A graphite packing ring preparation device and method

Abstract

The invention discloses a graphite packing ring preparation device and method, belonging to the technical field of graphite packing ring extrusion production equipment, the preparation device comprises: a mold cavity; an upper mold, which is arranged above the mold cavity and moves in a vertical direction and is coaxially arranged with the mold cavity; a lower mold, which is arranged below the mold cavity and moves in a vertical direction and is coaxially arranged with the mold cavity; a clamping assembly, comprising two groups relatively arranged on both sides of the mold cavity and arranged at the upper end of the mold cavity; a first groove is coaxially arranged at the upper end of the lower mold, and a movable part is vertically lifted and lowered at the bottom of the first groove, and the movable part is provided with a positioning rod, and the positioning rod is configured to switch from a released state to a locked state when the movable part is lifted. The method adopts the preparation device to prepare the graphite packing ring, and the upper mold, the lower mold, the mold cavity, the clamping assembly, the positioning rod arranged at the lower mold and the winding column cooperate to facilitate demolding of the pressed blank and improve the working efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of graphite packing ring extrusion production equipment, and in particular to a graphite packing ring preparation device and method. Background Art

[0002] Graphite packing rings are commonly used seals. At present, the common production method of graphite packing rings is: use graphite paper to wrap the blank, then remove the blank and place it on the mold, and use a hydraulic press to extrude it into shape. During the production process, it mainly relies on the upper and lower molds to cooperate in positioning and extrusion.

[0003] Since it is extrusion molding, the formed graphite filler ring needs to be removed from the mold after extrusion, so the mold needs to be equipped with a push mechanism to facilitate mold removal. The mold structure is complex, and the use of graphite paper to prepare the ingredients and the extrusion molding equipment is a separate discontinuous operation, and the production efficiency is not high. Summary of the invention

[0004] The object of the present invention is to solve the above problems and provide a graphite packing ring preparation device and method.

[0005] To achieve the above object, the technical solution of the present invention is: a graphite packing ring preparation device, comprising:

[0006] Mould cavity;

[0007] The upper mold is arranged above the mold cavity for vertical movement and is coaxial with the mold cavity;

[0008] The lower mold is arranged below the mold cavity for vertical movement and is coaxial with the mold cavity;

[0009] The clamping assembly includes two groups arranged on both sides of the mold cavity and arranged at the upper end of the mold cavity;

[0010] A first groove is coaxially arranged at the upper end of the lower mold, and a movable part is vertically lifted and lowered at the bottom of the first groove. The movable part is equipped with a positioning rod, and the positioning rod is configured to switch from a released state to a locked state when the movable part is lifted.

[0011] Furthermore, a second groove is provided at the bottom of the first groove, the movable part is guided and cooperated with the second groove, an insertion cavity is axially provided at the upper end of the movable part, at least one radial channel is provided on the side wall of the insertion cavity, the positioning rod is guided in the radial channel, and a first positioning groove is provided on the side wall of the second groove corresponding to the positioning rod.

[0012] Further, the second groove is a columnar groove, the movable member is provided with a columnar segment which cooperates with the guide of the columnar groove, and the first positioning groove is an annular groove.

[0013] Furthermore, a guide hole is coaxially arranged at the bottom of the second groove, the movable part comprises a columnar body which cooperates with the guide hole for guiding, and a fourth power telescopic part is arranged below the lower mold, and the fourth power telescopic part is drivingly connected to the movable part.

[0014] Furthermore, it also includes: a winding column, including a positioning plate, a main body and a plug-in column coaxially arranged on opposite sides of the positioning plate, the plug-in column is plugged into the plug-in cavity, and the outer peripheral surface of the plug-in column is provided with a second positioning groove that cooperates with the positioning rod, the first groove is positioned and cooperated with the positioning plate, and the depth of the first groove is equal to the thickness of the positioning plate.

[0015] Furthermore, a conical surface is coaxially arranged on one side of the positioning plate close to the positioning post.

[0016] Furthermore, it also includes:

[0017] A winding unit is spaced apart from the extrusion unit and is used for winding the strip-shaped graphite piece onto the winding column;

[0018] The first transport unit comprises a vertical plate movably arranged between the winding unit and the extrusion unit, and at least two transport members movably arranged on the vertical plate along the vertical direction. The two transport members are arranged at intervals along the horizontal direction, and the transport members are used to fix the winding column.

[0019] Furthermore, the transport member includes a vertically arranged guide cavity and an electromagnet arranged at the upper end of the guide cavity. The winding column is plugged into and matched with the guide cavity, and the winding column is made of magnetic material.

[0020] Furthermore, the winding unit comprises:

[0021] A carrying plate, used for placing and positioning the winding column, and arranged to move horizontally along a first direction;

[0022] The top is set above the material tray;

[0023] A lifting rod is located below the material tray and is coaxial with the top, and is lifted and lowered in the vertical direction;

[0024] The driving device is connected to the lifting rod and is used to drive the lifting rod to rotate around its axis.

[0025] Furthermore, the present invention also provides a method for preparing a graphite packing ring, which is carried out using any of the above-mentioned graphite packing ring preparation devices, and comprises the following steps:

[0026] Step 1: The movable part is in the initial state, and the winding column formed by winding the blank is placed on the lower mold; the outer radius of the blank is greater than the radius of the winding column positioning plate;

[0027] Step 2: The lower die moves upward into the die cavity, the upper die descends into the die cavity, and the upper and lower dies apply force to extrude the blank;

[0028] Step 3: The upper mold and the lower mold rise synchronously. When the lower surface of the positioning plate is flush with the upper end of the mold cavity, the lower mold stops moving and the upper mold continues to rise;

[0029] Step 4: The clamping assembly works to support and position the lower end of the extruded billet;

[0030] Step 5: Switch the positioning rod to the positioning state to position the winding column;

[0031] Step 6: The lower die descends, pulling the winding column to move and separate from the extruded billet.

