A paint stripping knife structure assembly

Abstract

The utility model provides a kind of paint stripping knife structure assembly, including rotating shaft, the one end of rotating shaft is equipped with tool rest cover, the tool rest cover includes fixed base, swing knife, fixed cover and adjusting ring, the peripheral wall of fixed base is equipped with the multiple installation grooves being set around rotating shaft, swing knife is movably connected in the installation groove;The fixed base includes fixed part and adjusting part, the hinged hole that is communicated with the installation groove is equipped in the fixed part, the hinged hole is equipped with the hinged axle that is penetrated swing knife;The adjusting ring is screw-connected in the outer periphery of adjusting part;The end surface of fixed part is equipped with the notch being communicated with the hinged hole, at least part of the hinged axle is extended outward and is limited to abut with fixed cover by passing through the notch;By being equipped with the notch being communicated with the hinged hole on fixed part, fixed part and fixed cover can be compacted hinged axle jointly, effectively improve the use stability of hinged axle and improve paint stripping precision.

Description

Technical Field

[0001] This utility model belongs to the technical field of winding machine, specifically relating to a paint stripping knife structure assembly. Background Technology

[0002] In the field of winding machine technology, wire stripping is a key pretreatment process. Enameled wire is usually composed of a conductor (such as copper or aluminum) covered with an insulating varnish layer. In the process of assembling and connecting electronic components, it is necessary to remove the insulating varnish layer at the end of the enameled wire for soldering operations. Currently, centrifugal stripping technology is widely used in the wire stripping process. Centrifugal stripping equipment mainly uses the centrifugal force generated by high-speed rotation to make the enameled wire interact with the centrifugally oscillating stripping blade in a specific stripping chamber, thereby peeling off the insulating varnish layer.

[0003] However, existing centrifugal stripping equipment can only effectively strip enameled wires with a single fixed diameter. Once the diameter of the enameled wire changes, the distance between the blades in each stripping blade must be readjusted. The adjustment process is cumbersome, time-consuming, and difficult, making it difficult to quickly adapt to the stripping needs of enameled wires with different diameters.

[0004] Meanwhile, existing centrifugal paint stripping equipment has a complex structure and is difficult to assemble. The centrifugal oscillation accuracy of the paint stripping blade is also relatively low, resulting in poor paint stripping quality and failing to meet the current high-precision paint stripping requirements. Utility Model Content

[0005] (1) Technical problems to be solved

[0006] This utility model provides a paint stripping knife assembly, which aims to solve the problems of existing paint stripping equipment having a complex structure, being unable to meet the rapid adjustment of different wire diameters, and having low swing accuracy of the paint stripping knife.

[0007] (2) Technical solution

[0008] This utility model provides a paint stripper assembly, including a rotating shaft with a wire hole inside. One end of the rotating shaft has a blade holder sleeve, which includes a fixed base, a swing blade, a fixed cover, and an adjusting ring. The fixed base has multiple mounting grooves around the rotating shaft on its peripheral wall, and the swing blade is movably connected to one of the mounting grooves. The fixed base includes a fixed part and an adjusting part. The fixed part has a hinge hole communicating with the mounting grooves, and a hinge shaft penetrating the swing blade is located within the hinge hole. The adjusting ring is threaded to the outer periphery of the adjusting part to limit the swing amplitude of the swing blade.

[0009] The fixing cover is detachably connected to the end of the fixing part. The end face of the fixing part is provided with a notch communicating with the hinge hole. At least a portion of the hinge shaft extends outward through the notch and abuts against the fixing cover. The gap width S of the notch is less than the maximum gap distance D of the hinge hole.

[0010] Furthermore, the hinge hole extends to the peripheral wall of the fixing part, and the fixing cover is provided with an annular side plate corresponding to the peripheral wall of the fixing part to cover the hinge hole.

[0011] Furthermore, the fixing cover and the fixing part are connected by screws.

[0012] Furthermore, the swing knife includes a handle and a blade head, with the blade head inserted into the end of the handle and secured by screws.

[0013] Furthermore, the knife handle includes a swinging part and a rotating part, and a connection point is provided between the swinging part and the rotating part. The cross-sectional area of ​​the connection point is smaller than the cross-sectional area of ​​the swinging part or the rotating part.

[0014] Furthermore, there are two adjusting rings, which are arranged along the length of the rotation axis.

[0015] Furthermore, a bracket is also fitted onto the rotating shaft, and the bracket is connected to the rotating shaft via a bearing.

