Symmetrical vibration driving mechanism and cutting machine head

Abstract

The utility model provides a symmetrical type vibration driving mechanism and a cutting machine head, and belongs to the technical field of cutting, the symmetrical type vibration driving mechanism comprises a vibration driving structure, a belt wheel structure, a vibration structure, a crankshaft belt wheel, a vibration connecting rod and a balance weight structure, the balance weight structure comprises two balance weight parts, and the two balance weight parts take the axis of the crankshaft belt wheel as the reference. The balance weight parts are symmetrically arranged on the two sides of the crankshaft belt wheel, each balance weight part comprises a balance weight belt wheel, the two balance weight belt wheels are connected with the crankshaft belt wheel through a vibration synchronous belt, and the crankshaft belt wheel is externally tangent to the vibration synchronous belt; the balance weight tensioning wheel and the crankshaft belt wheel are arranged up and down, and the balance weight tensioning wheel is internally tangent to the vibration synchronous belt. Due to the fact that the symmetrical balance weight structures are arranged, noise generated when the cutting tool conducts vibration cutting is reduced, and health and safety of a user are guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of cutting and relates to a driving mechanism, in particular to a symmetrical vibration driving mechanism and a cutting machine head. Background Art

[0002] The existing noise limit in fabric cutting production workshops is 85 decibels. However, because the eccentric wheel assembly designed for the automatic fabric cutting machine is too thin and the overall rigidity of the equipment is insufficient, the speed cannot be increased. Once the speed is increased, the eccentric wheel assembly will emit a loud abnormal noise under the influence of dynamic balance. The noise emitted by the automatic fabric cutting machine can even reach 80-95 decibels, seriously affecting the user's auditory nerves and greatly affecting the user's health and safety. Utility Model Content

[0003] The purpose of the utility model is to address the above-mentioned problems in the existing technology and to propose a symmetrical vibration drive mechanism that can reduce the decibels of noise when cutting fabrics.

[0004] The purpose of the utility model can be achieved through the following technical solutions: A symmetrical vibration drive mechanism, comprising:

[0005] A vibration motor, wherein one end of the vibration motor is an output end;

[0006] A pulley structure, one end of which is connected to the output end of the vibration motor;

[0007] The vibration structure includes a crank, one end of which is connected to the other end of the pulley structure, and a connecting rod shaft is arranged on the crank along the axis of the crank, and there is a certain distance between the axis of the connecting rod shaft and the axis of the crank, so that the connecting rod shaft is eccentrically arranged on the crank; a crank pulley is connected to the crank and is coaxially arranged with the crank;

[0008] A vibrating connecting rod, one end of which is nested with the connecting rod shaft through a bearing, and the other end is provided with a cutting tool;

[0009] The counterweight structure includes two counterweight parts, and the two counterweight parts are symmetrically arranged on both sides of the crankshaft pulley based on the axis of the crankshaft pulley, and each counterweight part includes a counterweight pulley, wherein the two counterweight pulleys are connected to the crankshaft pulley through a vibrating synchronous belt, and the crankshaft pulley is circumscribed on the vibrating synchronous belt; the counterweight tensioner is arranged above and below the crankshaft pulley, and the counterweight tensioner is inscribed on the vibrating synchronous belt.

[0010] In the above-mentioned symmetrical vibration drive mechanism, the pulley structure includes:

[0011] A driving pulley connected to the output end of the vibration motor;

[0012] The driving tension wheel is arranged above and below the driving pulley;

[0013] Drive timing belt, one end of which is connected to the drive pulley and the other end is connected to the drive tension pulley;

[0014] A main pulley is circumscribed on the driving synchronous belt and is coaxially arranged with the crank, and the main pulley is located between the driving pulley and the driving tensioning pulley, wherein the crank is driven to rotate by the main pulley;

[0015] The two slave pulleys are symmetrically arranged on the upper and lower sides of the main pulley with the axis of the main pulley as the reference, and the two slave pulleys are inscribed on the driving synchronous belt.

