Die stripping pull hammer assembly and die stripping pull hammer device

Abstract

The utility model relates to the technical field of dies, and discloses a die-stripping pull hammer assembly and a die-stripping pull hammer device, and the die-stripping pull hammer assembly comprises a pull rod suite which comprises at least one pull rod single body; a first connecting part is arranged at one axial end of each pull rod single body; the screw rod kit comprises a plurality of screw rod single bodies; a second connecting part is arranged at one axial end of each lead screw single body; a third connecting part is arranged at the other axial end of each screw rod single body and is suitable for being in threaded connection with a disassembled workpiece; the diameter of the third connecting part of at least one lead screw single body is larger than that of the third connecting part of the other lead screw single body. One axial end of the screw sleeve is detachably connected with the first connecting part, and the other end of the screw sleeve is detachably connected with the second connecting part. The mold removal pull hammer assembly provided by the utility model can be adapted to drawing mold removal occasions of mold wedge blocks, positioning pins and / or guide pillars with various different process tooth specifications.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a demolding pull hammer assembly and a demolding pull hammer device. Background Art

[0002] When demolding, due to the different specifications of the mold wedge blocks, various positioning pins and the tooth holes of the guide posts, and the existing demolding tools are usually special disposable demolding tooling kits, which cannot adapt to the pulling and demolding occasions of various mold wedge blocks, positioning pins and / or guide posts. Summary of the Utility Model

[0003] In view of this, the utility model provides a demolding pull hammer assembly and a demolding pull hammer device to solve the problem that the existing demolding tools cannot adapt to the pulling and demolding occasions of various mold wedge blocks, positioning pins and / or guide posts.

[0004] In the first aspect, the utility model provides a demolding pull hammer assembly, including:

[0005] A pull rod kit, including at least one pull rod monomer; a first connection portion is provided at one axial end of each pull rod monomer;

[0006] A lead screw kit, including a plurality of lead screw monomers; a second connection portion is provided at one axial end of each lead screw monomer;

[0007] At the other axial end of each lead screw monomer, a third connection portion is provided, and the third connection portion is adapted to be threadedly connected to the workpiece to be disassembled; and the diameter of the third connection portion of at least one lead screw monomer is greater than the diameter of the third connection portion of another lead screw monomer;

[0008] A wire sleeve, one axial end of which is adapted to be detachably connected to the first connection portion, and the other end is adapted to be detachably connected to the second connection portion.

[0009] Beneficial effects: The demolding pull hammer assembly provided by the utility model mainly includes a pull rod kit, a lead screw kit and a wire sleeve. Among them, the pull rod kit includes at least one pull rod monomer, and the lead screw kit includes a plurality of lead screw monomers of different specifications and models; the first connection portion of the pull rod monomer and the second connection portion of the lead screw monomer are detachably connected through the wire sleeve, so as to adapt to the pulling and demolding occasions of various mold wedge blocks, positioning pins and / or guide posts with different process tooth specifications.

[0010] In an optional embodiment, the pull rod kit includes a plurality of pull rod monomers, and the length of at least one pull rod monomer is greater than the length of another pull rod monomer.

[0011] Beneficial effects: To cope with the disassembly occasions of some relatively large, severely rusted and tightly fitted wedge-shaped workpieces, the operator can select a pull rod monomer with a longer length and a lead screw monomer with a larger specification and model.

[0012] In an alternative embodiment, a wire sleeve is axially provided with a threaded hole. One axial end of the threaded hole is adapted to be threadedly connected to the first connecting portion, and the other end is adapted to be threadedly connected to the second connecting portion.

[0013] Beneficial effects: Thus, a detachable connection between the wire sleeve and the first connecting portion and the second connecting portion is achieved, facilitating the replacement of different specifications and models of tie rod units and / or lead screw units during the actual form removal process.

[0014] In an alternative embodiment, a first limiting hole is radially provided on the wire sleeve, and a second limiting hole corresponding to the first limiting hole is radially provided on the first connecting portion. The second limiting hole is adapted to be coaxially arranged with the first limiting hole;

[0015] The form removal hammer assembly further includes a spring pin, and the spring pin is adapted to pass through the first limiting hole and the second limiting hole to limit the wire sleeve and the tie rod unit.

