Device forming tool and device forming system

Abstract

The utility model provides a device forming tool and a device forming system, and relates to the technical field of pressure plastic deformation, the device forming tool comprises a pressure applying piece, an inner mold core, an adjusting core and an outer mold core, the pressure applying piece is provided with a cavity with at least one open end, the adjusting core is arranged and arranged in the cavity, and in the deformation process of the pressure applying piece, the inner mold core and the outer mold core are separated from each other. The volume of a fluid medium needing to be introduced into the cavity is reduced, the deformation time of the pressure applying piece is shortened, and the working efficiency of the device forming tool is improved; the inner mold core is arranged, and the inner mold core channel of the inner mold core is communicated with the cavity through the adjusting core channel of the adjusting core, so that a fluid medium is introduced into the cavity; by arranging the pressure applying piece, when the device forming tool works, the fluid medium is introduced into the cavity of the pressure applying piece through the inner mold core channel and the adjusting core channel, the pressure applying piece deforms to extrude the to-be-formed workpiece, plastic deformation of the to-be-formed workpiece is completed, and the production efficiency of the device forming system for producing the workpiece is improved.

Description

Technical Field

[0001] The present application relates to the technical field of pressure plastic processing, and in particular to a device molding tool and a device molding system. Background Art

[0002] Metal packaging containers refer to thin-walled packaging containers made of metal sheets. They are widely used in food packaging, pharmaceutical packaging, daily necessities packaging, instrument packaging, industrial product packaging, and ammunition packaging. Metal packaging containers include metal barrels, metal cans, and special-shaped cans. Metal packaging containers are often prepared by metal pressure processing methods.

[0003] In the prior art, the equipment used for pressure plastic processing of metal packaging containers includes an external mold and a rubber bladder. During the pressure processing process, the workpiece to be formed needs to be placed between the external mold and the rubber bladder, and then the fluid medium is filled into the rubber bladder. In this way, the outside of the workpiece to be formed is constrained by the external mold, and the inside is subjected to the expansion and extrusion force of the rubber bladder, so that the workpiece to be formed forms a metal packaging container of the desired shape.

[0004] However, existing equipment for pressure plastic processing of metal packaging containers has the problem of low efficiency. Utility Model Content

[0005] The present application provides a device molding tool and a device molding system, which improves the working efficiency of the device molding tool and improves the molding capacity of the device molding system.

[0006] In the first aspect, the present application provides a device molding tool for pressure plastic processing of a workpiece to be formed, the device molding tool comprising a pressure piece, an inner mold core, an adjustment core and an outer mold core, the pressure piece having a cavity with at least one end open, the adjustment core and at least part of the inner mold core being located in the cavity, the outer mold core being connected to the outside of the pressure piece and being arranged close to the opening; the outer mold core, the adjustment core and the inner mold core being connected.

[0007] The inner mold core has an inner mold core channel, the adjusting core has an adjusting core channel, and the inner mold core channel and the cavity are communicated through the adjusting core channel.

[0008] When the device molding tool is working, the fluid medium is introduced into the cavity through the inner mold core channel and the adjustment core channel, and the pressure piece is deformed to extrude the workpiece to be formed, thereby completing the plastic processing of the workpiece to be formed.

[0009] In the above-mentioned device molding tooling, optionally, the inner mold core includes a first inner mold core segment and a second inner mold core segment, the first inner mold core segment is located in the cavity, the first end of the first inner mold core segment is detachably connected to the adjustment core, the second end of the first inner mold core segment is detachably connected to the second inner mold core segment, and one end of the second inner mold core segment facing away from the first inner mold core segment extends from the opening to the outside of the cavity.

[0010] The first inner mold core segment has a first inner mold core channel, the second inner mold core segment has a second inner mold core channel, the first inner mold core channel is connected to the second inner mold core channel and the adjustment core channel respectively, and the first inner mold core channel and the second inner mold core channel connected to each other form an inner mold core channel.

[0011] In the above-mentioned device molding tool, optionally, the first end of the first inner mold core segment faces away from the outlet, the first end of the first inner mold core segment is provided with a mold core protrusion, and the mold core protrusion and the adjustment core are detachably connected.

[0012] In the cavity, along the direction from approaching the opening to away from the opening, perpendicular to the axial extension direction of the adjustment core, the area of ​​the cross section of the first inner mold core segment gradually increases.

[0013] In the above-mentioned device molding tool, optionally, a groove is provided at one end of the adjustment core close to the opening.

