Upper ejection reset mechanism for die holder of hot die forging equipment

Abstract

The invention relates to an upper ejection reset mechanism for a die holder of hot die forging equipment, and belongs to the technical field of hot die forging equipment. The upper material ejection reset mechanism comprises an equipment body, a hot mold tool and a mold, the equipment body comprises an equipment base and an equipment top seat, the hot mold tool comprises an upper mold body and a lower mold body which are arranged between the equipment base and the equipment top seat, and the mold is fixed between the upper mold body and the lower mold body. The upper die body is provided with an ejection reset mechanism, the ejection reset mechanism comprises a first ejection rod, a first elastic piece for driving the first ejection rod to reset, a second ejection rod and a second elastic piece for driving the second ejection rod to reset, and the first ejection rod and the second ejection rod are matched in an abutting mode; the first ejector rod corresponds to a hydraulic drive of the equipment body, and the second ejector rod corresponds to a forge piece. Through the arrangement of the upper ejection reset mechanism, the probability that the forge piece is defective by the upper ejection mechanism is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of hot die forging equipment, and in particular to a material ejection resetting mechanism for a die base of hot die forging equipment. Background Art

[0002] Hot die forging equipment, also known as hot die forging hydraulic press or hot die forging press, is a forging equipment that uses dies to achieve hot forming of metal blanks. Hot die forging equipment is mainly used to manufacture high-strength, high-wear-resistant, high-precision metal workpieces, such as shafts, discs, flanges, etc.

[0003] Existing hot die forging equipment includes an equipment body for support and fixation, a hydraulic transmission system, an electronic control system, etc. During forging, hot die tooling is required to fix different molds on the equipment body. Existing hot die tooling includes an upper mold body and a lower mold body, and the mold is fixed between the upper mold body and the lower mold body. After the forging is formed in the mold, it needs to be ejected by an ejection mechanism. The equipment body usually has an upper ejection mechanism and a lower ejection mechanism, and the ejection mechanism of the equipment body is driven by hydraulics. Therefore, the upper mold body and the lower mold body also need an upper ejection mechanism and a lower ejection mechanism corresponding to the upper ejection mechanism and the lower ejection mechanism, respectively.

[0004] The upper ejection mechanism and the lower ejection mechanism are slidably installed on the corresponding mold body. After the forging is completed, the lower ejection mechanism drives the lower ejection mechanism to move upward, and the upper ejection mechanism drives the upper ejection mechanism to move downward to realize the discharge of the forging. After the upper ejection mechanism and the lower ejection mechanism are reset, the lower ejection mechanism can be reset and descended under its own gravity, but the upper ejection mechanism still remains in a descending state. The upward reset of the upper ejection mechanism is achieved by the abutment between the forging and the upper ejection mechanism during the next forging. The impact force during forging is relatively large. The method of resetting the upper ejection mechanism through the forging causes greater damage to the upper ejection mechanism, and burrs, indentations and other undesirable defects appear on the surface of the forging. The existing structure can solve the above problems, but the structure is generally complex and inconvenient to assemble. Summary of the invention

[0005] In order to reduce the probability of defects caused by the ejection mechanism to the forging and increase the service life of the ejection mechanism, the present application provides.

[0006] The present application provides a top-loading material reset mechanism for a die base of a hot die forging device, which adopts the following technical solution: A material ejection resetting mechanism for a die base of hot die forging equipment comprises an equipment body, a hot die tooling and a die, wherein the equipment body comprises an equipment base and an equipment top base, the hot die tooling comprises an upper die body and a lower die body arranged between the equipment base and the equipment top base, the die is fixed between the upper die body and the lower die body, the upper die body is provided with a material ejection resetting mechanism, the material ejection resetting mechanism comprises a first ejector rod, a first elastic member driving the first ejector rod to reset, a second ejector rod and a second elastic member driving the second ejector rod to reset, the first ejector rod and the second ejector rod are abutted and matched, the first ejector rod and the hydraulic drive of the equipment body are correspondingly arranged, and the second ejector rod and the forging are correspondingly arranged.