[0016] Beneficial effects: The variable diameter of the spring pin is utilized to achieve the detachable / close-fitting performance of the tie rod unit, the hammer body and the wire sleeve with relatively low assembly and disassembly frequencies, so as to prevent the spring pin from falling off during the intense impact and vibration of the tie rod unit.

[0017] In an alternative embodiment, each lead screw unit further includes a shaft shoulder portion, and the shaft shoulder portion is arranged at one end of the second connecting portion axially close to the third connecting portion. The shaft shoulder portion is adapted to abut against the end face of one axial end of the wire sleeve.

[0018] Beneficial effects: During the assembly process, axial limitation of the lead screw unit can be achieved by the abutment of the shaft shoulder portion against the end face of one axial end of the wire sleeve.

[0019] In an alternative embodiment, an auxiliary disassembly and assembly hole is radially provided on the shaft shoulder portion, and a pin is adapted to pass through the auxiliary disassembly and assembly hole to increase the torque for disassembly and assembly of the lead screw unit.

[0020] Beneficial effects: A pin is adapted to pass through the auxiliary disassembly and assembly hole, thereby increasing the torque of the human hand for disassembly and assembly of the lead screw unit during the assembly process.

[0021] In an alternative embodiment, a first knurled portion is circumferentially provided on the outer peripheral wall of the wire sleeve, and the first knurled portion is adapted to prevent slipping.

[0022] Beneficial effects: Thus, the gripping force of the human hand on the wire sleeve is increased during the fitting and disassembly of the wire sleeve and the lead screw unit.

[0023] In a second aspect, the present utility model further provides a form removal hammer device, including: a hammer body, and the form removal hammer assembly as described above;

[0024] A through hole is axially provided in the hammer body, and the tie rod unit is adapted to axially pass through the through hole, and the hammer body is adapted to axially reciprocate relative to the tie rod unit.

[0025] Beneficial effects: For the formwork removal pulling hammer device provided by the present utility model, the hammer body can be connected to any single pull rod according to the usage requirements. During assembly, the single pull rod axially passes through the through hole of the hammer body, and the first connecting portion of the single pull rod and the second connecting portion of the screw rod unit are detachably connected through a wire sleeve, so as to adapt to the pulling and formwork removal occasions of mold wedging blocks, positioning pins, and / or guide columns with various different process thread specifications.

[0026] In an optional embodiment, a limiting portion is provided at one end of the single pull rod axially away from the first connecting portion. The limiting portion is adapted to abut against the end face at one axial end of the hammer body, and the limiting portion is adapted to axially limit the hammer body.

[0027] The wire sleeve abuts against one end of the hammer body axially away from the limiting portion, and the wire sleeve is adapted to jointly axially limit the hammer body with the limiting portion.

[0028] Beneficial effects: By providing a limiting portion at one end of the single pull rod axially away from the first connecting portion, the axial end of the hammer body is axially limited through the limiting portion. At the same time, the wire sleeve abuts against one end of the hammer body axially away from the limiting portion, so that the other axial end of the hammer body is axially limited through the wire sleeve. During the working process, when the hammer body moves along the single pull rod from the end close to the wire sleeve to the end close to the limiting portion under the action of an external force and the hammer body abuts against the limiting portion, the hammer body instantaneously impacts the limiting portion axially, so as to convert the momentum of the hammer body into the pulling force of the single pull rod on the workpiece to be removed.

[0029] In an optional embodiment, a conical air inlet is formed by opening at one end of the hammer body axially close to the limiting portion; a conical valve plug portion is formed at one end of the limiting portion axially close to the hammer body, and the conical valve plug portion is adapted to abut against the inner peripheral wall of the conical air inlet.

[0030] Beneficial effects: By forming a conical air inlet on the hammer body and processing a conical valve plug portion on the single pull rod, when the hammer body hits the conical valve plug portion of the single pull rod at a high speed during the formwork removal and pulling operation of the workpiece, it has a larger impact surface, and the single pull rod has better anti-impact performance, so as to better convert the momentum of the hammer body into the pulling force of the screw rod unit.

[0031] In an optional embodiment, guard hand shoulders are convexly provided along the radial direction at both axial ends of the hammer body, and both guard hand shoulders are circumferentially arranged along the outer peripheral wall of the hammer body.

[0032] Beneficial effects: Guard hand shoulders are provided at both axial ends of the hammer body, so that when an operator holds the hammer body to accelerate the conversion of momentum and pulling force, the human hand has a better feel and a greater holding force on the hammer body.

