Continuous production process of wax ring for spinning

Abstract

The invention relates to the technical field of wax rings for spinning, in particular to a continuous production process of the wax rings for spinning, which comprises the following steps: melting and mixing wax and a cosolvent in a wax melting tank according to a ratio, pumping wax liquid through a plunger pump, pumping the wax liquid into a wax rod forming mold, ejecting a formed wax rod from the wax rod forming mold under the pressure of the plunger pump, and forming the wax rings for spinning. Then cutting into small cylinders with cambered surfaces, namely the wax ring for spinning; in the production process, cooling water is used for cooling the wax rod forming mold. According to the technology, continuous production is achieved, the production efficiency and the product quality of the wax rings for spinning are greatly improved, standardization of products can be achieved, and the personnel cost is greatly reduced.

Description

Technical Field

[0001] The invention relates to the technical field of wax rings for textiles, and specifically relates to a continuous production process of wax rings for textiles. Background Art

[0002] During the weaving process, textile yarns need to pass through wax rings to coat the surface of the yarns with a layer of wax. Countless uniform and tiny wax crystals adhere to the yarns, which significantly improves the softness and lubricity of the fabrics, thereby improving fabric quality and loom efficiency.

[0003] At present, both domestic and foreign manufacturers produce textile wax rings by pouring the mixed liquid wax into a single mold, scraping off the top layer of excess wax after cooling, and then taking out the finished product to produce a single wax ring. This production method has problems such as low production efficiency and inconsistent production.

[0004] Although the prior art has improved the production equipment or raw materials of textile wax rings, a continuous production process for textile wax rings has not been developed. For example, CN100560850C only makes changes to the composition of textile wax rings, and then pours the mixed liquid wax into the mold and waits for cooling; and patents CN217236221U and CN217226544U improve the structure of the original textile wax ring machinery, but do not realize a continuous production process. Summary of the invention

[0005] In view of the above problems, the present invention provides a continuous production process of wax rings for textile use.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A continuous production process for textile wax rings, specifically comprising: melting and mixing wax and a solvent in a wax tank according to a proportion, extracting wax liquid through a plunger pump and pumping it into a wax stick forming mold, ejecting a formed wax stick from the wax stick forming mold under the pressure of the plunger pump, and then cutting it into small cylinders with curved surfaces, namely, textile wax rings;

[0008] During the production process, cooling water is used to cool the wax stick forming mold.

[0009] The wax stick forming mold comprises a cooling water tank, in which a plurality of vertically placed wax stick forming tubes are arranged, and the bottom end of each wax stick forming tube passes through the bottom of the cooling water tank and is connected to the wax inlet pipeline through an electronic valve;

[0010] A central hole stainless steel piece coaxial with the wax stick forming tube is provided inside the wax stick forming tube along the axial direction, and the lower wall surface of the central hole stainless steel piece is fixedly connected to the inner wall surface of the wax stick forming tube through at least one fixing piece;

[0011] The parts of all wax stick forming tubes exposed from the bottom of the cooling water tank, the electronic valves and the outside of the wax inlet pipelines are equipped with insulation devices.

[0012] Wherein, a detachable tube sleeve for positioning the central hole stainless steel part is provided on the top of each wax stick forming tube; and the height of the wax stick forming tube is 60-100 cm.

[0013] Wherein, a water inlet is arranged on the lower side wall of the cooling water tank, and a water outlet is arranged on the upper side wall; a check valve is installed on the wax inlet pipeline.

[0014] Wherein, the central hole stainless steel part is a solid structure, and its cross section is circular or square.

[0015] Wherein, the water temperature of the cooling water tank is 10-25° C. lower than the maximum temperature of the wax melting range of the wax stick forming tube.

[0016] Among them, one end of the wax inlet pipeline is connected to a plunger pump to pump wax liquid into the wax stick forming mold; a detection device is installed above the mold, and when the extruded wax stick reaches a predetermined length, the detection device is triggered to automatically cut off the wax stick.

[0017] Among them, the insulation device is an insulation jacket or a circulating water bath; the electronic valve is controlled by a PLC circuit board; the wax stick forming tube and the wax inlet pipeline are both made of stainless steel tubes with smooth inner walls, and the diameter of the wax inlet pipeline is larger than the diameter of the wax stick forming tube.

[0018] Wherein, the wax melting tank is an electrically heated heat-conducting oil type wax melting tank with adjustable temperature.

[0019] Wherein, the pressure of the plunger pump is 1-100 MPa.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] (1) The continuous production process of the textile wax ring of the present invention simplifies the production process by separating the production steps and realizing continuous production through limited mechanical devices, thereby greatly improving the production efficiency and product quality of the textile wax ring, realizing product standardization, and greatly reducing personnel costs.

