Drawing die and drawing system

Abstract

The utility model relates to the technical field of metal profile processing, in particular to a drawing die and a drawing system, which comprise a die base, and a mounting cavity is formed on the die base; the feeding straightening mechanism comprises a first template, and a feeding straightening through hole is formed in the first template; the forming mold assembly comprises a second mold plate and four forming roller assemblies. A drawing cavity is formed in the second template; a forming through hole is defined by the four forming roller assemblies. The discharging straightening mechanism comprises a third template, and a discharging straightening through hole is formed in the third template; the central axes of the feeding straightening through hole, the forming through hole and the discharging straightening through hole are located on the same horizontal axis. Through the combined action of the feeding straightening mechanism, the forming die assembly and the discharging straightening mechanism, the part, in the forming die assembly, of a material is always kept to be centered, so that the forming uniformity is guaranteed, meanwhile, the service life of the die is prolonged, and the production efficiency of the die is improved.

Description

Technical Field

[0001] This utility model relates to the field of metal profile processing technology, and in particular to a drawing die and drawing system. Background Technology

[0002] When manufacturing U-shaped profiles, an appropriate processing technology needs to be selected based on a comprehensive consideration of the material's cross-sectional dimensions, hardness, and strength. For smaller cross-sectional dimensions, generally referring to materials with a length and width of 20mm × 8mm or less, coils can be used for production using a cold rolling process. For larger cross-sectional dimensions, i.e., materials with a length and width of 20mm × 8mm or more, long materials are used, typically exceeding 2000mm in length, and are produced using a fixed-die cold drawing process.

[0003] In existing technologies, U-shaped profiles are mostly manufactured using a fixed-die cold drawing process, but the following technical problems may occur during the production process:

[0004] 1. The relative position of the raw material in the guide device with the fixed die and jaws is difficult to adjust precisely to the same center line, resulting in coaxiality deviation. This deviation will cause two consequences: 1. Material accumulates on one side at the die entrance, causing local stress concentration, leading to premature wear or breakage of the die; 2. When the jaw clamping position is off, the material is subjected to excessive force on one side during the drawing process, resulting in scratch defects.

[0005] Second, because the adjustment relies on repeated manual calibration, each time the equipment is changed or restarted, it takes several hours to debug, which shortens the effective operating time of the equipment, extends the production cycle, and increases labor costs. Utility Model Content

[0006] In order to overcome the shortcomings of the prior art, the purpose of this utility model is to provide a drawing die and drawing system, which, through the combined action of the feeding straightening mechanism, the forming die assembly and the discharging straightening mechanism, ensures that the material in the forming die assembly always maintains centering, thereby ensuring the uniformity of forming, and also improving the service life of the die and production efficiency.

[0007] The first aspect of this utility model is to provide a drawing die, including a die base, wherein the die base has mounting cavities extending through its front and rear sides; and further comprising:

[0008] A feeding straightening mechanism, the feeding straightening mechanism including a first template installed at the front end of the mounting cavity, the first template having a feeding straightening through hole formed thereon;

[0009] At least one set of forming mold assembly, the forming mold assembly including a second template installed in the middle of the mounting cavity and four forming roller assemblies; a drawing cavity is formed inside the second template; the four forming roller assemblies are respectively installed on the upper side, lower side, left side and right side of the drawing cavity; a forming through hole is formed between the four forming roller assemblies;

[0010] The discharge straightening mechanism includes a third template installed at the rear end of the mounting cavity, and the third template has a discharge straightening through hole formed thereon.

[0011] The central axes of the feed straightening through hole, the forming through hole, and the discharge straightening through hole are located on the same horizontal axis.

[0012] In a preferred embodiment of the first aspect of this utility model, the drawing cavity is a cross-shaped second through hole, the second through hole including second through slots facing the four directions of up, down, left, and right respectively; the four forming roller assemblies are respectively installed in the four second through slots;

[0013] The forming roller assembly includes a forming roller, a second connecting seat, and a second adjusting mechanism; the forming roller is rotatably mounted on the second connecting seat, the second connecting seat is slidably mounted in the drawing cavity, the second adjusting mechanism is connected to the second connecting seat, and the second adjusting mechanism drives the second connecting seat and the forming roller to slide along the length direction of the second through groove.

