Mortise and tenon type cotton feeding roller device of combing machine

Abstract

The utility model belongs to the technical field of combing machines, and particularly relates to a tenon-and-mortise type cotton feeding roller device of a combing machine. Comprising a cotton feeding roller, a shaft sleeve, a first cotton feeding ratchet wheel, a second cotton feeding ratchet wheel, tenons and mortises, a connecting shaft is arranged in the cotton feeding roller in a penetrating mode, the first cotton feeding ratchet wheel and the second cotton feeding ratchet wheel are provided with connecting holes corresponding to the connecting shaft, the tenons are fixedly arranged at the two ends of the connecting shaft, and the mortises are formed in the centers of the first cotton feeding ratchet wheel and the second cotton feeding ratchet wheel. The mortise and the tenon are in clearance fit, and the section contour line of the mortise and the section contour line of the tenon are both formed by two opposite straight line sections and two opposite arc line sections in an encircling mode. By arranging the tenon and the mortise which cannot rotate mutually, when the first cotton feeding ratchet wheel and the second cotton feeding ratchet wheel drive the cotton feeding roller to operate, slipping of the first cotton feeding ratchet wheel, the second cotton feeding ratchet wheel and the cotton feeding roller can be avoided, it is guaranteed that the first cotton feeding ratchet wheel and the second cotton feeding ratchet wheel rotate synchronously, and normal cotton feeding of the cotton feeding roller is guaranteed.

Description

Technical Field

[0001] This utility model belongs to the field of combing machine technology, specifically relating to a mortise and tenon type cotton feeding roller device for a combing machine. Background Technology

[0002] The speed of the current combing machine has increased from 350 nips to 450-500 nips. The existing feed roller device is a cylindrical and circular hole type. When the combing machine is running at high speed, the left and right feed ratchet wheels slip with the feed roller, causing the left and right feed rollers to be out of sync, which affects the normal operation of the feed movement. Therefore, it is necessary to improve this device to improve the normal feed of the feed roller during the high-speed operation of the combing machine. Utility Model Content

[0003] Therefore, the purpose of this utility model is to provide a tenon-and-mortise type cotton feeding roller device for a combing machine, which aims to overcome the defect of slippage between the left and right cotton feeding ratchet wheels and the cotton feeding roller.

[0004] In order to achieve the above-mentioned objectives of this utility model, the present utility model adopts the following technical solution:

[0005] A combing machine tenon-and-mortise type cotton feeding roller device includes a cotton feeding roller, a bushing, a first cotton feeding ratchet, and a second cotton feeding ratchet. A connecting shaft is disposed through the cotton feeding roller, and the first and second cotton feeding ratchets are provided with connecting holes corresponding to the connecting shaft. The device also includes:

[0006] Tenons are symmetrically fixed at both ends of the connecting shaft, and the maximum width and height of the tenons are both smaller than the diameter of the connecting shaft;

[0007] The mortise is formed at the center of the first and second feed ratchet wheels, and the mortise is located on the side of the connecting hole away from the center of the feed roller. The fit between the tenon and the mortise is a clearance fit. The cross-sectional outline of the mortise and the cross-sectional outline of the tenon are both formed by two opposite straight line segments and two opposite arc segments.

[0008] The distance between two opposite straight segments in the tenon section is 7mm-9mm, and the distance between two opposite straight segments in the mortise section is 7mm-9mm.

[0009] The length of the tenon is less than the length of the mortise. The length of the tenon is 8-9mm, and the length of the mortise is 10-10.5mm.

[0010] Optionally, the tenon has a threaded hole on the side away from the center of the feeding roller, wherein the first feeding ratchet and the second feeding ratchet are threadedly connected to the threaded hole of the tenon by bolts.

[0011] Optionally, the parallelism between the tenons on both sides is less than 0.5 mm.

