Cover plate framework for multi-material composite carding machine

Abstract

The utility model relates to the field of carding machines, and discloses a multi-material composite cover plate framework for a carding machine, which comprises a cover plate framework body, the cover plate framework body comprises an end head and a base, the end head and the base are respectively positioned at the top and the bottom of the cover plate framework body, and reinforcing accessories are arranged on two sides of the base. And the reinforcing accessory and the base are in detachable contact connection. And the device can be disassembled and assembled according to different application environments, and is simple, convenient and high in adaptability. The reinforcing accessories are arranged in the cover plate framework, so that load deformation and thermal deformation of the cover plate framework in the transverse direction and the normal direction can be reduced when the carding condition is harsh and the carding temperature rises, damage to carding card clothing due to the fact that the carding process is too small is avoided, inconsistency of the carding gauge in the framework direction is reduced, and the carding efficiency is improved. The carding uniformity of the carding machine is improved, and the problem of fire alarm caused by too small spacing of partial areas is avoided.

Description

Technical Field

[0001] This utility model relates to the field of carding machines, specifically a multi-material composite cover plate frame for carding machines. Background Technology

[0002] Rotary carding machines are currently key equipment for carding fiber raw materials into cotton slivers, which are then processed into cotton yarn. For most current carding machines, the basic principle of carding cotton bundles is shown in Figure 3: The elastic carding cloth covering the carding frame 4 interacts with the serrated cylinder rollers 5 at a distance d, opening the cotton bundles 6 into single parallel fibers and removing impurities. In this process, the distance d between the needles, usually called the gap, is a key factor affecting the process effect. The gap d in a cold-running state is typically between 0.13-0.25 mm.

[0003] Currently, common carding sheet frame structures are typically derived from DE4304148A1, manufactured using simple extrusion of aluminum profiles, resulting in low cost and light weight. These frames, formed directly from extruded aluminum profiles, are commonly used in carding machines with a width of 1000mm. They possess sufficient rigidity to withstand transverse or longitudinal carding forces, preventing deformation along or perpendicular to the carding direction. Deformation caused by the temperature rise from approximately 25℃ to 40℃ during carding is also controlled due to sufficient rigidity. This allows the carding machine to achieve a stable carding gap d during operation, resulting in excellent carding performance. However, as carding machines develop towards wider widths, reaching approximately 1200mm, the rigidity of traditional aluminum profile frame structures becomes insufficient to support external force deformation and temperature-induced deformation.

[0004] Document CN 113454274 A discloses a cover strip for a carding machine, wherein the reinforced aluminum profile of this structure meets the deformation required for carding force and temperature rise. Document CN100564624C discloses a carding element suitable for thermal expansion effects, wherein a concave bend is constructed on the mounting plane of the cover frame.

[0005] However, when the width of the carding machine increases to around 1300mm or even 1500mm, the existing skeleton, which relies solely on aluminum alloy extrusion molding, is unable to contain the deformation caused by the increased carding force and temperature due to the low elastic modulus and high thermal expansion coefficient of aluminum alloy itself. A stable carding spacing d cannot be achieved throughout the entire skeleton distribution, and in some areas, excessive deformation leads to collisions between the carding needles, causing needle tip damage. Although methods like CN100564624C seem to compensate for deformation through precise concave curves, the actual working conditions are complex, making it difficult to use a fixed curve to meet all carding scenarios.

[0006] Therefore, a new technical solution is needed to solve the above-mentioned technical problems. Utility Model Content

[0007] To address the aforementioned issues, this utility model discloses a multi-material composite cover plate skeleton for a carding machine, which effectively suppresses lateral and longitudinal deformation caused by carding force during the carding process and controls deformation caused by thermal expansion within a reasonable range.

[0008] The technical solution of this utility model is as follows: a multi-material composite carding machine cover frame, including a cover frame body, the cover frame body including an end and a base, the end and the base being located at the top and bottom of the cover frame body respectively, and reinforcing attachments being provided on both sides of the base, with a detachable contact connection between the reinforcing attachments and the base.

[0009] By adopting the above technical solution, in extreme environments such as high production and high impurity, the reinforcing accessories are installed into the cover plate frame body. In this way, the deformation of the frame under large loads can be reduced during operation. While increasing the weight of the frame to a limited extent, the temperature rise and deformation of the frame can be suppressed to a certain extent.

