A mining mechanical processing extrusion device

Abstract

The present invention provides a mechanical processing extrusion device for mining, which relates to the field of mechanical processing technology, including a cavity opened in the lower die, a plurality of side sleeves are installed at equal intervals on the upper end of the lower die, and the plurality of side sleeves are respectively connected in the cavity, and a threaded disk is threadedly connected in each side sleeve, and a plurality of control sleeves are installed at equal intervals along the axis of the threaded disk, and a slow-flow rod is coaxially arranged on each control sleeve, and a connecting groove is opened in the slow-flow rod, and a plurality of control grooves connected to the connecting groove are opened at equal intervals on the side wall of each slow-flow rod, and the upper ends of the plurality of connecting grooves are respectively connected in the side sleeves, and the smooth demolding of the workpiece is achieved through the ingenious cooperation of the energy storage and hydraulic transmission systems. After the extrusion molding is completed, the energy storage device releases energy, and the ejection mechanism is driven by the hydraulic system to ensure that the workpiece can be detached from the mold, which effectively solves the problem that the workpiece is difficult to demold in traditional equipment.

Description

Technical Field

[0001] The present invention relates to the field of mechanical processing technology, and more specifically, to a mechanical processing extrusion device for mining. Background Art

[0002] In the field of mining mechanical processing, the extrusion molding process is a key production process, and its processing quality directly affects the performance and service life of parts. However, the existing mechanical processing extrusion device has limitations in practical application, especially when high-pressure molding of plates. Since the process requires a large pressure to be applied to ensure molding accuracy and surface quality, this high pressure often leads to a large friction and adsorption force between the molded workpiece and the mold, forming a demolding resistance that is difficult to overcome.

[0003] This demolding difficulty seriously affects production efficiency and operational safety. When operators try to remove the molded parts, they often need to use additional tools or equipment to assist in demolding, which not only increases the complexity of the process and operation time, but may also cause scratches or deformation on the workpiece surface during the demolding process. What is more serious is that improper demolding operations may cause the workpiece to be scrapped and even pose a safety hazard. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the problems existing in the prior art, the present invention provides a mechanical processing extrusion device for mining to solve the technical problems mentioned in the background technology.

[0006] (II) Technical solution

[0007] To achieve the above object, the present invention provides the following technical solution: A mechanical processing extrusion device for mining, comprising an extruder and a lower die detachably connected to the extruder, wherein an upper die is slidably connected to the extruder;

[0008] A slow-return mechanism, comprising a cavity opened in the lower die, a plurality of side sleeves being installed at equal intervals at the upper end of the lower die, the plurality of side sleeves being connected to the cavity respectively, a threaded disk being threadedly connected in each side sleeve respectively, a plurality of control sleeves being installed at equal intervals along the axis of the threaded disk, a slow-flow rod being coaxially arranged on each control sleeve, a connecting groove being opened in the slow-flow rod, and a plurality of control grooves connected to the connecting groove being opened at equal intervals on the side wall of each slow-flow rod, and the upper ends of the plurality of connecting grooves being connected to the side sleeves respectively; and

[0009] The ejection mechanism includes a forming groove and a limiting groove provided on the lower mold, a plurality of internal sleeves are fixedly installed in the forming groove, an ejection rod is slidably connected in each of the internal sleeves, a plurality of ventilation grooves are evenly spaced on the upper end surface of the internal sleeve, and the plurality of ventilation grooves are respectively connected to the upper and lower ends of the internal sleeve.

[0010] Preferably, the slow-return mechanism also includes a one-way disk installed on the plurality of slow-flow rods, and a fitting disk is coaxially installed in the side sleeve. When the hydraulic oil flows into the upper end space of the fitting disk through the control groove and the connecting groove, the one-way disk fits on the fitting disk. This design forms a change in resistance to the bidirectional flow of the hydraulic oil through the cooperation between the one-way disk and the fitting disk, allowing the hydraulic oil to flow quickly during forward extrusion and forming a slow flow during reverse demolding, thereby ensuring a smooth and controllable demolding process.

[0011] Preferably, a pressure rod is slidably connected in the side sleeve, a pressure plug is coaxially installed on the lower end of the pressure rod, and the pressure plug is sealingly connected in the side sleeve. Through the sealing sliding cooperation between the pressure rod and the pressure plug, reliable sealing and pressure transmission of the hydraulic system are achieved, ensuring the stability and reliability of the pressure.

