Hydraulic machine facilitating die replacement

Abstract

The utility model discloses a hydraulic press convenient to replace a die, which comprises a fixed bottom block and supporting columns arranged at four corners of the bottom surface of the fixed bottom block, and is characterized in that a U-shaped frame is mounted on the top surface of the fixed bottom block, a supporting plate is mounted on the top surface of the U-shaped frame, two side plates are arranged on the top surface of the supporting plate, and the two side plates are arranged on the top surface of the U-shaped frame. Two lifting rods are installed on the top surfaces of the two side plates correspondingly, the top ends of the four lifting rods are connected with the four corners of the bottom surface of a top plate correspondingly, a mold is fixed to the top surface of a supporting plate through arrangement of a limiting assembly, meanwhile, a movable rod gets close to the mold along a connecting rod under the action of a spring, and the mold is fixed to the top surface of the mold. According to the mold limiting and fixing device, the limiting clamping block on the fixing block and the spring synchronously move and enter the limiting clamping groove, meanwhile, certain elastic force is achieved under the action of the spring, it is ensured that the limiting clamping block is stably clamped into the limiting clamping groove, the better limiting and fixing effect is achieved, and the mold can be better disassembled and assembled conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic presses, in particular to a hydraulic press which is convenient for replacing moulds. Background Art

[0002] A hydraulic press is a machine that uses liquid as the working medium and is made according to Pascal's principle to transfer energy to achieve various processes. A hydraulic press generally consists of three parts: the machine (host), the power system, and the hydraulic control system. Hydraulic presses are classified into valve hydraulic presses, liquid hydraulic presses, and engineering hydraulic presses.

[0003] Chinese patent authorization announcement number CN 206436568 U discloses a hydraulic press with an automatic sensing safety protection device. Although the safety protection performance of the hydraulic press is effectively improved and safety accidents during the operation of the hydraulic press are avoided by setting a protection control unit, a photoelectric transmitter, a photoelectric sensor and other safety operation protection devices in the hydraulic press, the efficiency of replacing the mold cannot be improved. Therefore, we propose a hydraulic press that is easy to replace the mold. Utility Model Content

[0004] The utility model aims to provide a hydraulic press which is convenient for replacing molds. By setting a limit assembly, the mold is fixed on the top surface of a support plate. At the same time, the movable rod approaches the mold along the connecting rod under the action of a spring, so that the limit card block on the fixed block moves synchronously with the spring and enters the interior of the limit card slot. At the same time, a certain elastic force is achieved under the action of the spring to ensure that the limit card block is stably inserted into the interior of the limit card slot, thereby achieving a better limit fixing effect and facilitating better disassembly and assembly of the mold.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a hydraulic press that is convenient for replacing molds, comprising a fixed bottom block and support columns arranged at the four corners of the bottom surface of the fixed bottom block, characterized in that: a U-shaped frame is installed on the top surface of the fixed bottom block, a support plate is installed on the top surface of the U-shaped frame, two side plates are installed on the top surface of the support plate, two lifting rods are installed on the top surface of the two side plates, the top ends of the four lifting rods are respectively connected to the four corners of the bottom surface of the top plate, a first hydraulic control system is provided on the top surface of the top plate, a hydraulic pump is installed on the bottom surface of the top plate, the first hydraulic control system and the hydraulic pump are electrically connected, the Two hydraulic rods are installed on the bottom surface of the hydraulic pump, and a rotating threaded sleeve is installed at the bottom ends of the two hydraulic rods. The bottom surface of the rotating threaded sleeve is connected to the extrusion block. Two slide grooves are provided on the support plate, and a mold is installed on the support plate, and a limiting component for fixing the position of the mold is installed on the mold. The limiting component includes a connecting rod arranged inside the slide groove, a movable rod is sleeved on the outer wall of the connecting rod, and a spring is sleeved on the outer wall of the connecting rod, and two ends of the spring are respectively connected to the movable rod and the inner wall of the slide groove, a fixed block is installed on the top of the movable rod, and a handle is installed on the side of the fixed block away from the mold.

