Spinning die head provided with multiple pumps
By setting an independent metering pump in the spinning die, the problem of fabric weight deviation caused by uneven spinning was solved, and the uniformity of fabric weight was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-20
- Publication Date
- 2026-03-31
AI Technical Summary
Existing spinning dies suffer from uneven spinning due to flow channel processing errors, resulting in significant deviations in fabric weight.
The multi-pump spinning die head design is adopted, and the metering pump is moved to the side wall of the die head body. Each branch channel is equipped with an independent metering pump, and the amount of yarn extruded in each branch channel is controlled by the independent metering pump.
It achieves uniform fabric weight and solves the problem of uneven spinning.
Smart Images
Figure CN224062961U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of spinning technology, specifically relating to spinneret assemblies, and more particularly to a spinning die head with a multi-pump configuration. Background Technology
[0002] Most spinning dies on the market today have a process where the melt enters the die inlet after passing through a metering pump, and then flows to the spinneret after being distributed through the flow channels in the die.
[0003] However, in the above scheme, due to the processing error of the die head flow channel, the fluid is easily uneven across the width, resulting in a large deviation in the fabric weight.
[0004] Therefore, how to solve the technical problem of uneven filament extrusion from each spinneret on the die head is a problem that urgently needs to be solved by those skilled in the art.
[0005] It should be noted that the information disclosed in this background section is only for understanding the background technology of the present application concept, and therefore, the above description is not considered to constitute prior art information. Utility Model Content
[0006] This disclosure provides at least one embodiment of a multi-pump spinning die.
[0007] In a first aspect, embodiments of this disclosure provide a multi-pump spinning die head, comprising: a die head body having a flow channel therein, the flow channel comprising: a main channel and a plurality of branch channels communicating with the main channel; wherein the main channel is provided with an inlet; each of the branch channels is provided with at least one spinneret; and each of the branch channels is provided with an independent metering pump.
[0008] In one optional embodiment, the branch channel includes: an inlet transition channel and an outlet transition channel; one end of the inlet transition channel is connected to the main channel, and the other end extends to the side wall of the die head body; one end of the outlet transition channel extends to the side wall of the die head body; wherein, the metering pump is disposed on the side wall of the die head body and is connected to the inlet transition channel and the outlet transition channel located on the side wall of the die head body.
[0009] In one alternative embodiment, the branch channel is provided with a spinneret; the spinneret is located on the lower surface of the die head body and is connected to the other end of the outflow transfer channel.
[0010] In one optional embodiment, the branch channel is provided with two spinnerets; the branch channel further includes a diversion and transfer channel; the other end of the outflow transfer channel is connected to the middle of the diversion and transfer channel; both spinnerets are located on the lower surface of the die head body and are connected to the diversion and transfer channel.
[0011] In one optional implementation, the main channel includes: a first horizontal channel; wherein the inlet is connected to the first horizontal channel; and one end of the inlet transfer channel is connected to the first horizontal channel.
[0012] In one optional implementation, the main channel includes: a first horizontal channel and a second horizontal channel; the inlet is connected to the second horizontal channel; the first horizontal channel is connected to the second horizontal channel through a plurality of flow passages; and the inlet transfer channel is connected to the first horizontal channel.
[0013] In one optional embodiment, both the inlet transition channel and the outlet transition channel are horizontally arranged, with the inlet transition channel located above the outlet transition channel.
[0014] In one alternative embodiment, the two spinnerets are symmetrically arranged along the outflow transition channel and have the same path length as the outflow transition channel.
[0015] Secondly, this disclosure also provides a multi-pump spinning die head, comprising: an inlet transition channel formed in the die head body, one end of which extends to the side wall of the die head body; an outlet transition channel formed in the die head body, one end of which extends to the side wall of the die head body; and a metering pump disposed on the side wall of the die head body and connected to the inlet transition channel and the outlet transition channel.
[0016] In one alternative embodiment, the branch channel is provided with at least one spinneret; the spinneret is connected to the outflow transfer channel.
[0017] The beneficial effect of this utility model is that the multi-pump spinning die head in this configuration moves the metering pump to the side wall of the die head body, so that each branch channel is equipped with an independent metering pump, thereby adjusting the amount of yarn sprayed in each branch channel, thus ensuring the uniformity of fabric weight.
[0018] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention are realized and obtained through the structures particularly pointed out in the description and the accompanying drawings.
