Coil stock supply device

Abstract

The utility model discloses a roll material feeding device, which relates to the technical field of electronic products and comprises a first driving mechanism, a second driving mechanism, a first pinch roller and at least two second pinch rollers. The first pressing wheel is arranged at the output end of the first driving mechanism, the first driving mechanism is used for driving the first pressing wheel to rotate, the second pressing wheels are rotationally arranged on the second driving mechanism, and the second driving mechanism is used for driving the second pressing wheels to be close to or away from the first pressing wheel; when one second pressing wheel abuts against the first pressing wheel, at least the other second pressing wheel abuts against the first pressing wheel.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic products, in particular to a coil supply device. Background Art

[0002] In the production process of electronic products, roll materials are often used. Roll materials are materials provided in roll form. Common ones include aluminum foil, copper foil, rubber materials, ACF (Anisotropic Conductive Film), etc.

[0003] In related technologies, the transmission of some coils is achieved through a roller structure. The upper and lower rollers press the coil, and the two rollers contact part of the surface of the coil to form a static friction fit. Then, the coil is driven by a motor to transport the coil. However, due to changes in the surface stress of the coil during the transmission process, the coil and the roller surface may slide relative to each other, causing the coil to slip or deviate, affecting the transmission efficiency of the coil. Utility Model Content

[0004] The main purpose of the utility model is to provide a coil material feeding device, which aims to ensure the stability of the coil material during the feeding process.

[0005] To achieve the above-mentioned purpose, the coil feeding device proposed in the present invention includes a first driving mechanism, a second driving mechanism, a first pinch wheel and at least two second pinch wheels;

[0006] The first pinch wheel is provided at the output end of the first driving mechanism, the first driving mechanism is used to drive the first pinch wheel to rotate, and each of the second pinch wheels is rotatably provided on the second driving mechanism, the second driving mechanism is used to drive each of the second pinch wheels to move closer to or away from the first pinch wheel;

[0007] When one of the second pressing wheels abuts against the first pressing wheel, at least another of the second pressing wheels abuts against the first pressing wheel.

[0008] In the technical solution of the present invention, the second drive mechanism is used to adjust the distance between the second pinch wheel and the first pinch wheel. By driving the second pinch wheel to abut against the first pinch wheel to compress the coil, the first pinch wheel rotates under the drive of the first drive mechanism, driving the second pinch wheel to rotate, and the coil is fed out through the friction between the coil and the first and second pinch wheels. Moreover, since when one second pinch wheel abuts against the first pinch wheel, at least another second pinch wheel abuts against the first pinch wheel, that is, when conveying the coil, at least two second pinch wheels abut against the first pinch wheel, thereby achieving double or multiple compression of the coil, which can effectively reduce the frequency of slipping or deviation and ensure the stability of the coil during the feeding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0010] Figure 1 This is a structural schematic diagram of an embodiment of a coil material supply device provided by the present invention;

[0011] Figure 2 for Figure 1 A partial enlarged view of point A in the middle;

[0012] Figure 3 This is a structural schematic diagram of another embodiment of the coil material supply device provided by the present invention.

[0013] Description of Figure Numbers:

[0014] 100. Coil feeding device; 1. First driving mechanism; 2. Second driving member; 21. Mounting slot; 3. Bracket; 31. Base; 32. Mounting portion; 4. First pinch wheel; 5. Second pinch wheel; 51. Limiting plate; 6. First position sensor; 7. Second position sensor.

[0015] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. 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 part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0017] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0018] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0019] The present invention provides a coil supply device 100 .

[0020] See also Figures 1 to 3 In one embodiment of the present invention, the coil feeding device 100 includes a first driving mechanism 1, a second driving mechanism, a first pinch wheel 4 and at least two second pinch wheels 5; the first pinch wheel 4 is arranged at the output end of the first driving mechanism 1, the first driving mechanism 1 is used to drive the first pinch wheel 4 to rotate, and each second pinch wheel 5 is rotatably arranged on the second driving mechanism, and the second driving mechanism is used to drive each second pinch wheel 5 to approach or move away from the first pinch wheel 4; wherein, when one second pinch wheel 5 abuts against the first pinch wheel 4, at least another second pinch wheel 5 abuts against the first pinch wheel 4.

[0021] Among them, the first pinch wheel 4 can be above the multiple second pinch wheels 5 or below the multiple second pinch wheels 5, or the first pinch wheel 4 and the multiple second pinch wheels 5 can be spaced apart in the horizontal direction or other directions, as long as the coil material feeding work can be completed. In this embodiment, the first pinch wheel 4 is arranged above the multiple second pinch wheels 5, and the corresponding first drive mechanism 1 and the second drive mechanism are spaced apart up and down. The upper and lower spacing is conducive to parallel feeding of the coil material, which facilitates subsequent work.

