Transmission mechanism of powder forming machine and control method of transmission mechanism

Abstract

The invention discloses a transmission mechanism of a powder forming machine and a control method of the transmission mechanism, and relates to the technical field of powder forming, and the transmission mechanism of the powder forming machine comprises a driving unit which is installed on a rack and is provided with a rotatable driving end; one end of the transmission shaft is connected with the driving end of the driving unit, and a lifting transmission assembly is arranged on the transmission shaft; the pressurizing unit is connected with the lifting transmission assembly so that the pressurizing unit can move up and down in a reciprocating mode, by using a double-pull-rod mode, pressing stress is converted into double-pull-rod axial stress from radial stress of all connecting shafts, equipment stress is more balanced, and stability is guaranteed; a transmission mechanism of equipment is greatly simplified, so that the overall size and weight of the forming machine are finer and lighter, and the maximum pressing rate of the improved forming machine can be increased to 60 times per minute from 30 times per minute. The invention further discloses a control method of the transmission mechanism of the powder forming machine. The control method is applied to the transmission mechanism of the powder forming machine.

Description

Technical Field

[0001] The present invention relates to the technical field of powder molding, and more specifically, to a transmission mechanism of a powder molding machine. The present invention also relates to a control method of the transmission mechanism of a powder molding machine, which is applied to the transmission mechanism of the above-mentioned powder molding machine. Background Art

[0002] High-speed and stable powder forming machines are the basic requirements for the development of forming technology and efficient production. High-speed and stable powder forming machines are used to ensure the processing efficiency and product stability of pressed products.

[0003] The existing mechanical powder forming machine is driven by a motor belt drive to drive a reducer, and the reducer drives the main shaft to rotate. The main shaft is equipped with an eccentric wheel in the form of a key and a keyway. The main shaft is driven to rotate by the motor, and the eccentric wheel rotates accordingly; a connecting rod is connected to the eccentric wheel, and the connecting rod is further connected to a long pull rod. The pull rod is connected to the upper lever, and the upper lever is connected to the crossbeam. When the eccentric wheel rotates, multiple components are actuated to drive the crossbeam to do reciprocating motion up and down, thereby realizing the pressing action.

[0004] The problem with the prior art is that there are many connection structures in the above-mentioned transmission system, and the transmission method for the motor to transmit power from the lower part to the crossbeam is relatively complicated, resulting in limited pressing efficiency.

[0005] In summary, how to improve the pressing efficiency of the molding machine is a problem that needs to be solved urgently by those skilled in the art. Summary of the invention

[0006] In view of this, an object of the present invention is to provide a transmission mechanism for a powder forming machine, which effectively improves the pressing efficiency of the forming machine.

[0007] Another object of the present invention is to provide a control method for a transmission mechanism of a powder forming machine, which is applied to the transmission mechanism of the above-mentioned powder forming machine.

[0008] In order to achieve the above object, the present invention provides the following technical solutions:

[0009] A transmission mechanism of a powder forming machine, comprising:

[0010] A driving unit, mounted on the frame and having a rotatable driving end;

[0011] A transmission shaft, wherein a first end of the transmission shaft is transmission-connected to a driving end of the driving unit, and a lifting transmission assembly is disposed on a second end of the transmission shaft;

[0012] The lifting transmission assembly includes an eccentric block arranged at the end of the transmission shaft away from the driving unit, an eccentric shaft arranged on the eccentric block, and a connecting rod rotatably installed on the eccentric shaft, the eccentric shaft and the transmission shaft are not coaxial, and a pressure unit is arranged at the end of the connecting rod away from the eccentric shaft, and the connecting rod is used to drive the pressure unit to move reciprocatingly up and down.

[0013] Preferably, a flange seat is installed on the frame, and one end of the transmission shaft away from the driving unit is fitted and inserted into the flange seat, and bushings are provided between the connecting rod and the eccentric shaft, and between the flange seat and the transmission shaft.

[0014] Preferably, the pressurizing unit comprises:

[0015] A fork frame connected to the displacement output end of the lifting transmission assembly, and a connecting hole is provided on the fork frame;

[0016] A pull rod, passing through the connecting hole to be connected to the fork frame and extending in a vertical direction;

[0017] A crossbeam is connected to one end of the pull rod away from the fork frame.

[0018] Preferably, two connecting holes are provided, the pull rods are inserted into the two connecting holes, the fork frame coincides with the center line of the crossbeam, and the two pull rods are symmetrically distributed along the center line.

