Continuous die for compressor cover plate production
Patent Information
- Application Number
- CN202522786822.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-29
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-12-29
AI Technical Summary
In continuous die production, the compressor cover plate is made of thick material, which makes it easy for the blanking part to break and the flatness to be substandard during one-time cutting, affecting the production qualification rate and making it difficult to achieve large-scale production.
The blanking process using a progressive die is divided into a pre-cutting section, a blanking and shaping section, and a full-cutting section, which perform two cutting processes and one shaping process respectively, reducing the thickness of a single cutting and improving the forming accuracy.
By performing two cutting processes and one shaping process, the production qualification rate of compressor cover plates is significantly improved, the possibility of breakage and non-compliance with flatness standards is reduced, and large-scale production is supported.
Smart Images
Figure CN224926862U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of compressor cover plate manufacturing technology, and in particular to a continuous mold for compressor cover plate manufacturing. Background Technology
[0002] Compressor cover plates require high strength, resulting in a relatively thick thickness, typically between 6-10mm. Commonly used compressor cover plates are produced using a progressive die. The material strip is positioned between the punch and die of the progressive die. After processing in steps such as punching, forming, and shaping, the strip is then blanked in the blanking section to produce the compressor cover plate. The blanking section includes a blanking parting body mounted on the punch. As the punch moves downwards, the blanking parting body cuts the formed compressor cover plate from the material strip in one pass. Due to the thickness of the compressor cover plate material, this one-pass cutting by the blanking parting body can easily lead to fractures, corner collapses, and substandard flatness, resulting in a low yield rate and hindering large-scale production. Utility Model Content
[0003] The technical problem solved by this utility model is to provide a continuous mold with a high yield rate for the production of compressor cover plates.
[0004] The technical solution adopted by this utility model to solve its technical problem is: a continuous die for producing compressor cover plates, including a blanking section, the thickness of the material strip is h, and along the material strip conveying direction, the blanking section sequentially includes a pre-shearing section, a blanking and shaping section, and a full-shearing section. The pre-shearing section can lower the height of the produced compressor cover plate by 0.5h-0.7h. The pre-shearing section is provided with a first dividing cavity adapted to the shape of the compressor cover plate. The blanking and shaping section is provided with a second dividing cavity adapted to the shape of the compressor cover plate. The full-shearing section includes a full-shearing dividing punch body provided on the punch. The bottom of the full-shearing dividing punch body is provided with a third punch parting cavity adapted to the shape of the upper surface of the compressor cover plate.
[0005] Furthermore, the pre-shearing division is able to lower the height of the compressor cover plate produced by 0.67h.
[0006] Furthermore, the pre-shearing division section includes a pre-shearing division punch body disposed on the punch and a pre-shearing division die body disposed on the die, and the first division cavity includes a first punch parting cavity disposed at the bottom of the pre-shearing division punch body and a first die parting cavity disposed at the top of the pre-shearing division die body.
[0007] Furthermore, a pre-shearing limiting inner top is provided in the first die parting cavity.
[0008] Furthermore, the blanking and shaping sub-section includes a blanking and shaping sub-section punch body disposed on the punch and a blanking and shaping sub-section die body disposed on the die. The second sub-section cavity includes a second punch parting cavity disposed at the bottom of the blanking and shaping sub-section punch body and a second die parting cavity disposed at the top of the blanking and shaping sub-section die body.
[0009] Furthermore, the full shearing division also includes a receiving die body set on the die cavity, and a receiving parting cavity is provided on the top of the receiving die body. The receiving parting cavity is adapted to the upper and lower positions of the third punch parting cavity.