[0022] There are various options for the first drive mechanism 1. In this embodiment, the first drive mechanism 1 is a stepper motor. Stepper motors have a simple structure, are easy to maintain, and are durable, making them suitable for long-term continuous operation. Stepper motors also have precise step angles, enabling precise control of the rotational speed of the first pinch roller 4, which is crucial for ensuring product quality and production efficiency. In other embodiments, the first drive mechanism 1 may be a servo motor or a DC motor.

[0023] In the technical solution of the present invention, the second drive mechanism is used to adjust the distance between the second pinch wheel 5 and the first pinch wheel 4. By driving the second pinch wheel 5 to abut against the first pinch wheel 4 to compress the coil, the first pinch wheel 4 is then driven by the first drive mechanism 1 to rotate, driving the second pinch wheel 5 to rotate. The coil is then fed out through the friction between the coil and the first and second pinch wheels 4. Furthermore, since when one second pinch wheel 5 abuts against the first pinch wheel 4, at least another second pinch wheel 5 abuts against the first pinch wheel 4, that is, when conveying the coil, at least two second pinch wheels 5 abut against the first pinch wheel 4, achieving double or multiple compression of the coil, which can effectively reduce the frequency of slippage or deviation and ensure the stability of the coil during feeding.

[0024] Specifically, in one embodiment of the present invention, please refer to Figure 1 , each second pinch wheel 5 is sequentially arranged along the circumferential direction of the outer peripheral wall of the first pinch wheel 4, the second driving mechanism includes a second driving member 2 and a bracket 3, the bracket 3 is arranged at the output end of the second driving member 2, the second driving member 2 drives the bracket 3 to approach or move away from the first pinch wheel 4, and each second pinch wheel 5 rotates and is arranged at an end of the bracket 3 away from the second driving member 2. The arrangement of the bracket 3 facilitates the installation of each second pinch wheel 5, and the movement of the bracket 3 can be controlled by the second driving member 2 to control the distance between the first pinch wheel 4 and each second pinch wheel 5, so that one second driving member 2 can control the movement of multiple second pinch wheels 5, reducing the cost of use, and because each second pinch wheel 5 is sequentially arranged along the circumferential direction of the outer peripheral wall of the first pinch wheel 4, when one second pinch wheel 5 abuts against the first pinch wheel 4, the remaining second pinch wheels 5 will also abut against the first pinch wheel 4, ensuring multiple compression of the coil. This embodiment does not limit the specific arrangement of the second pinch rollers 5. They can be evenly distributed on one side of the first pinch roller 4 or on two adjacent sides of the first pinch roller 4. The distance between two adjacent second pinch rollers 5 can be the same or different, as long as stability is guaranteed during the feeding process. The second drive member 2 is preferably a cylinder. The cylinder has a simple structure and is easy to install and maintain. The cylinder can also provide a large thrust to ensure that the friction between the first and second pinch rollers 4, 5 and the coil is sufficient to drive the coil. The second drive member 2 can also be a linear motor, a hydraulic cylinder, etc.

[0025] Further, in one embodiment of the present invention, please refer to Figure 1 and Figure 2The bracket 3 includes a base 31 and at least two mounting portions 32 disposed on the base 31. The base 31 is disposed at the output end of the second drive member 2. Each mounting portion 32 is provided with a positioning shaft, and each second pinch roller 5 is sleeved on a positioning shaft. Providing the positioning shafts on the mounting portions 32 facilitates the installation and positioning of the second pinch rollers 5. The contact area between the base 31 and the output end of the second drive member 2 needs to be sufficiently large, ensuring uniform force, thereby improving feeding stability. Similarly, the connection structure between the mounting portions 32 and the base 31 also needs to be relatively stable to ensure stability when the first pinch rollers 4 abut against each other, preventing slippage and deviation. Among them, the second pressure wheels 5 can be set to only two. Setting only two second pressure wheels 5 can reduce the cost of the device. In this case, the number of mounting parts 32 is also two, and the two mounting parts 32 are set in mirror symmetry with respect to the base 31, so that the two second pressure wheels 5 are mirror symmetric with respect to the first pressure wheel 4. In the feeding state, the pressure applied by the first pressure wheel 4 to the two second pressure wheels 5 is consistent. In this way, the stability of feeding can also be guaranteed when only two second pressure wheels 5 are set.

[0026] In order to improve flexibility, in one embodiment of the present invention, the bracket 3 and the second driving member 2 are detachably connected, so that when feeding coils of different sizes, different types of brackets 3 can be replaced to use second pinch wheels 5 of different sizes. The specific connection method is preferably to open threaded holes of the same size on the bracket 3 and the second driving member 2, connect them with screws, and set two connection points, so as to ensure the stability and reliability of the connection, thereby improving the stability of the feeding process.