[0022] (2) The traditional production process of textile wax rings requires waiting for cooling time, while the production process of the present invention does not require waiting for cooling time and can achieve continuous production of wax rings.

[0023] (3) Traditional wax ring molding equipment for textiles relies on natural cooling for molding, while in the production process of the present invention, cooling is performed by circulating water with temperature, which not only improves the cooling efficiency, but also can set the corresponding water temperature and pressure according to the melting range of the raw wax used, thereby improving the crystallinity of the textile wax ring and increasing the density of the wax ring, making the final product more uniform in texture and more reliable in use.

[0024] (4) Traditional textile wax ring molding equipment relies on natural solidification molding, while in the production process of the present invention, during the process of manufacturing the wax stick by the molding mold, a plunger pump is used to apply a pressure of several megapascals to tens of megapascals to extrude the cooled and molded wax stick in the mold, making the wax stick structure denser and the finally obtained textile wax ring more durable. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 The present invention is a flow chart of the continuous production process of the textile wax ring;

[0026] Figure 2 This is a front perspective view of the wax stick molding mold.

[0027] Figure 3 A side perspective view of the wax stick forming mold.

[0028] Figure 4 It is a schematic diagram of the structure of the wax stick forming tube.

[0029] Figure 5 It is a cross-sectional view of the wax stick forming tube at the fixing part.

[0030] Among them, 1-pipe sleeve, 2-cooling water tank, 3-water inlet, 4-check valve, 5-wax inlet pipeline, 6-insulation device, 7-electronic valve, 8-fixing part, 9-center hole stainless steel part, 10-water outlet, 11-wax stick forming tube. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] Example 1 Wax stick molding mold

[0033] like Figure 2-5 As shown, a wax stick molding mold comprises a cooling water tank 2, wherein a plurality of vertically placed wax stick molding tubes 11 are arranged in the cooling water tank 2, wherein the bottom end of each wax stick molding tube 11 passes through the bottom of the cooling water tank 2 and is connected to a wax inlet pipeline 5 through an electronic valve 7;

[0034] The wax stick forming tube 11 is provided with a center hole stainless steel piece 9 coaxial with the wax stick forming tube 11 in the axial direction, and the lower wall surface of the center hole stainless steel piece 9 is fixedly connected to the inner wall surface of the wax stick forming tube 11 through four evenly distributed fixing pieces 8;

[0035] The parts of all wax stick forming tubes 11 exposed from the bottom of the cooling water tank 2 , the electronic valve 7 and the outside of the wax inlet pipeline 5 are all provided with a heat preservation device 6 .

[0036] A detachable tube sleeve 1 for positioning the center hole stainless steel piece 9 is provided on the top of each wax stick forming tube 11 .

[0037] The lower side wall of the cooling water tank 2 is provided with a water inlet 3, and the upper side wall is provided with a water outlet 10.

[0038] A check valve 4 is installed on the wax inlet pipeline 5. One end of the wax inlet pipeline 5 is connected to a plunger pump to pump wax liquid into the wax stick molding mold.

[0039] The height of the wax stick forming tube 11 is 80 cm. In other advantageous embodiments, the height of the wax stick forming tube 11 can be adjusted within a range of 60 cm to 100 cm. The wax stick forming tube 11 and the wax inlet pipe 5 are both made of stainless steel pipes with smooth inner walls. The center hole stainless steel part 9 is a solid structure, and its cross section is circular or square.

[0040] The wax stick forming tube 11 is the core component of the entire mold, and its diameter is not fixed. Different diameter molds can be replaced according to production requirements. There is no specific requirement for the number of wax stick forming tubes, which can be 10, 20, 30 or 40, and can be adjusted according to the size and speed of production scale. The arrangement is not limited to linear arrangement, and can be matrix arrangement or other arrangement methods.

[0041] Because there is a square or round hole in the middle of the textile wax ring for fixing, a square or cylindrical center hole stainless steel piece 9 needs to be installed in the middle of the wax stick forming tube 11 for forming. The formed wax stick is to be cut into wax rings in the future, so the concentricity of the center hole of the wax stick is particularly important, which is also the reason why the forming mold is installed vertically, avoiding the problem of the square or cylindrical center hole stainless steel piece 9 bending under the action of gravity and causing the wax stick to be non-concentric.

