An upper shaft mechanism

Abstract

This application discloses an upper shaft mechanism, installed on a winding machine, for conveying an air shaft in the front-to-back direction. The winding machine includes a pair of wall plates arranged opposite each other on the left and right sides. The upper shaft mechanism includes a pair of upper shaft assemblies, which are respectively installed on the inner sides of the pair of wall plates. Each upper shaft assembly includes a slide rail extending in the front-to-back direction, an upper shaft arm slidably mounted on the slide rail, and a push cylinder connected between the slide rail and the upper shaft arm. The top of the slide rail has a sliding groove extending in the front-to-back direction, and the bottom of the upper shaft arm slides in cooperation with the sliding groove. The push cylinder drives the upper shaft arm to extend forward from the front end of the slide rail. The top of the front end of the upper shaft arm has an upward-opening groove, which is configured to accommodate the end of the air shaft. This application achieves high-precision linear conveying of the upper shaft arm through the double cooperation of the sliding groove, the limiting strip, and the stepped part of the upper shaft arm, while ensuring the stability of the conveying. Its structure is simple, its cost is low, and its application range is wide.

Description

Technical Field

[0001] This application relates to the field of film winding equipment technology, and in particular to an upper shaft mechanism. Background Technology

[0002] Most current automatic film winding machines use manual backup air shaft loading, or the automatic backup air shaft loading mechanism is often complex and expensive, which is detrimental to the mechanization, intelligence, and cost control of the equipment. Moreover, traditional shaft loading mechanisms have poor stability and are prone to shaking during operation, posing certain safety hazards. Summary of the Invention

[0003] In order to solve the above-mentioned technical problems, the purpose of this application is to provide an upper shaft mechanism that is simple in structure, low in cost, and stable in operation.

[0004] To achieve the above objectives, this application adopts the following technical solution: an upper shaft mechanism, installed on a winding machine, for conveying an air shaft in the front-to-back direction. The winding machine includes a pair of wall plates arranged opposite each other on the left and right sides. The upper shaft mechanism includes a pair of upper shaft assemblies, which are respectively installed on the inner sides of the pair of wall plates. Each upper shaft assembly includes a slide rail extending in the front-to-back direction, an upper shaft arm slidably mounted on the slide rail, and a push cylinder connected between the slide rail and the upper shaft arm. The top of the slide rail has a sliding groove extending in the front-to-back direction. The bottom of the upper shaft arm slides in cooperation with the sliding groove. The push cylinder drives the upper shaft arm to extend forward from the front end of the slide rail. The top of the front end of the upper shaft arm has an upward-opening groove, which is configured to accommodate the end of the air shaft.

[0005] In the above technical solution, a further preferred embodiment is that a limiting plate is fixedly installed at the rear end of the slide rail, and the limiting plate blocks the rear end of the sliding groove.

[0006] In the above technical solution, a further preferred embodiment is that a pair of left-right opposing limiting strips are installed on the top of the slide rail, each of the limiting strips extending in the front-back direction, and the pair of limiting strips are respectively arranged on the left and right sides of the sliding groove.

[0007] In the above technical solution, it is further preferred that the gap between the pair of limiting strips is smaller than the width of the sliding groove.

[0008] In the above technical solution, a further preferred embodiment is that the left and right side walls of the upper shaft arm are formed with stepped portions that cooperate with the limiting strip.

[0009] In the above technical solution, it is further preferred that the length of each of the limiting strips is the same as the length of the sliding groove.

[0010] In the above technical solution, it is further preferred that the cylinder body of the push cylinder is fixedly installed at the bottom of the slide rail, and the piston rod of the push cylinder is connected to the bottom of the upper shaft arm through a connecting plate.

[0011] In the above technical solution, it is further preferred that the center line of the groove is perpendicular to the center line of the sliding groove.

[0012] In the above technical solution, it is further preferred that the length of the upper shaft arm is greater than the length of the sliding groove.