[0016] Furthermore, a support block is provided between the bracket and the fixed base, and is sleeved on the rotating shaft. The support block and the rotating shaft are connected by a bearing.

[0017] Furthermore, a groove is provided on one side of the bracket, and one end of the support block is fixedly fitted into the groove.

[0018] Furthermore, the rotating shaft comprises an inner shaft and an outer shaft from the inside out, the wire hole is disposed in the inner shaft, and a drive gear is provided on the peripheral wall of the outer shaft.

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

[0020] The overall structure of this utility model is simple and easy to assemble. By setting a notch on the fixing part that communicates with the hinge hole, the fixing part and the fixing cover can jointly press and fix the hinge shaft, which effectively improves the stability of the hinge shaft and the paint stripping accuracy. At the same time, the setting of double adjustment rings improves the swing limit effect of the swing knife and the convenience of adjusting the knife head. Attached Figure Description

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

[0022] Figure 2 This is an exploded view of the entire utility model.

[0023] Figure 3 This is a schematic diagram of the tool holder sleeve structure of this utility model.

[0024] Figure 4 This is an exploded view of the tool holder sleeve of this utility model.

[0025] Figure 5 This is a schematic diagram of the swing blade structure of this utility model.

[0026] Figure 6 This is a schematic diagram of the R-angle structure of this utility model.

[0027] Figure 7 This is an overall sectional view of the present invention.

[0028] Figure 8 This is a schematic diagram of the rotating paint peeling process of this utility model.

[0029] Figure 9 This is a schematic diagram of the hinge shaft installation of this utility model.

[0030] Figure 10 Schematic diagram of the hinge shaft fixing of this utility model Figure 1 .

[0031] Figure 11 Schematic diagram of the hinge shaft fixing of this utility model Figure 2 .

[0032] Figure 12 This is a schematic diagram of the notch structure of this utility model.

[0033] Figure 13 This is a diagram showing the usage state of the adjustment ring of this utility model.

[0034] Figure 14 This is a schematic diagram of the support structure of this utility model.

[0035] Figure 15 This is a cross-sectional view of the bracket of this utility model.

[0036] Figure label:

[0037] 1. Rotating shaft; 11. Inner shaft; 111. Wire hole; 12. Outer shaft; 121. Drive gear; 2. Fixed seat; 21. Fixed part; 211. Hinge hole; 212. Hinge shaft; 2121. Cutting surface; 213. Notch; 22. Adjusting part; 23. Mounting groove; 24. Adjusting ring; 3. Swinging knife; 31. Tool holder; 311. Swinging part; 312. Rotating part; 313. Connection point; 32. Tool head; 321. Tool face; 322. R angle; 4. Fixed cover; 41. Connection hole; 42. Swinging groove; 43. Side plate; 5. Screw; 6. Bracket; 61. Support block; 62. Groove; 63. Horizontal block; 64. Vertical block; 65. Oil cavity; 66. Sealing cover; 7. Bearing; 8. Tool holder sleeve. Detailed Implementation

[0038] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0039] like Figure 1-8 As shown, this utility model provides a paint stripper assembly, including a rotating shaft 1. The rotating shaft 1 has a wire hole 111 for threading enameled wire. One end of the rotating shaft 1 is detachably connected to a blade holder sleeve 8. The blade holder sleeve 8 includes a fixed base 2, a swing blade 3, and an adjusting ring 24. The outer peripheral wall of the fixed base 2 has multiple mounting grooves 23 arranged around the rotating shaft 1. The swing blade 3 is movably connected to the mounting grooves 23. The fixed base 2 includes a fixing part 21 and an adjusting part 22. The fixing part 21 is located on the side near the wire outlet end. The fixing part 21 has a hinge hole 211 communicating with the mounting groove 23. The hinge hole 211 has a hinge shaft 212 penetrating the swing blade 3. The swing blade 3 is hinged to the mounting groove 23 by the hinge shaft 212, realizing lever-type swing. The adjusting ring 24 is threaded to the outer peripheral wall of the adjusting part 22 to limit the swing amplitude of the swing blade 3.

[0040] like Figure 5-6 As shown, the swing blade 3 includes a handle 31 and a blade head 32. The blade head 32 is inserted into the end of the handle 31 and is fixed by a screw 5. During installation, the tightness of the screw 5 can be adjusted to adjust the distance between the blade head 32 and the enameled wire. That is, when the diameter of the enameled wire is large, the distance between the blade head 32 and the enameled wire can be increased to prevent the blade head 32 from scratching the conductor inside the insulating varnish layer, thereby adapting to enameled wires of different diameters.