[0019] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described in detail below with reference to the accompanying drawings. Attached Figure Description
[0020] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0021] Figure 1 This is a cross-sectional view of a multi-pump spinning die provided in an embodiment of the present disclosure;
[0022] Figure 2 This is a side sectional view of a multi-pump spinning die provided in an embodiment of the present disclosure;
[0023] Figure 3 A side view of a multi-pump spinning die provided in an embodiment of this disclosure;
[0024] Figure 4 A side view of another configuration of a multi-pump spinning die provided in an embodiment of this disclosure.
[0025] In the picture:
[0026] Die body 1;
[0027] Flow channel 2, main channel 21, inlet 211, first horizontal channel 212, second horizontal channel 213, flow passage 214, branch channel 22, spinneret 221, inlet transfer channel 222, outlet transfer channel 223, diversion transfer channel 224;
[0028] Metering pump 3. Detailed Implementation
[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0030] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, in the figures, the thickness of parts may be exaggerated or reduced for the purpose of effectively depicting the technical content.
[0031] The following detailed description, with reference to the accompanying drawings, describes some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.
[0032] like Figure 1 As shown, at least one embodiment provides a multi-pump spinning die head, including: a die head body 1, which has a flow channel 2 inside, the flow channel 2 including: a main channel 21 and a plurality of branch channels 22 communicating with the main channel 21.
[0033] like Figure 1 As shown, in some embodiments, the main channel 21 is provided with an inlet 211, through which the melt is received and then distributed to each branch channel 22.
[0034] like Figure 1 As shown, in some embodiments, each branch channel 22 is provided with at least one spinneret 221 to eject the received melt.
[0035] like Figure 2 As shown, in some embodiments, each branch channel 22 is equipped with an independent metering pump 3. The metering pump 3 adjusts the amount of melt ejected from the corresponding spinneret 221 so that the amount of melt ejected from each branch channel 22 is the same, thereby preventing the fabric from having a weight deviation.
[0036] like Figure 2 As shown, in some embodiments, the branch channel 22 includes: an inlet transition channel 222 and an outlet transition channel 223; one end of the inlet transition channel 222 is connected to the main channel 21, and the other end extends to the side wall of the die head body 1; one end of the outlet transition channel 223 extends to the side wall of the die head body 1; wherein, the metering pump 3 is disposed on the side wall of the die head body 1 and is connected to the inlet transition channel 222 and the outlet transition channel 223 located on the side wall of the die head body 1, so that the melt in the inlet transition channel 222 enters the outlet transition channel 223 after passing through the metering pump 3.
[0037] In this embodiment, in order to facilitate the installation of the metering pump 3, one end of the inlet transition channel 222 and the outlet transition channel 223 are both extended to the side wall of the mold head body 1. At this time, the metering pump 3 only needs to be connected to the two ports on the side wall to realize the connection of the pipeline.
[0038] In one application scenario, in some embodiments, the branch channel 22 is provided with a spinneret 221; the spinneret 221 is located on the lower surface of the die head body 1 and is connected to the other end of the outflow transfer channel 223.
[0039] In this embodiment, the branch channel 22 is provided with only one spinneret 221, that is, one metering pump 3 controls only one spinneret 221. This control method has the highest accuracy, but the required number of metering pumps 3 will be large.
[0040] In another application scenario, such as Figure 1 As shown, in some embodiments, the branch channel 22 is provided with two spinnerets 221; the branch channel 22 also includes a diversion and transfer channel 224; the other end of the outflow transfer channel 223 is connected to the middle of the diversion and transfer channel 224; both spinnerets 221 are located on the lower surface of the die head body 1 and are connected to the diversion and transfer channel 224.
[0041] In this embodiment, one metering pump 3 can control the total amount of filaments extruded from two spinnerets 221. Although this control method reduces the number of metering pumps 3 required, the metering pump 3 cannot precisely control the amount of filaments extruded from each spinneret 221.
[0042] In this application scenario, the two spinnerets 221 are symmetrically arranged along the outflow transition channel 223, and the path length between them is the same; this design can make the amount of spinnerets produced by the two spinnerets 221 as similar as possible.
[0043] In one application scenario, such as Figure 1 As shown, in some embodiments, the main channel 21 includes: a first horizontal channel 212; wherein the inlet 211 is connected to the first horizontal channel 212; and one end of the inlet transition channel 222 is connected to the first horizontal channel 212.
