TWM595110U - Improved elastic roller structure - Google Patents

Abstract

The present invention provides an improved elastic roller structure, which includes a wheel frame assembled on a shaft. A plurality of positioning grooves distributed radially are formed on the wheel frame. An elastic element is respectively arranged in the plurality of positioning grooves. A friction ring is sleeved on the wheel frame, and there is a gap between the friction ring and the wheel frame. The friction ring is provided with an equal number of pushing portions corresponding to the positioning grooves, and the pushing portions are implanted into the In the positioning groove, and the elastic element is located between the pushing portion and the positioning groove, thereby improving the problem that the elastic element installed in the traditional elastic roller is easy to skew or even be damaged.

Description

Improved elastic roller structure

The present invention relates to the structure technology of rollers, and particularly relates to an improved elastic roller structure.

It is well known that the substrates that make up optoelectronic products such as liquid crystal displays, solar panels or touch panels are usually moved to multiple processing area stations for processing by the transportation line. The transmission line can be formed by multiple transmission wheels. The plurality of transmission wheels are arranged on the same horizontal plane and are rotated by the drive of the motor, and then the substrate is moved to the processing area station.

It is also known that the conveyor line may further include a plurality of rollers, the rollers are arranged adjacent to the transmission wheels, and the substrate is pressed on the transmission wheels by the rollers, so that the substrates can be on the conveyor line Accept friction drive and stable movement.

However, because the thickness of the substrates of optoelectronic products such as liquid crystal displays, solar panels or touch panels are different, and the axes of the existing rollers and transmission wheels are fixed types, when the conveyor line needs to carry substrates of different thicknesses, The height of the roller needs to be adjusted, and the distance between the roller and the transmission wheel needs to be controlled to meet the thickness of the substrate to be carried. However, the disadvantage of the above method is that the height of the roller needs to be adjusted repeatedly, which causes inconvenience in use and affects the processing efficiency, and needs to be improved urgently.

In order to improve this problem, some manufacturers have developed rollers that can automatically adjust the height. As disclosed in Taiwan Patent No. M415896, an elastic roller structure is adopted. By arranging elastic elements between the friction ring and the shaft, the axis of the friction ring can be elastic Deviate from the axis of the shaft, and without adjusting the axis of the shaft, the diameter of the roller is automatically changed to facilitate friction transmission of substrates of different thicknesses.

However, in the above patent, when the elastic roller is in contact with the substrate, the elastic element is arranged in the normal direction of the shaft, and the reaction force transmitted by the elastic element to the substrate sometimes deviates from the normal direction and becomes The non-positive (that is, non-specific) force component makes the elastic element easily susceptible to deflection or even damage due to the non-specific component force, which in turn affects the durable service life of the elastic roller, and therefore needs to be improved.

In view of the problems in the prior art, the purpose of the present invention is to improve the problem that the elastic element installed in the traditional elastic roller is easy to skew or even be damaged.

To this end, a preferred embodiment of the present invention is to provide an improved elastic roller structure. The specific technical means include: a wheel frame, which is assembled on a shaft, and a plurality of radial distributions are formed on the wheel frame A positioning groove, an elastic element is respectively arranged in the plurality of positioning grooves; and a friction ring sleeved on the wheel frame, and there is a gap between the friction ring and the wheel frame, the friction ring is provided with etc. Counting the pushing portion of the positioning groove, the pushing portion is implanted in the positioning groove, and the elastic element is located between the pushing portion and the positioning groove; wherein, the radial shape The distribution is along the normal of the shaft.

In a further implementation, the pushing portion includes a guide post formed by an inner ring wall of the friction ring extending toward the axis thereof, the guide post is implanted in the positioning groove, and the friction ring passes through the guide The post contacts the elastic element. The elastic element is a compression spring. One end of the elastic element contacts the bottom of the positioning groove, and the other end of the elastic element is provided with a spring seat for providing contact with the guide post.

In a further implementation, the wheel frame includes a first ring body and a second ring body, and the positioning groove is formed between the first ring body and the second ring body. The first ring body is sleeved on the shaft, and the second ring body is sleeved on the outer wall of the first ring.

According to the above technical means, the technical effect produced by the present invention is that the elastic element is guided by the positioning groove formed on the wheel frame, so that the force direction of the elastic element is constrained to the normal direction of the shaft (ie, the radiation direction) ), which in turn promotes the elastic element When the component is stressed, it is compressed and restored along the normal direction of the normal force, so as to improve the durable service life of the elastic roller.

In addition, the relevant technical details on which the new model can be implemented will be described in subsequent embodiments and drawings.

10: shaft

20: wheel frame

21: The first ring body

22: Second ring body

23: positioning groove

231: bottom

232: groove wall

30: Friction ring

31: inner ring wall

32: clearance

33: Pushing Department

331: Guide post

34: Arc convex

35: arc concave

40: elastic element

41: Spring seat

50: transmission wheel

60a, 60b: substrate

h1, h2: thickness

FIG. 1 is a schematic perspective view of the new elastic roller.

FIG. 2 is a cross-sectional view of FIG. 1.

Fig. 3 is a cross-sectional view taken along line A-A of Fig. 2.

FIG. 4 is a usage state diagram of FIG. 2.

FIG. 5 is another usage state diagram of FIG. 2.

FIG. 6 is a usage state diagram of FIG. 3.

