Novel stopper stamping die

Abstract

The invention discloses a novel limiting stopper stamping die, and relates to the technical field of limiting stopper dies. The novel stopper stamping die comprises an upper die set and a lower die set. The upper die set comprises an upper die base, an upper padding plate, an upper clamping plate, a stopping plate and an upper stripping plate which are arranged from top to bottom, the upper die base, the upper padding plate and the upper clamping plate are fixedly connected in sequence, the upper stripping plate is fixedly connected with the stopping plate, and a discharging mechanism is arranged between the upper stripping plate and the upper die base; the lower die set comprises a lower die plate, a lower cushion plate and a lower die base which are sequentially arranged from top to bottom, and the lower die base, the lower cushion plate and the lower die plate are sequentially and fixedly connected. A first punch, a second punch, a third punch, a fourth punch and a fifth punch are sequentially arranged at the bottom of the upper stripper plate from left to right, the first punch is used for punching a product material, the second punch is used for punching the shape of the product material, the third punch is used for punching a groove in the product material, the fourth punch is used for bending the product material, and the fifth punch is used for punching the shape of the product material. And the fifth punch separates the product from the material.

Description

Technical Field

[0001] The invention relates to the technical field of limiter moulds, and in particular to a novel limiter stamping mould. Background Art

[0002] The limiter is usually used to limit the stroke of the valve plate inside the compressor to prevent the valve plate from excessive movement under the impact force of the exhaust gas from the exhaust hole, thereby avoiding the valve plate from hitting the supporting surface or the limiter and reducing the possibility of failure and damage.

[0003] The structure of the limiter is a C-shaped structure, including a limiting part of a 1 / 2 arc and a fixing part extending along the tangent direction at both ends of the arc. When processing the limiter, it is necessary to ensure the size of the open end of the limiter's shape. However, when the existing mold is used to process the limiter, the size of the open end is easily changed, resulting in product quality that cannot meet the use requirements. Summary of the invention

[0004] To this end, an embodiment of the present invention provides a new type of limiter stamping die to solve the problems existing in the above-mentioned technology.

[0005] In order to achieve the above purpose, the embodiment of the present invention provides the following technical solutions:

[0006] A novel stopper stamping die comprises an upper die set and a lower die set;

[0007] The upper die assembly includes an upper die seat, an upper pad, an upper clamping plate, a stop plate and an upper stripping plate arranged from top to bottom, the upper die seat, the upper pad and the upper clamping plate are fixedly connected in sequence, the upper stripping plate is fixedly connected to the stop plate, and a discharge mechanism is arranged between the upper stripping plate and the upper die seat;

[0008] The lower die assembly comprises a lower die plate, a lower pad and a lower die base arranged in sequence from top to bottom, and the lower die base, the lower pad and the lower die plate are fixedly connected in sequence;

[0009] The bottom of the upper stripping plate is provided with a first punch, a second punch, a third punch, a fourth punch and a fifth punch from left to right in sequence, wherein the first punch punches holes in the product material, the second punch punches the shape of the product material, the third punch punches grooves in the product material, the fourth punch bends the product material, and the fifth punch separates the product from the material.

[0010] Optionally, the unloading structure includes a limiting rod, a first limiting hole is formed through the top of the upper die seat from top to bottom, a first spring is arranged in the first limiting hole, the top end of the first spring is fixedly connected to the first limiting hole, the bottom end of the first spring is fixedly connected to the limiting rod, the limiting rod sequentially passes through the upper pad, the upper clamping plate, the stop plate and the stop plate and is fixedly connected to the upper stripping plate, the upper pad and the upper clamping plate are both slidably connected to the limiting rod;

[0011] In the initial state of the first spring, a gap is provided between the stop plate and the upper clamping plate.

