An asymmetrical blade ultrasonic cutting tool for cutting tire rubber

Abstract

This invention relates to the field of ultrasonic cutting tool technology, and discloses an asymmetrical ultrasonic cutting tool for cutting tire rubber. The tool includes an ultrasonic tool body, which is composed of a blade body and a cutting edge. One side of the cutting edge extends vertically downwards along the centerline of the ultrasonic tool body, with one side being a vertical surface and the other a bevel. A recessed groove is formed at the center of the top of the ultrasonic tool body, and a gravity leveling structure is installed within the groove. A slot is provided at the top of the gravity leveling structure, into which a connecting pin is inserted. This invention addresses the cutting requirements of tire rubber by setting the symmetrical cutting edge of traditional ultrasonic cutting tools to an asymmetrical state. When making vertical cuts, the asymmetrical design of the cutting edge ensures a straight and flat cut, solving the problem of beveled cuts. Furthermore, it prevents outward displacement of the material during the cutting process, improving the stability of the cut material.

Description

Technical Field

[0001] This invention relates to the field of ultrasonic cutting tool technology, and more specifically to an asymmetrical ultrasonic cutting tool for cutting tire rubber. Background Technology

[0002] Ultrasonic cutting converts 50 / 60Hz current into 20, 30, or 40kHz electrical energy using an ultrasonic generator. This energy is then converted into mechanical vibrations of the same frequency. These vibrations are transmitted to the cutting blade via an amplitude modulator that can change the amplitude. The cutting blade transfers the received vibrational energy to the cutting surface of the workpiece, where the vibrational energy is used to cut the rubber material by activating the rubber molecules and opening their molecular chains.

[0003] Existing ultrasonic cutting tools have the following defects: Firstly, ultrasonic cutting tools consist of two parts: the blade body and the cutting edge. The cutting edge is symmetrical along the center line of the tool, and the two sides of the cutting edge are inclined outwards (e.g., Figure 2 As shown in the diagram, this symmetrical blade creates a beveled cut on the rubber material, making it difficult to achieve a straight cut. The blade exerts an outward pushing force on the material during cutting, easily causing material deviation and errors. Secondly, the blade is installed via a threaded connection between the blade and a threaded post. Tightening the blade in is laborious and prone to excessive or insufficient rotation angle, leading to angular deviation between the blade and the cutting table. Thirdly, the blade requires horizontal adjustment after installation to ensure the bottom of the blade is parallel to the cutting table. This process requires manual observation and adjustment, making it complex and inefficient. Summary of the Invention

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides an asymmetrical blade ultrasonic cutting tool for cutting tire rubber, so as to solve the problems that the blade influence of the existing ultrasonic cutting tool does not meet the cutting requirements of tire rubber, and the cutting process is prone to material deviation and error, as well as the lack of adjustment function of the existing tool.

[0005] This invention provides the following technical solution: an asymmetrical ultrasonic cutting tool for cutting tire rubber, comprising an ultrasonic tool body, the ultrasonic tool body being composed of a blade portion and a cutting edge portion, one side of the cutting edge portion extending vertically downward along the centerline of the ultrasonic tool body, one side of the cutting edge portion being a vertical surface, and the other side being an inclined surface; a lower groove is provided at the center of the top of the ultrasonic tool body, a gravity leveling structure is provided in the lower groove, a slot is provided at the top of the gravity leveling structure, a connecting post is inserted into the slot, a fixed angle slider is provided on the side wall of the connecting post, a fixed angle groove adapted to the fixed angle slider is provided in the slot, an automatic pre-fixing mechanism is provided on the inner wall of the slot, a pre-fixing insertion hole adapted to the automatic pre-fixing mechanism is provided on the side wall of the connecting post, a leveling and fastening mechanism is provided inside the gravity leveling structure, a locking mechanism is installed inside the connecting post, and multiple locking pin holes adapted to the output end of the locking mechanism are provided on the inner wall of the slot.

[0006] Furthermore, the outer surface of the blade is coated with an ARS coating with a film thickness of 2-4 μm, and the outer surface of the blade body is coated with a TIN coating with a film thickness of 3-5 μm.