[0032] Compared with the prior art, the graphite packing ring preparation device and method disclosed in the present invention have the following beneficial effects: through the coordination of the upper die, the lower die, the die cavity, the clamping assembly, the positioning rod and the winding column arranged on the lower die, it is convenient to demold the pressed blank and improve the working efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 The figure is a schematic diagram of the overall structure of a graphite packing ring preparation device of the present invention.

[0034] Figure 2 The present invention is a schematic diagram of the structure of a graphite packing ring preparation device viewed from above.

[0035] Figure 3 The figure is a side structural schematic diagram of a graphite packing ring preparation device of the present invention.

[0036] Figure 4 The present invention is a schematic structural diagram of a graphite packing ring preparation device hiding a second support plate.

[0037] Figure 5 for Figure 4 The schematic diagram of the local enlarged structure of point B in the present invention is shown.

[0038] Figure 6 The present invention is a schematic diagram of the internal structure of a transport member in a graphite packing ring preparation device.

[0039] Figure 7 The present invention is a schematic diagram of the structure of a clamping assembly in a graphite packing ring preparation device.

[0040] Figure 8 for Figure 3 The figure shows a schematic cross-sectional structure diagram of the graphite packing ring preparation device at AA of the present invention.

[0041] Fig. 9 for Figure 8The diagram shown is a partial enlarged structural schematic diagram of position C in a graphite packing ring preparation device of the present invention.

[0042] Fig.10 for Fig. 9 The diagram shows a partially enlarged structural diagram of the C-1 portion of a graphite packing ring preparation device of the present invention.

[0043] Fig.11 The present invention is a schematic diagram of the structure of a winding column in a graphite packing ring preparation device.

[0044] Fig.12 The present invention is a schematic structural diagram of a graphite packing ring preparation device in which graphite paper is wound outside a winding column to form a blank.

[0045] Fig.13 The present invention is a schematic structural diagram of a hidden extrusion unit of a graphite packing ring preparation device.

[0046] Fig.14 for Fig.13 The diagram shown is a schematic diagram of the partially enlarged structure at position D in a graphite packing ring preparation device of the present invention.

[0047] Fig.15 The present invention is a schematic structural diagram of a winding unit in a graphite packing ring preparation device.

[0048] Fig.16 The present invention is a schematic structural diagram of a winding unit hiding a material disk in a graphite packing ring preparation device.

[0049] Fig.17 The diagram is a schematic diagram of the upward structure when the winding unit in the graphite packing ring preparation device of the present invention hides the material tray.

[0050] Fig.18 The figure is a schematic diagram of the structure of the second transport unit in a graphite packing ring preparation device of the present invention.

[0051] Fig.19 The present invention is a schematic diagram of the matching structure of a material tray and a carrier plate in a graphite packing ring preparation device.

[0052] Fig. 20 The diagram is a partial structural diagram of a winding unit in a graphite packing ring preparation device of the present invention.

[0053] Fig.21 for Fig. 20 The schematic diagram of the local enlarged structure at E in the present invention is shown.

[0054] Fig. 22 The present invention is a schematic diagram of the cross-sectional structure of a conveying roller group in a graphite packing ring preparation device.

[0055] Fig.23The present invention is a schematic diagram of the structure of a winding and cutting unit in a graphite packing ring preparation device.

[0056] In the figure: 1, first support plate; 10, strip hole; 2, extrusion unit; 21, first telescopic rod; 210, upper die; 22, second support plate; 220, die cavity; 23, pusher assembly; 24, clamping assembly; 240, third telescopic rod; 241, clamping head; 25, second telescopic rod; 250, piston rod; 2501, installation cavity; 26, lower die; 260, movable part; 2601, plug-in cavity; 2602, radial channel; 261, first slot; 262, second slot; 2620, first positioning slot; 263, first compression spring; 264, fourth power extension retractable part; 265, positioning rod; 3, first handling unit; 31, first lead screw; 32, first guide rod; 33, vertical plate; 34, second guide rod; 35, second lead screw; 36, moving part; 37, handling part; 370, guide cavity; 371, electromagnet; 4, winding unit; 41, bearing plate; 410, support sleeve; 411, bearing plate; 4110, channel; 412, sixth guide rod; 413, second compression spring; 414, limit plate; 415, transmission sleeve; 42, winding assembly; 420, material tray; 421, third support plate; 4210, first Four supporting plates; 423, centering roller group; 425, moving frame; 4251, seventh guide rod; 4252, linear drive; 426, extrusion roller group; 4260, first roller frame; 4261, first extrusion roller; 4262, second extrusion roller; 427, driving roller group; 4271, first driving roller; 42710, flow channel; 42711, glue outlet hole; 4272, second driving roller; 4273, second roller frame; 4275, sixth servo motor; 428, top; 43, lifting assembly; 431, fixed plate; 432, third guide rod; 433, lifting Lowering plate; 434, lifting rod; 435, first servo motor; 436, fourth guide rod; 437, fourth lead screw; 438, fourth lead screw nut; 439, second servo motor; 440, fifth lead screw; 441, fifth guide rod; 442, fifth servo motor; 45, fifth telescopic rod; 450, cutter; 451, first plate; 46, sixth telescopic rod; 460, matching groove; 461, second plate; 5, winding column; 51, column; 52, positioning plate; 53, plug-in column; 54, conical surface; 55, second positioning groove; 6, blank; 61, graphite paper. DETAILED DESCRIPTION

[0057] The present invention will now be described in further detail with reference to the accompanying drawings. The accompanying drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and thus only show the components related to the present invention.