[0012] Optionally, the first punch includes two guide hole punches and four product punches, the two guide hole punches are arranged at positions on the upper template corresponding to the inner side of the edge of the material belt, and the four product punches are divided into two groups, and the two groups of product punches correspond to the hole positions at both ends of the C-shaped material products on the material belt;

[0013] The lower template is provided with a groove corresponding to the first punch.

[0014] Optionally, two second punches are provided, and the two second punches are provided at positions on the upper template corresponding to the material products on the upper and lower sides of the material belt;

[0015] The second punch includes a first punching member with a 1 / 4 arc shape corresponding to the outer side of the material product, and the first punching member is symmetrically arranged with another 1 / 4 arc structure along the traveling direction of the material belt, and also includes a second punching member with a 1 / 2 arc shape corresponding to the inner side of the material product, and the two second punches are centrally symmetrically arranged, respectively corresponding to the positions of two rows of materials on the material belt;

[0016] The lower template is provided with a groove corresponding to the second punch.

[0017] Optionally, two third punches are provided, and the two third punches are provided at positions on the upper template corresponding to the material products on the upper and lower sides of the material belt, and the two third punches are centrally symmetrically arranged;

[0018] The third punch includes a first notch member in the shape of a half circular arc and a second notch member in the shape of a half circular arc, the first notch member and the second notch member are arranged concentrically, and a gap is arranged between the first notch member and the second notch member, the outer arc radius of the first notch member is larger than the outer arc radius of the material product, the inner arc radius of the second notch member is smaller than the inner arc radius of the material product, and the inner arc radius of the first notch member is larger than the outer arc radius of the second notch member, so as to form a gap at a corresponding position of the material product;

[0019] The lower template is provided with a groove corresponding to the third punch.

[0020] Optionally, two fourth punches are provided, and the two fourth punches are provided at positions on the upper template corresponding to the material products on the upper and lower sides of the material belt, and the two fourth punches are centrally symmetrically arranged;

[0021] The cross section of the fourth punch is a rectangular structure, and its cross section is larger than the outer arc diameter of the material product. The bottom of the fourth punch is an arc structure, which is used to bend the material product;

[0022] The lower template is provided with a groove corresponding to the fourth punch.

[0023] Optionally, the fifth punch is provided with one, and the fifth punch includes two punching parts, each of the two punching parts includes a pressure plate adapted to the inner arc of the material product, and a pressure rod extending from the pressure plate toward the opening direction of the material product, the two punching parts are fixedly connected, and the two punching parts are centrally symmetrically arranged.

[0024] Optionally, a push rod is also provided in the upper mold group, and the push rod passes through the upper release plate, the stop plate, the upper clamping plate and the upper pad in sequence. A second limiting hole is opened in the upper mold base, and the push rod passes through the second limiting hole. A second spring is provided in the second limiting hole, and one end of the second spring is fixedly connected to the push rod, and the other end of the second spring is fixed in the second limiting hole.

[0025] Optionally, a pin is further provided in the upper mold assembly, and the pin passes through the upper release plate, the stop plate, the upper clamping plate and the upper pad in sequence. A third limiting hole is opened in the upper mold base, and the pin passes through the third limiting hole. A third spring is provided in the third limiting hole, and one end of the third spring is fixedly connected to the pin, and the other end of the third spring is fixed to the third limiting hole.

[0026] Optionally, multiple groups of sinking and floating pins are arranged in the lower mold group, each group of sinking and floating pins includes two sinking and floating pin structures, the two sinking and floating pin structures are symmetrically arranged on both sides of the material belt, the sinking and floating pins pass through the lower mold plate and the lower pad from top to bottom in sequence, a fourth limiting hole is opened in the lower mold base, a fourth spring is arranged in the fourth limiting hole, the bottom end of the sinking and floating pin is fixedly connected to one end of the fourth spring, and the other end of the fourth spring is fixedly connected to the fourth limiting hole.