[0044] In this embodiment, the melt enters the first horizontal channel 212 through the inlet 211, and then is diverted from the first horizontal channel 212 to each inlet transfer channel 222.
[0045] In another application scenario, such as Figure 1 As shown, in some embodiments, the main channel 21 includes: a first horizontal channel 212 and a second horizontal channel 213; an inlet 211 is connected to the second horizontal channel 213; the first horizontal channel 212 is connected to the second horizontal channel 213 through a plurality of flow passages 214; and an inlet transfer channel 222 is connected to the first horizontal channel 212.
[0046] In this embodiment, the melt enters the second horizontal channel 213 through the inlet 211, and then flows from the second horizontal channel 213 through each flow channel 214 into the first horizontal channel 212, and finally flows from the first horizontal channel 212 into each inlet transfer channel 222. This method can make the melt flow evenly to each region of the first horizontal channel 212, so that the pressure in each region is relatively uniform.
[0047] In some embodiments, both the inflow transition channel 222 and the outflow transition channel 223 are horizontally arranged, with the inflow transition channel 222 located above the outflow transition channel 223.
[0048] At least one embodiment provides a multi-pump spinning die, comprising: an inlet transition channel 222, which is formed inside the die body 1 and extends one end to the side wall of the die body 1; an outlet transition channel 223, which is formed inside the die body 1 and extends one end to the side wall of the die body 1; and a metering pump 3, which is disposed on the side wall of the die body 1 and connects the inlet transition channel 222 and the outlet transition channel 223.
[0049] In some embodiments, the branch channel 22 is provided with at least one spinneret 221; the spinneret 221 is connected to the outflow transfer channel 223.
[0050] In one application scenario, such as Figure 3 As shown, in some embodiments, all metering pumps 3 are mounted on one side wall of the mold head body 1.
[0051] In another application scenario, such as Figure 4 As shown, in some embodiments, adjacent metering pumps 3 are respectively arranged on the two side walls of the mold head body 1, which can provide a large space for the metering pumps 3 to be installed.
[0052] In summary, this multi-pump spinning die head configuration moves the metering pump 3 to the side wall of the die head body 1, so that each branch channel 22 is equipped with an independent metering pump 3. This allows for the control of the amount of yarn spun in each branch channel 22, thereby ensuring the uniformity of the fabric weight.
[0053] In this document, when it is said that the first component is located on the second component, this can mean that the first component can be directly formed on the second component, or that the third component can be inserted between the first component and the second component.
[0054] In this document, when an element or layer is referred to as “located,” “joined to,” “connected to,” “attached to,” or “coupled to” another element or layer, it may be directly located, joined, connected, attached to, or coupled to the other element or layer, or there may be intermediate elements or layers present. Conversely, when an element is referred to as “directly on another element or layer,” “directly joined to,” “directly connected to,” “directly attached to,” or “directly coupled to” another element or layer, there may be no intermediate elements or layers present. Other terms used to describe relationships between elements should be interpreted in a similar manner (e.g., “between” versus “directly between,” “adjacent” versus “directly adjacent,” etc.). As used herein, the term “and / or” includes any and all combinations of one or more of the related listed items.
[0055] In this document, exemplary embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. As used herein, expressions such as “at least one of…” modify the entire list of elements when following a list of elements, rather than individual elements in the list. For example, the expression “at least one of a, b, and c” should be understood to include only a, only b, only c, both a and b, both a and c, both b and c, or all of a, b, and c.
[0056] The terminology used herein is for the purpose of describing specific exemplary configurations only and is not intended to be limiting. As used herein, the singular articles “a,” “an,” and “the” may also be intended to include plural forms unless otherwise clearly stated herein. The terms “comprising,” “including,” and “having” are inclusive and thus specify the presence of features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein should not be construed as requiring them to be performed in the specific order discussed or shown, unless specifically identified as such. Additional or alternative steps may be employed.
[0057] As used herein, the phrases “in one embodiment,” “according to one embodiment,” “in some embodiments,” etc., generally refer to the fact that a particular feature, structure, or characteristic following the phrase can be included in at least one embodiment of this disclosure. Therefore, a particular feature, structure, or characteristic can be included in more than one embodiment of this disclosure, such that these phrases do not necessarily refer to the same embodiment. As used herein, the terms “example,” “exemplary,” etc., are used to “serve as an example, instance, or illustration.” Any implementation, aspect, or design described herein as “example” or “exemplary” is not necessarily to be construed as preferred or superior to other implementations, aspects, or designs. Rather, the use of the terms “example,” “exemplary,” etc., is intended to present concepts in a specific manner.