[0033] In an alternative embodiment, a gripping portion is formed between two handguard shoulders, and a second knurling portion is circumferentially provided on the outer peripheral wall of the gripping portion, and the second knurling portion is adapted for anti-slip.

[0034] Beneficial effects: By circumferentially providing the second knurling portion on the outer peripheral wall of the gripping portion, when an operator holds the hammer body to accelerate the conversion of momentum and pulling force, the human hand has a better feel and a greater gripping force on the hammer body. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0036] Figure 1 A cross-sectional view of a formwork removal pulling hammer device according to an embodiment of the present invention;

[0037] Figure 2 A front view of a single pull rod of a formwork removal pulling hammer assembly according to an embodiment of the present invention;

[0038] Figure 3 A front view of a pull rod kit of a formwork removal pulling hammer assembly according to an embodiment of the present invention;

[0039] Figure 4 A front view of a single lead screw of a formwork removal pulling hammer assembly according to an embodiment of the present invention;

[0040] Figure 5 A front view of a lead screw kit of a formwork removal pulling hammer assembly according to an embodiment of the present invention;

[0041] Figure 6 A perspective view of a bushing of a formwork removal pulling hammer assembly according to an embodiment of the present invention;

[0042] Figure 7 A perspective view of a spring pin of a formwork removal pulling hammer assembly according to an embodiment of the present invention;

[0043] Figure 8 A perspective view of a hammer body of a formwork removal pulling hammer assembly according to an embodiment of the present invention;

[0044] Figure 9 A cross-sectional view of a hammer body of a formwork removal pulling hammer assembly according to an embodiment of the present invention;

[0045] Figure 10 A schematic diagram of the first assembly step of a formwork removal pulling hammer device according to an embodiment of the present invention;

[0046] Figure 11 Schematic diagram of the second assembly step of a formwork removal pulling hammer device according to an embodiment of the present utility model;

[0047] Figure 12 Schematic diagram of the third assembly step of a formwork removal pulling hammer device according to an embodiment of the present utility model;

[0048] Figure 13 Schematic diagram of the fourth assembly step of a formwork removal pulling hammer device according to an embodiment of the present utility model;

[0049] Figure 14 Schematic diagram after the assembly of a formwork removal pulling hammer device according to an embodiment of the present utility model is completed;

[0050] Figure 15 Top view structural diagram of a wedge block to be removed by a formwork removal pulling hammer device according to an embodiment of the present utility model;

[0051] Figure 16 Schematic diagram of a working principle when a formwork removal pulling hammer device according to an embodiment of the present utility model removes the wedge block;

[0052] Figure 17 Schematic diagram of another working principle when a formwork removal pulling hammer device according to an embodiment of the present utility model removes the wedge block;

[0053] Figure 18 Top view structural diagram of a guide post to be removed by a formwork removal pulling hammer device according to an embodiment of the present utility model;

[0054] Figure 19 Schematic diagram of a working principle when a formwork removal pulling hammer device according to an embodiment of the present utility model removes the guide post;

[0055] Figure 20 Schematic diagram of another working principle when a formwork removal pulling hammer device according to an embodiment of the present utility model removes the guide post.

[0056] Explanation of reference numerals:

[0057] 10. Tie rod kit; 100. Tie rod unit; 101. First connection part; 102. Second limiting hole; 103. Limiting part; 104. Tapered valve plug part; 11. First tie rod; 12. Second tie rod;

[0058] 20. Lead screw kit; 200. Lead screw unit; 201. Second connection part; 202. Third connection part; 203. Axle shoulder part; 204. Auxiliary disassembly and assembly hole; 21. First lead screw; 22. Second lead screw; 23. Third lead screw; 24. Fourth lead screw; 25. Fifth lead screw; 26. Sixth lead screw;

[0059] 30. Silk sleeve; 301. Screw hole; 302. First limiting hole; 303. First knurled part

[0060] 40. Spring pin

[0061] 50. Hammer body; 501. Through hole; 502. Conical air port; 503. Guard hand shoulder; 504. Holding part; 505. Second knurled part

[0062] 60. Workpiece to be wedged; 61. Wedging block; 611. First process thread hole

[0063] 70. Template surface; 71. Guide pillar; 711. Second process thread hole Detailed implementation manners

[0064] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some but not all of the embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0065] The following combines Figures 1 to 20 , to describe the embodiments of the present utility model.