[0007] By adopting the above technical scheme, before the forging is ejected, the first push rod and the second push rod on the upper mold body of the hot forging equipment are respectively at the top position under the action of the first elastic member and the second elastic member, that is, the second push rod and the forging are in an interval state, and the hydraulic drive of the equipment body is started to push the first push rod downward first, and then the first push rod drives the second push rod to move downward, and the push rod of the mold is pushed by the second push rod, thereby pushing the forging out of the mold. The overall structure of the above-mentioned ejection material reset mechanism is relatively simple and easy to install, which can reduce the probability of the push rod of the upper mold body damaging the forging and improve the forming yield of the forging.

[0008] Optionally, the upper mold body is provided with a placement countersunk hole for sliding installation of the first push rod, the first elastic member is sleeved on the first push rod, the end of the first push rod has a first limiting portion for the first elastic member to abut against, and the other end of the first elastic member abuts against the stepped surface of the placement countersunk hole.

[0009] By adopting the above technical scheme, the installation structure of the first push rod in the upper mold body and the placement of the first elastic member are disclosed. The first push rod is limited and arranged in the countersunk hole. The first elastic member is sleeved on the first push rod, and its two ends are respectively abutted against the first limit part and the stepped surface of the countersunk hole. The first elastic member can make the first push rod have a tendency to always move upward. When the hydraulic drive of the equipment body is reset, the first elastic member drives the first push rod to reset upward. The cooperation method of the first push rod and the first elastic member is simple and easy to assemble.

[0010] Optionally, the upper mold body is provided with at least three groups of the first push rods, and the first push rods are evenly spaced.

[0011] By adopting the above technical solution, multiple groups of first push rods are set up to form multi-point push on the second push rod, which can evenly disperse the driving force of the equipment body to the first push rod, thereby improving the stability and accuracy of forging demolding.

[0012] Optionally, the second push rod is a special-shaped plate adapted to the shape of the forging, the second push rod is provided with a plurality of limit plates, the upper mold body is provided with a guide fixing rod corresponding to the limit plates and used to guide the sliding of the second push rod, and the second elastic member is sleeved on the guide fixing rod.

[0013] By adopting the above technical scheme, the installation structure of the second push rod is disclosed. The second push rod is replaced according to the shape of the forging to improve the ejection effect. The limiting rod of the second push rod and the second elastic member are sleeved together, so that the second push rod is located away from the forging in a normal state, so as to reduce the influence of the second push rod on the forging when the upper mold body moves downward.

[0014] Optionally, the guide fixing rod includes a fixing portion and a guiding portion, the fixing portion is fixedly connected to the upper mold body, and the limiting plate has a guiding hole for the guiding portion to pass through.

[0015] By adopting the above technical scheme, the specific structure of the guide fixing rod is disclosed, and the fixing part and the upper mold body are fixedly connected to increase the overall stability of the guide fixing rod. The limiting rod is slidably matched with the guide hole and the guide part, so that the limited sliding match between the second push rod and the guide fixing rod is realized. The guiding fixing rod can guide the sliding of the second push rod, thereby reducing the probability of the second push rod tipping over.

[0016] Optionally, the upper mold body has a sliding groove for the limiting portion to slide, and the upper mold body has a positioning surface in the sliding groove for one end of the second elastic member to abut, and the other end of the second elastic member abuts against the bottom of the limiting portion.

[0017] By adopting the above technical solution, the limiting portion is located in the sliding groove, and the two ends of the second elastic member respectively abut the positioning surface and the limiting portion, so that the second push rod has good sliding stability as a whole.

[0018] Optionally, the top of the fixing portion and the top of the second push rod are both in contact with the top wall of the sliding groove, and the depth of the sliding groove is greater than the length of the second push rod in the height direction.

[0019] By adopting the above technical solution, the depth of the sliding groove is greater than the thickness of the second push rod, so that the second push rod is completely in the sliding groove under normal conditions, reducing the wear caused by friction between the second push rod and other components, and facilitating maintenance by staff.

[0020] Optionally, the upper mold body is provided with a first protective structure covering the bottom opening of the sliding groove, the first protective structure includes a first sliding block horizontally slidably installed on the opposite side walls of the sliding groove and a third elastic member driving the first sliding block to reset, and a driving inclined surface is provided on the side of the first sliding block facing the second push rod. When the second push rod moves downward, the second push rod abuts against the driving inclined surface and drives the two first sliding blocks to slide away from each other.