[0010] The beneficial effects of this utility model are as follows: Along the conveying direction of the material belt, the blanking section sequentially includes a pre-cutting sub-section, a blanking and shaping sub-section, and a full-cutting sub-section. During the production of the compressor cover plate, the compressor cover plate that has already been formed on the material belt is blanked at the blanking section. The formed compressor cover plate is processed sequentially by the pre-cutting sub-section, the blanking and shaping sub-section, and the full-cutting sub-section to complete the blanking of the compressor cover plate. The pre-cutting sub-section performs a first cut on the produced compressor cover plate, reducing the height of the produced compressor cover plate by 0.5h-0.7h, and performs the first cut on the formed compressor cover plate. The blanking and shaping sub-section performs shaping processing on the compressor cover plate after the first cut. The full-cutting sub-section performs a second cut on the compressor cover plate to complete the blanking of the compressor cover plate. It is evident that the blanking process involves cutting the formed compressor cover plate twice, reducing the thickness of each cut, and performing blanking and shaping between the two cuts. This effectively reduces the possibility of fractures, corner collapses, and failure to meet flatness requirements in the compressor cover plate, significantly improving the production qualification rate of the compressor cover plate and facilitating large-scale production. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the continuous mold closing process of this utility model; Figure 2 This is a schematic diagram of the continuous mold opening process of this utility model; The following are labeled as follows: punch 1, die 2, strip 3, pre-shearing division 4, pre-shearing division punch 41, pre-shearing division die 42, blanking and shaping division 5, blanking and shaping division punch 51, blanking and shaping division die 52, full shearing division 6, full shearing division punch 61, receiving die 62, compressor cover plate 7. Detailed Implementation
[0012] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.
[0013] like Figure 1 , Figure 2As shown, the continuous die for producing compressor cover plates of this utility model includes a blanking section. The thickness of the material strip 3 is h. Along the conveying direction of the material strip 3, the blanking section includes a pre-shearing section 4, a blanking and shaping section 5, and a full-shearing section 6. The pre-shearing section 4 can lower the height of the produced compressor cover plate 7 by 0.5h-0.7h. The pre-shearing section 4 is provided with a first dividing cavity adapted to the shape of the compressor cover plate 7. The blanking and shaping section 5 is provided with a second dividing cavity adapted to the shape of the compressor cover plate 7. The full-shearing section 6 includes a full-shearing dividing punch body 61 provided on the punch 1. The bottom of the full-shearing dividing punch body 61 is provided with a third punch parting cavity adapted to the shape of the upper surface of the compressor cover plate 7.
[0014] For example Figure 1 , Figure 2 As shown, during the production of the compressor cover plate 7, the compressor cover plate 7, which has already been formed on the material strip 3, is blanked at the blanking section. The formed compressor cover plate 7 is processed sequentially in the first divisional cavity, the second divisional cavity, and the three-punch parting cavity, through the pre-shearing division 4, the blanking and shaping division 5, and the full-shearing division 6 to complete the blanking of the compressor cover plate 7. The pre-shearing division 4 performs a first cut on the produced compressor cover plate 7, reducing the height of the produced compressor cover plate 7 by 0.5h-0.7h, and performs the first cut on the formed compressor cover plate 7. The blanking and shaping division 5 extrudes the part of the compressor cover plate 7 that protrudes from the material strip 3 into the plane for shaping. The full-shearing division 6 performs a second cut on the compressor cover plate to complete the blanking of the compressor cover plate 7.
[0015] The pre-shearing division 4 can reduce the height of the produced compressor cover plate 7 by 0.5h-0.7h. That is, the pre-shearing division 4 performs a single cut on the formed compressor cover plate 7, with a cut thickness of 0.5h-0.7h, and the compressor cover plate 7 is not separated from the material strip 3. To ensure the processing effect of the pre-shearing division 4, the preferred solution is that the pre-shearing division 4 can reduce the height of the produced compressor cover plate 7 by 0.67h.
[0016] To ensure the effectiveness of the pre-shearing division 4, a preferred structure for the pre-shearing division 4 is, for example... Figure 2As shown, the pre-shearing division 4 includes a pre-shearing division punch 41 disposed on the punch 1 and a pre-shearing division die 42 disposed on the die 2. The first division cavity includes a first punch parting cavity disposed at the bottom of the pre-shearing division punch 41 and a first die parting cavity disposed at the top of the pre-shearing division die 42. When the punch 1 moves downward, the pre-shearing division punch 41 moves downward with the punch 1. The first punch parting cavity performs one cut on the compressor cover plate 7. After completion, the compressor cover plate 7 is located between the first punch parting cavity and the first die parting cavity. In order to control the cutting thickness of the pre-shearing division 4, a pre-shearing limiting inner top 43 is provided in the first die parting cavity. The pre-shearing limiting inner top 43 restricts the downward movement of the compressor cover plate 7, so that the cutting thickness of the compressor cover plate 7 by the pre-shearing division 4 is within a set range.
