Core-pulling round-completing molding die

Abstract

The utility model discloses a core pulling whole circle forming die relates to machining die technical field, including lower die mechanism, material belt positioning guide mechanism and upper die mechanism, lower die mechanism contains, the upside of lower die base is installed with lower tie plate, the upside of lower tie plate is installed with lower die plate, the upside middle part of lower die plate is provided with guiding punching area, cutting appearance area no.

Description

Technical Field

[0001] This utility model relates to the field of machining mold technology, specifically a core-pulling and rounding forming mold. Background Technology

[0002] Round tubular metal parts are a common type of part. When machining round tubular metal parts, a high degree of roundness is generally required, that is, the diameter tolerance needs to be controlled within a certain range. However, the existing machining methods that can meet the roundness requirements are inefficient and difficult to produce continuously and efficiently. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide a core-pulling and rounding forming mold. By using the lower mold mechanism and the upper mold mechanism in the stamping equipment to continuously stamp and shape, a "core-pulling and rounding" process is formed, which can continuously and efficiently produce round tubular metal parts and effectively solve the problems in the background technology.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a core-pulling and rounding forming mold, comprising: The lower die mechanism includes a lower die base, a lower backing plate, and a lower die template. The lower backing plate is installed on the upper side of the lower die base, and the lower die template is installed on the upper side of the lower backing plate. The upper middle part of the lower die template is provided with the following sections from left to right: a guide punching area, a first cutting area, a first pressing area, a second cutting area, a second pressing area, a first bending area, a second bending area, a third bending area, a fourth bending area, a first shaping area, a second shaping area, and a cutting and ejection area. The material strip positioning and guiding mechanism includes a guide column, a pressure-bearing buffer component, a material strip annular guide groove, and a guide vertical hole. Two rows of guide vertical holes are opened horizontally at equal intervals on the lower template. A guide column is vertically slidably connected in each guide vertical hole. A pressure-bearing buffer component is connected to the bottom of each guide column, and a material strip annular guide groove is opened on the outer periphery of the top of each guide column. The upper mold mechanism is installed above the lower mold plate.

[0005] The lower die base serves as the base, with a lower pad placed between the lower die base and the lower template to facilitate stable installation of the lower template. The lower template and lower die base are connected by positioning pins and bolts. Guide pins are installed in vertical holes. The strip passes between two rows of guide pins, with its front and rear sides passing through annular guide grooves on the guide pins. The strip moves from left to right. A hydraulic cylinder in the stamping equipment moves the upper die mechanism downwards towards the lower template, pressing down on the guide pins. The pressure-bearing buffer assembly is compressed, and the strip adheres to... The upper die mechanism, in conjunction with the lower die plate, completes the processing of the corresponding positions on the strip by using the guide punching area, the first cutting area, the first pressing area, the second cutting area, the second pressing area, the first bending area, the second bending area, the third bending area, the fourth bending area, the first shaping area, the second shaping area, and the cutting and ejection area. Specifically, the guide punching area performs initial guide punching on the strip, the first cutting area performs the first cutting of the strip, the first pressing area performs the first pressing, and the cutting area... The strip undergoes a second cutting process in the second pressing zone, followed by a second pressing process in the third pressing zone. At this point, a raw material plate is formed on the strip. The two sides of the raw material plate are still connected to the main body of the strip. The bending zones 1, 2, 3, and 4 continuously bend the raw material plate cut from the strip, making the front and rear ends of the raw material plate bend downwards with increasing amplitude. After two shaping processes in the first and second shaping zones, a cylindrical metal part is formed. The cutting and exiting zone causes the formed cylindrical metal part to detach from the strip, meaning that the connection between the cylindrical metal part and the main body of the strip is broken by stamping. After one stamping, the hydraulic cylinder in the stamping equipment drives the upper die mechanism to move upward, and the pressure buffer component springs back to reset, driving the guide column and the upper part of the strip to move upward. The strip leaves the corresponding processing area to avoid the processing area affecting the rightward movement of the strip. Then the strip moves one station to the right, allowing each raw material plate on the strip to be processed sequentially in each processing area, forming a continuous stamping process with high production efficiency.