[0066] According to an embodiment of the present utility model, on the one hand, a demoulding pull hammer assembly is provided, including:

[0067] A pull rod kit 10, including at least one pull rod monomer 100; Please refer to Figure 2 shown in the figure. At one axial end of each pull rod monomer 100, a first connection part 101 is provided;

[0068] A lead screw kit 20, including a plurality of lead screw monomers 200; Please refer to Figure 4 shown in the figure. At one axial end of each lead screw monomer 200, a second connection part 201 is provided;

[0069] Still referring to Figure 4 shown in the figure. At the other axial end of each lead screw monomer 200, a third connection part 202 is provided, and the third connection part 202 is adapted to be threadedly connected to the workpiece to be disassembled; and the diameter of the third connection part 202 of at least one lead screw monomer 200 is greater than the diameter of the third connection part 202 of another lead screw monomer 200;

[0070] A silk sleeve 30, one axial end of which is adapted to be detachably connected to the first connection part 101, and the other end is adapted to be detachably connected to the second connection part 201.

[0071] It should be noted that the lead screw kit 20 includes a plurality of lead screw units 200. Please refer to Figure 5 As shown, for better illustration and understanding, Figure 5 in which six lead screw units 200 of different specifications and models are exemplarily given, namely the first lead screw 21, the second lead screw 22, the third lead screw 23, the fourth lead screw 24, the fifth lead screw 25 and the sixth lead screw 26. Among them, the diameter specification of the third connecting portion 202 of the first lead screw 21 can be M3, the diameter specification of the third connecting portion 202 of the second lead screw 22 can be M4, the diameter specification of the third connecting portion 202 of the third lead screw 23 can be M5, the diameter specification of the third connecting portion 202 of the fourth lead screw 24 can be M6, the diameter specification of the third connecting portion 202 of the fifth lead screw 25 can be M8, and the diameter specification of the third connecting portion 202 of the sixth lead screw 26 can be M10, so as to adapt to the pulling and demolding occasions of die wedging blocks, positioning pins and / or guide pillars with a variety of different process thread specifications, enhancing the versatility of the demolding hammer assembly for the die / machinery industry; the specification models and quantities of the lead screw units 200 can be adjusted according to actual usage requirements, and no specific limitations are made here.

[0072] Furthermore, the diameters of the second connecting portions 201 of each lead screw unit 200 are the same.

[0073] The demolding hammer assembly provided by the present utility model mainly includes a pull rod kit 10, a lead screw kit 20 and a lead screw nut 30. Among them, the pull rod kit 10 includes at least one pull rod unit 100, and the lead screw kit 20 includes a plurality of lead screw units 200 of different specifications and models; the first connecting portion 101 of the pull rod unit 100 is detachably connected to the second connecting portion 201 of the lead screw unit 200 through the lead screw nut 30, so as to adapt to the pulling and demolding occasions of die wedging blocks, positioning pins and / or guide pillars with a variety of different process thread specifications.

[0074] In some embodiments, the pull rod kit 10 includes a plurality of pull rod units 100, and at least one of the pull rod units 100 has a length greater than that of another pull rod unit 100.

[0075] It should be noted that the pull rod kit 10 can include one or more pull rod units 100. Please refer to Figure 3 As shown, for better illustration and understanding, Figure 3 in which two pull rod units 100 of different specifications and models are exemplarily given, namely the first pull rod 11 and the second pull rod 12. Among them, the length of the second pull rod 12 is greater than that of the first pull rod 11. It can be understood that, please also combine Figure 1As shown, the hammer body 50 has a longer acceleration distance than the first pull rod 11 within the limited stroke of the second pull rod 12. According to the momentum formula P = MV and the relationship between velocity, acceleration and time V = (u + a)*t (where P is momentum, M is mass, V is velocity, u is initial velocity, a is acceleration, and t is time), it can be known that the momentum generated by the hammer body within the limited acceleration distance of the second pull rod 12 is greater, that is, the converted pull force on the pull rod is greater. Therefore, for the disassembly of some relatively large, severely rusted, and highly tightly fitted wedging workpieces, the operator can select a pull rod monomer 100 with a longer length and a lead screw monomer 200 with a larger specification model.

