Aluminum alloy movable cover plate with anti-thermal deformation function

Abstract

The utility model discloses an aluminium alloy movable cover plate with anti-thermal deformation function, including aluminium alloy cover plate skeleton, steel needle cloth edge clamp and steel needle cloth, steel needle cloth is fixed on the lower end surface of aluminium alloy cover plate skeleton through steel needle cloth edge clamp, be equipped with steel isothermal balance spare in aluminium alloy cover plate skeleton, and steel isothermal balance spare and aluminium alloy cover plate skeleton are contact type connection. Thus can guarantee that steel isothermal balance spare and aluminium alloy cover plate skeleton synchronous temperature rise and synchronous deformation, eliminated aluminium alloy and steel because of different thermal expansion coefficient and led to steel needle cloth two ends low, the middle high bow bridge arc shape deformation, namely eliminated the defect that the cotton carding machine led to the cotton carding quality unstable because of deformation. If the heat insulation layer is added between steel needle cloth and steel needle cloth edge clamp and aluminium alloy cover plate skeleton, the anti-thermal deformation effect is better.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of textile machinery, in particular to a movable flat of a carding machine. BACKGROUND

[0002] In the cotton spinning production process, the carding machine is used to open, evenly mix, separate and remove impurities of the cotton roll or oil cotton layer raw material delivered from the previous process, and finally to bundle the cotton into a sliver, which is regularly stored in a sliver can for use in the subsequent process.

[0003] The aluminum alloy movable flat is a key component for the carding machine to achieve separation and impurity removal. However, due to the influence of various factors such as continuous friction during the working process of the movable flat, the temperature of the movable flat continuously rises. The existing aluminum alloy movable flat structure, as shown in FIG. 1, is composed of an aluminum alloy flat skeleton 1, a steel wire cloth edge clamp 2, and a steel wire cloth 3. The steel wire cloth 3 is fixed on the lower end surface of the aluminum alloy flat skeleton 1 through the steel wire cloth edge clamp 2. The existing carding machine generally has unstable carding quality. The technical requirements for using under constant temperature conditions are usually adopted. Even so, although the stability is improved, it still cannot be completely solved. For the continuous working state, the carding quality still fluctuates. The applicant has carried out in-depth research on this issue. Figure 1 As is known to all, the thermal expansion coefficient of aluminum alloy is 24.5x10 -6 / ℃, while the thermal expansion coefficient of steel is only 12.1x10 -6 / ℃. The thermal expansion coefficient of aluminum alloy is more than twice that of steel. During the working process of the carding machine, the steel wire cloth 3, the steel wire cloth edge clamp 2, and the aluminum alloy flat skeleton 1 will all be heated synchronously. Since the thermal expansion coefficient of aluminum alloy is more than twice that of steel, the temperature of the carding machine will continuously rise during long-time working. The deformation amount of the aluminum alloy flat skeleton 1 is more than twice that of the combination of the steel wire cloth 3 and the steel wire cloth edge clamp 2. This must result in the upper end of the entire aluminum alloy movable flat being longer and the lower end being shorter. The deformation amount distribution structure of the entire aluminum alloy movable flat causes the steel wire cloth to present an arch bridge arc deformation with low ends and high middle. This deformation is the main reason for the unstable carding quality of the carding machine. In order to improve the carding quality of the carding machine, the influence of the above thermal deformation on the steel wire cloth must be completely eliminated. The present application aims to provide an aluminum alloy movable flat with anti-thermal deformation function.

[0004] SUMMARY

[0005] The technical solution adopted by the present application is as follows:

[0006] ​The utility model provides an aluminium alloy movable cover plate with anti-thermal deformation function, which comprises an aluminium alloy cover plate framework, a steel card clothing side clamp and a steel card clothing, the steel card clothing is fixed on the lower end face of the aluminium alloy cover plate framework through the steel card clothing side clamp, and characterized in that a steel isothermal balance piece is fixed in the aluminium alloy cover plate framework.

[0007] Further, the steel isothermal balance piece is fixedly connected with the aluminium alloy cover plate framework in a contact mode.

[0008] Still further, the steel isothermal balance piece is a steel rod piece.

[0009] Still further, the steel rod piece is in a double-end stud structure with a threaded segment arranged at each end of the rod body.

[0010] Still further, the steel rod piece is sleeved in an inner hole arranged at the upper portion of the aluminium alloy cover plate framework, and the two ends of the steel rod piece are fixed through fasteners, and the steel rod piece is parallel to the steel card clothing side clamp.

[0011] Still further, the steel rod piece and the aluminium alloy cover plate framework are fixedly connected in an integrated mode through interference fit, and are located in the inner portion of the upper portion of the aluminium alloy cover plate framework and are parallel to the steel card clothing side clamp.

[0012] Still further, the steel rod piece and the aluminium alloy cover plate framework are fixedly connected in an integrated mode through embedding, and are located in the inner portion of the upper portion of the aluminium alloy cover plate framework and are parallel to the steel card clothing side clamp.

