Variable cross-section profile drawing die structure

Abstract

The utility model relates to the technical field of drawing dies, in particular to a variable cross-section profile drawing die structure which comprises a first shaft rod and a second shaft rod, a first roller is fixed to the middle of the outer side wall of the first shaft rod in a sleeved mode, and a second roller is fixed to the middle of the outer side wall of the second shaft rod in a sleeved mode. And a first extrusion groove is formed in the middle position of the outer side wall of the first roller. According to the sectional material compression device, the first roller is fixedly connected to the middle position of the outer side wall of the first shaft rod in a sleeved mode, and the two second extrusion grooves are used for compressing a sectional material with a constant section, so that the sectional material with the constant section is changed into a sectional material with a variable section, use is more convenient and faster, and a first synchronous gear is meshed with a second synchronous gear; and therefore, the first shaft rod and the second shaft rod can rotate synchronously, the first roller and the second roller can rotate synchronously, and the problem of product dislocation caused by inconsistent rotating speeds of the first roller and the second roller is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of drawing dies, in particular to a drawing die structure for variable-section profiles. Background Art

[0002] Roller die drawing is a metal processing technology. Due to the advantages of roller die drawing, such as low deformation resistance, high production efficiency, uniform deformation, and large pass elongation coefficient, roller die drawing is often used in industrial production to produce fixed-section profiles or pipes of metals and alloys such as stainless steel, aluminum, titanium, and copper. This technology involves the use of a series of roller dies to continuously shape and stretch the metal profile to achieve the desired shape and size. However, when the two rollers on the existing roller die drawing equipment are working, the two rollers are prone to inconsistent rotation speeds, and the inconsistent rotation speeds of the two rollers are prone to product misalignment, affecting product quality. Utility Model Content

[0003] The utility model aims to provide a drawing die structure for a variable-section profile to solve the problems raised in the above-mentioned background technology.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A variable-section profile drawing die structure comprises an axle rod 1 and an axle rod 2, wherein a roller 1 is sleeved and fixed at the middle position of the outer wall of the axle rod 1, and a roller 2 is sleeved and fixed at the middle position of the outer wall of the axle rod 2, an extrusion groove 1 is provided at the middle position of the outer wall of the roller 1, and an extrusion groove 2 is provided at the middle position of the outer wall of the roller 2, a synchronous gear 1 is rotatably sleeved on the outer walls at both ends of the axle rod 1, and a synchronous gear 2 is rotatably connected to the outer walls at both ends of the axle rod 2, and the synchronous gear 2 is meshed with the synchronous gear 1 at the corresponding position.

[0006] Furthermore, the outer diameter of the shaft rod 1 is the same as the outer diameter of the shaft rod 2, the outer diameter of the roller wheel 1 is the same as the outer diameter of the roller wheel 2, and the inner contour of the extrusion groove 1 is the same as the inner contour of the extrusion groove 2.

[0007] Furthermore, two circular holes 1 are symmetrically provided on the roller 1, and two circular holes 2 are symmetrically provided on the roller 2, circular holes 3 are provided at positions of the synchronous gear 1 corresponding to the two circular holes 1, and circular holes 4 are provided at positions of the synchronous gear 2 corresponding to the two circular holes 2, positioning pins are sleeved and fixed inside the two circular holes 1 and the two circular holes 2, and the two ends of the two positioning pins are slidably plugged into the circular holes 3 and 4 at the corresponding positions respectively.

[0008] Preferably, the inner diameter of the circular hole three is the same as the inner diameter of the circular hole four, and the inner diameter of the circular hole three is the same as the outer diameter of the positioning pin.

[0009] Furthermore, two threaded holes 1 are symmetrically provided on the roller 1, and threaded holes 3 are provided at positions of the synchronous gear 1 corresponding to the two threaded holes 1, and fixing bolt 1 is screwed and connected at positions of the synchronous gear 1 corresponding to the two threaded holes 3, and one end of the fixing bolt 1 is screwed and connected to the threaded hole 1 at the corresponding position.

[0010] Preferably, a placement groove 1 is provided at positions corresponding to the two threaded holes 3 on the opposite sides of the two synchronous gears 1, and the inner diameter of the placement groove 1 is larger than the outer diameter of the other end of the fixing bolt 1.

