Die with bridge bottom extension piece

Abstract

The utility model discloses a die with a bridge bottom extension piece, which relates to the technical field of dies, and comprises an upper die and a lower die, one side of the lower die close to the upper die is provided with a feed-in groove, a steel belt is placed in the feed-in groove, the surface of the lower die is fixedly connected with two second fixing plates, and the two second fixing plates are fixedly connected with the upper die and the lower die. A second pressing roller is rotationally connected between the two second fixing plates, two first fixing plates are fixedly connected to the surface of the lower die, a first pressing roller is rotationally connected between the two first fixing plates, and the surfaces of the first pressing roller and the second pressing roller make contact with the surface of the steel belt. According to the die with the bridge bottom extension piece, the upper side and the lower side of a steel belt are limited, so that the situation that the steel belt jumps in the feeding process due to the fact that the upper die and the lower die punch the steel belt in the conveying process of the steel belt is avoided, the situation that the steel belt is inclined when the steel belt is machined is avoided, and the production efficiency is improved. And therefore, the workpiece forming quality of the device is guaranteed, the using effect of the device is improved, and the device is worthy of popularization.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, and particularly relates to a mold with a bottom bridge stretching part. Background Art

[0002] A cable tray is a rigid structure system composed of straight sections, elbows, tees, crosses, etc. of trough type, tray type or ladder type, as well as bracket arms (arm type brackets), hangers, etc., which closely support cables. The wire and cable tray connecting piece is a workpiece that connects trough type and ladder type trays and plays a role in connecting and strengthening the trays.

[0003] Patent No.: CN204638888U discloses a stamping device for bridge connecting pieces. The stamping device for bridge connecting pieces designs a stamping die that integrates punching, cutting, and bending, enabling multiple processing procedures to be completed in one stamping, and different sizes of bridge connecting pieces with various size requirements can be processed on one machine by adjusting the quantity and size of the dies.

[0004] However, during the implementation of this solution, since the connecting pieces are mainly formed by stamping a steel strip in sequence, and the steel strip is fed for stamping through a decoiler and other equipment in cooperation. When the decoiler feeds the die, the steel strip between the decoiler and the die is usually in a loose state. Therefore, when the die stamps the steel strip, due to the loose steel strip between the decoiler and the die, the steel strip is prone to jumping during the feeding process, which causes the steel strip in the die to skew, thereby reducing the forming quality of the workpiece by the die. Thus, a mold with a bottom bridge stretching part is proposed. Content of the Utility Model

[0005] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art, and provide a mold with a bottom bridge stretching part, which can solve the problems in the background art.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A mold with a bottom bridge stretching part includes an upper die and a lower die. A feeding groove is opened on one side of the lower die close to the upper die, and a steel strip is placed inside the feeding groove. Two second fixing plates are fixedly connected to the surface of the lower die, and a second pressing roller is rotatably connected between the two second fixing plates. Two first fixing plates are fixedly connected to the surface of the lower die, and a first pressing roller is rotatably connected between the two first fixing plates. The surfaces of the first pressing roller and the second pressing roller are both in contact with the surface of the steel strip.

[0007] Preferably, the lengths of the two first fixing plates are eight to ten centimeters, and the lengths of the two second fixing plates are four to five centimeters.

[0008] Preferably, two limiting discs are rotatably connected to the surfaces of the second pressing roller and the first pressing roller.

[0009] Preferably, two mounting plates are fixedly connected to the surface of the lower die. Adjusting bolts penetrating the surfaces of the two mounting plates are threadedly connected inside the two mounting plates. The opposite ends of the two adjusting bolts are rotatably connected to connecting discs. Two sliding rods are fixedly connected to the surfaces of the two connecting discs. Ring grooves are formed on the surfaces of the four limiting discs. The surfaces of the four sliding rods slide with the inner walls of the four ring grooves respectively.

[0010] Preferably, connecting balls are fixedly connected to the ends of the sliding rods located inside the limiting discs. The surfaces of the connecting balls also slide with the inner walls of the ring grooves.