[0016] In the above-mentioned symmetrical vibration drive mechanism, the crank comprises:

[0017] a first crankshaft, one side of which is connected to the main pulley;

[0018] The first crankshaft pressing block is arranged vertically with respect to the first crankshaft, and the first crankshaft and the first crankshaft are connected to each other to clamp and fix one end of the connecting rod shaft, wherein the axis of the first crankshaft and the axis of the connecting rod shaft are arranged vertically;

[0019] a second crankshaft, one side of which is connected to the crankshaft pulley;

[0020] The second crank block is distributed up and down with the second crank shaft, and the other end of the connecting rod shaft is clamped and fixed by the connection between the second crank block and the second crank shaft, wherein the axis of the second crank shaft and the axis of the connecting rod shaft are arranged up and down, and the vibrating connecting rod is located between the other side of the first crank shaft and the other side of the second crank shaft.

[0021] In the above-mentioned symmetrical vibration drive mechanism, the opposite sides of the first crankshaft and the second crankshaft are arranged in a stepped shape, respectively provided with a first step surface and a second step surface, and the thickness of the first step surface is greater than the thickness of the second step surface, wherein the first step surface and the second step surface on the first crankshaft respectively correspond one-to-one with the first step surface and the second step surface on the second crankshaft, and the end of the vibration connecting rod connected to the connecting rod shaft corresponds to the position of the second step surface.

[0022] The above-mentioned symmetrical vibration drive mechanism also includes a box body, which is hollow inside, and a part of the vibration structure and a part of the counterweight structure are located inside the box body, and another part of the vibration structure and another part of the counterweight structure are located outside the box body, wherein a bearing is nested at one end of the first crankshaft connected to the main pulley, and the bearing is nested with one side wall of the box body, and a bearing is nested at one end of the second crankshaft connected to the crankshaft pulley, and the bearing is nested with the other side wall of the box body.

[0023] In the above-mentioned symmetrical vibration drive mechanism, an inspection port is provided on the box body, and an inspection cover is provided at a position corresponding to the inspection port, and the inspection cover is detachably connected to the box body by fasteners, wherein the position of the inspection port corresponds to the position of the vibration structure, and the inspection port can be opened or sealed by the inspection cover.

[0024] In the above-mentioned symmetrical vibration drive mechanism, the counterweight part also includes a counterweight crankshaft, and the counterweight crankshaft is U-shaped, wherein one side of the open end of the counterweight crankshaft is connected to the counterweight pulley, and bearings are respectively provided on both sides of the open end of the counterweight crankshaft, and the two bearings are respectively nested with the two side walls of the box body.

[0025] In the above-mentioned symmetrical vibration drive mechanism, the first crankshaft, the first crank pressure block, the second crankshaft, the second crank pressure block and the counterweight crankshaft in the counterweight part in the vibration structure are located inside the casing; the crankshaft pulley in the vibration structure and the counterweight pulley in the counterweight part are located outside the casing.

[0026] In the above-mentioned symmetrical vibration drive mechanism, a belt spacer is also included, and one side of the belt spacer is in contact with the inner side of the driving synchronous belt, and the other side of the belt spacer is connected to the box body, wherein the two slave pulleys are respectively connected to the box body through the pulley shaft, and the main pulley is connected to the box body.

[0027] The utility model provides a cutting machine head, which comprises the symmetrical vibration drive mechanism.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] The utility model provides a symmetrical vibration drive mechanism, which reduces the noise generated by the cutting tool during vibration cutting by setting a symmetrical counterweight structure, thereby ensuring the health and safety of the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural schematic diagram of a symmetrical vibration drive mechanism of the utility model.

[0031] Figure 2 This is a structural schematic diagram of a symmetrical vibration drive mechanism of the utility model from another perspective.

[0032] Figure 3 The utility model is a structural schematic diagram of opening an inspection cover in a symmetrical vibration drive mechanism.

[0033] Figure 4 It is a partial structural diagram of a symmetrical vibration drive mechanism of the utility model.

[0034] Figure 5 yes Figure 4The partial exploded view is shown.

[0035] Figure 6 yes Figure 4 Schematic diagram of the local structure shown.

