Positioning structure of rapid elastic strip forming die

Abstract

The utility model discloses a quick positioning structure of an elastic strip forming die, which comprises a bottom plate and a lower die plate arranged on the bottom plate, two shafts are symmetrically arranged at two ends of the lower die plate, rollers and positioning pin mounting plates are sleeved on the shafts, and positioning pins are arranged on the positioning pin mounting plates, and end faces of the positioning pins are used for positioning end faces of toe ends of elastic strips. Compared with the prior art, the positioning structure has the positive effects that an elastic strip product produced by adopting the positioning structure is stable in size and good in use effect, can be widely used in the rapid production of the elastic strip, and has the following specific advantages that: 1) the positioning pin synchronously rotates with the end surface of the toe end of the product in the forming process, so that the elastic strip can be quickly formed; the end face of the toe end of the product is always attached to the positioning pin, the positioning effect is effectively achieved, and the size of the product is more stable. And 2) the positioning structure is small in occupied space, simple in structure and low in manufacturing cost, and can be applied to the forming die of the quick elastic strip.

Description

Technical Field

[0001] The utility model relates to a fast spring bar forming die positioning structure. Background Art

[0002] The Fastclip fastener system is a fastener system widely used in railways in Europe, Germany, France, Japan and other countries in recent years. The Fastclip is an important part of the system. When the Fastclip is formed, the toe end face of the process part (see Figure 1 ) to ensure the installation size of the fast spring clip, but the toe end face of the process part will move during the forming process (see Figure 2 ) and the space near the toe end face is small, and it is difficult for a general positioning structure to achieve the positioning effect. Therefore, a fast spring bar forming mold positioning structure is needed to achieve positioning. Utility Model Content

[0003] In order to overcome the above-mentioned shortcomings of the prior art, the utility model proposes a fast spring bar forming die positioning structure.

[0004] The technical solution adopted by the utility model to solve its technical problems is: a positioning structure of a rapid spring strip forming mold, comprising a base plate and a lower template arranged on the base plate, two shafts are symmetrically arranged at both ends of the lower template, rollers and a positioning pin mounting plate are sleeved on the shafts, and a positioning pin is arranged on the positioning pin mounting plate with an end face for positioning the end face of the spring strip toe end.

[0005] Furthermore, a positioning pin pressing plate is sleeved on the shaft outside the positioning pin mounting plate.

[0006] Furthermore, the locating pin mounting plate and the locating pin pressing plate are connected by bolts.

[0007] Furthermore, the other end of the positioning pin extends into the positioning pin pressing plate.

[0008] Furthermore, a tension spring is arranged on the bottom plate, and the other end of the tension spring is connected to the positioning pin pressure plate.

[0009] Furthermore, limiting bolts corresponding to the positioning pin mounting plates are arranged on both outer sides of the lower template.

[0010] Compared with the prior art, the positive effects of the utility model are:

[0011] The spring clip products produced by the positioning structure of the utility model have stable dimensions and good use effects, and can be widely used in the production of fast spring clips. The specific advantages are as follows:

[0012] (1) The positioning pin rotates synchronously with the end face of the product toe during the molding process, so that the end face of the product toe always fits with the positioning pin, which effectively plays a positioning role and makes the product size more stable.

[0013] (2) The positioning structure of the utility model occupies a small space, has a simple structure, and has a low manufacturing cost, and can be applied to the molding die of the fast spring bar. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention will be described by way of examples with reference to the accompanying drawings, in which:

[0015] Figure 1 It is a schematic diagram of the toe end face of the process part;

[0016] Figure 2 It is a schematic diagram of the position change of the toe end face of the process part before and after forming;

[0017] Figure 3 It is a schematic diagram of the positioning structure of the fast spring clip forming die;

[0018] The reference numerals in the figure include: shaft 1, roller 2, locating pin 3, locating pin mounting plate 4, locating pin pressure plate 5, limit bolt 6, tension spring 7, bottom plate 8, lower template 9. DETAILED DESCRIPTION

[0019] A fast spring bar forming die positioning structure, such as Figure 3 As shown, it includes: shaft 1, roller 2, positioning pin 3, positioning pin mounting plate 4, positioning pin pressure plate 5, limit bolt 6, tension spring 7, bottom plate 8, lower template 9, etc., wherein:

[0020] A lower template 9 is arranged on the bottom plate 8, and two shafts 1 are symmetrically arranged at both ends of the lower template. A roller 2, a locating pin mounting plate 4, and a locating pin pressing plate 5 are sleeved on the shaft 1. A locating pin 3 is arranged on the locating pin mounting plate 4, and the locating pin mounting plate 4 is connected to the locating pin pressing plate 5 by bolts. In order to ensure the stability of the locating pin, one end of the locating pin extends into the locating pin pressing plate 5, so that the locating pin can rotate synchronously with the end face of the toe end of the spring bar during the forming process, and the other end of the locating pin always keeps in contact with the end face of the toe end of the spring bar. One end of the tension spring 7 is connected to the locating pin pressing plate 5, and the other end is connected to the bottom plate 8. Limit bolts 6 corresponding to the locating pin mounting plate 4 are arranged on both outer sides of the lower template 9, which are used to adjust the initial position of the locating pin 3 so as to locate the toe end face of the spring bar through the end face of the locating pin 3.

[0021] During operation, first adjust the initial position of the positioning pin 3 by the limit bolt 6 to position the end face of the toe end of the spring bar; after the end face of the positioning pin contacts the end face of the toe end of the spring bar, tighten the bolt on the positioning pin pressure plate 5 to tighten the positioning pin; after the upper die presses down, the end face of the toe end of the spring bar begins to rotate downward around the roller 2, and at the same time, the positioning pin 3 rotates around the axis 1 under the pressure of the upper die, so that the positioning pin and the end face of the toe end of the spring bar keep rotating synchronously, so that the positioning pin 3 is always in contact with the end face of the toe end of the spring bar. After molding, take out the spring bar product, and the positioning pin 3 is reset under the action of the tension spring 7.

Claims

1. A fast spring bar forming die positioning structure, characterized in that: It includes a bottom plate and a lower template arranged on the bottom plate. Two shafts are symmetrically arranged at both ends of the lower template. Rollers and positioning pin mounting plates are sleeved on the shafts. The positioning pin mounting plate is provided with a positioning pin whose end face is used to position the end face of the toe end of the spring bar.

2. A fast spring clip forming die positioning structure according to claim 1, characterized in that: A positioning pin pressure plate is sleeved on the shaft outside the positioning pin mounting plate.

3. A fast spring clip forming die positioning structure according to claim 2, characterized in that: The locating pin mounting plate and the locating pin pressing plate are connected by bolts.

4. A fast spring clip forming die positioning structure according to claim 2, characterized in that: The other end of the positioning pin extends into the positioning pin pressing plate.

5. The fast spring clip forming die positioning structure according to claim 2, characterized in that: A tension spring is arranged on the bottom plate, and the other end of the tension spring is connected to the positioning pin pressure plate.

6. A fast spring clip forming die positioning structure according to claim 1, characterized in that: Limit bolts corresponding to the positioning pin mounting plates are arranged on both outer sides of the lower template.

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