[0027] The present invention has at least the following beneficial effects:

[0028] The present invention divides the shape of the product into multiple parts by means of the first punch, the second punch, the third punch, the fourth punch and the fifth punch arranged on the upper die set, first punching a circular hole, then punching out the inner and outer shapes, connecting the material strips with C-shaped openings at both ends, then completing the bending, and finally cutting, so as to ensure the size of the opening end and thus meet the use requirements of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly explain the prior art and the present invention, the following briefly introduces the drawings required for describing the prior art and the embodiments of the present invention. Obviously, the drawings described below are only exemplary, and for those of ordinary skill in the art, other drawings can be derived from the provided drawings without creative work.

[0030] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so that people familiar with this technology can understand and read them. They are not used to limit the conditions under which the present invention can be implemented. Any structural modification, change in proportion or adjustment of size should still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0031] Figure 1 A schematic diagram of the internal structure of an embodiment of the present invention;

[0032] Figure 2 A schematic diagram of the structure of a mold processing surface according to an embodiment of the present invention;

[0033] Figure 3 This is a progressive die layout diagram of an embodiment of the present invention.

[0034] Description of reference numerals:

[0035] 1. Upper die set; 101. Upper die seat; 102. Upper pad; 103. Upper clamp; 104. Stop plate; 105. Upper stripping plate; 2. Lower die set; 201. Lower die plate; 202. Lower pad; 203. Lower die seat; 3. Unloading mechanism; 301. Limit rod; 302. First limit hole; 303. First spring; 4. First punch; 401. Guide hole punch; 402. Product punch; 5. Second punch ; 501, first punching member; 502, second punching member; 6, third punch; 601, first notching member; 602, second notching member; 7, fourth punch; 8, fifth punch; 801, pressure plate; 802, pressure rod; 9, push rod; 10, second limiting hole; 11, second spring; 12, insertion pin; 13, third limiting hole; 14, third spring; 15, sinking and floating pin; 16, fourth limiting hole; 17, fourth spring. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0037] In the description of the present invention, unless otherwise specified, "plurality" means two or more. The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the present invention and the above-mentioned drawings are intended to distinguish the objects referred to. For schemes with a sequential flow, this terminology does not have to be understood as describing a specific order or sequence. For schemes with device structures, this terminology does not distinguish between importance, positional relationships, etc.

[0038] In addition, the terms "comprises", "has" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or apparatus that includes a series of steps or units is not necessarily limited to those steps or units that have been explicitly listed, but may also include other steps or units that are not explicitly listed but are inherent to these processes, methods, products or apparatuses, or steps or units that are added based on further optimization schemes conceived by the present invention.

[0039] like Figure 1-Figure 3 As shown, a new type of limiter stamping die disclosed in the present invention comprises an upper die set 1 and a lower die set 2;

[0040] The upper die assembly 1 includes an upper die base 101, an upper pad 102, an upper clamping plate 103, a stop plate 104 and an upper stripping plate 105 arranged from top to bottom. The upper die base 101, the upper pad 102 and the upper clamping plate 103 are fixedly connected in sequence, the upper stripping plate 105 is fixedly connected to the stop plate 104, and a discharge mechanism 3 is arranged between the upper stripping plate 105 and the upper die base 101;

[0041] The lower die set 2 includes a lower die plate 201, a lower pad 202 and a lower die base 203 arranged in sequence from top to bottom, and the lower die base 203, the lower pad 202 and the lower die plate 201 are fixedly connected in sequence;

[0042] The bottom of the upper stripping plate 105 is provided with a first punch 4, a second punch 5, a third punch 6, a fourth punch 7 and a fifth punch 8 from left to right, wherein the first punch 4 punches holes in the product material, the second punch 5 punches the shape of the product material, the third punch 6 punches grooves in the product material, the fourth punch 7 bends the product material, and the fifth punch 8 separates the product from the material.