[0014] In a preferred embodiment of the first aspect of this utility model, the feeding straightening mechanism further includes four feeding roller assemblies; a receiving cavity is formed inside the first template; the four feeding roller assemblies are respectively installed on the upper side, lower side, left side and right side of the receiving cavity; the feeding straightening through hole is formed by the four feeding roller assemblies surrounding each other.

[0015] In a preferred embodiment of the first aspect of this utility model, the receiving cavity is a cross-shaped first through hole, the first through hole including first through slots facing the four directions of up, down, left, and right respectively; the four feed roller assemblies are respectively installed in the four first through slots;

[0016] The feed roller assembly includes a feed roller, a first connecting seat, and a first adjusting mechanism; the feed roller is rotatably mounted on the first connecting seat, the first connecting seat is slidably mounted in the first through groove, the first adjusting mechanism is connected to the first connecting seat, and the first adjusting mechanism drives the first connecting seat and the feed roller to slide along the length direction of the first through groove.

[0017] In a preferred embodiment of the first aspect of this utility model, the discharge straightening mechanism further includes four discharge roller assemblies; a receiving cavity is formed inside the third template; the four discharge roller assemblies are respectively installed on the upper side, lower side, left side and right side of the receiving cavity; the discharge straightening through hole is formed by the four discharge roller assemblies surrounding each other.

[0018] In a preferred embodiment of the first aspect of this utility model, the receiving cavity is a cross-shaped third through hole, the third through hole including third through grooves facing the four directions of up, down, left, and right respectively; the four discharge roller assemblies are respectively installed in the four third through grooves;

[0019] The discharge roller assembly includes a discharge roller, a third connecting seat, and a third adjusting mechanism; the discharge roller is rotatably mounted on the third connecting seat, the third connecting seat is slidably mounted in the third through groove, the third adjusting mechanism is connected to the third connecting seat, and the third adjusting mechanism drives the third connecting seat and the discharge roller to slide along the length direction of the third through groove.

[0020] In a first aspect of this utility model, as a preferred embodiment, the shape and size of the feeding straightening through hole match the shape and size of the pre-formed material, the shape and size of the forming through hole match the shape and size of the finished profile, and the shape and size of the discharging straightening through hole match the shape and size of the finished profile.

[0021] In a first aspect of this utility model, as a preferred embodiment, the longitudinal cross-sectional shape of the formed through hole is U-shaped or H-shaped.

[0022] In a preferred embodiment of the first aspect of this utility model, a gap of less than or equal to 10 mm is formed between any two of the feeding straightening mechanism, at least one set of forming mold components and the discharging straightening mechanism.

[0023] The second aspect of this utility model is to provide a drawing system, including the drawing die of the first aspect of this utility model.

[0024] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0025] The feeding and straightening mechanism of this invention straightens the raw material entering the mold through the feeding and straightening through-hole, ensuring that the material maintains the correct posture (straight and horizontal entry) and shape when entering the forming mold assembly. The discharge and straightening mechanism straightens the finished product after drawing, ensuring that the finished product is also straight and horizontal when leaving the mold. The combined action of these two mechanisms ensures that the material remains centered within the forming mold assembly, thereby guaranteeing the uniformity of the forming process. Because the material remains centered throughout the forming process, uneven stress on the mold caused by material skewing or twisting is avoided. A mold with uniform stress experiences less wear during long-term use, thus extending the mold's service life. The presence of the feeding and discharge straightening mechanisms makes it easier to ensure the centering of the material within the mold. This means that during mold debugging, less time needs to be spent adjusting the material's centering, significantly shortening debugging time and improving production efficiency. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the drawing die of this utility model;

[0027] Figure 2 This is a partial sectional view of the drawing die of this utility model;

[0028] Figure 3 This is a schematic diagram of the feeding straightening mechanism, the forming mold assembly, and the discharging straightening mechanism of this utility model;

