Master cylinder mold closing combination valve of rubber flat vulcanizing machine
By designing a rubber flat vulcanizer master cylinder mold-closing combination valve that simplifies installation and saves space, the problems of complexity, high cost and poor flexibility of the existing vulcanizer hydraulic control valve group are solved, and higher stability and better Low failure rate.
Patent Information
- Application Number
- CN202420270940.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-04
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-02-04
AI Technical Summary
The hydraulic control valve group of existing vulcanizers is complex, large in size and heavy in weight, resulting in high production cost and poor flexibility. It also has high temperature and poor heat dissipation during high-speed operation, which affects the opening and closing stability of the rubber flat vulcanizer and faults. The rate increases.
A rubber flat vulcanizer master cylinder mold-closing combination valve was designed, adopting an integrated forming structure of the valve body, simplifying the installation form, saving installation space through insertion holes in different directions, optimizing the oil circuit layout, reducing manufacturing costs .
It realizes simplified installation of the valve group, space saving and cost reduction, and at the same time improves the flexibility and stability of the hydraulic system, reduces the failure rate, and improves the opening and closing stability of the rubber flat vulcanizer.
Smart Images
Figure CN222457918U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a hydraulic control valve, in particular to a main cylinder mold clamping combined valve for a rubber plate vulcanizer. Background Art
[0002] A vulcanizer is a machine that vulcanizes various rubber and plastic products. It is composed of multiple groups of actions to complete its work. The main actions of the vulcanizer include: fast, slow, pressurized, pressure-maintaining, and fast return of the mold closing cylinder, fast rise and fast fall of the auxiliary fast cylinder, fast rise and fast fall of the mold pushing cylinder, fast rise and fast fall of the demoulding cylinder (one or more groups), and rise, fall, and pressure-maintaining actions of the vacuum cover cylinder, in which the vacuum cover cylinder is controlled by a reversing valve.
[0003] The hydraulic valve group of the control part of the existing vulcanizer is a plate-type hydraulic valve, which is separately installed on a relatively large integrated block. The installation form is complicated, the valve block is relatively large in size and weight, and the overall production cost is high. When the principle action is modified, the entire valve block must be modified. The flexibility is poor, and multiple general hydraulic components are assembled. There are also many process oil channels, large pipeline pressure loss, high hydraulic power loss, high temperature under high-speed operation, and unsatisfactory heat dissipation control, etc., which affect the stability of opening and closing the mold of the rubber flat vulcanizer and increase the failure rate. Utility Model Content
[0004] In view of the deficiencies in the prior art, the utility model provides a main cylinder clamping combined valve for a rubber plate vulcanizer, which eliminates the complex and bulky integrated block, not only greatly shortens the oil circuit, but also further reduces the manufacturing cost and rationalizes the installation position.
[0005] A main cylinder clamping combined valve for a rubber plate vulcanizing machine, comprising a valve body, a valve core hole, an oil inlet hole and an oil return hole perpendicular to the valve core hole, and a working oil port, a third plug-in surface and a third mounting surface are arranged on the right side of the valve body, a second plug-in surface and a first mounting surface are arranged on the left side of the valve body, a second plug-in hole is arranged on the second plug-in surface, a fourth plug-in hole is arranged on the third plug-in surface, a first electromagnet is arranged in the fourth plug-in hole, a second electromagnet is arranged in the fourth plug-in hole, a valve core hole is arranged between the first electromagnet and the second electromagnet;
[0006] The front side of the valve body is provided with a first shaped surface, the rear side of the valve body is provided with a second shaped surface, a third shaped surface and a fourth shaped surface, the second shaped surface is provided with a first working hole and a second working hole, the first working hole is connected to the second working oil passage, the second working hole is connected to the third working oil passage, the first working hole is connected to the oil inlet of the master cylinder, and the second working hole is connected to the oil control port of the full oil valve;
[0007] The top of the valve body is provided with a second mounting surface, the second mounting surface is provided with an oil inlet and an oil return port, the valve core hole is provided with an oil inlet channel, a first working oil port, a second working oil port and an oil return channel, the oil inlet is communicated with the oil inlet channel, the oil return port is communicated with the oil return channel, the first working oil port is communicated with the first working oil channel, the second working oil port is communicated with the third working oil channel, and the first working oil channel is communicated with the middle part of the second working oil channel;
[0008] A third insertion hole is provided on the first mounting surface, a second mounting hole is provided on the third mounting surface, a cartridge valve is provided in the third insertion hole, a fifth working oil passage is provided between the third insertion hole and the second mounting hole, a middle portion of the fifth working oil passage is connected to a root portion of the second working oil passage, and an end portion of the cartridge valve is connected to an end portion of the second working oil passage.
