Saw blade replacing mechanism for cotton gin

Abstract

The utility model discloses a saw blade replacing mechanism for a cotton gin, which relates to the technical field of cotton processing equipment and comprises an output shaft and a saw blade, one end of the output shaft is provided with an inserting block, the middle of the saw blade is provided with an inserting hole matched with the inserting block in an inserting manner, the outside of the inserting hole is connected with a limiting block, and one end of the inserting block is fixedly provided with a bolt. A connecting hole is formed in the limiting block, the bolt is inserted into the connecting hole, one end of the bolt is in threaded connection with a nut, a clamping opening is formed in one side of the limiting block, and the inserting block is inserted into the clamping opening. According to the saw blade replacing device, only one nut needs to be screwed off, the limiting block is pulled out, an old saw blade is taken down, and then a new saw blade can be replaced, so that compared with the process that a plurality of nuts can be completely loosened by using various tools, the process is time-saving, labor-saving, convenient and rapid, and due to the fact that the limiting hole and the positioning hole are respectively matched with the positioning rod in an inserted mode; the stability of the installed saw blade is guaranteed, installation errors are avoided to a large extent, and the working efficiency and the machining quality of the cotton gin are prevented from being affected.

Description

Technical Field

[0001] This utility model relates to the technical field of cotton processing equipment, and in particular to a saw blade replacement mechanism for a cotton gin. Background Technology

[0002] Cotton gins are important equipment used to separate cotton fibers and cotton seeds in cotton processing. The saw blade, as its core component, will wear out after long-term use and needs to be replaced regularly. The existing cotton gin saw blade replacement process is usually cumbersome, requiring operators to use multiple tools to loosen multiple nuts before replacement, which consumes a lot of time and effort. During the replacement process, the stability of the saw blade installation is difficult to guarantee, which can easily lead to installation errors and affect the working efficiency and processing quality of the gin. Therefore, a saw blade replacement mechanism for cotton gins is provided. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a saw blade replacement mechanism for cotton ginning machines. Simply unscrew a nut, remove the limiting block, and take out the old saw blade to replace it with a new one. This is much more time-saving and labor-saving compared to using multiple tools to loosen all the nuts for replacement. Furthermore, the design of limiting holes and positioning holes, which engage with the positioning rod, ensures the stability of the saw blade after installation, minimizing installation errors and preventing any impact on the working efficiency and processing quality of the cotton ginning machine. This overcomes the deficiencies of existing technologies.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A saw blade replacement mechanism for a cotton gin includes an output shaft and a saw blade. One end of the output shaft is provided with an insert block. The middle of the saw blade is provided with an insertion hole that engages with the insert block. A limit block is connected to the outside of the insertion hole. One end of the insert block is fixed with a bolt. The limit block is provided with a connecting hole. The bolt is inserted into the connecting hole and a nut is screwed to one end of the bolt.

[0006] As a further improvement of this utility model: a bayonet is provided on one side of the limiting block, and the insert block is inserted into the bayonet.

[0007] As a further embodiment of this utility model: a positioning rod is fixed at the end of the output shaft and on both sides of the insertion block, and a positioning hole is provided on both sides of the saw blade and on both sides of the insertion hole to form an insertion fit with the positioning rod.

[0008] As a further improvement of this utility model: the limiting block is provided with limiting holes on both sides of the bayonet to form an insertion fit with the two positioning rods.

[0009] As a further improvement of this utility model, the limiting block is fitted with a dust cover, and the dust cover is made of plastic.

[0010] As a further embodiment of this utility model: the outer walls of the opposite sides of the limiting block are fixed with snap-fit ​​blocks, and two snap-fit ​​holes that are symmetrically opened on the side wall of the dust cover to form a snap-fit ​​engagement with the snap-fit ​​blocks are provided. The ends of the two snap-fit ​​blocks are provided with arc-shaped protrusions extending to the outside of the snap-fit ​​holes.

[0011] The beneficial effects of this utility model are as follows:

[0012] Simply unscrew one nut, remove the limit block, and take off the old saw blade to replace it with a new one. This saves time and effort compared to using multiple tools to loosen all the nuts before replacement. It is convenient and quick. Furthermore, the limit holes and positioning holes are designed to cooperate with the positioning rod to ensure the stability of the saw blade after installation, which greatly avoids installation errors and prevents them from affecting the working efficiency and processing quality of the cotton gin. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the external structure of a saw blade replacement mechanism for a cotton ginning machine proposed in this utility model.

[0014] Figure 2 This is a partial structural diagram of a saw blade replacement mechanism for a cotton gin proposed in this utility model.

[0015] Figure 3 This is a partial disassembled structural diagram of a saw blade replacement mechanism for a cotton gin proposed in this utility model.

[0016] Figure 4 This is a schematic diagram of the dust cover structure of a saw blade replacement mechanism for a cotton gin proposed in this utility model.

[0017] Figure 5 This is a schematic diagram of the snap-fit ​​block structure of a saw blade replacement mechanism for a cotton gin proposed in this utility model.

