A composite mold for leveling and shaping freight train doors

Abstract

A composite mold for leveling and shaping freight train doors, used for leveling and shaping the left door, right door and lower side door of the freight train, comprises an upper mold and a lower mold, the lower mold is provided with a long rod main body groove and a short rod main body groove perpendicular to each other, the long rod main body protrusion and the short rod main body protrusion are both in the shape of a straight-edged ellipse, a cross groove is provided inside the long rod main body groove, the upper mold is provided with a long rod main body protrusion and a short rod main body protrusion, and a cross support plate corresponding to the horizontal position of the cross groove is provided inside the long rod main body protrusion and the short rod main body protrusion. In short, the present invention processes three types of freight train doors through a composite mold, covering the left door, right door and lower side door of the freight train, has the advantage of three-in-one composite processing, is suitable for a variety of freight train doors, and also has the advantages of conveniently saving production costs, improving production efficiency, no need to change molds and shortening production time.

Description

Technical Field

[0001] The invention relates to the technical field of freight train door repair and processing, in particular to a composite mould for levelling and shaping freight train doors. Background Art

[0002] In the process of freight train moving, in order to ensure safety, the doors of freight train must be kept in closed state. However, unlike car doors, freight train has multiple doors, right door, left door and lower side door. Among them, the left door and the right door are large doors, and the lower side door is a small door. The lower side door is generally used frequently and deformed during long-term use, which will affect the closing of the freight train door. In actual use, due to the different types of freight trains, the corresponding freight train doors are also different. Therefore, different freight train doors are leveled and shaped according to needs to eliminate the deformation of the freight train doors and ensure the normal operation of the freight train doors.

[0003] In the process of leveling and shaping the corresponding small doors and large doors of freight trains, corresponding leveling molds need to be set for different freight train doors, and different freight train doors need to be produced with separate molds, which not only has high production costs, but is also inconvenient to transport and store, and it is impossible to perform leveling and shaping operations on the doors. If multiple leveling molds are forcibly merged into one mold structure, conflicts will occur between different parts inside the mold, making it impossible to ensure the normal operation of the small doors of the freight trains. Summary of the Invention

[0004] The purpose of the present invention is to provide a composite mold for leveling and shaping freight train doors to solve the technical problems raised in the above background technology, such as high production cost, low production efficiency, inapplicability to a variety of freight train doors and inconvenient equipment use.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a composite mold for leveling and shaping freight train doors, which is used for leveling and shaping the left door, right door and lower door of the freight train, and includes an upper mold and a lower mold, the upper mold bulges outward, and the lower mold is concave inward, and the lower mold is provided with a long rod main body groove and a short rod main body groove perpendicular to each other, the long rod main body protrusion and the short rod main body protrusion are both in the shape of a straight-edged ellipse, a cross groove is provided inside the long rod main body groove, the longitudinal extension of the cross groove horizontally passes through the lateral sides of the short rod main body groove, and the lateral extension of the cross groove penetrates into the long rod main body groove that passes through the short rod main body groove laterally, and the upper mold is provided with a groove that is perpendicular to the long rod main body groove. The long rod main body protrusion matches the horizontal position and the short rod main body protrusion matches the horizontal position of the short rod main body groove. A cross support plate corresponding to the horizontal position of the cross groove is arranged inside the long rod main body protrusion and the short rod main body protrusion. Four transverse dividers separating the longitudinal parts of the cross support plate are arranged in the extension direction of the cross support plate toward the long rod main body protrusion. The two transverse dividers located at the same end of the longitudinal part of the cross support plate are respectively located on both sides of the straight side part of the short rod main body protrusion on the same side. Two longitudinal dividers separating the transverse parts of the cross support plate are arranged in the extension direction of the cross support plate toward the short rod main body protrusion. The longitudinal dividers are respectively located on the inner sides of the straight side part of the long rod main body protrusion on the same side.

[0006] Furthermore, the intersection of the long rod body groove, the short rod body groove, and the cross groove is provided with four rectangular protrusions distributed around the corners of the cross groove. These four rectangular protrusions correspond to the intersection of the two transverse dividers and two longitudinal dividers located on the inner side of the upper mold. Furthermore, the transverse ends of the cross support plate overlap with the straight edges of the long rod body protrusions, and the horizontal ends of the short rod body protrusion are separated by two extended dividing grooves parallel to the longitudinal dividers. The two extended dividing grooves are located on the outer sides of the corresponding transverse ends of the cross support plate.

[0007] Furthermore, an inwardly recessed rectangular deep groove is provided at a position of the short rod main body protrusion close to the long rod main body protrusion, and one end of the rectangular deep groove extends downward.

[0008] Furthermore, the vertical cross-section of the rectangular deep groove is in the shape of a downwardly concave semicircular arc.

[0009] Furthermore, downwardly recessed assembly grooves are provided at the four corners of the upper mold, and assembly protrusions matching and connected to the four assembly grooves are provided at the four corners of the lower mold.