[0009] Optionally, the third special-shaped surface and the fourth special-shaped surface are arc-shaped structural surfaces, and the connections between the first special-shaped surface, the second special-shaped surface, the first plug-in surface, the first mounting surface and the third mounting surface are all arc-shaped structural surfaces.
[0010] Optionally, a first insertion surface is provided at the bottom of the valve body, a first insertion hole is opened on the first insertion surface, a one-way valve is inserted in the first insertion hole, the one-way valve is connected to the first working oil channel, and the middle part of the one-way valve is connected to the middle part of the second oil channel.
[0011] Optionally, a first mounting hole is further provided on the first mounting surface, a third mounting hole is provided on the third mounting surface, a fourth working oil channel is provided between the first mounting hole and the third mounting hole, a middle section of the fourth working oil channel is connected to a middle section of the second working oil channel, and a damper is provided in the fourth working oil channel.
[0012] Optionally, the cartridge valve is an electromagnetic ball valve.
[0013] Optionally, the cartridge valve is a leak-free valve.
[0014] Optionally, a mounting frame is provided at the bottom of the valve body.
[0015] The utility model has the following advantages:
[0016] Since the valve body is an integrated structure, it is only necessary to insert the cartridge valve into the third cartridge valve, the first electromagnet into the fourth cartridge hole, the second electromagnet into the second cartridge hole, and the one-way valve into the first cartridge hole, which simplifies the installation form. Since the cartridge valve, the first electromagnet, the second electromagnet and the one-way valve are large in size, the opening directions of the first cartridge hole, the second cartridge hole, the third cartridge hole and the fourth cartridge hole are different, which saves installation space. The openings of the oil inlet and the oil return port are downward, and the first working hole and the second working hole for connecting the master cylinder are backward. The third mounting hole for connecting the pressure gauge and the second mounting hole for connecting the pressure relay are both right-facing openings. When connecting an external load, there will be no position conflict with other parts, and it is easier to connect the pipeline. The overall position layout is reasonable, saving installation space. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of the structure of the utility model;
[0018] Figure 2 It is a structural schematic diagram of the valve body in the utility model;
[0019] Figure 3 This is a schematic structural diagram of the valve body in the utility model from another angle;
[0020] Figure 4 It is a right side view of the valve body in the utility model;
[0021] Figure 5 It is a rear view of the valve body in the utility model;
[0022] Figure 6 for Figure 4 Sectional view at A in the middle;
[0023] Figure 7 for Figure 5 Sectional view at B in the middle;
[0024] Figure 8 for Figure 4 Sectional view at C in the middle;
[0025] Fig. 9 for Figure 5 Sectional view at D in the middle;
[0026] Fig.10 for Figure 4 Sectional view at point E;
[0027] Fig.11 It is a structural schematic diagram of the utility model from another angle;
[0028] Fig.12 It is a rear view of the structure of the utility model;
[0029] Fig.13 It is a left view of the structure of the utility model;
[0030] Fig.14 for Fig.13 Sectional view at F in the middle;
[0031] Fig.15 for Fig.12 Sectional view at G in the middle;
[0032] Fig.16 for Fig.12 Sectional view at H in the middle;
[0033] Fig.17 for Fig.13 A cross-sectional view at position I in the middle;
[0034] Fig.18 for Fig.13 Sectional view at J in the middle;
[0035] Fig.19 It is the principle diagram of the utility model.