[0036] In the figure,

[0037] 10. Vibration motor;

[0038] 20. Pulley structure; 21. Driving pulley; 22. Driving tensioner; 23. Driving synchronous belt; 24. Main pulley; 25. Slave pulley;

[0039] 30. Vibration structure; 31. Crank; 311. First crankshaft; 3111. First step surface; 3112. Second step surface; 312. First crank pressing block; 313. Second crankshaft; 314. Second crank pressing block; 32. Connecting rod shaft; 33. Crankshaft pulley;

[0040] 40. Vibrating connecting rod; 50. Cutting tool;

[0041] 60. Counterweight structure; 61. Counterweight pulley; 62. Vibrating timing belt; 63. Counterweight tensioner; 64. Counterweight crankshaft;

[0042] 70. Box body; 71. Inspection port; 72. Inspection cover; 73. Belt partition;

[0043] 80. Connecting structure; 81. Connecting rod seat; 811. Clamping portion; 82. Rotating blade holder; 83. Clamping block. DETAILED DESCRIPTION

[0044] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0045] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0046] like Figures 1 to 6 As shown, the utility model provides a symmetrical vibration drive mechanism, comprising:

[0047] A vibration motor 10, wherein one end of the vibration motor 10 is an output end;

[0048] A pulley structure 20 , one end of which is connected to the output end of the vibration motor 10 ;

[0049] The vibration structure 30 includes a crank 31, one end of which is connected to the other end of the pulley structure 20. A connecting rod 32 is provided on the crank 31 along the axis of the crank 31, and a certain distance is provided between the axis of the connecting rod 32 and the axis of the crank 31, so that the connecting rod 32 is eccentrically arranged on the crank 31; a crank pulley 33 is connected to the crank 31 and is coaxially arranged with the crank 31.

[0050] The vibration connecting rod 40 has one end that is nested with the connecting rod shaft 32 through a bearing, and a cutting tool 50 is provided at the other end;

[0051] The counterweight structure 60 includes two counterweight parts, and the two counterweight parts are symmetrically arranged on both sides of the crankshaft pulley 33 based on the axis of the crankshaft pulley 33, and each counterweight part includes a counterweight pulley 61, wherein the two counterweight pulleys 61 are connected to the crankshaft pulley 33 through a vibrating synchronous belt 62, and the crankshaft pulley 33 is circumscribed on the vibrating synchronous belt 62; the counterweight tensioning pulley 63 is arranged up and down with the crankshaft pulley 33, and the counterweight tensioning pulley 63 is inscribed on the vibrating synchronous belt 62.

[0052] The present invention provides a symmetrical vibration drive mechanism, which reduces the noise generated by the cutting tool 50 during vibration cutting by providing a symmetrical counterweight structure 60, thereby ensuring the health and safety of the user.

[0053] Preferably, the pulley structure 20 includes:

[0054] A driving pulley 21 is connected to the output end of the vibration motor 10;

[0055] The driving tension wheel 22 is arranged above and below the driving pulley 21;

[0056] A driving synchronous belt 23, one end of which is connected to the driving pulley 21, and the other end of which is connected to the driving tensioning pulley 22;

[0057] The main pulley 24 is circumscribed on the driving synchronous belt 23 and is coaxially arranged with the crank 31. The main pulley 24 is located between the driving pulley 21 and the driving tensioning pulley 22. The crank 31 is driven to rotate by the main pulley 24.

[0058] The two slave pulleys 25 are symmetrically arranged on the upper and lower sides of the main pulley 24 with the axis of the main pulley 24 as a reference, and the two slave pulleys 25 are inscribed on the driving synchronous belt 23.

[0059] It is worth mentioning that, according to the above description, the drive synchronous belt 23 passes through the drive pulley 21, the drive tensioning pulley 22, one of the two slave pulleys 25, the main pulley 24 and the other of the two slave pulleys 25 in sequence, so that the entire drive synchronous belt 23 forms a similar "B" type structure.

[0060] Preferably, the crank 31 comprises:

[0061] A first crankshaft 311, one side of which is connected to the main pulley 24;

[0062] The first crankshaft pressing block 312 is arranged above and below the first crankshaft 311, and the first crankshaft pressing block 312 and the first crankshaft 311 are connected to each other to clamp and fix one end of the connecting rod shaft 32, wherein the axis of the first crankshaft 311 and the axis of the connecting rod shaft 32 are arranged above and below;

[0063] A second crankshaft 313 , one side of which is connected to the crankshaft pulley 33 ;

[0064] The second crank block 314 is distributed up and down with the second crank shaft 313, and the other end of the connecting rod shaft 32 is clamped and fixed by the splicing between the second crank block 314 and the second crank shaft 313, wherein the axis of the second crank shaft 313 and the axis of the connecting rod shaft 32 are arranged up and down, and the vibration connecting rod 40 is located between the other side of the first crank shaft 311 and the other side of the second crank shaft 313.

