Lever type tension mechanism

Abstract

The utility model provides a lever type tension mechanism which comprises a workbench, a supporting column is arranged on the workbench, and one side of the supporting column is fixedly connected with a supporting block. A first shaft pin is arranged on the supporting block, a lever is arranged on the first shaft pin, one end of the lever is connected with the first shaft pin, and a second shaft pin is arranged at the other end of the lever; a first rotating wheel is arranged at the free end of the first shaft pin, a second rotating wheel is arranged at the free end of the second shaft pin, the lever can rotate relative to the supporting block with the first shaft pin as the center, and the lever, the first rotating wheel and the second rotating wheel can rotate relatively and independently. Through the lever-type swing design and cooperation of the first detector and the second detector which are arranged up and down and the conveying speed of the material pulling mechanism and the conveying mechanism, the material belt is kept in a specific tension state, the machining error of the material belt is further reduced, and therefore the production efficiency of chip inductors is improved, and the production cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the field of inductive equipment, and in particular relates to a lever type tension mechanism. Background Art

[0002] With the rapid rise of electronic technology, SMD inductors are deeply loved by the market due to their miniaturization, high quality, high energy storage and low resistance. Therefore, high-quality SMD inductor manufacturing technology is an indispensable and important part of promoting the development of electronic technology.

[0003] In the existing production process of chip inductors, the wire is generally made into a hollow coil by a paint stripping mechanism and a winding mechanism, and then the hollow coil is welded one by one in the material strip by a welding mechanism, and finally the welded material strip is cut into sections by a cutting mechanism to obtain the chip inductor;

[0004] However, due to certain errors in the conveying rates of the welding mechanism and the cutting mechanism during the conveying process of the material strip, the material strip between the welding mechanism and the cutting mechanism may be too loose or too tight. If it is too tight, it is easy to tear the material strip, and if it is too loose, it will affect the cutting accuracy of the cutting mechanism. Therefore, being too tight or too loose is not conducive to the rapid batch production of chip inductors. Utility Model Content

[0005] (1) Technical issues to be resolved

[0006] The utility model provides a lever-type tension mechanism, which aims to solve the problem that the conveying rate of the existing welding mechanism and the cutting mechanism has errors, and the material belt is too loose or too tight, which affects the production efficiency of the chip inductor.

[0007] (2) Technical solution

[0008] The utility model provides a lever-type tension mechanism, comprising a workbench, a support column is arranged on the workbench, a support block is fixedly connected to one side of the support column; a first shaft pin is arranged on the support block, a lever is arranged on the first shaft pin, one end of the lever is connected to the first shaft pin, and a second shaft pin is arranged on the other end; a first rotating wheel is arranged at the free end of the first shaft pin, and a second rotating wheel is arranged at the free end of the second shaft pin, the lever can rotate relative to the support block with the first shaft pin as the center, and the lever, the first rotating wheel and the second rotating wheel can all rotate relatively and independently;

[0009] When in use, the lever-type tension mechanism is used in conjunction with the feeding mechanism and the pulling mechanism respectively arranged on both sides thereof, and the material belt is continuously conveyed between the feeding mechanism and the pulling mechanism, and the material belt passes through the first rotating wheel and the second rotating wheel in sequence during the conveying process.

[0010] Furthermore, the first rotating wheel and the second rotating wheel have the same structure; the material belt contacts the top surface of the first rotating wheel and the bottom surface of the second rotating wheel respectively during the conveying process.

[0011] Furthermore, the first rotating wheel and the second rotating wheel are located on the same side of the lever.

[0012] Further, the distance from the first rotating wheel to the lever is equal to the distance from the second rotating wheel to the lever.

[0013] Furthermore, the support column is provided with a first detector and a second detector respectively, and an axis B formed by connecting the first detector and the second detector is parallel to the length direction of the support column.

[0014] Furthermore, the first detector is located above the lever, and the second detector is located below the lever.

[0015] Furthermore, both the first detector and the second detector are proximity switches.

[0016] Furthermore, a control system is also provided on the workbench, and the control system is electrically connected to the first detector, the second detector, the feeding mechanism and the pulling mechanism respectively.

[0017] Further, both ends of the first rotating wheel and the second rotating wheel are provided with limiting rings, and the diameter of the limiting ring is larger than the diameter of the first rotating wheel or the second rotating wheel.