[0029] Figure 4 This is a schematic diagram of the feeding and straightening mechanism of this utility model;

[0030] Figure 5 This is a front view of the feeding and straightening mechanism of this utility model;

[0031] Figure 6 This is an enlarged schematic diagram of the feed straightening through hole of the feed straightening mechanism of this utility model;

[0032] Figure 7 This is a schematic diagram of the structure of the feed roller assembly of this utility model;

[0033] Figure 8 This is a schematic diagram of the molding die assembly of this utility model;

[0034] Figure 9 This is a front view of the molding die assembly of this utility model;

[0035] Figure 10 This is an enlarged schematic diagram of the molding through hole in the molding die assembly of this utility model;

[0036] Figure 11 This is a schematic diagram of the forming roller assembly of this utility model;

[0037] Figure 12 This is a schematic diagram of the material discharge straightening mechanism of this utility model;

[0038] Figure 13 This is a front view of the discharge straightening mechanism of this utility model;

[0039] Figure 14 This is an enlarged schematic diagram of the discharge straightening through hole of the discharge straightening mechanism of this utility model;

[0040] Figure 15 This is a schematic diagram of the structure of the discharge roller assembly of this utility model;

[0041] Figure 16 This is a structural schematic diagram comparing the cross-sections of the preformed material and the finished profile of this utility model;

[0042] Figure 17 This is a schematic diagram of the drawing system of this utility model.

[0043] In the picture:

[0044] 100. Drawing dies;

[0045] 110. Mold base; 111. Mounting cavity;

[0046] 120. Feeding straightening mechanism; 1201. Feeding straightening through hole; 121. First template; 1211. Receiving cavity; 122. Feeding roller assembly; 1221. Feeding roller; 1222. First connecting seat; 1223. First adjusting mechanism;

[0047] 130. Forming mold assembly; 1301. Forming through hole; 131. Second template; 1311. Drawing cavity; 132. Forming roller assembly; 1321. Forming roller; 1322. Second connecting seat; 1323. Second adjusting mechanism;

[0048] 140. Discharge straightening mechanism; 1401. Discharge straightening through hole; 141. Third template; 1411. Receiving cavity; 142. Discharge roller assembly; 1421. Discharge roller; 1422. Third connecting seat; 1423. Third adjusting mechanism;

[0049] 200. Guiding device;

[0050] 300. Clamping mechanism;

[0051] 400. Pulling drive mechanism;

[0052] 500. Pre-formed materials;

[0053] 600. Finished profiles. Detailed Implementation

[0054] The utility model will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments. Unless otherwise specified, the materials and equipment used in this embodiment are all commercially available. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0055] In the description of this application, it should be understood that the terms "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In the description of this application, "a plurality of" means two or more, unless otherwise precisely specified.

[0056] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "connected," "linked," and "connected" should be interpreted broadly. For example, they can refer to a fixed connection, a connection through an intermediary, or a connection within two elements or an interaction between two elements. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0057] The terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such process, method, product, or apparatus.

[0058] Example 1:

[0059] Please refer to Figure 1-16 As shown, this embodiment provides a drawing die 100, including a die base 110, on which mounting cavities 111 are formed extending through its front and rear sides; it also includes:

[0060] The feeding straightening mechanism 120 includes a first template 121 installed at the front end of the mounting cavity 111, and a feeding straightening through hole 1201 is formed on the first template 121.

[0061] At least one set of forming mold assembly 130, the forming mold assembly 130 includes a second template 131 installed in the middle of the mounting cavity 111 and four forming roller assemblies 132; a drawing cavity 1311 is formed inside the second template 131; the four forming roller assemblies 132 are respectively installed on the upper side, lower side, left side and right side of the drawing cavity 1311; a forming through hole 1301 is formed between the four forming roller assemblies 132;

[0062] The discharge straightening mechanism 140 includes a third template 141 installed at the rear end of the mounting cavity 111, and a discharge straightening through hole 1401 is formed on the third template 141.