[0006] Furthermore, the pressure-bearing buffer assembly includes a second mounting base, a second sliding column, a second compression spring, and a second sliding sleeve. A mounting vertical hole is provided on the upper side of the lower mold base corresponding to the position of the guide vertical hole. The second mounting base is provided at the bottom of the mounting vertical hole. The bottom end of the second sliding column is fixedly connected to the upper middle part of the second mounting base. The bottom of the guide column is provided with a second sliding sleeve. The second sliding column and the second sliding sleeve are vertically slidably connected, and the top end of the second sliding column extends into the column hole at the bottom of the guide column. The column section of the second sliding column located below the second sliding sleeve is fitted with a second compression spring. A plate hole corresponding to the mounting vertical hole is provided on the lower pad. When the upper die mechanism moves down, it begins to contact the top of the guide column. After the guide column and the second sliding sleeve are pressed, they slide down relative to the second sliding column. The top of the second sliding column gradually enters the column hole at the bottom of the guide column, and the second compression spring is compressed. After the stamping is completed, the upper die mechanism moves up, the guide column is no longer pressed, the second compression spring returns to its original position and extends, pushing the guide column and the strip upward, gradually moving away from the processing area on the upper side of the lower die plate. This avoids the processing area on the upper side of the lower die plate affecting the rightward movement of the strip, which requires external driving force.

[0007] Furthermore, the upper mold mechanism includes an upper mold base, an upper pad, an upper clamping plate, a stop plate, and an anti-detachment plate. The upper pad is installed on the lower side of the upper mold base, and the upper clamping plate is installed on the lower side of the upper pad. The bottom of the upper mold base is connected to the upper side of the stop plate through a stripping buffer assembly. The stop plate is located between the upper clamping plate and the lower mold plate, and the anti-detachment plate is installed on the lower side of the stop plate.

[0008] Furthermore, the stripping buffer assembly includes a telescopic rod and a stripping spring. The top end of the telescopic rod is fixedly connected to the mold groove of the upper mold base. The bottom end of the telescopic rod passes through the round holes on the upper pad and the upper clamping plate in sequence and is connected to the upper side of the stop plate. A stripping spring is sleeved on the telescopic rod. The upper pad is placed between the upper die base and the upper clamping plate. The upper die base and the upper clamping plate are connected by positioning pins and bolts. The stop plate is used to install the anti-detachment plate. When the upper die base, the upper pad, and the upper clamping plate move downward under the action of the hydraulic cylinder, the anti-detachment plate first contacts the upper side of the lower template. The stop plate and the anti-detachment plate stop moving downward. The upper die base, the upper pad, and the upper clamping plate continue to move downward. At this time, the telescopic rod shortens and the stripping spring is compressed until the pressure blocks in each area at the bottom of the upper clamping plate cooperate with each processing area on the lower template to complete the stamping. Then, the hydraulic cylinder drives the upper die base, the upper pad, and the upper clamping plate to move upward. At this time, the middle part of the stripping spring returns to its original position and extends until the telescopic rod completes its extension and drives the stop plate and the anti-detachment plate to move upward. The anti-detachment plate facilitates the separation of the pressure blocks at the bottom of the upper clamping plate from the material strip, solving the problem that the pressure blocks at the bottom of the upper clamping plate are difficult to separate from the material strip due to friction.

[0009] Furthermore, the lower mold mechanism also includes lower pads, and the lower mold base has lower pads arranged at equal distances on the front and rear sides of the bottom, which are used to support the lower mold base.

[0010] Furthermore, it also includes a waste guide channel. A waste guide channel with a left-high and right-low orientation is provided at the lower left end of the lower mold base. The front and rear sides of the left end of the waste guide channel are connected to the corresponding lower pads. During the initial cutting process, waste will fall and fall onto the waste guide channel, then slide down to the lower right. The waste guide channel can collect the waste.