[0043] The upper stripping plate 105 at the bottom of the upper die set 1 is provided with a first punch 4, a second punch 5, a third punch 6, a fourth punch 7 and a fifth punch 8. Figure 2 As shown, the first punch 4, the second punch 5, the third punch 6, the fourth punch 7 and the fifth punch 8 are arranged from left to right in sequence, and the conveying direction of the material belt is also from left to right. The first punch 4, the second punch 5, the third punch 6, the fourth punch 7 and the fifth punch 8 are respectively used for punching, punching the shape, punching the groove, bending and blanking (cutting). Due to the particularity of the product shape, the C-shaped opening, the product is easy to cause the center distance of the opening end position to be deformed out of tolerance during punching. When designing the punching step, this mold divides the product shape into three parts, first punching the circular hole, then punching the inside and outside at the same time, connecting the material belt at both ends of the C-shaped opening, bending, and finally cutting to ensure the size of the opening end position.

[0044] The unloading structure includes a limiting rod 301, a first limiting hole 302 is formed through the top of the upper die seat 101 from top to bottom, a first spring 303 is arranged in the first limiting hole 302, the top end of the first spring 303 is fixedly connected to the first limiting hole 302, the bottom end of the first spring 303 is fixedly connected to the limiting rod 301, the limiting rod 301 sequentially passes through the upper pad 102, the upper clamping plate 103, the stop plate 104 and is fixedly connected to the upper stripping plate 105, and the upper pad 102 and the upper clamping plate 103 are both slidably connected to the limiting rod 301;

[0045] When the first spring 303 is in the initial state, a gap is provided between the stop plate 104 and the upper clamping plate 103 .

[0046] The above-mentioned unloading mechanism 3 fixes the upper die seat 101, the upper pad 102 and the upper clamping plate 103 in sequence as a whole, the stop plate 104 is fixed to the upper stripping plate 105 as a whole, a first limiting hole 302 is opened on the upper die seat 101 at the top, the limiting rod 301 passes through the first limiting hole 302 to the upper stripping plate 105, and a through hole is passed through the upper stripping plate 105, and a first spring 303 is arranged in the first limiting hole 302, the limiting hole is blocked with a screw plug, one end of the first spring 303 abuts on the limiting rod 301, and the other end abuts on the screw plug, the first spring 303 is relatively fixed in the first limiting hole 302, and the limiting rod 301 is fixed to the upper stripping plate 105 as a whole;

[0047] Moreover, when the first spring 303 is in the initial state, there is a gap between the stop plate 104 and the upper clamping plate 103, and at this time, the limiting rod 301 penetrates and extends out of the bottom of the upper stripping plate 105; in the process of the upper die group 1 and the lower die group 2 approaching each other and applying pressure, the limiting rod 301 is pressed back into the first limiting hole 302, and the first spring 303 is deformed at the same time. After the upper die group 1 and the lower die group 2 are separated, the first spring 303 restores the deformation and pushes the limiting rod 301 to extend out of the upper stripping plate 105, separating the material belt from the punch, and completing the unloading operation.

[0048] In a further embodiment, the first punch 4 includes two guide hole punches 401 and four product punching punches 402, the two guide hole punches 401 are arranged at positions corresponding to the inner side of the edge of the material belt on the upper template, and the four product punching punches 402 are divided into two groups, and the two groups of product punching punches 402 correspond to the hole positions at both ends of the C-shaped material products on the material belt;

[0049] The lower mold plate 201 is provided with a groove corresponding to the first punch 4 .

[0050] The second punches 5 are provided with two, and the two second punches 5 are arranged at positions on the upper template corresponding to the material products on the upper and lower sides of the material belt;

[0051] The second punch 5 includes a first punching member 501 with a quarter arc shape corresponding to the outer side of the material product, and the first punching member 501 is symmetrically arranged with another quarter arc structure along the traveling direction of the material belt, and also includes a second punching member 502 with a half arc shape corresponding to the inner side of the material product, and the two second punches 5 are centrally symmetrically arranged, respectively corresponding to the positions of two rows of materials on the material belt;

[0052] The lower mold plate 201 is provided with a groove corresponding to the second punch 5 .