[0076] In some embodiments, please refer to Figure 6 As shown, the wire sleeve 30 is axially provided with a threaded hole 301. Please also refer to Figure 1 As shown, one axial end of the threaded hole 301 is adapted to be threadedly connected to the first connection portion 101, and the other end is adapted to be threadedly connected to the second connection portion 201, so as to realize the detachable connection between the wire sleeve 30 and the first connection portion 101 and the second connection portion 201, facilitating the replacement of pull rod monomers 100 and / or lead screw monomers 200 with different specification models during the actual form removal process.

[0077] Optionally, the diameter specification of the threaded hole 301 is M10, the diameter specification of the first connection portion 101 of the pull rod monomer 100 is M10, and the diameter specification of the second connection portion 201 of the lead screw monomer 200 is M10.

[0078] In some embodiments, please refer to Figure 6 As shown, the wire sleeve 30 is radially provided with a first limiting hole 302. Please refer to Figure 2 As shown, the first connection portion 101 is radially provided with a second limiting hole 102 corresponding to the first limiting hole 302, and the second limiting hole 102 is adapted to be coaxially arranged with the first limiting hole 302;

[0079] Please also refer to Figure 1 and Figure 14 As shown, the form removal hammer assembly further includes a spring pin 40, and the spring pin 40 is adapted to pass through the first limiting hole 302 and the second limiting hole 102 to limit the wire sleeve 30 and the pull rod monomer 100.

[0080] It should be noted that the aperture of the first limiting hole 302 on the wire sleeve 30 is designed with a deviation of -0.02 mm, and the diameter of the spring pin 40 has a deviation of +0.03. The variable diameter of the spring pin 40 is used to realize the detachable / firmly fitted performance of the pull rod monomer 100, the hammer body 50 and the wire sleeve 30 with a relatively low installation and disassembly frequency, so as to prevent the spring pin 40 from falling off during the intense impact and vibration of the pull rod monomer 100.

[0081] In some embodiments, please refer to Figure 4As shown, each lead screw unit 200 further includes a shaft shoulder 203, and the shaft shoulder 203 is disposed at one end of the second connecting portion 201 along the axial direction close to the third connecting portion 202. Please also refer to Figure 1 and Figure 14 As shown, the shaft shoulder 203 is adapted to abut against the end face of one axial end of the wire sleeve 30.

[0082] In this embodiment, by providing the shaft shoulder 203 at one end of the second connecting portion 201 along the axial direction close to the third connecting portion 202, during the assembly process, the shaft shoulder 203 can abut against the end face of one axial end of the wire sleeve 30, thereby axially limiting the lead screw unit 200.

[0083] In some embodiments, please refer to Figure 4 As shown, an auxiliary disassembly and assembly hole 204 is radially formed on the shaft shoulder 203. Please also refer to Figure 1 and Figure 14 As shown, a pin is adapted to pass through the auxiliary disassembly and assembly hole 204, thereby increasing the torque of the human hand for disassembling and assembling the lead screw unit 200 during the assembly process.

[0084] Furthermore, the diameter of the auxiliary disassembly and assembly hole 204 can be φ4 mm.

[0085] In some embodiments, please refer to Figure 4 As shown, a first knurled portion 303 is circumferentially provided on the outer circumferential wall of the wire sleeve 30, and the first knurled portion 303 is adapted to prevent slipping, thereby increasing the gripping force of the human hand on the wire sleeve 30 when the wire sleeve 30 and the lead screw unit 200 are disassembled and assembled.

[0086] According to an embodiment of the present invention, on the other hand, a mold removal pull hammer device is further provided, including: a hammer body 50, and a mold removal pull hammer assembly as described above;

[0087] A through hole 501 is axially formed in the hammer body 50, and the pull rod unit 100 is adapted to axially pass through the through hole 501, and the hammer body 50 is adapted to reciprocate axially relative to the pull rod unit 100.

[0088] For the mold removal pull hammer device provided in this embodiment, the hammer body 50 can be connected to any pull rod unit 100 according to the use requirements. During assembly, the pull rod unit 100 axially passes through the through hole 501 of the hammer body 50, and the first connecting portion 101 of the pull rod unit 100 and the second connecting portion 201 of the lead screw unit 200 are detachably connected through the wire sleeve 30, so as to adapt to the pulling and mold removal occasions of mold wedging blocks, positioning pins, and / or guide posts with various different process thread specifications.