[0011] Furthermore, it also includes a lower mold forming assembly, which comprises a disassembly seat, a forming mold pillar, and a pad. The disassembly seat is detachably mounted on the upper side of the forming area one. The left end of the forming mold pillar is fixedly connected within the arc groove on the upper side of the disassembly seat. The right end of the forming mold pillar extends to the middle of the forming area two. A pad is provided on the lower side of the middle part of the forming mold pillar. The disassembly seat is used to install the forming mold pillar, which spans the forming area one and the forming area two. The forming mold pillar serves as the "core" of the cylindrical metal part, facilitating a high degree of roundness in the cylindrical metal part.

[0012] Compared with existing technologies, the beneficial effects of this core-pulling and round forming mold are: 1. In this core-pulling and round forming mold, the strip passes between two rows of guide posts, and the front and rear sides of the strip pass through the annular guide groove on the guide posts. The strip moves from left to right. The guide punching area performs initial guide punching on the strip. The cutting area performs the first cutting of the strip. The surface pressing area performs the first surface pressing. The cutting area performs the second cutting of the strip. The surface pressing area performs the second surface pressing. At this time, a raw material plate is formed on the strip. There are still connecting parts on both sides of the raw material plate to the strip body. The bending area one, bending area two, bending area three, and bending area four continuously bend the raw material plate cut from the strip, making the front and rear ends of the raw material plate bend downwards with increasing amplitude. After two shaping processes in the shaping area one and shaping area two, a round tubular metal part is formed. The cutting and exiting area separates the formed round tubular metal part from the strip, that is, the connection between the round tubular metal part and the strip body is punched off.

[0013] 2. In this core-pulling and rounding forming mold, after one punch, the hydraulic cylinder in the stamping equipment drives the upper mold mechanism to move upward, the pressure buffer component rebounds and resets, and drives the guide column and the material strip to move upward. The material strip leaves the corresponding processing area to avoid the processing area affecting the rightward movement of the material strip. Then the material strip moves one station to the right, allowing each raw material plate on the material strip to be processed sequentially in each processing area, forming a continuous stamping process with high production efficiency.

[0014] 3. This core-pulling and rounding forming mold utilizes the lower die mechanism and upper die mechanism in the stamping equipment to continuously stamp and shape, forming the "core-pulling and rounding" process, which can continuously and efficiently produce round tubular metal parts. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a top view of the lower template structure of this utility model; Figure 3 This is a schematic diagram of the misfeed detection mechanism in this utility model; Figure 4 This is a schematic diagram of the material belt positioning and guiding mechanism and the material belt structure in this utility model; Figure 5 This is a schematic diagram of the structure of the lower mold shaping component in this utility model; In the diagram: 1. Waste material guide channel; 2. Lower mold mechanism; 21. Lower mold base; 22. Lower pad; 23. Lower template; 231. Half template; 232. Positioning connection groove; 233. Positioning connection block; 24. Lower pad; 3. Upper mold mechanism; 31. Upper mold base; 32. Upper pad; 33. Upper clamping plate; 34. Stop plate; 35. Anti-detachment plate; 36. Telescopic rod; 37. Stripping spring; 4. Misfeed detection mechanism; 41. Mounting seat one; 42. Sliding column one; 43. Compression spring one; 44. Sliding sleeve one; 45. Misfeed detection pin; 5. Strip positioning guide mechanism; 51. Mounting seat two; 52. Sliding column two; 53. Compression spring. Spring 2, 54 Sliding sleeve 2, 55 Guide post, 56 Material strip annular guide groove, 57 Guide vertical hole, 6 Lower die forming assembly, 61 Disassembly seat, 62 Fixing ear, 63 Disassembly screw, 64 Forming die post, 65 Pad, 7 Material strip, 2301 Guide punching area, 2302 Cutting shape area 1, 2303 Surface pressing area 1, 2304 Cutting shape area 2, 2305 Surface pressing area 2, 2306 Bending area 1, 2307 Bending area 2, 2308 Bending area 3, 2309 Bending area 4, 2310 Forming area 1, 2311 Forming area 2, 2312 Cutting and exiting area. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Example 1, please refer to Figures 1 to 5 This utility model provides a technical solution: a core-pulling and rounding forming mold, including a lower mold mechanism 2, a material strip positioning and guiding mechanism 5, and an upper mold mechanism 3.