[0019] Preferably, a column is provided on the frame, a guide hole is opened in the column, the pull rod is passed through the guide hole, a guide sleeve is provided in the guide hole, and the guide sleeve is sleeved on the pull rod.

[0020] Preferably, the driving unit comprises:

[0021] A motor is arranged on one side of the frame;

[0022] A reducer, wherein the output end of the reducer is connected to an end of the transmission shaft away from the lifting transmission assembly through a coupling, and the input end of the reducer is transmission-connected to the motor.

[0023] Preferably, the output end of the motor is transmission-connected with a first pulley, the input end of the reducer is transmission-connected with a second pulley, and the first pulley and the second pulley are sleeved with a V-belt so that the motor drives the reducer to move.

[0024] Preferably, a first frame is fixedly installed inside the frame, a motor seat is fixed on the first frame, the motor is installed on the motor seat, a casing is also fixed on the frame, and the reducer is accommodated in the casing.

[0025] Preferably, the drive unit further includes a clutch, which is arranged at the input end of the reducer and is used to control the switching or interruption of the power of the reducer. A second frame is arranged on the frame, and the clutch is installed on the second frame.

[0026] A control method for a transmission mechanism of a powder forming machine is applied to the transmission mechanism of the above-mentioned powder forming machine, and the control method comprises:

[0027] Controlling the driving unit to work so as to drive the transmission shaft to rotate along its own axis direction;

[0028] Controlling the lifting transmission assembly to convert the rotational motion of the transmission shaft into linear motion;

[0029] The lifting transmission assembly is controlled to drive the pressurizing unit to move up and down to achieve pressing.

[0030] The transmission mechanism of the powder forming machine provided by the present invention comprises a driving unit, a transmission shaft, a lifting transmission assembly and a pressurizing unit, wherein the driving unit is mounted on a frame and has a rotatable driving end, the first end of the transmission shaft is transmission-connected to the driving end of the driving unit, the second end of the transmission shaft is provided with a lifting transmission assembly, the lifting transmission assembly comprises an eccentric block arranged at an end of the transmission shaft away from the driving unit, an eccentric shaft arranged on the eccentric block and a connecting rod rotatably mounted on the eccentric shaft, the eccentric shaft is not coaxial with the transmission shaft, the end of the connecting rod away from the eccentric shaft is provided with a pressurizing unit, and the connecting rod is used to drive the pressurizing unit to move reciprocally up and down.

[0031] The transmission mechanism of the powder forming machine provided by the present invention greatly simplifies the lifting and transmission components of the equipment and reduces a large number of connecting parts, making the overall size and weight of the forming machine more refined and lightweight. The maximum pressing rate of the improved forming machine can be increased from the original 30 times per minute to 60 times per minute. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0033] Figure 1 This is a schematic diagram of the overall structure of the transmission mechanism of the powder forming machine in this embodiment;

[0034] Figure 2 It is a schematic diagram of a partial explosion mechanism of the transmission mechanism of the powder forming machine in this embodiment;

[0035] Figure 3 It is a front cross-sectional structural schematic diagram of the transmission mechanism of the powder forming machine in this embodiment;

[0036] Figure 4 It is a schematic diagram of the side cross-sectional structure of the transmission mechanism of the powder forming machine in this embodiment.

[0037] Figure 1-Figure 4 , the reference numerals include:

[0038] 1. Frame;

[0039] 2. Drive unit; 21. Motor; 22. Reducer; 23. Clutch;

[0040] 3. Transmission shaft;

[0041] 4. Lifting transmission assembly; 41. Eccentric block; 42. Eccentric shaft; 43. Connecting rod;

[0042] 5. Pressurizing unit; 51. Fork frame; 52. Tie rod; 53. Crossbeam;

[0043] 6. Column; 7. Guide sleeve; 8. First pulley; 9. Second pulley; 10. V-belt; 11. First stand; 12. Motor seat; 13. Second stand; 14. Casing; 15. Flange seat. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] Unless otherwise defined, the technical terms or scientific terms used in the present application shall have the usual meanings understood by persons with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance. Words such as "connected" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly. The embodiments of the present application disclose a transmission mechanism of a powder forming machine and a control method thereof.

[0046] The core of the present invention is to provide a transmission mechanism for a powder forming machine.

[0047] Another core of the present invention is to provide a control method for a transmission mechanism of a powder forming machine, which is applied to the transmission mechanism of the above-mentioned powder forming machine.

