Mold closing combination valve for vacuum cover of rubber flat vulcanizing machine

Abstract

The utility model relates to a hydraulic control valve, in particular to a vacuum cover mold closing combination valve of a rubber flat vulcanizing machine, which comprises a valve body, a valve core hole, an oil inlet hole channel, an oil return hole channel and a working oil port are arranged in the valve body, and the valve body comprises a first functional part and a second functional part. A second plug-in mounting surface and a third plug-in mounting surface are arranged on the left side and the right side of the first function part respectively, arc-shaped surfaces are arranged on the front side and the rear side of the first function part, a second plug-in mounting hole is formed in the second plug-in mounting surface, a third plug-in mounting hole is formed in the third plug-in mounting surface, and electromagnets are plugged in the second plug-in mounting hole and the third plug-in mounting hole. The opening directions of the first plug-in mounting hole and the second plug-in mounting hole are different, the mounting space is saved, the openings of the oil inlet and the oil return port face upwards, the first outer oil port, the second outer oil port, the third outer oil port and the fourth outer oil port are left-right openings respectively, position conflicts with other parts cannot be generated when an external load is connected, pipeline connection is easier, and the service life is prolonged. The overall position layout is reasonable, and the installation space is saved.

Description

Technical Field

[0001] The utility model relates to a hydraulic control valve, in particular to a vacuum cover mold clamping combined valve for a rubber flat plate vulcanizing machine. 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, the overall production cost is high, and the entire valve block must be modified when the principle action is modified, which has poor flexibility. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a rubber plate vulcanizer vacuum cover mold clamping combination valve. The use of the rubber plate vulcanizer vacuum cover mold clamping combination valve eliminates the complex and bulky integrated block, which not only greatly shortens the oil circuit, but also further reduces the manufacturing cost and rationalizes the installation position.

[0005] A rubber plate vulcanizing machine vacuum cover mold combination valve comprises a valve body, a valve core hole is provided in the valve body, an oil inlet hole and an oil return hole perpendicular to the valve core hole, and a working oil port, the valve body comprises a first functional part and a second functional part, a second plug-in surface and a third plug-in surface are respectively provided on the left and right sides of the first functional part, an arc surface is provided on the front and rear sides of the first functional part, a second plug-in hole is provided on the second plug-in surface, a third plug-in hole is provided on the third plug-in surface, a first electromagnet is plugged on the second plug-in hole, a second electromagnet is plugged on the third plug-in hole, a valve core hole is provided between the first electromagnet and the second electromagnet, a second mounting surface is provided on the top of the first functional part, an oil inlet and an oil return port are provided on the second mounting surface, the oil inlet is communicated with the oil inlet hole, and the oil return port is communicated with the oil return hole;

[0006] The valve core hole is provided with an oil inlet channel, a first working chamber, a second working chamber and an oil return channel;

[0007] A first plug-in surface is provided on the front side of the second functional part, a first plug-in hole is provided on the first plug-in surface, a cartridge valve is inserted in the first plug-in hole, a first mounting surface and a third mounting surface are provided on the left and right sides of the second functional part, a first external working oil passage and a second external working oil passage are provided through the first mounting surface and the third mounting surface, a first external oil port and a third external oil port are provided at both ends of the first external working oil passage, a second external oil port and a fourth external oil port are provided at both ends of the second external working oil passage, the first external oil port and the second external oil port are provided on the first mounting surface, and the third external oil port and the fourth external oil port are provided on the third mounting surface;

[0008] The first external working oil passage is connected to the middle end of the cartridge valve, the axis of the cartridge valve is arranged perpendicularly to the axis of the first external working oil passage, the end of the cartridge valve is connected to the second working oil passage, the second external working oil passage is connected to the first working oil passage, the first working oil passage and the second working oil passage are vertically arranged in the valve body, the first working oil passage is connected to the first working chamber, the second working oil passage is connected to the second working chamber, and the first working oil passage and the second working oil passage pass through to the bottom of the valve body.

[0009] Optionally, the first insertion surface and the rear side surface of the second functional portion are both arc-shaped structural surfaces.

[0010] Optionally, the oil return channel includes a first oil return chamber and a second oil return chamber, the first oil return chamber and the second oil return chamber merge into an oil return channel, a first working chamber and a second working chamber are arranged between the first oil return chamber and the second oil return chamber, and an oil inlet channel is arranged between the first working chamber and the second working chamber.

[0011] Optionally, the cartridge valve is a solenoid reversing valve.