[0007] Furthermore, the connecting post includes a bottom post and a top post; the bottom post and the top post are fixedly connected by two U-shaped connecting blocks; the locking mechanism includes a rotating disk, a threaded shaft, a shifting kit, and a snap-fit ​​block; the shifting kit is threaded onto the side wall of the threaded shaft; the rotating disk is fixedly connected to the side wall of the threaded shaft; the shifting kit slides onto the inner cavity of the bottom post; a frustum-shaped contact block is fixedly connected to the bottom end of the shifting kit; the side wall of the bottom post has through slots communicating with the inner cavity of the bottom post, the number of through slots being equal to the number of locking pin holes; the number of snap-fit ​​blocks is equal to the number of through slots, and multiple snap-fit ​​blocks slide onto each other within the through slots; the snap-fit ​​block is the output end of the locking mechanism; the bottom end of the frustum-shaped contact block is vertically aligned with the top end of the leveling and fastening mechanism.

[0008] Furthermore, the side of the latching block facing the inner cavity of the bottom column is an inclined surface, and its inclination is equal to the inclination of the side wall of the frustum-shaped contact block.

[0009] Furthermore, a magnetic sheet one is provided on the side of the buckle block away from the inner cavity of the bottom column, and a magnetic sheet two is provided on the inner wall of the locking pin hole, with the magnetic sheet one and the magnetic sheet two repelling each other.

[0010] Furthermore, the top and bottom of the buckle block are provided with anti-detachment sliders, and the inner wall of the groove on the side wall of the bottom column is provided with an anti-detachment groove that matches the anti-detachment slider.

[0011] Furthermore, the side wall of the displacement kit is provided with an anti-rotation positioning slider, and the inner cavity of the bottom column is provided with an anti-rotation positioning groove, in which the anti-rotation positioning slider slides and engages.

[0012] Furthermore, the gravity leveling structure includes a main connecting block, and the main connecting block is provided with an end shaft at both the front and back ends. The end shaft is movably sleeved in the groove under the ultrasonic cutter body, and the central axis of the end shaft intersects perpendicularly with the center line of the front of the ultrasonic cutter body.

[0013] Furthermore, the sidewall of the gravity leveling structure is arc-shaped, and the lower groove of the ultrasonic cutter body is adapted to the shape of the gravity leveling structure. The sidewall of the gravity leveling structure does not contact the inner wall of the lower groove. The bottom of the gravity leveling structure has a column hole that penetrates into the slot of the gravity leveling structure. The inner wall of the column hole has an annular groove. The leveling and fastening mechanism includes a pressing column. A push-back ring is fixedly connected to the sidewall of the pressing column. The pressing column passes through the column hole. The push-back ring slides in the annular groove. The bottom of the push-back ring is connected to the inner wall of the annular groove through a second spring.

[0014] Furthermore, the automatic pre-fixing mechanism includes multiple pins, each of which has a hemispherical groove at one end facing the side wall of the connecting pin. A ball is movably fitted inside the hemispherical groove. The number of pre-fixing holes is equal to the number of balls, and the shape of the pre-fixing holes is adapted to the part of the ball protruding from the hemispherical groove. The inner wall of the gravity leveling structure slot is provided with multiple pin holes. The pins slide within the hemispherical grooves, and the other end of the pins is connected to the inner wall of the pin hole via a first spring.

[0015] The technical effects and advantages of this invention are as follows:

[0016] This invention sets the symmetrical blade of a traditional ultrasonic cutting tool to an asymmetrical state to meet the cutting requirements of tire rubber. When making vertical cuts, the asymmetrical blade design makes the cut of the material straight and flat, solving the problem of beveled cuts. Moreover, it does not cause external friction on the material during the cutting process, thus improving the stability of the cut material.

[0017] In addition, the tool is designed with a plug-in installation structure, replacing the traditional threaded connection installation structure, which simplifies the installation process and avoids the problems of tool angle error and laborious installation.

