Composite pin tooth type pre-carding plate

Abstract

According to the technical scheme, the composite pin-tooth type pre-carding plate is characterized in that the composite pin-tooth type pre-carding plate comprises a base, a pin type carding strip and a tooth type carding strip, the pin type carding strip and the tooth type carding strip are both installed on the base, and the pin type carding strip is used for conducting primary pre-carding on fibers and conducting secondary pre-carding in cooperation with the tooth type carding strip; the base is provided with an installation groove used for installing a needle type carding strip and a tooth type carding strip, clamping grooves used for embedding the side edge of the needle type carding strip or the tooth type carding strip are formed in the groove walls of the two sides of the installation groove, and a detachable pressing plate is arranged at the position, corresponding to the position between the needle type carding strip and the tooth type carding strip, of the installation groove. The pressing plate presses the needle type carding strips and the tooth type carding strips downwards so as to be matched with the clamping grooves to fix the needle type carding strips and the tooth type carding strips in the installation grooves. According to the pre-carding plate, fine and uniform fiber carding is ensured, meanwhile, fiber damage is reduced, formation of short fibers is reduced, abrasion of the racks is reduced, and the service life of the pre-carding plate is prolonged.

Description

Technical Field

[0001] This utility model relates to a carding machine component, and more specifically, to a composite needle-tooth pre-carding plate. Background Technology

[0002] Textile equipment opens, cleans, combs, and drafts raw materials such as cotton and synthetic fibers from their disordered, raw state, ultimately producing yarn and fabrics. As the textile industry shifts from family workshops to factory production, the efficiency and quality requirements for the fiber combing step are constantly increasing. The pre-combing plate, configured in conjunction with the licker-in roller, primarily enhances the combing action of the licker-in roller, separating the fibers entering the cylinder needle surface, breaking down large cotton bundles into smaller bundles and individual fibers. As a crucial component in fiber combing, the pre-combing plate faces higher working pressures and speeds, and with the diversification of combed fibers, such as synthetic fibers, the working surface of the pre-combing plate teeth is more prone to wear, forming grooves and shortening its lifespan. Furthermore, existing sawtooth-type pre-combing plate teeth have sharp edges and corners, causing significant fiber damage and increasing short fibers. Using only needle-type pre-combing plate teeth alone results in insufficient combing, affecting fiber separation and the ability to remove large impurities.

[0003] For the reasons mentioned above, the problem addressed in this application is how to ensure fine and uniform fiber combing while reducing fiber damage, decreasing the formation of short fibers, reducing wear on the toothed bars, and extending the service life of the pre-combing plate.

[0004] To this end, many manufacturers and insightful individuals have conducted research and development, but so far no ideal product has been launched. Utility Model Content

[0005] To address the shortcomings of existing technologies, a composite needle-tooth pre-combing plate is provided. This component can ensure fine and uniform fiber combing while reducing fiber damage, decreasing the formation of short fibers, and reducing tooth wear, thereby reducing material consumption and extending the service life of the pre-combing plate.

[0006] To achieve the above objectives, the following technical solution is provided:

[0007] A composite needle-tooth pre-combing plate includes a base, needle-type combing strips and tooth-type combing strips, all mounted on the base. The needle-type combing strips are used to pre-comb the fibers once and work with the tooth-type combing strips to pre-comb the fibers a second time.

[0008] This utility model is further optimized. The needle-type comb bar includes a connecting plate and a plurality of comb needles installed on the connecting plate. The connecting plate is provided with threaded holes for installing the comb needles at the positions corresponding to the positions of the comb needles, and the comb needles are threadedly connected in the threaded holes.

[0009] This utility model is further optimized, with a first groove or boss provided at the non-needle end of the comb needle. The first groove or boss is used to cooperate with the tool to screw the comb needle into or out of the connecting plate.

[0010] This utility model is further optimized, and the needle-type comb bar includes a connecting plate and a plurality of comb needles installed on the connecting plate. The connecting plate is provided with mounting holes for mounting the comb needles at the positions corresponding to the positions of the comb needles. The comb needles are fitted and glued to the mounting holes through the hole shaft.

[0011] This invention is further optimized by providing a second groove on the comb needle to accommodate glue.

