Heavy-duty round-link chain transmission type roll-over machine

Abstract

The utility model discloses a round link chain transmission heavy -duty turnover moulding press, including the roller seat of installation on the four corners of base, all rotatoryly installed with the roller on the roller seat, and the workbench is rotatoryly installed with four rollers, and the workbench turnover drive mechanism is installed on the base, and the workbench turnover drive mechanism is transmission connection with the workbench. The utility model discloses the structure design ensures that the mould turns over smoothly, stably, and will not appear the phenomenon of deformation, and it realizes that the load is heavier, and the rigidity is stronger, and the service life is longer, and the cost is lower, and the maintenance is more convenient and the maintenance is more efficient, and it not only effectively solved the problem of the deformation of the transmission structure of gear and gear ring on the market to drive the turnover moulding press workbench to roll over, and the problem of the big running vibration, the big noise, the maintenance trouble and the high maintenance cost, and it also solved the problem of the transmission structure of precision short -pitch chain on the market to drive the turnover moulding press workbench to roll over, and the problem of the high manufacturing cost and the power loss in the transmission process.

Description

Technical Field

[0001] This utility model relates to the field of mold flipping machines, and in particular to a heavy-duty mold flipping machine with circular chain drive. Background Technology

[0002] In the field of mold flipping machines, the two structures commonly used to drive the worktable of the mold flipping machine to roll and rotate are gear ring and precision short pitch chain plus gear. (1) In the gear ring structure, the flipping table bears a relatively large workpiece. When the worktable flips a 50-ton mold, due to the insufficient rigidity of the worktable itself, it is easy to cause invisible deformation, resulting in uneven meshing of the gear ring and gear transmission teeth of the worktable, large running vibration, large noise, and easy damage to the gear ring. Large gear rings are difficult to process, troublesome to maintain, and have high maintenance costs. (2) In the comparison of the application of precision short pitch chain drive and heavy-duty round ring chain drive, it was found that, under the condition of ensuring the same output torque at the end, the precision short pitch chain requires larger specifications compared with the heavy-duty round ring chain. Furthermore, the larger diameter of the terminal gear output requires an additional two-stage reduction gear from the reducer to the terminal output, which increases costs and is detrimental to market competitiveness. Meanwhile, with the continuous improvement of domestic heavy-duty circular link chain manufacturing capabilities, this situation can fully meet the production requirements of new mold-changing machines. The reducer can directly drive the terminal output via a coupling, reducing power loss during transmission. Compared to precision short-pitch chain drives, it eliminates the need for a second-stage reduction gear, directly lowering the production cost of the mold-changing machine. At the same time, heavy-duty circular link chains with the same tension cost only about half the price of precision short-pitch chains, and avoid the problem of gear damage caused by the gear ring. Therefore, developing circular link chains for use in the transmission structure of heavy-duty mold-changing machines has become a primary issue to be addressed. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a heavy-duty mold-changing machine with a circular chain drive.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: the heavy-duty mold flipping machine with circular chain drive includes a base, and roller seats are respectively installed at the four corners of the base. Rollers are rotatably installed on the roller seats, and worktables are rolled on the four rollers. A worktable flipping drive mechanism is installed on the base, and the worktable flipping drive mechanism is connected to the worktable in a transmission connection.

[0005] Preferably, the workbench tilting drive mechanism includes a motor, a reducer, a first transmission assembly, a second transmission assembly, a first coupling, and a second coupling. The motor is mounted on the base, the reducer is connected to the output end of the motor, the first transmission assembly and the second transmission assembly are respectively mounted on the base and respectively connected to the workbench. The first transmission assembly and the second transmission assembly are located on both sides of the reducer. The first transmission assembly is connected to the reducer through the first coupling, and the second transmission assembly is connected to the reducer through the second coupling.

[0006] Specifically, the first transmission assembly includes a drive shaft mounted on a base, a drive wheel sleeved on the drive shaft, a first bearing seat and a second bearing seat respectively on both sides of the drive wheel along its axial direction, a first bearing and a second bearing respectively installed in the first bearing seat and the second bearing seat, the first bearing and the second bearing respectively sleeved on the two ends of the drive shaft, a first driven wheel and a second driven wheel respectively on both sides of the drive wheel, the first driven wheel and the second driven wheel are rotatably mounted on the base via the first driven shaft and the second driven shaft respectively, the drive wheel is connected to the first driven wheel and the second driven wheel via a circular chain, a first tensioning assembly and a second tensioning assembly are respectively connected to the two ends of the circular chain, the first tensioning assembly and the second tensioning assembly are respectively mounted on the two ends of the worktable; The structure of the second transmission component is mirror-symmetrical to that of the first transmission component.