[0018] Furthermore, a plurality of clamping grooves are provided on the first shaft pin and the second shaft pin, and the clamping grooves are used in conjunction with the clamping springs to limit the lever, the first rotating wheel and the second rotating wheel.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] Through the lever-type swing design, the first and second detectors arranged up and down cooperate with the conveying rates of the pulling mechanism and the feeding mechanism, so that the material strip is kept in a specific tension state, further reducing the processing error of the material strip, thereby improving the production efficiency of the chip inductor and reducing the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0022] Figure 2 For this utility model Figure 1 Enlarged view of A1.

[0023] Figure 3It is a side view of the overall structure of the utility model.

[0024] Figure 4 This is a schematic diagram of the material belt of the utility model being in an overly loose state.

[0025] Figure 5 This is a schematic diagram of the over-tightened state of the material belt of the present invention.

[0026] Figure 6 It is a top view of the utility model.

[0027] Figure 7 For the utility model Figure 3 Enlarged view of A2.

[0028] Figure 8 It is an overall exploded view of the utility model.

[0029] Fig. 9 It is a partial exploded view of the utility model.

[0030] Fig.10 The structure of the utility model is shown in FIG. Figure 1 .

[0031] Fig.11 The structure of the utility model is shown in FIG. Figure 2 .

[0032] Fig.12 The structure of the utility model is shown in FIG. Figure 3 .

[0033] Figure markings: 0-workbench, 1-feeding mechanism, 2-pulling mechanism, 3-lever-type tension mechanism, 31-support column, 32-support block, 321-first limiting threaded hole, 33-first axle pin, 331-first rotating wheel, 34-second axle pin, 341-second rotating wheel, 35-lever, 351-second limiting threaded hole, 36-limiting ring, 37-support plate, 371-first detector, 372-second detector, 38-card slot, 4-material belt. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0035] In the existing production process of chip inductors, the welded material strip needs to be transported from the welding mechanism to the cutting mechanism for cutting processing. However, due to the loss caused by machine adjustment and use, the transmission speeds of the driving wheels of the welding mechanism and the cutting mechanism are inconsistent, which causes the material strip between the welding mechanism and the cutting mechanism to be too loose or too tight. Too loose or too tight will affect the cutting accuracy of the cutting mechanism. Therefore, in order to improve the production efficiency of chip inductors and save costs, it is particularly important to solve the problem of the tightness of the material strip between the welding mechanism and the cutting mechanism.

[0036] In order to solve the above-mentioned problems of the prior art, Figure 1-12 As shown, the utility model provides a lever-type tension mechanism, including a workbench 0, on which a support column 31 is provided, and a support block 32 is provided on one side of the support column 31, and the support block 32 is fixedly connected to the support column 31; a first shaft pin 33 is provided on the support block 32, and a lever 35 is provided in the middle of the first shaft pin 33, one end of the lever 35 is connected to the first shaft pin 33, and the other end is provided with a second shaft pin 34; a first rotating wheel 331 is provided at the free end of the first shaft pin 33, and a second rotating wheel 341 is provided at the free end of the second shaft pin 34, and the lever 35 can rotate independently relative to the support block 32 with the first shaft pin 33 as the center, and the lever 35, the first rotating wheel 331 and the second rotating wheel 341 can all rotate relatively and independently;

[0037] When in use, the lever-type tension mechanism is used in conjunction with the feeding mechanism 1 and the pulling mechanism 2 respectively arranged on both sides thereof, and the material belt 4 is continuously conveyed between the feeding mechanism 1 and the pulling mechanism 2, and the material belt 4 passes through the first rotating wheel 331 and the second rotating wheel 341 in sequence during the conveying process.

[0038] Specifically, the first rotating wheel 331 and the second rotating wheel 341 have the same structure; the material belt 4 contacts the top surface of the first rotating wheel 331 and the bottom surface of the second rotating wheel 341 respectively during the conveying process;

[0039] Furthermore, if Figure 6 As shown, the first rotating wheel 331 and the second rotating wheel 341 are located on the same side of the lever 35;

[0040] Furthermore, the distance from the first rotating wheel 331 to the lever 35 is C1, the distance from the second rotating wheel 341 to the lever 35 is C2, and C1 is equal to C2;

[0041] When in use, since the lever 35 can rotate around the first axle pin 33 as the axis, in a natural state, the end of the lever 35 away from the first axle pin 33 will naturally fall, thereby driving the second rotating wheel 341 to press down and tighten the material belt 4, so that the material belt 4 maintains a certain tension state.

