Press brake apparatus with a pressurization system

Abstract

The utility model discloses a press brake braking device with pressure increasing system, including pressure increasing pump, air receiver, reversing valve and brake, the high pressure gas after pressure increasing pump pressurization is transported to the air receiver in storage through pipeline, reversing valve is fixedly arranged on the brake, and its input end is connected through pipeline with the air receiver, and its output end is connected with the brake pipeline, the brake is fixedly arranged on the machine body, and is including cylinder, brake support, brake spring, brake plate and friction piece, and the cylinder is fixedly arranged on brake support top, and its piston rod passes through brake support top board and is fixedly connected with brake plate, and one end of brake spring is connected with brake plate, and the other end is connected with brake support top board, and the friction piece is fixedly arranged on brake plate bottom part. The utility model discloses a brake device, and through pressure increasing pump promotion work gas pressure, cooperation brake spring's elastic force forms double driving force, and with the help of the quick transmission characteristic of high pressure gas and the sensitive control of reversing valve, brake / brake release action switches quickly, and the running stability is good.

Description

Technical Field

[0001] In the field of pressure machine braking devices, and more specifically, this utility model relates to a pressure machine braking device with a pressurization system. Background Technology

[0002] As a core safety auxiliary device for presses, the braking system's core function is to generate frictional resistance through the contact between the brake's friction pads and the flywheel, thereby hindering the flywheel's rotation and enabling the press to decelerate or stop rapidly. It is a crucial component ensuring the safe and stable operation of the press. Currently, brakes in press braking systems are mainly divided into two mainstream types: pneumatic cylinders and hydraulic cylinders. Although both are widely used in press braking applications, they both have unavoidable technical defects and cannot fully meet the requirements for efficient, safe, and low-cost operation of presses.

[0003] Traditional pneumatic cylinder braking systems are limited by air pressure levels, resulting in significant performance shortcomings: slow braking response leads to poor braking effect, directly reducing the safety of the press operation; more importantly, due to the sluggish response, the brake cannot open in time, easily causing slippage between the friction block and the flywheel, generating a large amount of frictional heat. This frictional heat can not only damage the brake itself but also affect other core components of the press, shortening the overall service life of the equipment and increasing the frequency of failures and repairs. While hydraulic cylinder braking systems offer performance improvements, possessing advantages such as large braking torque, sensitive action, and fast response, and can better solve the braking efficiency problem of pneumatic cylinders, they also bring new cost and maintenance challenges: their operation requires an additional hydraulic station, significantly increasing the initial purchase cost of the equipment; at the same time, hydraulic pipelines are prone to leakage problems during long-term use, not only affecting braking stability but also requiring a large investment of manpower and resources for pipeline inspection and maintenance, greatly increasing the later maintenance costs of the equipment, making it difficult to achieve a balance in terms of cost-effectiveness.

[0004] Therefore, there is an urgent need for a pressure-based braking device that can adjust the braking force, has a large braking torque, allows for easy replacement of brake pads, and provides good braking performance, effectively compensating for the shortcomings of traditional braking devices. Summary of the Invention

[0005] To address the problems of high cost and poor braking performance of existing braking devices, this invention provides a pressure-driven braking device with a booster system to solve these problems.

[0006] To achieve the above objectives, this utility model provides a pressure machine braking device with a booster system, including a booster pump, through which high-pressure gas is transported to a gas storage tank for storage via a pipeline; a reversing valve whose input end is connected to the gas storage tank via a pipeline; and a brake fixedly mounted on the machine body, connected to the output end of the reversing valve via a pipeline, including a cylinder, a brake bracket, a brake spring, a brake plate, and friction pads. The cylinder is fixedly mounted on the top of the brake bracket, and its piston rod passes through the top plate of the brake bracket and is fixedly connected to the brake plate. One end of the brake spring is connected to the brake plate, and the other end is connected to the top plate of the brake bracket. The friction pads are fixedly mounted on the bottom of the brake plate.

[0007] Furthermore, the output end of the reversing valve includes a first air outlet and a second air outlet. The first air outlet is connected to the brake air outlet of the cylinder via a pipeline; the second air outlet is connected to the brake release air outlet of the cylinder via a pipeline.

[0008] Furthermore, the brake is fixedly mounted on the fuselage, and there are two sets of brakes, which are symmetrically arranged on both sides of the flywheel.