[0007] Specifically, the drive wheel includes a wheel body, on the circumference of which are provided several evenly distributed and independent flat oval holes, and on the circumference of which are also provided an annular groove for accommodating the ring of the circular chain, the annular groove communicating with the several flat oval holes; The structures of the first driven wheel and the second driven wheel are the same as those of the driving wheel.

[0008] Specifically, the first tensioning assembly includes a mounting plate, a reference seat is fixedly mounted on the middle of the mounting plate, a connecting seat is provided on one end of the mounting plate, a pin is installed through one end of the connecting seat, the connecting seat is connected to the end of the circular chain through the pin, a screw is provided through the movable reference seat, one end of the screw is fixedly mounted to the other end of the connecting seat, and a nut is threaded onto the other end of the screw.

[0009] Specifically, the bottom of the workbench is fixedly equipped with two chain partitions that serve as an isolation mechanism to prevent the circular chain from contacting the workbench.

[0010] Compared with existing technologies, the advantages of this utility model are as follows: By installing a worktable flipping drive mechanism on the base and designing the structure of the worktable flipping drive mechanism, and by designing the structure of the driving wheel, the first driven wheel, and the second driven wheel in the first and second transmission components, the motor drives the driving wheel to rotate through the reducer and the first coupling. The driving wheel drives the circular chain to transmit power on the first and second driven wheels, thereby driving the worktable to roll and flip smoothly. Its overall structural design has the advantages of greater tensile strength, longer service life, heavier worktable load, stronger rigidity, more convenient maintenance, more efficient maintenance, and lower cost. This overcomes the problems of easy deformation, uneven meshing of the transmission teeth of the worktable's gear ring and gear, large vibration during operation, high noise, difficult processing of large gear rings, troublesome maintenance, high maintenance cost, high production cost, and power loss during transmission when using the transmission structure of the gear ring or precision short pitch chain to drive the worktable of the flipping machine to roll and flip. Attached Figure Description

[0011] For ease of explanation, the present invention will be described in detail below with reference to the preferred embodiments and accompanying drawings.

[0012] Figure 1 This is a perspective view of a heavy-duty mold-changing machine with a circular chain drive according to this utility model.

[0013] Figure 2 This is a perspective view of the workbench flipping drive mechanism and workbench of a heavy-duty mold flipping machine with circular chain drive according to this utility model.

[0014] Figure 3 This is a three-dimensional structural view of the workbench flipping drive mechanism of a heavy-duty mold flipping machine with circular chain drive according to this utility model.

[0015] Figure 4 This is a perspective view of the first or second transmission component of a heavy-duty mold-making machine with a circular chain drive according to this utility model.

[0016] Figure 5 This is an assembly perspective view of the driving wheel, first driven wheel, second driven wheel, circular chain, first tensioning assembly and second tensioning assembly of a heavy-duty mold-changing machine with circular chain drive according to this utility model.

[0017] Figure 6 This is a perspective view of the driving wheel, first driven wheel, or second driven wheel of a heavy-duty mold-making machine with a circular chain drive according to this utility model.

[0018] Figure 7 This is a perspective view of the first or second tensioning component of a heavy-duty mold-changing machine with a circular chain drive according to this utility model. Detailed Implementation

[0019] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of this utility model. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0021] Reference Figure 1 As shown, the present invention discloses a heavy-duty mold flipping machine with a circular chain drive, including a base 1. Roller seats 2 are respectively installed at the four corners of the base 1. Rollers 3 are rotatably installed on each roller seat 2. Worktables 4 are rotatably installed on the four rollers 3. A worktable flipping drive mechanism 5 is installed on the base 1, and the worktable flipping drive mechanism 5 is connected to the worktable 4 in a transmission connection.

[0022] Reference Figure 2 and Figure 3 As shown, the workbench tilting drive mechanism 5 includes a motor 6, a reducer 7, a first transmission assembly 8, a second transmission assembly 9, a first coupling 10, and a second coupling 11. The motor 6 is mounted on the base 1, and the reducer 7 is connected to the output end of the motor 6. The first transmission assembly 8 and the second transmission assembly 9 are respectively mounted on the base 1 and are respectively connected to the workbench 4. The first transmission assembly 8 and the second transmission assembly 9 are located on both sides of the reducer 7, and are respectively connected to the reducer 7 through the first coupling 10 and the second coupling 11.