[0017] To ensure the effectiveness of the blanking and shaping sub-unit 5, a preferred structure for the blanking and shaping sub-unit 5 is as follows: Figure 2 As shown, the blanking and shaping sub-section 5 includes a blanking and shaping punch body 51 disposed on the punch 1 and a blanking and shaping die body 52 disposed on the die 2. The second sub-section cavity includes a second punch parting cavity disposed at the bottom of the blanking and shaping punch body 51 and a second die parting cavity disposed at the top of the blanking and shaping die body 52. When the punch 1 moves downward, the blanking and shaping punch body 51 moves downward with the punch 1, so that the compressor cover plate 7 is located between the second punch parting cavity and the second die parting cavity. The second punch parting cavity and the second die parting cavity perform extrusion and shaping processing on the compressor cover plate 7, extruding the portion of the compressor cover plate 7 protruding from the material strip 3 onto the plane. To ensure the effectiveness of the blanking and shaping sub-section 5, the size of the second sub-section cavity is slightly larger than the size of the compressor cover plate 7.
[0018] At the 6th section of the full shearing division, the compressor cover 7 will separate from the conveyor belt 3. This is done to reduce the possibility of the compressor cover 7 falling and causing product deformation after separation. For example... Figure 1 , Figure 2 As shown, the full shearing division 6 also includes a receiving die body 62 disposed on the die cavity 2. The top of the receiving die body 62 is provided with a receiving parting cavity, which is vertically matched with the parting cavity of the third punch. The receiving parting cavity is adapted to the shape of the lower surface of the compressor cover plate 7, and the compressor cover plate 7, after separating from the material strip 3, falls into the receiving parting cavity. To ensure the effectiveness of the receiving die body 62, the distance between the receiving parting cavity and the compressor cover plate 7 after being shaped by the blanking and shaping division 5 is less than 0.8h.
[0019] In summary, the blanking process involves two cuts on the formed compressor cover plate 7, reducing the thickness of each cut. Furthermore, blanking and shaping are performed between the two cuts, which effectively reduces the possibility of fractures, corner collapses, and failure to meet flatness requirements in the compressor cover plate 7. This significantly improves the production qualification rate of the compressor cover plate 7 and facilitates large-scale production.
Claims
1. A progressive die for producing compressor cover plates, comprising a blanking section, wherein the thickness of the strip (3) is h, characterized in that: Along the conveying direction of the material belt (3), the blanking section includes a pre-shearing section (4), a blanking and shaping section (5), and a full-shearing section (6) in sequence. The pre-shearing section (4) can lower the height of the produced compressor cover plate (7) by 0.5h-0.7h. The pre-shearing section (4) is provided with a first division cavity that matches the shape of the compressor cover plate (7). The blanking and shaping section (5) is provided with a second division cavity that matches the shape of the compressor cover plate (7). The full-shearing section (6) includes a full-shearing punch body (61) provided on the punch (1). The bottom of the full-shearing punch body (61) is provided with a third punch parting cavity that matches the shape of the upper surface of the compressor cover plate (7).
2. The progressive die for producing compressor cover plates as described in claim 1, characterized in that: The pre-shearing division (4) can lower the height of the produced compressor cover plate (7) by 0.67h.
3. The progressive die for producing compressor cover plates as described in claim 1, characterized in that: The pre-cutting division section (4) includes a pre-cutting division punch body (41) disposed on the punch (1) and a pre-cutting division die body (42) disposed on the die (2). The first division cavity includes a first punch parting cavity disposed at the bottom of the pre-cutting division punch body (41) and a first die parting cavity disposed at the top of the pre-cutting division die body (42).
4. The progressive die for producing compressor cover plates as described in claim 3, characterized in that: The first die parting cavity is provided with a pre-shear limiting inner top (43).
5. The progressive die for producing compressor cover plates as described in claim 1, characterized in that: The blanking and shaping sub-section (5) includes a blanking and shaping sub-section punch body (51) disposed on the punch (1) and a blanking and shaping sub-section die body (52) disposed on the die (2). The second sub-section cavity includes a second punch parting cavity disposed at the bottom of the blanking and shaping sub-section punch body (51) and a second die parting cavity disposed at the top of the blanking and shaping sub-section die body (52).
6. The progressive die for producing compressor cover plates as described in any one of claims 1 to 5, characterized in that: The full shearing division (6) also includes a receiving die body (62) set on the die cavity (2). The top of the receiving die body (62) is provided with a receiving parting cavity, and the receiving parting cavity is adapted to the upper and lower positions of the third punch parting cavity.