[0010] Preferably, the base has placement slots on both sides for placing reinforcing accessories, and the placement slots are open or closed.

[0011] By adopting the above technical solution, the shape of the placement groove can be adapted to reinforcing accessories of different shapes.

[0012] Preferably, the outer side of the reinforcing accessory in the open placement slot is exposed to the air, and the side exposed to the air is flat arc-shaped or has an inward groove.

[0013] By adopting the above technical solutions, both smooth and grooved surfaces can help to reinforce and organize the cover plate skeleton.

[0014] Preferably, the distance between the inner sides of the open placement slot is greater than the distance between the outer sides, that is, the opening shape of the open placement slot is larger inside and smaller outside.

[0015] By adopting the above technical solution, the shape of the open placement slot can directly snap the reinforcing accessory, preventing the reinforcing accessory from falling off.

[0016] Preferably, the reinforcing attachment of the closed placement groove is fully assembled inside the cover plate frame body, and the reinforcing attachment in the closed placement groove is symmetrical or asymmetrical, and the reinforcing attachment is solid or hollow.

[0017] By adopting the above technical solution, both solid and hollow types of reinforcing accessories can be selected within the same cover plate frame placement slot. This reduces the need for opening different shapes of cover plate frame placement slots.

[0018] Preferably, the reinforcing accessories are reinforced by interference fit, adhesive bonding, welding, bolt locking, or snap fasteners.

[0019] By adopting the above technical solutions, any method that allows the reinforcing accessories to be placed in the placement slot of the cover plate frame can be used, increasing the placement methods and improving convenience.

[0020] Preferably, the reinforcing accessory is one or more of steel, titanium alloy, carbon fiber, glass fiber, engineering resin, and ceramic.

[0021] By adopting the above technical solutions, a larger elastic model or a smaller thermal deformation coefficient is achieved, increasing the selection of cover plate skeletons.

[0022] Preferably, the cover plate skeleton body is fixed with elastic cover plate needle cloth by side clamps.

[0023] By adopting the above technical solution, the fibers or fiber bundles on the cylinder needle cloth are combed by the elastic cover plate needle cloth.

[0024] The advantages of this utility model are: 1. When the combing conditions are simple, the reinforcing accessory can be removed from the cover plate frame. When the combing conditions are harsh, the reinforcing accessory can be installed into the cover plate frame. It can be disassembled and installed according to different application environments, which is simple, convenient and highly adaptable.

[0025] 2. By incorporating reinforcing attachments within the cover plate skeleton, this utility model reduces the load deformation and thermal deformation of the cover plate skeleton in the transverse and normal directions when the carding temperature rises under harsh carding conditions. This prevents damage to the carding card cloth caused by excessively small carding intervals, reduces inconsistencies in carding spacing along the skeleton direction, improves the carding uniformity of the carding machine, and avoids fire problems caused by excessively small spacing in some areas.

[0026] 3. This utility model ensures that the cover plate skeleton still has sufficient rigidity when it exceeds 1300mm in length, which can effectively suppress the lateral and longitudinal deformation caused by the combing force during the combing process, and control the deformation caused by thermal expansion within a reasonable range. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of this utility model;

[0028] Figure 2(a) is a schematic diagram of the structure of the reinforcing accessory with groove of this utility model;

[0029] Figures 2(b)-2(h) are schematic diagrams of the closed-type placement groove of this utility model;

[0030] Figures 3(a)-3(c) are schematic diagrams of the open-type placement slot of this utility model;

[0031] Figure 4 This is a schematic diagram of the structure of the present invention in use;

[0032] Figure 5 This is a schematic diagram of the three-dimensional view of this utility model.

