor fixed on a rack, and a first moving guide plate and a second moving guide plate which are respectively arranged on two sides of the rack; the two ends of the first moving guide plate and the two ends of the second moving guide plate are connected to the eccentric shafts through connecting bases respectively, an output shaft of the motor is connected to one eccentric shaft in a driving mode through a driving device, and the driven device comprises a third moving guide plate and a fourth moving guide plate which are arranged on the two sides of the rack respectively. The two ends of the third movable guide plate and the two ends of the fourth movable guide plate are connected to the eccentric shafts through connecting bases respectively, and the fourth movable guide plate is connected to the second movable guide plate through a linkage device. The device is compact in structure, the same motor drives multiple groups of movable guide plates, and energy consumption is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging, in particular to a transmission mechanism of a bag making machine. Background Art

[0002] Bag making machine is a kind of equipment for making various plastic packaging bags. With the development of society, plastic packaging bags have become an indispensable product in people's lives. Bag making machine includes longitudinal sealing mechanism, transverse sealing mechanism and hot spot mechanism etc. which are spaced apart along the conveying direction. Each mechanism must be equipped with a separate driving mechanism, which makes the overall structure of bag making machine complex and the synchronization between mechanisms is poor. It is easy to pull the film materials of adjacent stations, causing deformation of film materials and poor precision. Therefore, it is necessary to propose improvements. Utility Model Content

[0003] The purpose of the utility model is to provide a transmission mechanism for a bag making machine to solve the problems raised in the above background technology.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A transmission mechanism of a bag making machine includes a driving device and a plurality of driven devices, wherein the driving device includes a motor fixed to a frame and a first movable guide plate and a second movable guide plate respectively arranged on both sides of the frame, the two ends of the first movable guide plate and the second movable guide plate are respectively connected to an eccentric shaft through a connecting seat, the output shaft of the motor is driven and connected to one of the eccentric shafts through a driving device, and the driven device includes a third movable guide plate and a fourth movable guide plate respectively arranged on both sides of the frame, the two ends of the third movable guide plate and the fourth movable guide plate are respectively connected to the eccentric shaft through a connecting seat, and the fourth movable guide plate is connected to the second movable guide plate through a linkage device.

[0006] Furthermore, in the transmission mechanism of the above-mentioned bag making machine, the driving device includes a first swing seat fixed to the motor output shaft, a second swing seat fixed to the corresponding eccentric shaft, and a driving plate connected between the first swing seat and the second swing seat.

[0007] Furthermore, in the transmission mechanism of the above-mentioned bag making machine, the two ends of the driving plate are rotatably connected to the corresponding first swing seat and the second swing seat through a swing pin, and the swing pin is eccentrically arranged between the output shaft of the motor and the corresponding eccentric shaft.

[0008] Furthermore, in the transmission mechanism of the above-mentioned bag making machine, an arc-shaped sampling plate concentric with the motor output shaft is arranged on the outer side of the frame near the motor, a sampling groove is arranged in the sampling plate, and a sampling sensor is arranged, and a sampling block corresponding to the sampling sensor is arranged on the first swing seat.

[0009] Furthermore, in the transmission mechanism of the bag-making machine, an induction magnet is embedded on the side of the sampling block away from the first swing seat.

[0010] Furthermore, in the transmission mechanism of the above-mentioned bag making machine, the linkage device includes a third swing seat connected to one end of the eccentric shaft close to the second movable guide plate or the fourth movable guide plate and a linkage plate connected between adjacent third swing seats.

[0011] Furthermore, in the transmission mechanism of the above-mentioned bag-making machine, the linkage plate includes two connecting strips arranged in parallel, and both ends of the connecting strips are rotatably connected to the corresponding third swing seats respectively.

[0012] Furthermore, in the transmission mechanism of the bag making machine, a plurality of connecting bolts are connected between the two connecting strips, and washers are sleeved on the surfaces of the connecting bolts, and the washers are arranged between the two connecting strips.

[0013] Furthermore, in the transmission mechanism of the bag-making machine, guide wheels are respectively provided at both ends of the first movable guide plate, the second movable guide plate, the third movable guide plate and the fourth movable guide plate.

[0014] Furthermore, in the transmission mechanism of the bag-making machine, the guide wheel is rotatably arranged on the frame via an eccentric small shaft.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The utility model has a compact structure, and the motor drives the active device and the driven device simultaneously, thereby improving the synchronization of processing and reducing energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the transmission mechanism of the bag making machine in a specific embodiment of the utility model.

