Shifting wheel assembly

Abstract

The utility model belongs to the technical field of carrier tape conveying mechanisms, and particularly relates to a dial wheel assembly which comprises a fixing seat, a dial wheel rotationally connected with the fixing seat, an arc-shaped pressing plate and a suspension support, a plurality of protruding teeth are annularly arranged on the outer side of the dial wheel, the arc-shaped pressing plate is located above the dial wheel through the suspension support, and the arc-shaped pressing plate is located above the dial wheel through the suspension support. A gap for a carrier tape to penetrate is reserved between the shifting wheel and the arc-shaped pressing plate, the arc length of the arc-shaped pressing plate is larger than the tooth distance between the two protruding teeth, and radial pressure capable of keeping attached to the protruding teeth can be continuously provided for the carrier tape. The inner surface of the arc-shaped pressing plate is pressed and attached to the top surface of the carrier tape, so that the positioning holes or the positioning blocks on the carrier tape are matched with the convex teeth, and the situation that the positioning holes or the positioning blocks are separated out of the convex teeth in the radial direction is reduced. According to the invention, the working speed can be greatly improved, and the defect of poor positioning caused by tripping or displacement of the carrier tape is overcome.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of carrier tape conveying mechanism, and particularly relates to a poking wheel assembly. BACKGROUND

[0002] The carrier tape is a material belt with positioning holes or positioning blocks along the length direction, and the poking wheel is provided with a peripheral convex tooth, and the tooth is matched with the positioning holes or the positioning blocks, and the rotation of the poking wheel is used to realize the propulsion of the material belt. Figure 1 The convex spur is matched with the material belt hole during the material pulling, and with the rotation of the poking wheel, each convex spur is sequentially inserted into the material belt hole on the mesh material belt, and the mesh material belt does not slip, so that the mesh material belt reliably advances, but the structure has the following defects: the material belt hole is easily separated from the convex spur when the poking wheel rotates at high speed, so that the carrier tape jumps off or shifts. UTILITY MODEL CONTENTS

[0003] The utility model aims at providing a poking wheel assembly, and aims at solving the technical problems in the prior art.

[0004] In order to achieve the above-mentioned purpose, the poking wheel assembly provided by the utility model embodiment comprises a fixing seat, a poking wheel rotationally connected with the fixing seat, a plurality of convex teeth arranged on the outer side of the poking wheel, an arc-shaped pressing plate and a suspension support, the arc-shaped pressing plate is located above the poking wheel through the suspension support, a gap for the carrier tape to pass through is left between the poking wheel and the arc-shaped pressing plate, the arc length of the arc-shaped pressing plate is greater than the tooth spacing of the two convex teeth, and the arc-shaped pressing plate can continuously provide the radial pressure for the carrier tape to keep in close contact with the convex teeth.

[0005] Optionally, the arc length of the arc-shaped pressing plate is a, and the outer circle diameter formed by the tooth height of the plurality of convex teeth is b, wherein a = 0.25b.

[0006] Optionally, the arc-shaped pressing plate is provided with a bent plate body upwardly extended at one end close to the input direction of the carrier tape.

[0007] Optionally, the suspension support is provided with an inclined guide column at the top, an elastic piece is sleeved on the guide column, a mounting seat is provided with a guide hole corresponding to the guide column at the bottom, a stop step is formed on the inner wall of the guide hole, and the bottom end of the elastic piece abuts against the suspension support and the top end abuts against the stop step.

[0008] Optionally, the guide column is provided with two guide columns, and the two guide columns are arranged in the axial direction of the poking wheel.

[0009] Optionally, a micro switch and a buzzer are further included, the micro switch is arranged at the bottom of the assembly seat and the actuating spring is directed towards the hanging support, and the buzzer is fixed to the top of the assembly seat.

[0010] Optionally, a support arm is further included, the top end of the support arm is connected with the assembly seat, and the bottom end is connected with the fixing seat.

[0011] Optionally, a horizontally arranged guide plate is further included, the guide plate is concavely provided with a plurality of guide grooves along the conveying direction of the carrier tape.

[0012] The above one or more technical solutions in the dial wheel assembly provided by the embodiment of the present application have at least one of the following technical effects: the inner surface of the arc-shaped pressing plate is pressed and attached to the top surface of the carrier tape, so that the positioning hole or the positioning block on the carrier tape is kept in cooperation with the protruding teeth, and the situation that the positioning hole or the positioning block is separated from the protruding teeth in the radial direction is reduced; compared with the prior art, the present application can greatly improve the working speed and solve the defect of poor positioning caused by the carrier tape jumping or shifting. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0014] Figure 1 The structural diagram of the arc-shaped pressing plate provided by the embodiment of the present application.