[0027] Furthermore, in one embodiment of the present invention, the coil supply device 100 also includes a detection component, which is arranged on the main body of the second driving member 2. The main body of the second driving member 2 is used to drive the output end of the second driving member 2 to extend and retract, and the detection component is used to detect the extended length of the output end of the second driving member 2. When the second driving member 2 is a cylinder, the detection component can be set to judge the distance between the second driving member 2 and the bracket 3 by detecting the extended length of the cylinder piston rod, thereby judging the distance between the second pinch wheel 5 and the first pinch wheel 4, so as to ensure that the second pinch wheel 5 and the first pinch wheel 4 have pressed the coil before starting, or after confirming that the distance between the second pinch wheel 5 and the first pinch wheel 4 is large enough, the coil is replaced or installed. At the same time, it can also prevent the cylinder piston rod from being excessively extended or retracted, thereby avoiding damage to the equipment or affecting production. When the second driving member 2 is other driving devices, the detection component can directly detect the distance between the second driving member 2 and the bracket 3.

[0028] Specifically, in one embodiment of the present invention, please refer to Figure 3The detection assembly includes a first position sensor 6 and a second position sensor 7. The first position sensor 6 is located at the end of the main body of the second driving member 2 that is close to the bracket 3, and the second position sensor 7 is located at the end of the main body of the second driving member 2 that is away from the bracket 3. When the second driving member 2 is a pneumatic cylinder, the first position sensor 6 is used to detect whether the cylinder piston rod is fully extended, thereby ensuring that the second pressure roller 5 and the first pressure roller 4 are pressing the coil before starting. The second position sensor 7 is used to detect whether the cylinder piston rod is fully retracted, thereby confirming that the distance between the second pressure roller 5 and the first pressure roller 4 is large enough to allow the coil to be replaced or installed.

[0029] In order to adapt to different scenarios, the first position sensor 6 and the second position sensor 7 can be one of which is movably provided on the main body of the second driving member 2 to move closer to or away from the bracket, or both can be movably provided on the main body of the second driving member 2 to move closer to or away from the bracket. Figure 3 , two mounting grooves 21 extending in the vertical direction are formed on the side of the main body of the second driving member 2 facing away from the first driving mechanism 1. The two mounting grooves 21 are arranged at intervals. The first position sensor 6 can be movably arranged in one mounting groove 21, and the second position sensor 7 can be movably arranged in the other mounting groove 21. When feeding rolls of different sizes, first pressure wheels 4 and second pressure wheels 5 of different sizes may be selected accordingly. In this way, the positions of the first position sensor 6 and the second position sensor 7 relative to the second driving member 2 can be flexibly adjusted to meet actual detection requirements. In addition, the mounting groove 21 is directly provided on the second driving member 2, and there is no need to use other tools to install the first position sensor 6 and the second position sensor 7, which effectively utilizes space and makes the overall device more concise. In other embodiments, only one mounting groove 21 may be provided, and the first position sensor 6 and the second position sensor 7 are arranged in the mounting groove 21 at intervals up and down.

[0030] Furthermore, in an embodiment of the present invention, the coil feeding device 100 includes two second pinch wheels 5. The two second pinch wheels 5 can be arranged in a mirror-symmetrical manner with respect to the first pinch wheel 4, so as to minimize the cost while ensuring feeding stability.

[0031] Specifically, in one embodiment of the present invention, the second drive mechanism includes at least two second drive members 2, each of which is rotatably provided with a second pressure roller 5 at its output end. Each second drive member 2 is used to drive a second pressure roller 5 toward or away from the first pressure roller 4. The number of second drive members 2 can be two, three, four, five, etc., depending on the number of second pressure rollers 5. The second drive members 2 can be arranged side by side or sequentially along the circumference of the outer wall of the first pressure roller 4, depending on actual use requirements. By separately providing a second driving member 2 for each second pinch wheel 5, various types of coil feeding requirements can be met. For example, when three second driving members 2 are provided, the number of corresponding second pinch wheels 5 is also three. In this case, only two second pinch wheels 5 can be controlled to abut against the first pinch wheel 4 at the same time, or three second pinch wheels 5 can be controlled to abut against the first pinch wheel 4 at the same time, thereby obtaining different pinching effects. When only two second pinch wheels 5 abut against the first pinch wheel 4 at the same time, there can also be various situations. For example, taking a total of three second pinch wheels 5 as an example, the first second pinch wheel 5 and the second second pinch wheel 5 can abut against the first pinch wheel 4 at the same time, or the first second pinch wheel 5 and the third second pinch wheel 5 can abut against the first pinch wheel 4 at the same time. The distances and angles between different second pinch wheels 5 are different, and the pinching effects after abutting against the first pinch wheel 4 will also be different. In addition, each second driving member 2 can also be provided with a corresponding bracket 3 to facilitate the installation of the second pinch wheel 5.

