Woven hose connecting structure of spinning metering pump

Abstract

The utility model provides a woven hose connecting structure of a spinning metering pump, which comprises a pump plate connected with the spinning metering pump, the pump plate is sequentially provided with a plurality of steps from the center to the outside, the heights of the steps are reduced step by step from the center of the pump plate to the outside, each step is connected with a plurality of joints, and the joints are connected with the pump plate. The lengths of the connectors located on the same step are equal, and from the center of the pump plate to the outside, the lengths of the connectors are shortened along with step-by-step reduction of the height of the steps. The multiple steps are arranged on the pump plate, and the joints with different lengths are arranged on the different steps, so that the joints on the different steps are farther away from the connection position of the braided hose from the center of the pump plate to the outside. When the braided hose on the inner side is exploded and needs to be replaced, the problem that the braided hose on the outer side is damaged easily due to the fact that the joint gap between the two different steps is larger can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of spinning production equipment, in particular to a braided hose connection structure of a spinning metering pump. Background Art

[0002] The continuous production process of dry spandex mainly includes two processes: polymerization and spinning. The polymerization process mainly includes the preparation of prepolymer, chain extension reaction, and stock solution aging. The spinning process mainly refers to the stock solution being pressurized to about 30kg by a booster pump, and then sent to a metering pump for metering by a melt pipe, and then transported to the spinneret by a pump plate, a joint, and a metal braided hose. The melt stream extruded from the spinneret hole is cooled and solidified into fiber in the tunnel, and then wound on the bobbin by a winding mechanism after oiling.

[0003] The front end (output end) of the existing spinning metering pump is connected to a pump plate 1. According to the number of spinning heads, the pump plate is provided with threaded holes matching the number of spinning heads. The threaded holes are arranged outward from the center of the pump plate. The threaded holes are connected to a connector 2, both ends of which have threads, and one end of a metal braided hose 3 is threadedly connected to the connector.

[0004] When the metal braided hose on the inner ring bursts, it is necessary to remove the pump plate of the metering pump and remove the metal braided hose in sequence from the outer ring for replacement. During installation, the braided hose must be disassembled and assembled in sequence from the inner ring to the outer ring, which is time-consuming.

[0005] In response to the above technical problems, Chinese Patent Publication No. CN203441689U provides a technical solution to the problem: the closer the distance to the center of the pump plate, the longer the length of the joint, and the length of the joints with the same distance from the center of the pump plate are consistent; the length difference between joints of different lengths is more than 2 cm.

[0006] However, this technical solution still has defects. When the metal braided hose 3 located at the inner ring bursts (such as Figure 1 3A in the figure), the metal braided hose located in the inner or outer ring will Figure 1 The part where the metal braided hose is connected to the connector (3B in the figure) is blocked, which hinders the removal of the metal braided hose.

[0007] If the outer metal braided hose is bent to expose the part where the metal braided hose that has burst is connected to the joint, the joints on the pump plate are arranged densely, and the joint lengths between adjacent circles differ by only 2 cm. The lengths of joints with the same nominal diameter are limited, and the length difference between joints of different lengths cannot be further expanded. Therefore, in order to expose the part where the metal braided hose that has burst is connected to the joint, it is necessary to make the bending deformation of the metal braided hose near the joint particularly large within a limited space (such as Figure 2However, the above operation will cause the bending radius of the metal braided hose to exceed the minimum bending radius specified for the metal braided hose, making the remaining metal braided hose susceptible to damage. Utility Model Content

[0008] The technical problem to be solved by the utility model is to provide a braided hose connection structure of a spinning metering pump, which can facilitate the disassembly and assembly of the braided hose and the pump plate.

[0009] The utility model is achieved in this way:

[0010] The utility model provides a braided hose connection structure for a spinning metering pump, comprising a pump plate connected to the spinning metering pump, wherein the pump plate is sequentially provided with a plurality of steps from the center to the outside, and the height of the steps decreases step by step from the center of the pump plate to the outside, and each step of the steps is connected to a plurality of joints, the lengths of the joints on the same step are equal, and the lengths of the joints decrease as the height of the steps decreases step by step from the center of the pump plate to the outside.