[0006] Furthermore, a second hydraulic system is installed on the top surface of the fixed bottom block, and two ejector rods are installed on the top surface of the second hydraulic system. Through holes are provided at positions of the two ejector rods corresponding to the support plate, and one end of the two ejector rods away from the second hydraulic system can extend into the interior of the molding cavity.

[0007] Furthermore, a limit slot is provided on the outer side wall of the mold, and two limit blocks are installed on a side of the fixed block away from the handle, and the limit blocks are matched with the limit slot.

[0008] Compared with the prior art, the beneficial effects of the utility model are:

[0009] By setting the limit assembly, the mold is fixed on the top surface of the support plate, and at the same time, the movable rod approaches the mold along the connecting rod under the action of the spring, so that the limit card block on the fixed block moves synchronously with the spring and enters the interior of the limit card slot. At the same time, a certain elastic force is achieved under the action of the spring to ensure that the limit card block is stably inserted into the interior of the limit card slot, thereby achieving a better limit fixing effect and facilitating better disassembly and assembly of the mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural schematic diagram of the utility model;

[0011] Figure 2 This is a schematic diagram of the structure of the U-shaped frame in the utility model;

[0012] Figure 3 It is a structural schematic diagram of the mold in the utility model.

[0013] In the figure: 1. fixed bottom block; 2. U-shaped frame; 3. support plate; 4. side plate; 5. lifting rod; 6. top plate; 7. first hydraulic control system; 8. hydraulic pump; 9. hydraulic rod; 10. rotating threaded sleeve; 11. extrusion block; 12. slide groove; 13. connecting rod; 14. movable rod; 15. spring; 16. fixed block; 17. handle; 18. mold; 19. molding cavity; 20. second hydraulic system; 21. ejector rod. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0015] Example:

[0016] See also Figure 1-3 The utility model provides a hydraulic press which is convenient for replacing molds, comprising a fixed bottom block 1 and support columns arranged at the four corners of the bottom surface of the fixed bottom block 1, characterized in that: a U-shaped frame 2 is installed on the top surface of the fixed bottom block 1, a support plate 3 is installed on the top surface of the U-shaped frame 2, two side plates 4 are installed on the top surface of the support plate 3, two lifting rods 5 are installed on the top surface of the two side plates 4, the top ends of the four lifting rods 5 are respectively connected to the four corners of the bottom surface of the top plate 6, a first hydraulic control system 7 is installed on the top surface of the top plate 6, a hydraulic pump 8 is installed on the bottom surface of the top plate 6, the first hydraulic control system 7 and the hydraulic pump 8 are electrically connected, two hydraulic rods 9 are installed on the bottom surface of the hydraulic pump 8, and the two A rotating threaded sleeve 10 is installed at the bottom end of the hydraulic rod 9, and the bottom surface of the rotating threaded sleeve 10 is connected to the extrusion block 11. Two slide grooves 12 are provided on the support plate 3, and a mold 18 is installed on the support plate 3, and the mold 18 and the support plate 3 are installed with a limiting component for fixing the position of the mold 18, and the limiting component includes a connecting rod 13 arranged inside the slide groove 12, and the outer wall of the connecting rod 13 is sleeved with a movable rod 14, and the outer wall of the connecting rod 13 is sleeved with a spring 15, and the two ends of the spring 15 are respectively connected to the movable rod 14 and the inner wall of the slide groove 12, and a fixed block 16 is installed at the top end of the movable rod 14, and a handle 17 is installed on the side of the fixed block 16 away from the mold 18.

[0017] Furthermore, a second hydraulic system 20 is installed on the top surface of the fixed bottom block 1, and two ejector rods 21 are installed on the top surface of the second hydraulic system 20. Through holes are provided at positions of the two ejector rods 21 corresponding to the support plate 3, and one end of the two ejector rods 21 away from the second hydraulic system 20 can extend to the interior of the molding cavity 19.

