A controller and synchronization device

Abstract

The utility model discloses a kind of controller and synchronous device, it is related to hydraulic control technical field, setting adjustment cavity and the adjustment cavity is communicated with the plunger cylinder cavity of multi-cylinder synchronizer, by oil supply to adjustment cavity, to make synchronous plunger move and extend, realize the secondary fine adjustment function of multi-cylinder synchronizer.In the basis of existing servo multi-cylinder synchronizer, increase secondary fine adjustment controller, so that multi-cylinder synchronizer can be secondary fine adjustment according to need, reach the purpose of fine adjustment single or multiple ejector cylinder relative height, to improve the adaptability of product, satisfy user needs.

Description

Technical Field

[0001] This utility model belongs to the field of hydraulic control technology, specifically relating to a controller and a synchronization device. Background Technology

[0002] In the hydraulic systems of ceramic presses, four-cylinder synchronizers are commonly used to control the synchronized movement of four ejector cylinders. The four output ports of the synchronizer are connected to the oil ports of the ejector cylinders. The position, speed, and force of the ejector cylinders can be controlled according to the working conditions.

[0003] In existing technologies, such as the one with publication number CN203770267U and patent titled "An Integrated Servo Multi-Cylinder Synchronizer," it has already been used in mass production of ceramic press products. Figures 4 to 6 As shown, in this technical solution, the servo valve is installed on the side of the control cylinder. The oil port of the control cylinder communicates with the control port of the servo valve through a channel on the cylinder wall, forming a servo control circuit. A displacement sensor is fixed between the control cylinder and the synchronous piston cylinder, and the sensing magnet of the displacement sensor is fixed on the connecting plate. An electromagnetic ball valve used to eliminate synchronization errors is installed on the synchronous piston cylinder body. One end of the valve's control oil port communicates with the synchronous cylinder, and the other end is connected to an external oil port through a transition plate. The transition plate and the synchronous cylinder body are pre-tightened together by four tie rods, and the flow channel of the synchronous cylinder is connected to the external actuator cylinder through the corresponding oil hole of the transition plate.

[0004] However, existing multi-cylinder synchronizers can only achieve the synchronous ejection of multiple ejector cylinders, and the operation and adjustment methods are relatively simple. They are difficult to meet the diverse usage needs in complex production environments. Therefore, it is necessary to develop a controller and synchronization device. Utility Model Content

[0005] The purpose of this utility model is to provide a controller and a synchronization device to solve the above-mentioned technical problems, so that the multi-cylinder synchronizer can be finely adjusted as needed to achieve the purpose of finely adjusting the relative height of one or more ejector cylinders, thereby improving the adaptability of the product and meeting the needs of users.

[0006] To achieve the above-mentioned objectives, the technical solution adopted by this utility model is as follows:

[0007] A controller includes a valve body and an adjustment unit disposed in the valve body. The adjustment unit includes an adjustment component and an adjustment chamber disposed within the valve body. The adjustment chamber is connected to the piston cylinder chamber of a multi-cylinder synchronizer. The adjustment component is movably disposed in the adjustment chamber to adjust the output volume of pressure oil delivered by the adjustment chamber to the piston cylinder chamber.

[0008] Preferably, the multi-cylinder synchronizer has multiple piston cylinder chambers, and the valve body is provided with multiple adjustment units, with each adjustment chamber corresponding to and connected to one of the multiple piston cylinder chambers.

[0009] Preferably, the plurality of adjustment chambers are symmetrically arranged in two columns and multiple rows in the valve body, and the openings of two adjustment chambers in the same row face opposite directions.

[0010] Preferably, the adjustment component divides the adjustment cavity into a first cavity and a second cavity and is capable of adjusting the volume of the first cavity and the second cavity.

[0011] Preferably, the adjustment assembly includes a piston and an adjustment part, the piston being disposed between the first cavity and the second cavity, and the adjustment part being used to adjust the position of the piston within the first cavity and the second cavity.

[0012] Preferably, the adjusting part includes a first connecting block that covers the opening of the adjusting cavity, an adjusting rod that is slidably connected to the first connecting block and extends one end toward the piston, and an adjusting assembly that acts on the other end of the adjusting rod to adjust the position of the adjusting rod.