[0036] In the figure: 1, valve body; 101, first profiled surface; 102, first plug-in surface; 1021, first plug-in hole; 103, second plug-in surface; 1031, second plug-in hole; 104, first mounting surface; 1041, third plug-in hole; 1042, first mounting hole; 105, second mounting surface; 1051, oil return port; 1052, oil inlet port; 106, third plug-in surface; 1061, fourth plug-in hole; 1062, oil return channel; 1063, oil inlet channel; 1064, first working oil port; 1065, second working oil port; 1066 , valve core; 107, third mounting surface; 1071, second mounting hole; 1072, third mounting hole; 108, second special-shaped surface; 1081, first working hole; 1082, second working hole; 109, third special-shaped surface; 110, fourth special-shaped surface; 111, first working oil channel; 112, second working oil channel; 113, third working oil channel; 114, fourth working oil channel; 115, fifth working oil channel; 2, first electromagnet; 3, cartridge valve; 4, mounting bracket; 5, second electromagnet; 6, one-way valve; 7, damping. DETAILED DESCRIPTION
[0037] Example
[0038] like Figure 1-Figure 3 , Fig.11As shown, a main cylinder mold combination valve for a rubber flat vulcanizer includes a valve body 1, a valve core hole is opened in the valve body 1, an oil inlet channel 1063 and an oil return channel 1062 perpendicular to the valve core hole, and a working oil port, a third plug-in surface 106 and a third mounting surface 107 are arranged on the right side of the valve body 1, a second plug-in surface 103 and a first mounting surface 104 are arranged on the left side of the valve body 1, a second plug-in hole 1031 is opened on the second plug-in surface 103, a fourth plug-in hole 1061 is opened on the third plug-in surface 106, a first electromagnet 2 is arranged in the fourth plug-in hole 1061, a second electromagnet 5 is arranged in the fourth plug-in hole 1061, and a valve core hole is opened between the first electromagnet 2 and the second electromagnet 5.
[0039] like Figure 3 , Figure 5 , Figure 8 , Fig. 9 and Fig.16 As shown, a first shaped surface 101 is provided on the front side of the valve body 1, a second shaped surface 108, a third shaped surface 109 and a fourth shaped surface 110 are provided on the rear side of the valve body 1, a first working hole 1081 and a second working hole 1082 are opened on the second shaped surface 108, the first working hole 1081 is connected to the second working oil channel 112, the second working hole 1082 is connected to the third working oil channel 113, the first working hole 1081 is connected to the oil inlet of the master cylinder, and the second working hole 1082 is connected to the full oil valve control oil port.
[0040] like Figure 3 , Figure 6-Figure 8 , Fig.10 , Fig.14 and Fig.18 As shown, a second mounting surface 105 is provided on the top of the valve body 1, an oil inlet 1052 and an oil return port 1051 are provided on the second mounting surface 105, an oil inlet channel 1063, a first working oil port 1064, a second working oil port 1065 and an oil return channel 1062 are provided in the valve core hole, the oil inlet 1052 is connected with the oil inlet channel 1063, the oil return port 1051 is connected with the oil return channel 1062, the first working oil port 1064 is connected with the first working oil channel 111, the second working oil port 1065 is connected with the third working oil channel 113 through a process hole, and the first working oil channel 111 is connected with the middle part of the second working oil channel 112.
[0041] like Figure 2-Figure 4 , Figure 8 , Fig.17As shown, the first mounting surface 104 is provided with a third insertion hole 1041 and a first mounting hole 1042, the third mounting surface 107 is provided with a second mounting hole 1071 and a third mounting hole 1072, the third insertion hole 1041 is provided with a cartridge valve 3, a fifth working oil passage 115 is provided between the third insertion hole 1041 and the second mounting hole 1071, the middle portion of the fifth working oil passage 115 is communicated with the root portion of the second working oil passage 112, the end portion of the cartridge valve 3 is communicated with the end portion of the second working oil passage 112, a fourth working oil passage 114 is provided between the first mounting hole 1042 and the third mounting hole 1072, the middle section of the fourth working oil passage 114 is communicated with the middle section of the second working oil passage 112, and a damper 7 is provided in the fourth working oil passage 114.
[0042] like Figure 2 , Figure 3 As shown, the third profiled surface 109 and the fourth profiled surface 110 are arcuate structural surfaces, and the connections among the first profiled surface 101, the second profiled surface 108, the first plug-in surface 102, the first mounting surface 104 and the third mounting surface 107 are all arcuate structural surfaces.
[0043] like Figure 2 , Figure 7 and Fig.15 As shown, a first insertion surface 102 is provided at the bottom of the valve body 1, a first insertion hole 1021 is opened on the first insertion surface 102, a one-way valve 6 is inserted in the first insertion hole 1021, the one-way valve 6 is connected to the first working oil channel 111, and the middle part of the one-way valve 6 is connected to the middle part of the second working oil channel 112.
