Main die capable of preventing material blocking for upper shaft sleeve

Abstract

The utility model discloses a main die for an upper shaft sleeve capable of preventing material blocking. The main die comprises an outer sleeve, a containing groove is formed in the outer sleeve, an inner die is installed in the containing groove, a forming groove is formed in the inner die, a push plate is installed in the inner die, a push rod is installed at the bottom end of the push plate, and a check block is installed at the bottom end of the push rod. Through the arrangement of the inner mold, the push plate, the push rod and the check block, ejection of the shaft sleeve is achieved, the reserved groove is formed, the push rod and the check block can be stored, forming of the shaft sleeve is not affected, after the shaft sleeve is formed in the forming groove, the check block is pushed, force is applied to the push plate, the push plate is controlled to push the shaft sleeve in the forming groove to move towards the opening, and the shaft sleeve is formed. And the shaft sleeve is prevented from being clamped in the containing groove, the shaft sleeve is conveniently and rapidly taken out, and therefore the main mold has the material clamping prevention function.

Description

Technical Field

[0001] The utility model relates to the technical field of pressing dies, in particular to a main die for an upper shaft sleeve which can prevent material from getting stuck. Background Art

[0002] The shaft sleeve is a common component used in mechanical equipment and is usually made by stamping, milling or powder pressing. During the metal powder pressing process, the finished product will fit tightly with the mold due to the stamping force, causing the shaft body to be stuck in the mold and difficult to remove normally. The shaft body needs to be removed by other devices, and there is a certain probability that the shaft sleeve will crack or break when removing the material, which affects the product quality and is not flexible enough to use. Therefore, a main mold for an upper shaft sleeve that prevents material from getting stuck is provided. Utility Model Content

[0003] The utility model aims to provide a main mold for an upper shaft sleeve which can prevent material from getting stuck, so as to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a main mold for an upper shaft sleeve to prevent material jamming, comprising an outer sleeve, a placement groove is provided inside the outer sleeve, and an inner mold is installed inside the placement groove, a molding groove is provided inside the inner mold, a push plate is installed inside the inner mold, and a push rod is installed at the bottom end of the push plate, and a stop block is installed at the bottom end of the push rod.

[0005] Preferably, a reserved groove is provided at the bottom end of the inner part of the outer sleeve, and the position of the reserved groove corresponds to the position of the push rod.

[0006] Preferably, a mounting plate is installed at the bottom end of the push plate, a groove is provided on the outer side of the mounting plate, and a sealing rubber ring is installed in the groove.

[0007] Preferably, a butt joint is provided at the top end of the outer sleeve, a cover is installed at the top end of the butt joint, a hexagonal block is installed at the top end of the cover, and a thimble penetrates the central axis of the cover and the hexagonal block.

[0008] Preferably, a compression spring is installed at the top of the hexagonal block, and the compression spring is sleeved on the outside of the ejector pin. A pressing block is installed at the top of the ejector pin, and the diameter of the pressing block is greater than the diameter of the compression spring.

[0009] Preferably, a clamping seat is provided on both sides of the butt joint tube, a clamping block is provided on the inner side wall of the cover body, and a clamping structure is formed between the clamping block and the clamping seat.

[0010] Preferably, a sealing plate is installed on the inner side of the cover body, and a sealing gasket is installed on the top end of the inner side of the cover body.

[0011] Preferably, mounting seats are installed on both sides of the cover body, and fixing pins are installed inside the mounting seats. A return spring is provided between the fixing pin and the mounting seat, and a pull rod is installed on one side of the fixing pin.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] (1) The inner mold, the push plate, the push rod and the stopper are provided to realize the ejection of the sleeve. The reserved groove can accommodate the push rod and the stopper without affecting the forming of the sleeve. After the sleeve is formed inside the forming groove, the stopper is pushed to apply force to the push plate, and the push plate is controlled to push the sleeve inside the forming groove to move toward the opening, so as to prevent the sleeve from being stuck inside the placement groove, and facilitate the quick removal of the sleeve, thereby making the main mold have an anti-stuck material function;

[0014] (2) The hexagonal block, the ejector pin, the pressing block and the compression spring are provided to prevent the ejector pin from getting stuck with the sleeve. When the ejector pin moves downward and the sleeve is extruded, the pressing block contacts the compression spring and compresses the compression spring. When the stamping device leaves the pressing block, the pressing block is not subjected to force and is pushed upward by the elastic force of the compression spring, driving the ejector pin to move upward and slide inside the sleeve, thereby preventing the ejector pin from getting stuck with the entire sleeve, thereby further improving the anti-jamming effect.