[0058] Embodiment 1

[0059] Please refer to Figure 1-12 As a specific embodiment, the technical solution of the present invention is: a graphite packing ring preparation device, including an extrusion unit 2, the extrusion unit includes:

[0060] Mould cavity 220;

[0061] The upper mold 210 is disposed above the mold cavity 220 and is coaxially disposed with the mold cavity 220 so as to move in the vertical direction; the lower mold 26 is disposed below the mold cavity 220 and is coaxially disposed with the mold cavity 220 so as to move in the vertical direction;

[0062] The clamping assembly 24 includes two groups disposed on opposite sides of the mold cavity 220 and disposed at the upper end of the mold cavity 220;

[0063] A first groove 261 is coaxially arranged at the upper end of the lower mold 26, and a movable part 260 is vertically lifted and lowered at the bottom of the first groove 261. The movable part 260 is equipped with a positioning rod 265, and the positioning rod 265 is configured to switch from a released state to a locked state when the movable part 260 is lifted.

[0064] Specifically, the specific structure of the Yang Zong graphite packing ring provided in the present application is: it includes a horizontally arranged first support plate 1, a second support plate 22 arranged above the first support plate 1 at an interval, and a first telescopic rod 21 arranged above the second support plate 22, an upper mold 210 is arranged at the lower end of the first telescopic rod 21, a mold cavity 220 is arranged in the middle area of ​​the second support plate 22, and a clamping assembly 24 is arranged on the upper surface of the second support plate 22, and two are arranged relatively.

[0065] refer to Figure 7 As a specific implementation, the clamping assembly 24 includes a clamping head 241 that is slidably matched with the upper surface of the second support plate 22 and a third telescopic rod 240 that is telescopically arranged along the radial direction of the mold cavity 220. The head of the clamping head 241 is an arc-shaped structure that is adapted to the outer peripheral surface of the positioning plate 52. The radius of the arc is slightly larger than the radius of the outer peripheral surface of the positioning plate 52, so that it is easy to adapt to the positioning plate 52 when it is in a clamping state, and then clamp the positioning plate 52. On one side different from the two clamping assemblies 24, a material pushing assembly 23 is arranged perpendicular to the telescopic direction of the clamping assembly 24, wherein the material pushing assembly 23 includes a telescopic rod that is the same as the third telescopic rod 240, and a push plate is arranged at the end, which is used to push the material above the clamping head 241 and detach it from the top of the clamping head 241.

[0066] Further, a second telescopic rod 25 is provided below the first support plate 1, and a lower mold 26 is provided at the upper end of the piston rod 250 of the second telescopic rod 25. Figure 8 , Fig. 9The lower die 26 is a cylindrical structure, and is inserted into the mold cavity 220 for sliding guidance. The upper surface of the lower die 26 is coaxially provided with a first groove 261. The lower die 26 is provided with a movable part 260 and a locking rod. Fig. 9 , which is a schematic diagram of the state when the movable member 260 and the locking rod are in the initial state. At this time, when the winding column 5 is installed in the lower mold 26, the positioning plate 52 is set in the first groove 261 and the lower surface abuts against the upper surface of the movable member 260. At this time, the upper surface of the positioning plate 52 is flush with the upper surface of the lower mold 26. Fig.12 When the blank 6 formed by the graphite paper 61 is wound around the outer circumference of the winding column 5, the outer diameter of the blank 6 is greater than the radius of the positioning plate 52 and is equal to or slightly smaller than the radius of the lower die 26. With this arrangement, when the blank 6 is pressed and extruded, the second telescopic rod 25 is extended to push the winding column 5, the blank 6 and the lower die 26 into the die cavity 220, and the first telescopic rod 21 is also extended to push the upper die 210 into the die cavity 220, and the outer circumference of the upper die 210 is also in sliding engagement with the guide inner circumference of the die cavity 220. The blank 6 is extruded by extending the first telescopic rod 21 and the second telescopic rod 25. After extrusion molding, the first telescopic rod 21 retracts and the second telescopic rod 25 extends to push the winding column 5 out of the mold cavity 220. When the upper end surface of the lower mold 26 is flush with the upper surface of the second support plate 22, the second telescopic rod 25 stops extending and the first telescopic rod 21 continues to retract, so that the upper mold 210 and the lower mold 26 are at a safe distance. Then the movable member 260 moves upward from the initial state to the state of releasing the winding column 5. The state is switched to the state of locking the winding column 5, and the winding column 5 is pushed to move synchronously upward for a certain distance, and the current state is maintained. Then, the locking component is controlled to work, and the clamping head 241 extends into the lower part of the extruded blank 6, and the movement distance of the clamping head 241 is controlled so that the clamping head 241 does not directly contact the outer peripheral surface of the positioning plate 52. At this time, the clamping head 241 can support and position the material above; the state of the movable part 260 is maintained, and the second telescopic rod 25 is controlled to retract, and the winding column 5 is pulled downward to separate the material from the winding column 5 under the action of the pulling force. After separation, the pushing component 23 works to push the material staying above the clamping head 241 away from the upper end of the mold cavity 220, and then the clamping component 24 retracts to the initial position that does not block the mold cavity 220, and the second telescopic rod 25 returns to the initial state, and then the movable part 260 returns to the initial state, the winding column 5 is released, and then the winding column 5 wrapped with the blank 6 is replaced with the winding column 5 on the lower mold 26 to perform the next extrusion operation. The present application facilitates demolding of the pressed blank 6 and improves operating efficiency by cooperating the upper die 210, the lower die 26, the die cavity 220, the clamping assembly 24, the positioning rod 265 provided on the lower die 26 and the winding column 5.

[0067] Specifically, the first telescopic rod 21, the second telescopic rod 25, and the third telescopic rod 240 can all be any one of a hydraulic telescopic rod, an electric telescopic rod, and a pneumatic telescopic rod. The first telescopic rod 21 and the second telescopic rod 25 are preferably hydraulic telescopic rods, and the third telescopic rod 240 is preferably a pneumatic telescopic rod.

[0068] Further, as a specific implementation method, refer to Figure 8-Figure 10 A second groove 262 is provided at the bottom of the first groove 261, the movable part 260 is guided and matched with the second groove 262, an inserting cavity 2601 is axially provided at the upper end of the movable part 260, at least one radial channel 2602 is provided on the side wall of the inserting cavity 2601, the positioning rod 265 is guided and provided in the radial channel 2602, and a first positioning groove 2620 is provided on the side wall of the second groove 262 corresponding to the positioning rod 265.