[0018] A gravity adjustment structure is also provided on top of this mounting structure, which allows the tool to be suspended and automatically adjusted to a horizontal position by gravity, replacing the traditional manual observation and adjustment process. This improves the tool installation efficiency and further simplifies the tool installation process. Attached Figure Description

[0019] Figure 1 This is a side view of the main body of the ultrasonic cutter of the present invention;

[0020] Figure 2 Side view of the body of a traditional ultrasonic cutting tool;

[0021] Figure 3 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 4 This is an exploded view of the overall structure of the present invention;

[0023] Figure 5 For the present invention Figure 4 A schematic diagram of the connecting pin and locking mechanism in the diagram;

[0024] Figure 6 For the present invention Figure 4 Schematic diagram of the automatic pre-fixing mechanism and leveling and fastening mechanism in the middle;

[0025] Figure 7 For the present invention Figure 1 A schematic diagram showing the coating coverage on the blade and cutting edge.

[0026] The attached figures are labeled as follows: 1. Ultrasonic cutter body; 2. Gravity leveling structure; 3. Connecting pin; 4. Angle slider; 5. Locking mechanism; 6. Automatic pre-fixing mechanism; 7. Leveling and fastening mechanism; 8. Pre-fixing recess; 9. Locking pin hole; 11. Blade body; 12. Blade edge; 21. Main body connecting block; 22. End shaft; 31. Bottom post; 32. Top post; 33. U-shaped connecting block; 51. Rotary disc; 52. Threaded shaft; 53. Shifting kit; 54. Buckle block; 55. Frustum-shaped contact block; 61. Pin; 62. First spring; 63. Ball bearing; 71. Extrusion post; 72. Back thrust ring; 73. Second spring. Detailed Implementation

[0027] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0028] Reference Figure 1 , 34, 6, This invention provides an asymmetrical ultrasonic cutting tool for cutting tire rubber, comprising an ultrasonic tool body 1, which is composed of a blade portion 11 and a cutting edge portion 12. One side of the cutting edge portion 12 extends vertically downward along the centerline of the ultrasonic tool body 1, with one side being a vertical surface and the other side being an inclined surface. A lower groove is provided at the center of the top of the ultrasonic tool body 1, and a gravity leveling structure 2 is provided in the lower groove. A slot is provided at the top of the gravity leveling structure 2, and a connecting pin 3 is inserted into the slot. The side wall of the column 3 is provided with a fixed angle slider 4, and the slot is provided with a fixed angle groove that matches the fixed angle slider 4. The inner wall of the slot is provided with an automatic pre-fixing mechanism 6. The side wall of the connecting column 3 is provided with a pre-fixing hole 8 that matches the automatic pre-fixing mechanism 6. The gravity leveling structure 2 is provided with a leveling and fastening mechanism 7. The connecting column 3 is installed with a locking mechanism 5. The inner wall of the slot is provided with multiple locking pin holes 9 that match the output end of the locking mechanism 5. By setting the position and shape of the blade, the blade is asymmetrical when viewed from the side, but still symmetrical when viewed from the front.

[0029] Reference Figure 7 The outer surface of the cutting edge 12 is coated with an ARS coating with a film thickness of 2-4 μm, and the outer surface of the blade 11 is coated with a TIN coating with a film thickness of 3-5 μm, which can improve the strength, wear resistance and high temperature resistance of the tool.

[0030]

[0031] Reference Figure 5 The connecting post 3 includes a bottom post 31 and a top post 32; the bottom post 31 and the top post 32 are fixedly connected by two U-shaped connecting blocks 33. The locking mechanism 5 includes a rotating disk 51, a threaded shaft 52, a shifting kit 53, and a snap-fit ​​block 54. The shifting kit 53 is threaded onto the side wall of the threaded shaft 52, and the rotating disk 51 is fixedly connected to the side wall of the threaded shaft 52. The shifting kit 53 is slidably sleeved within the inner cavity of the bottom post 31. A frustum-shaped contact block 55 is fixedly connected to the bottom end of the shifting kit 53. The side wall of the bottom post 31 has through slots that communicate with the inner cavity of the bottom post 31. The number of through slots is equal to the number of locking pin holes 9. The number of snap-fit ​​blocks 54 is equal to the number of through slots, and multiple snap-fit ​​blocks... 54 slides and fits in the slot respectively. The snap block 54 is the output end of the locking mechanism 5. The bottom end of the frustum-shaped contact block 55 is vertically aligned with the top end of the leveling and fastening mechanism 7. By rotating the turntable 51, the threaded shaft 52 is rotated. Under the threaded structure, the displacement kit 53 can be moved down. The side wall of the frustum-shaped contact block 55 exerts a squeezing force on the snap block 54, which can make the snap block 54 slide outward of the bottom post 31. When the snap block 54 is inserted into the locking pin hole 9, the connecting pin 3 can be locked in the slot of the gravity leveling structure 2, thereby achieving the anti-disengagement effect. During the downward movement of the frustum-shaped contact block 55, it also exerts a squeezing effect on the top end of the leveling and fastening mechanism 7, triggering the leveling and fastening mechanism 7.