[0009] Furthermore, the brake bracket has a U-shaped structure, with its bottom fixed to the machine body by fixing bolts. The top plate of the bracket has through holes and adjustment holes respectively. The through holes are located at the center of the top plate and are used to pass through the piston rod. There are two sets of adjustment holes, which are symmetrically arranged on both sides of the through holes and are used to pass through spring preload screws.

[0010] Furthermore, a cylinder mounting plate is fixedly provided on the top of the brake bracket, and the cylinder is fixedly installed by bolt connection.

[0011] Furthermore, the spring preload screws are symmetrically arranged on both sides of the cylinder, and are threadedly connected to the nuts fixed on the top of the cylinder mounting plate. The bottom end of the rod passes through the cylinder mounting plate and the adjustment hole in sequence and is fixedly connected to the top of the spring adjustment block.

[0012] Furthermore, the brake spring is sleeved on the spring adjusting block, and its two ends are respectively connected to the top of the brake bracket and the brake plate.

[0013] In summary, compared with the prior art, the above-described technical solution conceived by this utility model can achieve the following beneficial effects:

[0014] (1) The pressure machine braking device of this utility model has strong braking force and rapid response, and higher safety. By equipping it with a booster pump and an air tank, the working air pressure is increased by the booster pump, and the elastic force of the brake spring is combined to form a dual driving force. Compared with the traditional cylinder braking device, the braking torque is greatly enhanced. At the same time, the friction area of ​​the friction plate is large, which further increases the friction resistance and ensures that the press can decelerate or stop quickly. By taking advantage of the rapid transmission characteristics of high pressure gas and the sensitive control of the reversing valve, the braking / releasing action is switched quickly. Moreover, the brake spring stores energy in advance when releasing the brake and can release the elastic force quickly when braking, avoiding the problem of friction block slippage and friction heat damage to components caused by the slow response of the traditional cylinder type, and significantly improving the operational safety.

[0015] (2) The pressure braking device of this utility model adopts a pneumatic system of booster pump, air tank and cylinder, which does not require the configuration of a complex and expensive hydraulic station like the hydraulic cylinder device, simplifying the overall structure and greatly reducing the initial purchase cost of the equipment; it eliminates the easily leaking hydraulic pipeline and adopts air pipe connection, which significantly reduces the risk of leakage; at the same time, the braking components such as friction plates are easy to replace, reducing the frequency of inspection and maintenance and the maintenance time, and the maintenance cost in long-term use is far lower than that of the hydraulic cylinder device.

[0016] (3) The pressure machine braking device of this utility model can directly adjust the preload of the brake spring by means of the spring adjustment block and the spring preload screw, thereby flexibly changing the braking force. It can adapt to the braking needs of different specifications of presses and different working loads without replacing the core components.

[0017] (4) The pressure machine braking device of this utility model has pneumatic components that are efficiently connected through air pipes, and the internal parts of the brake are reasonably arranged. The overall size is small and does not occupy too much equipment space, making it easy to integrate and install on the press body.

[0018] (5) The pressure machine braking device of this utility model is equipped with a brake spring, whose elasticity has a buffering and compensating effect, which can offset the influence of instantaneous air pressure fluctuation on braking force and maintain the stable contact pressure between the friction plate and the flywheel; at the same time, the electrical control and mechanical action are coordinated, and braking can be achieved at any position of the press stroke, further ensuring the stability of operation. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a pressure machine braking device with a pressurization system according to an embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the brake structure according to an embodiment of the present invention.

