Powder homogenizing device used before cable core extrusion molding
The combined device of the talc powder spraying unit and the powder leveling unit solves the problem of uneven talc powder on the surface of the cable core, achieves uniform adhesion of talc powder and uniform thickness of the outer sheath, and improves the quality of the cable product.
Patent Information
- Application Number
- CN202422660294.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-31
- Publication Date
- 2025-09-23
- Estimated Expiration
- 2034-10-31
AI Technical Summary
In the prior art, talcum powder adheres unevenly to the surface of the cable core, resulting in uneven thickness of the outer sheath, which affects the quality of the cable product.
A combined device of a talc powder spraying unit and a powder leveling unit is used to evenly distribute the talc powder on the surface of the wire core through powder spraying, friction and electrostatic action. The device includes a talc powder spraying unit, a talc powder recovery unit, a partition, a powder leveling unit and an electrostatic application unit to ensure uniform adhesion of the talc powder.
The talcum powder is evenly distributed on the surface of the cable core, ensuring the uniformity of the outer sheath thickness and improving the quality of the cable product.
Smart Images
Figure CN223369838U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of cable manufacturing, in particular to a powder leveling device before extrusion of a cable core. Background Art
[0002] Cables generally consist of a core and an outer sheath. The sheath is usually wrapped around the core by extrusion. During the extrusion process of the outer sheath, talcum powder is applied to the surface of the core to prevent the outer sheath from adhering to the core. The talcum powder is used to separate the core and the sheath layer, thereby avoiding adhesion between the core and the sheath layer.
[0003] The current structure for supplying talcum powder is as follows: it includes a main hopper, a stirring shaft, stirring blades, and a driver. The main hopper is used to store talcum powder, and the input hole and the output hole are respectively arranged at both ends of the main hopper; the stirring shaft is located in the middle and lower part of the main hopper, and the two ends of the stirring shaft are respectively rotatably supported on the main hopper; when the stirring blade is working, the talcum powder is caused to churn, and the stirring blade is fixed to the stirring shaft; the driver drives the stirring shaft to rotate, and the driver is connected to the stirring shaft.
[0004] When in use, the wire core is passed through the main hopper, and the stirring blades cause the talcum powder to tumble, so that the talcum powder adheres to the surface of the wire core.
[0005] While the talc powder attachment structure described above allows talc powder to adhere to the cable core surface, the tumbling of the talc powder by the stirring blades only serves to ensure a more uniform talc powder adherence to the cable core surface. This method does not ensure a uniform talc powder adherence to the cable core surface, resulting in uneven thickness of the extruded outer sheath. Since each outer sheath specification has a design thickness standard, if the talc powder is too thick, the outer sheath thickness will be reduced. When the outer sheath thickness falls below the design standard, the produced cable will be substandard. Utility Model Content
[0006] The utility model provides a powder leveling device before extrusion of a cable core. Before the core is extruded with an outer sheath, the utility model can make the talcum powder attached to the surface of the core be in a uniform state.
[0007] The technical solutions to the above technical problems are as follows:
[0008] The powder leveling device before the cable core is extruded includes a talcum powder spraying unit and also includes:
[0009] A talcum powder recovery unit having an inner cavity, wherein an input port is provided at one end of the talcum powder recovery unit and an output port is provided at the other end of the talcum powder recovery unit;
[0010] A partition is provided with a through hole for the wire core to pass through, the partition is located in the inner cavity of the talcum powder recovery unit, and the partition divides the inner cavity into a first cavity and a second cavity, and the stone powder spraying unit is matched in the first cavity;
[0011] The powder leveling unit is located in the second cavity and is connected to the talcum powder recovery unit.
[0012] When the utility model is used: the wire core is released from the wire pay-off frame, the wire core passes through the interval space between the first capacitor plate and the second capacitor plate, the talc powder spraying unit sprays talc powder, and since the talc powder spraying unit corresponds to the wire core, a part of the talc powder sprayed by the talc powder spraying unit adheres to the surface of the wire core, and after the wire core passes through the through hole and enters the second cavity, the wire core passes between the two rollers, and the wire core rubs against the flexible parts on the surface of the roller, so that the talc powder on the surface of the wire core becomes uniform, and finally the wire core is output from the output port and enters the extruder, and the extruder extrude the outer sheath material onto the wire core.
[0013] The utility model makes the talcum powder on the surface of the wire core uniform and can make the thickness of the extruded outer sheath uniform after extrusion. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a front view of the powder leveling device before extrusion of the cable core in the present invention.
[0015] Figure 2 This is a top view of the powder leveling device before extrusion of the cable core in the present invention.