[0018] Figure 2 It is a schematic diagram of the installation of a linkage device of a bag making machine in a specific embodiment of the utility model.

[0019] Figure 3 It is a schematic diagram of the installation of a driving device in a specific embodiment of the utility model.

[0020] Figure 4 It is a transmission schematic diagram of a driving device and a linkage device in a specific embodiment of the utility model.

[0021] Figure 5 The utility model is a schematic diagram of the installation of an eccentric shaft in a specific embodiment.

[0022] Figure 6 The figure is a schematic diagram of the installation of the third movable guide plate and the fourth movable guide plate in a specific embodiment of the utility model.

[0023] Figure 7 It is a structural schematic diagram of a linkage plate in a specific embodiment of the utility model.

[0024] Figure 8 It is a structural schematic diagram of an eccentric shaft in a specific embodiment of the utility model.

[0025] Fig. 9 It is an enlarged schematic diagram of an eccentric shaft in a specific embodiment of the utility model.

[0026] Fig.10 It is a schematic structural diagram of an eccentric small shaft in a specific embodiment of the utility model. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0028] Reference Figures 1 to 10 As shown, a transmission mechanism of a bag making machine includes a driving device and a plurality of driven devices, the driving device includes a motor (not shown) fixed to a frame and a first movable guide plate 1 and a second movable guide plate 2 respectively arranged on both sides of the frame, the first movable guide plate 1 and the second movable guide plate 2 are respectively connected to an eccentric shaft 4 via a connecting seat 3 at both ends, the output shaft of the motor is driven and connected to an eccentric shaft 4 via a driving device 5, the driven device includes a third movable guide plate 6 and a fourth movable guide plate 7 respectively arranged on both sides of the frame, the third movable guide plate 6 and the fourth movable guide plate 7 are respectively connected to the eccentric shaft 4 via a connecting seat 3 at both ends, and the fourth movable guide plate 7 is connected to the second movable guide plate 2 via a linkage device 8.

[0029] In this technical solution, the frame is an existing structure, which is spliced ​​by wall panels, partitions and table foot bolts, etc. The two ends of the eccentric shaft are rotatably connected to the wall panels corresponding to the frame through conventional bearing seats, and penetrate to the outside of the wall panels. The two ends of the eccentric shaft are respectively protruded with eccentric parts, and the two ends of the first movable guide plate, the second movable guide plate, the third movable guide plate and the fourth movable guide plate are respectively connected to the end of the corresponding eccentric shaft through the connecting seat, and the connecting seat is rotatably connected to the eccentric part of the eccentric shaft through conventional bearings, etc., and the corresponding first movable guide plate, the second movable guide plate, the third movable guide plate and the fourth movable guide plate are driven during the rotation of the eccentric shaft. Lifting and lowering, thereby driving the lifting and lowering of the transverse sealing mechanism, etc., the first movable guide plate, the second movable guide plate, the third movable guide plate and the fourth movable guide plate have the same structure, and the length is determined according to the actual workstation requirements. A T-shaped slide rail is arranged on the top thereof to facilitate the installation and adjustment of the transverse sealing mechanism, etc.; the eccentric shaft of the fourth movable guide plate is connected to the eccentric shaft of the second movable guide plate through a linkage device, and rises and falls with the lifting and lowering of the second movable guide plate, and drives the corresponding third movable guide plate to rise and fall through the corresponding eccentric shaft. The motor drives the first movable guide plate, the second movable guide plate, the third movable guide plate and the fourth movable guide plate to rise and fall at the same time, making the bag making machine more compact as a whole.

[0030] For example, see Figures 1 to 5 As shown, the driving device 5 includes a first swing seat 51 fixed to the motor output shaft, a second swing seat 52 fixed to the corresponding eccentric shaft 4 and a driving plate 53 connected between the first swing seat 51 and the second swing seat 52 .

