Novel wheel die mechanism for bending and forming pipe fitting

Abstract

The utility model discloses a novel wheel die mechanism for bending and forming pipe fittings, which comprises an upper wheel die and a lower wheel die, a first U-shaped die groove is arranged at the die assembly position of the upper wheel die and the lower wheel die, the upper half part of the first U-shaped die groove is arranged at the bottom edge of the upper wheel die, and the lower half part of the first U-shaped die groove is arranged at the top edge of the lower wheel die. One end of the first U-shaped die cavity is provided with a tooth grain area, the upper wheel die is provided with a second die cavity extending upwards from the tooth grain area, and the lower wheel die is provided with a third die cavity extending downwards from the tooth grain area. According to the bending die, the first U-shaped die groove, the second die groove and the third die groove are combined for use, and the positions bent for three times are arranged at the same height, so that the overall height of the bending die can be reduced, meanwhile, the action of changing layers is omitted, the time required for bending is saved, and the bending efficiency is improved.

Description

Technical Field

[0001] The utility model relates to a novel wheel die mechanism for bending and forming pipe fittings. Background Art

[0002] At present, the wheel mold for multiple bending processing of "ball tube bending forming" is composed of three-layer wheel molds corresponding to three bendings respectively. The normal bending process of the ball tube is: layer height one, leaning on the mold and bending one, demoulding and changing layer two, leaning on the mold and bending two, demoulding and changing layer three, leaning on the mold and bending three, and resetting and changing layer one.

[0003] The tube bending operation wastes a certain amount of waiting time and causes unnecessary layer changing actions: three times of bending require three layer changes in total, and the three-step layer changing action takes about 1-3 seconds, which greatly reduces the bending efficiency during the tube bending operation. Utility Model Content

[0004] In view of the above problems, the utility model provides a new wheel die mechanism for bending and forming pipe fittings, which effectively solves the problems pointed out in the background technology.

[0005] The technical solution adopted by the utility model is:

[0006] A new wheel die mechanism for bending and forming pipe fittings comprises an upper wheel die and a lower wheel die, wherein a first U-shaped die groove is arranged at the mold joint of the upper wheel die and the lower wheel die, wherein the upper half of the first U-shaped die groove is located at the bottom edge of the upper wheel die, and the lower half is located at the top edge of the lower wheel die, and a tooth pattern area is arranged at one end of the first U-shaped die groove, wherein the upper wheel die is provided with a second die groove extending upward from the tooth pattern area, and the lower wheel die is provided with a third die groove extending downward from the tooth pattern area.

[0007] Preferably, the first U-shaped mold groove is a bent mold groove, and the end of the first U-shaped mold groove without the tooth pattern area to the second mold groove forms a two-bent mold groove, and the end of the first U-shaped mold groove without the tooth pattern area to the third mold groove forms a three-bent mold groove.

[0008] Preferably, the cross-sections of the first U-shaped die groove, the second die groove and the third die groove are all semicircular.

[0009] The semicircular die groove can provide the best support for the ball tube and ensure the bending effect.

[0010] Preferably, the upper wheel mold is provided with a first upper positioning rod and a second upper positioning rod which penetrate the upper wheel mold longitudinally, and the lower wheel mold is provided with a first lower positioning hole and a second lower positioning hole which penetrate the lower wheel mold longitudinally, the first upper positioning rod matches the first lower positioning hole, and the second upper positioning rod matches the second lower positioning hole.

[0011] The upper wheel mold and the lower wheel mold are accurately positioned when the mold is closed through the cooperation of the first upper positioning rod and the first lower positioning hole, and the second upper positioning rod and the second lower positioning hole to ensure the bending effect.

[0012] The utility model sets the positions of three bends at the same height by using the combination of the first U-shaped die groove, the second die groove and the third die groove, thereby reducing the overall height of the wheel die, eliminating the action of changing layers, saving the time required for bending and improving the bending efficiency.

[0013] The utility model can improve the clamping friction force by setting a tooth pattern area at one end of the first U-shaped mold groove, and the one-bend mold groove, the two-bend mold groove and the three-bend mold groove all include a tooth pattern area, which can improve the clamping friction force during the one-bend, the two-bend and the three-bend. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a structural schematic diagram of the upper wheel mold;

[0016] Figure 3 It is a structural schematic diagram of the lower wheel mold;

[0017] Figure 4 It is a schematic diagram of the structure of the utility model that performs a bend;

[0018] Figure 5 It is a schematic diagram of the structure of the utility model for performing two bends;

[0019] Figure 6 It is a schematic diagram of the structure of the three bends of the utility model. DETAILED DESCRIPTION

[0020] It should be noted that the following detailed descriptions are illustrative and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present application belongs.

