A hydraulic press with efficient drainage function

Abstract

The invention discloses a hydraulic press with efficient drainage function, including a hydraulic press body, a connecting water pipe, a vacuum pipe, a transmission rod and a water collecting tank connected to the hydraulic press body; the hydraulic press body includes an upper beam, an upper die, a lower die, a lower beam and a connecting column, the upper die and the lower die are pressed and matched with each other, and the upper beam drives the upper die to run in the length direction of the connecting column; the top of the water collecting tank is sealed with a cover plate, and the inner cavity of the water collecting tank is provided with a sealing assembly; one end of the transmission rod is connected to the upper beam, and the other end passes through the cover plate and is connected to the sealing assembly; one end of the connecting water pipe is connected to the upper die, and the other end is connected to the inner cavity of the water collecting tank through the cover plate; the bottom of the water collecting tank is connected to the drainage pipe, and the vacuum pipe is connected to the inner cavity of the water collecting tank through the cover plate, and the sealing assembly correspondingly blocks the vacuum pipe and the drainage pipe during the reciprocating operation of the transmission rod. The invention aims to realize the automatic drainage function of the hydraulic press.

Description

Technical Field

[0001] The invention relates to the technical field of hydraulic presses, and in particular to a hydraulic press with a high-efficiency drainage function. Background Art

[0002] At present, hydraulic press, also known as oil press, is a machine that uses liquid static pressure to process metal, plastic, rubber, wood, powder and other products. It is often used in pressing and forming processes, such as forging, stamping, cold extrusion, straightening, bending, flanging, sheet metal drawing, powder metallurgy, press fitting, etc.

[0003] For the wet press used for extrusion molding of magnetic materials, the slurry is squeezed and dehydrated after the press is closed, and the water is sucked away through the pipe. In the prior art, an independent vacuum system is usually configured for water absorption. For example, the utility model patent with patent publication number CN203031726U discloses a bottom-top permanent magnetic wet pressing hydraulic press, which is equipped with a vacuum negative pressure tank on the main machine. The vacuum negative pressure tank includes a tank body and a pipe, and the pipe is connected to the water hole; the utility model has the function of automatic drainage through the vacuum negative pressure tank. Generally, a solenoid valve needs to be installed at the seepage port to control the vacuum on and off, and a water storage tank needs to be installed behind the vacuum pipe to manually drain the water storage tank regularly. However, the manual drainage of the water storage tank is cumbersome, and the drainage interval is usually long, the outlet valve is easy to be blocked, and the installation of the drainage solenoid valve requires maintenance and replacement costs.

[0004] Traditionally, in some equipment, a solenoid valve is installed at the drain port of the vacuum water storage tank to control the periodic automatic drainage. Although the vacuum on-off and automatic drainage functions are realized, additional electrical components, such as travel switches, proximity switches, solenoid valves, relays, etc., are required for signal collection and action execution, which increases the complexity of the equipment and the difficulty of maintenance. Therefore, there is an urgent need for a hydraulic press with low cost, simple equipment structure, easy maintenance, and vacuum on-off and automatic drainage functions. Summary of the invention

[0005] The main purpose of the present invention is to provide a hydraulic press with efficient drainage function, aiming to solve the technical problem that the hydraulic press cannot achieve automatic drainage.

[0006] To achieve the above-mentioned object, the present invention provides a hydraulic press with efficient drainage function, comprising a hydraulic press body, a connecting water pipe, a vacuum pipe, a transmission rod and a water collecting tank;

[0007] The hydraulic press body comprises an upper beam, an upper die, a lower die, a lower beam and a connecting column. The upper die and the lower die are pressed and matched with each other. The upper beam drives the upper die to run in the length direction of the connecting column, and the lower die set on the lower beam is pressed and contacted with the upper die in a reciprocating manner.

[0008] The top of the water collecting tank is sealed with a cover plate, and the inner cavity of the water collecting tank is provided with a sealing component;

[0009] One end of the transmission rod is connected to the upper beam, and the other end passes through the cover plate and is connected to the sealing assembly;

[0010] One end of the connecting water pipe is connected to the upper mold, and the other end is connected to the inner cavity of the water collecting tank through the cover plate;

[0011] The bottom of the water collecting tank is connected with the drain pipe, and the vacuum tube is connected with the inner cavity of the water collecting tank through the cover plate. The sealing component blocks the vacuum tube and the drain pipe accordingly during the reciprocating operation of the transmission rod.