[0053] The third punches 6 are provided with two, and the two third punches 6 are arranged at positions on the upper template corresponding to the material products on the upper and lower sides of the material belt, and the two third punches 6 are centrally symmetrically arranged;

[0054] The third punch 6 includes a 1 / 2 arc-shaped first notch 601 and a 1 / 2 arc-shaped second notch 602, the first notch 601 and the second notch 602 are arranged concentrically, and a gap is arranged between the first notch 601 and the second notch 602, the outer arc radius of the first notch 601 is larger than the outer arc radius of the material product, the inner arc radius of the second notch 602 is smaller than the inner arc radius of the material product, and the inner arc radius of the first notch 601 is larger than the outer arc radius of the second notch 602, so as to form a gap at the corresponding position of the material product;

[0055] The lower mold plate 201 is provided with a groove corresponding to the third punch 6 .

[0056] The fourth punches 7 are provided with two, and the two fourth punches 7 are arranged at positions on the upper template corresponding to the material products on the upper and lower sides of the material belt, and the two fourth punches 7 are centrally symmetrically arranged;

[0057] The cross section of the fourth punch 7 is a rectangular structure, and its cross section is larger than the outer arc diameter of the material product. The bottom of the fourth punch 7 is an arc structure, which is used to bend the material product;

[0058] The lower mold plate 201 is provided with a groove corresponding to the fourth punch 7 .

[0059] The fifth punch 8 is provided with one, and the fifth punch 8 includes two punching parts, and the two punching parts each include a pressure plate 801 adapted to the inner arc of the material product, and a pressure rod 802 extending from the pressure plate 801 toward the opening direction of the material product, the two punching parts are fixedly connected, and the two punching parts are centrally symmetrically arranged.

[0060] The products punched out on the material belt by the first punch 4, the second punch 5, the third punch 6, the fourth punch 7 and the fifth punch 8 are arranged as follows:

[0061] The first product is on the lower side of the material belt, with the C-shaped opening facing upwards. The second product has its C-shaped opening facing downwards, and the front end of the C-shaped opening is placed in the C-shaped opening of the first product, and the tail end of the C-shaped opening of the first product is placed in the C-shaped buckle of the second product. The third product has its C-shaped opening facing upwards, and the front end of the C-shaped opening is placed in the C-shaped opening of the second product, and the tail end of the C-shaped opening of the second product is placed in the C-shaped opening of the third product. The arrangement of subsequent products is similar.

[0062] The first punch 4, the second punch 5, the third punch 6, and the fourth punch 7 are all provided in two groups. The first punch 4 is used to punch guide holes and circular holes of products on the material belt. Each group of first punches 4 includes a guide hole punch 401 and two product punching punches 402. The two guide hole punches 401 are respectively arranged at the upper position of the inner side of the edges on both sides of the material belt. The guide holes are punched out on the material belt in advance to facilitate the subsequent insertion of the pin 12 into the guide hole to position the material belt. There are four product punching punches 402 in two groups. The two first punches 4 in the first group are used to punch the circular holes at both ends of the product on the lower side of the material belt, and the two first punches 4 in the second group are used to punch the circular holes at both ends of the product on the upper side of the boring belt.

[0063] In addition, a group of guide hole punches 401 are provided, and the guide hole punches 401 correspond to the center position of the product, and the guide hole is punched out at the center position of the product. When the edge material is cut off during the subsequent punching process, the subsequent positioning is performed through the guide hole at the center position of the product.

[0064] The above-mentioned second punch 5 is used to punch out the shape of the product. The second punch 5 is set to a first punching piece 501 with a 1 / 4 arc shape on both sides and a second punching piece 502 with a 1 / 2 arc shape. After punching a step of the material strip, the semicircular shape of the product is spliced ​​on the material strip, which can save the overall material cost of the cutter and the insert, and shorten the overall dimensions of the entire mold.