[0012] Preferably, an adjustment groove is provided on the upper end surface of the pressure rod, a connecting rod is installed on the lower end surface of the pressure rod, and a connecting groove is provided on the upper end of the one-way disk. This structural design realizes the position adjustment of the flow-slowing rod and the control sleeve through the combination of the adjustment groove, the connecting rod and the connecting groove, which is convenient for the operator to adjust the parameters according to actual needs.

[0013] Preferably, a stop disk is coaxially installed on the outer wall of each of the slow-flow rods, a synchronization rod is coaxially installed on the one-way disk, a synchronization sleeve is installed on the threaded disk, the synchronization rod is slidably connected in the synchronization sleeve, a center rod is installed at the lower end of the synchronization rod, and a center frame is installed in the side sleeve, and the center rod is slidably connected in the center frame. Through this transmission mechanism design, synchronous movement and positioning between the components are achieved, thereby ensuring the coordination and stability of the operation of the entire system.

[0014] Preferably, a plurality of push springs are installed at the lower end of the one-way disk, the other ends of the push springs are connected to the synchronous sleeve, and a plurality of bidirectional holes are equally spaced on the synchronous sleeve. This design ensures the return reset of the one-way disk by providing a preload force through the push spring, and cooperates with the diversion function of the bidirectional hole to ensure the bidirectional flow of the hydraulic oil.

[0015] Preferably, the ejection mechanism further comprises a sealing groove provided in the inner sleeve, a sealing disk is coaxially mounted on the ejection rod, the sealing disk is slidably connected in the sealing groove, and a reliable sealing structure is formed through the cooperation between the sealing disk and the sealing groove, thereby preventing leakage of hydraulic oil and ensuring the working efficiency of the ejection mechanism.

[0016] Preferably, a tail ring is installed on each of the inner sleeves, and the tail ring abuts against the cavity. This structural design ensures a stable connection between the inner sleeve and the cavity through the positioning and sealing functions of the tail ring, thereby improving the sealing performance of the entire system.

[0017] Preferably, an energy storage tank is fixedly installed in the lower mold, the energy storage tank is connected in the cavity, and a top plate is coaxially installed on the upper end of the energy storage tank, a telescopic plate is slidably connected in the energy storage tank, and the telescopic plate is attached to the lower end surface of the top sleeve. Through the coordinated design of the energy storage tank and the telescopic plate, the storage and release functions of the system energy are realized, providing a stable power source for the demoulding process.

[0018] Preferably, a plurality of pressure springs are installed in the energy storage tank, and the plurality of pressure springs respectively abut against the telescopic disk. The uniform arrangement of the plurality of pressure springs provides a stable elastic supporting force for the telescopic disk, thereby ensuring the power supply of the energy storage system.

[0019] (III) Beneficial effects

[0020] Compared with the prior art, the present invention provides a mechanical processing extrusion device for mining, which has the following beneficial effects:

[0021] This device adopts a hydraulically driven demoulding mechanism, which realizes the smooth demoulding of the workpiece through the ingenious cooperation of energy storage and hydraulic transmission system. After the extrusion molding is completed, the energy storage device releases energy and drives the ejection mechanism through the hydraulic system to ensure that the workpiece can be evenly and stably separated from the mold, effectively solving the problem of difficult demoulding of workpieces in traditional equipment.

[0022] Through the innovative ejection mechanism and the adjustable control groove and connecting groove design, the pressure distribution during the demoulding process is achieved. In particular, by changing the opening number of the control groove, the flow resistance of the hydraulic oil can be flexibly adjusted, thereby achieving the distribution of the demoulding pressure and ensuring that the pressure is mainly transmitted to the demoulding side of the part.

[0023] Through the mechanical transmission design, the ejection system and the pressure release system are coordinated. When the upper mold starts to lift, the pressure released by the stored energy first acts on the ejection mechanism to ensure that the workpiece can be ejected first, and the subsequent pressure is used to drive the reset of other components. This step-by-step pressure release mechanism improves the reliability of demolding. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of a mechanical processing extrusion device for mining in the present invention;

[0025] Figure 2 It is a structural schematic diagram of the lower mold and the upper mold in the present invention;

[0026] Figure 3 It is a schematic cross-sectional structure diagram of the lower mold in the present invention;

[0027] Figure 4 It is a schematic cross-sectional structural diagram of the side cover in the present invention;

[0028] Figure 5 It is a cross-sectional structural schematic diagram of the synchronous sleeve in the present invention;

[0029] Figure 6 It is a schematic cross-sectional structural diagram of the one-way disc in the present invention;

[0030] Figure 7 It is a schematic cross-sectional structural diagram of the inner sleeve in the present invention;

[0031] Figure 8 It is a schematic diagram of the cross-sectional structure of the top plate and the energy storage tank in the present invention.