[0033] The components include: 1. Cover plate frame body, 1-1. End, 1-2. Base, 1-21. Placement slot, 2. Reinforcing accessories, 2-1. Groove, 3. Side, 4. Elastic cover plate needle cloth, 5. Cylinder needle cloth, 6. Side clamp. Detailed Implementation

[0034] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0035] like Figure 1 , 4 As shown in Figure 5, a multi-material composite carding machine cover frame includes a cover frame body 1. The total height H of the cover frame body 1 is 68-115mm, the width L of the top is 0-12mm, the thickness b1 of the top is 1-15mm, and the length h1 of the upper inclined surface is... The thickness of the cover plate frame body 1 is 25-45mm, the middle wall thickness b2 is ≥1mm, and the side wall thickness b4 is 0.5-5mm. The cover plate frame body 1 includes an end 1-1 and a base 1-2. The end 1-1 and the base 1-2 are located at the top and bottom of the cover plate frame body 1, respectively. The base 1-2 is provided with reinforcing attachments 2 on both sides. The height h2 of the reinforcing attachments ranges from 0.5-10mm, and the thickness b3 ranges from 1-6mm. The reinforcing attachments 2 and the base 1-2 are detachable contact connections. In extreme environments such as high production and high impurities, the reinforcing attachments 2 are installed inside the cover plate frame body 1. In this way, the deformation of the frame under large loads can be reduced during operation. While increasing the weight of the frame to a limited extent, the temperature rise and deformation of the frame can be suppressed to a certain extent.

[0036] The base 1-2 has placement slots 1-21 on both sides for placing reinforcing attachments 2. The shape of the placement slots 1-21 is open as shown in Figure 2(a) and Figure 3(a)-Figure 3(c) and closed as shown in Figure 2(b)-Figure 2(h). The shape of the placement slots 1-21 can be adapted to reinforcing attachments 2 of different shapes.

[0037] The outer side of the reinforcing accessory 2 inside the open placement slot 1-21 is exposed to the air, and the side exposed to the air is flat arc-shaped or has an inward groove 1-21, as shown in Figure 2(a). The inward groove 1-21 can be a semi-circular groove with a height a ≤ 4mm and a groove depth b ≤ 4mm. Both the smooth and grooved surfaces can serve to reinforce and organize the cover plate skeleton.

[0038] The distance between the inner sides of the open placement slot 1-21 is greater than the distance between the outer sides. That is, the opening shape of the open placement slot 1-21 is larger inside and smaller outside. The shape of the open placement slot 1-21 can directly snap the reinforcing accessory 2 to prevent the reinforcing accessory 2 from falling off.

[0039] The reinforcing attachment 2 of the closed placement slot 1-21 is fully assembled inside the cover plate frame body 1. The reinforcing attachment 2 in the closed placement slot 1-21 is symmetrical or asymmetrical, and the reinforcing attachment 2 is solid or hollow. The distance c between the outermost part of the reinforcing attachment 2 and the side wall of the cover plate frame body ranges from 0.5mm to 4mm. The reinforcing attachment 2 is available in two types: solid and hollow. Reinforcing attachments 2 with the same shape but different weights can be selected in the same cover plate frame placement slot 1-21, reducing the number of different shapes of cover plate frame placement slots 1-21.

[0040] The reinforcement accessory 2 can be placed in the placement slots 1-21 of the cover plate frame by means of interference fit, glue, welding, bolt locking or snap fastening, which increases the placement methods and improves convenience.

[0041] Annex 2 is reinforced with one or more of steel, titanium alloy, carbon fiber, glass fiber, engineering resin, and ceramic, which have a larger elastic modulus or a smaller coefficient of thermal deformation, thus increasing the selection of cover plate skeleton.

[0042] The cover plate frame body 1 is fixed with an elastic cover plate needle cloth 4 by a side clamp 6, and the elastic cover plate needle cloth 4 combs the fibers or fiber bundles on the cylinder needle cloth 5. Example 1

[0043] A 1.38mm wide carding machine with a capacity of 60-90kg / h is suitable for a flatbed frame, as shown in Figure 3(a). Side attachments are bolted on and can be disassembled and replaced with different materials to adapt to different production conditions. At relatively low outputs, the reinforcing attachment material can be removed directly to minimize frame weight. In extreme environments such as high output and high impurities, 45# steel is used to reduce frame deformation under heavy loads. This design reduces the maximum total longitudinal deformation of the frame by 20.5% compared to traditional cross-section flatbed frames when using 45# steel for the reinforcing attachments. This includes a 37.1% reduction in longitudinal deformation due to carding force and a 7.6% reduction in longitudinal deformation due to temperature rise. Lateral deformation due to carding force is reduced by 40%. The frame's total height H = 75mm; top width L = 10mm; top thickness b1 = 9mm; upper slope length h1 = 26mm; middle wall thickness b2 = 4mm; reinforcing attachment height h2 = 6mm; reinforcing attachment thickness b3 = 3mm; and side wall thickness b4 = 3.2mm. Example 2