[0012] Optionally, the sealing assembly includes a first sealing plate, a guide sleeve, a second sealing plate, and a guide column, the first sealing plate and the second sealing plate are respectively arranged at both ends of the guide column, the guide sleeve is sleeved on the outer surface of the guide column, and the guide sleeve is connected to the transmission rod.

[0013] Optionally, corresponding upper springs and lower springs are provided between the guide sleeve and the first sealing plate and the second sealing plate, and the guide sleeve is slidably sleeved on the outer surface of the guide column.

[0014] Optionally, the upper mold cloth is provided with a water seepage port, and the water seepage port is connected to and communicated with one end of the connecting water pipe.

[0015] Optionally, the cover plate is provided with a first through hole, the first through hole is connected to the inner cavity of the water collecting tank, the vacuum tube passes through the first through hole and extends into the inner cavity of the water collecting tank or the vacuum tube extends into the first through hole.

[0016] Optionally, the cover plate is further provided with a second through hole, and the end of the connecting water pipe away from the upper mold is connected to the inner cavity of the water collecting tank through the second through hole.

[0017] Optionally, the cover plate is further provided with a third through hole, and the transmission rod passes through the third through hole and slides in the third through hole.

[0018] Optionally, an annular sealing member is disposed on the upper and lower surfaces of the third through hole, and the inner surface of the sealing member is in sliding contact with the outer surface of the transmission rod and seals the third through hole.

[0019] Optionally, a drain outlet is provided at the bottom of the water collecting tank, and the drain outlet is connected to one end of a drain pipe.

[0020] Optionally, the drain pipe is a flexible structure.

[0021] Beneficial effects:

[0022] 1. The combination of the hydraulic press body and the connecting water pipe, vacuum pipe, transmission rod, water collecting tank and sealing assembly realizes automatic drainage and vacuum opening and closing, that is, the upper beam moves downward to gradually close the die surfaces of the upper die and the lower die, thereby squeezing the slurry stored in the lower die, and the lower die is pressed into contact with the upper die to gradually squeeze out the water in the slurry. Based on the connection between the vacuum pipe and the inner cavity of the water collecting tank, and the sealing assembly can block the vacuum pipe and the drainage pipe accordingly, the water in the slurry is sucked out into the water collecting tank under vacuum conditions, and the water in the water collecting tank is discharged through the drainage pipe under non-vacuum conditions;

[0023] 2. The specific structural arrangement of the first sealing plate, the guide sleeve, the second sealing plate, the guide column and the upper and lower springs inside the sealing assembly, that is, the first sealing plate and the second sealing plate are respectively arranged at the two ends of the guide column, the guide sleeve is arranged on the outer surface of the guide column, the guide sleeve is connected to the transmission rod, and the first sealing plate and the second sealing plate correspond to block the vacuum tube and the drain pipe during the reciprocating operation of the transmission rod; and corresponding upper springs and lower springs are arranged between the guide sleeve and the first sealing plate and the second sealing plate, the guide sleeve sliding sleeve is arranged on the outer surface of the guide column, and the arrangement of the upper spring and the lower spring enables the first sealing plate and the second sealing plate to achieve better effects when correspondingly blocking the vacuum tube and the drain pipe;

[0024] 3. The invention has a clear structure, a low manufacturing cost of the fully mechanical structure, and linkage actions to achieve automatic drainage and vacuum opening and closing, which is beneficial to improving production efficiency, reducing vacuum loss and energy waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0026] Figure 1 It is a structural schematic diagram of an embodiment of a hydraulic press with a high-efficiency drainage function according to the present invention when the upper beam is located at the upper end travel stop point;

[0027] Figure 2 for Figure 1 A partially enlarged schematic diagram of the structure shown;

[0028] Figure 3 for Figure 1 The schematic diagram of the structure is when the upper beam of the structure is located at the end point of the lower end travel.

