ball press

Abstract

The utility model belongs to valve manufacturing equipment field discloses a kind of ball pressers. Including frame, frame bottom is equipped with electric cabinet, electric cabinet electric control ball presser each component, electric cabinet side is equipped with pressure regulating valve;Electric cabinet top is equipped with workbench, workbench is equipped with rack, rack lower part is equipped with work area, work area is equipped with press tool air cylinder, press tool air cylinder is attached to tire membrane, rack upper part is equipped with punch mounting seat, punch mounting seat bottom is equipped with connecting rod, connecting rod lower part is covered with outer sleeve, connecting rod bottom is equipped with top sleeve, press head in proper order, top sleeve side surface is equipped with feeding port, punch mounting seat top is equipped with gas-liquid intensifier cylinder.The utility model directly installs valve plate into tool, full-automatic press mounting, will not be destroyed to valve, surface scratch etc., simplify test procedure simultaneously, shorten test time, improve work efficiency, have safety protection.

Description

Technical Field

[0001] This utility model belongs to the field of valve manufacturing equipment, and specifically relates to a briquetting machine. Background Technology

[0002] In valve manufacturing, ball sealing is a critical process, and one of its core assembly steps is to precisely press the sealing ball into the designated seat ring inside the valve body. The quality of this process directly determines the sealing performance, operating torque, and service life. Currently, in many production scenarios, especially in the assembly of ball valves in small and medium-sized enterprises or with specific structures, the traditional manual hammering method is still widely used.

[0003] The specific operating procedure of this traditional method is as follows: First, fix the valve body on a simple bracket. Then, the operator places the sealing ball at the valve body inlet, uses a metal top block that matches the ball surface to hold the sealing ball in place, and finally uses a hammer to repeatedly strike the top block to force the sealing ball into the valve body using the impact force.

[0004] However, this assembly process, which relies on manual labor and impact, has a series of inherent and difficult-to-overcome drawbacks: 1. Extremely poor control precision in pressing depth and coaxiality: Relying entirely on the operator's experience and feel, it is impossible to accurately control the final pressing depth of the sealing ball. Furthermore, the direction of the hammering force is difficult to ensure is consistently aligned with the valve body's centerline, easily causing the sealing ball to deviate during pressing and become misaligned with the valve body seat. This can lead to problems such as poor sealing after valve assembly, increased opening and closing torque, and even jamming.

[0005] 2. Uneven stress distribution poses a risk of damage: The impact force generated by hammering is instantaneous and localized, and the magnitude and direction of the force are random. This uneven stress distribution can easily cause localized stress concentration on the surface of the sealing ball or the precision seat ring of the valve body, leading to scratches or indentations on the ball surface, or plastic deformation or micro-cracks in the seat ring due to overload. These internal damages pose a hidden danger to the long-term reliable operation of the valve.

[0006] 3. Low operational efficiency and inconsistency: Manual operation is slow, and the pressing quality of each sealing ball fluctuates greatly, failing to meet the high requirements of efficiency and product consistency in modern mass production. Poor batch product quality stability increases the cost of subsequent testing and rework.

[0007] 4. Lack of safety protection and process monitoring: There is a safety hazard of tool slippage and injury during the hammering process. At the same time, the process is completely "open-loop" and it is impossible to monitor and provide feedback on the force and displacement during the pressing process in real time. Once an abnormality occurs (such as the ball not being placed correctly or the presence of foreign objects inside), the machine cannot be stopped in time, which will inevitably lead to product scrap.

[0008] Therefore, the existing sealing ball press-fitting method has become a bottleneck for improving ball valve product quality and production automation. The industry urgently needs an automated press-fitting device that can achieve precise alignment, constant and controllable force application, process monitoring functions, and integrated safety protection to fundamentally solve the above problems. Utility Model Content

[0009] To overcome the shortcomings of existing technologies, this utility model provides a briquetting machine that directly installs the valve plate into the tooling, performs fully automatic pressing, and will not damage the valve or cause surface scratches. At the same time, it simplifies the testing process, shortens the testing time, improves work efficiency, and has safety protection.

[0010] The above-mentioned objective of this utility model is achieved through the following technical solution: a briquetting machine, the structure of which includes: The frame has an electrical control box at its bottom, which controls all components of the briquetting machine. A pressure regulating valve is located on one side of the electrical control box. A workbench is mounted on top of the electrical control box, and a frame is mounted on the workbench. A working area is located under the frame, and a pressing cylinder is mounted on the working area. The pressing cylinder is equipped with a diaphragm. A punch mounting seat is mounted on the upper part of the frame, and a connecting rod is mounted at the bottom of the punch mounting seat. The lower part of the connecting rod is covered with an outer sleeve. A top sleeve and a pressing head are sequentially located at the bottom of the connecting rod. A feeding port is opened on the side of the top sleeve, and a gas-liquid booster cylinder is mounted on the top of the punch mounting seat.