[0012] This invention is further optimized by providing an injection channel for injecting glue at the end of the comb needle away from the tip, which connects the second groove to the outside.

[0013] This invention is further optimized in that the number of second grooves is one or more, and they are evenly distributed on the outside of the comb needles.

[0014] This invention is further optimized in that the second groove is annular and is coaxially arranged with the comb needle.

[0015] This invention is further optimized in that the tips of several comb needles are located on the same arc-shaped trajectory, which is adapted to the surface of the licker-in roller, so that the tips of all comb needles and the tips of the toothed strips participate in the combing of the fibers evenly.

[0016] This utility model is further optimized by providing a mounting groove for installing pin-type and tooth-type combing strips on the base. The two side walls of the mounting groove are provided with slots for embedding the side edges of the pin-type or tooth-type combing strips. A detachable pressure plate is provided in the mounting groove at the position between the pin-type and tooth-type combing strips. The pressure plate presses down on the pin-type and tooth-type combing strips to fix them in the mounting groove in cooperation with the slots.

[0017] This technical solution has the following beneficial effects: it can ensure fine and uniform fiber combing while reducing fiber damage, reducing the formation of short fibers, reducing wear on the toothed strips, and extending the service life of the pre-combing plate. Attached Figure Description

[0018] Figure 1 This is a two-dimensional structural schematic diagram of a composite needle-type pre-combing plate.

[0019] Figure 2 This is a two-dimensional structural diagram of an inverted T-shaped needle-type comb bar with a threaded connection.

[0020] Figure 3 This is a two-dimensional structural diagram of a trapezoidal needle-type comb bar with a threaded connection.

[0021] Figure 4 This is a two-dimensional structural diagram of a threaded comb needle.

[0022] Figure 5 This is a schematic diagram of a non-tip two-dimensional structure for a threaded connection comb needle.

[0023] Figure 6 This is a two-dimensional structural diagram of an adhesive-bonded inverted T-shaped needle-type comb bar.

[0024] Figure 7 This is a two-dimensional structural diagram of a bonded trapezoidal needle-type comb bar.

[0025] Figure 8 This is a schematic diagram of a two-dimensional structure of a glued comb needle.

[0026] Figure 9 This is a two-dimensional structural diagram of the glue injection channel.

[0027] Figure 10 This is a schematic diagram showing the same arc-shaped trajectory of the comb needle tips.

[0028] Reference numerals: 1. Mounting groove; 2. Needle-type comb bar; 3. Toothed comb bar; 4. Pressure plate; 5. Base; 11. Slot; 21. Comb needle; 22. Threaded hole; 211. First groove; 212. Second groove; 213. Glue injection channel; 23. Connecting plate; 24. Mounting hole. Detailed Implementation

[0029] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Identical components are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to directions in the accompanying drawings, and the terms "bottom surface," "top surface," "inner," and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0030] Reference Figure 1-10 As shown, a composite needle-tooth pre-combing plate includes a base 5, needle-type combing strips 2 and tooth-type combing strips 3, all mounted on the base 5.

[0031] Bundle fibers enter through the equipment inlet and undergo coarse processing by needle combing bar 2, which breaks down most of the fibers into individual fibers and removes most of the impurities. The coarsely processed fibers are then transported to tooth combing bar 3, where the teeth of the tooth combing bar 3 can penetrate deep into the fibers to further comb the remaining bundle fibers and individual fibers one by one and remove the remaining impurities. The fibers combed by the tooth combing bar 3 are straighter.

[0032] In existing technologies, conventional pre-combing plates have the following drawbacks that prevent them from achieving the desired results: the pre-combing plate uses needle-type combing bars 2, which can only decompose most bundled fibers and remove most impurities, resulting in low fiber pretreatment efficiency. The pre-combing plate uses toothed combing bars 3, which can efficiently decompose fibers and remove impurities, but the fiber loss rate is high, and the service life of the toothed combing bars 3 will expire prematurely after a period of operation. In contrast, the fibers in this solution are first treated by durable needle-type combing bars 2, and then treated a second time by high-efficiency toothed combing bars 3. This not only results in high fiber processing efficiency and low loss rate, but also significantly extends the service life of the toothed combing bars 3.