[0012] Optionally, the cartridge valve is a leak-free solenoid ball valve.

[0013] Optionally, a mounting frame is provided at the bottom of the valve body. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a structural schematic diagram of the valve body in the utility model;

[0016] Figure 3 It is a right side view of the valve body in the utility model;

[0017] Figure 4 It is a left view of the valve body in the utility model;

[0018] Figure 5 It is a bottom view of the valve body in the utility model;

[0019] Figure 6 for Figure 3Sectional view at A in the middle;

[0020] Figure 7 for Figure 3 Sectional view at B in the middle;

[0021] Figure 8 for Figure 3 Sectional view at C in the middle;

[0022] Fig. 9 It is a right side view of the utility model;

[0023] Fig.10 for Fig. 9 Sectional view at D in the middle;

[0024] Fig.11 for Fig. 9 Sectional view at point E;

[0025] Fig.12 for Fig. 9 Sectional view at F in the middle;

[0026] Fig.13 This is the principle diagram of the utility model;.

[0027] In the figure: 1, valve body; 11, first functional part; 12, second functional part; 101, first mounting surface; 102, first plug-in surface; 103, second mounting surface; 104, second plug-in surface; 105, first plug-in hole; 106, oil inlet; 107, oil return port; 108, second plug-in hole; 109, first external oil port; 110, second external oil port; 111, first process hole; 112, first working oil passage; 113, second working oil passage; 114, oil inlet hole; 11 5. Oil return channel; 116. Second process hole; 117. First working chamber; 118. Arc surface; 119. Third mounting surface; 120. Second working chamber; 121. First external working oil channel; 122. Third external oil port; 123. Second external working oil channel; 124. Fourth external oil port; 125. Third plug-in hole; 126. First electromagnet; 127. Third plug-in surface; 128. Valve core hole; 129. Valve core; 130. Second electromagnet; 2. Cartridge valve; 3. Mounting frame. DETAILED DESCRIPTION

[0028] Embodiment 1:

[0029] like Figure 1 , Figure 2 and Figure 7As shown, a rubber plate vulcanizer vacuum cover mold combination valve includes a valve body 1, in which a valve core hole 128, an oil inlet channel 114 and an oil return channel 115 perpendicular to the valve core hole 128, and four working oil ports are opened. The valve body 1 is an integrally formed structure, and the valve body 1 includes a first functional part 11 and a second functional part 12. The first functional part 11 is provided with a second plug-in surface 104 and a third plug-in surface 127 on the left and right sides respectively, and an arc surface 118 is provided on the front and rear sides of the first functional part 11. The second plug-in surface 104 is provided with a second plug-in hole 108, and the third plug-in surface 127 is provided with a third plug-in hole 125. A first electromagnet 126 is inserted in the second plug-in hole 108, and a second electromagnet 130 is inserted in the third plug-in hole 125. A valve core hole 128 is provided between the first electromagnet 126 and the second electromagnet 130. A second mounting surface 103 is provided on the top of the first functional part 11, and an oil inlet 106 and an oil return port 107 are provided on the second mounting surface 103. The oil inlet 106 is connected to the oil inlet channel 114, and the oil return port 107 is connected to the oil return channel 115; Figure 6 , Figure 7 As shown, the valve core hole 128 is provided with an oil inlet channel 114 , a first working chamber 117 , a second working chamber 120 and an oil return channel 115 .

[0030] like Figure 2-Figure 7 As shown, a first insertion surface 102 is provided on the front side of the second functional part 12, and the rear side surfaces of the first insertion surface 102 and the second functional part 12 are both arc-shaped structural surfaces. A first insertion hole 105 is provided on the first insertion surface 102, and a cartridge valve 2 is inserted in the first insertion hole 105. A first mounting surface 101 and a third mounting surface 119 are provided on the left and right sides of the second functional part 12, respectively. A first external working oil passage 121 and a second external working oil passage 123 are provided through the first mounting surface 101 and the third mounting surface 119, a first external oil port 109 and a third external oil port 122 are provided at both ends of the first external working oil passage 121, and a second external oil port 110 and a fourth external oil port 124 are provided at both ends of the second external working oil passage 123. The first external oil port 109 and the second external oil port 110 are provided on the first mounting surface 101, and the third external oil port 122 and the fourth external oil port 124 are provided on the third mounting surface 119.

[0031] A process channel is also provided on the second functional portion 12 , an end of the process channel is arranged on the rear side of the second functional portion 12 , and the other end of the process channel is communicated with the second external working oil channel 123 .