[0069] Specifically, the first groove 261 is a blind groove, and the second groove 262 is a blind groove with a radius smaller than that of the first groove 261. The movable member 260 is arranged in the second blind groove. When the movable member 260 is in the initial state, it cooperates with the bottom surface support limit of the second blind groove, so as to provide more sufficient support force for the upper winding column 5, which is convenient for the extrusion operation. The winding column 5 includes a plug-in column 53 arranged on the positioning plate 52, and a second positioning groove 55 is arranged on the outer peripheral surface of the plug-in column 53. In the initial state, the end of the radial channel 2602 corresponds to the first positioning groove 2620, and the plug-in column 53 is plugged into the plug-in cavity 26 01, the second positioning groove 55 corresponds to the radial channel 2602, and the length of the positioning rod 265 is equal to the sum of the length of the radial channel 2602 and the depth of the first positioning groove 2620. At this time, the positioning rod 265 will not position the plug-in rod. When the movable part 260 rises, the radial channel 2602 and the first positioning groove 2620 are staggered. At this time, under the push of the side wall of the first groove 261, the end of the positioning rod 265 can be inserted into the second groove 262, so as to position the plug-in rod, thereby switching to the locked state, thereby realizing the state switching. The structure of the switching component is simple and the locking is reliable.

[0070] Further, as a preferred embodiment, the second groove 262 is a columnar groove, the movable member 260 is provided with a columnar segment that cooperates with the columnar groove guide, and the first positioning groove 2620 is an annular groove. Specifically, the second groove 262 and the first groove 261 are both provided as columnar grooves, so that the first positioning groove 2620 can be provided as an annular groove, and the annular groove can eliminate the angle restriction of the movable member 260, and the work is more reliable.

[0071] Further, as a specific implementation, a guide hole is coaxially arranged at the bottom of the second groove 262, the movable member 260 includes a columnar body that cooperates with the guide hole, and a fourth power telescopic member 264 is arranged below the lower mold 26, and the fourth power telescopic member 264 is drivingly connected to the movable member 260. Specifically, refer to Fig. 9 The lower mold 26 is threadedly connected to the piston rod 250 of the second power telescopic rod, and an installation cavity 2501 is arranged in the piston rod 250. The fourth power telescopic rod is arranged at the bottom of the installation cavity 2501. The movable part 260 includes a columnar body, and the columnar body is guided and matched with the guide hole. The upper end of the fourth power telescopic rod is connected with the lower end of the movable part 260, wherein the fourth power telescopic rod is preferably an electric telescopic rod, which has high control accuracy and can accurately control the displacement of the movable part 260. A hydraulic telescopic rod can also be selected. As a preferred embodiment, a limit plate 414 is arranged at the lower end of the columnar body of the movable part 260, and a first compression spring 263 is arranged between the limit plate 414 and the lower mold 26. By arranging the first compression spring 263, a return elastic force can be provided to the movable part 260 to ensure that the movable part 260 returns synchronously when the fourth power telescopic rod is retracted.

[0072] Further, refer to Fig.11 , Fig.12 The present application also includes: a winding column 5, including a positioning disk 52, a main body and a plug-in column 53 coaxially arranged on opposite sides of the positioning disk 52, the plug-in column 53 is plugged into the plug-in cavity 2601, and the outer peripheral surface of the plug-in column 53 is provided with a second positioning groove 55 that cooperates with the positioning rod 265, the first groove 261 is positioned and matched with the positioning disk 52, and the depth of the first groove 261 is equal to the thickness of the positioning disk 52.

[0073] Further, as a preferred embodiment, a conical surface 54 is coaxially arranged on one side of the positioning plate 52 close to the positioning post. Fig. 9 , Fig.11 , Fig.12 By setting a conical surface 54 on the positioning plate 52, and setting a matching conical surface 54 adapted to the conical surface 54 at the bottom of the first groove 261, through this setting method, the winding column 5 is conveniently centered through the guiding cooperation of the conical surface 54 and the matching conical surface 54, and by setting the conical surface 54, when the graphite paper 61 is subsequently wound around the circumference of the winding column 5, the conical surface 54 can be aligned with the second matching conical surface 54 in the supporting plate 41, thereby increasing the contact area and ensuring the friction between the second matching conical surface 54 and the conical surface 54, thereby ensuring that the supporting plate 41 effectively drives the winding column 5 to rotate around the axis to wind the graphite paper 61.

[0074] Embodiment 2

[0075] To further improve the working efficiency of the packing ring preparation device, please refer to Figure 13-22The present invention provides a graphite packing ring preparation device, which, as a further improvement, differs from the first embodiment in that it also includes:

[0076] A winding unit, arranged at a distance from the extrusion unit 2, and used for winding the strip-shaped graphite piece onto the winding column 5;

[0077] The first transport unit 3 includes a vertical plate 33 movably disposed between the winding unit and the extrusion unit 2 , and at least two transport members 37 movably disposed on the vertical plate 33 in the vertical direction. The two transport members 37 are spaced apart in the horizontal direction, and the transport members 37 are used to fix the winding column 5 .