[0048] Please refer to Figures 1 to 4 .

[0049] The transmission mechanism of the powder forming machine provided by the present invention includes a driving unit 2, a transmission shaft 3, a lifting transmission assembly 4 and a pressurizing unit 5. The driving unit 2 is installed on the frame 1 and has a rotatable driving end. The first end of the transmission shaft 3 is transmission-connected to the driving end of the driving unit 2. The lifting transmission assembly 4 is arranged on the second end of the transmission shaft 3. The lifting transmission assembly 4 includes an eccentric block 41 arranged at the end of the transmission shaft 3 away from the driving unit 2, an eccentric shaft 42 arranged on the eccentric block 41, and a connecting rod 43 rotatably installed on the eccentric shaft 42. The eccentric shaft 42 is not coaxial with the driving shaft 3. The pressurizing unit 5 is arranged at the end of the connecting rod 43 away from the eccentric shaft 42. The connecting rod 43 is used to drive the pressurizing unit 5 to move back and forth up and down.

[0050] Specifically, the transmission mechanism of the powder forming machine provided by the present invention is partially or completely placed in the frame 1, and the frame 1 provides support and installation space for the transmission mechanism. The frame 1 is a square shell-type structure, which can provide protection for each component and make the appearance of the equipment neater. In addition, the frame 1 also has a horizontal working surface for providing support for the material so that the material can be pressed by the pressurizing unit 5 thereon. The driving unit 2 drives the transmission shaft 3 to rotate, and the transmission shaft 3 converts and transmits the torque to the pressurizing unit 5 through the lifting transmission assembly 4, driving the pressurizing unit 5 to move up and down reciprocatingly, so as to achieve the pressing of the material. It can be understood that the pressurizing unit 5 as a whole should be arranged to extend in a vertical plane, and its bottom end cooperates with the transmission shaft 3 located inside the frame 1, and the top end extends to the outside of the frame 1. The mold and other components used to press the material are installed at the top of the pressurizing unit 5. When the pressurizing unit 5 moves up and down, the pressing of the material is completed by the mold and other components.

[0051] Further, the eccentric block 41 is set as a cylindrical block structure, the transmission shaft 3 is integrally connected with the eccentric block 41, and two eccentric blocks 41 are provided, the two eccentric blocks 41 are parallel to each other and the planes where the two eccentric blocks 41 are located are perpendicular to the transmission shaft 3, the above-mentioned eccentric shaft 42 is fixed between the two eccentric blocks 41, and the axis of the eccentric shaft 42 is spaced apart from the axis of the transmission shaft 3, so that when the transmission shaft 3 rotates, the eccentric shaft 42 is driven to make a circular motion around the axis of the transmission shaft 3. One end of the connecting rod 43 is rotatably connected to the eccentric shaft 42, and the other end is connected to the pressurizing unit 5. When the eccentric shaft 42 makes a circular motion, the end of the connecting rod 43 connected to it moves accordingly, and because the other end of the connecting rod 43 is connected to the pressurizing unit 5, when the connecting rod 43 moves with the eccentric shaft 42, it can drive the pressurizing unit 5 to move accordingly. In this process, the movement of the pressurizing unit 5 is constrained by other structures so that it can only move in the vertical direction to achieve the pressing action. Optionally, the transmission shaft 3, the two eccentric blocks 41 and the eccentric shaft 42 are an integrally formed structure.

[0052] The transmission mechanism of the above-mentioned powder molding machine reduces the components of the transmission mechanism of the powder molding machine through the coordinated arrangement of the drive unit 2, the transmission shaft 3, the lifting transmission assembly 4 and the pressurizing unit 5, greatly simplifies the transmission mechanism, makes the overall size and weight of the equipment more refined and lightweight, and improves the pressing efficiency of the powder molding machine.

[0053] The transmission mechanism of the powder forming machine provided by the present invention is introduced in more detail below with reference to the accompanying drawings and specific embodiments.

[0054] Based on any of the above embodiments, Figure 4 A flange seat 15 is installed on the frame 1, and one end of the transmission shaft 3 away from the driving unit 2 is fitted and inserted into the flange seat 15. Bushings are provided between the connecting rod 43 and the eccentric shaft 42, and between the flange seat 15 and the transmission shaft 3.

