Multi-wedge belt type drawing machine

Abstract

The utility model relates to the technical field of metal tube processing, in particular to a multi-wedge belt type drawing machine, which comprises two groups of compression roller components, a multi-wedge belt and a servo motor, the two groups of compression roller components are oppositely arranged and are driven by a lifting mechanism to move in the vertical direction so as to compress a metal tube; the poly V-belt is laid on the pressing roller assembly and is driven by the servo motor and the transmission assembly to draw the metal pipe located on the poly V-belt. The multi-wedge belt transmission is adopted, the internal thread metal pipe is free of metal contact, friction traces cannot be generated, and the product quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of metal pipe processing, in particular to a multi-V-belt drawing machine. Background Art

[0002] After the internal thread of the metal tube is formed, it needs to be drawn from the forming equipment and then reeled. Or the metal tube without internal thread also needs to be drawn during the production process. However, the existing drawing method uses a chain rubber block type. The metal tube contacts the chain during the drawing process, which is prone to wear marks. Utility Model Content

[0003] The utility model solves the problems in the related art and proposes a multi-V belt drawing machine which uses a multi-V belt for transmission. The internally threaded metal pipe has no metal contact and no friction marks, thereby improving the quality of the product.

[0004] In order to solve the above technical problems, the utility model is realized through the following technical solutions: a multi-V belt drawing machine, including a pressure roller assembly, a multi-V belt, and a servo motor. Two groups of pressure roller assemblies are arranged relative to each other and are driven by a lifting mechanism to move in the vertical direction to compress the metal tube. The multi-V belt is laid on the pressure roller assembly and is driven by a servo motor and a transmission assembly to pull the metal tube located on the multi-V belt.

[0005] As a preferred solution, the pressure roller assembly includes a plurality of pressure rollers, and the plurality of pressure rollers are mounted on a mounting plate via a rotating shaft and bearings at both ends.

[0006] As a preferred solution, the lifting mechanism is a cylinder, and the piston rod end of the cylinder is connected to a connecting rod installed between the two mounting plates, thereby driving the pressure roller assembly to move in the vertical direction.

[0007] As a preferred solution, it also includes several groups of roller groups, which are distributed on the side where the two pressure roller assemblies are away from each other.

[0008] As a preferred embodiment, the roller group above the pressure roller assembly includes grooved rollers, and the multi-V belt passes over the grooved rollers; the roller group below the pressure roller assembly includes flat rollers and grooved rollers, and the multi-V belt passes through the gap between the flat rollers and the grooved rollers.

[0009] As a preferred solution, a belt stop pulley is further included, and the belt stop pulley is distributed on the side where the two pressure roller assemblies are away from each other and is located at the beginning and end of the poly-V belt.

[0010] Compared with the prior art, the beneficial effects of the present invention are: the present invention adopts a multi-V belt transmission, the internally threaded metal pipe has no metal contact, no friction marks are generated, and the quality of the product is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0012] Figure 2 This is a structural diagram of the pressure roller assembly of the utility model;

[0013] Figure 3 It is a cross-sectional view of the present utility model.

[0014] In the picture:

[0015] Pressure roller assembly, 101, pressure roller, 102, rotating shaft, 103, mounting plate, 104, cylinder, 105, connecting rod, 2, multi-V belt, 3, servo motor, 4, flat roller, 5, grooved roller, 6, belt pulley. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0017] 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, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0018] Unless otherwise specifically stated, the relative arrangement of the parts and steps, the numerical expressions and the numerical values ​​set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The techniques, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values ​​should be interpreted as being merely exemplary and not as limitations. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0019] In the description of the present invention, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0020] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0021] In addition, it should be noted that the use of words such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above words have no special meaning and therefore cannot be understood as limiting the scope of protection of this utility model.

