Compact through-hole mold structure
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGCHUN JINJIANG AUTO PARTS
- Filing Date
- 2025-05-29
- Publication Date
- 2026-06-30
Smart Images

Figure CN224423914U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipe fitting processing technology, and in particular to a compact through-hole mold structure. Background Technology
[0002] The compact mandrel die structure is mainly suitable for pipe bending production lines. Existing mandrel dies frequently suffer from defects such as material jamming, wrinkling, and slippage due to excessive bending assistance during the pipe bending process, resulting in a large number of scraps and die damage.
[0003] Based on the above-mentioned technical problems, those skilled in the art urgently need to develop a compact through-hole mold structure that is simple in structure and can effectively avoid problems such as material jamming, wrinkling and slippage during processing. Utility Model Content
[0004] The purpose of this invention is to provide a compact through-hole mold structure that is simple in structure and can effectively avoid problems such as material jamming, wrinkling, and slippage during processing.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] The present invention relates to a compact through-hole mold structure, the mold structure comprising:
[0007] Support section; and
[0008] An inner shaft core located in the support section is used to fix the pipe fitting to be processed;
[0009] A connecting part attached to one end of the inner shaft core;
[0010] The mold structure also includes:
[0011] A guide portion connected to the end of the inner shaft away from the adapter portion is used to provide guidance for the fitting.
[0012] Furthermore, the support portion includes a mandrel, and the inner shaft is disposed inside the mandrel; and
[0013] An outer ring is provided on one side of the mandrel, and the outer ring is sleeved on the outside of the guide portion.
[0014] Furthermore, the adapter includes a mandrel connecting rod passing through and connected to the inner shaft core; and
[0015] A mandrel adapter rod connected to the end of the mandrel connecting rod away from the inner shaft core.
[0016] Furthermore, the guide portion includes a universal joint that mates with the inner shaft core, with one end of the universal joint away from the inner shaft core forming a joint end.
[0017] The compact through-hole mold structure provided by this utility model has the following beneficial effects:
[0018] The compact through-hole mold structure of this utility model is equipped with a support part and a guide part, which play a supporting role in the bending process, prevent the product from becoming out of round or wrinkled, ensure product quality requirements, and effectively avoid problems such as material jamming, wrinkling and slippage during processing. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.
[0020] Figure 1 A schematic diagram of a compact through-hole mold structure provided for an embodiment of this utility model.
[0021] Explanation of reference numerals in the attached figures:
[0022] 1. Support section; 2. Inner shaft core; 3. Adapter section; 4. Guide section;
[0023] 101. Core rod; 102. Outer ring;
[0024] 301. Mandrel connecting rod; 302. Mandrel adapter rod;
[0025] 401. Universal joint; 402. Joint end. Detailed Implementation
[0026] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.
[0027] See Figure 1 As shown;
[0028] The present invention relates to a compact through-hole mold structure, the mold structure comprising:
[0029] Support part 1; and
[0030] The inner shaft core 2, located in the support part 1, is used to fix the pipe to be processed;
[0031] The adapter 3 is connected to one end of the inner shaft core 2;
[0032] The mold structure also includes:
[0033] A guide portion 4 is connected to the end of the inner shaft core 2 away from the adapter portion 3, and the guide portion 4 is used to provide guidance for the pipe fitting.
[0034] As a further description of this embodiment, the support portion 1 includes a core rod 101, and the inner shaft core 2 is disposed inside the core rod 101; and
[0035] An outer ring 102 is provided on one side of the mandrel 101, and the outer ring 102 is sleeved on the outside of the guide portion 4. In use, the tube is fixed by the inner shaft 2, and the other end is guided by the guide portion 4 to avoid problems such as jamming, wrinkling, and slippage during processing.
[0036] As a further description of this embodiment, the adapter 3 includes a mandrel connecting rod 301 that passes through and is connected to the inner shaft core 2; and
[0037] A mandrel adapter rod 302 is connected to the end of the mandrel connecting rod 301 away from the inner shaft core 2.
[0038] As a further description of this embodiment, the guide portion 4 includes a universal joint 401 that cooperates with the inner shaft core 2, and the end of the universal joint 401 away from the inner shaft core 2 forms a joint end 402.
[0039] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. A compact cross-structure, characterized in that, The mold structure includes: Support (1); and The inner shaft (2) provided in the support part (1) is used to fix the pipe to be processed; A connecting part (3) is connected to one end of the inner shaft core (2); The mold structure also includes: A guide portion (4) is connected to the end of the inner shaft (2) away from the adapter (3), and the guide portion (4) is used to provide guidance for the pipe fitting.
2. The compact, center-punched die assembly of claim 1, wherein, The support portion (1) includes a core rod (101), and the inner shaft core (2) is disposed inside the core rod (101); and An outer ring (102) is provided on one side of the core rod (101), and the outer ring (102) is sleeved on the outside of the guide portion (4).
3. The compact, center-punched die assembly of claim 1, wherein, The adapter (3) includes a mandrel connecting rod (301) that passes through and is connected to the inner shaft core (2); and A mandrel adapter rod (302) is connected to the end of the mandrel connecting rod (301) away from the inner shaft core (2).
4. The compact, center-punched die assembly of claim 1, wherein, The guide portion (4) includes a universal joint (401) that cooperates with the inner shaft core (2), and the end of the universal joint (401) away from the inner shaft core (2) forms a joint end (402).