[0021] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0022] In addition, in the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0023] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "plurality" means two or more, unless otherwise clearly defined.

[0024] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0026] The present invention is further described in detail below through specific embodiments in conjunction with the accompanying drawings.

[0027] like Figure 1-3As shown, a new wheel die mechanism for bending and forming pipe fittings comprises an upper wheel die 1 and a lower wheel die 2, wherein a first U-shaped die groove 3 is provided at the mold joint of the upper wheel die 1 and the lower wheel die 2, wherein the upper half of the first U-shaped die groove 3 is located at the bottom edge of the upper wheel die 1, and the lower half is located at the top edge of the lower wheel die 2, a tooth pattern area 4 is provided at one end of the first U-shaped die groove 3, the upper wheel die 1 is provided with a second die groove 5 extending upward from the tooth pattern area 4, and the lower wheel die 2 is provided with a third die groove 6 extending downward from the tooth pattern area 4.

[0028] The first U-shaped mold groove 3 is a bent mold groove, and the end of the first U-shaped mold groove 3 without the tooth pattern area 4 to the second mold groove 5 forms a two-bent mold groove, and the end of the first U-shaped mold groove 3 without the tooth pattern area 4 to the third mold groove 6 forms a three-bent mold groove.

[0029] The cross sections of the first U-shaped die groove 3 , the second die groove 5 and the third die groove 6 are all semicircular.

[0030] The upper wheel mold 1 is provided with a first upper positioning rod 7 and a second upper positioning rod 8 that penetrate the upper wheel mold 1 longitudinally, and the lower wheel mold 2 is provided with a first lower positioning hole 9 and a second lower positioning hole 10 that penetrate the lower wheel mold 2 longitudinally, the first upper positioning rod 7 matches the first lower positioning hole 9, and the second upper positioning rod 8 matches the second lower positioning hole 10.

[0031] The working principle of this utility model:

[0032] 1. First bend: put the pipe to be bent into the first bend die groove, and then perform the bending operation, such as Figure 4 As shown;

[0033] 2. Second bend: demould the pipe after the first bend, and then put it into the second bend die groove for bending operation, such as Figure 5 As shown;

[0034] 3. Three bends: demould the pipe after two bends, and then put it into the three-bend die groove for bending operation. Figure 6 As shown, remove the bent pipe fitting.

[0035] Finally, it should be noted that the above examples are only specific embodiments of the present invention. Obviously, the present invention is not limited to the above embodiments, and there are many variations. All variations that can be directly derived or associated with the content disclosed by a person skilled in the art from the present invention should be considered as the protection scope of the present invention.

Claims

1. A new wheel die mechanism for bending and forming pipe fittings, characterized in that: The invention comprises an upper wheel mold (1) and a lower wheel mold (2), wherein a first U-shaped mold groove (3) is provided at the mold joint of the upper wheel mold (1) and the lower wheel mold (2), the upper half of the first U-shaped mold groove (3) is located at the bottom edge of the upper wheel mold (1), and the lower half is located at the top edge of the lower wheel mold (2), one end of the first U-shaped mold groove (3) is provided with a tooth pattern area (4), the upper wheel mold (1) is provided with a second mold groove (5) extending upward from the tooth pattern area (4), and the lower wheel mold (2) is provided with a third mold groove (6) extending downward from the tooth pattern area (4).

2. A new wheel die mechanism for bending and forming pipe fittings according to claim 1, characterized in that: The first U-shaped die groove (3) is a curved die groove, and the end of the first U-shaped die groove (3) without the tooth pattern area (4) to the second die groove (5) forms a two-curved die groove, and the end of the first U-shaped die groove (3) without the tooth pattern area (4) to the third die groove (6) forms a three-curved die groove.

3. A new wheel die mechanism for bending and forming pipe fittings according to claim 1, characterized in that: The cross-sections of the first U-shaped die groove (3), the second die groove (5) and the third die groove (6) are all semicircular.

4. A new wheel die mechanism for bending and forming a pipe according to claim 1, characterized in that: The upper wheel mold (1) is provided with a first upper positioning rod (7) and a second upper positioning rod (8) which penetrate the upper wheel mold (1) longitudinally, and the lower wheel mold (2) is provided with a first lower positioning hole (9) and a second lower positioning hole (10) which penetrate the lower wheel mold (2) longitudinally, the first upper positioning rod (7) matches the first lower positioning hole (9), and the second upper positioning rod (8) matches the second lower positioning hole (10).

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