[0023] By adopting the above technical solution, the motor 6 adjusts the torque through the reducer 7. The reducer 7 is connected to the first transmission assembly 8 and the second transmission assembly 9 through the first coupling 10 and the second coupling 11 respectively. The first transmission assembly 8 and the second transmission assembly 9 drive the worktable 4 to rotate on the four rollers 3.

[0024] Reference Figure 4 and Figure 5As shown, the first transmission assembly 8 includes a drive shaft 80 mounted on the base 1, a drive wheel 81 sleeved on the drive shaft 80, a first bearing seat 82 and a second bearing seat 83 respectively on both sides of the drive wheel 81 along its axial direction, a first bearing 84 and a second bearing 85 respectively installed in the first bearing seat 82 and the second bearing seat 83, the first bearing 84 and the second bearing 85 respectively sleeved on the two ends of the drive shaft 80, a first driven wheel 86 and a second driven wheel 87 respectively on both sides of the drive wheel 81, the first driven wheel 86 and the second driven wheel 87 are rotatably mounted on the base 1 through a first driven shaft 88 and a second driven shaft 89 respectively, the drive wheel 81 is connected to the first driven wheel 86 and the second driven wheel 87 through a circular chain 12, a first tensioning assembly 13 and a second tensioning assembly 14 are respectively connected to the two ends of the circular chain 12, the first tensioning assembly 13 and the second tensioning assembly 14 are respectively mounted on the two ends of the worktable 4; the structure of the second transmission assembly 9 is mirror-symmetrical to the structure of the first transmission assembly 8.

[0025] By adopting the above technical solution, the two ends of the circular chain 12 are connected and installed to the two ends of the worktable 4 through the first tensioning component 13 and the second tensioning component 14 respectively. The circular chain 12 is wrapped around the first driven wheel 86 and the second driven wheel 87 and supports the driving wheel 81. The motor 6 drives the driving wheel 81 to rotate through the reducer 7 and the first coupling 10. The driving wheel 81 drives the circular chain 12 to drive the first driven wheel 86 and the second driven wheel 87, thereby driving the worktable 4 to roll and rotate. This replaces the traditional gear chain transmission mechanism. The transmission structure of the first driven wheel 86, the driving wheel 81, the second driven wheel 87 and the circular chain 12 is adopted. The circular chain 12 can withstand greater tension and has a longer service life. The worktable 4 rolls and rotates more stably, the maintenance cycle is short and the use cost is low.

[0026] Reference Figure 6 As shown, the driving wheel 81 includes a wheel body 811, and a plurality of evenly distributed and independent flat round holes 812 are provided on the circumference of the wheel body 811. The circumference of the wheel body 811 is also provided with an annular groove 813 for accommodating the ring of the circular chain 12. The annular groove 813 communicates with the plurality of flat round holes 812. The structure of the first driven wheel 86 and the second driven wheel 87 is the same as that of the driving wheel 81.

[0027] By adopting the above technical solution, the circular shape of the circular chain 12 is adapted to the flat round hole 812. The driving wheel 81 drives the circular ring of the circular chain 12 through the flat round hole 812, thereby driving the circular chain 12 to transmit. The transmission of the first driven wheel 86, the driving wheel 81, the second driven wheel 87 and the circular chain 12 is stable and reliable, with a long service life. The circular chain 12 not only has low operating cost, but it can also withstand greater tension.

[0028] Reference Figure 7 As shown, the first tensioning assembly 13 includes a mounting plate 131. A reference seat 132 is fixedly mounted on the middle part of the mounting plate 131. A connecting seat 133 is provided on one end of the mounting plate 131. A pin 134 is installed through one end of the connecting seat 133. The connecting seat 133 is connected to the end of the circular chain 12 through the pin 134. A screw 135 is provided through the movable reference seat 132. One end of the screw 135 is fixedly mounted to the other end of the connecting seat 133. A nut 136 is threadedly connected to the other end of the screw 135.

[0029] By adopting the above technical solution, twisting the nut 136 drives the screw 135 to move on the reference seat 132, thereby driving the connecting seat 133 to move closer to or away from the reference seat 132, thereby tightening or loosening the circular chain 12. This makes it easier to replace the circular chain 12 during maintenance, achieving the purpose of high maintenance efficiency and saving time and effort.

[0030] Reference Figure 2 As shown, the bottom of the workbench 4 is fixedly equipped with two chain partitions 15 to isolate the circular chain 12 from the workbench 4 and prevent the circular chain 12 from contacting the workbench 4.

