Paper clamping device and winding machine

Abstract

The paper clamping device comprises a main body, a pair of clamping jaws and an abutting part, the main body is connected with a driving mechanism, and the pair of clamping jaws are rotatably installed on the two opposite sides of the main body respectively. The pair of clamping jaws comprises a first end part close to the paper and a second end part far away from the paper, an elastic piece is connected between the second end part, and the elastic piece is set to be in a stretching state in a default state so as to drive the first end part to be in an outward expanding state; the abutting part is slidably mounted on the body and comprises a first abutting end close to paper and a second abutting end away from the paper, the first abutting end is suitable for abutting against the iron core assembly, and the second abutting end is arranged to be capable of opening the second ends of the pair of clamping jaws under driving of the driving mechanism so as to drive the first ends to be in a folded state. According to the device, the angle of the paper is fixed at a certain angle, the paper displacement condition in the winding process is avoided, and the product quality is guaranteed. The utility model further provides a winding machine.

Description

Technical Field

[0001] The utility model relates to the field of production and processing of motor stators, and specifically to a paper clamping device. Background Art

[0002] During the production and processing of motor stators, insulating paper needs to be fixed to the core assembly before winding. The current processing method is usually: 1) Open the cardboard box, take out the single-tooth core, and place it in the processing area; 2) Remove the black insulating frame from the packaging bag and install it on both ends of the single-tooth core; the width of the black insulating frame is consistent with the width of the single-tooth core to ensure that the insulating paper is adhered to the insulating frame and the plane of the single-tooth core is consistent, so that the wires are neatly arranged during winding; 3) Use double-sided tape to stick the insulating paper on both sides of the single-tooth core; 4) Install the pre-assembled single-tooth core on the clamping chuck of the winding machine; 5) After the clamping chuck clamps the single-tooth core, the corresponding opposite top tooling supports the single-tooth core; 6) The winding device is wound in a loop, and so on, for a cyclic processing operation.

[0003] This operation has the following problems: the folding curvature of the insulating paper is easy to deform, and the double-sided tape has low adhesion after being pasted to the iron core, which makes it easy for the insulating paper to shift during winding, causing part of the coil to be wound outside the insulating paper. Therefore, product quality cannot be guaranteed, the scrap cost is high, and production efficiency is low. Utility Model Content

[0004] In view of this, the present invention proposes a paper clamping device to at least solve the above problems.

[0005] According to an embodiment of the present invention, a paper clamping device is used to fix paper placed in an iron core assembly, and includes a main body, a pair of clamping jaws and a supporting portion, wherein the main body is connected to a driving mechanism, and the pair of clamping jaws are rotatably mounted on opposite sides of the main body; the pair of clamping jaws include a first end close to the paper and a second end away from the paper, an elastic member is connected between the second ends, and the elastic member is configured to be in a stretched state in a default state to drive the first end to be in an outwardly stretched state; the supporting portion can be slidably mounted on the main body, and includes a first supporting end close to the paper and a second supporting end away from the paper, the first supporting end is suitable for supporting the iron core assembly, and the second supporting end is configured to be able to open the second end of the pair of clamping jaws under the drive of the driving mechanism to drive the first end to be in a retracted state.

[0006] Furthermore, the driving mechanism includes a driving rod connected to the main body, and a wire rod connected to the driving rod.

[0007] Furthermore, the elastic member is a spring.

[0008] Furthermore, the pair of clamping jaws includes a third end portion located between the first end portion and the second end portion, and the third end portion is connected to the main body via a connecting member.

[0009] Furthermore, the main body includes a slide groove, and the supporting portion includes a first end plate slidably inserted in the slide groove and a second end plate extending from the first end plate in a direction away from the paper, the first supporting end is the end of the first end plate close to the paper, and the second supporting end is the end of the second end plate close to the elastic member.

[0010] Furthermore, the second end plate is configured as a V-shaped structure.

[0011] Furthermore, any one of the pair of jaws includes a first end portion symmetrically arranged above and below, a second end portion symmetrically arranged above and below, and a third end portion symmetrically arranged above and below, and the elastic member includes a first elastic member located between the second end portions above and a second elastic member located between the second end portions below.

[0012] Furthermore, the supporting portion includes two second end plates that are symmetrical in the upper and lower directions.

[0013] According to another aspect of the present invention, a winding machine is provided, comprising the paper clamping device of the above embodiment, wherein the core assembly is clamped on one side of the abutting portion close to the paper clamping device by a clamping mechanism.