[0078] Specifically, refer to Figure 1The first transport unit 3 is arranged on the upper surface of the first support plate 1, and includes a first lead screw 31 and a first guide rod 32 arranged in parallel and at intervals. The first lead screw 31 and the first guide rod 32 are respectively provided with a first lead screw 31 nut and a first sliding member. The vertical plate 33 is connected with the first lead screw 31 nut and the first sliding member. A second guide rod 34 and a second lead screw 35 are vertically arranged on the vertical plate 33. The second lead screw 35 is provided with a second lead screw nut. The second guide rod 34 is provided with a second sliding member. A moving member 36 is provided on the first lead screw nut and the second sliding member. The two The transporting member 37 is arranged at intervals on the moving member 36. Through the above arrangement, the transporting member 37 can be driven to move in the horizontal direction by driving the first lead screw 31, and the transporting member 37 can be driven to move in the vertical direction by driving the second lead screw 35. The winding unit 4 is arranged at the other end of the first transporting unit 3. Through this arrangement, the transporting member 37 can fix the column 51 of the winding column 5 so as to transport the column 51 between the first mold and the winding unit 4. At the beginning of the work, the winding unit 4 first winds the winding column 5 to form a blank 6, and then forms a blank. After the blank 6 is formed, a section of the column 51 of the winding column 5 is left, and the transport member 37 is controlled to move up, down, left, and right so that the transport member 37 fixes the upper end of the column 51, and then moves upward to lift the winding column 5 and transport it to the top of the lower die 26. Then the transport member 37 falls and inserts the winding column 5 into the lower die 26. Then the transport member 37 is controlled to leave the top of the lower die 26, and the extrusion unit 2 is controlled to work to extrude the blank 6. In this process, a new winding column 5 is installed on the winding unit 4 for winding to form the blank 6. After the extrusion of the extrusion unit 2 is completed, the lower die 26 returns to the initial state. The first conveying unit 3 is at the starting position, and a conveying member 37 of the first conveying unit 3 is controlled to fix and convey the winding column 5 on the lower mold 26 to the winding unit 4, and the two conveying members 37 cooperate with each other to exchange with the winding column 5 on the winding unit 4, and the winding column 5 on the winding unit 4 is removed, and the winding column 5 conveyed by the extrusion unit 2 is placed on the winding unit 4 for winding operation, and then returns to the extrusion unit 2 to place the winding column 5 wrapped with the blank on the lower mold 26 for extrusion operation, and the operation is repeated continuously in this way. Through the above-mentioned setting method, the operating efficiency of the device can be effectively improved.

[0079] Further, as a specific implementation, the specific structure of the transport member 37 is as follows: Figure 6The transport member 37 includes a vertically arranged guide cavity 370 and an electromagnet 371 arranged at the upper end of the guide cavity 370. The winding column 5 is guided and plugged into the guide cavity 370, and the winding column 5 is made of magnetic material. Specifically, the transport member 37 includes a guide cavity 370 and an electromagnet 371 vertically arranged on the moving member 36. The column 51 of the winding column 5 is made of a material that can cooperate with the magnetic attraction of a magnet, preferably steel. A permanent magnet can also be set at the end of the column 51. By setting the electromagnet 371, when the winding column 5 is transported, the guide cavity 370 is moved to the top of the winding column 5, and then the transport member 37 is controlled to fall. At this time, the column 51 of the winding column 5 is inserted into the guide cavity 370, and then the electromagnet 371 is controlled to be energized to magnetically attract the upper end of the column 51 to achieve a fixing effect. When the transport member 37 needs to be separated and released from the winding column 5, the electromagnet 371 is demagnetized, and the transport member 37 moves vertically upward. It can be explained that since graphite has excellent lubricity, graphite powder will adhere to the column 51, so that the excellent lubricity between the guide cavity 370 and the column 51 can be guaranteed, and the guide cavity 370 and the column 51 can be effectively separated under their own weight.

[0080] As a preferred embodiment, a permanent magnet is provided at the upper end of the winding column 5. On the one hand, it can improve the firmness of the handling member 37 fixing the winding column 5. On the other hand, when the handling member 37 releases the winding column 5, the through hole controls the change of the magnetic pole of the electromagnet 371, and the electromagnet 371 and the permanent magnet on the winding column 5 generate a magnetic repulsive force, which is more conducive to the separation of the winding column 5 and the handling member 37.

[0081] Further, as a specific implementation method, refer to Figure 13-Figure 22 , the winding unit 4 comprises:

[0082] The carrier plate 41 is used to place and position the winding column 5 and is arranged to move horizontally along a first direction;

[0083] The top 428 is disposed above the material tray 420;

[0084] The lifting rod 434 is located below the material tray 420 and is coaxial with the top 428, and is arranged to rise and fall in the vertical direction;

[0085] The driving device is connected to the lifting rod 434 and is used to drive the lifting rod 434 to rotate around its axis.

[0086] Specifically, a fifth guide rod 441 and a fifth lead screw 440 are arranged on one side of the first lead screw 31 and are spaced apart from and parallel to the first lead screw 31. Similarly, a fifth lead screw 440 nut and a fifth sliding member are arranged on the fifth guide rod 441 and the fifth lead screw 440, and a supporting plate 411 is horizontally arranged on the fifth lead screw nut and the fifth lead screw 440; the supporting plate 41 is vertically guided and arranged on the supporting plate 411, wherein the upper surface of the supporting plate 41 is provided with a receiving groove similar to the structure of the first groove 261 of the lower mold 26, and the bottom of the receiving groove is provided with a plug-in groove adapted to the plug-in column 53, which is used to plug and position the winding column 5, and the receiving groove is provided with a mating conical surface 54 that frictionally fits with the conical surface 54, and the conical surface 54 and the mating conical surface 54 are frictionally fitted when they abut. Since the structure of the receiving groove on the supporting plate 41 is similar to the structure of the first groove 261 of the lower mold 26, in order to save space, it will not be described here, and the drawings will not be shown, which should be understood by those skilled in the art.

[0087] Furthermore, the four corners of the supporting plate 41 are vertically guided with four sixth guide rods 412, the lower end of the sixth guide rod 412 is provided with a limiting plate 414, a second compression spring 413 is provided between the limiting plate 414 and the supporting plate 411, and the upper ends of the four sixth guide rods 412 are connected with a support sleeve 410, the supporting plate 41 and the support sleeve 410 are rotationally matched and axially prevented from moving, wherein the matching structure of the support sleeve 410 and the supporting plate 41 can adopt the existing technology, which will not be described again here, and technicians in this field should understand it.