[0029] Description of Figure Numbers:

[0030]

[0031] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with the implementation methods and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] It should be noted that all directional indications (such as up, down, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0034] In addition, in the present invention, the descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0035] Furthermore, the technical solutions between the various embodiments of the present invention may be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in the field. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0036] See also Figures 1 to 3The present invention provides a structural schematic diagram of an embodiment of a hydraulic press with efficient drainage function, which includes a hydraulic press body 1, a connecting water pipe 2, a vacuum tube 3, a transmission rod 4 and a water collecting tank 5; the hydraulic press body 1 includes an upper beam 11, an upper mold 12, a lower mold 13, a lower beam 14 and a connecting column 15. Among them, the upper beam 11 is arranged above the hydraulic press body 1, and reciprocates along the length direction of the connecting column 15 driven by the power component, and the upper beam 11 is connected to the upper mold 12, so that the upper beam 11 drives the upper mold 12 to run in the length direction of the connecting column 15, and the lower beam 14 is fixedly arranged below the hydraulic press body 1, and the lower mold 13 is arranged on the lower beam 14 and is located directly below the upper mold 12, and the upper mold 12 and the lower mold 13 are pressed and matched with each other, and then in actual application, slurry is arranged in the lower mold 13, and the upper beam 11 moves downward to gradually close the mold surfaces of the upper mold 12 and the lower mold 13, thereby squeezing the slurry stored in the lower mold 13, and the lower mold 13 is pressed and contacted with the upper mold 12 to gradually squeeze out the water in the slurry.

[0037] Furthermore, the top of the water collecting tank 5 is sealed and connected with a cover plate 6, and the inner cavity of the water collecting tank 5 is provided with a sealing assembly, one end of the transmission rod 4 is connected to the upper beam 11, and the other end passes through the cover plate 6 and is connected to the sealing assembly, and then the sealing assembly is driven to reciprocate up and down in the inner cavity of the water collecting tank 5 through the transmission rod 4; at the same time, one end of the connecting water pipe 2 is connected to the upper mold 12, and the other end passes through the cover plate 6 and is connected to the inner cavity of the water collecting tank 5, and the bottom of the water collecting tank 5 is connected to the drain pipe 7, the vacuum tube 3 is connected to the inner cavity of the water collecting tank 5 through the cover plate 6, and the sealing assembly can seal the vacuum tube 3 and the drain pipe 7 accordingly, so as to realize the absorption of water in the slurry into the water collecting tank 5 under vacuum conditions, and the discharge of water in the water collecting tank 5 through the drain pipe 7 under non-vacuum conditions. Wherein, the vacuum tube 3 is connected to the corresponding vacuum pumping assembly.

[0038] Furthermore, if Figure 2 As shown, the sealing assembly includes a first sealing plate 51, a guide sleeve 52, a second sealing plate 53, and a guide column 54. The first sealing plate 51 and the second sealing plate 53 are respectively arranged at both ends of the guide column 54. The guide sleeve 52 is sleeved on the outer surface of the guide column 54. The guide sleeve 52 is connected to the transmission rod 4, and the first sealing plate 51 and the second sealing plate 53 correspondingly block the vacuum tube 3 and the drain pipe 7 during the reciprocating operation of the transmission rod 4.

[0039] Furthermore, corresponding upper springs 55 and lower springs 56 are arranged between the guide sleeve 52 and the first sealing plate 51 and the second sealing plate 53. The guide sleeve 52 is slidably sleeved on the outer surface of the guide column 54. The arrangement of the upper spring 55 and the lower spring 56 enables the first sealing plate 51 and the second sealing plate 53 to achieve better effects when correspondingly blocking the vacuum tube 3 and the drain pipe 7.

[0040] Furthermore, the upper mold 12 is provided with a water seepage port 121, and the water seepage port 121 is connected to one end of the connecting water pipe 2. The setting of the water seepage port 121 facilitates the water squeezed out by closing the mold surfaces of the upper mold 12 and the lower mold 13 to slowly flow out through the water seepage port, and under vacuum conditions, flow to the water collection tank 5 through the connecting water pipe 2 for storage.

[0041] Furthermore, the cover plate 6 is provided with a first through hole, which is connected to the inner cavity of the water collecting tank 5. The vacuum tube 3 passes through the first through hole and extends into the inner cavity of the water collecting tank 5. Therefore, the area where the first sealing plate 51 in the sealing assembly contacts the vacuum tube 3 is the vacuum tube orifice 31, and the first sealing plate 51 can completely cover the vacuum tube orifice 31.