[0021] By adopting the above technical scheme, the setting of the first protective structure can play a sealing and protective role for the opening of the sliding groove. Before the hot forging equipment is normally placed and the forging is pushed out, the first sliding protective structure covers the opening of the sliding groove, which can reduce the probability of external dust and impurities entering the sliding groove, ensure the cleanliness of the second push rod and the guide fixing rod, and improve the overall service life of the upper mold body. When the second push rod moves downward, the first slider moves in a direction away from each other under the action of the driving inclined surface, so that the first push rod can be pushed out of the sliding groove. When the second push rod is reset upward under the action of the second elastic member, the first slider is automatically reset horizontally under the action of the third elastic member, thereby realizing the sealing of the sliding groove again. The overall structure is simple, and no additional driving equipment is required to realize the sliding of the first slider.

[0022] Optionally, the second push rod is I-shaped, the sliding groove is adapted to the second push rod, the upper mold body is provided with a second protective structure at the corner of the sliding groove, the sliding structure of the second slider is consistent with the structure of the first slider, the second protective structure and the first protective structure slide alternately in the height direction, the second protective structure includes four second sliders, and the four second sliders form a rectangular plate.

[0023] By adopting the above technical solution, when the second push rod is an I-shaped structure, the first protective structure cannot be applied to the corners of two adjacent slide grooves. Therefore, the second protective structure is set to seal the slide groove at the corner, and the second protective structure and the first protective structure slide alternately in the height direction, so that the sliding of the second slider and the sliding of the first slider do not affect each other, thereby improving the sealing integrity of the slide groove.

[0024] Optionally, the first slider corresponding to each other and the adjacent second slider are both provided with a sealing structure on the bonding side, and the sealing structure includes a first magnetic sheet, a second magnetic sheet, an annular groove and an annular sealing ring. The first magnetic sheet and the second magnetic sheet are attracted to cooperate with each other, and the annular groove and the annular sealing ring are correspondingly arranged.

[0025] By adopting the above technical solution and setting the sealing structure, after the second push rod is combined, the sliding efficiency of the first slider and the second slider is improved through the mutual attraction of the first magnetic sheet and the second magnetic sheet, and the sealing effect of the two protective structures is further improved.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: The present application sets up an upper ejector reset mechanism, so that after the hydraulic drive part of the equipment body is reset, the first ejector rod and the second ejector rod can be automatically reset, thereby reducing the probability of the ejector rod of the upper die body damaging the forging, improving the forming quality of the forging, and having a simple structure and convenient assembly compared to the existing reset structure; The present application can guide the sliding of the second ejector rod by setting the guide fixing rod, thereby improving the sliding stability and the ejection efficiency of the second ejector rod for the forging; The present application can seal the bottom opening of the sliding groove by setting a protective structure, thereby reducing the probability of external dust and debris entering the sliding groove before the ejection operation of the second ejector rod, thereby increasing the service life of the second ejector rod. At the same time, the closing and sealing of the protective structure are combined with the ejection action of the second ejector rod, thereby simplifying the structure and facilitating assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of Example 1.

[0028] Figure 2 It is a schematic diagram of the explosion of the upper mold body of Example 1.

[0029] Figure 3 It is a cross-sectional schematic diagram of the ejection material resetting mechanism of Example 1.

[0030] Figure 4 yes Figure 3 A local enlarged schematic diagram of point A in the middle.

[0031] Figure 5 It is a schematic diagram of the top surface structure of the upper pad in Example 1.

[0032] Figure 6 2 is a schematic cross-sectional view of the guide fixing rod of Example 1.

[0033] Figure 7 It is a schematic diagram of the bottom structure of the upper mold base in Example 2.

[0034] Figure 8 It is a cross-sectional schematic diagram of the first protective structure of Example 2.

[0035] Fig. 9 It is a schematic cross-sectional view of the first protective structure and the second protective structure of Example 2 in the horizontal direction.

[0036] Fig.10 It is a structural schematic diagram of the sealing structure of Example 2.