[0088] refer to Fig.19A channel 4110 is provided on the bearing plate 411, and a transmission sleeve 415 is coaxially provided on the bearing plate 41, and the transmission sleeve 415 can pass through the channel 4110. A lifting rod 434 is provided on the first bearing plate 411 to guide rotation. The lifting rod 434 is vertically arranged, and the axis of the lifting rod 434 is in the same plane as the axis of the bearing plate 41, and the plane is parallel to the axis direction of the first lead screw 31. Specifically, a lifting assembly 43 driving the lifting rod 434 is provided below the first support plate, and the lifting assembly 43 includes a lifting assembly 43 provided on the first support plate 1 is provided with four third guide rods 432 around the lifting rod 434 on the lower surface, the lower ends of the four third guide rods 432 are connected with a horizontally arranged fixing plate 431, a lifting plate 433 is provided above the fixing plate 431 and is guided and slidably matched with the four third guide rods 432, the lower end of the lifting rod 434 is rotationally matched with the lifting plate 433 and axially limited, and a first servo motor 435 drivingly connected to the lifting rod 434 is provided on the lower surface of the lifting plate 433, and the first servo motor 435 drives the lifting rod 434 to rotate around the axis. Two fourth guide rods 436 are vertically guided on the fixed plate 431, a rigid plate is provided at the lower end of the fourth guide rod 436, a second servo motor 439 is provided on the rigid rod, the second servo motor 439 is driven and connected with a fourth lead screw 437, a fourth lead screw nut 438 is detachably fixedly provided in the middle area of ​​the fixed plate 431, and the fourth lead screw nut 438 is connected to the fourth lead screw 437. Through this arrangement, the fourth lead screw 437 can be driven to rotate by the second servo motor 439, thereby driving the lifting plate 433 to rise and fall, thereby achieving the purpose of driving the lifting rod 434 to rise and fall.

[0089] Specifically, as a specific implementation, the transmission sleeve 415 can be a spline sleeve, and the upper end of the lifting rod 434 is provided with a spline shaft end that is plug-in and transmission-matched with the transmission sleeve 415.

[0090] A third support plate 421 is disposed above the carrier plate 41. The third support plate 421 is provided with a top 428 coaxial with the lifting rod 434. The top 428 is arranged to rotate around its own axis. Specifically, in the initial state, the lifting rod 434 is lowered and separated from the transmission sleeve 415, and the carrier plate 41 is in a state of being separated from the transmission sleeve 415 under the elastic force of the second elastic member. Fig.18As shown, it is in the initial state of contact with the supporting plate 411. At this time, when the fifth servo motor 442 rotates, it can drive the fifth screw 440 to rotate and drive the supporting plate 41 to move, and move at the winding station directly below the top 428 and the loading and unloading station deviated from the top 428. When the column 5 is wound up and down on the supporting plate 41, the supporting plate 41 is at the loading and unloading station, and when the graphite paper 61 is wound on the winding column 5, the supporting plate 41 is at the winding station directly below the top 428. At the winding station, the supporting plate 41, the top 428 and the lifting rod 434 are coaxially arranged. When the winding column 5 on the winding station is wound around the graphite paper 61, the lifting rod 434 is controlled to lift so that the upper end of the lifting rod 434 is inserted into the transmission sleeve 415, and then the lifting is continued to push the load-bearing upward movement, and the sixth guide rod 412 is pulled to move and compress the second compression spring 413. When it is lifted to a predetermined height, it stops and maintains the current position. At this time, the upper end of the winding column 5 arranged on the supporting plate 41 abuts against the top 428. Specifically, the upper end of the winding column 5 can be arranged in the top groove adapted to the top 428, and then the first servo motor 435 is controlled to work to drive the lifting rod 434 to rotate and drive the supporting plate 41 to rotate. The supporting plate 41 drives the winding column 5 to rotate and wind the graphite paper 61 through friction, and the number of rotations of the first servo motor 435 is controlled. After rotating a certain angle, the winding of the blank 6 is completed and the rotation stops. Then the lifting rod 434 is controlled to descend and return to the initial position. The supporting plate 41 rebounds to the initial position under the action of the rebound force of the second compression spring 413 to complete the winding work.

[0091] Further, as a specific implementation method, refer to Figure 14-Figure 22 A material tray 420 is also provided on the side of the third support plate 421 away from the carrier plate 41. The material tray 420 is used to wind the graphite paper 61. Along the path from the material tray 420 to the top 428, a centering roller group 423 and a moving frame 425 are sequentially provided below the third support plate 421. The moving frame 425 can be positionally adjusted along the radial direction of the top 428. A driving roller group 427 and an extrusion roller group 426 are provided on the moving frame 425. The graphite paper 61 on the material tray 420 passes through the centering roller group 423, the driving roller group 427 and the extrusion roller group 426 in sequence. The centering roller group 423 is used to center, clamp and guide the graphite paper 61. The driving roller group 427 is used to guide the graphite paper 61. 27 is used for clamping and driving the graphite paper 61, the squeezing roller group 426 is used for squeezing the end of the graphite paper 61 onto the outer peripheral surface of the column 51 of the winding column 5, so that the graphite paper 61 is attached to the outer peripheral surface of the column 51 and is tightly wound, and the moving frame is used for moving according to the number of rotations of the winding column 5, the thickness of the graphite paper 61, etc. when the winding column 5 rotates, so that the squeezing roller can move with the increase of the thickness of the graphite paper 61, thereby ensuring the squeezing effect of the squeezing roller on the graphite paper 61 without hindering the winding of the graphite paper 61. Similarly, the driving roller group 427 can also change the driving speed according to the number of rotations of the winding column 5 and the thickness of the graphite paper 61, so that the speed of driving the graphite paper 61 is adapted to the winding speed of the winding column 5.