[0042] Specifically, Figure 7 As shown, the support column 31 is provided with a first detector 371 and a second detector 372, respectively. The first detector 371 and the second detector 372 are fixedly connected to the support column 31 through a support sheet 37, and an axis B formed by connecting the first detector 371 and the second detector 372 is parallel to the length direction of the support column 31;

[0043] Further, the first detector 371 is located above the lever 35, and the second detector 372 is located below the lever 35;

[0044] Furthermore, the first detector 371 and the second detector 372 are both proximity switches;

[0045] When in use, the proximity switch forms a sensing surface. When an object approaches the sensing surface of the proximity switch and reaches a certain distance, the proximity switch can also drive a DC appliance or provide control instructions to a computer device without the need for the object to have direct mechanical contact with the proximity switch.

[0046] Furthermore, the workbench 0 is also provided with a control system (not shown), and the control system is electrically connected to the first detector 371, the second detector 372, the feeding mechanism 1 and the pulling mechanism 2 respectively;

[0047] When in use, under the pulling force of the material belt 4 on the first rotating wheel 331 and the second rotating wheel 341, the lever 35 is maintained between the first detector 371 and the second detector 172;

[0048] When the material belt 4 is too loose, the second rotating wheel 341 and the lever 35 will naturally fall down under the action of gravity, so that the lever 35 and the second detector 372 are close to each other and the second detector 372 is triggered. At this time, the second detector 372 will send an electrical signal to the control system. After receiving the electrical signal, the control system will drive the material pulling mechanism 2 to increase the material pulling rate, so that the material belt 4 is tightened, and the lever 35 is further lifted and restored to the position between the first detector 371 and the second detector 372.

[0049] When the material belt 4 is too tight, the second rotating wheel 341 is lifted up under the pulling force of the material belt 4, so that the lever 35 is close to the first detector 371 and triggers the first detector 371. At this time, the first detector 371 sends an electrical signal to the control system. The control system receives the electrical signal and drives the feeding mechanism 1 to increase the feeding rate, so that the material belt 4 is loosened. Under the action of gravity, the lever 35 naturally falls and returns to the position between the first detector 371 and the second detector 372.

[0050] Through the mutual cooperation between the first detector 371 and the second detector 372 and the feeding mechanism 1 and the pulling mechanism 2, the lever 35 is always maintained between the first detector 371 and the second detector 372, so that the material belt 4 maintains a certain tension, which facilitates the normal transportation of the material belt 4 and further improves the production efficiency.

[0051] Specifically, Figure 8 As shown, both ends of the first rotating wheel 331 and the second rotating wheel 341 are provided with a limiting ring 36, and the diameter of the limiting ring 36 is larger than the diameter of the first rotating wheel 331 or the second rotating wheel 341;

[0052] When in use, the material belt 4 fits against the outer surfaces of the first rotating wheel 331 and the second rotating wheel 341, and the material belt 4 will be offset relative to the first rotating wheel 331 or the second rotating wheel 341 during the conveying process; when offset, the inner side of the limiting ring 36 will abut against the side of the material belt 4, thereby limiting and correcting the offset of the material belt 4.

[0053] Specifically, Fig. 9 As shown, a plurality of slots 38 are provided on the first shaft pin 33 and the second shaft pin 34 , and the slots 38 cooperate with the retaining springs to limit the lever 35 , the first rotating wheel 331 and the second rotating wheel 341 on the first shaft pin 33 and the second shaft pin 34 .

[0054] Preferably, if Fig.10 As shown, a first limiting threaded hole 321 is provided on the side of the support block 32, and the first limiting threaded hole 321 is connected to the first shaft pin 33 arranged on the support block 32. A limiting screw (not shown) is provided in the first limiting threaded hole 321. The limiting screw is rotated so that its end presses the first shaft pin 33, so that the first shaft pin 33 is fixed relative to the support block 32. The setting of the first limiting threaded hole 321 further improves the rotation stability of the lever 35 and the first rotating wheel 331.

[0055] Preferably, if Fig.11As shown, the lever 35 is provided with a second limiting threaded hole 351, and the second limiting threaded hole 351 is connected to the second shaft pin 34 arranged on the lever 35. A limiting screw is provided in the second limiting threaded hole 351. The limiting screw is rotated so that its end presses the second shaft pin 34, so that the second shaft pin 34 is fixed relative to the lever 35. The setting of the second limiting threaded hole 351 further improves the rotation stability of the second rotating wheel 341.