[0018] Furthermore, a limit slot is provided on the outer side wall of the mold 18 , and two limit blocks are installed on a side of the fixing block 16 away from the handle 17 , and the limit blocks are matched with the limit slot.

[0019] The working process of this utility model:

[0020] First, the material to be extruded is placed in the molding cavity 19 on the mold 18, and then the height of the top plate 6 can be controlled by the lifting rod 5, and then the first hydraulic control system 7 controls the hydraulic pump 8, and under the action of the hydraulic pump 8, the hydraulic rod 9 and the extrusion block 11 are controlled to press down, and then the molding cavity 19 inside the mold 18 is extruded under the action of the extrusion block 11. At the same time, the extrusion block 11 on the hydraulic rod 9 can be disassembled and assembled by rotating the rotating threaded sleeve 10 counterclockwise. When the mold 18 needs to be replaced, the staff first pulls out the handle 17 on the fixed block 16 so that the fixed block 16 is separated from the inside of the limiting card slot with the limiting card block. When the limiting card block is completely separated from the inside of the limiting card slot, the staff removes the mold 18 on the support plate 3 and replaces it. After the extrusion block 11 extrude and molds the internal composite material of the molding cavity 19, the second hydraulic system 20 drives the ejector rod 21 to rise, and one end of the ejector rod 21 ejects the material inside the molding cavity 19.

[0021] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hydraulic press for convenient mold replacement, comprising a fixed bottom block (1) and support columns arranged at four corners of the bottom surface of the fixed bottom block (1), characterized in that: A U-shaped frame (2) is installed on the top surface of the fixed bottom block (1), a support plate (3) is installed on the top surface of the U-shaped frame (2), the top surface of the support plate (3) is provided with two side plates (4), the top surfaces of the two side plates (4) are both provided with two lifting rods (5), the top ends of the four lifting rods (5) are respectively connected to the four corners of the bottom surface of the top plate (6), the top surface of the top plate (6) is provided with a first hydraulic control system (7), the bottom surface of the top plate (6) is provided with a hydraulic pump (8), the first hydraulic control system (7) and the hydraulic pump (8) are electrically connected, the bottom surface of the hydraulic pump (8) is provided with two hydraulic rods (9), the bottom ends of the two hydraulic rods (9) are both provided with a rotating threaded sleeve (10), the bottom surface of the rotating threaded sleeve (10) is connected to the extrusion block (11), the support plate (3) is provided with two slide grooves (12), a mold (18) is installed on the support plate (3), and the mold (18) is located between the two slide grooves (12), a molding cavity (19) is provided on the top surface of the mold (18), a limiting component for fixing the position of the mold (18) is installed on the support plate (3), the limiting component includes a connecting rod (13) arranged inside the slide groove (12), the outer wall of the connecting rod (13) is provided with a movable rod (14), the outer wall of the connecting rod (13) is provided with a spring (15), and the two ends of the spring (15) are respectively connected to the movable rod (14) and the inner wall of the slide groove (12), a fixing block (16) is installed at the top end of the movable rod (14), and a handle (17) is installed on the side of the fixing block (16) away from the mold (18).

2. A hydraulic press for facilitating mold replacement according to claim 1, characterized in that: A second hydraulic system (20) is installed on the top surface of the fixed bottom block (1), and two ejector rods (21) are installed on the top surface of the second hydraulic system (20). Through holes are provided at positions of the two ejector rods (21) corresponding to the support plate (3), and one end of the two ejector rods (21) away from the second hydraulic system (20) can extend into the interior of the molding cavity (19).

3. A hydraulic press for facilitating mold replacement according to claim 1, characterized in that: The outer wall of the mold (18) is provided with a limit slot, and two limit blocks are installed on the side of the fixed block (16) away from the handle (17), and the limit blocks are matched with the limit slot.

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