[0044] A 1.52mm universal wide carding machine with a production capacity of 90-110kg / h is used, with a suitable cover plate skeleton as shown in Figure 3(b). The reinforcing attachments are made of 45# steel. The steel reinforcing attachments are cold-rolled and inlaid into the main body of the cover plate skeleton through an interference fit. This design reduces the maximum total longitudinal deformation of the skeleton by 32.3% compared to traditional cross-section cover plate skeletons, including a 56.1% reduction in longitudinal deformation due to carding force load and a 7.6% reduction in longitudinal deformation due to temperature rise deformation. The lateral deformation of the skeleton is reduced by 55.1%, ensuring sufficiently small lateral deformation and avoiding damage to the base thickness caused by excessive skeleton deformation. The relevant design parameters for this implementation case are as follows: total skeleton height H=95mm; top width L=9mm; top thickness b1=10mm; upper slope length h1=31.4mm; middle wall thickness b2=4mm; reinforcing attachment height h2=7.6mm, reinforcing attachment thickness b3=4mm, and side wall thickness b4=2.2mm. Example 3

[0045] A 1.52mm high-mixture carding machine frame is used, suitable for a flatbed frame with a production capacity of 90-110kg / h. In the above embodiment 2, the reinforcing accessory material is replaced by high-strength carbon fiber woven fabric instead of 45# steel. Due to processing characteristics, a semi-convex additional element structure is adopted, as shown in Figure 3(c). The reinforcing accessories are installed on both sides of the frame body using an interference fit. This design structure can reduce the longitudinal deformation caused by carding force by 56.0%. Because the flatbed frame uses carbon fiber reinforcing accessories, the weight of the frame is reduced by 25.2% compared to embodiment 2. The relevant design parameters of this embodiment are as follows: total frame height H=95mm; top width L=9mm; top thickness b1=10mm; upper slope length h1=31.4mm; middle wall thickness b2=4mm; reinforcing accessory height h2=7.3mm, reinforcing accessory thickness b3=4.5mm, side wall thickness b4=1.7mm.

[0046] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The function and structural principle of the present invention have been shown and explained in the embodiments. Without departing from the stated principle, the implementation of the present invention may have any variations or modifications.

Claims

1. A multi-material composite flat card framework comprising a flat card framework body, the flat card framework body comprising a head and a base, the head and base being located at a top and a bottom of the flat card framework body, respectively, characterized in that: The base is provided with reinforcing accessories on both sides, and the reinforcing accessories and the base are detachably connected in contact.

2. A multi-material composite flat top card clothing framework according to claim 1, wherein: The base is provided with placing grooves for placing the reinforcing accessories on both sides, and the shape of the placing grooves is open type or closed type.

3. A multi-material composite flat top card clothing framework according to claim 2, wherein: The reinforcing accessories in the open type placing grooves are exposed to air on the outside, and the side exposed to air is flat arc or provided with inward grooves.

4. A multi-material composite flat top card wire according to claim 2, wherein: The distance between the inner sides of the open type placing grooves is greater than the distance between the outer sides, that is, the opening shape of the open type placing grooves presents an inside large and outside small shape.

5. A multi-material composite flat top card wire according to claim 2, wherein: The reinforcing accessories in the closed type placing grooves are completely assembled inside the cover plate framework body, the reinforcing accessories in the closed type placing grooves are symmetrical or asymmetrical, and the reinforcing accessories are solid or hollow.

6. A multi-material composite flat top card wire according to claim 1, wherein: The reinforcing accessories are assembled by interference, or are glued, welded, bolted or buckled.

7. A multi-material composite flat top card wire according to claim 1, wherein: The reinforcing accessories are one or more of steel, titanium alloy, carbon fiber, glass fiber, engineering resin and ceramic.

8. The multi-material, composite flat top card clothing framework of claim 1, wherein: The cover plate framework body is fixed with elastic cover plate clothing through edge clamps.

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