[0011] Furthermore, the workbench is equipped with a start button and an emergency stop button that can control the briquetting machine, and the start button and emergency stop button are electrically connected to the control box.

[0012] Furthermore, the working area is also equipped with a photoelectric sensor to identify whether the valve body is in the correct position.

[0013] Furthermore, the punch mounting base is provided with a floating joint, a connecting flange, and a connecting seat in sequence from top to bottom. The floating joint is connected to the gas-liquid booster cylinder, and the connecting seat is connected to the connecting rod.

[0014] In a further preferred embodiment of this invention, the punch mounting base is also equipped with a position sensor to synchronously acquire the position information of the connecting rod.

[0015] Furthermore, the briquetting machine is also equipped with a screen containing a reset button and a start button. The screen is electrically connected to the electrical control box to synchronously control the briquetting machine.

[0016] Furthermore, the frame is equipped with a grating.

[0017] The advantages of this utility model compared with the prior art are: this utility model directly installs the valve plate into the tooling, and the fully automatic pressing will not damage the valve or cause surface scratches. At the same time, it simplifies the testing process, shortens the testing time, improves work efficiency, and has safety protection, avoiding the problems of easy damage to the valve body and uneven force on the ball caused by manual hammer pressing. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Figure 1 This is a schematic diagram of the structure of the briquetting machine of this utility model; Figure 2 This is a schematic diagram of the frame structure of the briquetting machine of this utility model; Figure 3 This is a partial sectional view of the punch mounting base of this utility model.

[0019] In the diagram: 1. Frame; 2. Electrical control box; 3. Pressure regulating valve; 4. Frame; 5. Workbench; 6. Working area; 7. Press cylinder; 8. Membrane; 9. Punch mounting seat; 10. Air-hydraulic booster cylinder; 11. Connecting rod; 12. Outer sleeve; 13. Feed port; 14. Top sleeve; 15. Press head; 16. Floating joint; 17. Connecting flange; 18. Connecting seat; 19. Position sensor; 20. Photoelectric sensor; 21. Emergency stop button; 22. Start button; 23. Screen; 24. Grating. Detailed Implementation

[0020] The present invention is described in detail below through specific embodiments, but this does not limit the scope of protection of the present invention. Unless otherwise specified, the experimental methods used in the present invention are all conventional methods, and the experimental equipment, materials, reagents, etc. used can all be obtained commercially.

[0021] Example 1 The briquetting machine has the following structure: The frame has an electrical control box at its bottom, which controls all components of the briquetting machine. A pressure regulating valve is located on one side of the electrical control box. A workbench is mounted on top of the electrical control box, and a frame is mounted on the workbench. A working area is located under the frame, and a pressing cylinder is mounted on the working area. The pressing cylinder is equipped with a diaphragm. A punch mounting seat is mounted on the upper part of the frame, and a connecting rod is mounted at the bottom of the punch mounting seat. The lower part of the connecting rod is covered with an outer sleeve. A top sleeve and a pressing head are sequentially located at the bottom of the connecting rod. A feeding port is opened on the side of the top sleeve, and a gas-liquid booster cylinder is mounted on the top of the punch mounting seat.

[0022] The workbench is equipped with a start button and an emergency stop button that can control the briquetting machine. The start button and emergency stop button are electrically connected to the control box.

[0023] The working area is also equipped with a photoelectric sensor to identify whether the valve body is in the correct position.

[0024] The punch mounting base is provided with a floating joint, a connecting flange, and a connecting seat from top to bottom. The floating joint is floatingly connected to the gas-liquid booster cylinder, and the connecting seat is connected to the connecting rod.

[0025] The punch mounting base is also equipped with a position sensor to synchronously acquire the position information of the connecting rod.

[0026] The briquetting machine is also equipped with a screen containing a reset button and a start button. The screen is electrically connected to the electrical control box to synchronously control the briquetting machine.

[0027] The gas-liquid booster cylinder provides the pressure for the briquetting machine to press the briquetting balls, and is mounted on the punch mounting seat with four screws.

[0028] The punch mounting base is screwed onto the frame, providing a mounting position for the briquetting system.

[0029] The screen is mounted on the electrical box on the frame. It allows adjustment of the PLC's internal settings and has a reset button for resetting the machine when an error occurs.

[0030] The feeding port is installed on the top sleeve and has threads.

[0031] The top sleeve is installed inside the outer sleeve and is guided by a bushing. Externally, there are set screws for limiting and guiding.

[0032] The grating is bolted to the frame.

[0033] The electrical control box is welded to the bottom of the workbench. The pressure regulating valve can adjust the cylinder pressure. It is mounted on the frame and has a threaded connection.