[0042] In addition, if the vacuum tube 3 extends into the first through hole but does not extend into the inner cavity of the water collecting tank 5, that is, the vacuum tube mouth 31 does not completely pass through the first through hole, then the first sealing plate 51 in the sealing assembly contacts the first through hole, and the first sealing plate 51 can completely cover the first through hole to achieve the effect of sealing the vacuum tube 3.

[0043] Furthermore, the cover plate 6 is also provided with a second through hole, and the end of the connecting water pipe 2 away from the upper mold 12 is connected with the inner cavity of the water collecting tank 5 through the second through hole, wherein the outer surface of the connecting water pipe 2 is in sealing contact with the inner wall of the second through hole; in addition, the corresponding auxiliary connecting piece 61 can be detachably connected to the pipe mouth of the connecting water pipe 2, and the auxiliary connecting piece 61 passes through the second through hole and is sealingly connected to the second through hole, so that the connecting water pipe 2 is connected with the inner cavity of the water collecting tank 5 through the auxiliary connecting piece 61, and then the connecting water pipe 2 is connected to the outside of the water collecting tank 5, which is convenient for cleaning and replacement of the connecting water pipe 2.

[0044] Furthermore, the cover plate 6 is also provided with a third through hole, and the transmission rod 4 passes through the third through hole and slides in the third through hole. The outer surface of the transmission rod 4 is slidably and sealingly connected to the third through hole.

[0045] Furthermore, an annular sealing member 8 is disposed on the upper and lower surfaces of the third through hole, and the inner surface of the sealing member 8 is in sliding contact with the outer surface of the transmission rod 4 and seals the third through hole.

[0046] Furthermore, a drain port 57 is provided at the bottom of the water collecting tank 5 , and the drain port 57 is connected to one end of the drain pipe 7 .

[0047] Further, the drain pipe 7 is a flexible structure. In addition, the drain pipe 7 can also adopt a retractable flexible member.

[0048] Furthermore, the water collecting tank 5 can be fixed to the hydraulic press body 1 by a connecting member 58, specifically, as Figure 1 Or as shown in Figure 3, the connecting member 58 is a clamp, and the water collecting tank 5 is fixed to the connecting column 15 through the clamp, or the connecting member 58 can also be a back plate bolt, and the water collecting tank 5 is fixed to the hydraulic press body 1 by the back plate bolt; in addition, the water collecting tank 5 can also be separated from the hydraulic press body 1 and fixed independently.

[0049] Further, in order to better explain the structure of the present invention, the operating principle of the present invention is described below with a specific structure, including:

[0050] The process of beam ascending and descending:

[0051] First, when the upper beam 11 is located at the upper end travel stop point, the first sealing plate 51 and the vacuum tube orifice 31 are sealed under the extrusion force of the upper spring 55, the vacuum is cut off, and the drain port 57 is connected and in a drainable state; and the upper beam 11 moves downward and gradually closes the upper and lower mold surfaces, squeezing the slurry stored in the lower mold 13, and the transmission rod 4 moves downward with the upper beam 11, driving the sealing assembly downward, and causing the upper spring 55 to gradually release pressure so that the first sealing plate 51 is out of contact with the vacuum tube orifice 31, and the vacuum is turned on.

[0052] Second, as the second sealing plate 53 contacts the drain port 57, the guide sleeve 52 moves downward along the guide pillar 54 and compresses the lower spring 56, so that the second sealing plate 53 is tightly fitted and sealed with the drain port 57. At the same time, the vacuum tube 3 is connected to the water collecting tank 5 through the vacuum tube port 31, and negative pressure is generated in the water collecting tank 5.

[0053] Third, the seepage water is continuously sucked into the water collection tank 5 from the upper mold water seepage port 121 through the connecting water pipe 2. This process further realizes the functions of vacuum opening, water outlet closing, and temporary storage of water in the water collection tank 5.

[0054] Beam ascending process:

[0055] First, when the upper beam 11 is at the lower end of the travel stop point, the second sealing plate 53 and the drain port 57 are sealed under the extrusion of the lower spring 56, and the water sucked out by vacuum is temporarily stored in the water collecting tank 5. When the upper beam 11 moves upward, the upper and lower molds are closed, and the transmission rod 4 moves upward with the upper beam 11, gradually releasing the pressure so that the second sealing plate 53 is out of contact with the drain port 57, and the drain port 57 is connected to the outside through the drain pipe 7, realizing automatic drainage.