[0015] (3) By providing a butt joint tube, a cover body, a fixing pin, a mounting seat, a clamping seat, a positioning hole and a clamping block, convenient disassembly and assembly are achieved. The appearance of the clamping seat is "L"-shaped. With the use of the clamping block, the cover body can rotate through a small arc to drive the clamping block to engage with the bottom end of the clamping seat, which effectively reduces the consumption of physical strength. The fixing pin will be pushed into the interior of the positioning hole by the elasticity of the return spring to lock the position of the cover body, preventing the cover body from falling off from the butt joint tube, thereby improving the flexibility of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a front view cross-sectional structural schematic diagram of the utility model;

[0018] Figure 2 This is a front view structural schematic diagram of the utility model;

[0019] Figure 3 This is a schematic diagram of a partial cross-sectional structure of the outer sleeve of the utility model;

[0020] Figure 4 This is a schematic diagram of a partial cross-sectional structure of the cover body of the utility model;

[0021] Figure 5 It is a schematic diagram of the partial structure of the butt-joint pipe of the utility model from a side view.

[0022] Description of reference numerals in the figures:

[0023] 1. Outer sleeve; 2. Placement groove; 3. Inner mold; 4. Butt tube; 5. Cover body; 6. Hexagonal block; 7. Ejector pin; 8. Press block; 9. Compression spring; 10. Sealing plate; 11. Fixing pin; 12. Forming groove; 13. Push plate; 14. Reserved groove; 15. Push rod; 16. Block; 17. Mounting seat; 18. Pull rod; 19. Mounting plate; 20. Sealing rubber ring; 21. Clamp seat; 22. Positioning hole; 23. Clamp block; 24. Sealing pad; 25. Reset spring. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] See also Figure 1-5 The utility model provides an embodiment: a main mold for an upper shaft sleeve for preventing material from getting stuck, comprising an outer sleeve 1, a placement groove 2 is arranged inside the outer sleeve 1, and an inner mold 3 is installed inside the placement groove 2, a forming groove 12 is arranged inside the inner mold 3, a push plate 13 is installed inside the inner mold 3, and a push rod 15 is installed at the bottom end of the push plate 13, and a stopper 16 is installed at the bottom end of the push rod 15, a reserved groove 14 is arranged at the bottom end of the inner sleeve 1, and the position of the reserved groove 14 corresponds to the position of the push rod 15, a mounting plate 19 is installed at the bottom end of the push plate 13, a groove is arranged on the outside of the mounting plate 19, and a sealing rubber ring 20 is installed in the groove to improve the sealing performance;

[0027] Specifically, as shown in the figure, when in use, the push rod 15 and the stopper 16 can be accommodated by setting the reserved groove 14, without affecting the forming of the sleeve. After the sleeve is formed inside the forming groove 12, the stopper 16 is pushed to apply force to the push plate 13, and the push plate 13 is controlled to push the sleeve inside the forming groove 12 to move toward the opening;

[0028] The top of the outer sleeve 1 is provided with a butt joint tube 4, and the top of the butt joint tube 4 is installed with a cover body 5, the top of the cover body 5 is installed with a hexagonal block 6, and the center axis position of the cover body 5 and the hexagonal block 6 is penetrated by an ejector pin 7, the top of the hexagonal block 6 is installed with a compression spring 9, and the compression spring 9 is sleeved on the outside of the ejector pin 7, and the top of the ejector pin 7 is installed with a pressing block 8, and the diameter of the pressing block 8 is greater than the diameter of the compression spring 9;

[0029] Specifically, as shown in the figure, when the ejector pin 7 is moved downward to extrude the sleeve, the pressing block 8 will contact the compression spring 9 and compress the compression spring 9. When the stamping device leaves the pressing block 8, the pressing block 8 is not subjected to force and will be pushed upward by the elastic force of the compression spring 9, driving the ejector pin 7 to move upward and slide inside the sleeve to prevent the ejector pin 7 from being stuck with the whole.

[0030] A clamping seat 21 is provided on both sides of the butt-jointed tube 4, a clamping block 23 is provided on the inner side wall of the cover body 5, and a clamping structure is formed between the clamping block 23 and the clamping seat 21, a sealing plate 10 is installed on the inner side of the cover body 5, a sealing gasket 24 is installed on the top of the inner side of the cover body 5, mounting seats 17 are installed on both sides of the cover body 5, and a fixing pin 11 is installed inside the mounting seat 17, a return spring 25 is provided between the fixing pin 11 and the mounting seat 17, and a pull rod 18 is installed on one side of the fixing pin 11, and the fixing pin 11 is pushed into the inside of the positioning hole 22 by the elasticity of the return spring 25 to lock the position of the cover body 5;

[0031] Specifically, as shown in the figure, when in use, the outer shape of the card holder 21 is "L"-shaped, and with the use of the card block 23, the cover body 5 can rotate through a small arc to drive the card block 23 to engage with the bottom end of the card holder 21, effectively reducing physical energy consumption.