[0065] The third punch 6 mentioned above is used to punch grooves in the product. The first notch part 601 and the second notch part 602 on the third punch 6 are concentric circle structures with the product, and the first notch part 601 and the second notch part 602 are both 1 / 2 arc structures. The outer arc radius of the first notch part 601 is larger than the outer arc radius of the product, and the inner arc radius of the second notch part 602 is smaller than the inner arc radius of the product. The inner arc radius of the first notch part 601 is larger than the outer arc radius of the second notch part 602, so that the first notch part 601 and the second notch part 602 have control in the middle of the product shape. When punching, the first notch part 601 and the second notch part 602 are pressed on the upper and lower sides of the product shape to punch grooves on the upper and lower sides of the product.

[0066] The fourth punch 7 is used to bend the product. The upper stripping plate 105 is fixed with a square structure, and a curved structure is provided at the bottom thereof, which is concave toward one side of the upper stripping plate 105. Correspondingly, an insert with a corresponding arc is provided on the lower template 201, so that the product is bent by applying pressure from top to bottom.

[0067] The above-mentioned fifth punch 8 includes two punching parts, and the two punching parts are pressure plate 801 structures adapted to the inner arc shape of the product, which can cut the position where the inner side of the product is connected to the material belt. A pressure rod 802 is set on the side where the two punching parts are close to each other, and the pressure rod 802 and the pressure plate 801 form a "mountain" shaped structure. The two gaps of the punching parts correspond to the two end parts of the two adjacent products. The two ends of the product are embedded in the interior of the "mountain" shaped punching part, and the remaining part is cut by the fifth punch 8, thereby completing the punching of the entire product.

[0068] In a further embodiment, a push rod 9 is further provided in the upper mold group 1, and the push rod 9 passes through the upper stripping plate 105, the stop plate 104, the upper clamping plate 103 and the upper pad 102 in sequence. A second limiting hole 10 is opened in the upper mold base 101, and the push rod 9 passes through the second limiting hole 10. A second spring 11 is provided in the second limiting hole 10, and one end of the second spring 11 is fixedly connected to the push rod 9, and the other end of the second spring 11 is fixed in the second limiting hole 10.

[0069] The above-mentioned ejector pin 9 is arranged at the tail end of the mold (the side where the material belt enters is the head end), and a second limiting hole 10 is opened on the upper mold base 101. The ejector pin 9 passes through the second limiting hole 10 to pass through the upper stripping plate 105, and a second spring 11 is arranged in the second limiting hole 10. The second limiting hole 10 is blocked with a screw plug, and the second spring 11 is fixed between the ejector pin 9 and the screw plug. In the process of the upper mold assembly 1 and the lower mold assembly 2 approaching and contacting, the ejector pin 9 compresses the second spring 11 and retracts it into the second limiting hole 10. After separation, the second spring 11 recovers, pops out the ejector pin 9, and ejects the product.

[0070] The upper die assembly 1 is also provided with an insertion pin 12, which passes through the upper release plate 105, the stop plate 104, the upper clamping plate 103 and the upper pad 102 in sequence. A third limiting hole 13 is opened in the upper die base 101, and the insertion pin 12 passes through the third limiting hole 13. A third spring 14 is provided in the third limiting hole 13, one end of the third spring 14 is fixedly connected to the insertion pin 12, and the other end of the third spring 14 is fixed to the third limiting hole 13.

[0071] There are a plurality of the above-mentioned pins 12, which are arranged at intervals along the direction in which the material belt travels, and a third limiting hole 13 is opened on the upper die seat 101 corresponding to each punch. The pin 12 passes through the third limiting hole 13 and exits the upper stripping plate 105. A third spring 14 is arranged in the third limiting hole 13, and the third limiting hole 13 is blocked by a screw plug. The third spring 14 is fixed between the pin 12 and the screw plug. In the process of the upper die assembly 1 and the lower die assembly 2 approaching, the part of the pin 12 extending out of the upper stripping plate 105 is first inserted into the guide hole punched out by the first punching hole to position the material belt, and then the punch contacts the material belt to perform the punching operation. After the punching is completed, the third spring 14 recovers to push the pin 12 out again.