[0013] Preferably, the adjusting assembly includes a nut disposed on one side of the first connecting block and a screw threadedly connected to the nut, the screw passing through the first connecting block and abutting against the adjusting rod.

[0014] Preferably, the valve body is provided with a first control flow channel communicating with the first cavity and a second control flow channel communicating with the second cavity and communicating with the piston cylinder cavity;

[0015] The controller also includes a control valve connected to the adjustment chamber, and the first control flow channel is connected to the oil inlet circuit of the multi-cylinder synchronizer through the control valve.

[0016] A synchronization device includes a multi-cylinder synchronizer and a controller as described in any of the above.

[0017] Preferably, the multi-cylinder synchronizer includes multiple plunger cylinder chambers, electromagnetic ball valves corresponding to and connected to the multiple plunger cylinder chambers, and channels for delivering pressurized oil to each electromagnetic ball valve; the multiple electromagnetic ball valves are respectively connected to the corresponding plunger cylinder chambers through ejector cylinder channels.

[0018] Multiple adjustment units are provided. The control valve of the controller is connected to the orifice. The multiple adjustment chambers are respectively connected to the ejector cylinder flow channel connected to the corresponding electromagnetic ball valve.

[0019] This application has achieved beneficial technical effects:

[0020] This invention features an adjustment chamber that is connected to the piston cylinder chamber of a multi-cylinder synchronizer. By supplying oil to the adjustment chamber, the synchronizer piston moves and extends, thereby achieving the secondary fine-tuning function of the multi-cylinder synchronizer.

[0021] By adding a secondary fine-tuning controller to the existing servo multi-cylinder synchronizer, the multi-cylinder synchronizer can be fine-tuned as needed to achieve the purpose of fine-tuning the relative height of one or more ejector cylinders, thereby improving the product's adaptability and meeting user needs. Attached Figure Description

[0022] Figure 1 The diagram shown is a structural schematic of the multi-cylinder synchronizer with the mounting controller of this utility model.

[0023] Figure 2 The diagram shown is a structural schematic of the controller of this utility model;

[0024] Figure 3 The diagram shown is a hydraulic schematic of this utility model.

[0025] Figure 4 The diagram shown is a schematic of an existing multi-cylinder synchronizer.

[0026] Figure 5 The diagram shown is a cross-sectional view of an existing multi-cylinder synchronizer.

[0027] Figure 6 The diagram shown is a hydraulic schematic of an existing multi-cylinder synchronizer.

[0028] Figure Labels

[0029] 11-Valve body; 16-Adjusting unit; 9-Multi-cylinder synchronizer; 121-First cavity; 122-Second cavity; 123-Piston; 124-Adjusting part; 125-First connecting block; 126-Adjusting rod; 127-Adjusting assembly; 128-Nut; 129-Screw; 13-First control flow channel; 14-Second control flow channel; 15-Control valve; 91-Control cylinder assembly; 911-Control cylinder body; 9111-Channel; 912-Control cylinder piston ; 92-Synchronizer assembly; 921-Synchronizer cylinder body; 9211-Plunger cylinder chamber; 922-Synchronizer plunger; 923-Ejector cylinder flow passage; 93-Transition plate; 931-Synchronizer cylinder flow passage; 932-Channel; 94-Connecting plate; 951-System pressure oil source; 952-Pressure oil circuit; 953-Return oil circuit; 954-Servo valve; 955-Solenoid ball valve; 956-Pressure reducing valve; 96-Pull rod; 97-Displacement sensor; 98-Actuator cylinder. Detailed Implementation

[0030] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0031] The technical solution of this utility model will be described in detail below with specific embodiments.