[0014] The groove and the core protrusion are clamped together; or, the inner peripheral wall of the groove is provided with a groove thread, the outer peripheral wall of the core protrusion is provided with a protrusion thread, and the adjustment core and the first inner core segment are screwed together through the groove thread and the protrusion thread.

[0015] In the above-mentioned device molding tooling, optionally, the adjustment core channel includes a first channel segment and multiple second channel segments that are interconnected, the first channel segment extends along the axial direction of the adjustment core, and the second channel segment extends away from the end of the first channel segment toward the inner wall surface close to the pressure member, and the extension direction of the first channel segment intersects with the extension direction of the second channel segment.

[0016] In the above-mentioned device molding tool, optionally, the plurality of second channel segments are arranged along the circumferential direction of the adjustment core; and / or the plurality of second channel segments are arranged along the axial direction of the adjustment core.

[0017] In the above-mentioned device molding tool, optionally, the outer mold core has an outer mold core cavity and an outer mold core channel, the outer mold core cavity is connected to the outer mold core channel, and the outer mold core cavity is located on a side of the outer mold core channel close to the pressure piece.

[0018] Part of the inner mold core is inserted into the outer mold core channel, at least part of the pressure piece is located in the outer mold core cavity, and the outer peripheral wall of the pressure piece located in the outer mold core cavity abuts against the inner peripheral wall of the outer mold core cavity.

[0019] In the above-mentioned device molding tool, optionally, outside the cavity, along the direction from close to the opening to away from the opening, perpendicular to the axial extension direction of the inner mold core, the cross-sectional area of ​​the outer mold core cavity gradually decreases.

[0020] In the above-mentioned device molding tooling, optionally, the outer mold core can be a metal mold core, the inner mold core can be any one of a metal mold core, a ceramic mold core and a plastic mold core, and the adjustment core can be any one of a metal mold core, a ceramic mold core and a plastic mold core.

[0021] In a second aspect, the present application provides a device molding system, including a molding mold, a supply part and the above-mentioned device molding tooling, the molding mold has a molding cavity, the device molding tooling is located in the molding cavity, and there is a molding area between the device molding tooling and the inner wall of the molding cavity for placing the workpiece to be formed.

[0022] The supply part is communicated with the inner mold core channel of the device molding tool.

[0023] The present application provides a device molding tool and a device molding system, wherein the device molding tool comprises a pressure piece, an inner mold core, an adjustment core and an outer mold core, wherein the pressure piece has a cavity with at least one end open, and by arranging the adjustment core and arranging the adjustment core in the cavity, during the deformation process of the pressure piece, the volume of the fluid medium required to be introduced into the cavity is reduced, the deformation time of the pressure piece is reduced, and the working efficiency of the device molding tool is improved; by arranging the inner mold core and connecting the inner mold core channel of the inner mold core with the cavity through the adjustment core channel of the adjustment core, the fluid medium is introduced into the cavity, It is beneficial to the deformation of the pressure piece; by setting an outer mold core and connecting the outer mold core to the outside of the pressure piece and setting it close to the opening, the outer mold core can provide support force for the device molding tooling and improve the stability of the device supporting tooling; by setting the pressure piece, when the device molding tooling is working, the fluid medium is introduced into the cavity of the pressure piece through the inner mold core channel and the adjustment core channel, the pressure piece is deformed to extrude the workpiece to be formed, and the plastic processing of the workpiece to be formed is completed, so that the overall force of the workpiece to be formed is uniform. The device molding system includes the above-mentioned device molding tooling, which improves production efficiency.

[0024] The structure of the present application and its other practical purposes and beneficial effects will be more clearly understood through the description of the preferred embodiments in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0026] Figure 1 A schematic diagram of the structure of a device molding tool provided in an embodiment of the present application;

[0027] Figure 2 A schematic structural diagram of an inner mold core of a device molding tool provided in an embodiment of the present application;

[0028] Figure 3A schematic structural diagram of a pressure-applying member of a device molding tool provided in an embodiment of the present application;

[0029] Figure 4 A schematic diagram of the structure of an adjustment core of a device molding tool provided in an embodiment of the present application;

[0030] Figure 5 A schematic structural diagram of an outer mold core of a device molding tool provided in an embodiment of the present application;

[0031] Figure 6 A schematic structural diagram of the left axial side when the pressure-applying member of the device molding tool provided in an embodiment of the present application has two openings;

[0032] Figure 7 A schematic structural diagram of the right shaft side when the pressure-applying piece of the device molding tool provided in an embodiment of the present application has two openings.