[0032] like Figure 8 and Fig.10As shown, the first external working oil passage 121 is connected to the middle end of the cartridge valve 2, the axis of the cartridge valve 2 is arranged perpendicularly to the axis of the first external working oil passage 121, the end of the cartridge valve 2 is connected to the second working oil passage 113, the second external working oil passage 123 is connected to the first working oil passage 112, the first working oil passage 112 and the second working oil passage 113 are vertically arranged in the valve body 1, the first working oil passage 112 is connected to the first working chamber 117, the second working oil passage 113 is connected to the second working chamber 120, the first working oil passage 112 and the second working oil passage 113 pass through to the bottom of the valve body 1, the first process hole 111 at the bottom of the valve body 1 is the end of the first working oil passage 112, the second process hole 116 is the end of the second working oil passage 113, and the end openings of the first process hole 111, the second process hole 116 and the process channel in the above description are all provided with plugs.

[0033] like Figure 7 , Fig.10 and Fig.12 As shown, the oil return channel 115 includes a first oil return chamber and a second oil return chamber, the first oil return chamber and the second oil return chamber merge into the oil return channel 115, a first working chamber 117 and a second working chamber 120 are arranged between the first oil return chamber and the second oil return chamber, and an oil inlet channel 114 is arranged between the first working chamber 117 and the second working chamber 120.

[0034] Through the above connection, when installing the combination valve, since the valve body 1 is an integrally formed structure, it is only necessary to insert the cartridge valve 2 into the first insertion hole 105, and insert the first electromagnet 126 and the second electromagnet 130 into the second insertion hole 108, which simplifies the installation form. Since the cartridge valve 2, the first electromagnet 126 and the second electromagnet 130 are relatively large in size, the opening directions of the first insertion hole 105 and the second insertion hole 108 are different, which saves installation space. The openings of the oil inlet 106 and the oil return port 107 are upward, and the first external oil port 109, the second external oil port 110, the third external oil port 122 and the fourth external oil port 124 are respectively opened to the left and right. When connecting an external load, there will be no position conflict with other parts, it is easier to connect the pipeline, the overall position layout is reasonable, and the installation space is saved.

[0035] Among them, the cartridge valve 2 is an electromagnetic ball valve.

[0036] Furthermore, the cartridge valve 2 is a leak-free valve.

[0037] On the basis of the above-mentioned embodiment, in a preferred embodiment, a mounting frame 3 is provided at the bottom of the valve body 1, and a threaded hole is opened on the mounting frame 3, and the combination valve is fixedly installed through the threaded hole.

[0038] The fourth external oil port 124 and the second external oil port 110 are respectively connected to the rodless chambers of the two vacuum cover oil cylinders, and the third external oil port 122 and the first external oil port 109 are respectively connected to the rod chambers of the two vacuum cover oil cylinders. When the valve core 129 is in the middle position, Fig.10 , Fig.12 and Fig.13 As shown, the pump is not unloaded, the oil inlet channel 114 is closed, and the oil return channel 115 is connected to the first working oil channel 112 and the second working oil channel 113.

[0039] When the vulcanizer vacuum cover needs to rise, the first electromagnet 126 is energized, the valve core 129 moves to the right, the oil inlet channel 114 is connected to the second working oil channel 113, and the oil return channel 115 is connected to the first working oil channel 112. The oil enters the second working oil channel 113 through the oil inlet channel 114, and then enters the first external working oil channel 121 through the one-way valve in the plug-in electromagnetic ball valve 2, and then enters the lower chamber of the vacuum cover oil cylinder through the first external oil port 109 and the third external oil port 122, pushing the piston rod to retract and drive the vacuum cover to rise. At the same time, the oil in the upper chamber of the oil cylinder enters the second external working oil channel 123 through the second external oil port 110 and the fourth external oil port 124, and then returns to the oil tank through the first working oil channel 112 and the oil return channel 115. When the vacuum cover rises to the right position, the first electromagnet 126 loses power, the valve core returns to the middle position, and the lower chamber of the oil cylinder no longer enters oil. Under the action of the electromagnetic ball valve, the vacuum cover stops at the upper end position and will not slide down.