[0011] Preferably, the limiting disc includes a first limiting ring and a second limiting ring. The surface of the second limiting ring is in contact with the surface of the steel strip. A connecting bolt is rotatably connected inside the first limiting ring. The surface of the connecting bolt is threadedly connected to the inside of the second limiting ring.

[0012] Preferably, the second limiting ring includes two semi-circular splicing blocks. One end of the splicing block is fixedly connected with a connecting plate. A connecting groove is formed at one end of the splicing block. The connecting plate is matched with the connecting groove.

[0013] Preferably, threaded grooves are formed on the surfaces of the splicing blocks. The threaded grooves penetrate the connecting grooves. Threaded grooves are also formed on the surfaces of the connecting plates.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] (1). This die for the belt bridge bottom stretching part restricts the upper and lower sides of the steel strip, so that during the conveying process of the steel strip, the steel strip will not jump during the feeding process due to the stamping of the upper die and the lower die on the steel strip, thus avoiding the situation of the steel strip being skewed during the processing of the steel strip, and further ensuring the forming quality of the workpiece by the device, improving the use effect of the device, and being worthy of promotion.

[0016] (2). This die for the belt bridge bottom stretching part, through the setting of the connecting balls, reduces the friction force when the sliding rods slide in the ring grooves, so that the limiting disc can rotate smoothly under the drive of the steel strip, thereby reducing the friction of the steel strip on the limiting disc, improving the service life of the limiting disc, and improving the use effect of the device.

[0017] (3). This die for the belt bridge bottom stretching part divides the limiting disc into a first limiting ring and a second limiting ring. Then, when the limiting disc is worn by the steel strip and needs to be replaced, only the second limiting ring needs to be replaced, thereby reducing the replacement of other components and further reducing the waste of resources. Description of the Drawings

[0018] The following further describes the present utility model in conjunction with the drawings and embodiments:

[0019] Figure 1 is a schematic structural diagram of the present utility model;

[0020] Figure 2 for the present utility model Figure 1 is an enlarged schematic diagram at position A in;

[0021] Figure 3 is a schematic structural diagram of the limiting disc of the present utility model;

[0022] Figure 4 is a schematic structural diagram of the second limiting ring of the present utility model.

[0023] Reference numerals: 1, upper die; 2, lower die; 3, feeding groove; 4, steel strip; 5, first fixing plate; 6, first pressing roller; 7, second fixing plate; 8, second pressing roller; 9, limiting disc; 910, first limiting ring; 920, second limiting ring; 921, splicing block; 922, connecting plate; 923, connecting groove; 924, threaded groove; 930, connecting bolt; 10, adjusting bolt; 11, mounting plate; 12, connecting disc; 13, sliding rod; 14, annular groove; 15, connecting ball. Specific embodiments

[0024] This part will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the drawings. The function of the drawings is to supplement the description in the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but it cannot be construed as a limitation on the protection scope of the present utility model.

[0025] Please refer to Figures 1-4, the present utility model provides a technical solution: a die with a bottom bridge extension part, including an upper die 1 and a lower die 2. A feeding groove 3 is opened on one side of the lower die 2 close to the upper die 1. A steel strip 4 is placed inside the feeding groove 3 to provide a feeding space for the steel strip 4. Two second fixing plates 7 are fixedly connected to the surface of the lower die 2. A second pressing roller 8 is rotatably connected between the two second fixing plates 7. Two first fixing plates 5 are fixedly connected to the surface of the lower die 2. A first pressing roller 6 is rotatably connected between the two first fixing plates 5. The surfaces of the first pressing roller 6 and the second pressing roller 8 are both in contact with the surface of the steel strip 4. The length of the two first fixing plates 5 is eight to ten centimeters, and the length of the two second fixing plates 7 is four to five centimeters, so that the first pressing roller 6 and the second pressing roller 8 are not in the same vertical plane, so that the first pressing roller 6 and the second pressing roller 8 can bend the steel strip 4 to a certain extent, so as to limit the upper and lower sides of the steel strip 4, so that during the conveying process of the steel strip 4, the steel strip 4 will not jump due to the stamping of the upper die 1 and the lower die 2 on the steel strip 4, thus avoiding the situation that the steel strip 4 is skewed during the processing of the steel strip 4, thereby ensuring the forming quality of the workpiece by the device and improving the use effect of the device, which is worthy of promotion.