[0033] Description of reference numerals:

[0034] 100: pressure piece;

[0035] 200: Inner mold core;

[0036] 210: first inner mold core segment; 211: first inner mold core channel; 212: mold core protrusion; 220: second inner mold core segment; 221: second inner mold core channel;

[0037] 300: adjusting core; 310: adjusting core channel; 311: first channel section; 312: second channel section; 320: groove;

[0038] 400: outer mold core; 410: outer mold core cavity; 420: outer mold core channel.

[0039] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0040] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0041] The inventor of the present application discovered in the actual research process that metal packaging containers refer to thin-walled packaging containers made of metal sheets, which are widely used in food packaging, pharmaceutical packaging, daily necessities packaging, instrument packaging, industrial product packaging, and ammunition packaging.

[0042] In the prior art, metal packaging containers are often prepared by metal pressure plastic deformation process, wherein metal pressure plastic processing is a production method that utilizes the plastic deformation of metal under the action of external force to obtain raw materials, blanks or parts with certain shapes, sizes and mechanical properties, also known as metal plastic processing. The equipment used for pressure plastic processing of metal packaging containers includes an external mold and a rubber bladder. During the pressure processing process, it is necessary to place the workpiece to be formed between the external mold and the rubber bladder, and then fill the rubber bladder with a fluid medium, so that the outside of the workpiece to be formed is constrained by the external mold, and the inside is subjected to the expansion and extrusion force of the rubber bladder, so that the workpiece to be formed is deformed into a metal packaging container of the desired shape.

[0043] However, when preparing a metal packaging container with a relatively large cavity, a large amount of fluid medium needs to flow into the rubber bag, and the process of the fluid medium passing into the rubber bag takes time, which leads to low efficiency in the preparation process of the metal packaging container.

[0044] In view of this, the embodiment of the present application provides a device molding tool and a device molding system, wherein the device molding tool comprises a pressure piece, an inner mold core, an adjustment core and an outer mold core, wherein the pressure piece has a cavity with at least one end open, and by providing an adjustment core and providing the adjustment core in the cavity, during the deformation process of the pressure piece, the volume of the fluid medium required to be introduced into the cavity is reduced, the deformation time of the pressure piece is reduced, and the working efficiency of the device molding tool is improved; by providing an inner mold core, and connecting the inner mold core channel of the inner mold core to the cavity through the adjustment core channel of the adjustment core, the fluid medium in the cavity is realized. The passage of the pressure piece is beneficial to the deformation of the pressure piece; by arranging an outer mold core and connecting the outer mold core to the outside of the pressure piece and arranging it close to the opening, the outer mold core can provide support force for the device molding tooling and improve the stability of the device support tooling; by arranging the pressure piece, when the device molding tooling is working, the fluid medium is introduced into the cavity of the pressure piece through the inner mold core channel and the adjustment core channel, the pressure piece is deformed to extrude the workpiece to be formed, the plastic processing of the workpiece to be formed is completed, and the overall force of the workpiece to be formed is uniform. The device molding system includes the above-mentioned device molding tooling, which improves the production efficiency.

[0045] The technical solution of the present application and how the technical solution of the present application solves the above-mentioned technical problems are described in detail below with specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0046] In the first aspect, the present application provides a device molding tool for pressure plastic processing of a workpiece to be formed, the device molding tool includes a pressure piece 100, an inner mold core 200, an adjustment core 300 and an outer mold core 400, the pressure piece 100 has a cavity with at least one end open, the adjustment core 300 and at least part of the inner mold core 200 are located in the cavity, the outer mold core 400 is connected to the outside of the pressure piece 100 and is arranged close to the opening; the outer mold core 400, the adjustment core 300 and the inner mold core 200 are connected.

[0047] The inner mold core 200 has an inner mold core channel, the adjusting core 300 has an adjusting core channel 310 , and the inner mold core channel and the cavity are communicated through the adjusting core channel 310 .

[0048] When the device molding tool is working, the fluid medium is introduced into the cavity through the inner mold core channel and the adjustment core channel 310, and the pressure member 100 is deformed to extrude the workpiece to be formed, thereby completing the plastic processing of the workpiece to be formed.

[0049] For example, refer to Figures 1 to 5 As shown, before using the device molding tool, first connect the inner mold core 200 and the adjustment core 300, place the adjustment core 300 and at least part of the inner mold core 200 in the cavity of the pressure member 100, extend the remaining inner mold core 200 through the opening of the pressure member 100, and then connect the outer mold core 400 to the extended inner mold core 200. After the device molding tool is assembled, the device molding tool is placed in the molding cavity of the molding mold, and the workpiece to be molded is placed between the device molding tool and the molding mold to perform pressure plastic deformation on the workpiece to be molded.