[0065] It is worth mentioning that the first crankshaft 311 and the second crankshaft 313 are arranged on opposite sides in a stepped shape, respectively provided with a first step surface 3111 and a second step surface 3112, and the thickness of the first step surface 3111 is greater than the thickness of the second step surface 3112, wherein the first step surface 3111 and the second step surface 3112 on the first crankshaft 311 respectively correspond one-to-one to the first step surface 3111 and the second step surface 3112 on the second crankshaft 313, and the end of the vibration connecting rod 40 connected to the connecting rod shaft 32 corresponds to the position of the second step surface 3112.

[0066] Preferably, it also includes a box body 70, which is hollow inside, and a part of the vibration structure 30 and a part of the counterweight structure 60 are located inside the box body 70, and another part of the vibration structure 30 and another part of the counterweight structure 60 are located outside the box body 70, wherein a bearing is nested at one end of the first crankshaft 311 connected to the main pulley 24, and the bearing is nested with one side wall of the box body 70, and a bearing is nested at one end of the second crankshaft 313 connected to the crankshaft pulley 33, and the bearing is nested with the other side wall of the box body 70.

[0067] Further preferably, an inspection port 71 is provided on the box body 70, and an inspection cover 72 is provided at a position corresponding to the inspection port 71, and the inspection cover 72 is detachably connected to the box body 70 by fasteners, wherein the position of the inspection port 71 corresponds to the position of the vibration structure 30, and the inspection port 71 can be opened or sealed by the inspection cover 72.

[0068] Preferably, the counterweight part also includes a counterweight crankshaft 64, and the counterweight crankshaft 64 is U-shaped, wherein one side of the open end of the counterweight crankshaft 64 is connected to the counterweight pulley 61, and bearings are respectively provided on both sides of the open end of the counterweight crankshaft 64, and the two bearings are respectively nested with the two side box walls of the box body 70.

[0069] It is worth mentioning that the first crankshaft 311, the first crank pressure block 312, the second crankshaft 313, the second crank pressure block 314 and the counterweight crankshaft 64 in the counterweight part in the vibration structure 30 are located inside the box 70; the crankshaft pulley 33 in the vibration structure 30 and the counterweight pulley 61 in the counterweight part are located outside the box 70.

[0070] Preferably, it also includes a belt partition 73 arranged in an L shape, and one side of the belt partition 73 is in contact with the inner side of the driving synchronous belt 23, and the other side of the belt partition 73 is connected to the box body 70, wherein the two slave pulleys 25 are respectively connected to the box body 70 through the pulley shaft, and the main pulley 24 is connected to the box body 70.

[0071] Preferably, a connecting structure 80 is also provided between the vibration connecting rod 40 and the cutting tool 50, and the connecting structure 80 includes a connecting rod seat 81, one end of which is nested and connected to the vibration connecting rod 40, and the connection between the two is locked by a fastener, and the other end is provided with a clamping portion 811; a rotating fixed knife seat 82, one end of which is embedded in the clamping portion 811, and the other end is connected to the cutting tool 50; a clamping block 83, which is spliced ​​and connected to the clamping portion 811 by a fastener, clamps the rotating fixed knife seat 82 between the clamping block 83 and the clamping portion 811, and the rotating fixed knife seat 82 rotates circumferentially.

[0072] It should be noted that, in the present utility model, descriptions such as "first", "second", "one", etc. are only used 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 defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly defined. The terms "connected", "fixed", etc. should be understood in a broad sense. For example, "fixed" can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0073] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in this field can implement it. When the combination of technical solutions is 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 this utility model.

[0074] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

Claims

1. A symmetrical vibration drive mechanism, characterized in that: include: A vibration motor, wherein one end of the vibration motor is an output end; A pulley structure, one end of which is connected to the output end of the vibration motor; The vibration structure includes a crank, one end of which is connected to the other end of the pulley structure, and a connecting rod shaft is arranged on the crank along the axis of the crank, and there is a certain distance between the axis of the connecting rod shaft and the axis of the crank, so that the connecting rod shaft is eccentrically arranged on the crank; a crank pulley is connected to the crank and is coaxially arranged with the crank; A vibrating connecting rod, one end of which is nested with the connecting rod shaft through a bearing, and the other end is provided with a cutting tool; The counterweight structure includes two counterweight parts, and the two counterweight parts are symmetrically arranged on both sides of the crankshaft pulley based on the axis of the crankshaft pulley, and each counterweight part includes a counterweight pulley, wherein the two counterweight pulleys are connected to the crankshaft pulley through a vibrating synchronous belt, and the crankshaft pulley is circumscribed on the vibrating synchronous belt; the counterweight tensioner is arranged above and below the crankshaft pulley, and the counterweight tensioner is inscribed on the vibrating synchronous belt.