[0018] The lower die mechanism 2 includes a lower die base 21, a lower backing plate 22, and a lower template 23. The lower backing plate 22 is installed on the upper side of the lower die base 21, and the lower template 23 is installed on the upper side of the lower backing plate 22. The upper middle part of the lower template 23 is provided with the following from left to right: a guide punching area 2301, a first cutting area 2302, a first pressing area 2303, a second cutting area 2304, a second pressing area 2305, a first bending area 2306, a second bending area 2307, a third bending area 2308, a fourth bending area 2309, a first shaping area 2310, a second shaping area 2311, and a cutting and output area 2312.

[0019] The material strip positioning and guiding mechanism 5 includes a guide post 55, a pressure-bearing buffer assembly, a material strip annular guide groove 56, and a guide vertical hole 57. Two rows of guide vertical holes 57 are opened horizontally at equal intervals on the lower template 23. A guide post 55 is vertically slidably connected in each guide vertical hole 57. A pressure-bearing buffer assembly is connected to the bottom of each guide post 55, and a material strip annular guide groove 56 is opened on the outer periphery of the top of each guide post 55.

[0020] The pressure-bearing buffer assembly includes a mounting base 21, a sliding column 22, a compression spring 23, and a sliding sleeve 24. A mounting vertical hole is provided on the upper side of the lower mold base 21 at the position corresponding to the guide vertical hole 57. The mounting base 21 is provided at the bottom of the mounting vertical hole. The upper middle part of the mounting base 21 is fixedly connected to the bottom end of the sliding column 22. The bottom of the guide column 55 is provided with the sliding sleeve 24. The sliding column 22 and the sliding sleeve 24 are vertically slidably connected, and the top end of the sliding column 22 extends into the column hole at the bottom of the guide column 55. The column section of the sliding column 22 located below the sliding sleeve 24 is fitted with the compression spring 23. The upper and lower ends of the compression spring 23 are respectively connected to the sliding sleeve 24 and the mounting base 21. The lower pad 22 has a plate hole corresponding to the mounting vertical hole. When the upper die mechanism 3 moves down, it begins to contact the top of the guide post 55. After the guide post 55 and the second sliding sleeve 54 are pressed, they slide down relative to the second sliding post 52. The top of the second sliding post 52 gradually enters the post hole at the bottom of the guide post 55, and the second compression spring 53 is compressed. After the stamping is completed, the upper die mechanism 3 moves up, the guide post 55 is no longer pressed, the second compression spring 53 returns to its original position and extends, pushing the guide post 55 and the strip 7 to move up, gradually moving away from the processing area on the upper side of the lower die 23, so as to avoid the processing area on the upper side of the lower die 23 affecting the rightward movement of the strip 7. The rightward movement of the strip 7 requires external driving force.

[0021] The upper mold mechanism 3 is installed above the lower mold plate 23.

[0022] The upper mold mechanism 3 includes an upper mold base 31, an upper pad 32, an upper clamping plate 33, a stop plate 34, and a release plate 35. The upper pad 32 is installed on the lower side of the upper mold base 31, and the upper clamping plate 33 is installed on the lower side of the upper pad 32. The bottom of the upper mold base 31 is connected to the upper side of the stop plate 34 through a stripping buffer assembly. The stop plate 34 is located between the upper clamping plate 33 and the lower mold plate 23, and the release plate 35 is installed on the lower side of the stop plate 34.