[0056] The following is a detailed description of the working principle of the utility model;

[0057] When in use, the lever-type tension mechanism is arranged between the feeding mechanism 1 and the pulling mechanism 2, and the material belt 4 is fed out from the feeding mechanism 1 and passes through the top surface of the first rotating wheel 331 and the bottom surface of the second rotating wheel 341 in sequence, and finally enters the pulling mechanism 2 for the next processing procedure;

[0058] When the material belt 4 is in an over-tight state, the pulling force of the material belt 4 drives the second rotating wheel 341 and the lever 35 to be lifted up and close to and trigger the first detector 371. Under the coordination of the control system, the feeding rate of the feeding mechanism 1 is increased to relax the material belt 4, so that the lever 35 naturally falls and returns to the position between the first detector 371 and the second detector 372.

[0059] When the material belt 4 is in an overly loose state, under the action of gravity, the second rotating wheel 341 and the lever 35 naturally fall close to and trigger the second detector 372. Under the coordination of the control system, the pulling rate of the pulling mechanism 2 is increased to tighten the material belt 4, thereby lifting the lever 35 and restoring it to a position between the first detector 371 and the second detector 372.

[0060] The innovation of the utility model lies in that the lever-type swing design and the coordination of the first and second detectors arranged up and down with the conveying rates of the pulling mechanism and the feeding mechanism keep the material strip in a specific tension state, further reducing the processing error of the material strip, thereby improving the production efficiency of the chip inductor and reducing the production cost.

[0061] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementations that can be understood by those skilled in the art.

[0062] It is obvious 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 features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A lever-type tension mechanism, characterized in that: The workbench (0) comprises a support column (31) on which a support block (32) is fixedly connected on one side of the support column (31); a first shaft pin (33) is provided on the support block (32); a lever (35) is provided on the first shaft pin (33); one end of the lever (35) is connected to the first shaft pin (33); and the other end of the lever (35) is provided with a second shaft pin (34); a first rotating wheel (331) is provided at the free end of the first shaft pin (33); a second rotating wheel (341) is provided at the free end of the second shaft pin (34); the lever (35) can rotate relative to the support block (32) with the first shaft pin (33) as the center; and the lever (35), the first rotating wheel (331) and the second rotating wheel (341) can all rotate relatively and independently; When in use, the lever-type tension mechanism is used in conjunction with a feeding mechanism (1) and a pulling mechanism (2) respectively arranged on two sides thereof, and a material belt (4) is continuously conveyed between the feeding mechanism (1) and the pulling mechanism (2), and the material belt (4) passes through the first rotating wheel (331) and the second rotating wheel (341) in sequence during the conveying process.

2. A lever-type tension mechanism according to claim 1, characterized in that: The first rotating wheel (331) and the second rotating wheel (341) have the same structure; during the conveying process, the material belt (4) contacts the top surface of the first rotating wheel (331) and the bottom surface of the second rotating wheel (341) respectively.

3. A lever-type tension mechanism according to claim 2, characterized in that: The first rotating wheel (331) and the second rotating wheel (341) are located on the same side of the lever (35).

4. A lever-type tension mechanism according to claim 3, characterized in that: The distance from the first rotating wheel (331) to the lever (35) is equal to the distance from the second rotating wheel (341) to the lever (35).

5. A lever-type tension mechanism according to claim 4, characterized in that: The support column (31) is provided with a first detector (371) and a second detector (372), respectively; an axis B formed by connecting the first detector (371) and the second detector (372) is parallel to the length direction of the support column (31).

6. A lever-type tension mechanism according to claim 5, characterized in that: The first detector (371) is located above the lever (35), and the second detector (372) is located below the lever (35).

7. A lever-type tension mechanism according to claim 5, characterized in that: The first detector (371) and the second detector (372) are both proximity switches.

8. The lever-type tension mechanism according to claim 5, characterized in that: The workbench (0) is also provided with a control system, which is electrically connected to the first detector (371), the second detector (372), the feeding mechanism (1) and the pulling mechanism (2) respectively.

9. The lever-type tension mechanism according to claim 1, characterized in that: Both ends of the first rotating wheel (331) and the second rotating wheel (341) are provided with limiting rings (36), and the diameter of the limiting ring (36) is greater than the diameter of the first rotating wheel (331) or the second rotating wheel (341).

10. The lever-type tension mechanism according to claim 1, characterized in that: A plurality of clamping grooves (38) are provided on the first shaft pin (33) and the second shaft pin (34). The clamping grooves (38) are used in conjunction with a clamping spring to limit the lever (35), the first rotating wheel (331) and the second rotating wheel (341).

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