[0032] Reference Figures 1 to 6 A controller includes a valve body 11 and an adjustment unit 16 disposed within the valve body 11. The adjustment unit 16 includes an adjustment cavity internally disposed within the valve body 11. The adjustment cavity is disposed within the valve body 11 and connected to the oil circuit of a multi-cylinder synchronizer 9 to adjust the extension amount of the synchronizer plunger. Multiple adjustment cavities are provided, the number corresponding to the number of synchronizer cylinders and the number of connected solenoid ball valves. The multiple adjustment cavities are symmetrically arranged in two columns and multiple rows within the valve body 11, with the openings of two adjustment cavities in the same row facing opposite directions. In this technical solution, four adjustment chambers are provided, corresponding to the number of plunger cylinder chambers 9211 in the multi-cylinder synchronizer 9. Each adjustment chamber is connected to a plunger cylinder chamber 9211 in a one-to-one manner. The adjustment chambers are symmetrically arranged in pairs within the valve body 11. Each adjustment chamber is connected to the oil circuit of the multi-cylinder synchronizer 9. Specifically, the adjustment chamber is connected to the plunger cylinder chamber 9211 of the multi-cylinder synchronizer 9. The adjustment assembly is movably disposed in the adjustment chamber to adjust the output volume of the pressure oil supplied by the adjustment chamber to the plunger cylinder chamber 9211. By supplying oil to the adjustment chamber, the synchronous plunger moves and extends, realizing the secondary fine-tuning function of the multi-cylinder synchronizer.

[0033] The adjustment unit 16 further includes an adjustment component disposed in the adjustment cavity to divide the adjustment cavity into a first cavity 121 and a second cavity 122. The first cavity 121 is connected to the first control flow channel 13; the second cavity 122 is connected to the cylinder chamber 9211 of the 9-piston cylinder of the multi-cylinder synchronizer; the relative size of the volumes of the first cavity 121 and the second cavity 122 is adjusted by the adjustment component, wherein the volume of the second cavity 122 is related to the extension amount of the synchronizer piston, so that the extension amount of the synchronizer piston can be adjusted as needed by adjusting the volumes of the first cavity 121 and the second cavity 122.

[0034] The adjustment assembly 123 includes a piston 123 disposed between a first cavity 121 and a second cavity 122. The edges of the first cavity 121 and the second cavity 122 are flush with each other, forming a first cavity 121 and a second cavity 122 separated on both sides by the piston 123.

[0035] The adjustment assembly further includes an adjustment section 124 for adjusting the position of the piston 123 within the first cavity 121 and the second cavity 122. By adjusting the position of the piston 123, the size of the second cavity 122 is adjusted, thereby adjusting the extension amount of the synchronous plunger 922.

[0036] The adjusting part 124 includes a first connecting block 125 that covers the opening of the adjusting cavity, an adjusting rod 126 that is slidably connected to the first connecting block 125 and extends at one end toward the piston 123, and an adjusting assembly 127 that acts on the other end of the adjusting rod 126 to adjust the position of the adjusting rod 126. The end of the adjusting assembly 127 away from the piston 123 extends to the outside of the valve body 11; the adjusting rod 126 is movably connected inside the first connecting block 125, and the adjusting assembly 127 adjusts the position of the adjusting rod 126, thereby adjusting the position of the piston 123 that the adjusting rod 126 abuts against, and realizing the adjustment of the extension amount of the synchronous plunger 922.

[0037] The adjusting assembly 127 includes a nut 128 disposed on one side of the first connecting block 125 and a screw 129 threadedly connected to the nut 128. The screw 129 passes through the first connecting block 125 and abuts against the adjusting rod 126. In the initial state, the end of the screw 129 facing the adjusting rod 126 abuts against the adjusting rod 126; the screw 129's screwable portion extends beyond the first connecting block 125; the first connecting block 125, nut 128, screw 129, adjusting rod 126, and piston 123 are all coaxially arranged; a portion of the first connecting block 125 extends into the first cavity 121; along the moving direction of the piston 123, the projection of the adjusting rod 126 and the projection of the portion of the first connecting block 125 extending into the first cavity 121 are both smaller than the projection of the first cavity 121 and the projection of the second cavity 122. In this design, the projections of the first cavity 121 and the second cavity 122 overlap. When the position of the piston 123 needs to be adjusted, the screw 129 is turned to move the end of the screw 129 that abuts against the adjusting rod 126, thereby adjusting the position of the adjusting rod 126 and thus the position of the piston 123 that the adjusting rod 126 abuts against, thus adjusting the extension amount of the synchronous plunger. When the screw 129 moves in the opposite direction to the second cavity 122, the volume of the second cavity 122 increases, and vice versa. The volume of the second cavity 122 is positively correlated with the extension amount of the synchronous plunger. Seals are provided on the first connecting block 125, the adjusting rod 126, and the piston 123 to seal high-pressure oil. The first connecting block 125, the adjusting rod 126, and the piston 123 are designed as three independent parts rather than a single integral part for ease of manufacturing.