[0033] This utility model is further optimized, with reference to... Figure 2 and Figure 3 As shown, the needle-type comb bar 2 includes a connecting plate 23 and a plurality of comb needles 21 mounted on the connecting plate 23. The connecting plate 23 is provided with threaded holes 22 for mounting the comb needles 21 at the positions corresponding to the positions of the comb needles 21. The comb needles 21 are threadedly connected in the threaded holes 22. The threaded connection can provide a large circumferential fixing and fastening force, so that the comb needles 21 and the connecting plate 23 have high stability and strength, and it is easier to fine-tune the position of the comb needles 21 during installation.

[0034] This utility model is further optimized, with reference to... Figure 5 As shown, the non-needle end of the comb needle 21 is provided with a first groove 211. By using a corresponding tool, the comb needle 21 can be easily screwed out or screwed into the connecting plate 23. The distance of the comb needle 21's tip end beyond the connecting plate 23 can be precisely adjusted using the tool to adapt to different needle length requirements. For example, the groove can be achieved using a flathead screwdriver, a Phillips head screwdriver, or an Allen wrench; a protrusion can be achieved using a socket wrench, a box wrench, or an adjustable wrench.

[0035] This utility model is further optimized, with reference to... Figure 6 and Figure 7 As shown, the connecting plate 23 has mounting holes 24 for mounting the comb needle 21 at the position corresponding to the comb needle 21. The comb needle 21 is inserted into the mounting hole 24 and forms an interference fit with the mounting hole 24. By combining the two connection methods of adhesive bonding and interference fit, the connection stability between the comb needle 21 and the connecting plate 23 can be increased. Alternatively, a special mold can be prepared to tap the comb needle 21 and the connecting plate 23, which can shorten the time of installing the comb needle 21 on the connecting plate 23.

[0036] This utility model is further optimized, with reference to... Figure 8 As shown, the comb needle 21 connected by adhesive has a second groove 212 to accommodate the adhesive and prevent it from overflowing. At the same time, the second groove 212 restricts the flow range of the adhesive, so that the adhesive can concentrate at the connection point and reach a certain thickness, thereby increasing the strength of the adhesive bond.

[0037] This invention is further optimized by providing an injection channel 213 for injecting glue at the end of the comb needle 21 away from the tip. The comb needle 21 is interference-fitted to the mounting hole 24. Glue is injected through the injection channel 213 away from the tip of the comb needle 21, so that the glue can fill the second groove between the comb needle 21 and the mounting hole 24. With this injection method, the glue will not splash.

[0038] This invention is further optimized in that the number of second grooves 212 of the comb needle 21 connected by adhesive bonding is one or more, and they are evenly distributed on the outside of the comb needle 21. Compared with setting a large groove, multiple smaller axially evenly distributed second grooves 212 are easier to fill with glue, so that the glue flows evenly into each second groove 212, reducing the impact of air bubbles or unfilled areas on the bonding strength.

[0039] This utility model is further optimized. The second groove 212 of the comb needle 21, which is connected by adhesive bonding, is annular and coaxially arranged with the comb needle 21. The annular second groove 212 is easy to process and has excellent anti-peeling and anti-torsion capabilities, and can adapt to stress changes in the circumferential direction.

[0040] This invention is further optimized in that the tips of several comb needles 21 are located on the same arc-shaped trajectory. This arc-shaped trajectory is adapted to the surface of the licker-in roller, so that the tips of all comb needles 21 and the tips of the toothed strips participate in the combing of the fibers evenly. The comb needles 21 and the licker-in roller cooperate with each other to complete the first pretreatment of the fibers with high efficiency.

[0041] This utility model is further optimized. The base 5 is provided with an installation groove 1 for installing the needle-type comb strip 2 and the tooth-type comb strip 3. The two side walls of the installation groove 1 are provided with slots 11 for embedding the side edges of the needle-type comb strip 2 or the tooth-type comb strip 3. A detachable pressure plate 4 is provided in the installation groove 1 at the position between the needle-type comb strip 2 and the tooth-type comb strip 3.