[0089] It should be noted that, please refer to Figure 8As shown, the specifications of the hammer body 50 can be φ54*120 mm, the material can be P20, and the mass can be 1.2 kg. The overall shape of the hammer body 50 is a through-cylindrical structure with a small middle part and R-corner edges at both ends with shoulder-shaped protrusions.

[0090] Furthermore, the diameter of the through-hole 501 can be φ11 mm.

[0091] In some embodiments, please refer to Figure 2 As shown, a limiting portion 103 is provided at one end of the pull rod unit 100 axially away from the first connecting portion 101. Please also refer to Figure 12 As shown, the limiting portion 103 is adapted to abut against the end face of one axial end of the hammer body 50, and the limiting portion 103 is adapted to axially limit the hammer body 50;

[0092] Please also refer to Figure 13 As shown, the wire sleeve 30 abuts against one axial end of the hammer body 50 away from the limiting portion 103, and the wire sleeve 30 is adapted to jointly axially limit the hammer body 50 with the limiting portion 103.

[0093] In this embodiment, by providing the limiting portion 103 at one end of the pull rod unit 100 axially away from the first connecting portion 101, the axial end of the hammer body 50 is axially limited by the limiting portion 103. At the same time, the wire sleeve 30 abuts against one axial end of the hammer body 50 away from the limiting portion 103, so that the other axial end of the hammer body 50 is axially limited by the wire sleeve 30; during the working process, when the hammer body 50 moves along the pull rod unit 100 from the end close to the wire sleeve 30 to the end close to the limiting portion 103 under the action of an external force, and the hammer body 50 abuts against the limiting portion 103, the hammer body 50 instantaneously impacts the limiting portion 103 axially, thereby converting the momentum of the hammer body 50 into the pulling force of the pull rod unit 100 on the workpiece to be disassembled.

[0094] In some embodiments, please also refer to Figure 8 and Figure 9 As shown, a tapered air valve port 502 is formed at one axial end of the hammer body 50 close to the limiting portion 103; please also refer to Figure 2 As shown, a tapered valve plug portion 104 is formed at one axial end of the limiting portion 103 close to the hammer body 50. Please also refer to Figure 10 As shown, the tapered valve plug portion 104 is adapted to abut against the inner peripheral wall of the tapered air valve port 502.

[0095] In this embodiment, a tapered air valve port 502 is formed by opening on the hammer body 50, and a tapered valve plug portion 104 is machined on the single pull rod 100, so that when the hammer body 50 hits the tapered valve plug portion 104 of the single pull rod 100 at high speed during the operation of removing the mold and pulling the workpiece, it has a larger impact surface, and the single pull rod 100 has better impact resistance, so as to better convert the momentum of the hammer body 50 into the pulling force of the screw rod unit 200.

[0096] In some embodiments, please also refer to Figure 8 and Figure 9 As shown, on both axial ends of the hammer body 50, there are handguard shoulders 503 protruding radially, and both handguard shoulders 503 are arranged circumferentially along the outer peripheral wall of the hammer body 50.

[0097] In this embodiment, handguard shoulders 503 are arranged at both axial ends of the hammer body 50, so that when an operator holds the hammer body 50 to accelerate the conversion of momentum and pulling force, the human hand has a better feel and a greater holding force on the hammer body 50.

[0098] In some embodiments, please also refer to Figure 8 and Figure 9 As shown, a holding portion 504 is formed between the two handguard shoulders 503, and a second knurling portion 505 is arranged circumferentially on the outer peripheral wall of the holding portion 504, and the second knurling portion 505 is suitable for anti-slip.

[0099] In this embodiment, by arranging the second knurling portion 505 circumferentially on the outer peripheral wall of the holding portion 504, when an operator holds the hammer body 50 to accelerate the conversion of momentum and pulling force, the human hand has a better feel and a greater holding force on the hammer body 50.

[0100] Furthermore, the surface of the hammer body 50 is subjected to nitriding heat treatment to enhance the rust prevention and durability of the hammer body.

[0101] The following will be described in a unified manner in combination with Figures 10 - 14 As shown, the assembly process of the mold removing pull hammer device provided by the present utility model is described.