[0037] Explanation of reference numerals: 1. Equipment body; 11. Equipment base; 12. Equipment top seat; 2. Hot mold tooling; 3. Mold; 4. Upper mold body; 41. Upper mold base; 411. Mounting groove; 412. Countersunk hole; 42. Upper pad; 421. Connecting hole; 43. Upper sub-mold base; 431. Sliding groove; 4311. Positioning surface; 4312. Strip groove; 4313. Corner groove; 432. Positioning groove; 433. First sliding groove; 4331. Limiting groove; 44. Side cylinder top column; 45. Placement countersunk hole; 46. Guide fixing rod; 461. Fixing part; 462. Guide part ; 5. Lower mold body; 6. Ejector reset mechanism; 61. First ejector rod; 611. First limiting portion; 62. First elastic member; 63. Second ejector rod; 631. Limiting plate; 632. Guide hole; 64. Second elastic member; 7. First protective structure; 71. First slider; 711. Elastic limiting portion; 7111. Guide surface; 712. Driving inclined surface; 72. Third elastic member; 8. Second protective structure; 81. Second slider; 811. Second inclined surface; 9. Sealing structure; 91. First magnetic sheet; 92. Second magnetic sheet; 93. Annular groove; 94. Annular sealing ring. DETAILED DESCRIPTION

[0038] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Since the embodiments disclosed in the present invention can be set in different directions, these terms indicating directions are only for illustration and should not be regarded as limitations. For example, "up" and "down" are not necessarily limited to directions opposite to or consistent with the direction of gravity. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of such features.

[0039] The following is combined with Figure 1-10 This application is described in further detail.

[0040] The embodiment of the present application discloses a material upper ejection resetting mechanism for a die base of a hot die forging device. Embodiment 1:

[0041] Reference Figure 1A material upper ejection resetting mechanism for a hot die forging equipment die base includes an equipment body 1, a hot die tooling 2 and a die 3. The structure of the equipment body 1 is consistent with the prior art, and includes an equipment base 11 and an equipment top seat 12. The equipment top seat 12 is slidably installed above the equipment base 11 by a hydraulic cylinder, and both the equipment top seat 12 and the equipment base 11 are provided with a hydraulic drive component. The hydraulic drive component is a linear hydraulic cylinder, which is used to push the forging in the die 3 out.

[0042] Combination Figure 2 and Figure 3 The hot die fixture 2 includes an upper die body 4 fixed to the top of the equipment base 11 and a lower die body 5 fixed to the bottom of the equipment top seat 12. The upper die body 4 and the lower die body 5 are slidably matched, and the upper and lower dies of the mold 3 are respectively arranged at the bottom of the upper die body 4 and the bottom of the lower die body 5. The upper die body 4 and the lower die body 5 are both installed with a material ejection mechanism corresponding to the hydraulic drive component. When the forging is completed in the mold 3, the hydraulic drive component first pushes the material ejection mechanism of the hot die fixture 2, and then pushes the forging in the mold 3 through the material ejection mechanism. Among them, the material ejection mechanism in the upper die body 4 is defined as a material ejection reset mechanism 6.

[0043] The upper mold body 4 is composed of an upper mold base 41, an upper pad 42 and an upper sub-mold base 43 from top to bottom in the height direction. The top of the upper mold base 41 is fixedly connected to the equipment top base 12 by a T-shaped nut. The bottom of the upper mold base 41 has a mounting groove 411 for mounting the upper pad 42 and the upper sub-mold base 43, and the upper pad 42 is fixed to the top of the mounting groove 411 by bolts. The upper sub-mold base 43 and the upper pad 42 fit each other, and the side wall of the upper mold base 41 is provided with a side cylinder top column 44 for pressing the upper sub-mold base 43. The bottom of the upper sub-mold base 43 is flush with the bottom surface of the upper mold base 41.

[0044] The ejector reset mechanism 6 includes a first ejector rod 61 disposed on the upper die base 41 , a first elastic member 62 driving the first ejector rod 61 to reset, a second ejector rod 63 disposed on the upper sub-die base 43 , and a second elastic member 64 driving the second ejector rod 63 to reset.

[0045] Reference Figure 3 and Figure 4 The first push rod 61 is in the shape of a screw with smooth side walls, and has a first limit portion 611 on its top. The upper die seat 41 has a countersunk hole 412 that penetrates the two side walls and is connected to the mounting groove 411, and the upper pad 42 has a connecting hole 421 corresponding to the countersunk hole 412. The countersunk hole 412 and the connecting hole 421 are combined to form a placement countersunk hole 45 for installing the first push rod 61. The first elastic member 62 is a rectangular spring, which is sleeved on the first push rod 61, and its two ends are respectively in contact with the stepped surface of the placement countersunk hole 45 and the first limit portion 611.