[0063] The central axes of the feed straightening through hole 1201, the forming through hole 1301, and the discharge straightening through hole 1401 are located on the same horizontal axis.

[0064] Based on the above structure, the feeding straightening mechanism 120 of this utility model straightens the raw material entering the mold through the feeding straightening through hole 1201, ensuring that the material maintains the correct posture (straight and horizontal entry) and shape when entering the forming mold assembly 130. The discharge straightening mechanism 140 straightens the finished product after drawing, ensuring that the finished product is also straight and horizontal when leaving the mold. The two mechanisms work together to ensure that the material in the forming mold assembly 130 always maintains centering, thereby ensuring the uniformity of forming. Since the material always maintains centering during the forming process, uneven mold stress caused by material skewing or twisting is avoided. A mold with uniform stress experiences less wear during long-term use, thereby extending the mold's service life. The existence of the feeding straightening mechanism 120 and the discharge straightening mechanism 140 makes it easier to ensure the centering of the material in the mold. This means that during mold debugging, less time needs to be spent adjusting the material's centering, thus greatly shortening the debugging time and improving production efficiency. In this way, the product accuracy can be within ±0.05mm, and it can be applied to high-strength materials with larger cross-sectional dimensions of 20mm×8mm and above, such as stainless steel SUS440C, bearing steel (GCr15), and titanium alloy (TC4).

[0065] Since the feeding and discharging straightening mechanisms are not subjected to significant stress, their materials are generally alloy steel, such as SKD61 or bearing steel. However, because the forming die components are subjected to greater stress and require higher die quality, high-speed steel or cemented carbide steel can be selected as the materials.

[0066] In a preferred embodiment of the present invention, the drawing cavity 1311 is a cross-shaped second through hole, the second through hole including second through slots facing the four directions of up, down, left, and right respectively; four forming roller assemblies 132 are respectively installed in the four second through slots;

[0067] The forming roller assembly 132 includes a forming roller 1321, a second connecting seat 1322, and a second adjusting mechanism 1323. The forming roller 1321 is rotatably mounted on the second connecting seat 1322, and the second connecting seat 1322 is slidably mounted in the drawing cavity 1311. The second adjusting mechanism 1323 is connected to the second connecting seat 1322, and the second adjusting mechanism 1323 drives the second connecting seat 1322 and the forming roller 1321 to slide along the length direction of the second through groove.

[0068] Based on the above structure, the cross-shaped drawing cavity 1311 design of this utility model allows the four forming roller assemblies 132 to clamp and draw the raw material from four directions: up, down, left, and right. This multi-directional clamping method helps ensure uniform force on the raw material during the drawing process, thereby improving the forming accuracy. The forming roller 1321 in the forming roller assembly 132 is rotatably mounted on the second connecting seat 1322, which in turn is slidably mounted in the drawing cavity 1311. This design allows the forming roller assembly 132 to replace the forming roller 1321 with one of suitable shape and size according to the shape and size of the raw material, to adapt to different drawing requirements. The second adjusting mechanism 1323 is connected to the second connecting seat 1322 and is used to drive the second connecting seat 1322 and the forming roller 1321 to slide along the length of the through groove. This design allows for convenient adjustment of the position of the forming roller assembly 132 during mold debugging to achieve the best drawing effect. At the same time, the forming roller assembly 132 can be easily disassembled and replaced during mold maintenance.

[0069] In a preferred embodiment of the present invention, the second adjusting mechanism 1323 is a second lead screw. One end of the second lead screw passes through the second template 131 and is threadedly connected to the second connecting seat 1322. By rotating the second lead screw, the second connecting seat 1322 and the forming roller 1321 are driven to slide in the second through groove.