[0044] Through the above connection, when installing the combination valve, since the valve body 1 is an integrated structure, it is only necessary to insert the cartridge valve 3 into the third insertion hole 1041, insert the first electromagnet 2 into the fourth insertion hole 1061, insert the second electromagnet 5 into the second insertion hole 1031, and insert the check valve 6 into the first insertion hole 1021, which simplifies the installation form. In addition, since the cartridge valve 3, the first electromagnet 2, the second electromagnet 5 and the check valve 6 have a large volume, the first insertion hole 1021, the second insertion hole 1031, and the third insertion hole 1061 are connected to each other. The opening directions of the insertion hole 1041 and the fourth insertion hole 1061 are different, which saves installation space. The oil inlet 1052 and the oil return port 1051 are opened upward, and the first working hole 1081 and the second working hole 1082 for connecting the master cylinder are opened backward. The third installation hole 1072 for connecting the pressure gauge and the second installation hole 1071 for connecting the pressure relay are both opened to the right. When connecting an external load, there will be no position conflict with other parts, and it is easier to connect the pipeline. The overall position layout is reasonable, saving installation space.
[0045] Among them, the cartridge valve 3 is an electromagnetic ball valve.
[0046] Furthermore, the cartridge valve 3 is a leak-free valve.
[0047] Based on the above implementation, in a preferred implementation, as Figure 1 , Fig.11 and Fig.12 As shown, a mounting frame 4 is provided at the bottom of the valve body 1, and threaded holes are provided on the mounting frame 4, through which the combination valve is fixedly installed.
[0048] according to Fig.19 The principle shown in the figure is that the first working hole 1081 is connected to the oil inlet of the master cylinder, and the second working hole 1082 is connected to the oil control port of the full oil valve. When the valve core 1066 is in the middle position, as shown in FIG. Fig.14 , Fig.18 As shown, the pump is not unloaded, the oil inlet channel 1063 is closed, and the oil return channel 1062 is connected to the first working oil channel 111 and the third working oil channel 113.
[0049] When the master cylinder needs to rise, the first solenoid 2 of the reversing valve is energized, the valve core 1066 moves to the left, and the oil return channel 1062 is connected to the second working oil port 1065 through the valve core step and then to the third working oil channel 113 and the second working hole 1082, and the second working hole 1082 is connected to the full oil valve control oil port, so that the full oil valve controls the oil to return to the oil tank through this channel and unload. At the same time, the oil inlet channel 1063 is connected to the first working oil port 1064 through the valve core step, and then to the first working oil channel 111. The working oil enters the oil inlet channel 1063 through the oil inlet port 1052 and then enters the first working oil channel 111 through this channel, and then opens the one-way valve and enters the bottom of the cylinder through the first working oil channel 1081. When the two fast cylinders extend quickly, the main cylinder piston also extends quickly under the pull of the workbench, negative pressure is generated in the main cylinder, the full oil valve opens forward, and the oil in the auxiliary oil tank is replenished into the main cylinder through the full oil valve. The oil entering the full oil valve and the oil entering the first working oil channel 1081 jointly push the cylinder piston rod to extend. After the main cylinder rises into place, the full oil valve is closed, and the oil entering the first working oil channel 1081 is supplied and pressurized separately, and the equipment starts working.
[0050] When the master cylinder needs to descend, the electromagnet of the electromagnetic ball valve 3 is energized first, and the high-pressure oil in the lower chamber of the oil cylinder enters the second working oil channel 112 through the first working hole 1081, and then enters the fifth working channel 115 through the opened electromagnetic ball valve 3, and then returns to the oil tank through the second mounting hole 1071, so that the high pressure in the oil cylinder is released. Then the second electromagnet 5 of the reversing valve is also energized, and at this time the valve core 1066 moves to the right, and the return oil channel 1062 is connected to the first working oil port 1064 through the valve core step and then to the first working oil channel 111, so that the oil in the first working oil channel 111 enters the return oil port 1051 from the return oil channel 1062 through this channel and directly returns to the oil tank, while the first working oil channel 111 is at the inlet of the one-way valve 6. Since there is always pressure in the inner chamber of the oil cylinder, the outlet pressure of the one-way valve 6 is greater than the inlet pressure, and the one-way valve 6 is in a closed state. At the same time, the oil inlet channel 1063 is connected to the second working oil port 1065 through the valve core step and then to the third working oil channel 113. The high-pressure oil enters this channel from the oil inlet port 1052 and enters the full oil valve control oil port through the third working oil channel 113 to open the full oil valve. When the two fast cylinders retract, the master cylinder retracts quickly under the drive of the two fast cylinders, and the oil in the oil chamber of the master cylinder returns to the auxiliary oil tank through the already opened full oil valve.