[0072] A plurality of groups of sinking and floating pins 15 are arranged in the lower die assembly 2, and each group of sinking and floating pins 15 includes two sinking and floating pin 15 structures, and the two sinking and floating pin 15 structures are symmetrically arranged on both sides of the material belt. The sinking and floating pins 15 pass through the lower die plate 201 and the lower pad 202 from top to bottom in sequence, and a fourth limiting hole 16 is opened in the lower die base 203, and a fourth spring 17 is arranged in the fourth limiting hole 16, and the bottom end of the sinking and floating pin 15 is fixedly connected to one end of the fourth spring 17, and the other end of the fourth spring 17 is fixedly connected to the fourth limiting hole 16.

[0073] The above-mentioned sinking and floating pins 15 are arranged in multiple groups. As the shape of the material strip changes after being punched, the sinking and floating pins 15 are arranged in multiple ways. The initial material strip is a square long strip structure, and circular sinking and floating pins 15 are used for feeding and removing materials. As the shape of the product on the material strip is punched, the sinking and floating pins 15 are set to square sinking and floating pins 15. At the last fifth punch 8, the sinking and floating pins 15 are set to rectangular sinking and floating pins 15. After the cutting shape, traditional circular sinking and floating pins cannot be used for feeding, and only rectangular guide pins can be used for lifting and feeding, thereby realizing the steps of bending and blanking and cutting.

[0074] The above specific embodiments may be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments.

[0075] The technical features of the above embodiments may be arbitrarily combined (as long as there is no contradiction in the combination of these technical features). To make the description concise, not all possible combinations of the technical features in the above embodiments are described; these embodiments that are not explicitly written should also be considered to be within the scope of this specification.

[0076] The present invention is described in more detail through general description and specific embodiments. It should be noted that, without departing from the concept of the present invention, it is obvious that several variations and improvements can be made to these specific embodiments, which all belong to the protection scope of this application. Therefore, the protection scope of the patent of this application shall be subject to the attached claims.

Claims

1. A new type of limiter stamping die, characterized in that: Including upper die set and lower die set; The upper die assembly includes an upper die base, an upper pad, an upper clamping plate, a stop plate and an upper stripping plate arranged from top to bottom. The upper die base, the upper pad and the upper clamping plate are fixedly connected in sequence, the upper stripping plate is fixedly connected to the stop plate, and a discharge mechanism is provided between the upper stripping plate and the upper die base; The lower die assembly includes a lower die plate, a lower pad and a lower die base arranged in sequence from top to bottom, and the lower die base, the lower pad and the lower die plate are fixedly connected in sequence; The bottom of the upper stripping plate is provided with a first punch, a second punch, a third punch, a fourth punch and a fifth punch from left to right, wherein the first punch punches holes in the product material, the second punch punches the shape of the product material, the third punch punches grooves in the product material, the fourth punch bends the product material, and the fifth punch separates the product from the material.

2. The novel stopper stamping die according to claim 1, characterized in that: The unloading structure includes a limiting rod, a first limiting hole is opened from top to bottom on the top of the upper die seat, a first spring is arranged in the first limiting hole, the top end of the first spring is fixedly connected to the first limiting hole, and the bottom end of the first spring is fixedly connected to the limiting rod, the limiting rod passes through the upper pad, the upper clamping plate, the stop plate and the stop plate in sequence and is fixedly connected to the upper stripping plate, and the upper pad and the upper clamping plate are both slidably connected to the limiting rod; In the initial state of the first spring, a gap is provided between the stop plate and the upper clamping plate.