[0040] When the vulcanizer vacuum cover cylinder needs to be lowered, the second electromagnet 130 is energized, and the electromagnet of the electromagnetic ball valve is also energized. At this time, the valve core 129 moves to the left, the oil inlet channel 114 is connected to the first working oil channel 112, and the oil return channel 115 is connected to the second working oil channel 113. The oil enters the first working oil channel 112 from the oil inlet channel 114, and then enters the second external working oil channel 123, and then enters the upper chamber of the vacuum cover cylinder through the second external oil port 110 and the fourth external oil port 123, pushing the piston rod to extend and driving the vacuum cover to descend. At the same time, the oil in the lower chamber of the cylinder enters the first external working oil channel 121 through the first external oil port 109 and the third external oil port 122, and then enters the second working oil channel 113 through the electromagnetic ball valve that has been energized and opened, and finally returns to the oil tank through the oil return channel 115.

Claims

1. A vacuum cover mold clamping combination valve for a rubber flat plate vulcanizer, comprising a valve body (1), wherein the valve body (1) is provided with a valve core hole (128), an oil inlet channel (114) perpendicular to the valve core hole (128), an oil return channel (115), and a working oil port, wherein: The valve body (1) comprises a first functional part (11) and a second functional part (12); a second plug-in surface (104) and a third plug-in surface (127) are respectively provided on the left and right sides of the first functional part (11); arcuate surfaces (118) are provided on the front and rear sides of the first functional part (11); a second plug-in hole (108) is provided on the second plug-in surface (104); a third plug-in hole (125) is provided on the third plug-in surface (127); a first electromagnet (125) is plugged into the second plug-in hole (108); 26), a second electromagnet (130) is inserted into the third insertion hole (125), a valve core hole (128) is provided between the first electromagnet (126) and the second electromagnet (130), a second mounting surface (103) is provided on the top of the first functional part (11), an oil inlet (106) and an oil return port (107) are provided on the second mounting surface (103), the oil inlet (106) is communicated with the oil inlet channel (114), and the oil return port (107) is communicated with the oil return channel (115); An oil inlet channel (114), a first working chamber (117), a second working chamber (120) and an oil return channel (115) are provided in the valve core hole (128); A first plug-in surface (102) is provided at the front side of the second functional part (12), a first plug-in hole (105) is provided on the first plug-in surface (102), a cartridge valve (2) is inserted in the first plug-in hole (105), a first mounting surface (101) and a third mounting surface (119) are provided on the left and right sides of the second functional part (12), a first external working oil passage (121) and a third mounting surface (119) are provided between the first mounting surface (101) and the third mounting surface (119). a second external working oil passage (123), wherein a first external oil port (109) and a third external oil port (122) are provided at both ends of the first external working oil passage (121), a second external oil port (110) and a fourth external oil port (124) are provided at both ends of the second external working oil passage (123), the first external oil port (109) and the second external oil port (110) are provided on the first mounting surface (101), and the third external oil port (122) and the fourth external oil port (124) are provided on the third mounting surface (119); The first external working oil passage (121) is connected to the middle end of the cartridge valve (2); the axis of the cartridge valve (2) is arranged perpendicular to the axis of the first external working oil passage (121); the end of the cartridge valve (2) is connected to the second working oil passage (113); the second external working oil passage (123) is connected to the first working oil passage (112); the first working oil passage (112) and the second working oil passage (113) are vertically arranged in the valve body (1); the first working oil passage (112) is connected to the first working chamber (117); the second working oil passage (113) is connected to the second working chamber (120); the first working oil passage (112) and the second working oil passage (113) penetrate to the bottom of the valve body (1).

2. A rubber plate vulcanizing machine vacuum cover mold combination valve according to claim 1, characterized in that: The first insertion surface (102) and the rear side surface of the second functional portion (12) are both arc-shaped structural surfaces.

3. The vacuum cover mold clamping combined valve for a rubber plate vulcanizing machine according to claim 1, characterized in that: The oil return channel (115) comprises a first oil return chamber and a second oil return chamber, the first oil return chamber and the second oil return chamber merge into the oil return channel (115), a first working chamber (117) and a second working chamber (120) are arranged between the first oil return chamber and the second oil return chamber, and an oil inlet channel (114) is arranged between the first working chamber (117) and the second working chamber (120).

4. The vacuum cover mold clamping combined valve for a rubber plate vulcanizing machine according to claim 1, characterized in that: The cartridge valve (2) is an electromagnetic ball valve.

5. The vacuum cover mold clamping combined valve for a rubber plate vulcanizing machine according to claim 4, characterized in that: The cartridge valve (2) is a leak-free valve.

6. The vacuum cover mold clamping combined valve for a rubber plate vulcanizing machine according to claim 1, characterized in that: A mounting frame (3) is provided at the bottom of the valve body.

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