[0070] Based on the above structure, when the position of the forming roller 1321 needs to be adjusted, the operator can use tools (such as wrenches, screwdrivers, etc.) or directly rotate the second lead screw by hand. Due to the threaded engagement between the second lead screw and the second connecting seat 1322, relative motion is generated when the second lead screw is rotated. Specifically, the rotational motion of the second lead screw is converted into linear motion of the second connecting seat 1322 along the axial direction of the second lead screw. This relative motion causes the second connecting seat 1322 and the forming roller 1321 fixed thereon to slide along the axial direction of the second lead screw within the second through groove. By controlling the rotation direction and the number of rotations of the second lead screw, the position of the forming roller 1321 within the second through groove can be precisely adjusted.

[0071] In a preferred embodiment of the present invention, the feeding straightening mechanism 120 further includes four feeding roller assemblies 122; a receiving cavity 1211 is formed inside the first template 121; the four feeding roller assemblies 122 are respectively installed on the upper side, lower side, left side and right side of the receiving cavity 1211; and a feeding straightening through hole 1201 is formed between the four feeding roller assemblies 122.

[0072] Based on the above structure, when the raw material enters the mold, it first comes into contact with four feed roller assemblies 122. These four feed roller assemblies 122 apply a certain pressure to the raw material by rotating, causing it to advance along the center line of the feed straightening through-hole 1201. Since the four feed roller assemblies 122 are located in the upper, lower, left, and right directions of the through-hole, they can simultaneously straighten the raw material. If the raw material is bent or skewed before entering the mold, the resultant force of the four feed roller assemblies 122 will gradually restore it to a straight state. In this way, this feed straightening mechanism 120, through the coordinated work of the four feed roller assemblies 122, achieves precise straightening and stable conveying of the raw material, providing a strong guarantee for the subsequent drawing forming process.

[0073] In a preferred embodiment of the present invention, the receiving cavity 1211 is a cross-shaped first through hole, the first through hole including first through slots facing the four directions of up, down, left, and right respectively; four feed roller assemblies 122 are respectively installed in the four first through slots;

[0074] The feed roller assembly 122 includes a feed roller 1221, a first connecting seat 1222, and a first adjusting mechanism 1223. The feed roller 1221 is rotatably mounted on the first connecting seat 1222, and the first connecting seat 1222 is slidably mounted in the first through groove. The first adjusting mechanism 1223 is connected to the first connecting seat 1222, and the first adjusting mechanism 1223 drives the first connecting seat 1222 and the feed roller 1221 to slide along the length direction of the first through groove.

[0075] Thus, through the design of the cross-shaped first through hole, the feed roller 1221, the first connecting seat 1222, and the first adjusting mechanism 1223, this utility model achieves flexible feeding and continuous, stable conveying of raw materials from four directions. Simultaneously, the precise adjustment of the first adjusting mechanism 1223 adapts to raw materials of different sizes and shapes, improving the versatility and flexibility of the equipment.

[0076] In a preferred embodiment of the present invention, the first adjusting mechanism 1223 is a first lead screw, one end of which passes through the first template 121 and is connected to the first connecting seat 1222. By rotating the first lead screw, the first connecting seat 1222 and the feed roller 1221 are driven to slide in the first through groove.

[0077] Based on the above structure, when the position of the feed roller 1221 needs to be adjusted, the operator can use tools (such as wrenches, screwdrivers, etc.) or directly rotate the first lead screw by hand. Due to the threaded engagement between the first lead screw and the first connecting seat 1222, relative motion is generated when the first lead screw is rotated. Specifically, the rotational motion of the first lead screw is converted into linear motion of the first connecting seat 1222 along the axial direction of the first lead screw. This relative motion drives the second connecting seat and the feed roller 1221 fixed thereon to slide along the axial direction of the first lead screw within the first through groove. By controlling the rotation direction and the number of rotations of the first lead screw, the position of the forming roller 1321 within the first through groove can be precisely adjusted.

[0078] In a preferred embodiment of the present invention, the discharge straightening mechanism 140 further includes four discharge roller assemblies 142; a receiving cavity 1411 is formed inside the third template 141; the four discharge roller assemblies 142 are respectively installed on the upper side, lower side, left side and right side of the receiving cavity 1411; and the four discharge roller assemblies 142 surround each other to form a discharge straightening through hole 1401.