First, please refer to FIG. 1, FIG. 2 and FIG. 3 together to disclose the embodiment of the present invention and illustrate the improved elastic roller structure provided by the present invention, including a wheel frame 20 and a friction ring 30. among them:

The wheel frame 20 is sleeved on a shaft 10, and the wheel frame 20 is formed with a plurality of positioning grooves 23 that are radially distributed; more specifically, the radial distribution is along the normal of the shaft 10 In the direction distribution, an elastic element 40 is disposed in each of the plurality of positioning grooves 23, and the elastic element 40 is a compression spring in practice. Further, the wheel frame 20 includes a first ring body 21 and a second ring body 22, the wheel frame 20 is sleeved on the shaft 10 by the first ring body 21, and the second ring body 22 is sleeved It is provided on the outer wall of the first ring body 21 and the positioning groove 23 is formed between the first ring body 21 and the second ring body 22.

The friction ring 30 is sleeved on the wheel frame 20. A gap 32 is provided between the friction ring 30 and the wheel frame 20 to provide a diameter of the friction ring 30 along the axis of the shaft 10 on the outside of the wheel frame 20. To move space; the friction ring 30 is provided with an equal number of pushing parts 33 of the positioning groove 23, the pushing part 33 is implanted in the positioning groove 23, and the elastic element 40 is located on the pushing part 33 and Between the positioning grooves 23. By this, the friction ring 30 is coaxial with the shaft 10, and when the friction ring 30 is pressed by an external force, the axis of the friction ring 30 can be elastically deviated from the axis of the shaft 10 by the elastic element 40 to automatically change the friction ring 30 and the transmission wheel The distance between 50, and by the positioning groove 23 to guide the elastic element 40, the force direction of the elastic element 40 is aligned with the normal direction of the shaft 10; In addition, the outer surface of the friction ring 30 is also formed Two corresponding arc convex portions 34 are formed, and an arc concave portion 35 is formed between the two arc convex portions 34. The arc convex portions 34 and the arc concave portions 35 can enhance the contact force of the wheel surface of the friction ring 30 when the substrate is pressed.

Further, the pushing portion 33 includes a guide post 331 formed by an inner ring wall 31 of the friction ring 30 extending toward the axis thereof, the guide post 331 is implanted in the positioning groove 23, and the friction ring 30 The elastic element 40 is contacted via the guide post 331. One end of the elastic element 40 contacts the bottom 231 of the positioning groove 23, the other end of the elastic element 40 is provided with a spring seat 41, and the guide post 331 contacts the elastic element 40 via the spring seat 41, in other words Since the pushing portion 33 and the elastic element 40 adopt the design of movable contact, when removing or assembling the friction ring 30 and the elastic element 40, the second ring body 22 can be removed from the first ring body 21, so that One side of the positioning groove 23 is open to the outside, and then the friction ring 30 and the elastic element 40 are replaced.

Referring to FIG. 4, when the transmission wheel 50 carries a base plate 60 with a thickness h1, since the distance between the friction ring 30 and the transmission wheel 50 is equal to the thickness h1 of the base plate 60, the base plate 60 accepts the friction ring 30 and the transmission wheel 50's drive and displacement.

Please refer to FIG. 5, when the transmission wheel 50 is carrying a substrate 60 with a thickness h2, since the thickness h2 of the substrate 60 is greater than the distance between the friction ring 30 and the transmission wheel 50, the substrate 60 can press the friction ring upward 30, the friction ring 30 is elastically moved upward along the radial direction of the axis of the shaft 10 within the range of the gap 32, automatically changing the distance between the friction ring 30 and the transmission wheel 50, so that the friction ring 30 and the transmission wheel 50 are driven The base plate 60 is displaced, and the friction ring returns to the original position after the base plate is driven by the spring pressure of the elastic element.

Please refer to FIG. 6, when the substrate 60 b is displaced by the transmission wheel 50, the friction ring 30 is driven to rotate. Since the pushing portion 33 of the friction ring 30 is implanted in the positioning groove 23, the pushing portion 33 is caused by The friction ring 30 rotates to position The groove wall 232 of the groove 23 contacts, and the shaft 10 is pushed through the wheel frame 20 to rotate.

The above examples merely express the preferred embodiments of the present invention, but they should not be construed as limiting the scope of the patent of the present invention. Therefore, this new model shall be subject to the content of the claims defined in the scope of patent application.

10: shaft

20: wheel frame

21: The first ring body

22: Second ring body

23: positioning groove

231: bottom

30: Friction ring

31: inner ring wall

32: clearance

33: Pushing Department

331: Guide post

34: Arc convex

35: arc concave

40: elastic element

41: Spring seat

Claims (6)

An improved elastic roller structure, including: A wheel frame assembled on a shaft, a plurality of positioning grooves distributed radially are formed on the wheel frame, and elastic elements are respectively arranged in the plurality of positioning grooves; and A friction ring is sleeved on the wheel frame, and there is a gap between the friction ring and the wheel frame. The friction ring is provided with an equal number of pushing parts of the positioning groove. Into the positioning groove, and the elastic element is located between the pushing portion and the positioning groove; wherein, the radial distribution is distributed along the normal direction of the shaft. The improved elastic roller structure according to claim 1, wherein the pushing portion includes a guide post formed by an inner ring wall of the friction ring extending toward the axis thereof, and the guide post is implanted in the positioning groove Inside, the friction ring contacts the elastic element via the guide post. The improved elastic roller structure according to claim 1 or 2, wherein the elastic element is a compression spring. The improved elastic roller structure according to claim 3, wherein one end of the elastic element contacts the bottom of the positioning groove, and the other end of the elastic element is provided with a spring seat that provides contact with the guide post. The improved elastic roller structure according to claim 1, wherein the wheel frame includes a first ring body and a second ring body, and the positioning groove is formed between the first ring body and the second ring body. The improved elastic roller structure according to claim 5, wherein the first ring body is sleeved on the shaft, and the second ring body is sleeved on the outer wall of the first ring body.

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