[0016] Figure 3 This is a schematic diagram of the powder leveling device before extrusion of the cable core and the extruder to extrude the outer sheath.
[0017] Symbols in the accompanying drawings:
[0018] Talc powder spraying unit 1, talc powder recovery unit 2, input port 2a, output port 2b, first cavity 2c, second cavity 2d, partition 3, through hole 3a, connecting shaft 4, roller 5, first sliding guide part 6, second sliding guide part 7, third sliding guide part 8, fourth sliding guide part 9, first capacitor plate 10, second capacitor plate 11, interval space 12, wire core A, wire pay-off frame B, powder leveling device C before cable core extrusion, extruder D. DETAILED DESCRIPTION
[0019] The present invention will be described in further detail below with reference to the accompanying drawings and specific implementations.
[0020] like Figures 1 to 3As shown, the powder leveling device C before extrusion of the cable core of the present invention includes a talcum powder spraying unit 1, a talcum powder recovery unit 2, a partition 3, and a powder leveling unit. Each part and the relationship between them are described in detail below.
[0021] After the talc powder spraying unit 1 sprays the talc powder, the talc powder adheres to the surface of the wire core A. The talc powder spraying unit 1 preferably uses a spray gun, which is a prior art.
[0022] The talc recovery unit 2 has an inner cavity, and is a box or tank. One end of the talc recovery unit 2 is provided with an input port 2a, and the other end of the talc recovery unit 2 is provided with an output port 2b. The core A enters the talc recovery unit 2 through the input port 2a and exits through the output port 2b.
[0023] Partition 3 is provided with a through-hole 3a for thread core A to pass through. Partition 3 is located within the inner cavity of talc recovery unit 2, dividing the inner cavity into a first cavity 2c and a second cavity 2d. The stone powder spraying unit 1 is fitted into the first cavity 2c. The partitioning effect of partition 3 prevents or reduces the amount of talc sprayed by the talc spraying unit 1 from entering the second cavity 2d, thereby preventing or reducing unnecessary talc from sticking to the thread core A after being processed by the powder leveling unit.
[0024] The powder leveling unit evens out the talc powder adhered to the surface of the wire core A. The powder leveling unit is located in the second cavity 2d and is connected to the talc powder recovery unit 2. The powder leveling unit includes multiple connecting shafts 4 and multiple rollers 5. One end of the connecting shaft 4 is connected to the talc powder recovery unit 2. Each connecting shaft 4 is rotatably engaged with at least one roller 5. At least two rollers 5 are arranged opposite each other, and the surface of each roller 5 is provided with a flexible component for leveling the powder.
[0025] In this embodiment, there are two connecting shafts 4 and two rollers 5. The two connecting shafts 4 are arranged relative to each other, so that the two rollers 5 are also arranged relative to each other. The core A passes through the two rollers 5. The friction generated between the flexible components on the rollers 5 and the core A makes the talcum powder on the surface of the core A become uniform. During the interaction between the core A and the rollers 5, the rollers 5 rotate due to the friction between the core A and the rollers 5. The material of the flexible components is preferably one of polyester, acrylic, cotton and wool.
[0026] Whether in the first cavity 2c or the second cavity 2d, talcum powder falls downward, and the talcum powder that falls downward will inevitably stick to the inner wall surface of the talcum powder recovery unit 2. In order to allow more talcum powder to fall to the bottom of the talcum powder recovery unit 2, the utility model also includes a first sliding guide portion 6 and a second sliding guide portion 7 for guiding the sliding of the talcum powder. The first sliding guide portion 6 is located in the first cavity 2c and is fixed to the talcum powder recovery unit 2, and the second sliding guide portion 7 is located in the first cavity 2c and is fixed to the partition 3. The first sliding guide portion 6 and the second sliding guide portion 7 are both triangular in shape, and therefore, the surfaces on the first sliding guide portion 6 and the second sliding guide portion 7 for guiding the movement of the talcum powder are inclined surfaces.
[0027] The present invention further includes a third sliding guide portion 8 and a fourth sliding guide portion 9 for guiding the sliding of the talc powder. The third sliding guide portion 8 is located in the second cavity 2d and is fixed to the talc powder recovery unit 2. The fourth sliding guide portion 9 is located in the second cavity 2d and is fixed to the partition 3. The third sliding guide portion 8 and the fourth sliding guide portion 9 are both triangular in shape. Therefore, the surfaces of the third sliding guide portion 8 and the fourth sliding guide portion 9 for guiding the movement of the talc powder are inclined surfaces.