[0014] It can be seen from the above technical scheme that according to the paper clamping device and winding machine of the embodiment of the present utility model, the paper clamping device includes a main body, a pair of clamping claws and a supporting part, the supporting part has a first supporting end for supporting on the iron core assembly, the pair of clamping claws can be rotatably fixed on the main body, and an elastic member is provided at the second end away from the paper, and the elastic member is in a stretched state in the default state, so that the first end for clamping paper is in an open state in the default state; the second supporting end of the supporting part away from the paper moves relative to the main body under the drive mechanism, and then stretches the second end of the pair of clamping claws to make the first end in a folded state, thereby fixing the corner of the paper at a certain angle, avoiding the occurrence of paper displacement during the winding process, and ensuring product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so that those skilled in the art will have a clearer understanding of the above and other features and advantages of the present invention. In the accompanying drawings:

[0016] Figure 1 This is a schematic diagram of a top view of a paper clamping device according to an embodiment of the present invention when no paper is fixed;

[0017] Figure 2 This is an exploded view of the structure of a paper clamping device according to one embodiment of the present invention;

[0018] Figure 3 This is a schematic diagram of a paper clamping device according to an embodiment of the present invention in a top view when fixing paper;

[0019] The accompanying drawings are numerals as follows:

[0020] 1 Main body 2 Driving mechanism 3 Clamping jaw 31 First end

[0021] 32 second end portion 33 third end portion 40 elastic member 61 first end plate 62 second end plate 100 paper clamping device 200 iron core assembly 300 clamping mechanism DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is further described in detail with reference to the following embodiments.

[0023] Figure 1 This is a schematic diagram of a top view of a paper clamping device according to an embodiment of the present invention when no paper is clamped; Figure 2 This is an exploded view of the structure of a paper clamping device according to one embodiment of the present invention;

[0024] like Figure 1 As shown in the figure, the left side shows the core assembly 200 with insulating paper attached, and the clamping mechanism 300 used to secure the core assembly 200. The insulating paper is attached to the side of the core assembly 200, forming two outward-expanding ends (c and d, respectively, when viewed from above). In the prior art, these two ends cannot be fixed, resulting in the paper easily shifting during the winding process, causing part of the coil to be wound outside the insulating paper. Therefore, a paper clamping device 100 is provided on the right side of the core assembly 200 to secure the two ends c and d of the paper on the right side, ensuring a stable position of the paper during the winding process.

[0025] like Figure 2 As shown, the paper clamping device 100 includes a main body 1, a pair of clamping jaws 3 and a supporting portion, and the main body 1 is connected to the driving mechanism 2; the pair of clamping jaws 3 are rotatably mounted on opposite sides of the main body 1; the pair of clamping jaws 3 include a first end 31 close to the paper and a second end 32 away from the paper, and an elastic member is connected between the second end 32, and the elastic member is set to be in a stretched state in the default state to drive the first end 31 to be in an outward state; the supporting portion can be slidably inserted in the slide groove, including a first supporting end close to the paper and a second supporting end away from the paper, the first supporting end is suitable for supporting the iron core assembly 200, and the second supporting end is set to be able to open the second end 32 of the pair of clamping jaws 3 under the drive of the driving rod to drive the first end 31 to be in a retracted state.

[0026] Based on the paper clamping device 100 of this embodiment, a main body 1 is provided. The main body 1 can be moved horizontally by a driving mechanism 2 connected thereto. A pair of clamping jaws 3 and a supporting portion are respectively provided on the main body 1. The supporting portion supports the core assembly 200 through its first supporting end. The second end 32 of the pair of clamping jaws 3 is installed with an elastic member whose default state is a stretched state. In this way, in the default state, the first end 31 of the pair of clamping jaws 3 close to the paper is in an outward state under the action of the elastic member 40 and cannot fix the paper. When the main body 1 is driven by the driving mechanism 2 to move in the direction close to the paper, the second supporting end of the supporting portion can move relative to the main body 1 in the direction of the elastic member 40 to open the second end 32 of the pair of clamping jaws 3, so that the first end 31 of the pair of clamping jaws 3 is in a retracted state, thereby fixing the paper in the gap between it and the main body 1 to ensure that it will not move at will. It should be noted that there is no need for the first end 31 to be strictly in contact with the main body 1. The fixing of the angle of the paper can be achieved mainly by the state in which the first end 31 is close to the main body 1, thereby preventing the wire from being wound around the outside of the paper during winding. Yes

[0027] Furthermore, the elastic member is a spring, and the operator can obtain the elastic coefficient of the spring through testing according to actual conditions.

[0028] Furthermore, the driving mechanism 2 includes a driving rod connected to the main body 1 and a wire rod connected to the driving rod.

[0029] Furthermore, the pair of clamping jaws 3 includes a third end portion 33 located between the first end portion 31 and the second end portion 32. The third end portion 33 is connected to the main body 1 via a connector. Specifically, positioning holes for vertical positioning and fixing holes for horizontal fixing (not shown) are respectively formed on both sides of the main body 1 to enable quick installation of the pair of clamping jaws 3.