[0050] During the use of the device molding tooling, the fluid medium is introduced into the cavity through the inner mold core channel and the adjustment core channel 310 in turn. The fluid medium continuously flowing into the cavity causes the pressure piece 100 to deform. In this way, the deformed pressure piece 100 squeezes the workpiece to be formed, and then the workpiece to be formed is deformed until the workpiece to be formed is completely deformed to obtain a formed workpiece.

[0051] By placing the adjustment core 300 and part of the inner mold core 200 in the cavity of the pressure piece 100, the volume of the fluid medium required to be introduced into the cavity during use of the device molding tooling is reduced, thereby improving the working efficiency of the device molding tooling; by setting the pressure piece 100, the pressure piece 100 is deformed under the action of the fluid medium to extrude the workpiece to be formed, thereby improving the deformation capacity of the workpiece to be formed.

[0052] In some embodiments, reference Figure 1As shown, the pressure piece 100 has a cavity with an opening at one end, the adjustment core 300 and at least part of the inner mold core 200 are located in the cavity, the outer mold core 400 is connected to the outside of the pressure piece 100 and is arranged close to the opening; the outer mold core 400, the adjustment core 300 and the inner mold core 200 are connected.

[0053] In other embodiments, referring to Figure 6 and Figure 7 As shown, the pressure piece 100 has a cavity with openings at both ends, and there are two adjustment cores 300, inner mold cores 200, and outer mold cores 400. When the openings are located on the left and right sides of the cavity, at least a portion of an inner mold core 200 and an adjustment core 300 are located on the left side of the cavity, and an outer mold core 400 is connected to the outside of the left side of the pressure piece 100 and is arranged close to the left opening; at least a portion of an inner mold core 200 and an adjustment core 300 are located on the right side of the cavity, and an outer mold core 400 is connected to the outside of the right side of the pressure piece 100 and is arranged close to the right opening; by arranging the inner mold core 200, the adjustment core 300, and the outer mold core 400 on the left and right sides of the pressure piece 100, respectively, the speed of passing the fluid medium is increased, thereby increasing the deformation speed of the pressure piece 100, and further improving the working efficiency of the device molding tooling.

[0054] As a feasible implementation manner, the inner mold core 200 includes a first inner mold core segment 210 and a second inner mold core segment 220. The first inner mold core segment 210 is located in the cavity. The first end of the first inner mold core segment 210 is detachably connected to the adjustment core 300, the second end of the first inner mold core segment 210 is detachably connected to the second inner mold core segment 220, and the end of the second inner mold core segment 220 that is away from the first inner mold core segment extends from the opening to the outside of the cavity.

[0055] The first inner mold core segment 210 has a first inner mold core channel 211, and the second inner mold core segment 220 has a second inner mold core channel 221. The first inner mold core channel 211 is connected to the second inner mold core channel 221 and the adjustment core channel 310 respectively, and the first inner mold core channel 211 and the second inner mold core channel 221 connected to each other form an inner mold core channel.

[0056] For example, refer to Figure 2As shown, the inner mold core 200 includes a first inner mold core segment 210 and a second inner mold core segment 220, wherein the first inner mold core segment 210 is arranged in the cavity of the pressure piece 100, and the second inner mold core segment 220 is arranged outside the cavity of the pressure piece 100, and the first end of the first inner mold core segment 210 and the adjustment core 300 are detachably connected, and the second end of the first inner mold core segment 210 and the second inner mold core segment 220 are detachably connected; by setting the first inner mold core segment 210 and the adjustment core 300 to be detachably connected, and setting the first inner mold core segment 210 and the second inner mold core segment 220 to be detachably connected, during the use of the device molding tooling, the assembly efficiency of the device molding tooling is improved, and the device molding tooling can be reused multiple times. At the same time, during the maintenance of the device molding tooling, only the problematic parts need to be replaced, thereby reducing the maintenance cost.

[0057] By connecting the first inner mold core channel 211 of the first inner mold core segment 210 and the second inner mold core channel 221 of the second inner mold core segment 220, and connecting the first inner mold core channel 211 of the first inner mold core segment 210 and the adjusting core channel 310 of the adjusting core 300, the fluid medium can flow into the cavity through the second inner mold core channel 221, the first inner mold core channel 211 and the adjusting core channel 310 in sequence, and then the pressure piece 100 is deformed under the action of the filled fluid medium, and then the deformed pressure piece 100 extrude the workpiece to be formed, so as to achieve pressure plastic deformation of the workpiece to be formed, thereby improving the working efficiency of the device forming tooling.