[0026] Furthermore, two limiting disks 9 are rotatably connected to the surfaces of the second pressing roller 8 and the first pressing roller 6. Through the arrangement of the limiting disks 9, the upper and lower sides of the steel strip 4 can be clamped, thus reducing the situation that the steel strip 4 jumps during the feeding process again, and further improving the stability of the device when stamping the steel strip 4 and the use effect of the device.

[0027] Two mounting plates 11 are fixedly connected to the surface of the lower die 2. Adjusting bolts 10 penetrating the surfaces of the mounting plates 11 are threadedly connected inside the two mounting plates 11. The opposite ends of the two adjusting bolts 10 are rotatably connected to connecting disks 12. Two sliding rods 13 are fixedly connected to the surfaces of the two connecting disks 12. Ring grooves 14 are opened on the surfaces of the four limiting disks 9. The surfaces of the four sliding rods 13 slide with the inner walls of the four ring grooves 14 respectively, so that the limiting disks 9 on the first pressing roller 6 and the second pressing roller 8 can be connected together. At the same time, the staff can rotate the adjusting bolts 10 to change the height of the connecting disks 12, and then change the height of the limiting disks 9, so as to adjust the distance between the four limiting disks 9, so that the device can clamp and limit steel strips 4 of different widths, and further improve the applicable range of the device and the practicability of the device.

[0028] Further, at one end of the sliding rod 13 located inside the limiting disc 9, a connecting ball 15 is fixedly connected. The surface of the connecting ball 15 also slides on the inner wall of the annular groove 14. Thus, through the arrangement of the connecting ball 15, the friction force when the sliding rod 13 slides in the annular groove 14 is reduced. As a result, the limiting disc 9 can rotate smoothly driven by the steel belt 4, thereby reducing the friction between the steel belt 4 and the limiting disc 9, improving the service life of the limiting disc 9, and enhancing the use effect of the device.

[0029] The limiting disc 9 includes a first limiting ring 910 and a second limiting ring 920. The surface of the second limiting ring 920 is in contact with the surface of the steel belt 4. Inside the first limiting ring 910, a connecting bolt 930 is rotatably connected. The surface of the connecting bolt 930 is threadedly connected to the inside of the second limiting ring 920. Thus, through the arrangement of the connecting bolt 930, the first limiting ring 910 and the second limiting ring 920 can be connected together. At the same time, the limiting disc 9 is divided into the first limiting ring 910 and the second limiting ring 920. Then, when the limiting disc 9 is worn by the steel belt 4 and needs to be replaced, only the second limiting ring 920 needs to be replaced, thereby reducing the replacement of other components and further reducing the waste of resources.

[0030] Further, the second limiting ring 920 includes two semi-circular splicing blocks 921. One end of the splicing block 921 is fixedly connected with a connecting plate 922. One end of the splicing block 921 is provided with a connecting groove 923, and the connecting plate 922 is matched with the connecting groove 923. Then, the staff can insert the connecting plates 922 on the two splicing blocks 921 into the connecting groove 923 respectively to complete the assembly of the second limiting ring 920. Thus, it is convenient for the subsequent staff to remove and install the worn second limiting ring 920, thereby improving the convenience during the use of the device and being worthy of promotion.

[0031] The surface of the splicing block 921 is provided with a threaded groove 924, and the threaded groove 924 penetrates through the connecting groove 923. The surface of the connecting plate 922 is also provided with a threaded groove 924 to provide an insertion space for the connecting bolt 930.