3. The novel stopper stamping die according to claim 1, characterized in that: The first punch includes two pilot hole punches and four product punches. The two pilot hole punches are arranged on the upper template at positions corresponding to the inner side of the edge of the material strip. The four product punches are divided into two groups. The two groups of product punches correspond to the hole positions at both ends of the C-shaped material product on the material strip. The lower template is provided with a groove corresponding to the first punch.

4. The novel stopper stamping die according to claim 1, characterized in that: There are two second punches, and the two second punches are arranged on the upper template at positions corresponding to the material products on the upper and lower sides of the material belt; The second punch includes a first punching member with a quarter arc shape corresponding to the outer side of the material product, and the first punching member is symmetrically arranged with another quarter arc structure along the direction of travel of the material belt, and also includes a second punching member with a half arc shape corresponding to the inner side of the material product, and the two second punches are symmetrically arranged, corresponding to the positions of the two rows of materials on the material belt respectively; The lower template is provided with a groove corresponding to the second punch.

5. The novel stopper stamping die according to claim 1, characterized in that: There are two third punches, and the two third punches are arranged at positions on the upper template corresponding to the material products on the upper and lower sides of the material belt, and the two third punches are arranged symmetrically; The third punch includes a first notch part in the shape of a half circular arc and a second notch part in the shape of a half circular arc. The first notch part and the second notch part are arranged concentrically, and a gap is set between the first notch part and the second notch part. The outer arc radius of the first notch part is larger than the outer arc radius of the material product, and the inner arc radius of the second notch part is smaller than the inner arc radius of the material product. The inner arc radius of the first notch part is larger than the outer arc radius of the second notch part, forming a gap at a corresponding position of the material product. The lower template is provided with a groove corresponding to the third punch.

6. The novel stopper stamping die according to claim 1, characterized in that: There are two fourth punches, and the two fourth punches are arranged at positions on the upper template corresponding to the material products on the upper and lower sides of the material belt, and the two fourth punches are arranged symmetrically; The cross section of the fourth punch is a rectangular structure, and its cross section is larger than the outer arc diameter of the material product. The bottom of the fourth punch is an arc structure, which is used to bend the material product; The lower template is provided with a groove corresponding to the fourth punch.

7. The novel stopper stamping die according to claim 1, characterized in that: The fifth punch is provided with one, and the fifth punch includes two punching parts. The two punching parts each include a pressure plate adapted to the inner arc of the material product, and a pressure rod extending from the pressure plate toward the opening direction of the material product. The two punching parts are fixedly connected, and the two punching parts are centrally symmetrically arranged.

8. The novel stopper stamping die according to claim 1, characterized in that: A push rod is also provided in the upper mold group, and the push rod passes through the upper stripping plate, the stop plate, the upper clamping plate and the upper pad in sequence. A second limiting hole is opened in the upper mold base, and the push rod passes through the second limiting hole. A second spring is provided in the second limiting hole, and one end of the second spring is fixedly connected to the push rod, and the other end of the second spring is fixed in the second limiting hole.

9. The novel stopper stamping die according to claim 1, characterized in that: The upper die assembly is also provided with an insertion pin, which passes through the upper stripping plate, the stop plate, the upper clamping plate and the upper pad in sequence. A third limiting hole is opened in the upper die base, and the insertion pin passes through the third limiting hole. A third spring is provided in the third limiting hole. One end of the third spring is fixedly connected to the insertion pin, and the other end of the third spring is fixed to the third limiting hole.

10. The novel stopper stamping die according to claim 1, characterized in that: Multiple groups of sinking and floating pins are arranged in the lower mold group, and each group of sinking and floating pins includes two sinking and floating pin structures. The two sinking and floating pin structures are symmetrically arranged on both sides of the material belt. The sinking and floating pins pass through the lower mold plate and the lower pad from top to bottom. A fourth limiting hole is opened in the lower mold base, and a fourth spring is arranged in the fourth limiting hole. The bottom end of the sinking and floating pin is fixedly connected to one end of the fourth spring, and the other end of the fourth spring is fixedly connected to the fourth limiting hole.

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