[0058] For example, the pressure member 100 can be a rubber bag, which uses flexible pressure to apply pressure to the entire workpiece to be formed, so that the overall force on the workpiece to be formed is uniform, avoiding the problem of local stress concentration when the workpiece to be formed is plastically deformed under pressure, and also avoiding the pressure member 100 causing mechanical damage to the workpiece to be formed during the pressure process, thereby reducing the damage to the workpiece to be formed during the forming process and increasing the life of the workpiece to be formed.

[0059] For example, the workpiece to be formed may be a metal can or a metal cylinder.

[0060] Exemplary fluid media may be air, water, and oil.

[0061] As a feasible implementation manner, the first end of the first inner mold core segment 210 faces away from the outlet, and the first end of the first inner mold core segment 210 is provided with a core protrusion 212 , and the core protrusion 212 and the adjustment core 300 are detachably connected.

[0062] In the cavity, along the direction from approaching the opening to away from the opening, perpendicular to the axial extension direction of the adjustment core 300, the cross-sectional area of ​​the first inner mold core segment 210 gradually increases.

[0063] For example, by setting a core protrusion 212 at the first end of the first inner mold core segment 210 and detachably connecting the core protrusion 212 and the adjustment core 300, the installation process of the first inner mold core segment 210 and the adjustment core 300 is simplified, and the first inner mold core segment 210 and the adjustment core 300 can be reused multiple times.

[0064] For example, refer to Figure 1 As shown, in the cavity, along the direction from close to the opening to away from the opening, the direction from close to the opening to away from the opening is referenced Figure 1 In the direction indicated by the solid arrow, which is perpendicular to the axial extension direction of the adjustment core 300, the cross-sectional area of ​​the first inner mold core segment 210 gradually increases. That is to say, in the cavity of the pressure piece 100, the farther the first inner mold core segment 210 is from the opening, the larger the cross-sectional area of ​​the first inner mold core segment 210 is. In this way, after the first inner mold core segment 210 is set in the cavity, the first inner mold core segment 210 can limit the movement of the opening of the pressure piece 100, thereby preventing the pressure piece 100 from accidentally falling off the first inner mold core segment 210.

[0065] As a feasible implementation manner, a groove 320 is provided at one end of the adjustment core 300 close to the opening.

[0066] The groove 320 and the core protrusion 212 are snap-fitted; or, the inner circumferential wall of the groove 320 is provided with a groove thread, the outer circumferential wall of the core protrusion 212 is provided with a protrusion thread, and the adjustment core 300 and the first inner core segment 210 are screwed together through the groove thread and the protrusion thread.

[0067] In some embodiments, reference Figure 2 and Figure 4 As shown, the adjustment core 300 and the first inner mold core segment 210 are connected by a snap-fitting method, wherein a groove 320 is provided at one end of the adjustment core 300 close to the opening, and the groove 320 and the mold core protrusion 212 are snap-fitted. By snap-fitting the groove 320 and the mold core protrusion 212, the connection between the first inner mold core segment 210 and the adjustment core 300 is achieved, and the snap-fitting connection method simplifies the installation process and improves the installation efficiency. In order to improve the connection effect between the first inner mold core segment 210 and the adjustment core 300, a sealing ring can be provided between the groove 320 and the mold core protrusion 212 to improve the sealing between the first inner mold core segment 210 and the adjustment core 300 to avoid leakage of the fluid medium.

[0068] In other embodiments, the adjustment core 300 and the first end of the first inner mold core segment 210 are connected by screw connection. Among them, a groove 320 is provided at the end of the adjustment core 300 close to the opening, and the inner peripheral wall of the groove 320 is provided with a groove thread, and the outer peripheral wall of the mold core protrusion 212 is provided with a protrusion thread, and the adjustment core 300 and the first inner mold core segment 210 are screwed together by the protrusion thread and the groove thread. By providing the groove thread on the inner peripheral wall of the groove 320, the protrusion thread on the outer peripheral wall of the mold core protrusion 212, and screwing the adjustment core 300 and the first inner mold core segment 210, the connection strength of the adjustment core 300 and the first inner mold core segment 210 is improved, and the screw connection is a detachable connection, which simplifies the connection between the adjustment core 300 and the first inner mold core segment 210 and realizes repeated use. In addition, in the subsequent maintenance process, it is conducive to the maintenance and disassembly of the device molding tooling.

[0069] As a feasible implementation, the adjustment core channel 310 includes a first channel section 311 and multiple second channel sections 312 that are interconnected. The first channel section 311 extends along the axial direction of the adjustment core 300, and the second channel section 312 extends away from the end of the first channel section 311 toward the inner wall surface close to the pressure piece 100. The extension direction of the first channel section 311 intersects with the extension direction of the second channel section 312.