[0092] Specifically, a fourth support plate 4210 is vertically arranged on the lower surface of the third support plate 421, a linear drive member 4252 and a seventh guide rod 4251 are arranged on the fourth support plate 4210, a movable frame 425 is arranged at the ends of the linear drive member 4252 and the seventh guide rod 4251, and the linear drive member 4252 uses an electric telescopic rod, which achieves the effect of driving the movable frame 425 to move by the extension and retraction of the electric telescopic rod.

[0093] The driving roller group 427 includes a first roller frame 4260 arranged on the movable frame 425, a first driving roller 4271 and a second driving roller 4272 arranged on the first roller frame 4260 for rotation at an interval, the first driving roller 4271 and the second driving roller 4272 are connected by transmission and driven by a sixth servo motor 4275 to drive the first driving roller 4271 and the second driving roller 4272 to rotate in opposite directions, and drive the graphite paper 61 arranged between the first driving roller 4271 and the second driving roller 4272 toward the squeezing roller direction, and specifically, the first driving roller 4271 and the second driving roller 4272 can adopt a sprocket or chain transmission method, and the chain can be tensioned by setting an elastic tensioning wheel.

[0094] The extrusion rollers include a second roller frame 4273 arranged on the movable frame 425, a first extrusion roller 4261 rotatably arranged on the second roller frame 4273, and a second extrusion roller 4262 arranged on the side of the extrusion roller away from the top 428. The second extrusion roller 4262 is in contact and support with the roller surface of the first extrusion roller 4261. The axial dimension of the second extrusion roller 4262 is smaller than that of the first extrusion roller 4261 and the upper end is flush. Through this arrangement, both ends of the second extrusion roller 4262 are supported by the second roller frame 4273. The second roller frame 4273 provides support for the first roller frame 4260. The lower end of the first roller frame 4260 is not connected to the roller frame, so that when the graphite paper 61 is wound around the winding column 5, the lower end of the second extrusion roller 4262 is in contact and sliding friction with the upper disk surface of the positioning disk 52, thereby ensuring that the gap between the lower end of the graphite paper 61 formed by the blank 6 and the upper surface of the positioning disk 52 is small enough to ensure the forming effect during subsequent extrusion.

[0095] Furthermore, in some embodiments, the second driving roller 4272 is configured to be movable, and the gap between the second driving roller 4272 and the first driving roller 4271 can be adjusted to meet the needs of graphite paper 61 of different thicknesses. The adjustment method of the second driving roller 4272 adopts the adjustment structure in the prior art, which will not be described in detail here.

[0096] Further, as a preferred embodiment, refer to Fig.17 , Fig. 22 , Fig.23A flow channel 42710 is provided in the first driving roller 4271, and a plurality of glue outlet holes 42711 communicating with the flow channel 42710 are provided on the outer peripheral surface. The end of the flow channel 42710 is connected with a glue supply device. Between the centering roller group 423 and the driving roller group 427, a fifth telescopic rod 45 and a sixth telescopic rod 46 are symmetrically provided on both sides of the graphite paper 61. A first plate 451 is provided at the end of the fifth telescopic rod 45. In the vertical direction, a plurality of cutters 450 are arranged at intervals on the plate surface of the first plate 451. A plurality of matching grooves 460 matching with the cutters 450 are provided at the end of the sixth telescopic rod 46. In the initial normal working state, the first plate 451 and the second plate 461 is spaced away from the graphite paper 61, and the glue supply device does not supply glue. At this time, the glue outlet hole 42711 does not discharge glue. The end of the graphite paper 61 can be bonded to the roller surface of the first squeezing roller 4261 by bonding, and an adhesive is set on the side of the end of the graphite paper 61 close to the top 428. When winding on the winding column 5, the moving frame 425 moves to make the first squeezing roller 4261 contact with the column 51, squeeze the graphite paper 61 on the outer peripheral surface of the column 51 and squeeze and bond the end to the outer peripheral surface of the column 51, then the winding column 5 and the driving roller start to rotate synchronously, and the graphite paper 61 is wound on the winding column 5 to form a blank. When the winding blank 6 is about to be completed, the root The position where the graphite paper 61 is to be cut is determined according to the number of revolutions of the winding column 5, and the time point at which the graphite paper 61 is cut is determined according to the distance between the fifth guide rod 441 and the sixth guide rod 412 and the squeezing roller. When the cut-off time point is reached, the fifth guide rod 441 and the sixth guide rod 412 are synchronously extended to cut the graphite paper 61 through the cutter 450 and the matching groove 460. Since the cutter 450 is arranged at intervals, the graphite paper 61 will not be cut. At this time, the driving roller group 427 and the winding column 5 continue to rotate. The driving roller group 427 determines the length of the graphite paper 61 to be transported according to the number of revolutions. When the position where the graphite paper 61 is cut by the cutter 450 passes through the first driving roller 4271, the glue is supplied. The device supplies glue for a predetermined time, and applies a certain distance of adhesive on both sides of the cutting position of the graphite paper 61. After the conveying length is completed, the driving roller group 427 stops rotating, and the winding column 5 continues to rotate to wind the remaining graphite paper 61. Then, because the driving roller group 427 stops moving and clamps the graphite paper 61, when the winding column 5 continues to rotate, the graphite paper 61 reaches the squeezing roller at the cutting position. As the winding column 5 continues to rotate, the graphite paper 61 is pulled, and the cut position is torn off. The end of the graphite paper 61 is squeezed by the squeezing roller and bonded by the adhesive, and one end of the end of the graphite paper 61 clamped by the driving roller group is also coated with adhesive, which is convenient for the next operation. The adhesive is a liquid adhesive commonly used for graphite paper 61.

[0097] Specifically, the first squeezing roller 4261 adsorbs the graphite paper 61 in an electrostatic adsorption manner, and adsorbs and positions the end of the graphite paper 61 in an initial state.