[0010] Furthermore, the assembly groove opens outward in a horizontal direction away from the center of the upper mold, and two outer side walls of the assembly protrusion are on the same plane as two outer side walls of the corresponding lower mold.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. The present invention uses an upper mold and a lower mold in conjunction to perform leveling and shaping operations on the left door, right door, and lower side door of a freight train. The part to be leveled is placed on the upper mold, and then the lower mold is buckled on the upper mold. The assembly groove and the assembly protrusion are convenient for the assembly connection of the upper mold and the lower mold, and also for aligning the position of the leveling part. Then, the mold is moved to the pressing platform position of the corresponding mold pressing machine through a roller conveyor for mold pressing.

[0013] 2. The present invention performs a leveling operation on one type of freight train door through the long rod main body groove and the long rod main body protrusion and the cross groove and the longitudinal part of the cross support plate, and performs a leveling operation on another type of freight train door through the short rod main body groove and the short rod main body protrusion and the cross groove and the longitudinal part of the cross support plate. The accessories of the second type of freight train door are accommodated by the rectangular depth groove, which facilitates the alignment of the second type of freight train door. The cross support plate, the long rod main body protrusion and the short rod main body protrusion are separated by the transverse divider and the transverse divider, which facilitates the leveling operation of the lower side door of the freight train. Therefore, three types of freight train doors are processed by a composite mold, covering the left door, right door and lower side door of the freight train, with the advantage of three-in-one composite processing, and no mold needs to be replaced. The scope of application is wider, and it is more convenient to carry and store, with the advantages of reducing production costs and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 Schematic diagram of the structure of the present invention (assembly groove and assembly protrusion omitted);

[0015] Figure 2 Schematic diagram of the connection between the cross groove and the lower mold in the present invention;

[0016] Figure 3 A three-dimensional diagram of the lower mold of the present invention;

[0017] Figure 4 A three-dimensional diagram of the upper mold of the present invention;

[0018] Figure 5 It is a front view of the upper mold in the present invention.

[0019] In the figure: 1. Upper mold; 2. Lower mold; 3. Long rod main body groove; 4. Short rod main body groove; 5. Cross groove; 6. Rectangular protrusion; 7. Horizontal separator; 8. Longitudinal separator; 9. Long rod main body protrusion; 10. Short rod main body protrusion; 11. Cross support plate; 12. Extended dividing groove; 13. Rectangular depth groove; 14. Longitudinal extension part; 15. Horizontal extension part. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0021] Example 1

[0022] like Figures 1 to 5 As shown, a composite mold for leveling and shaping freight train doors is used to level and shape the left, right, and lower side doors of freight trains. It includes an upper mold 1 and a lower mold 2. The upper mold 1 is convex outward, while the lower mold 2 is concave inward. The lower mold 2 is provided with a long rod main body groove 3 and a short rod main body groove 4, which are perpendicular to each other. The long rod main body protrusion 9 and the short rod main body protrusion 10 are both in the shape of straight-sided ovals. A cross groove 5 is provided inside the long rod main body groove 3. The longitudinal extension 14 of the cross groove 5 horizontally passes through the lateral sides of the short rod main body groove 4, and the lateral extension 15 of the cross groove 5 extends deep into the long rod main body groove 3 that passes through the short rod main body groove 4. Four rectangular protrusions 6 are provided at the intersection of the long rod main body groove 3, the short rod main body groove 4, and the cross groove 5, and are distributed around the corners of the cross groove 5. The four rectangular protrusions 6 correspond to the intersection of two lateral dividers 7 and two longitudinal dividers 8 located on the inner side of the upper mold 1.

[0023] The upper mold 1 is provided with a long rod main body protrusion 9 that matches the horizontal position of the long rod main body groove 3 and a short rod main body protrusion 10 that matches the horizontal position of the short rod main body groove 4. A cross support plate 11 corresponding to the horizontal position of the cross groove 5 is provided inside the long rod main body protrusion 9 and the short rod main body protrusion 10. The cross support plate 11 is provided with four transverse partitions 7 that separate the longitudinal parts of the cross support plate 11 in the extension direction toward the long rod main body protrusion 9. The two transverse partitions 7 located at the same end of the longitudinal part of the cross support plate 11 are respectively located on both sides of the straight side parts of the short rod main body protrusion 10 on the same side. The cross support plate 11 is provided with two longitudinal partitions 8 that separate the transverse parts of the cross support plate 11 in the extension direction toward the short rod main body protrusion 10. The longitudinal partitions 8 are respectively located on the inner sides of the straight side parts of the long rod main body protrusion 9 on the same side. The lateral ends of the cross support plate 11 overlap with the straight edge portions of the long rod main body protrusion 9, and the horizontal ends of the short rod main body protrusion 10 are separated by two extended separation grooves 12 parallel to the longitudinal partition 8. The two extended separation grooves 12 are respectively located on the outer sides of the lateral ends of the corresponding cross support plate 11.