[0023] The stripping buffer assembly includes a telescopic rod 36 and a stripping spring 37. The top end of the telescopic rod 36 is fixedly connected to the mold groove of the upper mold base 31. The bottom end of the telescopic rod 36 passes through the round holes on the upper pad 32 and the upper clamping plate 33 and connects to the upper side of the stop plate 34. The stripping spring 37 is sleeved on the telescopic rod 36. The upper pad 32 is placed between the upper mold base 31 and the upper clamping plate 33. The upper mold base 31 and the upper clamping plate 33 are connected by positioning pins and bolts. The stop plate 34 is used to install the anti-stripping plate 35. When the upper mold base 31, the upper pad 32, and the upper clamping plate 33 move downward under the action of the hydraulic cylinder, the anti-stripping plate 35 first contacts the upper side of the lower mold plate 23. The stop plate 34 and the anti-stripping plate 35 stop moving downward. The upper mold base 31, the upper pad 32, and the upper clamping plate 33 continue to move downward. At this time, the telescopic rod 36 shortens and the stripping spring 37 is compressed. The process continues until the pressure blocks in each area at the bottom of the upper clamping plate 33 cooperate with each processing area on the lower template 23 to complete the stamping. Then, the hydraulic cylinder drives the upper mold base 31, the upper pad 32, and the upper clamping plate 33 to move upward. At this time, the middle part of the stripping spring 37 returns to its original position and extends until the telescopic rod 36 completes its extension, which drives the stop plate 34 and the anti-slip plate 35 to move upward. The anti-slip plate 35 facilitates the separation of the pressure blocks at the bottom of the upper clamping plate 33 from the material strip 7, solving the problem that the pressure blocks at the bottom of the upper clamping plate 33 are difficult to separate from the material strip 7 due to friction.

[0024] Specifically, when bending the material strip 7 onto the raw material plate in bending zone 1 (2306), bending zone 2 (2307), bending zone 3 (2308), and bending zone 4 (2309), the upper clamping plate 33 is provided with a part that matches the shape, and the upper and lower parts are pressed together to perform bending.

[0025] It also includes a lower mold forming component 6, which includes a disassembly seat 61, a forming mold pillar 64 and a pad 65. The disassembly seat 61 is detachably installed on the upper side of the forming area 2310. The left end of the forming mold pillar 64 is fixedly connected in the arc groove on the upper side of the disassembly seat 61. The right end of the forming mold pillar 64 extends to the middle of the forming area 2311. A pad 65 is provided on the lower side of the middle part of the forming mold pillar 64.

[0026] The lower mold shaping component 6 also includes a fixing ear 62 and a disassembly screw 63. Two fixing ears 62 are respectively provided on the front and rear sides of the disassembly seat 61. The fixing ears 62 are fixed to the lower mold plate 23 by the disassembly screw 63.

[0027] The disassembly base 61 is used to install the forming mold column 64, which spans the forming area 1 2310 and the forming area 2 2311. As the "core" of the round tubular metal part, the forming mold column 64 helps the round tubular metal part to maintain a high degree of roundness.

[0028] The lower die base 21 serves as the base, and the lower pad 22 is placed between the lower die base 21 and the lower template 23 to facilitate the stable installation of the lower template 23. The lower template 23 and the lower die base 21 are connected by positioning pins and bolts. The guide vertical hole 57 is used to install the guide pins 55. The material strip 7 passes between the two rows of guide pins 55, and the front and rear sides of the material strip 7 pass through the material strip annular guide grooves 56 on the guide pins 55. The material strip 7 moves from left to right. The hydraulic cylinder in the stamping equipment drives the upper die mechanism 3 to move down closer to the lower template 23, which can press down the guide pins 55. The pressure buffer component is compressed, and the material strip 7 is close to the lower template 23. 3. The upper die mechanism 3, in conjunction with the lower die plate 23, completes the processing of the corresponding positions on the strip 7 by the following areas: guide punching area 2301, cutting area 1 2302, surface pressing area 1 2303, cutting area 2 2304, surface pressing area 2 2305, bending area 1 2306, bending area 2 2307, bending area 3 2308, bending area 4 2309, shaping area 1 2310, shaping area 2 2311, and cutting and output area 2312. Specifically, the guide punching area 2301 performs initial guide punching on the strip 7, and the cutting area 1 2302 performs the first cutting of the strip 7. In the first pressing zone 2303, the material strip 7 undergoes its first pressing process. In the second cutting zone 2304, the material strip 7 undergoes its second cutting process. In the third pressing zone 2305, the material strip 7 undergoes its second pressing process. At this point, a raw material plate is formed on the material strip 7. The two sides of the raw material plate still have connecting parts to the main body of the material strip 7. The bending zones 2306, 2307, 2308, and 2309 continuously bend the raw material plate cut from the material strip 7, causing the front and rear ends of the raw material plate to bend downwards with increasing amplitude. After two shaping processes in the first shaping zone 2310 and the second shaping zone 2311... After forming, a cylindrical metal part is created. The cut-out area 2312 causes the formed cylindrical metal part to detach from the strip 7. That is, the connection between the cylindrical metal part and the main body of the strip 7 is broken by stamping. After one stamping, the hydraulic cylinder in the stamping equipment drives the upper die mechanism 3 to move upward. The pressure buffer component rebounds and resets, driving the guide column 55 and the upper part of the strip 7 to move upward. The strip 7 leaves the corresponding processing area to avoid the processing area affecting the rightward movement of the strip 7. Then the strip 7 moves one station to the right, allowing each raw material plate on the strip 7 to be processed sequentially in each processing area, forming a continuous stamping process with high production efficiency.