[0032] Working principle: When in use, first, take the upper shaft sleeve of the anti-stuck material with the main mold, put the placement groove 2 into the placement groove 2, under the action of gravity, the push plate 13 will push the push rod 15 and the stopper 16 to insert into the reserved groove 14 for hiding, then put the raw material into the molding groove 12, and take the cover body 5, pull the pull rod 18 to both sides, drive the fixing pin 11 to retract into the inside of the mounting seat 17, control the cover body 5 to buckle on the outside of the docking tube 4, after the cover is in place, control the cover body 5 to rotate in a small arc, drive the block 23 to snap into the bottom of the card seat 21, at this time, the fixing pin 11 is aligned with the positioning hole 22, and the fixing pin 11 will be elastically reset by the reset spring 25 Push it into the interior of the positioning hole 22 to lock the position of the cover body 5 to prevent the cover body 5 and the docking tube 4 from falling off. Then, take out the ejector pin 7, insert it into the interior of the forming groove 12 through the hole groove inside the cover body 5 and the hexagonal block 6, place the main mold on the stamping equipment, and stamp the raw material into a sleeve. After the sleeve is formed inside the forming groove 12, take out the inner mold 3 from the inside of the outer sleeve 1, use a tool to push the stopper 16, apply force to the push plate 13, and control the push plate 13 to push the sleeve inside the forming groove 12 to move toward the opening to avoid the sleeve from being stuck in the placement groove 2, so as to facilitate the quick removal of the sleeve, and finally complete the use of the main mold for the upper sleeve with anti-stuck material.

[0033] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A main mold for an upper shaft sleeve to prevent material jamming, comprising an outer sleeve (1), characterized in that: The outer sleeve (1) is provided with a placement groove (2) inside, and an inner mold (3) is installed inside the placement groove (2), a forming groove (12) is provided inside the inner mold (3), a push plate (13) is installed inside the inner mold (3), and a push rod (15) is installed at the bottom end of the push plate (13), and a stopper (16) is installed at the bottom end of the push rod (15).

2. The main mold for the upper shaft sleeve for preventing material from getting stuck according to claim 1, characterized in that: A reserved groove (14) is provided at the bottom end inside the outer sleeve (1), and the position of the reserved groove (14) corresponds to the position of the push rod (15).

3. The main mold for the upper shaft sleeve for preventing material from getting stuck according to claim 1, characterized in that: A mounting plate (19) is installed at the bottom end of the push plate (13), a groove is arranged on the outer side of the mounting plate (19), and a sealing rubber ring (20) is installed in the groove.

4. The main mold for the upper shaft sleeve for preventing material from getting stuck according to claim 1, characterized in that: The top end of the outer sleeve (1) is provided with a butt joint tube (4), the top end of the butt joint tube (4) is provided with a cover body (5), the top end of the cover body (5) is provided with a hexagonal block (6), and a thimble (7) penetrates the central axis of the cover body (5) and the hexagonal block (6).

5. The main mold for the upper shaft sleeve for preventing material from getting stuck according to claim 4, characterized in that: A compression spring (9) is installed at the top of the hexagonal block (6), and the compression spring (9) is sleeved on the outside of the ejector pin (7). A pressing block (8) is installed at the top of the ejector pin (7), and the diameter of the pressing block (8) is greater than the diameter of the compression spring (9).

6. The main mold for the upper shaft sleeve for preventing material from getting stuck according to claim 4, characterized in that: A clamping seat (21) is provided on both sides of the butt joint pipe (4), a clamping block (23) is provided on the inner side wall of the cover body (5), and a clamping structure is formed between the clamping block (23) and the clamping seat (21).

7. The main mold for the upper shaft sleeve for preventing material from getting stuck according to claim 6, characterized in that: A sealing plate (10) is installed on the inner side of the cover body (5), and a sealing gasket (24) is installed on the top end of the inner side of the cover body (5).

8. The main mold for the upper shaft sleeve for preventing material from getting stuck according to claim 6, characterized in that: Mounting seats (17) are installed on both sides of the cover body (5), and a fixing pin (11) is installed inside the mounting seat (17). A return spring (25) is provided between the fixing pin (11) and the mounting seat (17), and a pull rod (18) is installed on one side of the fixing pin (11).

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