[0042] Both the needle-type comb bar 2 and the toothed comb bar 3 are designed in an inverted T shape. The detachable pressure plate 4 is designed in an I-shape. The lower half of the pressure plate 4 is fixed in the middle mounting groove 1, and the upper half presses down on one end of the needle-type comb bar 2 and the toothed comb bar 3 on both sides. When a downward force is applied to the end of the needle-type comb bar 2 or the toothed comb bar 3 near the slot 11, the end of the needle-type comb bar 2 or the toothed comb bar 3 away from the slot 11 will generate an upward force. At this time, the upper half of the pressure plate 4 is subjected to an upward force. Since the lower half of the pressure plate 4 is installed in the mounting groove 1, the mounting groove 1 clamps the pressure plate 4 and moves it upward. The upper half of the pressure plate 4 will generate an opposite opposing force against the upward force, thereby counteracting the upward force of the needle-type comb bar 2 and the toothed comb bar 3.

[0043] When a downward force is applied to the pressure plate 4, the end of the needle-type combing bar 2 or the toothed combing bar 3 near the slot 11 will be displaced upward. At this time, the upper half of the slot 11 is subjected to an upward force, and the upper half of the slot 11 will generate an opposite force against the upward force, thereby canceling the upward force of the needle-type combing bar 2 and the toothed combing bar 3.

[0044] Both the needle-type comb bar 2 and the tooth-type comb bar 3 can be set as trapezoids. At the same time, the connection between the pressure plate 4 and the needle-type comb bar 2 and the tooth-type comb bar 3 should be set as an inverted trapezoid. Similarly, the pressure plate 4 and the slot 11 can be matched to prevent the needle-type comb bar 2 and the tooth-type comb bar 3 from moving.

[0045] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A composite needle-tooth pre-combing plate, characterized in that, It includes a base, needle-type combing strips and toothed combing strips, all mounted on the base. The needle-type combing strips are used to pre-comb the fibers once and work with the toothed combing strips to pre-comb the fibers a second time.

2. The composite needle-tooth pre-combing plate according to claim 1, characterized in that, The needle-type comb bar includes a connecting plate and a plurality of comb needles mounted on the connecting plate. The connecting plate is provided with threaded holes for mounting the comb needles at positions corresponding to the comb needles; the comb needles are threaded into the threaded holes.

3. The composite needle-tooth pre-combing plate according to claim 2, characterized in that, The non-needle end of the comb is provided with a first groove or boss, which is used to cooperate with a tool to screw the comb into or out of the connecting plate.

4. The composite needle-tooth pre-combing plate according to claim 1, characterized in that, The needle-type comb bar includes a connecting plate and a plurality of comb needles mounted on the connecting plate. The connecting plate has mounting holes for mounting the comb needles at positions corresponding to the comb needles. The comb needles are fitted and glued into the mounting holes through a hole shaft fit.

5. The composite needle-tooth pre-combing plate according to claim 4, characterized in that, The comb needle is provided with a second groove for accommodating glue.

6. The composite needle-tooth pre-combing plate according to claim 5, characterized in that, The end of the comb needle away from the tip is provided with an injection channel for injecting glue, which connects the second groove to the outside.

7. The composite needle-tooth pre-combing plate according to claim 5, characterized in that, The number of the second groove is one or more, and they are evenly distributed on the outside of the comb needle.

8. The composite needle-tooth pre-combing plate according to claim 7, characterized in that, The second groove is annular and coaxial with the comb needle.

9. The composite needle-tooth pre-combing plate according to any one of claims 2-4, characterized in that, The tips of the comb needles are located on the same arc-shaped trajectory, which is adapted to the surface of the licker-in roller, so that the tips of all the comb needles and the tips of the toothed strips participate evenly in the combing of the fibers.

10. The composite needle-tooth pre-combing plate according to any one of claims 1 to 8, characterized in that, The base is provided with mounting grooves for installing pin-type and tooth-type comb strips. The two side walls of the mounting groove are provided with slots for embedding the side edges of the pin-type or tooth-type comb strips. A detachable pressure plate is provided in the mounting groove at the position between the pin-type and tooth-type comb strips. The pressure plate presses down on the pin-type and tooth-type comb strips to fix them in the mounting grooves in cooperation with the slots.

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