[0021] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically: 1-boost pump, 2-air tank, 3-body, 4-reversing valve, 5-brake, 51-cylinder, 52-cylinder mounting plate, 53-brake bracket, 54-spring adjusting block, 55-brake spring, 56-brake plate, 57-friction pad, 58-spring preload screw, 59-fixing bolt, 6-flywheel. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model. Furthermore, the technical features involved in the various embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0023] like Figures 1-2 As shown, this utility model provides a pressure machine braking device with a pressurization system, including a booster pump 1, an air tank 2, a reversing valve 4, and a brake 5; the high-pressure gas pressurized by the booster pump 1 is transported to the air tank 2 for storage through a pipeline; the reversing valve 4 is fixedly mounted on the brake 5, its input end is connected to the air tank 2 through a pipeline, and its output end is connected to the brake 5 pipeline; the brake 5 is fixedly mounted on the machine body 3, including a cylinder 51, a brake bracket 53, a brake spring 55, a brake plate 56, and a friction plate 57; the cylinder 51 is fixedly mounted on the top of the brake bracket 53, and its piston rod passes through the top plate of the brake bracket 53 and is fixedly connected to the brake plate 56; one end of the brake spring 55 is connected to the brake plate 56, and the other end is connected to the top plate of the brake bracket 53; the friction plate 57 is fixedly mounted on the bottom of the brake plate 56. During braking, the reversing valve 4 inputs high-pressure gas into cylinder 51. The piston rod and brake spring 55 work together to push the brake plate 56 downward. The friction plate 57 presses tightly against the flywheel end face of the press. The frictional resistance between the friction plate 57 and the flywheel hinders the flywheel's rotation, achieving rapid deceleration or stopping of the press and completing the braking action. During brake release, the reversing valve 4 controls the high-pressure gas to enter cylinder 51 in the opposite direction, causing the piston rod to move upward. The brake plate 56 drives the friction plate 57 to disengage from the flywheel end face. At the same time, the brake spring is compressed and stored by the brake plate, preparing for the next braking action. At this time, the flywheel can rotate freely, and the press enters normal working condition. The braking device of this utility model increases the working air pressure through the booster pump 1, forming a dual driving force with the elasticity of the brake spring 55. Compared with the traditional cylinder braking device, the braking torque is greatly enhanced. At the same time, thanks to the rapid transmission characteristics of high-pressure gas and the sensitive control of the reversing valve 4, the braking / brake release action switches quickly. Its structure is compact and its operation is stable.

[0024] like Figure 1As shown in the embodiment of this utility model, the booster pump 1 compresses and boosts the input ordinary air pressure, raising the air pressure to a level higher than that required for traditional cylinder braking, thus providing a high-pressure air source for the braking process.

[0025] The air inlet of the air tank 2 is connected to the booster pump 1 through an air pipe, receiving and storing the high-pressure gas output by the booster pump, and keeping the air pressure inside the tank stable within the set working range; when the braking system needs an air source, it can quickly release the high-pressure gas without relying on the booster pump 1 for real-time pressurization.

[0026] The machine body 3 serves as the main frame of the press. The brake 5 is fixed with bolts, providing a stable mounting base for the brake 5 and bearing the reaction force transmitted during braking, thus ensuring the overall structural stability of the press.

[0027] The reversing valve 4 switches its valve core via an electrical control signal, changing the flow direction of the high-pressure gas. When it receives a braking signal, it controls the valve core to switch to the braking path, allowing the high-pressure gas in the gas tank 2 to be delivered to the cylinder 51 of the brake 5 through a pipeline. When it receives a brake release signal, the valve core switches to the brake release path, changing the air intake direction of the cylinder 51 and simultaneously venting the original gas in the cylinder 51. The input end of the reversing valve 4 is connected to the exhaust end of the gas tank 2 through a pipeline, and its output end is connected to the cylinder 51 through a pipeline. The output end includes a first air outlet and a second air outlet. The first air outlet is connected to the brake air port of the cylinder through a pipeline. By switching to the brake passage through the valve core, the high-pressure gas in the air tank 2 is input into the cylinder 51, pushing the piston rod downward to perform the braking operation. The second air outlet is connected to the brake release air port of the cylinder through a pipeline. By switching to the brake release passage through the valve core, the high-pressure gas enters the cylinder 51 in the reverse direction, pushing the piston rod upward to make the brake plate 56 drive the friction plate 57 to disengage from the end face of the flywheel 6, thus completing the brake release operation.

[0028] like Figures 1-2 As shown, the brake 5 is fixedly mounted on the body 3, and there are two sets of brakes, which are symmetrically arranged on both sides of the flywheel 6. The brake 5 includes a cylinder 51, a cylinder mounting plate 52, a brake bracket 53, a spring adjusting block 54, a brake spring 55, a brake plate 56, a friction plate 57, a spring preload screw 58, and a fixing bolt 59.