[0011] Furthermore, two threaded holes 2 are symmetrically provided on the roller 2, and threaded holes 4 are provided at positions of the synchronous gear 2 corresponding to the two threaded holes 2. Positions of the synchronous gear 2 corresponding to the two threaded holes 4 are screwed together with fixing bolts 2, and one end of the fixing bolts 2 is screwed together with the threaded holes 2 at the corresponding positions.

[0012] Preferably, the internal contour of the threaded hole two is the same as the internal contour of the threaded hole one, and the internal contour of the threaded hole three is the same as the internal contour of the threaded hole four.

[0013] Preferably, a placement groove 2 is provided at positions corresponding to the two threaded holes 4 on the opposite sides of the two synchronous gears 2, and the inner diameter of the placement groove 2 is larger than the outer diameter of the other end of the fixing bolt 2.

[0014] Preferably, the inner contour of the placement groove 2 is the same as the inner contour of the placement groove 1, and the outer contour of the fixing bolt 2 is the same as the outer contour of the fixing bolt 1.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. A roller wheel 1 is fixedly sleeved on the middle position of the outer wall of a shaft rod 1, and two extrusion grooves 2 are used to compress a profile with a constant cross-section (such as a pipe, etc.), so that the profile with a constant cross-section is changed into a profile with a variable cross-section, which is more convenient to use. The synchronous gear 1 is meshed with the synchronous gear 2, so that the shaft rod 1 and the shaft rod 2 can rotate synchronously, and then the roller wheel 1 and the roller wheel 2 can rotate synchronously, avoiding the product misalignment problem caused by the inconsistent rotation speed of the roller wheel 1 and the roller wheel 2. When the variable-section profile drawing die structure is damaged, the fixing bolt 1 is unscrewed to facilitate the removal of the two synchronous gears 1 and the two synchronous gears 2, so as to facilitate the replacement of the damaged parts on the variable-section profile drawing die structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the positional relationship between the roller wheel 1 and the synchronous gear 1 in the utility model;

[0019] Figure 3 It is a schematic diagram of the position relationship between the roller wheel 1 and the fixing bolt 1 in the utility model;

[0020] Figure 4 It is a schematic diagram of the positional relationship between roller one and roller two in the utility model;

[0021] Figure 5 It is a schematic diagram of the positional relationship between the synchronous gear 1 and the synchronous gear 2 in the utility model.

[0022] In the figure: 100, shaft rod one; 110, roller one; 111, extrusion groove one; 112, threaded hole one; 113, round hole one; 120, shaft rod two; 130, roller two; 131, extrusion groove two; 132, threaded hole two; 133, round hole two; 140, synchronous gear one; 141, threaded hole three; 142, placement groove one; 143, round hole three; 150, synchronous gear two; 151, threaded hole four; 152, placement groove two; 153, round hole four; 160, fixing bolt one; 170, fixing bolt two; 180, positioning pin. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-5As shown, a variable cross-section profile drawing die structure includes a shaft rod 100 and a shaft rod 120, a roller wheel 110 is sleeved and fixed at the middle position of the outer wall of the shaft rod 100, and a roller wheel 130 is sleeved and fixed at the middle position of the outer wall of the shaft rod 120, an extrusion groove 111 is opened at the middle position of the outer wall of the roller wheel 110, and an extrusion groove 2 131 is opened at the middle position of the outer wall of the roller wheel 130, the outer walls at both ends of the shaft rod 100 are rotatably sleeved with a synchronous gear 140, and the outer walls at both ends of the shaft rod 120 are rotatably connected with a synchronous gear 2 150, and the synchronous gear 2 150 is meshed with the synchronous gear 140 at the corresponding position. When in use, by connecting the shaft rod 100 and the shaft rod The second extrusion groove 131 is installed on the mold frame, and one end of the constant cross-section profile is passed through the two extrusion grooves 131, and the constant cross-section profile is pulled by an external traction device to move the constant cross-section profile, and then the two extrusion grooves 131 are used to compress the constant cross-section profile, so that the constant cross-section profile is transformed into a variable cross-section profile, which is more convenient to use. The synchronous gear 140 is meshed with the synchronous gear 2 150 at the corresponding position, so that the shaft rod 100 and the shaft rod 2 120 can rotate synchronously, and then the roller 1 110 and the roller 2 130 can rotate synchronously, avoiding the product misalignment problem caused by the inconsistent rotation speed of the roller 110 and the roller 2 130.