[0055] Specifically, a mounting hole for a flange seat 15 is opened on one of the side surfaces of the frame 1, the flange seat 15 is fixed in the mounting hole, and an axial hole adapted to the transmission shaft 3 is formed on the side of the flange seat 15 facing the inside of the frame 1, and one end of the transmission shaft 3 away from the drive unit 2 extends into the axial hole, and a sleeve arranged between the flange seat 15 and the transmission shaft 3 can reduce the wear at the fitting point between the two.

[0056] Based on any of the above embodiments, Figure 2 and Figure 3The pressurizing unit 5 includes a fork frame 51, a pull rod 52 and a cross beam 53. The fork frame 51 is connected to the lifting transmission assembly 4. A connecting hole is provided on the fork frame 51. The pull rod 52 passes through the connecting hole and is connected to the fork frame 51 and extends vertically upward. The cross beam 53 is distributed up and down with the fork frame 51, and the end of the pull rod 52 away from the fork frame 51 is connected to the cross beam 53.

[0057] Specifically, the fork frame 51 and the crossbeam 53 are respectively installed at both ends of the pull rod 52 to form a frame structure in the same vertical plane. The fork frame 51 is located directly below the lifting transmission assembly 4. A mounting groove penetrating the upper surface of the fork frame 51 is provided. The connecting rod 43 of the lifting transmission assembly 4 extends into the mounting groove and is rotatably connected to the fork frame 51. When the transmission shaft 3 rotates, the fork frame 51 is driven to reciprocate up and down through the connecting rod 43, thereby driving the pull rod 52 and the crossbeam 53 to reciprocate up and down. In order to reduce the wear of the connecting rod 43 and the fork frame 51 at the rotational matching point, a bushing or the like can also be configured between the fork frame 51 and the connecting rod 43.

[0058] Furthermore, a vertical through hole is provided on the upper end surface of the frame 1, and one end of the pull rod 52 away from the fork frame 51 extends upward through the through hole, and the cross beam 53 is arranged at the top of the pull rod 52. It can be understood that the cross beam 53 is used to provide an installation position for a mold or other components for pressing materials. In addition, the two ends of the pull rod 52 can be connected to the cross beam 53 and the fork frame 51 respectively by nuts.

[0059] Based on any of the above embodiments, Figure 3 There are two connecting holes, and tie rods 52 are installed in both connecting holes. The center lines of the fork frame 51 and the crossbeam 53 coincide with each other, and the two tie rods 52 are symmetrically distributed along the center line.

[0060] Specifically, the two parallel pull rods 52 are arranged to be away from the middle of the frame 1. When the transmission shaft 3 drives the fork frame 51 to move up and down through the lifting transmission assembly 4, the two pull rods 52 move up and down synchronously, thereby driving the crossbeam 53 to move up and down. With the above structure, the pressing force can be evenly distributed to the axial force of the two pull rods 52, so that the force of the powder forming machine can be more balanced during operation to ensure its stability.

[0061] Based on any of the above embodiments, Figure 3 A column 6 is provided on the frame 1, a guide hole is opened in the column 6, a pull rod 52 is passed through the guide hole, a guide sleeve 7 is also provided in the guide hole, the guide sleeve 7 is fixedly connected to the column 6 and sleeved on the pull rod 52.

[0062] Specifically, the column 6 is fixed to the upper end surface of the frame 1 and covers the above-mentioned through hole, the pull rod 52 is inserted into the column 6, and a plurality of guide sleeves 7 are provided in the extension direction of the pull rod 52. The plurality of guide sleeves 7 have sleeve holes with the same outer diameter as the pull rod 52. By fixing the plurality of guide sleeves 7 to the column 6, when the pull rod 52 moves up and down, the column 6 and the guide sleeve 7 remain stationary. With this structure, the column 6 can provide external protection for the part of the pull rod 52 extending outside the frame 1, and the guide sleeve 7 guides the displacement of the pull rod 52.

[0063] Based on any of the above embodiments, Figure 1 The driving unit 2 includes a motor 21 and a reducer 22. The motor 21 is arranged on one side of the transmission shaft 3. The output end of the reducer 22 is connected to the end of the transmission shaft 3 away from the lifting transmission assembly 4 through a coupling, and the input end of the reducer 22 is transmission-connected to the motor 21.

[0064] Specifically, the output end of the motor 21 and the input end and output end of the reducer 22 are both shaft structures. The motor 21 is electrically connected to the power supply unit and the control unit of the powder molding equipment. The power supply unit provides energy for the motor 21 to operate, and the control unit is used to control the start and stop of the motor 21. By connecting the reducer 22 to the motor 21, the output speed of the motor 21 is reduced and a greater torque is provided, thereby ensuring the stability and reliability of the transmission process. At the same time, it can reduce energy consumption and improve the transmission efficiency of the equipment by reducing friction resistance.