[0013] Further, the steel isothermal balance piece comprises a steel rod piece and two steel ear seats, the upper ends of the two steel ear seats are connected with the two ends of the steel rod piece in a contact mode, and the lower ends of the two steel ear seats are connected with the steel card clothing side clamp in a contact mode.

[0014] Still further, the steel rod piece is sleeved in an inner hole arranged at the upper portion of the aluminium alloy cover plate framework, and the steel rod piece is parallel to the steel card clothing side clamp.

[0015] Still further, the steel rod piece is sleeved in an inner hole arranged at the upper portion of the aluminium alloy cover plate framework, and the two ends of the steel rod piece are fixedly connected with the two steel ear seats respectively.

[0016] Still further, the steel rod piece and the aluminium alloy cover plate framework are fixedly connected in an integrated mode through interference fit, and are located in the inner portion of the upper portion of the aluminium alloy cover plate framework, and the two ends of the steel rod piece are fixedly connected with the two steel ear seats respectively.

[0017] Still further, the steel rod piece and the aluminium alloy cover plate framework are fixedly connected in an integrated mode through embedding, and are located in the inner portion of the upper portion of the aluminium alloy cover plate framework, and the two ends of the steel rod piece are fixedly connected with the two steel ear seats respectively.

[0018] Further, a heat insulation pad or layer is arranged between the steel card clothing and the steel card clothing holder and the aluminum alloy cover plate framework.

[0019] Since the steel isothermal balancing member is arranged in the aluminum alloy cover plate framework and is fixedly connected with the aluminum alloy cover plate framework in a contact mode, the steel isothermal balancing member and the aluminum alloy cover plate framework can be synchronously heated and deformed, and the arch bridge arc deformation of the steel card clothing caused by the different thermal expansion coefficients of the aluminum alloy and the steel, i.e. the low ends and high middle of the steel card clothing, is eliminated, and the defects of the cotton carding machine caused by the deformation and the unstable cotton carding quality are eliminated. If a heat insulation layer is arranged between the steel card clothing and the steel card clothing holder and the aluminum alloy cover plate framework, the effect of resisting thermal deformation is better. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 Fig. 1 is a schematic view of the end face structure of the existing aluminum alloy movable cover plate of the cotton carding machine;

[0021] Figure 2 Fig. 2 is a schematic view of the thermal deformation of the existing aluminum alloy movable cover plate of the cotton carding machine;

[0022] Figure 3 Fig. 3 is a schematic view of the end face structure of the present application;

[0023] Figure 4 Fig. 4 is a schematic view of Figure 3 Fig. 5 is a schematic view of the A-A sectional structure;

[0024] Figure 5 Fig. 6 is an exploded view of the structure of the present application;

[0025] Figure 6 Fig. 7 is a schematic view of Example 4;

[0026] Figure 7 Fig. 8 is a schematic view of Example 7;

[0027] Fig. 1 is a schematic view of the end face structure of the existing aluminum alloy movable cover plate of the cotton carding machine;

[0028] 4-steel isothermal balancing member; 41-rod body; 42-threaded segment; 5-fastener; 6-steel ear seat; 7-heat insulation layer. DETAILED DESCRIPTION

[0029] The present application will be further described below in combination with the drawings and specific examples.

[0030] Example 1: an aluminum alloy movable cover plate with a thermal deformation resistance function, as shown in Fig. 1, comprising an aluminum alloy cover plate framework 1, a steel card clothing holder 2 and a steel card clothing 3, the steel card clothing 3 is fixed on the lower end face of the aluminum alloy cover plate framework 1 through the steel card clothing holder 2, and a steel isothermal balancing member 4 is fixed in the aluminum alloy cover plate framework 1. Figures 3-5 Example 1: an aluminum alloy movable cover plate with a thermal deformation resistance function, as shown in Fig. 1, comprising an aluminum alloy cover plate framework 1, a steel card clothing holder 2 and a steel card clothing 3, the steel card clothing 3 is fixed on the lower end face of the aluminum alloy cover plate framework 1 through the steel card clothing holder 2, and a steel isothermal balancing member 4 is fixed in the aluminum alloy cover plate framework 1.

[0031] In this example, the steel isothermal balancing component 4 is a steel rod with threaded sections 42 at both ends of the rod body 41, which is a double-ended stud structure; an inner hole is provided inside the upper end of the aluminum alloy cover plate frame 1, and the steel rod is fitted into the inner hole at the upper end of the aluminum alloy cover plate frame 1. Both ends are fixed to the two end faces of the aluminum alloy cover plate frame 1 by fasteners 5. The steel rod is parallel to the steel needle cloth edge clamp 2.

[0032] Example 2: The difference from Example 1 is that the steel rod and the aluminum alloy cover plate frame 1 are integrally fixedly connected by an interference fit, and the steel rod is located inside the upper part of the aluminum alloy cover plate frame 1, parallel to the steel needle cloth edge clamp 2.

[0033] Example 3: The difference from Example 1 is that the steel rod is fixedly connected to the aluminum alloy cover plate frame 1 in an embedded manner, and is located inside the upper part of the aluminum alloy cover plate frame 1, parallel to the steel needle cloth edge clamp 2.