[0046] Reference Figure 5 and Figure 6The second push rod 63 is a special-shaped plate structure, and the shape of the second push rod 63 can be changed according to the shape of the forging. In this embodiment, the second push rod 63 is an I-shaped structure, and the two ends of the waist of the I-shaped structure extend in a direction away from each other to form an extension. The number and arrangement direction of the first push rods 61 are also adjusted according to the shape of the second push rods 63. In this embodiment, the upper die seat 41 is equipped with a total of three groups of first push rods 61, and the waists of the first push rods 61 and the second push rods 63 are correspondingly arranged, and the three groups of first push rods 61 are evenly spaced.

[0047] The bottom of the upper mold base 43 has a sliding groove 431 for the second ejector rod 63 to slide, and the cross section of the sliding groove 431 is adapted to the second ejector rod 63. Both ends of the two wing plates of the second ejector rod 63 have horizontally extending limit plates 631. The upper mold base 43 is provided with a guide fixing rod 46 in the sliding groove 431 to guide the second ejector rod 63 to slide, and the guide fixing rod 46 includes a fixing portion 461 and a guide portion 462.

[0048] The fixing portion 461 is in the shape of a rectangular plate, and the guide portion 462 is in the shape of a columnar rod. The fixing portion 461 and the guide portion 462 are combined to form a T-shaped guide fixing rod 46. The top of the upper sub-die seat 43 has a positioning groove 432 for placing the fixing portion 461. The fixing portion 461 is placed in the positioning groove 432 and then fixedly connected to the upper sub-die seat 43 by bolts. The limiting plate 631 has a guide hole 632 that penetrates the end faces on both sides and slides with the guide portion 462. The second elastic member 64 is a rectangular spring, which is sleeved on the guide portion 462. One end of the second elastic member 64 abuts against the bottom of the limiting plate 631, and the bottom wall of the sliding groove 431 is provided with a positioning surface 4311 for the other end of the second elastic member 64 to abut. Through the provision of the guide fixing rod 46, it can play a guiding role in the sliding of the second push rod 63, thereby improving the stability of the second push rod 63 when the forging is ejected downward.

[0049] The depth of the sliding groove 431 in the height direction is greater than the thickness of the second push rod 63. Under the normal action of the second elastic member 64, the second push rod 63 is completely in the sliding groove 431. When the hydraulic drive member is started, the first push rod 61 pushes the second push rod 63 out of the sliding groove 431 to push the forging of the mold 3.

[0050] The implementation principle of the upper ejector reset mechanism 6 on the die base of the hot die forging equipment in the embodiment of the present application is as follows: the first ejector rod 61 and the second ejector rod 63 are in a spaced state with the forging of the die 3 under the action of the first elastic member 62 and the second elastic member 64 respectively. When the equipment body 1 completes forging, the equipment top seat 12 drives the upper die body 4 and the upper die of the die 3 to move upward, and the hydraulic drive member is started to first drive the first ejector rod 61 to slide downward, and the first ejector rod 61 abuts against the second ejector rod 63 to drive the second ejector rod 63 to move downward, and finally the forging is removed from the die 3 by the second ejector rod 63; when the hydraulic drive member is reset, the first ejector rod 61 and the second ejector rod 63 are reset under the action of the first elastic member 62 and the second elastic member 64 respectively, thereby reducing the probability of the second ejector rod 63 causing damage to the forging during the next forging. Embodiment 2:

[0051] Compared with Example 1, the embodiment of the present application has the same structure as Example 1 except for the addition of a protective structure.

[0052] Reference Figure 7 and Figure 8 The protective structure is used to seal the sliding groove 431, so as to reduce the probability of external dust and flying chips entering the sliding groove 431 when the upper mold body 4 is placed and forged in daily life, and to improve the service life of the second push rod 63. This embodiment takes the shape of the second push rod 63 in Example 1 as an example. The second push rod 63 is in an I-shape with a protruding waist, and the connection between the waist and the wing plate has an arc chamfer, so the sliding groove 431 also has an arc guide surface that matches the arc chamfer.

[0053] The sliding groove 431 includes a plurality of strip grooves 4312 and corner grooves 4313 , and the protective structure includes a first protective structure 7 for sealing the strip grooves 4312 and a second protective structure 8 for sealing the corner grooves 4313 .