[0032] In the figure: 11, extruder; 12, lower die; 13, upper die; 21, cavity; 22, side sleeve; 23, threaded disk; 24, control sleeve; 25, slow flow rod; 26, connecting groove; 27, control groove; 28, one-way disk; 29, fitting disk; 31, forming groove; 32, limit groove; 33, inner sleeve; 34, ejector rod; 35, ventilation groove; 36, sealing groove; 37, sealing disk; 38, tail ring; 41, energy storage tank; 42, top disk; 43, telescopic disk; 44, pressure spring; 210, pressure rod; 211, pressure plug; 214, adjusting groove; 215, connecting rod; 216, connecting groove; 217, stop disk; 218, synchronization rod; 219, center rod; 220, center frame; 221, push spring; 222, two-way hole; 223, synchronization sleeve. DETAILED DESCRIPTION

[0033] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0034] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0035] In the present invention, unless otherwise specified, the directions used, such as "up" and "down", usually refer to the directions shown in the drawings, or to the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0036] See also Figures 1 to 8 A mechanical processing extrusion device for mining includes an extruder 11 and a lower die 12 detachably connected to the extruder 11, an upper die 13 is slidably connected to the extruder 11, and a slow return mechanism includes a cavity 21 opened in the lower die 12, a plurality of side sleeves 22 are evenly installed at the upper end of the lower die 12, and the plurality of side sleeves 22 are respectively connected to the cavity 21, and each side sleeve 22 is respectively threadedly connected with a threaded disk 23, and a plurality of control sleeves 24 are evenly installed along the axis of the threaded disk 23, each A slow-flow rod 25 is coaxially arranged on the control sleeve 24, a connecting groove 26 is provided in the slow-flow rod 25, and a plurality of control grooves 27 connected to the connecting groove 26 are evenly spaced on the side wall of each slow-flow rod 25, and the upper ends of the plurality of connecting grooves 26 are respectively connected to the side sleeve 22, and the slow-return mechanism also includes a one-way disk 28 installed on the plurality of slow-flow rods 25, and a fitting disk 29 is coaxially arranged in the side sleeve 22. When the hydraulic oil flows into the upper end space of the fitting disk 29 through the control groove 27 and the connecting groove 26, the one-way disk 28 is The one-way disc 28 is fitted on the fitting disc 29, a pressure rod 210 is slidably connected in the side sleeve 22, a pressure plug 211 is coaxially installed at the lower end of the pressure rod 210, and the pressure plug 211 is sealed and connected in the side sleeve 22, an adjustment groove 214 is provided on the upper end surface of the pressure rod 210, a connecting rod 215 is installed on the lower end surface of the pressure rod 210, a connecting groove 216 is provided on the upper end of the one-way disc 28, and a stop disc 217 is coaxially installed on the outer wall of each slow flow rod 25, and a stop disc 217 is coaxially installed on the one-way disc 28. A synchronization rod 218 is installed on the axis, a synchronization sleeve 223 is installed on the threaded disk 23, the synchronization rod 218 is slidably connected in the synchronization sleeve 223, a center rod 219 is installed at the lower end of the synchronization rod 218, and a center frame 220 is installed in the side sleeve 22, the center rod 219 is slidably connected in the center frame 220, a plurality of push springs 221 are installed at the lower end of the one-way disk 28, the other ends of the plurality of push springs 221 are connected to the synchronization sleeve 223, and a plurality of bidirectional holes 222 are opened on the synchronization sleeve 223 at equal intervals.

[0037] See also Figure 1 and Figure 2 When extruding mining machinery parts, first install the corresponding upper die 13 and lower die 12 according to the situation, and then place the corresponding plate in the limit groove 32 in the lower die 12. Figure 4 At this time, the pressure rod 210 is in the position of extending outward to the farthest extent, see Figure 7 , and the ejector rod 34 is also in an extended state. At this time, the extruder 11 is started to move the upper mold 13 downward accordingly, and when the upper mold 13 presses on the plate, multiple pressure rods 210 also abut against the upper mold 13, and then continue to move downward. At this time, the plate will be squeezed into the forming groove 31 under the action of the pressure of the upper mold 13, and the multiple pressure rods 210 will be driven to move downward synchronously. As the pressure rod 210 moves downward, the pressure plug 211 will discharge the hydraulic oil at the lower end, and the one-way disk 28 will release the seal between the fitting disk 29, so that the hydraulic oil can be discharged until the plate is deformed in the forming groove 31 and then the plate abuts against the ejector rod 34. At this time, further downward movement will cause the pressure rod 210 and the top rod to move downward synchronously. Since the cavity 21 is filled with hydraulic oil, please refer to Figure 8 As it moves downward, the hydraulic oil will squeeze the telescopic disk 43 downward. Since the liquid is incompressible, all the compression becomes the compression of the telescopic disk 43. Then the pressure spring 44 is compressed, and the compressed energy is stored in the pressure spring 44 until the sheet material hits the forming groove 31, thereby completing the extrusion process.