[0028] The present invention also includes an electrostatic application unit for applying static electricity to the core A, and the electrostatic application unit cooperates with the input port 2a. The electrostatic application unit includes a first capacitor plate 10 and a second capacitor plate 11, the first capacitor plate 10 and the second capacitor plate 11 being respectively located in the input port 2a, the first capacitor plate 10 and the second capacitor plate 11 being respectively fixed to the talcum powder recovery unit 2, and a space 12 for the core A to pass through is provided between the first capacitor plate 10 and the second capacitor plate 11. A voltage of 30-60 kV is applied to the first capacitor plate 10 and the second capacitor plate 11, respectively, to generate a high-voltage electrostatic field between the first capacitor plate 10 and the second capacitor plate 11. When the core A passes through the electrostatic field between the first capacitor plate 10 and the second capacitor plate 11, the surface of the core A is subjected to static electricity. Since static electricity has an adsorption effect, it is easy to attract and adhere dust. Therefore, when the surface of the core A has static electricity, it is easy to adsorb talcum powder on the surface of the core A.
[0029] The usage process of the present utility model is as follows: the wire core A is released from the wire pay-off frame B, and the wire core A passes through the interval space 12 between the first capacitor plate 10 and the second capacitor plate 11. Static electricity is applied to the surface of the wire core A, and the talc powder spraying unit 1 sprays talc powder. Since the talc powder spraying unit 1 corresponds to the wire core A, a part of the talc powder sprayed by the talc powder spraying unit 1 adheres to the surface of the wire core A. After the wire core A passes through the through hole 3a and enters the second cavity 2d, the wire core A passes between the two rollers 5. The wire core A rubs against the flexible parts on the surface of the roller 5, so that the talc powder on the surface of the wire core A becomes uniform. Finally, the wire core A is output from the output port 2b and enters the extruder D. The extruder D extrude the outer sheath material onto the wire core A.
[0030] The above disclosure is only a preferred embodiment of the present application, and it is certainly not intended to limit the scope of rights of the present invention. A person skilled in the art can understand that all or part of the structures of the above embodiment can be implemented and equivalent changes made according to the claims of the present application are still within the scope of the present application.
Claims
1. A powder-distributing device for a cable core before extrusion, comprising a talcum powder spraying unit (1), characterized in that: Also includes: A talcum powder recovery unit (2) having an inner cavity, wherein one end of the talcum powder recovery unit (2) is provided with an input port (2a), and the other end of the talcum powder recovery unit (2) is provided with an output port (2b); A partition (3) is provided with a through hole (3a) for the wire core to pass through, the partition (3) is located in the inner cavity of the talcum powder recovery unit (2), and the partition (3) divides the inner cavity into a first cavity (2c) and a second cavity (2d), and the stone powder spraying unit (1) is fitted in the first cavity (2c); A powder leveling unit is located in the second cavity (2d) and is connected to the talcum powder recovery unit (2).
2. The powder leveling device before cable core extrusion according to claim 1, characterized in that: The powder leveling unit comprises: A plurality of connecting shafts (4), one end of the connecting shaft (4) is connected to the talc powder recovery unit (2), A plurality of rollers (5) are provided, each connecting shaft (4) is rotatably matched with at least one roller (5), at least two rollers (5) are arranged opposite to each other, and a flexible component for uniform powder distribution is provided on the surface of each roller (5).
3. The powder leveling device before cable core extrusion according to claim 1, characterized in that: It also includes a first sliding guide portion (6) and a second sliding guide portion (7) for guiding the sliding of talc powder, wherein the first sliding guide portion (6) is located in the first cavity (2c) and is fixed to the talc powder recovery unit (2), and the second sliding guide portion (7) is located in the first cavity (2c) and is fixed to the partition (3).
4. The powder leveling device before cable core extrusion according to claim 1, characterized in that: It also includes a third sliding guide portion (8) and a fourth sliding guide portion (9) for guiding the sliding of talc powder, wherein the third sliding guide portion (8) is located in the second cavity (2d) and is fixed to the talc powder recovery unit (2), and the fourth sliding guide portion (9) is located in the second cavity (2d) and is fixed to the partition (3).
5. The powder leveling device before extrusion of the cable core according to any one of claims 1 to 4, characterized in that: It also includes an electrostatic applying unit for applying static electricity to the wire core, and the electrostatic applying unit cooperates with the input port (2a).
6. The powder leveling device before extrusion of the cable core according to claim 5, characterized in that: The electrostatic application unit comprises a first capacitor plate (10) and a second capacitor plate (11), wherein the first capacitor plate (10) and the second capacitor plate (11) are respectively located in the input port (2a), the first capacitor plate (10) and the second capacitor plate (11) are respectively fixed to the talcum powder recovery unit (2), and a spacing space (12) for the wire core to pass through is provided between the first capacitor plate (10) and the second capacitor plate (11).