[0030] Furthermore, the main body 1 includes a slide slot, and the abutting portion includes a first end plate 61 slidably inserted into the slide slot and a second end plate 62 extending from the first end plate 61 in a direction away from the paper. The first abutting end is the end of the first end plate 61 close to the paper, and the second abutting end is the end of the second end plate 62 close to the elastic member 40. Based on this structure, the abutting portion is slidably mounted on the main body 1, with the first end plate 61 abutting the core assembly 200, and the second end plate 62 displacing the second ends 32 of the pair of jaws 3.

[0031] Based on the above embodiment, the second end plate 62 is configured as a V-shaped structure.

[0032] Figure 3 FIG. 1 is a schematic diagram of a paper clamping device according to an embodiment of the present invention when fixing paper in a top view; FIG. Figure 3As shown, when the driving mechanism 2 drives the main body 1 to move toward the paper, the two sharp corners of the V-shaped structure and the side walls next to the second ends 32 of the pair of clamping jaws 3 move relative to each other until the two sharp corners each reach the clamping point of the second end 32, so that the first ends 31 of the pair of clamping jaws 3 approach each other and each fits or almost fits against the side wall of the main body 1, so as to fix the corner of the paper at a certain angle.

[0033] Furthermore, each of the pair of clamping jaws 3 includes a vertically symmetrical first end 31, a vertically symmetrical second end 32, and a vertically symmetrical third end 33. The elastic member 40 includes a first elastic member 40 positioned between the upper second ends 32 and a second elastic member 40 positioned between the lower second ends 32. Based on this embodiment, the main body 1 has a certain height, and accordingly, the pair of clamping jaws 3 also have a matching height, so that they include vertically symmetrical first ends 31, second ends 32, and third ends 33, as well as vertically symmetrical first and second elastic members, thereby securing the upper and lower corners of the right paper.

[0034] Furthermore, the supporting portion includes two symmetrical second end plates 62. The two symmetrical second end plates 62 cooperate with the first end 31, the second end 32, the third end 33, the first elastic member, and the second elastic member to achieve symmetrical and stable fixation of the insulating paper.

[0035] According to another aspect of the present invention, a winding machine is provided, comprising the paper clamping device 100 according to the above embodiment, wherein the core assembly 200 is clamped by a clamping mechanism 300 on one side near the abutting portion of the paper clamping device 100. With this winding machine, automatic clamping and winding of the core assembly 200 is achieved, while improving the winding quality.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A paper clamping device (100) for fixing paper placed in an iron core assembly (200), characterized in that: include: A main body (1), wherein the main body (1) is connected to a driving mechanism (2); A pair of clamping jaws (3), the pair of clamping jaws (3) being rotatably mounted on opposite sides of the main body (1); the pair of clamping jaws (3) comprising a first end portion (31) close to the paper and a second end portion (32) away from the paper, an elastic member being connected between the second end portions (32), the elastic member being configured to be in a stretched state in a default state so as to drive the first end portion (31) to be in an outwardly stretched state; A supporting portion is slidably mounted on the main body (1), comprising a first supporting end close to the paper and a second supporting end away from the paper, wherein the first supporting end is suitable for supporting the core assembly (200), and the second supporting end is configured to be able to open the second end portion (32) of the pair of clamping jaws (3) under the drive of the driving mechanism (2) to drive the first end portion (31) to be in a retracted state.

2. The paper clamping device (100) according to claim 1, characterized in that: The driving mechanism (2) comprises a driving rod connected to the main body (1), and a threaded rod connected to the driving rod.

3. The paper clamping device (100) according to claim 1, characterized in that: The elastic member is a spring.

4. The paper clamping device (100) according to any one of claims 1 to 3, characterized in that: The pair of clamping jaws (3) includes a third end portion (33) located between the first end portion (31) and the second end portion (32), and the third end portion (33) is connected to the main body (1) through a connecting member.

5. The paper clamping device (100) according to claim 4, characterized in that: The main body (1) includes a slide groove, and the abutting portion includes a first end plate (61) slidably inserted in the slide groove and a second end plate (62) extending from the first end plate (61) in a direction away from the paper, the first abutting end is the end of the first end plate (61) close to the paper, and the second abutting end is the end of the second end plate (62) close to the elastic member (40).

6. The paper clamping device (100) according to claim 5, characterized in that: The second end plate (62) is configured as a V-shaped structure.

7. The paper clamping device (100) according to claim 5 or 6, characterized in that: Any one of the pair of clamping jaws (3) comprises a first end portion (31) symmetrically arranged above and below, a second end portion (32) symmetrically arranged above and below, and a third end portion (33) symmetrically arranged above and below, and the elastic member (40) comprises a first elastic member located between the second end portions (32) above and a second elastic member located between the second end portions (32) below.

8. The paper clamping device (100) according to claim 7, characterized in that: The supporting portion comprises two second end plates (62) that are symmetrical in upper and lower directions.

9. A winding machine, characterized in that, The invention comprises a paper clamping device (100) according to any one of claims 1 to 8, wherein the core assembly (200) is clamped on one side of the abutting portion close to the paper clamping device (100) by a clamping mechanism (300).

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