[0015] Figure 2 The structural diagram of the dial wheel assembly provided by the embodiment of the present application.

[0016] Figure 3 The longitudinal section schematic view of Figure 2 .

[0017] In the drawings, various reference signs represent:

[0018] 1 - fixing seat 11 - dial wheel 111 - protruding teeth

[0019] 2 - hanging support 21 - arc-shaped pressing plate 211 - bent plate body

[0020] 22 - guide column 23 - elastic member 24 - assembly seat

[0021] 241 - guide hole 242 - abutting step 25 - micro switch

[0022] 26 - support arm 3 - carrier tape 31 - protrusion

[0023] 4 - guide plate 41 - guide groove. DETAILED DESCRIPTION

[0024] Embodiments of the present application will be described below in detail, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are intended to explain the embodiments of the present application, and cannot be understood as a limitation of the present application.

[0025] In the description of the embodiments of the present application, it should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only intended to facilitate the description of the embodiments of the present application and simplify the description, and therefore cannot be understood as indicating or implying that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0026] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified and limited.

[0027] In the embodiments of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, can be fixedly connected, or can be detachably connected, or can be integrated; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium; can be the communication or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0028] In one embodiment of the present application, as Figures 1 to 3As shown, the dial wheel assembly is provided, comprising a fixed seat 1, a dial wheel 11 rotationally connected with the fixed seat 1, a plurality of protrusions 111 arranged on the outer side of the dial wheel 11, an arc-shaped pressing plate 21, and a suspension bracket 2, wherein the arc-shaped pressing plate 21 is located above the dial wheel 11 through the suspension bracket 2, a gap is left between the dial wheel 11 and the arc-shaped pressing plate 21 for the belt 3 to pass through, the arc length of the arc-shaped pressing plate 21 is greater than the tooth spacing of the two protrusions 111, and the arc-shaped pressing plate 21 can continuously provide the radial pressure of the belt 3 in close contact with the protrusions 111. Specifically, the dial wheel assembly further comprises a rotating shaft and a driving motor, the end of the rotating shaft is rotationally connected with the fixed seat 1, and the dial wheel 11 is provided with two, and the two dial wheels 11 are coaxially arranged on the rotating shaft, and the main shaft of the driving motor is drivingly connected with the end of the rotating shaft through a synchronous belt. The inner surface of the arc-shaped pressing plate 21 is pressed against the top surface of the belt 3, so that the positioning hole or positioning block on the belt 3 is kept in cooperation with the protrusions 111, and the situation that the positioning hole or positioning block is separated from the protrusions 111 in the radial direction is reduced.

[0029] In an embodiment of the present application, as shown in Figure 1 The arc length of the arc-shaped pressing plate 21 is a, and the outer circle diameter formed by the tooth height of the plurality of protrusions 111 is b, wherein a=0.25b. Specifically, the belt 3 of the present embodiment is provided with a plurality of hollow blocks arranged in a longitudinal and transverse manner, the hollow blocks form concave cavities on the top surface of the belt 3 and form protrusions 31 on the bottom surface, the arc length of the arc-shaped pressing plate 21 is lengthened, the number of the protrusions 31 on the belt 3 cooperating with the protrusions 111 is increased, and the positioning effect on the belt 3 is further improved, which is especially suitable for 90° conveying reversing, such as changing the original horizontal conveying belt 3 into vertical conveying after passing through the dial wheel 11.

[0030] In an embodiment of the present application, as shown in Figure 1 The arc-shaped pressing plate 21 is provided with a bending plate body 211 upwardly extended at one end close to the input direction of the belt 3. Specifically, the bending plate body 211 is integrally formed at the end of the arc-shaped pressing plate 21, and the inclination angle of the bending plate body 211 is 45°, which facilitates the feeding of the material head.

[0031] In an embodiment of the present application, as shown in Figures 1 to 2As shown, the top of the suspension bracket 2 is provided with an inclined guide column 22, and an elastic member 23 is sleeved on the guide column 22, and the bottom of the assembly seat 24 is provided with a guide hole 241 corresponding to the guide column 22, and the inner wall of the guide hole 241 is provided with an abutting step 242, and the bottom end of the elastic member 23 abuts against the suspension bracket 2, and the top end abuts against the abutting step 242. Specifically, the elastic member 23 is a spring coaxially sleeved on the guide column 22, and the spring continuously provides the arc-shaped pressing plate 21 with an elastic force for keeping the top surface of the carrier tape 3, so that the rigid force is adjusted to an elastic force, on the one hand, the friction between the inner surface of the arc-shaped pressing plate 21 and the top surface of the carrier tape 3 is avoided from being too large, and on the other hand, the carrier tape 3 with more thickness sizes can be adapted, thereby reducing the situation that the surface of the carrier tape 3 is pressed and scratched, and widening the application range of the embodiment.