[0012] Optionally, the connection between the connecting shaft and the connecting hole is a clearance fit, with the diameter of the connecting shaft being 15mm-16mm and the diameter of the connecting hole being 15mm-16mm.

[0013] Optionally, the surfaces of the first and second cotton feeding ratchets are respectively provided with rigid teeth, and the tooth grooves between adjacent rigid teeth are arc-shaped grooves.

[0014] The beneficial effects of this utility model are:

[0015] By using non-rotatable tenons and mortises, the first and second cotton feeding ratchet wheels are ensured to be fixed to the cotton feeding roller. This prevents slippage between the first and second cotton feeding ratchet wheels and the cotton feeding roller during operation, and ensures that the first and second cotton feeding ratchet wheels rotate synchronously, guaranteeing normal cotton feeding. The parallelism between the tenons on both sides is less than 0.5mm, ensuring that the teeth on both sides are symmetrical after the first and second cotton feeding ratchet wheels are installed. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 This is a schematic diagram of the cotton feeding roller in this utility model;

[0019] Figure 3 for Figure 2 Side view;

[0020] Figure 4 This is a schematic diagram of the first cotton feeding ratchet.

[0021] Figure 5 for Figure 4 Sectional view at point GG. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In this technical solution, a mortise and tenon type cotton feeding roller device for a combing machine, such as... Figures 1-5 As shown, it includes a cotton feeding roller 1, a bushing 2, a first cotton feeding ratchet 3, a second cotton feeding ratchet 4, a tenon 9, and a mortise 10.

[0024] like Figures 1-3 As shown, a connecting shaft 8 is installed through the cotton feeding roller 1, and a bushing 2 is fitted on the connecting shaft 8. The first cotton feeding ratchet 3 and the second cotton feeding ratchet 4 are two identical ratchets. The first cotton feeding ratchet 3 and the second cotton feeding ratchet 4 are provided with connecting holes 11 corresponding to the connecting shaft 8. Tenons 9 are symmetrically fixed at both ends of the connecting shaft 8. The maximum width and height of the tenons 9 are both smaller than the diameter of the connecting shaft 8, ensuring that the first cotton feeding ratchet 3 and the second cotton feeding ratchet 4 can be smoothly installed at both ends of the connecting shaft 8. A threaded hole is opened on the side of the tenon 9 away from the center of the cotton feeding roller 1. The first cotton feeding ratchet 3 and the second cotton feeding ratchet 4 are threadedly connected to the threaded hole of the tenon 9 by bolts 7. Washers 5 and elastic washers 6 are provided between the first cotton feeding ratchet 3 and the second cotton feeding ratchet 4 and the bolts 7. The length of the tenon 9 is less than the length of the mortise 10, ensuring that there is space for the washers 5 and elastic washers 6 to be installed. Specifically, the length C of the tenon 9 is 8-9 mm. Figure 5 As shown, the length D of the mortise 10 is 10-10.5mm. The mortise 10 is located at the center of the first feeding ratchet 3 and the second feeding ratchet 4, and is positioned on the side of the connecting hole 11 away from the center of the feeding roller 1. The cross-sectional outline of the mortise 10 and the cross-sectional outline of the tenon 9 are both formed by two opposing straight line segments and two opposing arc segments. The fit between the tenon 9 and the mortise 10 is a clearance fit, and they will not rotate relative to each other, ensuring that the first feeding ratchet 3 and the second feeding ratchet 4 are fixed to the feeding roller 1. When the first feeding ratchet 3 and the second feeding ratchet 4 drive the feeding roller 1, slippage between the first feeding ratchet 3 and the second feeding ratchet 4 and the feeding roller is avoided, and the first feeding ratchet 3 and the second feeding ratchet 4 rotate synchronously, ensuring normal feeding of cotton by the feeding roller 1.

[0025] Specifically, such as Figure 4 As shown, the distance B between the two opposing straight segments in tenon 9 is 7mm-9mm, and the distance A between the two opposing straight segments in mortise 10 is 7mm-9mm. This range can ensure the connection strength between tenon 9 and mortise 10.