[0102] Axially pass the single pull rod 100 through the through hole 501 of the hammer body 50;

[0103] Thread-connect one end of the wire sleeve 30 provided with the first limiting hole 302 to the first connecting portion 101 of the single pull rod 100 until the first limiting hole 302 on the wire sleeve 30 is completely aligned with the second limiting hole 102 on the single pull rod 100;

[0104] Pass the spring pin 40 through the first limiting hole 302 and the second limiting hole 102, and make both ends of the spring pin 40 not protrude from the outer cylindrical surface of the wire sleeve 30;

[0105] Select a screw rod unit 200 with a diameter specification suitable for the form removal requirement, and thread-connect the second connecting portion 201 of the screw rod unit 200 to the other end of the screw sleeve 30, thereby completing the assembly of the form removal hammer device.

[0106] The following will Figures 15 - 20 be uniformly described with reference to the working principle of the form removal hammer device provided by the present utility model as shown.

[0107] It should be noted that Figures 15 - 17 exemplarily gives a schematic diagram of the working principle of the form removal hammer device provided by the present utility model for removing the wedging block. As Figure 15 and Figure 16 shown, after the wedging block 61 is assembled with the workpiece 60 to be wedged, its visible part generally sinks or is flush with the periphery of its assembly position, without a handle position, without a side striking surface, and without a bottom slot hole, and it cannot be disassembled by hand. Generally, non-professional disassembly is time-consuming and laborious.

[0108] The working principle of the form removal hammer device provided by the present utility model for removing the wedging block is as follows: Select a suitable screw rod unit 200 and assemble it onto the screw sleeve 30. Please refer to Figure 16 shown. Screw the third connecting portion 202 of the screw rod unit 200 into the corresponding first process thread hole 611 of the wedging block 61. Hold the holding portion 504 of the hammer body 50 with one hand and drive the hammer body 50 to quickly rush towards the conical valve plug portion 104 of the pull rod unit 100. Utilize the hammer body 50 with a certain mass to accelerate and slide from the end close to the screw sleeve 30 to the end close to the conical valve plug portion 104. The impact of the hammer body 50 with the generated momentum on the conical valve plug portion 104 causes the combined body of the pull rod unit 100, the screw sleeve 30, and the screw rod unit 200 to generate a pulling force, thereby realizing the pulling effect on the wedging block 61. As Figure 17 shown, the distance that the wedging block 61 slides out is to convert the momentum in the impact process of the hammer body 50 on the conical valve plug portion 104 one or more times into the pulling force of the pull rod unit 100 and drag the wedging block 61. After it is loosened, continue to drag the displaced wedging block 61 and the state position of the form removal hammer device.

[0109] It should be noted that Figures 18 - 20 exemplarily gives a schematic diagram of the working principle of the form removal hammer device provided by the present utility model for removing the guide post. As Figure 18 and Figure 19 shown, after the guide post 71 is assembled on the template surface 70, the cup head of the guide post 71 will sink 0.2 mm to 0.5 mm from the periphery of its assembly position, and it cannot be pulled out by hand. Generally, non-professional disassembly is very difficult.

[0110] The working principle of the demoulding pull hammer device provided by the present utility model for removing the guide pillar is as follows: Select a suitable single screw rod 200 and assemble it onto the screw sleeve 30. Please refer to Figure 19 As shown, screw the third connecting portion 202 of the single screw rod 200 into the corresponding second process thread hole 711 of the guide pillar 71. Hold the holding portion 504 of the hammer body 50 with one hand and drive the hammer body 50 to quickly rush towards the conical valve plug portion 104 of the pull rod single body 100. Utilize the hammer body 50 with a certain mass to slide from one end close to the screw sleeve 30 to the end close to the conical valve plug portion 104 at an accelerated speed. The impact of the hammer body 50 with momentum on the conical valve plug portion 104 causes the combined body of the pull rod single body 100, the screw sleeve 30, and the single screw rod 200 to generate a pulling force, thereby realizing the pulling effect on the guide pillar 71.

[0111] It should be noted that the working principle of the demoulding pull hammer device provided by the present utility model for removing the positioning pin is the same as the above-mentioned working principle for removing the guide pillar, and will not be elaborated here.

[0112] The demoulding pull hammer device provided by the present utility model is simple to operate, has high efficiency, is safe and reliable, and can greatly save the time cost generated by pulling and demoulding the die wedge block or various positioning pins and guide pillars.