[0041] Furthermore, the output end of the cutter head 32 is also provided with two cutting surfaces 321, which form an R-angle 322. The size of the R-angle 322 determines the diameter range of the enameled wire that the cutter head 32 can "bite." That is, the smaller the R-angle 322, the sharper the output end of the cutter head 32, and the narrower the contact surface with the enameled wire, making it suitable for stripping the enamel from small-diameter enameled wires; while the larger the R-angle 322, the more rounded the output end of the cutter head 32. The contact surface is wider, making it suitable for stripping the enamel from large-diameter enameled wires. During stripping, the output end of the cutter head 32 presses into the enameled wire. At this time, the radius of curvature (R) 322 must match the wire diameter to just cut through the enamel layer without damaging the internal conductor. In practical applications, a cutter head 32 with an R angle of 0.05mm can be used for thinner enameled wires, while a cutter head 32 with an R angle of 0.15mm can be used for stripping thicker enameled wires.

[0042] The handle 31 includes an integrally formed swing part 311 and a rotating part 312. The blade head 32 is disposed on the rotating part 312. The rotating part 312 is rotatably connected to the fixed part 21 through the hinge shaft 212. The swing part 311 extends toward the wire inlet end.

[0043] In use, the enameled wire is threaded through the wire hole 111, and then the rotating shaft 1 is driven to drive the fixed base 2 to rotate at high speed around the enameled wire. Under the action of centrifugal force and the hinge shaft 212, the swinging parts 311 of each swinging blade 3 separate from each other and swing outward, while each blade head 32 gathers together under the action of leverage and cuts the insulating varnish layer of the enameled wire, thereby realizing the varnish stripping process. At the same time, during the outward swinging process of the swinging part 311, it will abut against the adjusting ring 24 to limit the swinging amplitude of the swinging part 311, thereby limiting the gathering amplitude of each blade head 32 to ensure the consistency of the varnish stripping depth and the stability of the varnish stripping.

[0044] Preferably, in order to further improve the centrifugal swing force of the swing blade 3, a connection point 313 is provided between the swing part 311 and the rotating part 312. The cross-sectional area of ​​the connection point 313 is smaller than that of the swing part 311 or the rotating part 312. This makes the overall structure of the swing blade 3 more material-efficient, while the main weight is concentrated in the swing part 311 and the rotating part 312. Since the hinge is located on the rotating part 312, the distance between the end of the swing part 311 near the wire inlet and the hinge is much greater than the distance between the end of the rotating part 312 near the wire outlet and the hinge. Therefore, the centrifugal swing of the swing blade 3 can be easily achieved even when the rotation speed of the rotating shaft 1 is not fast, effectively reducing the driving cost of the rotation.

[0045] In practical applications, such as Figure 9-12 As shown, the installation stability of the hinge shaft 212 significantly affects the swing stability of the swing blade 3. If the hinge shaft 212 shakes under centrifugal force, the paint peeling of the blade head 32 will be too deep or too shallow, resulting in a reduction in paint peeling quality. To effectively solve this technical problem, in this embodiment, the blade holder sleeve 8 further includes a fixing cover 4. The fixing cover 4 is detachably connected to the end of the fixing part 21. The fixing cover 4 is provided with a connection hole 41 corresponding to the rotating shaft 1 and a swing groove 42 corresponding to the swing blade 3, so that at least a portion of the swing blade 3 can extend through the swing groove 42 toward the wire outlet and swing within the swing groove 42. The end face of the fixing part 21 is provided with a notch 213 communicating with the hinge hole 211, so that at least a portion of the hinge shaft 212 can extend outward through the notch 213 and be limited and abutted against the fixing cover 4.

[0046] During installation, the hinge shaft 212 is passed through the swing blade 3 and inserted into the hinge hole 211. At this time, at least a portion of the hinge shaft 212 extends outward through the notch 213. Then, the fixing cover 4 is pressed against the end face of the fixing part 21 near the outlet end and tightened with screws 5. This allows the fixing part 21 and the fixing cover 4 to jointly press and fix the hinge shaft 212, effectively limiting the shaking of the hinge shaft 212 and improving the centrifugal stability of the hinge shaft 212.

[0047] In another embodiment, such as Figure 11 As shown, the portion of the hinge shaft 212 that passes through the notch 213 may also be provided with a cut surface 2121. By providing the cut surface 2121, the cut surface 2121 can fully abut and fix with the fixing cover 4, increasing the contact area and further improving the installation stability of the hinge shaft 212.