[0054] The first protective structure 7 includes a first slider 71 slidably mounted on the opposite side walls of the strip groove 4312 and a third elastic member 72 for driving the first slider 71 to reset. Both first sliders 71 are arranged to slide horizontally. The first slider 71 is a strip plate adapted to the length of the strip groove 4312. The upper mold base 43 has a first slide groove 433 for the first slider 71 to slide and install. The opposite side walls of the first slider 71 are provided with elastic limiting parts 711, and the elastic limiting parts 711 are fixed to the first slider 71 by springs. The end of the elastic limiting part 711 has a guide surface 7111 for guiding the insertion into the first slide groove 433, and the side wall of the first slide groove 433 has a limiting groove 4331 for the elastic limiting part 711 to be arranged. When installing the first slider 71, the first slider 71 is horizontally inserted into the first slide groove 433. The elastic limiting parts 711 located on both sides of the first slider 71 are squeezed toward the first slider 71 under the action of the spring. After the elastic limiting parts 711 and the limiting grooves 4331 correspond to each other, the elastic limiting parts 711 are automatically inserted into the limiting grooves 4331 to realize the limited installation of the first slider 71 and the first slide groove 433.

[0055] The third elastic member 72 is a spring member fixed to the side wall of the first sliding groove 433 . The first sliding block 71 has a positioning hole corresponding to the third elastic member 72 and is relatively far away from the side wall.

[0056] Reference Figure 8 and Fig. 9 The end surface of the first slider 71 facing the second push rod 63 is provided with a driving inclined surface 712. The cross-section formed by the driving inclined surfaces 712 of the two first sliders 71 is V-shaped. When the second push rod 63 moves downward, the two first sliders 71 can be driven to move away from each other. When the second push rod 63 is reset upward, the two first sliders 71 are automatically reset under the action of the first elastic member 62, and the strip groove 4312 is covered again.

[0057] The second protective structure 8 includes a second slider 81 slidably mounted on the corner groove 4313 and a fourth elastic member (not marked in the figure) driving the second slider 81 to reset. The corner groove 4313 is a rectangular groove, so it has four second sliders 81. The sliding structure and installation method of the second slider 81 are consistent with the first slider 71, but the second slider 81 and the first slider 71 are staggered in the height direction, wherein the second slider 81 is located above the first slider 71, and the second slider 81 also has a second inclined surface 811 for the second push rod 63 to abut, and the second inclined surfaces 811 of the four second sliders 81 are inclined toward the center of the rectangular groove. When the second push rod 63 is pushed downward by the first push rod 61, the four second sliders 81 move in a trend of spreading out in all directions. In order to ensure that the first slider and the second slider can be completely pushed into the upper mold base, when designing the upper mold base, the depth of the sliding groove can be increased, and the piston stroke of the hydraulic drive member can be adjusted at the same time.

[0058] Reference Fig.10 In order to improve the sealing effect of the first slider 71 and the second slider 81, the present embodiment further includes a sealing structure 9. The sealing structure 9 includes a first magnetic sheet 91 and a second magnetic sheet 92, and the first magnetic sheet 91 and the second magnetic sheet 92 are attracted to each other. In the first protective structure 7, the two ceramic sheets are respectively arranged on the side walls corresponding to each other of the first slider 71, and in the second protective structure 8, the two magnetic sheets are respectively arranged on the side walls corresponding to each other of the second slider 81.

[0059] The outer end face of the first slider 71 also has an annular groove 93, and the outer end face of the other first slider 71 is provided with an annular sealing ring 94 corresponding to the annular groove 93. When the first slider 71 and the second slider 81 are abutted, the first magnetic sheet 91 and the second magnetic sheet 92 are attracted to improve the connection stability of the two first sliders 71, and at the same time, the annular sealing ring 94 is inserted into the annular groove 93 to achieve sealing fit.

[0060] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A top-loading reset mechanism for a die base of a hot die forging device, comprising a device body (1), a hot die tool (2) and a die (3), wherein the device body (1) comprises a device base (11) and a device top base (12), the hot die tool (2) comprises an upper die body (4) and a lower die body (5) arranged between the device base (11) and the device top base (12), the die (3) is fixed between the upper die body (4) and the lower die body (5), and is characterized in that: The upper mold body (4) is provided with a material ejection reset mechanism (6), and the material ejection reset mechanism (6) comprises a first ejector rod (61), a first elastic member (62) for driving the first ejector rod (61) to reset, a second ejector rod (63), and a second elastic member (64) for driving the second ejector rod (63) to reset, the first ejector rod (61) and the second ejector rod (63) being abutted against each other, the first ejector rod (61) and the hydraulic drive of the equipment body (1) are correspondingly arranged, and the second ejector rod (63) and the forging are correspondingly arranged.