2. The symmetrical vibration drive mechanism according to claim 1, characterized in that: The pulley structure includes: A driving pulley connected to the output end of the vibration motor; The driving tension wheel is arranged above and below the driving pulley; Drive timing belt, one end of which is connected to the drive pulley and the other end is connected to the drive tension pulley; A main pulley is circumscribed on the driving synchronous belt and is coaxially arranged with the crank, and the main pulley is located between the driving pulley and the driving tensioning pulley, wherein the crank is driven to rotate by the main pulley; The two slave pulleys are symmetrically arranged on the upper and lower sides of the main pulley with the axis of the main pulley as the reference, and the two slave pulleys are inscribed on the driving synchronous belt.

3. The symmetrical vibration drive mechanism according to claim 2, characterized in that: Crankset includes: a first crankshaft, one side of which is connected to the main pulley; The first crankshaft pressing block is arranged vertically with respect to the first crankshaft, and the first crankshaft and the first crankshaft are connected to each other to clamp and fix one end of the connecting rod shaft, wherein the axis of the first crankshaft and the axis of the connecting rod shaft are arranged vertically; a second crankshaft, one side of which is connected to the crankshaft pulley; The second crank block is distributed up and down with the second crank shaft, and the other end of the connecting rod shaft is clamped and fixed by the connection between the second crank block and the second crank shaft, wherein the axis of the second crank shaft and the axis of the connecting rod shaft are arranged up and down, and the vibrating connecting rod is located between the other side of the first crank shaft and the other side of the second crank shaft.

4. The symmetrical vibration drive mechanism according to claim 3, characterized in that: The opposite sides of the first crankshaft and the second crankshaft are arranged in a stepped shape, respectively provided with a first step surface and a second step surface, and the thickness of the first step surface is greater than the thickness of the second step surface, wherein the first step surface and the second step surface on the first crankshaft respectively correspond one-to-one with the first step surface and the second step surface on the second crankshaft, and the end of the vibration connecting rod connected to the connecting rod shaft corresponds to the position of the second step surface.

5. The symmetrical vibration drive mechanism according to claim 3, characterized in that: It also includes a box body, which is hollow inside, and a part of the vibration structure and a part of the counterweight structure are located inside the box body, and another part of the vibration structure and another part of the counterweight structure are located outside the box body, wherein a bearing is nested at one end of the first crankshaft connected to the main pulley, and the bearing is nested with one side wall of the box body, and a bearing is nested at one end of the second crankshaft connected to the crankshaft pulley, and the bearing is nested with the other side wall of the box body.

6. The symmetrical vibration drive mechanism according to claim 5, characterized in that: An inspection port is provided on the box body, and an inspection cover is provided at a position corresponding to the inspection port, and the inspection cover is detachably connected to the box body by fasteners, wherein the position of the inspection port corresponds to the position of the vibration structure, and the inspection port can be opened or sealed by the inspection cover.

7. The symmetrical vibration drive mechanism according to claim 5, characterized in that: The counterweight part also includes a counterweight crankshaft, and the counterweight crankshaft is U-shaped, wherein one side of the open end of the counterweight crankshaft is connected to the counterweight pulley, and bearings are respectively provided on both sides of the open end of the counterweight crankshaft, and the two bearings are respectively nested with the two side walls of the box body.

8. The symmetrical vibration drive mechanism according to claim 7, characterized in that: The first crankshaft, the first crank pressure block, the second crankshaft, the second crank pressure block and the counterweight crankshaft in the counterweight part in the vibration structure are located outside the box; the crankshaft pulley in the vibration structure and the counterweight pulley in the counterweight part are located outside the box.

9. The symmetrical vibration drive mechanism according to claim 5, characterized in that: It also includes a belt partition, and one side of the belt partition is in contact with the inner side of the driving synchronous belt, and the other side of the belt partition is connected to the box body, wherein the two slave pulleys are respectively connected to the box body through the pulley shaft, and the main pulley is connected to the box body.

10. A cutting head, characterized in that: It comprises the symmetrical vibration drive mechanism according to any one of claims 1 to 9.

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