[0013] Compared with the prior art, this application achieves the following beneficial effects:

[0014] This application achieves high-precision linear conveying of the upper shaft arm through the dual cooperation of the sliding groove, the limiting strip and the stepped part of the upper shaft arm, and ensures the stability of the conveying. Its structure is simple, the cost is low, and the application range is wide. It can realize efficient, safe and automated upper shaft operation of the air shaft. Attached Figure Description

[0015] Figure 1 A three-dimensional structural diagram of an upper shaft mechanism provided in an embodiment of this application;

[0016] Figure 2 for Figure 1 Front view of the upper shaft mechanism;

[0017] Figure 3 for Figure 1 Top view of the upper shaft mechanism.

[0018] Among them: 100, upper shaft mechanism; 10, upper shaft assembly; 1, slide rail; 11, sliding groove; 2, limiting strip; 3, upper shaft arm; 31, step; 32, groove; 33, protrusion; 4, push cylinder; 41, cylinder body; 42, piston rod; 5, limiting plate; 6, connecting plate. Detailed Implementation

[0019] To illustrate the technical content, structural features, achieved objectives, and effects of the application in detail, the technical solutions of the embodiments of this application will be described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. In the following description, for illustrative purposes, numerous specific details are set forth to provide a detailed description of various exemplary embodiments or implementations of the invention. However, various exemplary embodiments may also be implemented without these specific details or in one or more equivalent arrangements. Furthermore, the various exemplary embodiments may differ, but are not necessarily exclusive. For example, the specific shape, structure, and characteristics of the exemplary embodiments may be used or implemented in another exemplary embodiment without departing from the inventive concept.

[0020] This application provides an upper shaft mechanism, which is installed on a winding machine for conveying an air shaft from back to front, in order to complete the work of conveying a replacement air shaft to the winding shaft.

[0021] like Figure 1 , 3 As shown, the upper shaft mechanism 100 includes a pair of upper shaft assemblies 10 arranged opposite each other on the left and right. The pair of upper shaft assemblies 10 are respectively fixedly installed on a pair of wall plates of the winding machine. When the width of the winding machine is different, the pair of upper shaft assemblies 10 can be adjusted accordingly to adapt to different winding machines.

[0022] like Figure 1-3 As shown, each upper shaft assembly 10 includes a slide rail 1, a pair of limiting strips 2, an upper shaft arm 3, and a push cylinder 4. The slide rail 1 serves as the main support for the entire upper shaft assembly 10 and is fixedly installed on the corresponding wall panel, extending in the front-to-back direction. A long, narrow sliding groove 11 is machined on the top of the slide rail 1, extending through the slide rail 1 in the front-to-back direction with its opening facing upwards. A pair of limiting strips 2 are fixedly installed on the top of the slide rail 1 with screws. The pair of limiting strips 2 are arranged opposite each other on the left and right sides of the sliding groove 11, extending in the front-to-back direction. The gap between the pair of limiting strips 2 in the left-to-right direction is smaller than the width of the sliding groove 11 in the left-to-right direction, and the length of each limiting strip 2 is the same as the length of the sliding groove 11.

[0023] The upper shaft arm 3 is a long strip-shaped component whose bottom can be inserted into and slidably engaged with the sliding groove 11, allowing the upper shaft arm 3 to be slidably mounted on the slide rail 1 in the front-to-back direction. The left and right sides of the upper shaft arm 3 form stepped portions 31 that engage with the limiting strips 2. These stepped portions 31 ensure that the upper cross-sectional width of the upper shaft arm 3 is smaller than the lower cross-sectional width. When the upper shaft arm 3 is installed in the slide rail 1, its lower part is placed within the sliding groove 11, and its upper part with the stepped portion 31 is positioned between a pair of limiting strips 2. The inner surface of the limiting strips 2 engages with the vertical surface of the stepped portion 31, forming a sliding pair. The engagement between the upper part and the limiting strips 2, and the engagement between the lower part and the sliding groove 11, greatly enhances the upper shaft arm 3's resistance to lateral forces, torsional loads, and upward lifting capabilities, ensuring that the upper shaft arm 3 can only slide smoothly in the front-to-back direction. The upper shaft arm 3 is longer than the sliding groove 11 in the front-back direction. This ensures that when the upper shaft arm 3 extends forward to its maximum working position, its rear end still has enough length to remain in the sliding groove 11, providing continuous support and guidance. This avoids the problem of end sagging caused by excessive cantilever length and ensures rigidity when bearing the air shaft.

