Wire rod fixed-length shearing device

Abstract

The utility model relates to the technical field of wire rod shearing, in particular to a wire rod fixed-length shearing device which is used for shearing a cable according to a preset length and comprises a platen, a driving wheel, a driven wheel, a cutter, an elastic telescopic assembly and a limiting plate. The bedplate is horizontally arranged; the driving wheel is rotationally mounted on the upper surface of the table plate, and the driving wheel is driven by a driving part to rotate; the driven wheel is arranged on the upper surface of the platen in a sliding mode, and the driven wheel presses the cable against the driving wheel through the elastic telescopic assembly. The cutter is positioned above the limiting plate; the driving wheel is matched with the driven wheel to convey the cable to one side of the limiting plate so that the cable can be sheared by the cutter. According to the utility model, when the driving wheel rotates, the cable can be driven to do linear motion, so that the cable is prevented from being bent, the shearing precision is improved, and the lengths of all sections of the sheared cable are equal.

Description

Technical Field

[0001] The utility model relates to the technical field of wire shearing, in particular to a wire fixed-length shearing device. Background Art

[0002] Wire cutting to length is a common process, which is mainly used to accurately cut wires to specific lengths.

[0003] For example, a Chinese utility model with the announcement number CN220011668U discloses a tension-free fixed-length wire shearing device, which belongs to the technical field of wire shearing equipment. The utility model includes a bracket, a wire pay-off drum is arranged on one side of the bracket, and a fixed-length shearing device is arranged on the other side, and also includes a tension elimination mechanism arranged between the wire pay-off drum and the fixed-length shearing device, the tension elimination mechanism includes a driving roller and a pressure roller arranged on one side of the wire pay-off drum and connected to the bracket for rotation and cooperating with each other to realize the wire conveying, and a sensing mechanism is arranged between the driving roller and the pressure roller and the fixed-length shearing device, the sensing mechanism includes a guide roller connected to the bracket for rotation, and sensors are arranged above both ends of the guide roller, and also includes a control panel, the control panel is electrically connected to the driving roller and the sensor, the utility model effectively improves the precision of wire shearing, and the device has a simple structure and is easy to use.

[0004] However, the technical solutions disclosed in the above patents and the methods used in the related prior arts all have the problem of poor precision. Specifically, with respect to the technical solutions disclosed in the above patents, since the wire itself has a certain weight, the wire between the "conveying roller 10" and the "cutting mechanism 11" bends due to its own gravity, which in turn causes the wire passing through the "conveying roller 10" to be unable to pass through the "cutting mechanism 11" completely, that is, there will be a situation where the wire is bent and accumulated between the "conveying roller 10" and the "cutting mechanism 11", resulting in a decrease in the precision of the wire length obtained by cutting the "cutting mechanism 11". Utility Model Content

[0005] The utility model aims to provide a wire fixed-length shearing device to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fixed-length shearing device for wires, used to cut the wires according to a predetermined length, the fixed-length shearing device comprising a table, a driving wheel, a driven wheel, a cutter, an elastic telescopic component and a limit plate;

[0007] The tabletop is arranged horizontally;

[0008] The driving wheel is rotatably mounted on the upper surface of the table, and the driving wheel is driven to rotate by a driving component;

[0009] The driven wheel is slidably arranged on the upper surface of the platform, and the driven wheel presses the cable against the driving wheel through the elastic telescopic component;

[0010] The limiting plate is fixed on the upper surface of the table;

[0011] The cutting knife is located above the limiting plate;

[0012] The driving wheel cooperates with the driven wheel to transport the cable to one side of the limiting plate for cutting by the cutter.

[0013] Preferably, the cutting edge of the cutter is inclined and serrated;

[0014] The limiting plate and the table plate are both provided with cutting grooves for accommodating the cutting knife.

[0015] Preferably, one end surface of the limiting plate close to the driving wheel is an arc-shaped surface, the center of the arc-shaped surface is located on the axis of the driving wheel, and the distance between the arc-shaped surface and the driving wheel is smaller than the diameter of the cable.

[0016] Preferably, the elastic telescopic assembly comprises a compression spring, two fixed plates, a linear guide pair fixed between the two fixed plates, and a bearing seat slidably connected to the linear guide pair;

[0017] The fixing plate is fixed to the bottom surface of the table top;

[0018] The two ends of the compression spring are respectively fixedly connected to the bearing seat and one of the fixing plates;

[0019] The connecting shaft of the driven wheel is rotatably connected to the linear guide pair through a bearing seat.

[0020] Preferably, the driving component comprises a stepping motor.

[0021] Preferably, a fixing frame is fixedly mounted on the upper surface of the table, a vertical telescopic telescopic component is fixedly mounted on the fixing frame, and the top end of the cutter is connected to the bottom end of the telescopic component.

[0022] Preferably, the tops of the outer peripheral surfaces of the driving wheel and the driven wheel are both provided with conical surfaces.