[0065] Furthermore, the output shaft of the reducer 22 is arranged to be located on the same straight line as the transmission shaft 3, and the coupling connecting the reducer 22 and the transmission shaft 3 may specifically be a flange coupling, or other forms of couplings may be used, which are not limited here.

[0066] Based on any of the above embodiments, Figure 1 The output end of the motor 21 is connected to the first pulley 8, the input end of the reducer 22 is connected to the second pulley 9, and the first pulley 8 and the second pulley 9 are sleeved with a V-belt 10 so that the motor 21 drives the reducer 22 to move.

[0067] Specifically, the first pulley 8 and the second pulley 9 have the same structure but different sizes. The first pulley 8 is preferably a small pulley, and the second pulley 9 is a large pulley. The components of the two are roughly a rim, a spoke and a hub. The V-belt 10 structure cooperates with the first pulley 8 and the second pulley 9. Compared with the flat belt drive, the V-belt 10 drive has greater friction and can transmit greater power.

[0068] Furthermore, a key connection can be used to transmit torque between the output shaft of the motor 21 and the first pulley 8, and between the input shaft of the reducer 22 and the second pulley 9. When the motor 21 is started, its output end begins to rotate, driving the first pulley 8 to rotate, and the torque is transmitted to the input shaft of the reducer 22 through the friction force between the V-belt 10 and the first pulley 8 and the second pulley 9.

[0069] Based on any of the above embodiments, Figure 1 A first frame 11 is fixedly installed inside the frame 1, a motor base 12 is fixed on the first frame 11, a motor 21 is mounted on the motor base 12, a housing 14 is also fixed on the frame 1, and a reducer 22 is accommodated in the housing 14.

[0070] Specifically, the motor 21 is fixed by the motor seat 12, and the motor seat 12 is provided with a hollow structure, which is more convenient for heat dissipation of the motor 21. In addition, the motor seat 12 should have a certain height so that the motor 21 is away from the first stand 11 to reduce the transmission of vibration and noise. According to the shape structure of the reducer 22, the housing 14 partially covers the reducer 22 and provides support for the reducer 22.

[0071] Based on any of the above embodiments, Figure 1 The driving unit 2 also includes a clutch 23, which is arranged at the input end of the reducer 22 and is used to control the switching or interruption of the power of the reducer 22. A second frame 13 is arranged on the frame 1, and the clutch 23 is installed on the second frame 13.

[0072] Specifically, the model and specification of the clutch 23 are usually considered based on factors such as the rated torque and maximum torque of the reducer 22 and the working environment to ensure that the clutch 23 has sufficient load-bearing capacity and adaptability.

[0073] When installing the clutch 23, the installation position is the rear end of the input shaft of the reducer 22. According to the determined model and specification of the clutch 23, a second frame 13 matching its size is configured. The second frame 13 is first fixed to a preset position on the first frame 11. After the clutch 23 is installed on the input shaft, it is fixed and connected to the second frame 13 by a clamping nut.

[0074] A control method for a transmission mechanism of a powder forming machine provided by the present invention is applied to the transmission mechanism of the above-mentioned powder forming machine, and the control method comprises:

[0075] Control the driving unit 2 to work, so as to drive the transmission shaft 3 to rotate along its own axis direction;

[0076] Control the lifting transmission assembly 4 to convert the rotational motion of the transmission shaft 3 into linear motion;

[0077] The lifting transmission assembly 4 is controlled to drive the pressurizing unit 5 to move up and down to achieve pressing.

[0078] Specifically, the staff controls the motor 21 to start, and the driving motor 21 drives the first pulley 8 to rotate, and the friction between the V-belt 10 and the first pulley 8 and the second pulley 9 drives the second pulley 9 to rotate, and the second pulley 9 drives the reducer 22 to operate, and the speed is reduced by the gear set in the reducer 22 and the torque is transmitted to the output end of the reducer 22, and then the transmission shaft 3 is driven to rotate through the coupling. When the transmission shaft 3 rotates, the lifting transmission assembly 4 is activated accordingly, thereby driving the fork frame 51 to move back and forth up and down, and the fork frame 51 drives the pull rod 52 and the crossbeam 53 to move synchronously to achieve the pressing of the material on the frame 1.