[0056] Second, as the first sealing plate 51 contacts the vacuum tube orifice 31, the guide sleeve 52 moves upward along the guide pillar 54 and presses the upper spring 55, so that the first sealing plate 51 and the vacuum tube orifice 31 are tightly fitted and sealed, and the vacuum is cut off. This process realizes the functions of automatic drainage and vacuum closing.

[0057] In the above embodiments, those skilled in the art may adopt the existing technology for software control. The present invention only protects the structure of a hydraulic press with a high-efficiency drainage function and the mutual connection relationship.

[0058] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention's specification and drawings, or directly / indirectly applied in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A hydraulic press with efficient drainage function, characterized in that: It comprises a hydraulic press body (1), a connecting water pipe (2), a vacuum pipe (3), a transmission rod (4) and a water collecting tank (5); The hydraulic press body (1) comprises an upper beam (11), an upper die (12), a lower die (13), a lower beam (14) and a connecting column (15); the upper die (12) and the lower die (13) are pressed and matched with each other; the upper beam (11) drives the upper die (12) to move in the length direction of the connecting column (15), and enables the lower die (13) arranged on the lower beam (14) to reciprocately press and contact with the upper die (12); The top of the water collecting tank (5) is sealed with a cover plate (6), and the inner cavity of the water collecting tank (5) is provided with a sealing component; One end of the transmission rod (4) is connected to the upper beam (11), and the other end passes through the cover plate (6) and is connected to the sealing assembly; One end of the connecting water pipe (2) is connected to the upper mold (12), and the other end is connected to the inner cavity of the water collecting tank (5) through the cover plate (6); The bottom of the water collecting tank (5) is in communication with the drain pipe (7), the vacuum tube (3) is in communication with the inner cavity of the water collecting tank (5) via the cover plate (6), and the sealing assembly seals the vacuum tube (3) and the drain pipe (7) accordingly during the reciprocating operation of the transmission rod (4).

2. The hydraulic press with efficient drainage function according to claim 1, characterized in that: The sealing assembly comprises a first sealing plate (51), a guide sleeve (52), a second sealing plate (53), and a guide column (54); the first sealing plate (51) and the second sealing plate (53) are respectively arranged at two ends of the guide column (54); the guide sleeve (52) is sleeved on the outer surface of the guide column (54); and the guide sleeve (52) is connected to the transmission rod (4).

3. The hydraulic press with efficient drainage function according to claim 2, characterized in that: Corresponding upper springs (55) and lower springs (56) are provided between the guide sleeve (52) and the first sealing plate (51) and the second sealing plate (53); the guide sleeve (52) is slidably sleeved on the outer surface of the guide column (54).

4. The hydraulic press with high-efficiency drainage function according to any one of claims 1 to 3, characterized in that: The upper mold (12) is provided with a water seepage port (121), and the water seepage port (121) is connected to and communicates with one end of the connecting water pipe (2).

5. The hydraulic press with efficient drainage function according to claim 4, characterized in that: The cover plate (6) is provided with a first through hole, the first through hole being in communication with the inner cavity of the water collecting tank (5), the vacuum tube (3) passing through the first through hole and extending into the inner cavity of the water collecting tank (5) or the vacuum tube (3) extending into the first through hole.

6. The hydraulic press with efficient drainage function according to claim 4, characterized in that: The cover plate (6) is also provided with a second through hole, and the end of the connecting water pipe (2) away from the upper mold (12) is connected to the inner cavity of the water collecting tank (5) through the second through hole.

7. The hydraulic press with efficient drainage function according to claim 4, characterized in that: The cover plate (6) is also provided with a third through hole, and the transmission rod (4) passes through the third through hole and slides in the third through hole.

8. The hydraulic press with high-efficiency drainage function according to claim 7, characterized in that: An annular sealing member (8) is arranged on the upper and lower surfaces of the third through hole, and the inner surface of the sealing member (8) is in sliding contact with the outer surface of the transmission rod (4) to seal the third through hole.

9. The hydraulic press with efficient drainage function according to any one of claims 5 to 8, characterized in that: A drainage port (57) is provided at the bottom of the water collecting tank (5), and the drainage port (57) is connected to one end of a drainage pipe (7).

10. The hydraulic press with high-efficiency drainage function according to claim 9, characterized in that: The drainage pipe (7) is a flexible structure.

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