[0029] The brake bracket 53 has a U-shaped structure. Its bottom is fixed to the body 3 by fixing bolts 59. The top plate of the bracket has a through hole and an adjustment hole. The through hole is located at the center of the top plate and is used to pass through the piston rod. There are two sets of adjustment holes, which are symmetrically arranged on both sides of the through hole and are used to pass through the spring preload screws 58.

[0030] The cylinder mounting plate 52 is fixedly mounted on the top of the brake bracket 53, and the cylinder 51 is fixedly installed by bolt connection.

[0031] The cylinder 51 is fixed to the top of the cylinder mounting plate 52 by bolts. Its brake port is connected to the first outlet of the reversing valve 4 through a pipeline. High-pressure gas enters the rodless chamber of the cylinder through the brake port, pushing the piston rod downward and working with the brake spring 55 to drive the brake plate 56 for braking. The release port of the cylinder 51 is connected to the second outlet of the reversing valve 4 through a pipeline. High-pressure gas enters the rod chamber of the cylinder, pushing the piston rod upward and causing the brake plate to disengage from the flywheel, thus completing the release operation.

[0032] The spring preload screws 58 are symmetrically arranged on both sides of the cylinder 51. They are threadedly connected to the nuts fixed on the top of the cylinder mounting plate 52. The bottom end of the rod passes through the cylinder mounting plate 52 and the adjustment hole in sequence and is fixedly connected to the top of the spring adjustment block 54.

[0033] The spring adjusting block 54 is a cylindrical structure, and its top is fixedly connected to the spring preload screw 58. By turning the spring preload screw 58, the spring adjusting block 54 is driven to rise and then fall, adjusting the distance between the spring adjusting block 54 and the brake plate 56, thereby changing the compression of the brake spring 55 and indirectly adjusting the spring preload.

[0034] The brake spring 55 is sleeved on the spring adjusting block 54, and its two ends are respectively connected to the top of the brake bracket 53 and the brake plate 56. The brake spring 55 assists the cylinder 51 to enhance the braking force and ensure the braking effect. When braking, the spring force and the piston thrust are superimposed to enhance the downward driving force of the brake plate 56 and ensure that the friction plate 57 and the flywheel 6 are in close contact. When the brake is released, the brake spring 55 is compressed by the piston rod to store elastic potential energy and prepare for the next braking. At the same time, in the event of electrical control failure, emergency braking can be achieved by relying on the spring force to improve safety.

[0035] The top of the brake plate 56 is fixedly connected to the piston rod of the cylinder 51, and a friction plate 57 is fixedly provided at its bottom.

[0036] When the press brake device of this utility model is in operation, the booster pump 1 pressurizes ordinary gas to a high-pressure state that meets the braking requirements, and then delivers the high-pressure gas to the air tank 2 for storage to ensure stable air pressure and reserve power for subsequent braking. When the press needs to decelerate or stop, the system switches the reversing valve 4 to braking mode through electrical control, opening the passage from the air tank 2 to the forward air inlet of the cylinder 51. The high-pressure gas enters the cylinder 51 and generates thrust, which, together with the elastic force of the brake spring 55, pushes the brake plate 56 downward, causing the friction plate 57 to press tightly against the end face of the flywheel 6. The press decelerates or stops through frictional resistance. When the press needs to resume operation, the system controls the reversing valve 4 to switch to the brake release mode, allowing the high-pressure gas to enter the cylinder 51 in the opposite direction, pushing the piston to drive the brake plate 56 to return upward, causing the friction plate 57 to disengage from the flywheel 6. At the same time, the brake spring 55 is stretched and stored to prepare for the next braking. At this time, the flywheel 6 can rotate freely, and the press enters the normal working state.

[0037] This utility model's press braking device offers strong braking force, rapid response, and enhanced safety. By incorporating a booster pump and an air tank, the booster pump increases the working air pressure, which, combined with the elasticity of the brake spring, forms a dual driving force. Compared to traditional cylinder-type braking devices, the braking torque is significantly enhanced. Simultaneously, the large friction area of ​​the friction pads further increases frictional resistance, ensuring rapid deceleration or stopping of the press. Utilizing the rapid transmission characteristics of high-pressure gas and the sensitive control of the reversing valve, the braking / releasing actions switch quickly. Furthermore, the brake spring pre-stores energy during release, allowing for rapid release of elasticity during braking, avoiding the slippage of the friction pads and component damage due to frictional heat caused by the slow response of traditional cylinder-type devices, thus significantly improving operational safety.