[0042] In order to install and fix the square or cylindrical stainless steel part in the middle of the wax stick forming tube, it is necessary to weld a fixing piece 8 on the inner wall surface at the bottom of the wax stick forming tube. The fixing piece 8 can only be welded at the bottom of the wax stick forming tube, where the wax liquid has just entered the wax stick forming tube and has not yet solidified. At this time, the fixing piece 8 has no effect on the shape and molding of the wax stick. However, the fixing piece cannot be installed on the upper part of the wax stick forming tube. Due to the nature of the wax, when the wax is in a semi-solidified state, the shape of the fixing piece 8 will affect the nature of the final wax stick, causing the final wax stick to split into multiple petals.

[0043] In order to reduce the deviation of the top of the molding tube caused by the lateral force generated on the central square or cylindrical stainless steel part when the wax liquid is first poured in, a pipe sleeve 1 for positioning the central hole stainless steel part 9 is installed on the top of the wax stick molding tube, so that the final concentricity of the wax stick can be guaranteed during the molding process. The pipe sleeve 1 for top positioning can be simply put on or removed, and is only needed when molding is just started or when the machine is restarted. Once the wax stick is continuously produced, since the wax stick itself is hardened and formed in the middle and upper part of the molding mold, it itself plays the function of a positioning piece. Therefore, after the wax stick is formed and continuously produced, the pipe sleeve 1 can be removed.

[0044] The wax stick forming tube 11 is placed in the circulating cooling water tank 2, and the entire forming tube needs to be buried below the cooling water surface. The cooling water tank itself does not heat or cool the water, but only serves as a container and circulation. Cooling water enters from the bottom water inlet 3 and exits from the upper water outlet 10. Both ends of the inlet and outlet can be connected to an external temperature-controlled water tank. The temperature-controlled water tank can be selected from mature market products, which are not part of the present invention and will not be involved in detail here.

[0045] During the wax stick molding process, the water temperature of the cooling water tank 2 is about 10-25°C lower than the highest temperature of the wax melting range of the wax stick molding tube 11. It is absolutely not allowed to use too low a temperature of cooling water for rapid cooling, which is determined by the nature of the wax. The purpose is not to mold only the outer shell of the wax stick, but to make the inside of the wax stick cool more evenly to form a uniform and compact style.

[0046] Wax inlet pipeline 5 is made of stainless steel pipe with smooth inner wall equally, but its diameter is larger than wax stick molding pipe, and purpose is to avoid that internal wax liquid pressure drops too much when multiple molding pipes work together. One end of wax inlet pipeline is closed, and one end is connected to each other with check valve 4, and once pressure exceeds predetermined pressure or blocking phenomenon occurs, wax liquid can flow back to wax tank, avoids danger due to excessive pressure. The side wall top surface of wax inlet pipeline 5 is connected with the bottom of wax stick molding pipe 11. The connection point of each wax stick molding pipe 11 and wax inlet pipeline 5 is all equipped with electronic valve 7, and electronic valve 7 is controlled with PLC circuit board, thereby can reduce manual operation by program control switch closure. Control time can be adjusted according to the supply amount of pump, thereby affects output.

[0047] There are heat preservation devices 6 around the periphery of the wax inlet pipe 5 and around the valve to maintain the fluidity of the liquid wax. The heat preservation device 6 can be realized by a circulating water bath. The circulating water with flowing temperature is used, and the circulating water is stored in a separate water tank. The water tank is placed with a thermostat and a temperature sensor, which can monitor and adjust the water temperature in real time. It has the advantages of fast heating speed, uniform heating, and automatic heat preservation when reaching the set temperature.

[0048] The entire wax stick molding mold is different from a single wax ring passive cooling molding mold. One end of the wax inlet pipe is connected to a plunger pump. The entire plunger pump not only supplies wax liquid to the mold equipment, but also generates pressure that provides an irreplaceable role in the molding and density of the wax stick. These pressures push the solidified wax sticks in the molding mold forward, which not only avoids the shrinkage problem of the wax liquid during the cooling process, but also the huge pressure makes the structure of the wax stick tighter and stronger. Under the action of the plunger pump, wax sticks are squeezed out continuously, thus realizing continuous production. In order to reduce labor, a detection device is installed above the mold. When the extruded wax stick reaches the predetermined length, the detection device is triggered to automatically cut off the wax stick.

[0049] The working method of the wax stick molding mold is specifically as follows:

[0050] Place a sleeve on top of each wax stick forming tube to position the center hole stainless steel piece;

[0051] Liquid wax is pumped into the wax inlet pipe through a plunger pump, and slowly enters the wax stick forming tube through an electronic valve. During the entire working process, a pressure of several megapascals to tens of megapascals can be generated, which pushes the solidified wax stick in the molding mold forward, avoiding the shrinkage problem of the wax liquid during the cooling process. The huge pressure also makes the structure of the wax stick tighter and stronger.