[0038] The valve body 11 is provided with a first control flow channel 13 connected to the first cavity 121 and a second control flow channel 14 connected to the second cavity 122 and communicating with the piston cylinder cavity 9211. The first control flow channel 13 is connected to the control valve; the second control flow channel 14 is connected to the piston cylinder cavity of the multi-cylinder synchronizer 9; specifically, the second control flow channel 14 is connected to the piston cylinder cavity 9211 via the ejector cylinder flow channel. This technical solution involves adding a controller to the existing multi-cylinder synchronizer structure, specifically connecting the second control flow channel 14 to the ejector cylinder flow channel 923 of the existing multi-cylinder synchronizer. This requires minimal modification to the original mechanism and is a simple and convenient implementation.

[0039] The controller also includes a control valve 15 connected to the adjustment chamber. Specifically, the control valve 15 is a solenoid directional valve.

[0040] The first control flow channel 13 is connected to the oil inlet circuit of the multi-cylinder synchronizer 9 through the control valve 15. The control valve 15 is connected to the pressure reducing valve connected to the pressure oil circuit. The control valve 15 is provided so that after the synchronous plunger 922 is adjusted in the adjustment chamber, the first control flow channel 13 is in the oil discharge state. Since the control valve 15 is connected to the solenoid ball valve 955 of the multi-cylinder synchronizer 9, the solenoid ball valve 955 is energized and opened, so that the pressure oil enters the ejector cylinder flow channel 923 and simultaneously enters the second cavity 122, pushing the piston to the positioning position of the adjusting rod 126, so that the oil in the second cavity 122 is filled, realizing the reset state of the second cavity 122, which facilitates the synchronous plunger 922 to extend and fine-tune again.

[0041] A synchronization device includes a multi-cylinder synchronizer 9 and the controller.

[0042] The multi-cylinder synchronizer 9 includes multiple plunger cylinder chambers 9211, electromagnetic ball valves 955 that correspond one-to-one with and are connected to the multiple plunger cylinder chambers 9211, and orifices 932 that can deliver pressurized oil to each electromagnetic ball valve 955; the multiple electromagnetic ball valves 955 are respectively connected to the corresponding plunger cylinder chambers 9211 through ejector cylinder flow channels 923.

[0043] Multiple adjustment units 16 are provided, and each adjustment unit 16 corresponds one-to-one with a solenoid ball valve 955.

[0044] The controller also includes a control valve 15 connected to multiple adjustment chambers;

[0045] The control valve 15 is connected to the orifice 932, and the multiple adjustment chambers are respectively connected to the ejector cylinder flow passage 923 connected to the corresponding solenoid ball valve 955. One piston cylinder chamber 9211 corresponds to one ejector cylinder.

[0046] Specifically, multiple solenoid ball valves 955 are respectively connected to the second control flow channel 14 of the corresponding connecting plunger cylinder cavity 9211; the control valve 15 is connected to the first control flow channel 13; specifically, the second control flow channel 14 and multiple solenoid valves 955 are all connected to the plunger cylinder cavity 9211 through the corresponding ejector cylinder flow channel 923; the control valve 15 and multiple solenoid ball valves 955 are arranged in parallel, specifically, both are connected to the same channel 932, and the control valve 15 controls the state of the adjustment chamber. When the control valve 15 introduces pressure oil through the first control flow channel 13, it pushes the piston 123 to discharge the oil in the second cavity 122 into the corresponding ejector cylinder flow channel 923, pushing the synchronous plunger 922 to extend a certain stroke again. The stroke size is related to the size of the second cavity 122. By adjusting the size of the second cavity 122, the ejection height can be finely adjusted. When control valve 15 reverses, oil is discharged from the first control flow channel 13. At this time, the ejection system is in the calibration (oil replenishment) stage. The corresponding solenoid ball valve 955 is energized and opens, allowing pressurized oil to enter the ejection cylinder flow channel 923 and simultaneously the second chamber 122. This pushes the piston 123 to the positioning position of the adjusting rod 126, filling the second chamber 122 with oil. After calibration (oil replenishment) is completed, solenoid ball valve 955 is de-energized and closes. Then, control valve 15 reverses again, allowing pressurized oil to flow through the first control flow channel 13 for a second fine-tuning. This process is repeated, with each cycle performing one calibration (oil replenishment) and one fine-tuning.