[0113] Although the embodiments of the present utility model have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present utility model, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A demoulding hammer assembly, characterized in that: include: A tie rod kit (10) comprises at least one tie rod monomer (100); a first connecting portion (101) is provided at one axial end of each tie rod monomer (100); A screw rod kit (20) comprises a plurality of screw rod monomers (200); a second connecting portion (201) is provided at one axial end of each screw rod monomer (200); A third connecting portion (202) is provided at the other axial end of each screw rod monomer (200), and the third connecting portion (202) is suitable for being threadedly connected to a disassembled workpiece; and the diameter of the third connecting portion (202) of at least one of the screw rod monomers (200) is greater than the diameter of the third connecting portion (202) of another screw rod monomer (200); The thread sleeve (30) has one axial end suitable for being detachably connected to the first connecting portion (101), and the other end suitable for being detachably connected to the second connecting portion (201).

2. The demoulding hammer assembly according to claim 1, characterized in that: The tie rod kit (10) comprises a plurality of tie rod monomers (100), and the length of at least one of the tie rod monomers (100) is greater than the length of another tie rod monomer (100).

3. The demoulding hammer assembly according to claim 1, characterized in that: The thread sleeve (30) is axially opened to form a screw hole (301); one axial end of the screw hole (301) is suitable for being threadedly connected to the first connecting portion (101), and the other end is suitable for being threadedly connected to the second connecting portion (201).

4. The demoulding hammer assembly according to claim 3, characterized in that: A first limiting hole (302) is radially formed on the thread sleeve (30), a second limiting hole (102) corresponding to the first limiting hole (302) is radially formed on the first connecting portion (101), and the second limiting hole (102) is suitable for being coaxially arranged with the first limiting hole (302); The demoulding hammer assembly also includes a spring pin (40), which is suitable for passing through the first limiting hole (302) and the second limiting hole (102) to limit the position between the wire sleeve (30) and the pull rod monomer (100).

5. The demoulding hammer assembly according to claim 1, characterized in that: Each of the screw rod units (200) further comprises an axial shoulder portion (203), wherein the axial shoulder portion (203) is arranged at one end of the second connecting portion (201) axially close to the third connecting portion (202), and the axial shoulder portion (203) is suitable for abutting against an end face of one axial end of the thread sleeve (30).

6. The demoulding hammer assembly according to claim 5, characterized in that: An auxiliary disassembly hole (204) is radially opened on the shaft shoulder portion (203), and a pin is suitable for passing through the auxiliary disassembly hole (204) to increase the torque for disassembling and assembling the screw rod unit (200).

7. The demoulding hammer assembly according to any one of claims 1 to 6, characterized in that: A first knurled portion (303) is circumferentially arranged on the outer peripheral wall of the wire sleeve (30), and the first knurled portion (303) is suitable for anti-slip.

8. A demoulding hammer device, characterized in that: include: A hammer body (50), and a demolding hammer assembly as claimed in any one of claims 1 to 7; The hammer body (50) is provided with a through hole (501) along the axial direction, the pull rod unit (100) is suitable for passing through the through hole (501) along the axial direction, and the hammer body (50) is suitable for axially reciprocating relative to the pull rod unit (100).

9. The mold removal hammer device according to claim 8, characterized in that: A limiting portion (103) is provided at one end of the pull rod monomer (100) axially away from the first connecting portion (101), and the limiting portion (103) is suitable for abutting against an end surface of one axial end of the hammer body (50), and the limiting portion (103) is suitable for axially limiting the hammer body (50); The wire sleeve (30) abuts against one end of the hammer body (50) axially away from the limiting portion (103), and the wire sleeve (30) is suitable for axially limiting the hammer body (50) together with the limiting portion (103).

10. The mold removal hammer device according to claim 9, characterized in that: A conical valve port (502) is formed at one end of the hammer body (50) axially close to the limiting portion (103); a conical valve plug portion (104) is formed at one end of the limiting portion (103) axially close to the hammer body (50), and the conical valve plug portion (104) is suitable for abutting against the inner peripheral wall of the conical valve port (502).

11. The mold removal hammer device according to any one of claims 8 to 10, characterized in that: Both axial ends of the hammer body (50) are provided with hand guard shoulders (503) protruding in the radial direction, and the two hand guard shoulders (503) are circumferentially arranged along the outer peripheral wall of the hammer body (50).

12. The mold removal hammer device according to claim 11, characterized in that: A gripping portion (504) is formed between the two hand guard shoulders (503), and a second knurled portion (505) is circumferentially arranged on the outer peripheral wall of the gripping portion (504), and the second knurled portion (505) is suitable for anti-slip.

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