[0079] Based on the above structure, after passing through the forming mold assembly 130 and other processing stages, the raw material enters the discharge straightening mechanism 140. When the raw material passes through the discharge straightening through hole 1401, it is supported and straightened by four discharge roller assemblies 142. The rotation and position adjustment of the discharge roller assemblies 142 ensure that the raw material can pass through the discharge straightening through hole 1401 in a straight line.

[0080] In a preferred embodiment of the present invention, the receiving cavity 1411 is a cross-shaped third through hole, the third through hole including third through grooves facing the four directions of up, down, left and right respectively; the four discharge roller assemblies 142 are respectively installed in the four third through grooves;

[0081] The discharge roller assembly 142 includes a discharge roller 1421, a third connecting seat 1422, and a third adjusting mechanism 1423. The discharge roller 1421 is rotatably mounted on the third connecting seat 1422, and the third connecting seat 1422 is slidably mounted in the third through groove. The third adjusting mechanism 1423 is connected to the third connecting seat 1422, and the third adjusting mechanism 1423 drives the third connecting seat 1422 and the discharge roller 1421 to slide along the length direction of the third through groove.

[0082] In a preferred embodiment of this utility model, the third adjusting mechanism 1423 is a third lead screw. One end of the third lead screw passes through the third template 141 and connects to the third connecting seat 1422. By rotating the third lead screw, the third connecting seat 1422 and the discharge roller 1421 slide within the third through groove. The adjusting principle of the third adjusting mechanism 1423 is the same as that of the first adjusting mechanism 1223 and the second adjusting mechanism 1323.

[0083] In a preferred embodiment of this invention, the shape and size of the feed straightening through hole 1201 match the shape and size of the pre-formed material 500, the shape and size of the forming through hole 1301 match the shape and size of the finished profile 600, and the shape and size of the discharge straightening through hole 1401 match the shape and size of the finished profile 600. Thus, by ensuring that the feed, clamping, and discharge through holes match the shape and size of the material or finished product, the forming accuracy of the finished product can be significantly improved.

[0084] In a preferred embodiment of this utility model, the longitudinal cross-sectional shape of the formed through hole 1301 is U-shaped or H-shaped.

[0085] When a U-shaped finished profile 600 needs to be processed, an annular protrusion is formed in the middle of the outer surface of the upper feed roller 1221 along the circumferential direction, and the outer surfaces of the lower and left / right feed rollers 1221 are flat. In this way, the feed rollers 1221 in the four directions of up, down, left, and right form a U-shaped feed straightening through hole 1201; an annular protrusion is formed in the middle of the outer surface of the upper forming roller 1321 along the circumferential direction, and the outer surfaces of the lower and left / right forming rollers 1321 are flat. In this way, the forming rollers 1321 in the four directions of up, down, left, and right form a U-shaped forming through hole 1301; an annular protrusion is formed in the middle of the outer surface of the upper discharge roller 1421 along the circumferential direction, and the outer surfaces of the lower and left / right discharge rollers 1421 are flat. In this way, the discharge rollers 1421 in the four directions of up, down, left, and right form a U-shaped discharge straightening through hole 1401.

[0086] When processing a finished profile 600 in an H-shape, the outer surfaces of the upper and lower feed rollers 1221 have annular protrusions along the circumferential direction at the center, while the outer surfaces of the left and right feed rollers 1221 are flat. Thus, the feed rollers 1221 in the four directions (up, down, left, and right) enclose an H-shaped feed straightening through hole 1201. Similarly, the outer surfaces of the upper and lower forming rollers 1321 also have annular protrusions along the circumferential direction, while the outer surfaces of the left and right forming rollers 1321 are flat. Thus, the forming rollers 1321 in the four directions (up, down, left, and right) enclose an H-shaped forming through hole. The outer surfaces of the upper and lower discharge rollers 1421 have annular protrusions along the circumferential direction at the center, while the outer surfaces of the left and right discharge rollers 1421 are flat. Thus, the discharge rollers 1421 in the four directions (up, down, left, and right) enclose an H-shaped discharge straightening through hole 1401.