[0048] Preferably, the hinge shaft 212 can be configured as a cylinder, a triangular prism, or a polygonal prism, and the shape of the hinge hole 211 is adapted to the hinge shaft 212; for example... Figure 12 As shown, the gap width S of the notch 213 is less than the maximum gap distance D of the hinge hole 211, so that the hinge shaft 212 cannot disengage from the notch 213;

[0049] Furthermore, the hinge hole 211 extends to the peripheral wall of the fixing part 21. When installing the hinge shaft 212, the hinge shaft 212 can be inserted into the fixing part 21 through the hinge hole 211 on the peripheral wall of the fixing part 21, making installation more convenient. At the same time, the peripheral wall of the fixing cover 4 is also provided with an annular side plate 43 corresponding to the peripheral wall of the fixing part 21, so that the fixing cover 4 can cover the end of the fixing part 21 and wrap around part of the peripheral wall of the fixing part 21 to cover the hinge hole 211 and prevent the hinge shaft 212 from falling off.

[0050] Specifically, such as Figure 13 As shown, in this embodiment, two adjusting rings 24 are provided and arranged along the length direction of the fixed base 2. In use, the two adjusting rings 24 can abut against each other. Figure 13 (as shown in a) thus ensuring the limiting stability of the adjusting ring 24 and preventing displacement under high-speed rotation; at the same time, the two adjusting rings 24 can also be separated from each other ( Figure 13 As shown in b) and respectively, the swinging part 311 and the rotating part 312 are respectively limited and abutted, so as to realize the positioning adjustment of the swinging position of the swinging knife 3. That is to say, by rotating the two adjusting rings 24 respectively, when the rotating shaft 1 is not rotated, the swinging part 311 and the rotating part 312 are respectively abutted against the two adjusting rings 24, thereby fixing the position of the swinging knife 3 to simulate the position of centrifugal swinging. Then the installation position of the knife head 32 is adjusted, which improves the convenience and accuracy of adjusting the swinging amplitude of the swinging knife 3.

[0051] Specifically, such as Figure 14-15 As shown, a bracket 6 is also fitted on the rotating shaft 1, and the bracket 6 is connected to the rotating shaft 1 through a bearing 7. The bracket 6 allows the paint stripper structure to be installed on different winding mechanisms, effectively improving the ease of installation and use of the paint stripper structure. In this embodiment, the bracket 6 has an "n" shaped structure, including a horizontal block 63 and vertical blocks 64 that connect the two ends of the horizontal block 63. The rotating shaft 1 passes through the two vertical blocks 64 in sequence and is connected through the bearing 7. The horizontal block 63 is used to connect with other winding machine equipment. The secondary fixation of the two vertical blocks 64 further improves the connection stability between the rotating shaft 1 and the bracket 6.

[0052] Furthermore, a support block 61 is provided between the bracket 6 and the fixed seat 2, and is sleeved on the rotating shaft 1. The support block 61 is cylindrical and extends along the length of the rotating shaft 1. The support block 61 and the outer periphery of the rotating shaft 1 form an oil cavity 65. The oil cavity 65 is provided with a bearing 7 and filled with lubricating oil. An annular cover 66 is provided on the side of the oil cavity 65 near the tool holder sleeve 8. The cover 66 effectively ensures the sealing of the oil cavity 65 and prevents dust or paint debris generated during paint stripping from entering the oil cavity 65 and affecting the rotation of the rotating shaft 1. At the same time, the support block 61 provides more fixing points for the rotating shaft 1, further ensuring the rotational stability of the rotating shaft 1.

[0053] Preferably, a groove 62 is provided on one side of the bracket 6, and one end of the support block 61 is fixedly fitted into the groove 62, so that the bracket 6 and the support block 61 form a stable integrated detachable structure, thereby improving the rotational stability of the rotating shaft 1.

[0054] Specifically, such as Figure 7 As shown, to improve the installation flexibility of different wire diameters, the rotating shaft 1 includes an inner shaft 11 and an outer shaft 12 from the inside to the outside. The inner shaft 11 is disposed inside the outer shaft 12, and the wire hole 111 is disposed inside the inner shaft 11. In practical applications, to avoid the inability of different wire diameters of enameled wire to fit the single-size wire hole 111 during the stripping process, the inner shaft 11 can be replaced. Different inner shafts 11 can be provided with wire holes 111 of different sizes to accommodate different wire diameters of enameled wire. Preferably, a drive gear 121 is provided on the peripheral wall of the outer shaft 12 to realize the effective rotation of the outer shaft 12.