[0070] For example, refer to Figure 4 As shown, by setting the adjustment core channel 310 as a first channel section 311 and a plurality of second channel sections 312 that are interconnected, and setting the first channel section 311 to extend along the axial direction of the adjustment core 300, and setting the end of the second channel section 312 away from the first channel section 311 to extend toward the inner wall surface close to the pressure piece 100, after the fluid medium flows to the first channel section 311 through the inner mold core channel, a part of the fluid medium flows into the cavity through the first channel section 311, and another part of the fluid medium flows to the second channel section 312 through the first channel section 311, and flows into the cavity through the second channel section 312, so that different parts of the adjustment core 300 can transport the fluid medium to the cavity, so that the fluid medium flows evenly to various parts of the cavity, so as to achieve uniform deformation of various parts of the pressure piece 100, and then the deformed pressure piece 100 uniformly presses the workpiece to be formed, thereby improving the deformation uniformity of the device deformation tooling, improving the force uniformity of various parts of the workpiece to be formed, and improving the forming quality of the device forming tooling.

[0071] For example, the extension direction of the first channel segment 311 may be perpendicular to the extension direction of the second channel segment 312 .

[0072] As a feasible implementation manner, the plurality of second channel segments 312 are arranged along the circumferential direction of the adjusting core 300 ; and / or the plurality of second channel segments 312 are arranged along the axial direction of the adjusting core 300 .

[0073] In some embodiments, the first channel section 311 extends along the axial direction of the adjustment core 300, and the plurality of second channel sections 312 are arranged along the circumference of the adjustment core 300. In this way, a part of the fluid medium flows into the cavity along the axial direction of the adjustment core 300 through the first channel section 311, and another part of the fluid medium flows into the cavity along the circumference of the adjustment core 300 through the second channel section 312. In this way, in the process of the pressure member 100 extruding the workpiece to be formed, the circumference of the pressure member 100 is uniformly deformed. For example, in the process of preparing a metal cylinder with openings at both ends, in order to ensure the consistency of the diameter of the cylinder, the inner circumferential wall of the metal cylinder to be formed needs to be uniformly stressed. In this way, considering the molding characteristics of the workpiece to be formed, the first channel section 311 can be set to extend along the axial direction of the adjustment core 300, and the plurality of second channel sections 312 can be set to be arranged along the circumference of the adjustment core 300 to ensure that the pressure member 100 uniformly applies pressure to the inner circumferential wall of the metal cylinder.

[0074] In other embodiments, the first channel section 311 is configured to extend along the axial direction of the adjustment core 300, and the plurality of second channel sections 312 are arranged along the axial direction of the adjustment core 300. In this way, a portion of the fluid medium flows into the cavity along the axial direction of the adjustment core 300 through the first channel section 311, and another portion of the fluid medium flows into the cavity along the axial direction of the adjustment core 300 through the second channel section 312, thereby increasing the speed at which the fluid medium enters the cavity, increasing the deformation speed of the pressure member 100, and increasing the working efficiency of the device deformation tooling.

[0075] In some other embodiments, reference Figure 4 As shown, the first channel section 311 is set to extend along the axial direction of the adjustment core 300, a part of the second channel section 312 is arranged along the axial direction of the adjustment core 300, and another part of the second channel section 312 is arranged along the circumferential direction of the adjustment core 300, so that in the process of the pressure piece 100 extruding the workpiece to be formed, the pressure piece 100 is uniformly deformed as a whole. For example, in the preparation process of the metal can, in order to ensure the consistency of the structure of each part of the can body, each part of the inner circumferential wall of the metal can to be formed needs to be uniformly stressed. In this way, considering the forming characteristics of the workpiece to be formed, the first channel section 311 can be set to extend along the axial direction of the adjustment core 300, a part of the second channel section 312 is arranged along the circumferential direction of the adjustment core 300, and another part of the second channel section 312 is arranged along the axial direction of the adjustment core 300, so as to ensure that the pressure piece 100 uniformly applies pressure to each part of the metal can.

[0076] As a feasible implementation, the outer core 400 has an outer core cavity 410 and an outer core channel 420 , the outer core cavity 410 is connected to the outer core channel 420 , and the outer core cavity 410 is located on a side of the outer core channel 420 close to the pressure piece 100 .

[0077] Part of the inner mold core 200 is disposed in the outer mold core channel 420 , and at least part of the pressure member 100 is located in the outer mold core cavity 410 . The outer peripheral wall of the pressure member 100 located in the outer mold core cavity 410 abuts against the inner peripheral wall of the outer mold core cavity 410 .