[0029] Example 2, please refer to Figures 1 to 5 This utility model provides a technical solution: a core-pulling and rounding forming mold. This embodiment is largely the same in structure as Embodiment 1, except that: The lower mold mechanism 2 also includes lower support feet 24. Lower support feet 24 are provided at equal distances on the front and rear sides of the bottom of the lower mold base 21. The lower support feet 24 are used to support the lower mold base 21.

[0030] A waste guide trough 1 is also provided. The waste guide trough 1, which is higher on the left and lower on the right, is provided at the lower left end of the lower mold base 21. The front and rear sides of the left end of the waste guide trough 1 are connected to the corresponding lower pads 24 respectively. During the initial cutting process, waste will fall. This waste will fall onto the waste guide trough 1 and then slide down to the lower right. The waste guide trough 1 can collect the waste.

[0031] Example 3, please refer to Figures 1 to 5 This utility model provides a technical solution: a core-pulling and rounding forming mold. This embodiment is largely the same in structure as Embodiment 2, except that: A misfeed detection mechanism 4 is also provided. The misfeed detection mechanism 4 includes a mounting base 41, a sliding column 42, a compression spring 43, a sliding sleeve 44, and a misfeed detection pin 45. The top end of the sliding column 42 is fixedly connected to the seat hole of the upper mold base 31 through the mounting base 41. The sliding column 42 and the sliding sleeve 44 are vertically slidably connected. The sliding sleeve 44 is fixed to the top end of the misfeed detection pin 45. The bottom end of the sliding column 42 extends into the blind hole at the top of the misfeed detection pin 45. The top of the sliding column 42 is fitted with a compression spring 43. The upper and lower ends of the compression spring 43 are respectively connected to the mounting base 41 and the sliding sleeve 44. The bottom end of the misfeed detection pin 45 is sequentially connected to the mounting base 41 and the sliding sleeve 44. Through the holes in the stop plate 34, the anti-detachment plate 35, the lower pad plate 22, and the lower template 23, the front and rear sides of the strip 7 are respectively provided with station positioning holes. Each time the upper die mechanism 3 moves down to press, the misfeed detection pin 45 will be inserted into the corresponding station positioning hole on the strip 7. If the misfeed detection pin 45 is not inserted into the station positioning hole when the upper die mechanism 3 is pressed down, but is pressed against other positions of the strip 7, the compression spring 43 will be compressed by the sliding sleeve 44 and the misfeed detection pin 45. The pressure sensor or other sensors in appropriate positions can detect that the strip 7 is not being conveyed from left to right, thereby triggering a system alarm and allowing the operator to deal with it in time.