[0034] Example 4: The difference from Example 1 is as follows: Figure 6 As shown, the steel isothermal balancing component 4 includes a steel rod and two steel lugs 6. The upper ends of the two steel lugs 6 are in contact with the two ends of the steel rod, and the lower ends of the two steel lugs 6 are in contact with the steel needle cloth edge clamp 2. In this example, the steel rod is fitted into the inner hole at the upper end of the aluminum alloy cover plate frame 1, and the two ends of the steel rod are fixedly connected to the steel lugs 6 respectively.

[0035] Example 5: The difference from Example 4 is that the steel rod and the aluminum alloy cover plate frame 1 are integrally fixedly connected by interference fit, and the steel rod is located inside the upper end of the aluminum alloy cover plate frame 1. The two ends of the steel rod are fixedly connected to the steel lugs 6 respectively.

[0036] Example 6: The difference from Example 4 is that the steel rod is fixedly connected to the aluminum alloy cover plate frame 1 in an embedded manner, and is located inside the upper part of the aluminum alloy cover plate frame 1. The two ends of the steel rod are fixedly connected to the steel ear seat 6 respectively.

[0037] The structures of Examples 4 to 6 are all equivalent structures. Their common feature is that a steel frame is formed by combining steel rods, steel lugs 6, steel needle cloth edge clamps 2 and steel needle cloth 3 to reduce the influence of the thermal deformation of the aluminum alloy cover plate skeleton 1 on the steel needle cloth 3, thereby reducing the deformation of the steel needle cloth 3 due to the thermal deformation of the aluminum alloy cover plate skeleton 1.

[0038] Example 7: In Example 1, a heat insulation pad or heat insulation layer 7 is added between the steel needle cloth 3 and the steel needle cloth side clamp 2 and the aluminum alloy cover plate frame 1, such as... Figure 7As shown, this can cut off the heat transfer between the steel card clothing 3 and the aluminum alloy cover plate framework 1 and the steel card clothing edge clamp 2, so that the steel card clothing 3 is always in a horizontal state during the carding and does not deform, ensuring the stability of the carding quality.

Claims

1. An aluminum alloy movable cover plate with heat deformation resistance, comprising an aluminum alloy cover plate skeleton (1), a steel wire gauze edge clamp (2) and a steel wire gauze (3), the steel wire gauze (3) being fixed on the lower end surface of the aluminum alloy cover plate skeleton (1) through the steel wire gauze edge clamp (2), characterized in that: In the aluminum alloy cover plate skeleton (1), a steel isothermal balancing piece (4) is arranged, the steel isothermal balancing piece (4) and the aluminum alloy cover plate skeleton (1) are in contact type connection, the steel isothermal balancing piece (4) is a steel rod piece, the structure of the steel rod piece is that a threaded section (42) is arranged at the two ends of the rod body (41), and a double-end stud structure is formed, the steel isothermal balancing piece (4) comprises the steel rod piece and two steel lug seats (6), the upper ends of the two steel lug seats (6) are in contact connection with the two ends of the steel rod piece, and the lower ends of the two steel lug seats (6) are in contact connection with the steel card clothing edge clamp (2). ​ 2. The aluminum alloy movable cover plate with heat deformation resistance function according to claim 1, characterized in that: The steel rod piece is sleeved on the aluminum alloy cover plate skeleton (1) and located in the inner hole at the upper portion, the two ends are fixed on the aluminum alloy cover plate skeleton (1) through fasteners (5), and the steel rod piece is parallel to the steel card clothing edge clamp (2).

3. The aluminum alloy movable cover plate with heat deformation resistance function according to claim 1, characterized in that: The steel rod piece and the aluminum alloy cover plate skeleton (1) are integrally fixed and connected in an interference fit mode, and are located in the interior of the upper portion of the aluminum alloy cover plate skeleton (1) and parallel to the steel card clothing edge clamp (2).

4. The aluminum alloy movable cover plate with heat deformation resistance according to claim 1, characterized in that: The steel rod piece and the aluminum alloy cover plate skeleton (1) are integrally fixed and connected in an inlaid mode, and are located in the interior of the upper portion of the aluminum alloy cover plate skeleton (1) and parallel to the steel card clothing edge clamp (2).

5. The aluminum alloy movable cover plate with heat deformation resistance according to claim 1, characterized in that: The steel rod piece is arranged in the interior of the upper portion of the aluminum alloy cover plate skeleton (1) and parallel to the steel card clothing edge clamp (2).

6. The aluminum alloy movable cover plate with heat deformation resistance according to claim 1, characterized in that: The steel rod piece is arranged in the interior of the upper portion of the aluminum alloy cover plate skeleton (1) and parallel to the steel card clothing edge clamp (2).

7. The aluminum alloy movable cover plate with heat deformation resistance according to claim 1, characterized in that: A heat insulation pad or layer (7) is additionally arranged between the steel card clothing (3), the steel card clothing edge clamp (2) and the aluminum alloy cover plate skeleton (1).

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