[0052] The wax liquid goes up along the cavity between the wax stick forming tube and the central hole stainless steel part. When the wax liquid reaches the upper part of the wax stick forming tube, the tube sleeve is removed and the wax stick is squeezed out from the upper end of the wax stick forming tube, thereby realizing continuous production.

[0053] When the extruded wax stick reaches a predetermined length, the detection device is triggered to automatically cut off the wax stick;

[0054] During the production process, the water temperature of the cooling water tank is kept 10-25℃ lower than the maximum temperature of the wax melting range of the wax stick forming tube.

[0055] When the wax ring is produced later, the wax stick can be cut into a textile wax ring with a curvature at one end by a cutting device.

[0056] In addition, this production method is also different from the mode of extruding plastic parts by injection molding machines. This is due to the nature of wax, and it is impossible to use an injection molding machine for simple molding. First of all, the specific heat capacity of wax is very large, and the complete cooling time is very long. If an injection molding machine is used for production, the single production time will be too long, the efficiency will be reduced, and continuous production cannot be achieved. Thirdly, the thermal conductivity of wax is poor and the shrinkage is relatively large. The heat inside the wax parts is not easy to dissipate. If a traditional injection molding machine is used for production, the finished product will be molded on the outside, but the inside has not yet solidified, and there will be a shrinkage problem in the middle during the solidification process; finally, the structural strength of wax is not as good as that of plastic, and it cannot be produced horizontally using an extruder. The textile wax ring has higher requirements for uniform internal density distribution. It not only requires external molding, but also requires uniform crystallization and density inside the wax stick. Therefore, it is necessary to add pressure, and various conditions of temperature control and cooling need to be considered. Therefore, these injection-molded wax parts can be used for lost wax castings, but they cannot be used to produce textile wax rings. Finally, since the wax is not strong enough, it is difficult to support the wax stick's own weight and tension laterally, and the wax stick cannot be produced using the same method as producing plastic pipes.

[0057] The wax stick forming mold can avoid the disadvantages of the wax itself and continuously produce textile wax sticks with uniform density and high product quality with high efficiency.

[0058] Embodiment 2 Continuous production of wax ring for textile

[0059] The wax stick forming mold of embodiment 1 is adopted to carry out the continuous production of wax ring for weaving, such as Figure 1 As shown, the specific steps are:

[0060] First, turn on the heat preservation device to heat the metal pipe so that the subsequent liquid wax will not solidify and block the pipe. Then turn on the circulating water bath heater, set the water temperature to 50℃, and start melting the paraffin after the water temperature rises.

[0061] The wax melting tank is heated by heat-conducting oil to melt and mix the raw wax and other components such as surfactants. Take 25 kg of 64# semi-refined paraffin, 0.25 kg of oleic acid, and 0.25 kg of surfactant, add them into the wax melting tank, heat and melt, and stir for 10 minutes after they are completely melted to make them fully mixed.

[0062] Turn on the plunger pump and start pumping out the wax liquid in the wax melting tank. Open the electronic valve of the wax stick forming mold. Then the wax liquid starts to fill the forming tube. The filling time is controlled to be 40 minutes. At this time, the wax liquid slowly enters the cavity of the forming tube and slowly solidifies and forms during the rising process. It is pressed tightly by the pressure. Finally, when the forming tube is full of wax, the wax stick is pushed out at the top. Then put the cut wax sticks on the conveyor belt and send them to the cutting machine, which can cut the wax sticks into small cylinders with one side curved.

[0063] The wax melting tank is not only used to melt the raw material wax, but also can add the surfactants and auxiliary additives such as antistatic agents required for the textile wax ring, which can be fully mixed to make the structural components of the final finished textile wax ring evenly distributed.

[0064] As the power source in the process system, the plunger pump is responsible for pumping the mixed liquid wax in the wax tank into the mold and providing sufficient pressure to the mold. On the one hand, it can make the wax stick structure in the mold more compact, and at the same time avoid the problem of shrinkage holes when the wax in the ordinary mold solidifies. At the same time, the liquid pump also acts as the power source of the mold. When the liquid wax in the mold gradually solidifies, the pressure generated by the plunger pump pushes the wax stick forward gradually. The pressure of the plunger pump can be freely adjusted according to production needs, depending on the number of wax sticks squeezed out of the molding mold at the same time. The flow rate per unit time can also be adjusted, and the flow rate also depends on the number of wax sticks squeezed out of the molding mold at the same time.