[0032] In other embodiments, please refer to Figure 2 The lower template 23 includes two half templates 231, positioning connecting grooves 232, and positioning connecting blocks 233. The two half templates 231 are respectively provided with T-shaped positioning connecting grooves 232 at their close ends. The positioning connecting blocks 233 are I-shaped mechanisms. The two ends of the positioning connecting blocks 233 respectively engage with the two T-shaped positioning connecting grooves 232 on the two half templates 231. The two half templates 231 are spliced ​​together to form a complete lower template 23 by means of the positioning connecting blocks 233 and the positioning connecting grooves 232. The two lower templates 23 are relatively stable and suitable for the arrangement of longer lower templates 23.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A core-pulling and rounding forming mold, characterized in that, include: The lower mold mechanism (2) includes a lower mold base (21), a lower pad plate (22) and a lower template (23). The lower mold base (21) is equipped with a lower pad plate (22) on its upper side, and the lower template (23) is equipped with a lower template (23) on its upper side. The upper middle part of the lower template (23) is provided with a guide punching area (2301), a cutting shape area 1 (2302), a surface pressing area 1 (2303), a cutting shape area 2 (2304), a surface pressing area 2 (2305), a bending area 1 (2306), a bending area 2 (2307), a bending area 3 (2308), a bending area 4 (2309), a shaping area 1 (2310), a shaping area 2 (2311), and a cutting and output area (2312) from left to right. The material strip positioning and guiding mechanism (5) includes a guide post (55), a pressure-bearing buffer assembly, a material strip annular guide groove (56) and a guide vertical hole (57). Two rows of guide vertical holes (57) are opened horizontally at equal intervals on the lower template (23). A guide post (55) is vertically slidably connected in each guide vertical hole (57). A pressure-bearing buffer assembly is connected to the bottom of each guide post (55), and a material strip annular guide groove (56) is opened on the outer periphery of the top of each guide post (55). The upper mold mechanism (3) is installed above the lower mold plate (23).

2. The core-pulling and rounding forming mold according to claim 1, characterized in that: The pressure-bearing buffer assembly includes a second mounting base (51), a second sliding column (52), a second compression spring (53), and a second sliding sleeve (54). The upper side of the lower mold base (21) is provided with a mounting vertical hole corresponding to the guide vertical hole (57). The second mounting base (51) is provided at the bottom of the mounting vertical hole. The upper middle part of the second mounting base (51) is fixedly connected to the bottom end of the second sliding column (52). The bottom of the guide column (55) is provided with a second sliding sleeve (54). The second sliding column (52) and the second sliding sleeve (54) are vertically slidably connected. The top end of the second sliding column (52) extends into the column hole at the bottom of the guide column (55). The column section of the second sliding column (52) located below the second sliding sleeve (54) is sleeved with a second compression spring (53).

3. The core-pulling and rounding forming mold according to claim 1, characterized in that: The upper mold mechanism (3) includes an upper mold base (31), an upper pad (32), an upper clamping plate (33), a stop plate (34), and a release plate (35). The upper pad (32) is installed on the lower side of the upper mold base (31), and the upper clamping plate (33) is installed on the lower side of the upper pad (32). The bottom of the upper mold base (31) is connected to the upper side of the stop plate (34) through a material stripping buffer assembly. The stop plate (34) is located between the upper clamping plate (33) and the lower mold plate (23). The release plate (35) is installed on the lower side of the stop plate (34).

4. The core-pulling and rounding forming mold according to claim 3, characterized in that: The stripping buffer assembly includes a telescopic rod (36) and a stripping spring (37). The top end of the telescopic rod (36) is fixedly connected in the mold groove of the upper mold base (31). The bottom end of the telescopic rod (36) passes through the round holes on the upper pad (32) and the upper clamping plate (33) in sequence and is connected to the upper side of the stop plate (34). The stripping spring (37) is sleeved on the telescopic rod (36).

5. The core-pulling and rounding forming mold according to claim 1, characterized in that: The lower mold mechanism (2) also includes a lower pad (24), and the lower mold base (21) is provided with lower pads (24) at equal distances on the front and rear sides of the bottom.

6. The core-pulling and rounding forming mold according to claim 5, characterized in that: It also includes a waste guide groove (1). A waste guide groove (1) with a left-high and right-low orientation is provided below the left end of the lower mold base (21). The front and rear sides of the left end of the waste guide groove (1) are respectively connected to the corresponding lower pads (24).

7. The core-pulling and rounding forming mold according to claim 1, characterized in that: It also includes a lower mold shaping component (6), which includes a disassembly seat (61), a shaping mold column (64) and a pad (65). The disassembly seat (61) is detachably installed on the upper side of the shaping area one (2310). The left end of the shaping mold column (64) is fixedly connected in the arc groove on the upper side of the disassembly seat (61). The right end of the shaping mold column (64) extends to the middle of the shaping area two (2311). A pad (65) is provided on the lower side of the middle of the shaping mold column (64).

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