[0087] In a preferred embodiment of this invention, a gap of less than or equal to 10 mm is formed between any two of the feeding straightening mechanism 120, at least one set of forming mold assembly 130, and the discharging straightening mechanism 140. This not only helps dissipate heat generated by the mold, reducing thermal stress and wear, and extending the mold's service life, but also ensures that the material receives sufficient support during flow, preventing sagging or deformation under gravity.

[0088] Example 2:

[0089] Please refer to Figure 17 As shown, this embodiment provides a drawing system, including a guide device 200, a drawing die 100 of Embodiment 1, a clamping mechanism 300 and a drawing drive mechanism 400 arranged sequentially along the drawing direction;

[0090] The guide device 200 is used to convey the preformed material to the feeding straightening mechanism 120 of the drawing die 100, so that the preformed material head passes through the feeding straightening mechanism 120, at least one set of forming die assembly 130 and the discharge straightening mechanism 140 in sequence and extends outward.

[0091] The clamping mechanism 300 is used to clamp or release the preform head of the preform material;

[0092] The pulling drive mechanism 400 is used to drive the clamping mechanism 300 to move in the pulling direction.

[0093] The working process of this drawing system is as follows:

[0094] Before the drawing process begins, the feeding straightening mechanism 120, the forming die assembly 130, and the discharge straightening mechanism 140 need to be adjusted to a suitable distance. This distance allows the preform material to pass easily and smoothly through the feeding straightening mechanism 120, the forming die assembly 130, and the discharge straightening mechanism 140 in sequence.

[0095] After the spacing is adjusted appropriately, the guide device 200 conveys the preformed material to the feeding straightening mechanism 120 of the drawing die 100, and makes the cutting head pass through the feeding straightening through hole 1201, the forming through hole 1301 of the forming die assembly 130 (there may be one or more, designed according to the forming requirements) and the discharge straightening through hole 1401 in sequence.

[0096] After the cutting head has completely passed through the mold, the feeding straightening mechanism 120, the forming mold assembly 130, and the discharge straightening mechanism 140 need to be adjusted to a preset spacing. This preset spacing ensures that the central axes of the feeding straightening through hole 1201, the forming through hole 1301, and the discharge straightening through hole 1401 are on the same horizontal axis, which helps to ensure stable material flow and uniform deformation during the drawing process, thereby improving the quality and consistency of the finished product.

[0097] The clamping mechanism 300 firmly clamps the preform material head to prevent slippage or breakage. The main function of the clamping mechanism 300 is to clamp the preform material head, ensuring that the material does not slip or break during the drawing process. The jaw engagement position needs precise control, but even with slight deviations, the ejection straightening mechanism can compensate to some extent. Located after the forming die assembly 130, the ejection straightening mechanism's main function is to ensure that the material remains straight and horizontal after exiting the forming die assembly 130. Through straightening, the ejection straightening mechanism can correct any minor bends or offsets that may occur in the material during the forming process, keeping the material in a stable straight state. When the clamping mechanism 300 clamps the head, even with slight deviations in the jaw engagement position, the material remains straight and horizontal as it passes through the forming die assembly 130 due to the presence of the ejection straightening mechanism. The straightening effect of the ejection straightening mechanism can counteract the effects of jaw engagement deviations, ensuring that the material is uniformly processed and formed within the forming die assembly 130. This collaborative working mechanism helps improve the stability and consistency of drawing processes, reducing material deformation or breakage caused by jaw misalignment. Simultaneously, it also helps extend the lifespan of the die, as uniform processing and forming reduce die wear and damage.

[0098] The drawing drive mechanism 400 provides power to the clamping mechanism 300, driving it to move along the drawing direction, thereby realizing continuous drawing of materials.

[0099] Although only certain components and embodiments of this application have been illustrated and described, many modifications and alterations will be apparent to those skilled in the art without actually departing from the scope and spirit of the claims, such as variations in the size, dimensions, structure, shape and proportion of the various elements, installation arrangement, material use, color, orientation, etc.