[0024] A rectangular, inwardly recessed groove 13 is provided near the long-rod protrusion 9 on the short-rod main body protrusion 10, with one end extending downward. The vertical cross-section of the rectangular, inwardly recessed groove 13 is a downwardly recessed semicircular arc. The four corners of the upper mold 1 are provided with downwardly recessed assembly grooves, and the four corners of the lower mold 2 are provided with assembly protrusions that mate with the four assembly grooves. The assembly grooves open outward horizontally away from the center of the upper mold 1, and the two outer sidewalls of the assembly protrusions are flush with the two outer sidewalls of the corresponding lower mold 2.

[0025] During use, the upper mold 1 and the lower mold 2 are used in conjunction to perform leveling and shaping operations on the small door of a freight train. The part to be leveled is placed on the upper mold 1, and then the lower mold 2 is buckled on the upper mold 1. The assembly grooves and assembly protrusions are convenient for the assembly connection of the upper mold 1 and the lower mold 2, and also for aligning the position of the leveling part. Then, the mold is moved to the pressing platform position of the corresponding mold pressing machine through a roller conveyor for mold pressing. It has the advantages of conveniently saving production costs, improving production efficiency, being applicable to a variety of freight train doors, eliminating the need to change molds, and shortening production time.

[0026] It will be apparent 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 characteristics of the present invention.

Claims

1. A composite mold for leveling and shaping freight train doors, used for leveling and shaping the left door, right door, and lower door of a freight train, characterized by: The invention comprises an upper mold (1) and a lower mold (2), wherein the upper mold (1) is convex outward and the lower mold (2) is concave inward, and the lower mold (2) is provided with a long rod main body groove (3) and a short rod main body groove (4) perpendicular to each other, and the long rod main body protrusion (9) and the short rod main body protrusion (10) are both in the shape of a straight-edge ellipse, and a cross groove (5) is provided inside the long rod main body groove (3), and the longitudinal extension (14) of the cross groove (5) horizontally passes through the lateral sides of the short rod main body groove (4), and the lateral extension (15) of the cross groove (5) penetrates into the long rod main body groove (3) that passes through the short rod main body groove (4) horizontally, and the upper mold (1) is provided with a long rod main body protrusion (9) that matches the horizontal position of the long rod main body groove (3) and a cross groove (15) that matches the horizontal position of the short rod main body groove (4). A cross support plate (11) corresponding to the horizontal position of the cross groove (5) is provided inside the short rod main body protrusion (10), the long rod main body protrusion (9) and the short rod main body protrusion (10), and the cross support plate (11) is provided with four transverse separators (7) for separating the longitudinal parts of the cross support plate (11) in the extension direction toward the long rod main body protrusion (9), and the two transverse separators (7) located at the same end of the longitudinal part of the cross support plate (11) are respectively located on both sides of the straight edge part of the short rod main body protrusion (10) on the same side, and two longitudinal separators (8) for separating the transverse parts of the cross support plate (11) are provided in the extension direction toward the short rod main body protrusion (10), and the longitudinal separators (8) are respectively located on the inner side of the straight edge part of the long rod main body protrusion (9) on the same side.

2. The composite mold for leveling and shaping freight train doors according to claim 1, characterized in that: Four rectangular protrusions (6) distributed around the corners of the cross groove (5) are provided at the intersection of the long rod main groove (3), the short rod main groove (4) and the cross groove (5), and the four rectangular protrusions (6) correspond to the intersection of two transverse separators (7) and two longitudinal separators (8) located on the inner side of the upper mold (1).

3. The composite mold for leveling and shaping freight train doors according to claim 2, characterized in that: The transverse ends of the cross support plate (11) overlap with the straight edge portions of the long rod main body protrusion (9), and the horizontal ends of the short rod main body protrusion (10) are separated by two extended separation grooves (12) parallel to the longitudinal separator (8), and the two extended separation grooves (12) are respectively located on the outer sides of the corresponding transverse ends of the cross support plate (11).

4. The composite mold for leveling and shaping freight train doors according to claim 3, characterized in that: The short rod main body protrusion (10) is provided with an inwardly recessed rectangular depth groove (13) at a position close to the long rod main body protrusion (9), and one end of the rectangular depth groove (13) extends downward.

5. The composite mold for leveling and shaping freight train doors according to claim 4, characterized in that: The vertical cross section of the rectangular deep groove (13) is in the shape of a downwardly concave semicircular arc.

6. A composite mold for leveling and shaping freight train doors according to any one of claims 2 to 5, characterized in that: The four corners of the upper mold (1) are provided with downwardly recessed assembly grooves, and the four corners of the lower mold (2) are provided with assembly protrusions that match and connect with the four assembly grooves.

7. The composite mold for leveling and shaping freight train doors according to claim 6, characterized in that: The assembly groove opens outward in a horizontal direction away from the center of the upper mold (1), and the two outer side walls of the assembly protrusion are on the same plane as the two outer side walls of the corresponding lower mold (2).

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