[0031] In this technical solution, the motor can be selected from conventional servo motors, etc., and is fixed to the frame through a conventional motor seat, and its output shaft passes through the wall panel close to the first movable guide plate side and is connected to the first swing seat, one end of the first swing seat is sleeved on the output shaft of the motor and is connected by a key connection or the like, one end of the second swing seat is sleeved on the corresponding eccentric shaft and is connected by a key connection or the like, the motor drives the first swing seat to rotate or swing, and drives the second swing seat to rotate or swing through the drive plate, drives the eccentric shaft to rotate, thereby driving the first movable guide plate and the second movable guide plate to rise and fall; in actual application, the movable guide plates corresponding to the transverse sealing mechanism with a larger load are selected as the first movable guide plate and the second movable guide plate, and the motor is directly connected to the first movable guide plate through a driving device to reduce the load borne by the linkage device, wherein, in order to facilitate the processing of the first movable guide plate and the second movable guide plate with a longer length, the first movable guide plate and the second movable guide plate can be respectively set to a segmented structure, and rigidly connected through a connecting block, and the two ends of each segment are respectively connected with an eccentric shaft through a connecting seat.

[0032] For example, see Figures 1 to 5As shown, both ends of the driving plate 53 are rotatably connected to the corresponding first swing seat 51 and the second swing seat 52 through a swing pin, and the swing pin is eccentrically arranged between the output shaft of the motor and the corresponding eccentric shaft 4.

[0033] In this technical solution, the swing pin is fixed to the first swing seat and the second swing seat by means of threaded connection, etc., and is rotatably connected to the drive plate by bearings, etc. The motor drives the first swing seat to rotate or swing, and drives the second swing seat to rotate or swing through the drive plate, driving the eccentric shaft to rotate, thereby driving the first movable guide plate and the second movable guide plate to rise and fall.

[0034] For example, see Figures 3 to 5 As shown, an arc-shaped sampling plate 54 concentric with the motor output shaft is arranged on the outer side of the frame near the motor, a sampling groove is arranged in the sampling plate 54, and a sampling sensor (not shown) is arranged, and a sampling block 511 corresponding to the sampling sensor is arranged on the first swing seat 51.

[0035] In this technical solution, the sampling plate is made of metal plate through sheet metal processes such as bending, and has mounting parts protruding from both ends, and is fixed to the wall panel of the frame by bolts, etc. The sampling plate and the output shaft of the motor are coaxially arranged, and a conventional sensor is provided to cooperate with the servo motor to control the rotation angle of the first swing seat, thereby controlling the lifting stroke of the first movable guide plate and the second movable guide plate.

[0036] For example, see Figures 3 to 5 As shown, an induction magnet is embedded on the side of the sampling block 511 away from the first swing seat 51 .

[0037] In this technical solution, a long waist hole is machined in the sampling block, which is fixed to the first swing seat with bolts, etc. The sampling sensor uses an existing magnetic induction proximity switch, and is arranged in the sampling slot along the radial direction of the sampling block through a nut to cooperate with a servo motor to control the rotation angle of the first swing seat, thereby controlling the lifting stroke of the first movable guide plate and the second movable guide plate.

[0038] For example, see Figures 1 to 10 As shown, the linkage device 8 includes a third swing seat 81 connected to one end of the eccentric shaft 4 close to the second movable guide plate 2 or the fourth movable guide plate 7 and a linkage plate 82 connected between adjacent third swing seats 81 .

[0039] In this technical solution, one end of the third swing seat is sleeved on the corresponding eccentric shaft and connected by a key connection or the like, and the other end is provided with another two pin holes, and is rotatably connected to the end of the corresponding linkage plate by pins and bearings or the like, and the third swing seat and the corresponding connecting seat are spaced apart to avoid interference; a linkage plate is also connected between the two third swing seats connected to the same fourth movable guide plate to ensure the synchronization of movement of the two ends of the fourth movable guide plate, and a linkage plate is connected between the two adjacent third swing seats between two adjacent fourth movable guide plates for transmission between the fourth movable guide plates, and the two linkage plates connected to the same third swing seat are staggered to avoid interference.

[0040] For example, see Figures 4 to 7 As shown, the linkage plate 82 includes two parallel connecting strips, and both ends of the connecting strips are rotatably connected to the corresponding third swing seats 81 respectively.

[0041] In this technical solution, the connecting strips are respectively arranged on both sides of the third swing seat, and the third swing seat is acted on by corresponding pins at the same time, so as to improve the uniformity of the force applied to the third swing seat.

[0042] For example, see Figures 4 to 7 As shown, a plurality of connecting bolts are connected between the two connecting strips, and washers are sleeved on the surfaces of the connecting bolts, and the washers are arranged between the two connecting strips.