[0079] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0080] The transmission mechanism and control method of a powder forming machine provided by the present invention are introduced in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the scope of protection of the present invention.

Claims

1. A transmission mechanism of a powder forming machine, characterized in that: include: A drive unit (2) mounted on the frame (1) and having a rotatable drive end; A transmission shaft (3), wherein a first end of the transmission shaft (3) is drivingly connected to a driving end of the driving unit (2), and a lifting transmission assembly (4) is provided on a second end of the transmission shaft (3); The lifting transmission assembly (4) comprises an eccentric block (41) arranged at one end of the transmission shaft (3) away from the driving unit (2), an eccentric shaft (42) arranged on the eccentric block (41), and a connecting rod (43) rotatably mounted on the eccentric shaft (42), wherein the eccentric shaft (42) is not coaxial with the transmission shaft (3), and a pressurizing unit (5) is arranged at one end of the connecting rod (43) away from the eccentric shaft (42), and the connecting rod (43) is used to drive the pressurizing unit (5) to move reciprocatingly up and down.

2. The transmission mechanism of a powder forming machine according to claim 1, characterized in that: A flange seat (15) is mounted on the frame (1); one end of the transmission shaft (3) away from the drive unit (2) is inserted into the flange seat (15); and bushings are provided between the connecting rod (43) and the eccentric shaft (42), and between the flange seat (15) and the transmission shaft (3).

3. The transmission mechanism of a powder forming machine according to claim 1, characterized in that: The pressurizing unit (5) comprises: A fork frame (51) is connected to the displacement output end of the lifting transmission assembly (4), and a connecting hole is formed on the fork frame (51); A pull rod (52) passes through the connection hole to be connected to the fork frame (51) and extends in a vertical direction; A crossbeam (53) is connected to an end of the pull rod (52) away from the fork frame (51).

4. The transmission mechanism of a powder forming machine according to claim 3, characterized in that: Two connection holes are provided, and the pull rods (52) are inserted into the two connection holes. The center lines of the fork frame (51) and the crossbeam (53) coincide with each other, and the two pull rods (52) are symmetrically distributed along the center line.

5. The transmission mechanism of a powder forming machine according to claim 3, characterized in that: The frame (1) is provided with a column (6), a guide hole is provided in the column (6), the pull rod (52) is inserted into the guide hole, a guide sleeve (7) is provided in the guide hole, and the guide sleeve (7) is sleeved on the pull rod (52).

6. A transmission mechanism for a powder forming machine according to any one of claims 1 to 5, characterized in that: The driving unit (2) comprises: A motor (21) is arranged on one side of the frame (1); A reducer (22), wherein the output end of the reducer (22) is connected to an end of the transmission shaft (3) away from the lifting transmission assembly (4) through a coupling, and the input end of the reducer (22) is drivingly connected to the motor (21).

7. The transmission mechanism of a powder forming machine according to claim 6, characterized in that: The output end of the motor (21) is drivingly connected to a first pulley (8), and the input end of the reducer (22) is drivingly connected to a second pulley (9), and a V-belt (10) is sleeved on the first pulley (8) and the second pulley (9), so that the motor (21) drives the reducer (22) to move.

8. The transmission mechanism of a powder forming machine according to claim 6, characterized in that: A first frame (11) is fixedly mounted inside the frame (1), a motor seat (12) is fixed on the first frame (11), the motor (21) is mounted on the motor seat (12), a casing (14) is also fixed on the frame (1), and the reducer (22) is accommodated in the casing (14).

9. The transmission mechanism of a powder forming machine according to claim 6, characterized in that: The drive unit (2) further comprises a clutch (23), wherein the clutch (23) is arranged at the input end of the reducer (22) and is used to control the switching or interruption of the power of the reducer (22); a second frame (13) is arranged on the frame (1), and the clutch (23) is mounted on the second frame (13).

10. A method for controlling a transmission mechanism of a powder forming machine, characterized in that: Applied to a transmission mechanism of a powder forming machine as claimed in any one of claims 1 to 9, the control method comprises: Controlling the driving unit (2) to work so as to drive the transmission shaft (3) to rotate along its own axis direction; Controlling the lifting transmission assembly (4) to convert the rotational motion of the transmission shaft (3) into linear motion; The lifting transmission component (4) is controlled to drive the pressurizing unit (5) to move up and down reciprocatingly to achieve pressing.

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