[0031] By adopting the above technical solution, two chain partitions 15 are fixedly installed at the bottom of the workbench 4. The two chain partitions 15 are used to isolate the first transmission assembly 8 and the circular chain 12 of the first transmission assembly 8, respectively, to prevent the circular chain 12 from contacting the workbench 4, and to eliminate the wear of the workbench 4 caused by the collision between the driving wheel 81, the first driven wheel 86 and the second driven wheel 87 and the workbench 4 during the transmission of the circular chain 12. At the same time, the chain partitions 15 fill the gap between the circular chain 12 and the workbench 4, preventing the circular chain 12 from shifting laterally during transmission. This not only improves the smoothness and stability of the workbench 4's rotation, but also reduces the noise during the transmission of the circular chain 12.

[0032] Its overall structural design enables smooth and stable flipping of heavy molds (such as those weighing over 50 tons) without deformation or damage. The flipping section can withstand greater tensile force and has stronger rigidity, achieving the goal of heavier load-bearing capacity and longer service life of the worktable. In addition, it has the advantages of convenient, efficient, and low-cost maintenance. It not only effectively solves the problems of deformation, uneven meshing of the gear ring and gear transmission teeth, large vibration, high noise, difficult processing of large gear rings, troublesome maintenance, and high maintenance costs when using the gear ring transmission structure to drive the worktable of the mold flipping machine to roll and flip heavy molds, but also solves the problems of high manufacturing cost and power loss during transmission caused by the need for a second reduction stage from the reducer to the final output when using the precision short-pitch chain transmission structure to drive the worktable of the mold flipping machine.

[0033] The above embodiments are merely examples of this utility model and are not intended to limit the implementation and scope of this utility model. All technical solutions that are the same as or equivalent to the contents described in the claims of this utility model should be included within the protection scope of this utility model.

Claims

1. A heavy-duty mold-changing machine driven by a circular chain, comprising a base, characterized in that: Roller seats are installed at the four corners of the base, and rollers are rotatably mounted on each roller seat. A worktable is rolled on each of the four rollers. A worktable flipping drive mechanism is installed on the base, and the worktable flipping drive mechanism is connected to the worktable in a transmission manner. The workbench tilting drive mechanism includes a motor, a reducer, a first transmission assembly, a second transmission assembly, a first coupling, and a second coupling. The motor is mounted on a base, and the reducer is connected to the output end of the motor. The first transmission assembly and the second transmission assembly are respectively mounted on the base and connected to the workbench. The first transmission assembly and the second transmission assembly are located on both sides of the reducer, and are respectively connected to the reducer via the first coupling and the second coupling. The first transmission assembly includes a drive shaft mounted on a base, a drive wheel sleeved on the drive shaft, a first bearing seat and a second bearing seat respectively on both sides of the drive wheel along its axial direction, a first bearing and a second bearing respectively installed in the first bearing seat and the second bearing seat, the first bearing and the second bearing respectively sleeved on the two ends of the drive shaft, a first driven wheel and a second driven wheel respectively on both sides of the drive wheel, the first driven wheel and the second driven wheel are rotatably mounted on the base via the first driven shaft and the second driven shaft respectively, the drive wheel is connected to the first driven wheel and the second driven wheel via a circular chain, a first tensioning assembly and a second tensioning assembly are respectively connected to the two ends of the circular chain, the first tensioning assembly and the second tensioning assembly are respectively mounted on the two ends of the worktable; The structure of the second transmission component is mirror-symmetrical to that of the first transmission component.

2. The heavy-duty mold-changing machine with circular chain drive according to claim 1, characterized in that: The drive wheel includes a wheel body, on the circumference of which are a number of evenly distributed and independent flat oval holes. The circumference of the wheel body is also provided with an annular groove for accommodating a ring of a circular chain, and the annular groove communicates with the number of flat oval holes. The structures of the first driven wheel and the second driven wheel are the same as those of the driving wheel.

3. The heavy-duty mold-changing machine with ring chain drive according to claim 2, characterized in that: The first tensioning assembly includes a mounting plate, a reference seat is fixedly mounted on the middle of the mounting plate, a connecting seat is provided on one end of the mounting plate, a pin is installed through one end of the connecting seat, the connecting seat is connected to the end of the circular chain through the pin, a screw is provided through the movable reference seat, one end of the screw is fixedly installed to the other end of the connecting seat, and a nut is threaded onto the other end of the screw.

4. The heavy-duty mold-changing machine with circular chain drive according to claim 3, characterized in that: The bottom of the workbench is fixedly equipped with two chain partitions that serve as an isolation mechanism to prevent the circular chain from contacting the workbench.

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