[0038] After the extrusion molding is completed, the upper mold 13 moves upward to release the connection. At this time, the energy stored in the pressure spring 44 is released, and then the telescopic disk 43 is pushed to give the hydraulic oil reverse pressure. Then the hydraulic oil will apply pressure to the side sleeve 22 and the inner sleeve 33 respectively. When the sealing disk 37 is under pressure, it will drive the ejector rod 34 to move upward, and then push the molded part out of the molding groove 31, thereby completing the part demoulding process. Please refer to Figure 4 , because the hydraulic oil is synchronously applied to the side sleeve 22 and the inner sleeve 33, when the pressure is applied to the side sleeve 22, it first flows into the space of the one-way disc 28 through the two-way hole 222, and then the one-way disc 28 is pressurized and sealed with the fitting disc 29, please refer to Figure 6 At this time, the hydraulic oil can only pass through the one-way disk 28 through the control groove 27 and the connecting groove 26, and then flow into the gap between the fitting disk 29 and the pressure plug 211. Since the diameter of the control groove 27 is very small, it will encounter great resistance when flowing in the reverse direction. By changing the relative position of the control sleeve 24, the control sleeve 24 can be connected to the slow-flow rod 25 to close the control groove 27. Therefore, the opening amount of the control groove 27 can be changed, and the resistance to reverse flow will also be changed. Due to the great flow resistance, the hydraulic oil passing through the connecting groove 26 is very slow. Therefore, the pressure applied by the pressure spring 44 will first be mainly transmitted to the sealing disk 37, and then the ejection rod 34 will eject the parts. After the ejection is completed, the pressure rod 210 is still in a slow return stroke, thereby ensuring the continuity of the ejection and the resetting of the pressure rod 210.

[0039] When it is necessary to adjust the flow resistance through the connecting groove 26, refer to Figure 4 and Figure 5First, insert the external wrench into the adjustment groove 214, and then press the pressure rod 210 downward so that the connecting rod 215 at the lower end is inserted into the connecting groove 216. At this time, turning the wrench can drive the one-way disk 28 and the synchronization rod 218 to rotate. Since the synchronization sleeve 223 is slidably connected to the synchronization rod 218, the threaded disk 23 will rotate synchronously. Since the threaded disk 23 is threadedly connected to the side sleeve 22, it will move up and down, and then the position between the control sleeve 24 and the slow flow rod 25 will be changed. Therefore, different numbers of control grooves 27 can be closed, thereby changing the slow flow resistance. By changing the slow flow resistance, the reset time of the pressure rod 210 can be controlled, so more pressure will be used on the ejection rod 34 to eject the parts, thereby completing the adjustment process.

[0040] See also Figure 3 and Figure 7 The ejection mechanism includes a molding groove 31 and a limiting groove 32 provided on the lower mold 12. A plurality of internal sleeves 33 are fixedly installed in the molding groove 31. An ejection rod 34 is slidably connected in each internal sleeve 33. A plurality of ventilation grooves 35 are evenly spaced on the upper end surface of the internal sleeve 33, and the plurality of ventilation grooves 35 are respectively connected to the upper and lower ends of the internal sleeve 33. The ejection mechanism also includes a sealing groove 36 provided in the internal sleeve 33. A sealing disk 37 is coaxially installed on the ejection rod 34. The sealing disk 37 is slidably connected to the ejection rod 34. It is connected to the sealing groove 36, and a tail ring 38 is installed on each internal sleeve 33, which abuts against the cavity 21. An energy storage tank 41 is fixedly installed in the lower mold 12, and the energy storage tank 41 is connected to the cavity 21. A top plate 42 is coaxially installed on the upper end of the energy storage tank 41, and a telescopic plate 43 is slidably connected in the energy storage tank 41, and the telescopic plate 43 is attached to the lower end surface of the top plate 42. A plurality of pressure springs 44 are installed in the energy storage tank 41, and the plurality of pressure springs 44 abut against the telescopic plate 43 respectively.