[0058] In the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0059] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence unless expressly indicated herein. Therefore, without departing from the teachings of the exemplary embodiments, the first element, component, region, layer, or segment discussed above may be referred to as the second element, component, region, layer, or segment.
[0060] Spatially relative terms, such as “inside,” “outside,” “below,” “below,” “down,” “above,” “up,” etc., may be used herein to describe the relationship between one element or feature illustrated in the figures and another element or feature. In addition to the orientations depicted in the figures, spatially relative terms may be intended to cover different orientations of the device in use or operation. For example, if the device in the figure is flipped, an element described as “below” or “below” other elements or features would be oriented as “above” other elements or features. Thus, the example term “below” can cover both above and below orientations. The device may be oriented in other ways (rotated 90 degrees or in other orientations), and the spatially relative descriptors used herein are interpreted accordingly.
[0061] In the above discussion, unless otherwise stated, when used to describe numerical values, the terms “about,” “approximately,” “basically,” etc., indicate a change of + / - 10% in that value.
[0062] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.
Claims
1. A spinning die head with a multi-pump configuration, characterized in that, The application relates to a multi-pump spinning nozzle, which comprises a nozzle body (1) provided with a flow channel (2), wherein the flow channel (2) comprises a main channel (21) and a plurality of branch channels (22) communicated with the main channel (21); wherein the main channel (21) is provided with an inlet (211); each branch channel (22) is provided with at least one spinneret (221); each branch channel (22) is provided with an independent metering pump (3).
2. The multi-pump spinning nozzle according to claim 1, wherein the branch channel (22) comprises an inlet transition channel (222) and an outlet transition channel (223); one end of the inlet transition channel (222) is connected with the main channel (21), and the other end extends to the side wall of the nozzle body (1); one end of the outlet transition channel (223) extends to the side wall of the nozzle body (1); the metering pump (3) is arranged on the side wall of the nozzle body (1) and connected with the inlet transition channel (222) and the outlet transition channel (223) arranged on the side wall of the nozzle body (1).
3. The multi-pump spinning nozzle according to claim 2, wherein the branch channel (22) is provided with one spinneret (221); the spinneret (221) is arranged on the lower surface of the nozzle body (1) and communicated with the other end of the outlet transition channel (223).
4. The multi-pump spinning nozzle according to claim 2, wherein the branch channel (22) is provided with two spinnerets (221); the branch channel (22) further comprises a distribution transition channel (224); the other end of the outlet transition channel (223) is communicated with the middle part of the distribution transition channel (224); the two spinnerets (221) are arranged on the lower surface of the nozzle body (1) and communicated with the distribution transition channel (224).
5. The multi-pump spinning nozzle according to claim 2, wherein the main channel (21) comprises a first horizontal channel (212); wherein the inlet (211) is communicated with the first horizontal channel (212); one end of the inlet transition channel (222) is communicated with the first horizontal channel (212).
6. The multi-pump spinning nozzle according to claim 2, wherein the main channel (21) comprises a first horizontal channel (212) and a second horizontal channel (213); the inlet (211) is communicated with the second horizontal channel (213); the first horizontal channel (212) is communicated with the second horizontal channel (213) through a plurality of flow passages (214); the inlet transition channel (222) is communicated with the first horizontal channel (212).
7. The multi-pump spinning nozzle according to claim 2, wherein the inlet transition channel (222) and the outlet transition channel (223) are horizontally arranged, and the inlet transition channel (222) is arranged above the outlet transition channel (223).
8. The multi-pump spinning nozzle according to claim 4, wherein The two said spinnerets (221) are symmetrically arranged along the outflow transition channel (223) and have the same path length with the outflow transition channel (223).
9. A spinning die head with a multi-pump configuration, characterized in that, The application relates to a multi-pump spinning head. The inflow transition channel (222) is arranged in the die body (1) and extends to the side wall of the die body (1) at one end; The outflow transition channel (223) is arranged in the die body (1) and extends to the side wall of the die body (1) at one end; The metering pump (3) is arranged on the side wall of the die body (1) and is communicated with the inflow transition channel (222) and the outflow transition channel (223).
10. The multi-pump spinning head according to claim 9, wherein The branch channel (22) is provided with at least one spinneret (221); The spinneret (221) is communicated with the outflow transition channel (223).