[0022] like Figures 1 to 3 As shown, a multi-V belt drawing machine includes a pressure roller assembly 1, a multi-V belt 2, and a servo motor 3. Two groups of pressure roller assemblies 1 are arranged opposite to each other up and down and are driven by a lifting mechanism to move in the vertical direction. The multi-V belt 2 is laid on the pressure roller assembly 1, and the metal tube is placed on the multi-V belt 2. The lifting mechanism drives the upper and lower groups of pressure roller assemblies 1 to move toward each other to press the metal tube. The multi-V belt 2 is driven by the servo motor 3 and a transmission assembly. Specifically, the transmission assembly includes a driving pulley and a driven pulley. The multi-V belt 2 is an annular structure and is sleeved on the driving pulley and the driven pulley. The servo motor 3 drives the driving pulley to rotate through the reducer, so that the multi-V belt 2 moves in the horizontal direction, and the metal tube located on the multi-V belt 2 is pulled out from the internal thread forming mechanism of the previous process. The metal tube does not contact the metal during the drawing process and no friction marks are produced.

[0023] In one embodiment, the pressure roller assembly 1 includes four pressure rollers 101 , and the four pressure rollers 101 are mounted on a mounting plate 103 via a rotating shaft 102 and bearings at both ends.

[0024] In one embodiment, the lifting mechanism is a cylinder 104 , and the piston rod end of the cylinder 104 is connected to a connecting rod 105 installed between the two mounting plates 103 , thereby driving the pressure roller assembly 1 to move in the vertical direction.

[0025] In one embodiment, several groups of roller groups are further included, which are distributed on the side of the two pressure roller assemblies 1 away from each other, and are used to support the multi-V belt 2 and play a guiding role. Among them, the roller group above the pressure roller assembly 1 includes grooved rollers 5, and the multi-V belt 2 passes over the grooved rollers 5; the roller group below the pressure roller assembly 1 includes flat rollers 4 and grooved rollers 5, and the multi-V belt 2 passes through the gap between the flat rollers 4 and the grooved rollers 5.

[0026] In one embodiment, a belt stop pulley 6 is further included. The belt stop pulley 6 is distributed on the side where the two pressure roller assemblies 1 are away from each other. There are four belt stop pulleys 6, two at the head and two at the tail. The belt stop pulleys 6 serve to adjust the belt tension.

[0027] The above is a preferred embodiment of the present invention. Technicians in the field of the present invention can also change and modify the above embodiment. Therefore, the present invention is not limited to the above specific embodiment. Any obvious improvements, replacements or modifications made by technicians in this field on the basis of the present invention are within the scope of protection of the present invention.

Claims

1. A multi-V belt drawing machine, characterized in that: The invention comprises a pressure roller assembly (1), a multi-V belt (2) and a servo motor (3), wherein two groups of the pressure roller assemblies (1) are arranged relative to each other and are driven by a lifting mechanism to move in a vertical direction to compress a metal tube, and the multi-V belt (2) is laid on the pressure roller assembly (1) and is driven by the servo motor (3) and a transmission assembly to pull the metal tube on the multi-V belt (2).

2. The multi-V belt drawing machine according to claim 1, characterized in that: The pressure roller assembly (1) comprises a plurality of pressure rollers (101), and the plurality of pressure rollers (101) are mounted on a mounting plate (103) via a rotating shaft (102) and bearings at both ends.

3. The multi-V belt drawing machine according to claim 2, characterized in that: The lifting mechanism is a cylinder (104), and the piston rod end of the cylinder (104) is connected to a connecting rod (105) installed between two mounting plates (103), thereby driving the pressure roller assembly (1) to move in the vertical direction.

4. The multi-V belt drawing machine according to claim 1, characterized in that: It also includes a plurality of roller groups, wherein the roller groups are distributed on the side of the two pressure roller assemblies (1) that are away from each other.

5. The multi-V belt drawing machine according to claim 4, characterized in that: The roller group above the pressure roller assembly (1) includes a grooved roller (5), and the multi-V belt (2) passes over the grooved roller (5); the roller group below the pressure roller assembly (1) includes a flat roller (4) and a grooved roller (5), and the multi-V belt (2) passes through a gap between the flat roller (4) and the grooved roller (5).

6. The multi-V belt drawing machine according to claim 1, characterized in that: It also includes a belt stop pulley (6), which is distributed on the side of the two pressure roller assemblies (1) that are away from each other and is located at the beginning and end of the poly-V belt (2).

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