[0055] The following is a detailed explanation of the working principle of this utility model;

[0056] When installing the swing blade 3, first place the swing blade 3 in the mounting groove 23, then pass the hinge shaft 212 through the hinge hole 211 and pass through the swing blade 3 and the mounting groove 23 in sequence, then put the fixing cover 4 on the end of the fixing part 21 and fix it with screws 5 so that the fixing part 21 and the fixing cover 4 together press and fix the hinge shaft 212.

[0057] In use, the drive gear 121 drives the rotating shaft 1 to rotate at high speed. The swing blade 3 swings under the action of centrifugal force and hinge, so that the swing part 311 of the swing blade 3 swings outward and abuts against the adjustment ring 24. Meanwhile, the rotating part 312 and the blade head 32 of the swing blade 3 come together to cut the enameled wire in a limited manner.

[0058] The innovation of this utility model lies in its simple overall structure and convenient assembly. By setting a notch on the fixing part that communicates with the hinge hole, the fixing part and the fixing cover can jointly press and fix the hinge shaft, which effectively improves the stability of the hinge shaft and the paint stripping accuracy. At the same time, the setting of double adjustment rings improves the swing limit effect of the swing knife and the convenience of adjusting the knife head.

[0059] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other implementations that can be understood by those skilled in the art.

[0060] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A paint stripper assembly, characterized in that, The device includes a rotating shaft (1) with a wire hole (111) inside. One end of the rotating shaft (1) is provided with a tool holder sleeve (8). The tool holder sleeve (8) includes a fixed base (2), a swinging blade (3), a fixed cover (4), and an adjusting ring (24). The peripheral wall of the fixed base (2) is provided with multiple mounting grooves (23) arranged around the rotating shaft (1). The swinging blade (3) is movably connected in the mounting grooves (23). The fixed base (2) includes a fixed part (21) and an adjusting part (22). The fixed part (21) is provided with a hinge hole (211) communicating with the mounting groove (23). The hinge hole (211) is provided with a hinge shaft (212) that passes through the swinging blade (3). The adjusting ring (24) is threaded to the outer periphery of the adjusting part (22) to limit the swing amplitude of the swinging blade (3). The fixing cover (4) is detachably connected to the end of the fixing part (21). The end face of the fixing part (21) is provided with a notch (213) communicating with the hinge hole (211). At least a portion of the hinge shaft (212) extends outward through the notch (213) and is limited and abuts against the fixing cover (4). The gap width S of the notch (213) is less than the maximum gap distance D of the hinge hole (211).

2. The paint stripper assembly according to claim 1, characterized in that, The hinge hole (211) extends to the peripheral wall of the fixing part (21), and the fixing cover (4) is provided with an annular side plate (43) corresponding to the peripheral wall of the fixing part (21) to cover the hinge hole (211).

3. The paint stripper assembly according to claim 2, characterized in that, The fixing cover (4) and the fixing part (21) are connected by screws (5).

4. The paint stripper assembly according to claim 1, characterized in that, The swing knife (3) includes a handle (31) and a blade (32), the blade (32) being inserted into the end of the handle (31) and fixed by a screw (5).

5. The paint stripper assembly according to claim 4, characterized in that, The handle (31) includes a swing part (311) and a rotating part (312), and a connection point (313) is provided between the swing part (311) and the rotating part (312). The cross-sectional area of ​​the connection point (313) is smaller than the cross-sectional area of ​​the swing part (311) or the rotating part (312).

6. The paint stripper assembly according to claim 5, characterized in that, Two adjustment rings (24) are provided, and the two adjustment rings (24) are arranged along the length direction of the rotation axis (1).

7. The paint stripper assembly according to claim 1, characterized in that, A bracket (6) is also fitted on the rotating shaft (1), and the bracket (6) is connected to the rotating shaft (1) by a bearing (7).

8. The paint stripper assembly according to claim 7, characterized in that, A support block (61) is provided between the bracket (6) and the fixed seat (2) and is sleeved on the rotating shaft (1). The support block (61) and the rotating shaft (1) are connected by a bearing (7).

9. The paint stripper assembly according to claim 8, characterized in that, The bracket (6) has a groove (62) on one side, and one end of the support block (61) is fixedly fitted into the groove (62).

10. The paint stripper assembly according to claim 1, characterized in that, The rotating shaft (1) includes an inner shaft (11) and an outer shaft (12) from the inside to the outside. The wire hole (111) is located inside the inner shaft (11), and a drive gear (121) is provided on the peripheral wall of the outer shaft (12).

Images