[0032] Reference Figure 5 The side of the latching block 54 facing the inner cavity of the bottom post 31 is an inclined surface, and its inclination is equal to that of the side wall of the frustum-shaped contact block 55. This allows for a larger contact area when the side wall of the frustum-shaped contact block 55 contacts the inclined surface of the latching block 54, resulting in a better pushing effect of the frustum-shaped contact block 55 on the latching block 54.

[0033] Reference Figure 5 A magnetic sheet 1 is provided on the side of the buckle block 54 away from the inner cavity of the bottom post 31, and a magnetic sheet 2 is provided on the inner wall of the locking pin hole 9. The magnetic sheet 1 and the magnetic sheet 2 repel each other. When the frustum-shaped contact block 55 moves upward, the buckle block 54 can be reset and re-detached from the inside of the locking pin hole 9 due to the mutual repulsion effect of the magnetic sheet 1 and the magnetic sheet 2.

[0034] Reference Figure 5 The top and bottom of the buckle block 54 are equipped with anti-detachment sliders, and the inner wall of the groove on the side wall of the bottom post 31 is equipped with an anti-detachment groove that matches the anti-detachment slider, which can prevent the buckle block 54 from falling out of the groove on the side wall of the bottom post 31.

[0035] Reference Figure 5 The side wall of the shift kit 53 is provided with an anti-rotation positioning slider, and the inner cavity of the bottom column 31 is provided with an anti-rotation positioning groove. The anti-rotation positioning slider slides in the anti-rotation positioning groove to prevent the shift kit 53 from rotating with the threaded shaft 52 due to friction.

[0036] Reference Figure 4 The gravity leveling structure 2 includes a main connecting block 21. The main connecting block 21 is provided with an end shaft 22 on both the front and back ends. The end shaft 22 is movably sleeved in the groove under the ultrasonic cutter body 1. The central axis of the end shaft 22 intersects perpendicularly with the center line of the front of the ultrasonic cutter body 1. With this setting, after the ultrasonic cutter body 1 is initially installed, the ultrasonic cutter body 1 can be suspended, and the hanging point is the center position of the top of the ultrasonic cutter body 1. At this time, the ultrasonic cutter body 1 can complete the automatic leveling effect under the influence of gravity.

[0037] Reference Figure 4 , 6The gravity leveling structure 2 has an arc-shaped sidewall. The groove of the ultrasonic cutter body 1 is adapted to the shape of the gravity leveling structure 2. The sidewall of the gravity leveling structure 2 does not contact the inner wall of the groove. The bottom of the gravity leveling structure 2 has a column hole that penetrates into the slot of the gravity leveling structure 2. The inner wall of the column hole has an annular groove. The leveling and fastening mechanism 7 includes a pressing column 71. A push ring 72 is fixedly connected to the sidewall of the pressing column 71. The pressing column 71 passes through the column hole. The push ring 72 slides in the annular groove. The bottom of the push ring 72 is connected to the inner wall of the annular groove through a second spring 73. When the top of the leveling and fastening mechanism 7 is pressed, the pressing column 71 moves down, so that the bottom end of the pressing column 71 presses against the inner wall of the groove of the ultrasonic cutter body 1. This can achieve the effect of fixing the gravity leveling structure 2 in the groove of the ultrasonic cutter body 1, so that the ultrasonic cutter body 1 is leveled and fixed. When the top of the leveling and fastening mechanism 7 is not pressed, the pressing column 71 automatically resets under the influence of the elastic force of the second spring 73.