[0025] The outer diameter of the shaft rod 100 is the same as the outer diameter of the shaft rod 2 120, and the outer diameter of the roller wheel 110 is the same as the outer diameter of the roller wheel 2 130. The inner contour of the extrusion groove 111 is the same as the inner contour of the extrusion groove 2 131. The roller wheel 110 is symmetrically provided with two circular holes 113, and the roller wheel 2 130 is symmetrically provided with two circular holes 2 133. The synchronous gear 140 is provided with circular holes 3 143 at positions corresponding to the two circular holes 113, and the synchronous gear 2 150 is provided with circular holes 4 153 at positions corresponding to the two circular holes 2 133. The two circular holes 113 are symmetrically provided with two circular holes 133. The interiors of the two circular holes 133 are both sleeved and fixed with positioning pins 180, and the two ends of the two positioning pins 180 are respectively slidably plugged into the circular holes 143 and the four circular holes 153 at corresponding positions, the inner diameter of the circular hole 143 is the same as the inner diameter of the circular hole 153, and the inner diameter of the circular hole 143 is the same as the outer diameter of the positioning pin 180. The positioning pin 180, the circular hole 143 and the four circular hole 153 are used together to facilitate the limiting of the synchronous gear 140 and the synchronous gear 2 150, and to facilitate the quick installation of the synchronous gear 140 and the synchronous gear 2 150.

[0026] Two threaded holes 112 are symmetrically provided on the roller 110, and threaded holes 3 141 are provided at positions of the synchronous gear 140 corresponding to the two threaded holes 112, and fixing bolts 160 are screwed together at positions of the synchronous gear 140 corresponding to the two threaded holes 141, and one end of the fixing bolt 160 is screwed together with the threaded hole 112 at the corresponding position, and a placement groove 142 is provided at positions of the two threaded holes 141 on the opposite sides of the two synchronous gears 140, and the inner diameter of the placement groove 142 is larger than the outer diameter of the other end of the fixing bolt 160, and two threaded holes 132 are symmetrically provided on the roller 2 130, and threaded holes 4 151 are provided at positions of the synchronous gear 2 150 corresponding to the two threaded holes 132, and fixing bolts 2 170 are screwed together at positions of the two threaded holes 151 on the synchronous gear 2 150, and one end of the fixing bolt 2 170 It is screwed together with the threaded hole 132 at the corresponding position, the internal contour of the threaded hole 132 is the same as the internal contour of the threaded hole 112, and the internal contour of the threaded hole 3 141 is the same as the internal contour of the threaded hole 4 151, and a placement groove 152 is opened at the position of the two threaded holes 151 on the opposite side of the two synchronous gears 150, and the inner diameter of the placement groove 152 is larger than the outer diameter of the other end of the fixing bolt 170, the internal contour of the placement groove 152 is the same as the internal contour of the placement groove 142, and the external contour of the fixing bolt 170 is the same as the external contour of the fixing bolt 160, the fixing bolt 160 is used to facilitate the fixing of the synchronous gear 140 on the roller 110, and the fixing bolt 170 is used to facilitate the fixing of the synchronous gear 150 on the roller 130, thereby avoiding the movement of the synchronous gear 140 and the synchronous gear 150 during use.

[0027] Working principle: When in use, the shaft rod 100 and the shaft rod 2 120 are installed on the mold frame, and one end of the constant cross-section profile is passed through the two extrusion grooves 2 131, and the constant cross-section profile is pulled by an external traction device to move the constant cross-section profile, and then the two extrusion grooves 2 131 are used to compress the constant cross-section profile, so that the constant cross-section profile is converted into a variable cross-section profile, and the synchronous gear 140 is meshed with the synchronous gear 2 150 at the corresponding position, so that the shaft rod 100 and the shaft rod 2 120 can rotate synchronously, and then the roller 110 and the roller 2 130 can rotate synchronously, and when the variable cross-section profile drawing die structure is damaged, the fixing bolt 160 is unscrewed, so that the two synchronous gears 140 and the two synchronous gears 2 150 can be removed, and then the damaged parts on the variable cross-section profile drawing die structure can be replaced.