[0026] The parallelism between the two tenons 9 is less than 0.05mm, ensuring that the teeth on both sides are symmetrical after the first cotton feeding ratchet 3 and the second cotton feeding ratchet 4 are installed. Specifically, the surfaces of the first cotton feeding ratchet 3 and the second cotton feeding ratchet 4 are respectively provided with rigid gear teeth, and the tooth groove between adjacent rigid gear teeth is an arc-shaped groove 12.

[0027] like Figure 2 and Figure 5 As shown, the connection between the connecting shaft 8 and the connecting hole 11 is a clearance fit. The diameter ΦF of the connecting shaft 8 is 15mm-16mm, and the diameter ΦE of the connecting hole 11 is 15mm-16mm, to prevent the first feed ratchet 3 and the second feed ratchet 4 from shaking after being installed in the connecting shaft 8.

[0028] The combing machine mortise and tenon type cotton feeding roller device provided by this utility model has a cross-sectional outline of the mortise 10 and the tenon 9, both formed by two opposing straight line segments and two opposing arc segments. By setting the tenons 9 and mortise 10 to be mutually non-rotatable, it is ensured that the first cotton feeding ratchet 3 and the second cotton feeding ratchet 4 are fixed to the cotton feeding roller 1. When the first cotton feeding ratchet 3 and the second cotton feeding ratchet 4 drive the cotton feeding roller 1, slippage between the first cotton feeding ratchet 3 and the second cotton feeding ratchet 4 and the cotton feeding roller is avoided, and it is ensured that the first cotton feeding ratchet 3 and the second cotton feeding ratchet 4 rotate synchronously, ensuring normal cotton feeding of the cotton feeding roller 1. The parallelism between the tenons 9 on both sides is less than 0.5mm, ensuring that the teeth on both sides are symmetrical after the first cotton feeding ratchet 3 and the second cotton feeding ratchet 4 are installed.

[0029] The above are merely embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A combing mortise and tenon type gilling roller device, comprising a gilling roller, a shaft sleeve, a first gilling ratchet wheel and a second gilling ratchet wheel, a connecting shaft is arranged through the gilling roller, the first gilling ratchet wheel and the second gilling ratchet wheel are provided with connecting holes corresponding to the connecting shaft, characterized in that, The device also comprises: tenons symmetrically fixed at both ends of the connecting shaft, the maximum width and height of the tenon being less than the diameter of the connecting shaft; a mortise provided at the center of the first and second feed rollers, the mortise being provided on the side of the connecting hole away from the center of the feed roller, the tenon and the mortise being clearance fit, wherein the cross-sectional profile of the mortise and the cross-sectional profile of the tenon are both formed by two opposite straight line segments and two opposite arc line segments; the distance between the two opposite straight line segments in the cross section of the tenon is 7-9mm, and the distance between the two opposite straight line segments in the cross section of the mortise is 7-9mm; the length of the tenon is less than the length of the mortise, the length of the tenon being 8-9mm, and the length of the mortise being 10-10.5mm.

2. The combing lock roller device according to claim 1, characterized in that: a threaded hole is provided on the side of the tenon away from the center of the feed roller, the first and second feed rollers being threadedly connected to the threaded hole of the tenon by bolts.

3. The mortise and tenon gilling roller device according to claim 1, characterized in that: the parallelism between the two tenons is less than 0.5mm.

4. The mortise and tenon gilling roller device according to claim 1, characterized in that: the connecting shaft and the connecting hole are clearance fit, the diameter of the connecting shaft being 15-16mm, and the diameter of the connecting hole being 15-16mm.

5. The mortise and tenon gilling roller device according to claim 1, characterized in that: the surfaces of the first and second feed rollers are respectively provided with rigid teeth, and the tooth slots between adjacent rigid teeth are arc-shaped slots.

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