[0023] Compared with the prior art, the beneficial effects of the utility model are:

[0024] The utility model sets the table plate horizontally and utilizes the elastic telescopic component to enable the driven wheel to press the cable onto the driving wheel, so that the driving wheel can drive the cable to move in a straight line when rotating, thereby avoiding the cable bending, improving the cutting accuracy, and making the length of each cable section equal after cutting. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a front view cross-sectional structural schematic diagram of the utility model;

[0026] Figure 2 It is a schematic diagram of a partial structure of the utility model from a top view;

[0027] Figure 3 This is a bottom view structural diagram of the elastic telescopic component of the utility model;

[0028] Figure 4 For this utility model Figure 1 Enlarged structural diagram at A in the middle.

[0029] In the figure:

[0030] 1. Table; 2. Driving wheel; 21. Conical surface; 3. Driven wheel; 31. Connecting shaft; 4. Stepper motor; 5. Cable; 6. Cutter; 61. Blade; 7. Fixed frame; 8. Telescopic component; 9. Elastic telescopic component; 91. Compression spring; 92. Fixed plate; 93. Linear guide pair; 94. Bearing seat; 10. Limit plate; 101. Cutting groove; 102. Arc surface. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] See also Figure 1-Figure 4 , the utility model provides a technical solution:

[0033] A wire cutting device for cutting a cable 5 to a predetermined length, the cutting device comprising a table 1, a driving wheel 2, a driven wheel 3, a cutter 6, an elastic telescopic component 9 and a limit plate 10;

[0034] The table 1 in this embodiment is arranged horizontally; during use, the cable 5 is driven by the driving wheel 2 and the driven wheel 3 to slide on the surface of the table 1. When the driving wheel 2 rotates a predetermined number of times, the cutter 6 is driven to move, thereby completing the cutting of the cable 5. Every time the driving wheel 2 rotates one circle, the cable 5 with the same circumference as the driving wheel 2 can be transported from one side of the driving wheel 2 to the other side, so that the cutting length of the cable 5 can be determined according to the number of rotations of the driving wheel 2.

[0035] like Figure 1-Figure 4As shown, the driving wheel 2 is rotatably mounted on the upper surface of the table 1, the distance between the bottom end surface of the driving wheel 2 and the upper surface of the table 1 is smaller than the diameter of the cable 5, and the driving wheel 2 is driven to rotate by a driving component; the driving component in this embodiment includes a stepping motor 4.

[0036] like Figure 1-Figure 4 As shown, the driven wheel 3 is slidably set on the upper surface of the table 1, and the distance between the bottom end surface of the driven wheel 3 and the upper surface of the table 1 is smaller than the diameter of the cable 5. The driven wheel 3 presses the cable 5 against the driving wheel 2 through the elastic telescopic component 9; a strip through hole is opened on the table 1, and the connecting shaft 31 of the driven wheel 3 can move in the strip through hole, thereby changing the distance between the driven wheel 3 and the driving wheel 2.

[0037] like Figure 1-Figure 4 As shown, the limit plate 10 is fixed on the upper surface of the table 1; the cutter 6 is located above the limit plate 10; the driving wheel 2 cooperates with the driven wheel 3 to transport the cable 5 to one side of the limit plate 10 for cutting by the cutter 6.

[0038] The actual working principle is: under normal conditions, the driven wheel 3 contacts the driving wheel 2 under the elastic force of the elastic telescopic component 9; when the cable 5 needs to be transported, the cable 5 is directly pressed between the driving wheel 2 and the driven wheel 3 (such as Figure 1 and Figure 2 As shown), the stepper motor 4 can be started to drive the driving wheel 2 to rotate. Since the driven wheel 3 presses the cable 5 against the driving wheel 2 at this time, the friction between the driving wheel 2 and the cable 5 can make the driving wheel 2 drive the cable 5 to move gradually, and the driven wheel 3 rotates at the same time. When the stepper motor 4 drives the driving wheel 2 to rotate a predetermined number of times, the stepper motor 4 stops working, and the cable 5 can be cut by the cutter 6 at this time; then the stepper motor 4 continues to drive the driving wheel 2 to rotate a predetermined number of times and then stops working, and then the cable 5 is cut by the cutter 6, and this cycle is repeated to achieve fixed-length cutting of the cable 5.

[0039] In the above scheme, by setting the table 1 horizontally and utilizing the elastic telescopic component 9, the driven wheel 3 can press the cable 5 onto the driving wheel 2, so that when the driving wheel 2 rotates, the cable 5 can be driven to move in a straight line, avoiding cable bending, improving the cutting accuracy, and making the length of each section of the cable 5 equal after cutting.