[0032] Specifically, during use, the steel belt 4 is passed under the first pressure roller 6 and above the second pressure roller 8 to limit the front and rear sides of the steel belt 4. Then, the steel belt 4 is inserted into the feeding groove 3. Then, by rotating the two adjusting bolts 10, four limiting discs 9 are driven to limit the upper and lower sides of the steel belt 4, thereby restricting the moving space of the steel belt 4. When the device is stamping the steel belt 4, during the feeding process of the steel belt 4, the surface close to the upper die 1 and the lower die 2 cannot jump, thereby avoiding the situation that the steel belt 4 is skewed in the upper die 1 and the lower die 2, and thus ensuring the forming quality of the workpiece by the device.

[0033] Working principle: Pass the steel strip 4 under the first pressure roller 6 and above the second pressure roller 8 to restrict the front and rear sides of the steel strip 4. Then insert the steel strip 4 into the feeding groove 3. After that, by rotating two adjusting bolts 10, drive four limiting discs 9 to restrict the upper and lower sides of the steel strip 4, thereby restricting the moving space of the steel strip 4.

[0034] The embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art in the said technical field, various changes can also be made without departing from the gist of the present invention.

Claims

1. A mold with a bridge bottom extension part, comprising an upper mold (1) and a lower mold (2), characterized in that: A feeding groove (3) is provided on one side of the lower mold (2) close to the upper mold (1), a steel strip (4) is placed inside the feeding groove (3), two second fixed plates (7) are fixedly connected to the surface of the lower mold (2), a second pressing roller (8) is rotatably connected between the two second fixed plates (7), two first fixed plates (5) are fixedly connected to the surface of the lower mold (2), a first pressing roller (6) is rotatably connected between the two first fixed plates (5), and the surfaces of the first pressing roller (6) and the second pressing roller (8) are both in contact with the surface of the steel strip (4).

2. A mold with a bridge bottom extension according to claim 1, characterized in that: The length of the two first fixing plates (5) is eight to ten centimeters, and the length of the two second fixing plates (7) is four to five centimeters.

3. A mold with a bridge bottom extension according to claim 1, characterized in that: The surfaces of the second pressing roller (8) and the first pressing roller (6) are both rotatably connected to two limiting disks (9).

4. A mold with a bridge bottom extension according to claim 3, characterized in that: The surface of the lower mold (2) is fixedly connected to two mounting plates (11), the interiors of the two mounting plates (11) are threadedly connected to adjusting bolts (10) that penetrate the surfaces of the mounting plates (11), the opposite ends of the two adjusting bolts (10) are rotatably connected to connecting plates (12), the surfaces of the two connecting plates (12) are fixedly connected to two sliding rods (13), the surfaces of the four limiting plates (9) are provided with annular grooves (14), and the surfaces of the four sliding rods (13) slide relative to the inner walls of the four annular grooves (14) respectively.

5. A mold with a bridge bottom extension according to claim 4, characterized in that: One end of the slide rod (13) located inside the limiting disk (9) is fixedly connected to a connecting ball (15), and the surface of the connecting ball (15) also slides relative to the inner wall of the annular groove (14).

6. A mold with a bridge bottom extension according to claim 3, characterized in that: The limiting disk (9) comprises a first limiting ring (910) and a second limiting ring (920), the surface of the second limiting ring (920) contacts the surface of the steel belt (4), the interior of the first limiting ring (910) is rotatably connected with a connecting bolt (930), and the surface of the connecting bolt (930) is threadedly connected to the interior of the second limiting ring (920).

7. A mold with a bridge bottom extension according to claim 6, characterized in that: The second limiting ring (920) comprises two semicircular splicing blocks (921), one end of the splicing block (921) is fixedly connected to a connecting plate (922), one end of the splicing block (921) is provided with a connecting groove (923), and the connecting plate (922) matches the connecting groove (923).

8. The mold with a bridge bottom extension according to claim 7, characterized in that: The surface of the splicing block (921) is provided with a thread groove (924), and the thread groove (924) penetrates the connecting groove (923). The surface of the connecting plate (922) is also provided with a thread groove (924).

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