[0024] On the one hand, a pair of limiting strips 2 partially cover the sliding groove, which serves to prevent dust; on the other hand, they limit the lateral displacement of the upper shaft arm 3.

[0025] An arc-shaped groove 32 is machined at the top of the front end of the upper shaft arm 3. The opening of the groove 32 faces upward and is used to support the end of the air shaft. The center line of the groove 32 extends in the left-right direction and is perpendicular to the center line of the sliding groove 11.

[0026] A vertical limiting plate 5 is installed at the rear end of the slide rail 1 to close the rear end of the slide groove 11 and prevent the upper shaft arm 3 from sliding out of the rear end of the slide groove 11.

[0027] The push cylinder 4 serves as the power source, with its cylinder body 41 fixedly mounted on the bottom surface of the slide rail 1 via a bracket. The piston rod 42 of the push cylinder 4 extends in the front-rear direction and is fixedly connected to the bottom of the upper shaft arm 3 via a connecting plate 6. The push cylinder 4 is used to push the upper shaft arm 3 to extend forward from the front end of the sliding groove 11, thereby realizing the upper shaft movement of the air shaft in the front-rear direction.

[0028] In this embodiment, each upper shaft arm 3 has an upward protrusion 33 on the top of the side away from the wall panel, which conforms to the contour undulation of the top of the upper shaft arm 3. The protrusion 33 can cooperate with the journal of the air shaft to ensure stable support of the air shaft during the upper shaft process.

[0029] This application achieves high-precision linear conveying of the upper shaft arm through the dual cooperation of the sliding groove, the limiting strip and the stepped part of the upper shaft arm, and ensures the stability of the conveying. Its structure is simple, the cost is low and the application range is wide.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this application. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this application. Various changes and modifications can be made without departing from the spirit and scope of this application. The scope of protection claimed by this application is defined by the appended claims, specification, and their equivalents.

Claims

1. An upper shaft mechanism installed on a winding machine for conveying an inflatable shaft in a front-rear direction, said winding machine comprising a pair of wall panels disposed opposite to each other in left and right directions, characterized in that, The upper shaft mechanism includes a pair of upper shaft assemblies, which are respectively installed on the inner side of the pair of wall panels. Each upper shaft assembly includes a slide rail extending in the front-rear direction, an upper shaft arm slidably mounted on the slide rail, and a push cylinder connected between the slide rail and the upper shaft arm. The top of the slide rail has a sliding groove extending in the front-rear direction, and the bottom of the upper shaft arm slides in cooperation with the sliding groove. The push cylinder drives the upper shaft arm to extend forward from the front end of the slide rail. The top of the front end of the upper shaft arm has an upward-opening groove, which is configured to accommodate the end of the air shaft.

2. The upper shaft mechanism according to claim 1, characterized by A limiting plate is fixedly installed at the rear end of the slide rail, and the limiting plate blocks the rear end of the sliding groove.

3. The upper shaft mechanism according to claim 1, characterized in that, The top of the slide rail is equipped with a pair of left and right opposite limiting strips, each of which extends in the front-back direction. The pair of limiting strips are respectively arranged on the left and right sides of the slide groove.

4. The upper shaft mechanism according to claim 3, characterized in that, The gap between the pair of limiting strips is smaller than the width of the sliding groove.

5. The upper shaft mechanism according to claim 4, characterized in that, The left and right walls of the upper shaft arm have stepped portions that cooperate with the limiting strip.

6. The upper shaft mechanism according to claim 3, characterized in that, The length of each of the aforementioned limiting strips is the same as the length of the aforementioned sliding groove.

7. The upper shaft mechanism according to claim 1, characterized in that, The cylinder body of the push cylinder is fixedly installed at the bottom of the slide rail, and the piston rod of the push cylinder is connected to the bottom of the upper shaft arm through a connecting plate.

8. The upper shaft mechanism according to claim 1, characterized in that, The center line of the groove is perpendicular to the center line of the sliding groove.

9. The upper shaft mechanism according to claim 1, characterized in that, The length of the upper shaft arm is greater than the length of the sliding groove.

Images