[0065] Metal pipes are used to connect the wax melting tank and the plunger pump, as well as the plunger pump and the forming mold. The metal pipe can improve durability and be sufficient to withstand the pressure generated by the plunger pump. The insulation device on the outer periphery of the metal pipe is to maintain the fluidity of the liquid wax. The metal pipe between the wax melting tank and the plunger pump can be heated by an electric heating tape. There is an insulation device on the outside of the metal pipe between the plunger pump and the forming mold.

[0066] The forming tube plays the role of converting liquid wax into wax sticks, and in the process of solidifying into wax sticks, the liquid wax continuously comes out in the form of solid wax sticks at the other end, thus realizing continuous production.

[0067] The wax stick ejected from the cooling molding mold is cut off with a tool, placed on a conveyor belt, and cut into standard wax rings according to the specified length and arc on a special cutting device, thus completing the entire continuous product process.

[0068] Although it takes a long time for a single wax stick to enter the mold and come out, multiple molds can be used to form and discharge materials together, exchanging quantity for time and achieving continuous production.

[0069] The whole process can be summarized as wax mixing → pumping into molds for forming → cutting into small wax rings of equal length, with an arc cut at one end. The weight of a single textile wax ring is about 20 grams, dense and uniform, with no pores inside, and finally completing the continuous production of textile wax rings.

[0070] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A continuous production process for wax rings for textiles, characterized in that: The wax and the co-solvent are melted and mixed in a wax tank according to a proportion, the wax liquid is extracted by a plunger pump and pumped into a wax stick forming mold, the formed wax stick is ejected from the wax stick forming mold under the pressure of the plunger pump, and then cut into small cylinders with curved surfaces, i.e., wax rings for textiles; During the production process, cooling water is used to cool the wax stick forming mold.

2. The continuous production process of textile wax rings according to claim 1, characterized in that: The wax stick forming mold comprises a cooling water tank (2), wherein a plurality of vertically placed wax stick forming tubes (11) are arranged in the cooling water tank (2), and the bottom end of each wax stick forming tube (11) passes through the bottom of the cooling water tank (2) and is connected to the wax inlet pipeline (5) through an electronic valve (7); A central hole stainless steel piece (9) coaxial with the wax stick forming tube (11) is provided inside the wax stick forming tube (11) along the axial direction, and a lower wall surface of the central hole stainless steel piece (9) is fixedly connected to an inner wall surface of the wax stick forming tube (11) via at least one fixing piece (8); The parts of all wax stick forming tubes (11) exposed from the bottom of the cooling water tank (2), the electronic valves (7) and the outside of the wax inlet pipeline (5) are provided with a heat preservation device (6).

3. The continuous production process of textile wax rings according to claim 2, characterized in that: The top of each wax stick forming tube (11) is provided with a detachable tube sleeve (1) for positioning the central hole stainless steel piece (9); the height of the wax stick forming tube (11) is 60-100 cm.

4. The continuous production process of textile wax rings according to claim 3, characterized in that: The lower side wall of the cooling water tank (2) is provided with a water inlet (3), and the upper side wall is provided with a water outlet (10); a check valve (4) is installed on the wax inlet pipeline (5).

5. The continuous production process of textile wax rings according to claim 4, characterized in that: The central hole stainless steel part (9) is a solid structure, and its cross section is circular or square.

6. The continuous production process of textile wax rings according to claim 5, characterized in that: The water temperature of the cooling water tank (2) is 10-25° C. lower than the maximum temperature of the wax melting range of the wax stick forming tube (11).

7. The continuous production process of textile wax rings according to claim 6, characterized in that: One end of the wax inlet pipe (5) is connected to a plunger pump to pump wax liquid into the wax stick forming mold; a detection device is installed above the mold, and when the extruded wax stick reaches a predetermined length, the detection device is triggered to automatically cut off the wax stick.

8. The continuous production process of textile wax rings according to claim 7, characterized in that: The heat preservation device (6) is a heat preservation jacket or a circulating water bath; the electronic valve (7) is controlled by a PLC circuit board; the wax stick forming tube (11) and the wax inlet pipeline (5) are both made of stainless steel tubes with smooth inner walls, and the diameter of the wax inlet pipeline (5) is larger than the diameter of the wax stick forming tube (11).

9. The continuous production process of textile wax rings according to claim 1, characterized in that: The wax melting tank is an electrically heated heat-conducting oil type wax melting tank with adjustable temperature.

10. The continuous production process of textile wax rings according to claim 1, characterized in that: The pressure of the plunger pump is 1-100 MPa.

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