[0047] The multi-cylinder synchronizer 9 is as disclosed in the technical solution of Chinese Utility Model Patent No. CN 203770267 U. Specifically, it discloses an integrated servo multi-cylinder synchronizer formed by a control cylinder assembly 91, a control cylinder body 911, a channel 9111, a control cylinder piston 912, a synchronizer assembly 92, a synchronizer cylinder body 921, a plunger cylinder cavity 9211, a synchronizer plunger 922, an ejector cylinder flow channel 923, a transition plate 93, a synchronizer cylinder flow channel 931, a channel 932, a connecting plate 94, a system pressure oil source 951, a pressure oil circuit 952, a return oil circuit 953, a servo valve 954, a solenoid ball valve 955, a pressure reducing valve 956, a pull rod 96, a displacement sensor 97, and an actuator cylinder 98. The secondary fine-tuning controller of this technical solution is based on this and an additional controller is added.

[0048] In this technical solution, four second cavities 122 are provided, each corresponding to a regulator connected to the control valve in the schematic diagram. The four regulators are controlled by the control valve 15, which connects to the corresponding control chamber (first cavity 121) of each regulator via the first control flow channel 13. When pressure oil enters the control valve 15 through the first control flow channel 13, it pushes the piston 123 to discharge the oil from the second cavity 122 into the corresponding ejector cylinder flow channel 923, pushing the synchronous plunger 922 to extend a certain stroke again, thereby controlling the extension of the target ejector cylinder. Each of the four regulators corresponds to one second cavity 122. The volume of the corresponding second cavity can be adjusted by the screw 129; adjusting the screw 129 outward increases the volume of the second cavity 122, and vice versa.

[0049] Existing multi-cylinder synchronizers cannot fine-tune the relative height of each ejector cylinder, yet users sometimes require this adjustment. This is because the proportional servo valve does not directly control individual ejector cylinders, and therefore cannot directly set or control their height. Current oil replenishment methods uniformly calibrate all four ejector cylinders, and any deviations after calibration are no longer considered. Specific technical issues or situations requiring individual adjustment of a single ejector cylinder include: 1) Manufacturing errors in the mold, resulting in inconsistent heights at the four corners. 2) Errors caused by inconsistent volumes of the four independent hydraulic cavities from the synchronizer to the ejector cylinders. Inconsistent volumes and elastic compression among the four cavities lead to errors. 3) Errors caused by leakage. Inconsistent leakage rates among the four independent cavities also cause errors. 4) Errors caused by packing during operation, such as a lower front and higher rear. 5) Fine-tuning of the front-to-back or left-to-right height is required for process requirements. 6) Fine-tuning the height of a single cylinder is needed for synchronizer main cylinder off-center load compensation to achieve uniform force distribution across all four cylinders and prevent damage from off-center loads. Therefore, it is necessary to adjust the height of one or more individual ejector cylinders.

[0050] The purpose of this technical solution is to add a secondary fine-tuning controller to the existing servo multi-cylinder synchronizer. After each calibration (oil replenishment) of the ejector device, a secondary fine-tuning can be performed as needed to achieve the purpose of fine-tuning the relative height of one or more ejector cylinders. For example, in this technical solution, one of the four ejector cylinders can be adjusted to extend a certain height relative to the other three ejector cylinders, or the extension amount of multiple ejector cylinders can be adjusted as needed, thereby achieving the purpose of fine-tuning the height of the ejector cylinders. The relative height of one or more ejector cylinders compared with the rest of the ejector cylinders is adjustable, thereby improving the adaptability of the product and meeting user needs.

[0051] The servo multi-cylinder synchronizer with secondary fine-tuning function can perform secondary fine-tuning as needed after each calibration of the ejector device, achieving the purpose of fine-tuning the relative height of one or more ejector cylinders, and has the following advantages:

[0052] 1. It can eliminate mold manufacturing errors and compensate for them through secondary fine-tuning.