[0078] For example, by setting an inner mold core 200 and an outer mold core 400, the first inner mold core segment 210 of the inner mold core 200 is passed through the outer mold core channel 420 of the outer mold core 400, and the outer mold core 400 is set on the outside of the pressure piece 100 and close to the opening, thereby ensuring the connection strength between the inner mold core 200 and the outer mold core 400 and improving the structural stability of the device deformation tooling during use.

[0079] By setting at least part of the pressure piece 100 in the outer core cavity 410, and abutting the outer peripheral wall of the pressure piece 100 set in the outer core cavity 410 with the inner peripheral wall of the outer core cavity 410, and abutting the inner peripheral wall of the pressure piece 100 with the first inner core segment 210 near the opening, the connection area between the outer core 400 and the pressure piece 100, and the pressure piece 100 and the inner core 200 is increased, thereby improving the connection stability of the outer core 400 and the pressure piece 100, and the pressure piece 100 and the inner core 200, and improving the structural stability of the device deformation tooling during use. At the same time, by setting the pressure piece 100 near the opening between the outer core 400 and the inner core 200, the sealing of the device molding tooling is improved, and the accidental leakage of the fluid medium in the pressure piece 100 is avoided.

[0080] As a feasible implementation, outside the cavity, along the direction from close to the opening to away from the opening, perpendicular to the axial extension direction of the inner mold core 200, the cross-sectional area of ​​the outer mold core cavity 410 gradually decreases.

[0081] For example, refer to Figure 1 In the direction indicated by the hollow arrow, which is perpendicular to the axial extension direction of the inner mold core 200, the cross-sectional area of ​​the outer mold core cavity 410 gradually decreases. That is to say, the closer the outer mold core cavity 410 is to the pressure piece 100, the larger the cross-sectional area of ​​the outer mold core cavity 410 is. In this way, the contact area between the outer mold core 400 and the pressure piece 100 is increased, thereby improving the connection strength.

[0082] As a feasible implementation, the outer mold core 400 can be a metal mold core, the inner mold core 200 can be any one of a metal mold core, a ceramic mold core and a plastic mold core, and the adjustment core 300 can be any one of a metal mold core, a ceramic mold core and a plastic mold core.

[0083] For example, the outer mold core 400 needs to provide support for the device molding tooling, so the outer mold core 400 needs to have sufficient hardness, so the outer mold core 400 can be a metal mold core. The inner mold core 200 only needs to pass the fluid medium into the cavity through the adjustment core channel 310, so the inner mold core 200 can be any one of a plastic mold core, a ceramic mold core and a metal mold core. The adjustment core 300 needs to occupy the space of the cavity in the pressure piece 100, so the pressure piece 100 can be any one of a plastic mold core, a ceramic mold core and a metal mold core.

[0084] In some embodiments, the outer mold core 400 may be a metal mold core, the adjustment core 300 may be a plastic mold core, and the inner mold core 200 may be a plastic mold core. By setting the inner mold core 200 and the adjustment core 300 as plastic mold cores, the gravity of the device molding tooling is reduced and the portability of the device molding tooling is improved.

[0085] In a second aspect, the present application provides a device molding system, including a molding mold, a supply part and the above-mentioned device molding tooling, the molding mold has a molding cavity, the device molding tooling is located in the molding cavity, and there is a molding area between the device molding tooling and the inner wall of the molding cavity for placing the workpiece to be formed.

[0086] The supply part is communicated with the inner mold core 200 channel of the device molding tool.

[0087] For example, the workpiece to be formed is a metal can to be formed. In the installation process, the metal can to be formed is first installed in the molding cavity of the molding mold, and the device molding tool is installed in the inner cavity of the metal can to be formed. In the pressure application process, the fluid medium is introduced into the inner mold core channel of the device molding tool through the supply part, and the fluid medium flows into the cavity of the pressure member 100 through the adjustment core channel 310. The pressure member 100 is deformed to squeeze the metal can to be formed, and the metal can is respectively in contact with the pressure member 100 and the molding mold, and then the metal can to be formed is deformed, and the metal can to be formed is deformed into a formed metal can.

[0088] For example, the supply member may be a gas cylinder, which provides gas to the cavity through the inner mold core channel and the adjustment core channel 310 .

[0089] It is understandable that, since the device molding system of the present application adopts the technical solution of the above-mentioned device molding tooling embodiment, it at least has the beneficial effects brought by the technical solution of the above-mentioned embodiment, which will not be described one by one here.