[0038] Reference Figure 6 The automatic pre-fixing mechanism 6 includes multiple pins 61. Each pin 61 has a hemispherical groove at one end facing the side wall of the connecting pin 3. A ball bearing 63 is movably fitted inside the hemispherical groove. The number of pre-fixing holes 8 is equal to the number of balls bearing 63, and the shape of the pre-fixing holes 8 is adapted to the part of the balls bearing 63 protruding from the hemispherical groove. The inner wall of the gravity leveling structure 2 slot is provided with multiple pin holes. The pins 61 slide in the hemispherical groove. The other end of the pin 61 is connected to the inner wall of the pin hole through a first spring 62. When the connecting pin 3 is inserted into the gravity leveling structure 2 slot, the pin hole on the inner wall of the gravity leveling structure 2 slot is aligned with the pre-fixing hole 8. At this time, the elastic force of the first spring 62 can make the pin 61 slide, so that the balls bearing 63 are embedded in the pre-fixing hole 8. At this time, the connecting pin 3 plays a preliminary pre-fixing role in the gravity leveling structure 2 slot.

[0039] The working principle of the present invention is as follows: By designing the position and shape of the blade part 12, the blade part 12 is asymmetrical. When cutting materials vertically, the material is contacted by the vertical surface of the blade part 12, which makes the material cut straight and flat. In addition, the waste material during cutting forms an outward pushing force under the action of the inclined surface of the blade part 12, which can prevent the waste material from sticking to the blade.

[0040] During the tool installation process, the connecting pin 3 is first inserted into the slot of the gravity leveling structure 2. Under the action of the automatic pre-fixing mechanism 6, the automatic pre-fixing effect is completed in conjunction with the pre-fixing hole 8 on the side wall of the connecting pin 3. At this time, it is in the leveling stage. Due to the structural setting of the gravity leveling structure 2, the ultrasonic tool body 1 is in a suspended state. The ultrasonic tool body 1 can complete the automatic leveling effect through gravity. When the ultrasonic tool body 1 is in a stationary state, the connecting pin 3 can be locked in the top slot of the gravity leveling structure 2 by the locking mechanism 5 to prevent the tool from falling off. During the operation of the locking mechanism 5, it docks with the leveling and fastening mechanism 7. The leveling and fastening mechanism 7 can fasten the gravity leveling structure 2 in the top groove to achieve the fixed effect after adjustment.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. The present invention is not limited to the above embodiments; the embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. An asymmetrical ultrasonic cutting tool for cutting tire rubber, comprising an ultrasonic tool body (1), wherein the ultrasonic tool body (1) is composed of a blade portion (11) and a cutting edge portion (12), characterized in that: The blade (12) extends vertically downward along the centerline of the ultrasonic cutter body (1) on one side, and the blade (12) is a vertical surface on one side and an inclined surface on the other side. The ultrasonic cutter body (1) has a lower groove at the top center, and a gravity leveling structure (2) is provided in the lower groove. The gravity leveling structure (2) has a slot at the top, and a connecting post (3) is inserted into the slot. A fixed angle slider (4) is provided on the side wall of the connecting post (3), and a fixed angle groove that matches the fixed angle slider (4) is provided in the slot. The inner wall of the slot is provided with an automatic pre-fixing mechanism (6), the side wall of the connecting post (3) is provided with a pre-fixing hole (8) adapted to the automatic pre-fixing mechanism (6), the gravity leveling structure (2) is provided with a leveling and fastening mechanism (7), the connecting post (3) is provided with a locking mechanism (5), and the inner wall of the slot is provided with a plurality of locking pin holes (9) adapted to the output end of the locking mechanism (5). The gravity leveling structure (2) includes a main body connecting block (21). The main body connecting block (21) is provided with an end shaft (22) on both the front and back ends. The end shaft (22) is movably sleeved in the groove under the ultrasonic cutter body (1). The central axis of the end shaft (22) intersects perpendicularly with the center line of the front of the ultrasonic cutter body (1). The side wall of the gravity leveling structure (2) is arc-shaped. The groove of the ultrasonic cutter body (1) is adapted to the shape of the gravity leveling structure (2). The side wall of the gravity leveling structure (2) does not contact the inner wall of the groove. The bottom of the gravity leveling structure (2) is provided with a column hole that penetrates into the slot of the gravity leveling structure (2). The inner wall of the column hole is provided with an annular groove. The leveling and fastening mechanism (7) includes a pressing column (71), and a push ring (72) is fixedly connected to the side wall of the pressing column (71). The pressing column (71) passes through the column hole, and the push ring (72) slides in the ring groove. The bottom of the push ring (72) is connected to the inner wall of the ring groove through a second spring (73).