[0032] In an embodiment of the utility model, as shown in Figure 1 The two guide columns 22 are arranged along the axial direction of the dial 11. Specifically, springs are sleeved on the two guide columns 22 to improve the uniformity of the force received by the carrier tape 3.

[0033] In an embodiment of the utility model, as shown in Figures 2 to 3 The utility model also comprises a micro switch 25 and a buzzer (not shown in the figure), the micro switch 25 is arranged at the bottom of the assembly seat 24 and the actuating spring plate faces the suspension bracket 2, and the buzzer is fixed to the top of the assembly seat 24. Specifically, the utility model also comprises an information processor, the micro switch 25 is electrically connected with the information processor, the buzzer is electrically connected with an external power supply through the information processor, when the carrier tape 3 is stuck in the gap, the arc-shaped pressing plate 21 is warped outward along the radial direction, the suspension bracket 2 is driven to move, in the process, the guide column 22 and the guide hole 241 are in sliding fit, and the spring is compressed, if the top surface of the suspension bracket 2 triggers the micro switch 25, the micro switch 25 transmits an electrical signal to the information processor, and the information processor transmits a working signal to the buzzer, so that the effect of tape sticking alarm is achieved.

[0034] In an embodiment of the utility model, as shown in Figure 2 The utility model also comprises a support arm 26, the top end of the support arm 26 is connected with the assembly seat 24, and the bottom end is connected with the fixed seat 1. Specifically, the support arm 26 is provided with a pair, the support arm 26 is arranged on the two sides of the assembly seat 24, the top end of the support arm 26 is fixedly connected with the side of the assembly seat 24 through a screw, the bottom end of the support arm 26 is provided with a connecting plate matched with the shape of the top of the fixed seat 1, the connecting plate is provided with a screw counterbore, and the bottom end of the support arm 26 is connected with the top of the fixed seat 1 through a screw.

[0035] In an embodiment of the utility model, asFigure 3 The horizontal arrangement guide plate 4 is concave with a plurality of guide grooves 41 along the conveying direction of the carrier tape 3. Specifically, the guide plate 4 is arranged on the top of a workbench (not shown in the figure), the plurality of guide grooves 41 are arranged at equal intervals along the axial direction of the dial 11 (the width direction of the carrier tape 3), and the guide grooves 41 are in sliding fit with the positioning protrusions 31 on the bottom surface of the carrier tape 3 during transportation of the carrier tape 3, which is conducive to reducing the situation that the carrier tape 3 deviates from the axial direction of the dial 11.

[0036] The above merely describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A dial wheel assembly comprising a fixed seat, a dial wheel in rotational connection with the fixed seat, the outer side of the dial wheel being provided with a plurality of protruding teeth, characterized in that: The arc-shaped pressing plate is located above the dial wheel through the hanging support, a gap is left between the dial wheel and the arc-shaped pressing plate for the belt to pass through, the arc length of the arc-shaped pressing plate is greater than the tooth spacing of the two convex teeth, and the arc-shaped pressing plate can continuously provide the radial pressure for the belt to keep in contact with the convex teeth.

2. The dial wheel assembly of claim 1, wherein: The arc length of the arc-shaped pressing plate is a, and the outer circle diameter formed by the tooth height of the several convex teeth is b, wherein a=0.25b.

3. The dial wheel assembly of claim 1, wherein: The arc-shaped pressing plate is provided with a bending plate body upward at one end close to the input direction of the belt.

4. The dial wheel assembly of claim 1, wherein: The top of the hanging support is provided with an inclined guide column, an elastic member is sleeved on the guide column, the bottom of the assembly seat is provided with a guide hole corresponding to the guide column, an abutting step is formed on the inner wall of the guide hole, and the bottom end of the elastic member abuts against the hanging support and the top end abuts against the abutting step.

5. The dial wheel assembly of claim 4, wherein: The guide column is provided with two guide columns, and the two guide columns are arranged in the axial direction of the dial wheel.

6. The dial wheel assembly of claim 4, wherein: The micro switch is arranged on the bottom of the assembly seat, and the actuating spring plate faces the hanging support.

7. The dial wheel assembly of claim 4, wherein: The support arm is connected to the top of the assembly seat and the bottom of the fixing seat.

8. The dial wheel assembly of claim 1, wherein: The horizontal guide plate is provided with a plurality of guide grooves in the conveying direction of the belt.

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