[0043] In this technical solution, the connecting bolts ensure the synchronization between the two connecting strips, and the washers ensure the strength of the two connecting strips to avoid deformation such as bending.

[0044] For example, see Figures 1 to 10 As shown, guide wheels 9 are respectively provided at both ends of the first movable guide plate 1 , the second movable guide plate 2 , the third movable guide plate 6 and the fourth movable guide plate 7 .

[0045] In this technical solution, the guide wheel is made of bearings, etc., and rolls against the corresponding end surfaces of the first movable guide plate, the second movable guide plate, the third movable guide plate and the fourth movable guide plate to improve the lifting and lowering accuracy of the first movable guide plate, the second movable guide plate, the third movable guide plate and the fourth movable guide plate.

[0046] For example, see Fig.10 As shown, the guide wheel 9 is rotatably arranged on the frame via an eccentric small shaft 91 .

[0047] In this technical solution, one end of the eccentric small shaft is fixed to the wall panel of the frame by means of nuts and washers, and the guide wheel is rotatably set at the eccentric end of the eccentric small shaft by means of the nut. During the installation process, the distance between the guide wheel and the corresponding first movable guide plate, the second movable guide plate, the third movable guide plate and the fourth movable guide plate is adjusted by rotating the fixed position of the eccentric small shaft to ensure that the guide wheel rolls against the corresponding end surfaces of the first movable guide plate, the second movable guide plate, the third movable guide plate and the fourth movable guide plate.

[0048] In summary, the utility model has a compact structure, and the motor drives the active device and the driven device at the same time, thereby improving the synchronization of processing and reducing energy consumption.

[0049] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0050] The above is only a specific implementation of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A transmission mechanism for a bag making machine, characterized in that: It includes a driving device and a plurality of driven devices, the driving device includes a motor fixed to a frame and a first movable guide plate and a second movable guide plate respectively arranged on both sides of the frame, the two ends of the first movable guide plate and the second movable guide plate are respectively connected to the eccentric shaft through a connecting seat, the output shaft of the motor is driven and connected to one of the eccentric shafts through a driving device, the driven device includes a third movable guide plate and a fourth movable guide plate respectively arranged on both sides of the frame, the two ends of the third movable guide plate and the fourth movable guide plate are respectively connected to the eccentric shaft through a connecting seat, and the fourth movable guide plate is connected to the second movable guide plate through a linkage device.

2. The transmission mechanism of a bag making machine according to claim 1, characterized in that: The driving device comprises a first swing seat fixed to the output shaft of the motor, a second swing seat fixed to the corresponding eccentric shaft, and a driving plate connected between the first swing seat and the second swing seat.

3. The transmission mechanism of a bag making machine according to claim 2, characterized in that: The two ends of the driving plate are rotatably connected to the corresponding first swing seat and the second swing seat through a swing pin, and the swing pin is eccentrically arranged between the output shaft of the motor and the corresponding eccentric shaft.

4. The transmission mechanism of a bag making machine according to claim 2, characterized in that: An arc-shaped sampling plate concentric with the motor output shaft is arranged on the outer side of the frame close to the motor, a sampling slot and a sampling sensor are arranged in the sampling plate, and a sampling block corresponding to the sampling sensor is arranged on the first swing seat.

5. The transmission mechanism of a bag making machine according to claim 4, characterized in that: An induction magnet is embedded on one side of the sampling block away from the first swing seat.

6. The transmission mechanism of a bag making machine according to claim 1, characterized in that: The linkage device comprises a third swing seat connected to one end of the eccentric shaft close to the second movable guide plate or the fourth movable guide plate and a linkage plate connected between adjacent third swing seats.

7. The transmission mechanism of a bag making machine according to claim 6, characterized in that: The linkage plate comprises two parallel connecting strips, and the two ends of the connecting strips are respectively rotatably connected to the corresponding third swing seats.

8. The transmission mechanism of a bag making machine according to claim 7, characterized in that: A plurality of connecting bolts are connected between the two connecting strips. Washers are sleeved on the surfaces of the connecting bolts, and the washers are arranged between the two connecting strips.

9. The transmission mechanism of a bag making machine according to claim 1, characterized in that: Both ends of the first moving guide plate, the second moving guide plate, the third moving guide plate and the fourth moving guide plate are respectively provided with guide wheels.

10. The transmission mechanism of a bag making machine according to claim 9, characterized in that: The guide wheel is rotatably arranged on the frame via an eccentric small shaft.

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