[0100] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A drawing die, comprising a die base, wherein mounting cavities are formed on the die base extending through its front and rear sides: characterized in that, Also includes: A feeding straightening mechanism, the feeding straightening mechanism including a first template installed at the front end of the mounting cavity, the first template having a feeding straightening through hole formed thereon; At least one set of forming mold assembly, the forming mold assembly including a second template installed in the middle of the mounting cavity and four forming roller assemblies; a drawing cavity is formed inside the second template; the four forming roller assemblies are respectively installed on the upper side, lower side, left side and right side of the drawing cavity; a forming through hole is formed between the four forming roller assemblies; The discharge straightening mechanism includes a third template installed at the rear end of the mounting cavity, and the third template has a discharge straightening through hole formed thereon. The central axes of the feed straightening through hole, the forming through hole, and the discharge straightening through hole are located on the same horizontal axis.

2. The drawing die as described in claim 1, characterized in that, The drawing cavity is a cross-shaped second through hole, and the second through hole includes second through slots facing the four directions of up, down, left, and right respectively; the four forming roller assemblies are respectively installed in the four second through slots; The forming roller assembly includes a forming roller, a second connecting seat, and a second adjusting mechanism; the forming roller is rotatably mounted on the second connecting seat, the second connecting seat is slidably mounted in the drawing cavity, the second adjusting mechanism is connected to the second connecting seat, and the second adjusting mechanism drives the second connecting seat and the forming roller to slide along the length direction of the second through groove.

3. The drawing die as described in claim 1, characterized in that, The feeding straightening mechanism further includes four feeding roller assemblies; a receiving cavity is formed inside the first template; the four feeding roller assemblies are respectively installed on the upper side, lower side, left side and right side of the receiving cavity; the feeding straightening through hole is formed by the four feeding roller assemblies surrounding each other.

4. The drawing die as described in claim 3, characterized in that, The receiving cavity is a cross-shaped first through hole, and the first through hole includes first through slots facing the four directions of up, down, left, and right; the four feed roller assemblies are respectively installed in the four first through slots; The feed roller assembly includes a feed roller, a first connecting seat, and a first adjusting mechanism; the feed roller is rotatably mounted on the first connecting seat, the first connecting seat is slidably mounted in the first through groove, the first adjusting mechanism is connected to the first connecting seat, and the first adjusting mechanism drives the first connecting seat and the feed roller to slide along the length direction of the first through groove.

5. The drawing die as described in claim 1, characterized in that, The discharge straightening mechanism further includes four discharge roller assemblies; the third template has an accommodating cavity inside; the four discharge roller assemblies are respectively installed on the upper side, lower side, left side and right side of the accommodating cavity; the discharge straightening through hole is formed by the four discharge roller assemblies surrounding each other.

6. The drawing die as described in claim 5, characterized in that, The receiving cavity is a cross-shaped third through hole, and the third through hole includes third through slots facing the four directions of up, down, left, and right respectively; the four discharge roller assemblies are respectively installed in the four third through slots; The discharge roller assembly includes a discharge roller, a third connecting seat, and a third adjusting mechanism; the discharge roller is rotatably mounted on the third connecting seat, the third connecting seat is slidably mounted in the third through groove, the third adjusting mechanism is connected to the third connecting seat, and the third adjusting mechanism drives the third connecting seat and the discharge roller to slide along the length direction of the third through groove.

7. The drawing die as described in claim 1, characterized in that, The shape and size of the feed straightening through hole match the shape and size of the preformed material, the shape and size of the forming through hole match the shape and size of the finished profile, and the shape and size of the discharge straightening through hole match the shape and size of the finished profile.

8. The drawing die as described in claim 1, characterized in that, The longitudinal cross-sectional shape of the formed through hole is U-shaped or H-shaped.

9. The drawing die as described in claim 1, characterized in that, A gap of less than or equal to 10 mm is formed between any two of the feeding straightening mechanism, at least one set of forming mold components, and the discharging straightening mechanism.

10. A drawing system, characterized in that, Includes the drawing die as described in any one of claims 1-9.

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