[0032] In order to further improve the stability, in one embodiment of the present invention, please refer to Figure 2 A limiting plate 51 is provided at each end of the second pinch wheel 5. In the feeding state, the two limiting plates 51 enclose a limiting space, and the second pinch wheel 5 is located within the limiting space. By providing two limiting plates 51, during the feeding process, due to the abutment between the second pinch wheel 5 and the first pinch wheel 4, part of the structure of the first pinch wheel 4 will also be located within the limiting space, which can ensure that the relative position between the second pinch wheel 5 and the first pinch wheel 4 remains fixed, thus preventing slipping or deviation.

[0033] Specifically, in one embodiment of the present invention, the material of the first pressure wheel 4 and the material of the second pressure wheel 5 are both rubber. Rubber has a high friction coefficient, which helps to create a greater friction force between the first pressure wheel 4 and the second pressure wheel 5 and the coiled material to prevent slipping; rubber also has good elasticity and can be suitable for coils of different thicknesses and hardnesses; in addition, high-quality rubber has good wear resistance and aging resistance, and can maintain performance during long-term use.

[0034] Furthermore, in one embodiment of the present invention, when there are two second pinch rollers 5, the angle between the line connecting the center of the first pinch roller 4 and the center of one second pinch roller 5 and the line connecting the center of the first pinch roller 4 and the center of another second pinch roller 5 is α, 90°≤α≤110°. This angle is determined by the shape and size of the two mounting portions 32, the distance between the two mounting portions 32, and the diameter of the first pinch roller 4 and the second pinch roller 4. Within this angle range, it helps to evenly distribute the contact pressure between the first pinch roller 4 and the two second pinch rollers 5, reducing the local stress of the coil during feeding. If the angle is too small, in the case of horizontal feeding, the force points of the coil will be close together, and they may deviate at the same time; if the angle is too large, the coil may be unevenly stressed, increasing the possibility of deviation and affecting the stability of feeding.

[0035] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A coil material feeding device, characterized in that: The coil feeding device includes a first driving mechanism, a second driving mechanism, a first pinch wheel and at least two second pinch wheels; The first pinch wheel is provided at the output end of the first driving mechanism, the first driving mechanism is used to drive the first pinch wheel to rotate, each of the second pinch wheels is rotatably provided at the output end of the second driving mechanism, the second driving mechanism is used to drive each of the second pinch wheels to move closer to or away from the first pinch wheel; When one of the second pressing wheels abuts against the first pressing wheel, at least another of the second pressing wheels abuts against the first pressing wheel.

2. The coil material feeding device according to claim 1, wherein: The second pressing wheels are sequentially arranged along the circumferential direction of the outer peripheral wall of the first pressing wheel; The second driving mechanism includes a second driving member and a bracket. The bracket is arranged at the output end of the second driving member. Each second pinch wheel is arranged on the bracket. The second driving member drives the bracket to approach or move away from the first pinch wheel to drive each second pinch wheel to approach or move away from the first pinch wheel.

3. The coil material supply device according to claim 2, characterized in that: The bracket includes a base and at least two mounting parts arranged on the base. The base is arranged at the output end of the second driving member. Each of the mounting parts is provided with a positioning shaft, and each of the positioning shaft sleeves is provided with a second pressure wheel.

4. The coil material supply device according to claim 2, wherein: The bracket is detachably connected to the second driving member.

5. The coil material feeding device according to claim 2, wherein: The first driving mechanism is a stepping motor; and / or The second driving member is a cylinder.

6. The coil material supply device according to claim 2, wherein: The coil supply device also includes a detection component, which is arranged on the main body of the second driving member. The main body of the second driving member is used to drive the output end of the second driving member to extend and retract, and the detection component is used to detect the extended length of the output end of the second driving member.

7. The coil material supply device according to claim 6, characterized in that: The detection component includes a first position sensor and a second position sensor. The first position sensor is movably arranged at one end of the second driving member's body close to the bracket, and the second position sensor is movably arranged at one end of the second driving member's body away from the bracket.

8. The coil material supply device according to claim 1, wherein: The coil material supply device includes two second pinch wheels.

9. The coil material supply device according to claim 1, wherein: The second driving mechanism includes at least two second driving members, and an output end of each second driving member is rotatably provided with a second pinch wheel, and each second driving member is used to drive a second pinch wheel to approach or move away from the first pinch wheel.

10. The coil material feeding device according to any one of claims 1 to 9, characterized in that: A limiting plate is provided at both ends of the second pressing wheel. The two limiting plates enclose a limiting space, and the second pressing wheel is located in the limiting space.

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