[0041] When the ejection of the part is completed, the pressure spring 44 still has pressure, and then the pressure will continue to be transmitted to the side sleeve 22, and the return stroke of the pressure rod 210 is guaranteed by the pressure. When the return stroke is completed, the telescopic disk 43 is in contact with the top disk 42, completing the whole process. At this time, the pressure spring 44 is still in a compressed state, thereby ensuring the ejection pressure adaptation, and then the next extrusion process can be carried out.

[0042] In all the schemes mentioned above, the connection between two parts can be selected according to actual conditions by welding, bolt and nut matching connection, bolt or screw connection or other well-known connection methods, which will not be described one by one here. In the above, all fixed connections are preferably welded. Although the embodiments of the present invention have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A mechanical processing extrusion device for mining, comprising an extruder (11) and a lower die (12) detachably connected to the extruder (11), wherein an upper die (13) is slidably connected to the extruder (11); The slow return mechanism is characterized by: The invention comprises a cavity (21) provided in the lower mold (12), a plurality of side sleeves (22) being installed at equal intervals on the upper end of the lower mold (12), the plurality of side sleeves (22) being connected to the cavity (21), each of the side sleeves (22) being threadedly connected to a threaded disk (23), a plurality of control sleeves (24) being installed at equal intervals along the axis of the threaded disk (23), each of the control sleeves (24) being coaxially provided with a slow flow rod (25), a connecting groove (26) being provided in the slow flow rod (25), and a side wall of each of the slow flow rods (25) being provided with equal intervals. A plurality of control grooves (27) connected to the connecting groove (26), the upper ends of the plurality of connecting grooves (26) are respectively connected to the side sleeve (22), the slow return mechanism further comprises a one-way disk (28) mounted on the plurality of slow flow rods (25), a fitting disk (29) is coaxially mounted in the side sleeve (22), when hydraulic oil flows into the upper end space of the fitting disk (29) through the control groove (27) and the connecting groove (26), the one-way disk (28) fits on the fitting disk (29), and a pressure rod (210) is slidably connected in the side sleeve (22) A pressurizing plug (211) is coaxially mounted on the lower end of the pressurizing rod (210), the pressurizing plug (211) is sealed and connected to the side sleeve (22), an adjusting groove (214) is provided on the upper end surface of the pressurizing rod (210), a connecting rod (215) is installed on the lower end surface of the pressurizing rod (210), a connecting groove (216) is provided on the upper end of the one-way disk (28), a stop disk (217) is coaxially mounted on the outer wall of each of the slow-flow rods (25), a synchronization rod (218) is coaxially mounted on the one-way disk (28), and a threaded disk (23) is provided on the upper end surface of the one-way disk (28). A synchronization sleeve (223) is installed, the synchronization rod (218) is slidably connected in the synchronization sleeve (223), a center rod (219) is installed at the lower end of the synchronization rod (218), and a center frame (220) is installed in the side sleeve (22), the center rod (219) is slidably connected in the center frame (220), a plurality of push springs (221) are installed at the lower end of the one-way disk (28), the other ends of the plurality of push springs (221) are connected to the synchronization sleeve (223), and a plurality of bidirectional holes (222) are opened on the synchronization sleeve (223) at equal intervals; and The ejection mechanism comprises a forming groove (31) and a limiting groove (32) provided on the lower mold (12); a plurality of internal sleeves (33) are fixedly installed in the forming groove (31); an ejection rod (34) is slidably connected in each of the internal sleeves (33); a plurality of ventilation grooves (35) are evenly spaced on the upper end surface of the internal sleeve (33); and the plurality of ventilation grooves (35) are respectively connected to the upper and lower ends of the internal sleeve (33); the ejection mechanism further comprises a sealing groove (36) provided in the internal sleeve (33); a sealing disk (37) is coaxially installed on the ejection rod (34); the sealing disk (37) is slidably connected in the sealing groove (36); and a tail ring (38) is installed on each of the internal sleeves (33); the tail ring (38) abuts against the cavity (21).

2. The mining mechanical processing extrusion device according to claim 1 is characterized in that: An energy storage tank (41) is fixedly installed in the lower mold (12), the energy storage tank (41) is connected to the cavity (21), and a top plate (42) is coaxially installed on the upper end of the energy storage tank (41), a telescopic plate (43) is slidably connected in the energy storage tank (41), and the telescopic plate (43) is attached to the lower end surface of the top plate (42).

3. The mining mechanical processing extrusion device according to claim 2 is characterized in that: A plurality of pressure springs (44) are installed in the energy storage tank (41), and the plurality of pressure springs (44) respectively abut against the telescopic disc (43).

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