[0090] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the application disclosed herein. The present application is intended to cover any modification, use or adaptation of the present application, which follows the general principles of the present application and includes common knowledge or customary techniques in the art that are not disclosed in the present application. The specification and examples are intended to be exemplary only, and the true scope and spirit of the present application are indicated by the following claims.

[0091] It should be understood that the present application is not limited to the precise structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

Claims

1. A device molding tool, characterized in that: Used for pressure plastic processing of a workpiece to be formed, the device forming tooling comprises a pressure piece, an inner mold core, an adjustment core and an outer mold core, the pressure piece has a cavity with at least one end opening, the adjustment core and at least part of the inner mold core are located in the cavity, the outer mold core is connected to the outside of the pressure piece and is arranged close to the opening; the outer mold core, the adjustment core and the inner mold core are connected; The inner mold core has an inner mold core channel, the adjusting core has an adjusting core channel, and the inner mold core channel and the cavity are connected through the adjusting core channel; When the device molding tool is working, the fluid medium is introduced into the cavity through the inner mold core channel and the adjustment core channel, and the pressure member is deformed to extrude the workpiece to be formed, thereby completing the plastic processing of the workpiece to be formed.

2. The device molding tool according to claim 1, characterized in that: The inner mold core comprises a first inner mold core segment and a second inner mold core segment, the first inner mold core segment is located in the cavity, a first end of the first inner mold core segment is detachably connected to the adjustment core, a second end of the first inner mold core segment is detachably connected to the second inner mold core segment, and an end of the second inner mold core segment facing away from the first inner mold core segment extends from the opening to the outside of the cavity; The first inner mold core segment has a first inner mold core channel, the second inner mold core segment has a second inner mold core channel, the first inner mold core channel is connected to the second inner mold core channel and the adjustment core channel respectively, and the first inner mold core channel and the second inner mold core channel connected to each other form the inner mold core channel.

3. The device molding tool according to claim 2, characterized in that: The first end of the first inner mold core segment faces away from the opening, the first end of the first inner mold core segment is provided with a mold core protrusion, and the mold core protrusion is detachably connected to the adjustment core; In the cavity, along the direction from approaching the opening to away from the opening, perpendicular to the axial extension direction of the adjustment core, the area of ​​the cross section of the first inner mold core segment gradually increases.

4. The device forming tool according to claim 3, characterized in that: A groove is provided at one end of the adjusting core close to the opening; The groove and the core protrusion are clamped together; or, the inner peripheral wall of the groove is provided with a groove thread, the outer peripheral wall of the core protrusion is provided with a protrusion thread, and the adjustment core and the first inner core segment are screwed together through the groove thread and the protrusion thread.

5. The device forming tool according to any one of claims 1 to 4, characterized in that: The adjustment core channel includes a first channel section and multiple second channel sections that are interconnected. The first channel section extends along the axial direction of the adjustment core, and the second channel section extends away from the end of the first channel section toward the inner wall surface close to the pressure member. The extension direction of the first channel section intersects with the extension direction of the second channel section.

6. The device molding tool according to claim 5, characterized in that: A plurality of the second channel segments are arranged along the circumferential direction of the adjusting core; and / or a plurality of the second channel segments are arranged along the axial direction of the adjusting core.

7. The device molding tool according to claim 6, characterized in that: The outer mold core has an outer mold core cavity and an outer mold core channel, the outer mold core cavity is communicated with the outer mold core channel, and the outer mold core cavity is located on a side of the outer mold core channel close to the pressure-applying member; Part of the inner mold core is inserted into the outer mold core channel, at least part of the pressure member is located in the outer mold core cavity, and the outer peripheral wall of the pressure member located in the outer mold core cavity abuts against the inner peripheral wall of the outer mold core cavity.

8. The device forming tool according to claim 7, characterized in that: Outside the cavity, along a direction from close to the opening to away from the opening, perpendicular to the axial extension direction of the inner mold core, the area of ​​the cross section of the outer mold core cavity gradually decreases.

9. The device forming tool according to claim 8, characterized in that: The outer mold core may be a metal mold core, the inner mold core may be any one of a metal mold core, a ceramic mold core and a plastic mold core, and the adjustment core may be any one of a metal mold core, a ceramic mold core and a plastic mold core.

10. A device molding system, characterized in that: A device forming tool comprising a forming die, a supply part and a device forming tool as claimed in any one of claims 1 to 9, wherein the forming die has a forming cavity, the device forming tool is located in the forming cavity, and a forming area for placing a workpiece to be formed is provided between the device forming tool and the inner wall of the forming cavity; The supply member is communicated with an inner mold core channel of the device molding tool.

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