Claims
1. A main cylinder clamping combination valve for a rubber plate vulcanizing machine, comprising a valve body (1), wherein the valve body (1) is provided with a valve core hole, an oil inlet channel (1063) perpendicular to the valve core hole, an oil return channel (1062), and a working oil port, wherein: The right side of the valve body (1) is provided with a third plug-in surface (106) and a third mounting surface (107); the left side of the valve body (1) is provided with a second plug-in surface (103) and a first mounting surface (104); the second plug-in surface (103) is provided with a second plug-in hole (1031); the third plug-in surface (106) is provided with a fourth plug-in hole (1061); a first electromagnet (2) is provided in the fourth plug-in hole (1061); a second electromagnet (5) is provided in the fourth plug-in hole (1061); a valve core hole is provided between the first electromagnet (2) and the second electromagnet (5); The valve body (1) is provided with a first shaped surface (101) on the front side, and the valve body (1) is provided with a second shaped surface (108), a third shaped surface (109) and a fourth shaped surface (110) on the rear side. The second shaped surface (108) is provided with a first working hole (1081) and a second working hole (1082). The first working hole (1081) is connected to a second working oil passage (112), and the second working hole (1082) is connected to a third working oil passage (113). The first working hole (1081) is connected to an oil inlet of a master cylinder, and the second working hole (1082) is connected to an oil control port of a full oil valve. The top of the valve body (1) is provided with a second mounting surface (105), the second mounting surface (105) is provided with an oil inlet (1052) and an oil return port (1051), the valve core hole is provided with an oil inlet channel (1063), a first working oil port (1064), a second working oil port (1065) and an oil return channel (1062), the oil inlet (1052) is communicated with the oil inlet channel (1063), the oil return port (1051) is communicated with the oil return channel (1062), the first working oil port (1064) is communicated with the first working oil channel (111), the second working oil port (1065) is communicated with the third working oil channel (113) through a process hole, and the first working oil channel (111) is communicated with the middle part of the second working oil channel (112); A third insertion hole (1041) is provided on the first mounting surface (104), a second mounting hole (1071) is provided on the third mounting surface (107), a cartridge valve (3) is provided in the third insertion hole (1041), a fifth working oil passage (115) is provided between the third insertion hole (1041) and the second mounting hole (1071), a middle portion of the fifth working oil passage (115) is connected to an end portion of the second working oil passage (112), and an end portion of the cartridge valve (3) is connected to a root portion of the second working oil passage (112).
2. The main cylinder mold clamping combined valve of a rubber plate vulcanizing machine according to claim 1, characterized in that: The third special-shaped surface (109) and the fourth special-shaped surface (110) are arc-shaped structural surfaces, and the connections between the first special-shaped surface (101), the second special-shaped surface (108), the first plug-in surface (102), the first installation surface (104) and the third installation surface (107) are all arc-shaped structural surfaces.
3. The main cylinder mold clamping combined valve of a rubber plate vulcanizing machine according to claim 1, characterized in that: The bottom of the valve body (1) is provided with a first insertion surface (102), the first insertion surface (102) is provided with a first insertion hole (1021), a one-way valve (6) is inserted in the first insertion hole (1021), the one-way valve (6) is connected to the first working oil channel (111), and the middle part of the one-way valve (6) is connected to the middle part of the second working oil channel (112).
4. A rubber plate vulcanizing machine main cylinder mold clamping combined valve according to claim 1, characterized in that: The first mounting surface (104) is also provided with a first mounting hole (1042), the third mounting surface (107) is provided with a third mounting hole (1072), a fourth working oil passage (114) is provided between the first mounting hole (1042) and the third mounting hole (1072), a middle section of the fourth working oil passage (114) is connected to a middle section of the second working oil passage (112), and a damper (7) is provided in the fourth working oil passage (114).
5. The main cylinder mold clamping combined valve of a rubber plate vulcanizing machine according to claim 1, characterized in that: The cartridge valve (3) is an electromagnetic ball valve.
6. The main cylinder mold clamping combined valve of a rubber plate vulcanizing machine according to claim 4, characterized in that: The cartridge valve (3) is a leak-free valve.
7. The main cylinder mold clamping combined valve of a rubber plate vulcanizing machine according to claim 1, characterized in that: A mounting frame (4) is provided at the bottom of the valve body (1).