[0040] like Figure 1-Figure 4 As shown, the cutting edge 61 of the cutter 6 is inclined serrated. The setting of the inclined serrated cutting edge 61 can, on the one hand, utilize the inclined cutting edge 61 to press the cable 5 onto the limiting plate 10 before cutting it, and the inclined cutting edge 61 has a displacement action relative to the cable 5 during the descending process, and then cooperates with the serrated shape of the cutting edge 61 to achieve a good shearing effect; both the limiting plate 10 and the table 1 are provided with a cutting groove 101 for accommodating the cutter 6.

[0041] like Figure 1-Figure 4 As shown, one end face of the limit plate 10 close to the driving wheel 2 is an arc surface 102, the center of the arc surface 102 is located on the axis of the driving wheel 2, and the distance between the arc surface 102 and the driving wheel 2 is smaller than the diameter of the cable 5, thereby preventing the cable 5 from entering the interior of the arc surface 102, so that the cable 5 can be smoothly and linearly transported to the bottom of the cutter 6.

[0042] like Figure 1-Figure 4 As shown, the elastic expansion assembly 9 includes a compression spring 91, two fixed plates 92, a linear guide pair 93 fixed between the two fixed plates 92, and a bearing seat 94 slidably connected to the linear guide pair 93; two linear guide pairs 93 are provided, and are symmetrically arranged on both sides of the bearing seat 94; the fixed plate 92 is fixed to the bottom surface of the table 1; the two ends of the compression spring 91 are respectively fixedly connected to the bearing seat 94 and one of the fixed plates 92; the connecting shaft 31 of the driven wheel 3 is rotatably connected to the linear guide pair 93 through the bearing seat 94. The linear guide pair 93 is used to limit the sliding direction of the bearing seat 94, and the bearing seat 94 is used to realize the rotation connection of the driven wheel 3.

[0043] like Figure 1-Figure 4 As shown, a fixing frame 7 is fixedly mounted on the upper surface of the table 1, and a vertical telescopic telescopic component 8 is fixedly mounted on the fixing frame 7, and the top end of the cutter 6 is connected to the bottom end of the telescopic component 8. In this embodiment, the telescopic component 8 can be a cylinder or an electric push rod.

[0044] like Figure 1-Figure 4 As shown, the top of the outer circumference of the driving wheel 2 and the driven wheel 3 are both provided with a conical surface 21, so as to facilitate pressing the cable 5 between the driving wheel 2 and the driven wheel 3 for clamping.

[0045] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wire cutting device for cutting a cable (5) to a predetermined length, characterized in that: The fixed-length shearing device comprises a table (1), a driving wheel (2), a driven wheel (3), a cutter (6), an elastic telescopic component (9) and a limiting plate (10); The tabletop (1) is arranged horizontally; The driving wheel (2) is rotatably mounted on the upper surface of the platform (1), and the driving wheel (2) is driven to rotate by a driving component; The driven wheel (3) is slidably arranged on the upper surface of the platform (1), and the driven wheel (3) presses the cable (5) against the driving wheel (2) through the elastic telescopic component (9); The limiting plate (10) is fixed on the upper surface of the table (1); The cutting knife (6) is located above the limiting plate (10); The driving wheel (2) cooperates with the driven wheel (3) to transport the cable (5) to one side of the limiting plate (10) for cutting by the cutter (6).

2. A wire cutting device according to claim 1, characterized in that: The cutting edge (61) of the cutting knife (6) is in an inclined sawtooth shape; The limiting plate (10) and the table plate (1) are both provided with a cutting groove (101) for accommodating the cutting knife (6).

3. A wire cutting device according to claim 1, characterized in that: One end surface of the limiting plate (10) close to the driving wheel (2) is an arc-shaped surface (102), the center of the arc-shaped surface (102) is located on the axis of the driving wheel (2), and the distance between the arc-shaped surface (102) and the driving wheel (2) is smaller than the diameter of the cable (5).

4. A wire cutting device according to claim 1, characterized in that: The elastic telescopic component (9) comprises a compression spring (91), two fixed plates (92), a linear guide pair (93) fixed between the two fixed plates (92), and a bearing seat (94) slidably connected to the linear guide pair (93); The fixing plate (92) is fixed to the bottom surface of the table top (1); The two ends of the compression spring (91) are respectively fixedly connected to the bearing seat (94) and one of the fixing plates (92); The connecting shaft (31) of the driven wheel (3) is rotatably connected to the linear guide pair (93) via a bearing seat (94).

5. The wire cutting device according to claim 1, characterized in that: The driving component comprises a stepping motor (4).

6. The wire cutting device according to claim 1, characterized in that: A fixing frame (7) is fixedly mounted on the upper surface of the table (1), a vertical telescopic telescopic component (8) is fixedly mounted on the fixing frame (7), and the top end of the cutting knife (6) is connected to the bottom end of the telescopic component (8).

7. The wire cutting device according to claim 1, characterized in that: The tops of the outer peripheral surfaces of the driving wheel (2) and the driven wheel (3) are both provided with conical surfaces (21).

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