[0053] 3. It can eliminate the error caused by the inconsistent volume of the four independent hydraulic cavities from the synchronizer to the ejector cylinder.

[0054] 4. It can eliminate errors caused by leakage. For example, errors caused by inconsistent leakage rates in the four independent cavities.

[0055] 5. It can eliminate errors caused by inconsistent packing during operation, such as differences in height between the front and back, or between the left and right sides.

[0056] 6. It can meet the special needs of the process and make fine adjustments to the height in front and behind or left and right.

[0057] 7. Fine-tuning can be used to compensate for the off-center load of the synchronizer cylinder, improve the stress condition of the synchronizer cylinder, extend the service life of the synchronizer, and reduce the user's maintenance costs.

[0058] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0059] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

[0060] The embodiments of the controller and synchronization device provided by this utility model have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the core ideas of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principles of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A controller, characterized in that, Includes a valve body (11) and an adjustment unit (16) disposed in the valve body (11). The adjustment unit (16) includes an adjustment component and an adjustment chamber disposed in the valve body (11). The adjustment chamber is connected to the piston cylinder chamber (9211) of the multi-cylinder synchronizer (9). The adjustment component is movably disposed in the adjustment chamber to adjust the output volume of the pressure oil delivered by the adjustment chamber to the piston cylinder chamber (9211).

2. The controller according to claim 1, characterized in that, The multi-cylinder synchronizer (9) has multiple piston cylinder chambers (9211), and the valve body (11) is provided with multiple adjustment units (16). The multiple adjustment chambers are connected to the multiple piston cylinder chambers (9211) in a one-to-one correspondence.

3. The controller according to claim 2, characterized in that, The multiple adjustment chambers are symmetrically arranged in two columns and multiple rows in the valve body (11), and the openings of the two adjustment chambers in the same row face opposite directions.

4. The controller according to any one of claims 1 to 3, characterized in that, The adjustment component divides the adjustment cavity into a first cavity (121) and a second cavity (122) and is capable of adjusting the volume of the first cavity (121) and the second cavity (122).

5. The controller according to claim 4, characterized in that, The adjustment assembly includes a piston (123) and an adjustment part (124). The piston (123) is disposed between the first cavity (121) and the second cavity (122). The adjustment part (124) is used to adjust the position of the piston (123) in the first cavity (121) and the second cavity (122).

6. The controller according to claim 5, characterized in that, The adjustment part (124) includes a first connecting block (125) that covers the opening of the adjustment cavity, an adjustment rod (126) that is slidably connected to the first connecting block (125) and extends at one end toward the piston (123), and an adjustment assembly (127) that acts on the other end of the adjustment rod (126) to adjust the position of the adjustment rod (126).

7. The controller according to claim 6, characterized in that, The adjusting assembly (127) includes a nut (128) disposed on one side of the first connecting block (125) and a screw (129) threadedly connected to the nut (128). The screw (129) passes through the first connecting block (125) and abuts against the adjusting rod (126).

8. The controller according to claim 4, characterized in that, The valve body (11) is provided with a first control flow channel (13) that communicates with the first cavity (121) and a second control flow channel (14) that communicates with the second cavity (122) and connects to the piston cylinder cavity (9211). The controller also includes a control valve (15) connected to the adjustment chamber, and the first control flow channel (13) is connected to the oil inlet circuit of the multi-cylinder synchronizer (9) through the control valve (15).

9. A synchronization device, comprising a multi-cylinder synchronizer (9), characterized in that, It also includes the controller as described in any one of claims 1 to 8.

10. The synchronization device according to claim 9, characterized in that, The multi-cylinder synchronizer (9) includes multiple piston cylinder chambers (9211), electromagnetic ball valves (955) corresponding to and connected to the multiple piston cylinder chambers (9211), and channels (932) for conveying pressure oil to each electromagnetic ball valve (955); the multiple electromagnetic ball valves (955) are respectively connected to the corresponding piston cylinder chambers (9211) through ejector cylinder flow channels (923); Multiple adjustment units (16) are provided. The control valve (15) of the controller is connected to the channel (932). The multiple adjustment chambers are respectively connected to the ejector cylinder flow channel (923) connected to the corresponding electromagnetic ball valve (955).

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