[0038] This utility model's pressure braking device adopts a pneumatic system consisting of a booster pump, an air tank, and a cylinder. Unlike hydraulic cylinder devices, it does not require a complex and expensive hydraulic station, simplifying the overall structure and significantly reducing the initial purchase cost of the equipment. It also eliminates the easily leaking hydraulic pipelines and uses air pipe connections, significantly reducing the risk of leakage. At the same time, braking components such as friction plates are easy to replace, reducing the frequency of inspections and maintenance time. The long-term maintenance cost is far lower than that of hydraulic cylinder devices.

[0039] The pressure machine braking device of this utility model can directly adjust the preload of the brake spring through the spring adjusting block and the spring preload screw, thereby flexibly changing the braking force. It can adapt to the braking needs of different specifications of presses and different workloads without replacing the core components.

[0040] The pressure machine braking device of this utility model has pneumatic components that are efficiently connected through air pipes. The internal parts of the brake are reasonably arranged, the overall size is small, it does not occupy too much equipment space, and it is easy to integrate and install it on the press body.

[0041] The pressure machine braking device of this utility model has a brake spring, whose elasticity has a buffering and compensating effect, which can offset the influence of instantaneous air pressure fluctuations on braking force and maintain the stable contact pressure between the friction plate and the flywheel; at the same time, the electrical control and mechanical action are coordinated, and braking can be achieved at any position of the press stroke, further ensuring operational stability.

[0042] Those skilled in the art will readily understand that the above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A pressure mechanism braking device with a pressurization system, characterized in that, include: The booster pump (1) pressurizes the high-pressure gas and then transports it through a pipeline to the gas storage tank (2) for storage. A reversing valve (4) whose input end is connected to the gas storage tank (2) via a pipeline; The brake (5) is connected to the output end of the reversing valve (4) via a pipeline and is fixedly mounted on the body (3). It includes a cylinder (51), a brake bracket (53), a brake spring (55), a brake plate (56), and a friction plate (57). The cylinder (51) is fixedly mounted on the top of the brake bracket (53), and its piston rod passes through the top plate of the brake bracket (53) and is fixedly connected to the brake plate (56). One end of the brake spring (55) is connected to the brake plate (56), and the other end is connected to the top plate of the brake bracket (53). The friction plate (57) is fixedly mounted on the bottom of the brake plate (56).

2. The pressure mechanism braking device with a pressurization system according to claim 1, characterized in that, The output end of the reversing valve (4) includes a first air outlet and a second air outlet. The first air outlet is connected to the brake air outlet of the cylinder (51) via a pipeline. The second air outlet is connected to the brake release air outlet of the cylinder (51) via a pipeline.

3. A pressure mechanism braking device with a pressurization system according to any one of claims 1-2, characterized in that, The brake (5) is fixedly mounted on the fuselage (3), and there are two sets of brakes, which are symmetrically mounted on both sides of the flywheel (6).

4. A pressure mechanism braking device with a pressurization system according to any one of claims 1-2, characterized in that, The brake bracket (53) has a U-shaped structure. Its bottom is fixed to the body (3) by fixing bolts (59). The top plate of the bracket has a through hole and an adjustment hole. The through hole is located at the center of the top plate and is used to pass through the piston rod. The adjustment hole has two sets, which are symmetrically located on both sides of the through hole and are used to pass through the spring preload screw (58).

5. A pressure mechanism braking device with a pressurization system according to claim 4, characterized in that, The top of the brake bracket (53) is fixedly provided with a cylinder mounting plate (52), and the cylinder (51) is fixedly installed by bolt connection.

6. A pressure mechanism braking device with a pressurization system according to claim 5, characterized in that, The spring preload screws (58) are symmetrically arranged on both sides of the cylinder (51), and are threadedly connected to the nuts fixed on the top of the cylinder mounting plate (52). The bottom end of the rod passes through the cylinder mounting plate (52) and the adjustment hole in sequence, and is fixedly connected to the top of the spring adjustment block (54).

7. A pressure mechanism braking device with a pressurization system according to claim 6, characterized in that, The brake spring (55) is sleeved on the spring adjusting block (54), and its two ends are respectively connected to the top of the brake bracket (53) and the brake plate (56).

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