2. The upper ejection material reset mechanism for a die base of a hot die forging equipment according to claim 1, characterized in that: The upper mold body (4) is provided with a placement countersunk hole (45) for the first push rod (61) to be slidably installed, the first elastic member (62) is sleeved on the first push rod (61), the end of the first push rod (61) has a first limiting portion (611) for the first elastic member (62) to abut, and the other end of the first elastic member (62) abuts against the stepped surface of the placement countersunk hole (45).

3. The upper ejection material reset mechanism for a die base of a hot die forging equipment according to claim 2, characterized in that: The upper mold body (4) is provided with at least three groups of the first push rods (61), and the first push rods (61) are evenly spaced.

4. The upper ejection material reset mechanism for a die base of a hot die forging equipment according to claim 1, characterized in that: The second push rod (63) is a special-shaped plate adapted to the shape of the forging, the second push rod (63) is provided with a plurality of limit plates (631), the upper mold body (4) is provided with a guide fixing rod (46) corresponding to the limit plates (631) and used to guide the second push rod (63) to slide, and the second elastic member (64) is sleeved on the guide fixing rod (46).

5. The upper ejection material reset mechanism for a die base of a hot die forging device according to claim 4, characterized in that: The guide fixing rod (46) comprises a fixing portion (461) and a guiding portion (462); the fixing portion (461) is fixedly connected to the upper mold body (4); and the limiting plate (631) has a guiding hole (632) for the guiding portion (462) to pass through.

6. The upper ejection material reset mechanism for a die base of a hot die forging equipment according to claim 5, characterized in that: The upper mold body (4) has a sliding groove (431) for the limiting plate (631) to slide, and the upper mold body (4) has a positioning surface (4311) in the sliding groove (431) for one end of the second elastic member (64) to abut against, and the other end of the second elastic member (64) abuts against the bottom of the limiting plate (631).

7. The upper ejection material reset mechanism for a die base of a hot die forging equipment according to claim 6, characterized in that: The top of the fixing portion (461) and the top of the second push rod (63) both abut against the top wall of the sliding groove (431), and the depth of the sliding groove (431) is greater than the length of the second push rod (63) in the height direction.

8. The upper ejection material reset mechanism for a die base of a hot die forging equipment according to claim 6, characterized in that: The upper mold body (4) is also provided with a first protective structure (7) covering the bottom opening of the sliding groove (431), the first protective structure (7) comprising a first sliding block (71) horizontally slidably installed on the opposite side walls of the sliding groove (431) and a third elastic member (72) for driving the first sliding block (71) to return to its original position, and a driving inclined surface (712) is provided on the side of the first sliding block (71) facing the second push rod (63), and when the second push rod (63) moves downward, the second push rod (63) abuts against the driving inclined surface (712) and drives the two first sliding blocks (71) to slide in a direction away from each other.

9. The upper ejection material reset mechanism for a die base of a hot die forging device according to claim 8, characterized in that: The second push rod (63) is I-shaped, the sliding groove (431) is adapted to the second push rod (63), the upper mold body (4) is provided with a second protective structure (8) at the corner of the sliding groove (431), the second protective structure (8) comprises four second sliders (81), the four second sliders (81) form a rectangular plate, the sliding structure of the second slider (81) is consistent with the structure of the first slider (71), and the second protective structure (8) and the first protective structure (7) slide alternately in the height direction.

10. The upper ejection material reset mechanism for a die base of a hot die forging equipment according to claim 9, characterized in that: The first slider (71) and the second slider (81) corresponding to each other are both provided with a sealing structure (9) on the bonding side, the sealing structure (9) comprising a first magnetic sheet (91), a second magnetic sheet (92), an annular groove (93) and an annular sealing ring (94), the first magnetic sheet (91) and the second magnetic sheet (92) being attracted to each other, and the annular groove (93) and the annular sealing ring (94) being provided correspondingly.

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