[0018] In the diagram: 1. Output shaft; 2. Saw blade; 3. Dust cover; 4. Insert block; 5. Bolt; 6. Nut; 7. Limiting block; 8. Snap-fit ​​block; 9. Insertion hole; 10. Positioning hole; 11. Positioning rod; 12. Snap-fit ​​hole; 13. Bayonet; 14. Limiting hole; 15. Connecting hole; 16. Arc-shaped protrusion. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] Example 1, referring to Figure 1-5 A saw blade replacement mechanism for a cotton gin includes an output shaft 1 and a saw blade 2. One end of the output shaft 1 is provided with an insert block 4. The middle of the saw blade 2 is provided with an insertion hole 9 that is inserted into the insert block 4. A limit block 7 is connected to the outside of the insertion hole 9. One end of the insert block 4 is fixed with a bolt 5. The limit block 7 is provided with a connecting hole 15. The bolt 5 is inserted into the connecting hole 15 and a nut 6 is screwed to one end of the bolt 5. A bayonet 13 is provided on one side of the limit block 7, and the insert block 4 is inserted into the bayonet 13.

[0021] Positioning rods 11 are fixed at the end of the output shaft 1 and on both sides of the insert block 4. Positioning holes 10 are provided on both sides of the saw blade 2 and the insert hole 9 to form an insertion fit with the positioning rods 11.

[0022] Limiting holes 14 are provided on both sides of the limiting block 7 and located at the bayonet 13, which are designed to engage with the two positioning rods 11.

[0023] Connect the insertion hole 9 and positioning hole 10 of the saw blade 2 to the insertion block 4 and positioning rod 11 of the output shaft 1 respectively. Then, fit the limiting block 7 onto the outside of the insertion block 4 and insert the positioning rod 11 into the limiting hole 14 on the limiting block 7. Then connect the nut 6 and the bolt 5 to fix the saw blade 2.

[0024] When the saw blade 2 needs to be replaced, simply unscrew a nut 6, remove the limit block 7, and take off the old saw blade 2 to replace the new saw blade 2. This method is more time-saving, labor-saving, convenient, and quick compared to the process of using multiple tools to loosen multiple nuts before replacement.

[0025] Example 2 is an optimization based on Example 1. Specifically, the limiting block 7 is fitted with a dust cover 3, and the dust cover 3 is made of plastic.

[0026] The outer walls of the limiting block 7 on both sides are fixed with snap-fit ​​blocks 8. The side wall of the dust cover 3 is symmetrically provided with two snap-fit ​​holes 12 that form a snap-fit ​​engagement with the snap-fit ​​blocks 8. The ends of the two snap-fit ​​blocks 8 are provided with arc-shaped protrusions 16 extending to the outside of the snap-fit ​​holes 12.

[0027] By flattening the dust cover 3 and placing it on the limiting block 7, and then releasing the dust cover 3, the dust cover 3 returns to its initial state through its own deformation, and the two snap-fit ​​blocks 8 are snapped into the snap-fit ​​holes 12 of the dust cover 3, thus realizing the installation of the dust cover 3. The dust cover 3 can prevent impurities from getting on the nut 6 and bolt 5, and avoid the difficulty of disassembling the nut 6 when the saw blade 2 needs to be replaced.

[0028] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A saw blade changing mechanism for a cotton gin, comprising an output shaft (1) and a saw blade (2), characterized in that, One end of the output shaft (1) is provided with a plug (4), and the middle part of the saw blade (2) is provided with a plug hole (9) that forms a plug-in fit with the plug (4). A limit block (7) is connected to the outside of the plug hole (9). One end of the plug (4) is fixed with a bolt (5). The limit block (7) is provided with a connecting hole (15). The bolt (5) is inserted into the connecting hole (15) and a nut (6) is screwed onto one end of the bolt (5).

2. The saw blade replacement mechanism for a cotton gin according to claim 1, characterized in that, The limiting block (7) has a bayonet (13) on one side, and the insert (4) is inserted into the bayonet (13).

3. The saw blade replacement mechanism for a cotton gin according to claim 2, characterized in that, Positioning rods (11) are fixed at the end of the output shaft (1) and on both sides of the insert block (4). Positioning holes (10) that are inserted into the saw blade (2) and on both sides of the insertion hole (9) are provided to form a fitting with the positioning rods (11).

4. The saw blade replacement mechanism for a cotton gin according to claim 3, characterized in that, The limiting block (7) is provided with limiting holes (14) on both sides of the bayonet (13) to form a plug-in fit with the two positioning rods (11).

5. A saw blade replacement mechanism for a cotton gin according to claim 1, characterized in that, The limiting block (7) is fitted with a dust cover (3), and the dust cover (3) is made of plastic.

6. The saw blade replacement mechanism for a cotton gin according to claim 5, characterized in that, The limiting block (7) has two locking blocks (8) fixed on its opposite outer walls. The dust cover (3) has two locking holes (12) symmetrically opened on its side wall to form a locking fit with the locking blocks (8). The ends of the two locking blocks (8) are provided with arc-shaped protrusions (16) extending to the outside of the locking holes (12).

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