[0028] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0029] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A variable cross-section profile drawing die structure, comprising a shaft rod 1 (100) and a shaft rod 2 (120), characterized in that: A roller 1 (110) is sleeved and fixed at the middle position of the outer wall of the shaft rod 1 (100), and a roller 2 (130) is sleeved and fixed at the middle position of the outer wall of the shaft rod 2 (120). An extrusion groove 1 (111) is provided at the middle position of the outer wall of the roller 1 (110), and an extrusion groove 2 (131) is provided at the middle position of the outer wall of the roller 2 (130). The outer walls at both ends of the shaft rod 1 (100) are rotatably sleeved with a synchronous gear 1 (140), and the outer walls at both ends of the shaft rod 2 (120) are rotatably connected with a synchronous gear 2 (150), and the synchronous gear 2 (150) is meshed with the synchronous gear 1 (140) at the corresponding position.

2. A variable cross-section profile drawing die structure according to claim 1, characterized in that: The outer diameter of the shaft rod 1 (100) is the same as the outer diameter of the shaft rod 2 (120), and the outer diameter of the roller wheel 1 (110) is the same as the outer diameter of the roller wheel 2 (130), and the inner contour of the extrusion groove 1 (111) is the same as the inner contour of the extrusion groove 2 (131).

3. The variable cross-section profile drawing die structure according to claim 1, characterized in that: The roller wheel one (110) is symmetrically provided with two circular holes one (113), and the roller wheel two (130) is symmetrically provided with two circular holes two (133), the synchronous gear one (140) is provided with circular holes three (143) at positions corresponding to the two circular holes one (113), and the synchronous gear two (150) is provided with circular holes four (153) at positions corresponding to the two circular holes two (133), and the insides of the two circular holes one (113) and the two circular holes two (133) are both sleeved and fixed with positioning pins (180), and the two ends of the two positioning pins (180) are respectively slidably plugged into the circular holes three (143) and the circular holes four (153) at the corresponding positions.

4. A variable cross-section profile drawing die structure according to claim 3, characterized in that: The inner diameter of the circular hole three (143) is the same as the inner diameter of the circular hole four (153), and the inner diameter of the circular hole three (143) is the same as the outer diameter of the positioning pin (180).

5. The variable cross-section profile drawing die structure according to claim 1, characterized in that: The roller wheel 1 (110) is symmetrically provided with two threaded holes 1 (112), and the synchronous gear 1 (140) is provided with threaded holes 3 (141) at positions corresponding to the two threaded holes 1 (112), and the synchronous gear 1 (140) is screwed and connected with fixing bolts 1 (160) at positions corresponding to the two threaded holes 3 (141), and one end of the fixing bolts 1 (160) is screwed and connected with the threaded holes 1 (112) at the corresponding positions.

6. A variable cross-section profile drawing die structure according to claim 5, characterized in that: A placement groove (142) is provided at the position corresponding to the two threaded holes (141) on the opposite side of the two synchronous gears (140), and the inner diameter of the placement groove (142) is larger than the outer diameter of the other end of the fixing bolt (160).

7. The variable cross-section profile drawing die structure according to claim 1, characterized in that: The roller wheel 2 (130) is symmetrically provided with two threaded holes 2 (132), and the synchronous gear 2 (150) is provided with threaded holes 4 (151) at positions corresponding to the two threaded holes 2 (132), and the synchronous gear 2 (150) is screwed and connected with fixing bolts 2 (170) at positions corresponding to the two threaded holes 4 (151), and one end of the fixing bolts 2 (170) is screwed and connected with the threaded holes 2 (132) at the corresponding positions.

8. A variable cross-section profile drawing die structure according to claim 7, characterized in that: The internal profile of the second threaded hole (132) is the same as the internal profile of the first threaded hole (112), and the internal profile of the third threaded hole (141) is the same as the internal profile of the fourth threaded hole (151).

9. The variable cross-section profile drawing die structure according to claim 7, characterized in that: A second placement groove (152) is provided at the position corresponding to the two threaded holes (151) on the opposite side of the two synchronous gears (150), and the inner diameter of the second placement groove (152) is larger than the outer diameter of the other end of the second fixing bolt (170).

10. A variable cross-section profile drawing die structure according to claim 9, characterized in that: The inner contour of the second placement groove (152) is the same as the inner contour of the first placement groove (142), and the outer contour of the second fixing bolt (170) is the same as the outer contour of the first fixing bolt (160).

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