[0098] Embodiment 3

[0099] As a specific embodiment, the present invention further provides a method for preparing a graphite packing ring, which is carried out using any of the above-mentioned graphite packing ring preparation devices, and comprises the following steps:

[0100] Step 1: The movable part 260 is in the initial state, and the winding column 5 formed by winding the blank is placed on the lower mold 26; the outer radius of the blank 6 is greater than the radius of the positioning plate 52 of the winding column 5;

[0101] Step 2: The lower die 26 moves upward into the die cavity 220, and the upper die 210 descends into the die cavity 220, and the upper die 210 and the lower die 26 apply force to extrude the blank 6;

[0102] Step 3: The upper mold 210 and the lower mold 26 rise synchronously. When the lower surface of the positioning plate 52 is flush with the upper end of the mold cavity 220, the lower mold 26 stops moving and the upper mold 210 continues to rise.

[0103] Step 4: The clamping assembly 24 clamps the positioning plate 52 and supports and positions the lower end of the extruded blank 6;

[0104] Step 5: Switch the positioning rod 265 to the positioning state to position the winding column 5;

[0105] Step 6: The lower die 26 descends, pulling the winding column 5 to move and separate from the extruded blank 6.

[0106] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A graphite packing ring preparation device, characterized in that: The extrusion unit (2) comprises: Mould cavity (220); An upper mold (210) is disposed above the mold cavity (220) so as to move in a vertical direction and is coaxially disposed with the mold cavity (220); A lower mold (26) is disposed below the mold cavity (220) so as to move in a vertical direction and is coaxially disposed with the mold cavity (220); A clamping assembly (24), comprising two groups arranged at opposite sides of the mold cavity (220), and arranged at an upper end portion of the mold cavity (220); A first groove (261) is coaxially arranged at the upper end of the lower mold (26), a movable member (260) is vertically lifted and lowered at the bottom of the first groove (261), the movable member (260) is provided with a positioning rod (265), and the positioning rod (265) is configured to switch from a released state to a locked state when the movable member (260) is lifted; A second groove (262) is provided at the bottom of the first groove (261); the movable member (260) is guided and matched with the second groove (262); an inserting cavity (2601) is axially provided at the upper end of the movable member (260); at least one radial channel (2602) is provided on the side wall of the inserting cavity (2601); the positioning rod (265) is guided and provided in the radial channel (2602); and a first positioning groove (2620) is provided on the side wall of the second groove (262) corresponding to the positioning rod (265); It also includes a winding column (5), including a positioning plate (52), a main body and an insertion column (53) coaxially arranged on opposite sides of the positioning plate (52), the insertion column (53) being plugged into and matched with the insertion cavity (2601), and the outer peripheral surface of the insertion column (53) is provided with a second positioning groove (55) matched with the positioning rod (265), the first groove (261) is positioned and matched with the positioning plate (52), and the depth of the first groove (261) is equal to the thickness of the positioning plate (52).

2. A graphite packing ring preparation device according to claim 1, characterized in that: The second groove (262) is a columnar groove, the movable member (260) is provided with a columnar segment that cooperates with the columnar groove for guidance, and the first positioning groove (2620) is an annular groove.

3. A graphite packing ring preparation device according to claim 2, characterized in that: A guide hole is coaxially arranged at the bottom of the second groove (262); the movable part (260) comprises a columnar body which cooperates with the guide hole for guidance; a fourth power telescopic part (264) is arranged below the lower mold (26); the fourth power telescopic part (264) is drivingly connected to the movable part (260).

4. A graphite packing ring preparation device according to claim 1, characterized in that: The positioning plate (52) is coaxially provided with a conical surface (54) on one side close to the positioning column.

5. The graphite packing ring preparation device according to claim 1, characterized in that: Also includes: A winding unit (4) is arranged at a distance from the extrusion unit (2) and is used to wind the strip-shaped graphite piece onto a winding column (5); The first transport unit (3) comprises a vertical plate (33) movably arranged between the winding unit and the extrusion unit (2), and at least two transport members (37) movably arranged on the vertical plate (33) in a vertical direction, wherein the two transport members (37) are arranged at intervals in a horizontal direction, and the transport members (37) are used to fix the winding column (5).

6. A graphite packing ring preparation device according to claim 5, characterized in that: The transport member (37) comprises a vertically arranged guide cavity (370) and an electromagnet (371) arranged at the upper end of the guide cavity (370). The winding column (5) is in guiding and plugging cooperation with the guide cavity (370). The winding column (5) is made of a magnetic attraction material.

7. A graphite packing ring preparation device according to claim 5, characterized in that: The winding unit (4) comprises: A carrying plate (41) for placing and positioning the winding column (5) and arranged to move horizontally along a first direction; A top (428) is disposed above the material tray (420); A lifting rod (434) is located below the material tray (420) and is coaxial with the top (428), and is arranged to be lifted and lowered in the vertical direction; A driving device is drivably connected to the lifting rod (434) and is used to drive the lifting rod (434) to rotate around its axis.

8. A method for preparing a graphite packing ring, characterized in that: The preparation is carried out using the graphite packing ring preparation device described in any one of claims 1 to 7, comprising the following steps: Step 1: The movable part (260) is in an initial state, and a winding column (5) formed by winding a blank (6) is placed on a lower mold (26); the outer radius of the blank (6) is greater than the radius of the positioning plate (52) of the winding column (5); Step 2: The lower die (26) moves upward into the die cavity (220), the upper die (210) descends into the die cavity (220), and the upper die (210) and the lower die (26) apply force to extrude the blank (6); Step 3: The upper mold (210) and the lower mold (26) are raised synchronously, and when the lower surface of the positioning plate (52) is flush with the upper end of the mold cavity (220), the lower mold (26) stops moving and the upper mold (210) continues to rise; Step 4: The clamping assembly (24) works to support and position the lower end of the extruded billet (6); Step 5: Switch the positioning rod (265) to the positioning state to position the winding column (5); Step 6: The lower die (26) descends, pulling the winding column (5) to move and separate from the extruded blank (6).

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