[0034] The start button controls the activation of the action. Both left and right buttons must be pressed simultaneously to activate the action. It is installed on the workbench.

[0035] The emergency stop button stops the action.

[0036] The clamping cylinder controls the tightening or loosening of the diaphragm, and is threadedly connected to the working area of ​​the frame.

[0037] The membrane contacts the valve body, controlling the tightening or loosening of the valve body, and is threadedly connected to the press cylinder.

[0038] The photoelectric switch identifies whether the valve body is correct and is connected to the working area by a thread.

[0039] The floating joint uses a T-shaped iron to connect to the pneumatic-hydraulic booster cylinder, and is threaded to the connecting flange, moving together with the pneumatic-hydraulic booster cylinder. The connecting flange is threaded to the floating joint and the connecting seat, and moves together with the gas-liquid booster cylinder.

[0040] The connecting seat is threadedly connected to the connecting flange and the connecting rod, and moves together with the gas-liquid booster cylinder.

[0041] The outer casing is connected to the connecting rod using snap rings and smooth pins, and moves together with it.

[0042] The pressure head is locked to the connecting rod with an upward-sloping set screw, pushing the ball downward.

[0043] The position sensor is locked to the punch mounting base with a lock nut.

[0044] Working method and principle of the briquetting machine: After placing the valve in the tooling working area, insert the small ball into the discharge port, press the start button, the clamping cylinder automatically opens, pushing the diaphragm to clamp the workpiece, the pneumatic-hydraulic booster cylinder starts, pushes downward, and stops after the top sleeve contacts the valve body, the pressure head descends, pushing the small ball onto the valve body, and the pneumatic-hydraulic booster cylinder applies force to press the small ball into the valve body. After two seconds, the pneumatic-hydraulic booster cylinder returns, the clamp returns, and the valve body can be removed.

[0045] The equipment features a light grating and a two-hand start system for safety. It is PLC-controlled and can be adapted to different products by changing the film template.

[0046] The pneumatic-hydraulic booster cylinder drives the floating joint, which is bolted together with the connecting flange. The connecting flange drives the connecting seat, which in turn drives the connecting rod. The connecting rod connects to the pressure head, and the oil-free bushing is installed inside the outer sleeve.

[0047] The outer sleeve can slide up and down on the connecting rod to extend the pressure head. When the gas-liquid booster cylinder is in its original position, the pressure head is above the feeding port on the outer sleeve. After the small ball is put into the feeding port, the small ball is attracted to the magnet on the outer sleeve. When it is pressed down, the outer sleeve contacts the valve body and stops. The pressure head pushes the small ball to continue downward until it is pressed into the valve body.

[0048] The embodiments described above are merely preferred embodiments of this utility model, and not all feasible embodiments of this utility model. For those skilled in the art, any obvious modifications made without departing from the principles and spirit of this utility model should be considered to be included within the scope of protection of the claims of this utility model.

Claims

1. A briquetting machine, characterized in that, The structure includes: The frame has an electrical control box at its bottom, which controls all components of the briquetting machine. A pressure regulating valve is located on one side of the electrical control box. A workbench is mounted on top of the electrical control box, and a frame is mounted on the workbench. A working area is located under the frame, and a pressing cylinder is mounted on the working area. The pressing cylinder is equipped with a diaphragm. A punch mounting seat is mounted on the upper part of the frame, and a connecting rod is mounted at the bottom of the punch mounting seat. The lower part of the connecting rod is covered with an outer sleeve. A top sleeve and a pressing head are sequentially located at the bottom of the connecting rod. A feeding port is opened on the side of the top sleeve, and a gas-liquid booster cylinder is mounted on the top of the punch mounting seat.

2. The briquetting machine according to claim 1, characterized in that, The workbench is equipped with a start button and an emergency stop button that can control the briquetting machine. The start button and emergency stop button are electrically connected to the control box.

3. The briquetting machine according to claim 1, characterized in that, The working area is also equipped with a photoelectric sensor to identify whether the valve body is in the correct position.

4. The briquetting machine according to claim 1, characterized in that, The punch mounting base is provided with a floating joint, a connecting flange, and a connecting seat in sequence from top to bottom. The floating joint is connected to the gas-liquid booster cylinder, and the connecting seat is connected to the connecting rod.

5. The briquetting machine according to claim 1, characterized in that, The punch mounting base is also equipped with a position sensor to synchronously acquire the position information of the connecting rod.

6. The briquetting machine according to claim 1, characterized in that, The briquetting machine is also equipped with a screen containing a reset button and a start button. The screen is electrically connected to the electrical control box to synchronously control the briquetting machine.

7. The briquetting machine according to claim 1, characterized in that, The frame is equipped with a grating.

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