2. The asymmetrical blade ultrasonic cutting tool for cutting tire rubber according to claim 1, characterized in that: The outer surface of the blade (12) is coated with an ARS coating with a film thickness of 2-4 μm, and the outer surface of the blade body (11) is coated with a TIN coating with a film thickness of 3-5 μm.

3. The asymmetrical blade ultrasonic cutting tool for cutting tire rubber according to claim 1, characterized in that: The connecting post (3) includes a bottom post (31) and a top post (32); the bottom post (31) and the top post (32) are fixedly connected by two U-shaped connecting blocks (33); The locking mechanism (5) includes a rotating disk (51), a threaded shaft (52), a shifting kit (53), and a snap-fit ​​block (54). The shifting kit (53) is threaded onto the side wall of the threaded shaft (52). The rotating disk (51) is fixedly connected to the side wall of the threaded shaft (52). The shifting kit (53) is slidably sleeved in the inner cavity of the bottom column (31). A frustum-shaped contact block (55) is fixedly connected to the bottom end of the shifting kit (53). The side wall of the bottom column (31) has a through groove that communicates with the inner cavity of the bottom column (31). The number of through grooves is equal to the number of locking pin holes (9). The number of snap-fit ​​blocks (54) is equal to the number of through grooves. Multiple snap-fit ​​blocks (54) are slidably sleeved in the through grooves. The snap-fit ​​block (54) is the output end of the locking mechanism (5). The bottom end of the frustum-shaped contact block (55) is vertically aligned with the top end of the leveling and fastening mechanism (7).

4. The asymmetrical blade ultrasonic cutting tool for cutting tire rubber according to claim 3, characterized in that: The side of the buckle block (54) facing the inner cavity of the bottom column (31) is an inclined surface, and its inclination is equal to the inclination of the side wall of the frustum-shaped contact block (55).

5. The asymmetrical blade ultrasonic cutting tool for cutting tire rubber according to claim 3, characterized in that: A magnetic sheet is provided on the side of the buckle block (54) away from the inner cavity of the bottom post (31), and a magnetic sheet is provided on the inner wall of the locking pin hole (9). The magnetic sheet one and the magnetic sheet two repel each other.

6. The asymmetrical blade ultrasonic cutting tool for cutting tire rubber according to claim 3, characterized in that: The top and bottom of the buckle block (54) are provided with anti-detachment sliders, and the inner wall of the side wall of the bottom column (31) is provided with an anti-detachment groove that is compatible with the anti-detachment slider.

7. The asymmetrical blade ultrasonic cutting tool for cutting tire rubber according to claim 3, characterized in that: The side wall of the shifting kit (53) is provided with an anti-rotation positioning slider, and the inner cavity of the bottom column (31) is provided with an anti-rotation positioning groove, and the anti-rotation positioning slider slides in the anti-rotation positioning groove.

8. The asymmetrical blade ultrasonic cutting tool for cutting tire rubber according to claim 1, characterized in that: The automatic pre-fixing mechanism (6) includes multiple pins (61). Each of the pins (61) has a hemispherical groove at one end facing the side wall of the connecting pin (3). A ball (63) is movably sleeved in the hemispherical groove. The number of pre-fixing holes (8) is equal to the number of balls (63), and the shape of the pre-fixing holes (8) is adapted to the part of the ball (63) protruding from the hemispherical groove. The inner wall of the gravity leveling structure (2) slot is provided with multiple pin holes. The pins (61) slide in the hemispherical groove. The other end of the pins (61) is connected to the inner wall of the pin hole through a first spring (62).

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