[0011] Furthermore, the joints are arranged in an annular array on corresponding steps with the center of the center hole of the pump plate as the center, and the positions of the joints on two adjacent steps are staggered.

[0012] Furthermore, the length of the joints on two adjacent steps differs by at least 2 cm.

[0013] Furthermore, the connector is a male connector of a quick connector.

[0014] The advantage of the utility model is that by arranging multiple steps on the pump plate and configuring joints of different lengths on different steps, the joints on different steps are farther away from the connection position of the braided hose from the center of the pump plate to the outside. When the inner braided hose bursts and needs to be replaced, the gap between the joints of two different steps is larger, so the problem of excessive bending of the outer braided hose, which causes the braided hose to be easily damaged, can be avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below in conjunction with the embodiments with reference to the accompanying drawings.

[0016] Figure 1 It is a schematic diagram of the connection structure of a pump plate, a joint and a metal braided hose in the prior art.

[0017] Figure 2 It is a schematic diagram of the outer circle of the metal braided hose bursting and bending after the inner circle of the metal braided hose bursts in the prior art.

[0018] Figure 3 This is a schematic diagram of the structure of the utility model Figure 1 .

[0019] Figure 4 This is a schematic diagram of the structure of the utility model Figure 2 .

[0020] Description of the numbers in the figure:

[0021] 10. Pump plate; 20. Step; 21. First step; 22. Second step; 23. Third step; 30. Connector; 31. First connector; 32. Second connector; 33. Third connector; 40. Braided hose. DETAILED DESCRIPTION

[0022] See also Figure 3 to Figure 4 The utility model provides a braided hose connection structure of a spinning metering pump, including a pump plate 10 connected to the spinning metering pump, wherein the pump plate 10 is sequentially provided with a plurality of steps 20 from the center to the outside, and the height of the steps 20 decreases step by step from the center of the pump plate 10 to the outside, and the height difference of each step 20 can be 3-8cm. Each step 20 is connected with a plurality of connectors 30, and 16 connectors are arranged on each step. The lengths of the connectors 30 located on the same step 20 are equal, and the lengths of the connectors 30 decrease as the height of the steps 20 decreases step by step from the center of the pump plate 10 to the outside. The number of the steps 20 is set to three, and from the center of the pump plate 10 to the outside, the three steps 20 are sequentially named as the first step 21, the second step 22 and the third step 23, the connector 30 installed on the first step 21 is the first connector 31, the connector 30 installed on the second step 22 is the second connector 32, and the connector 30 installed on the third step 23 is the third connector 33. The lengths of the three joints 30 are as follows: the length of the first joint 31 > the length of the second joint 32 > the length of the third joint 33;

[0023] By providing multiple steps 20 on the pump plate 10 and configuring connectors 30 of different lengths on different steps 20, the connectors 30 on different steps 20 are further away from the center of the pump plate 10 toward the outside from the braided hose 40. Figure 3 When the inner braided hose 40 bursts and needs to be replaced, since the gap between the joints 30 of the two different steps 20 is larger, the outer braided hose 40 can be prevented from being excessively bent, which would cause the braided hose 40 to be easily damaged.

[0024] Specifically, the joints 30 are arranged in an annular array on the corresponding steps 20 with the center of the central hole of the pump plate 10 as the center, and the positions of the joints 30 on two adjacent steps 20 are staggered. Figure 4 As shown, each second joint 32 is arranged on the bisector of the angle formed by two adjacent first joints 31 (or third joints 33) and the central hole of the pump plate 10, as shown in FIG. Figure 4shown.

[0025] Specifically, the lengths of the joints 30 on two adjacent steps 20 differ by at least 2 cm.

[0026] Specifically, the connector 30 is a male head of a quick connector 30. The end of the braided hose 40 is connected with a female head that matches the male head. The quick connector 30 is a connector 30 that can connect or disconnect the pipeline without tools (such as a wrench). The quick connector 30 in this application adopts the quick connector 30 already available on the market. When the braided hose 40 is connected to the connector 30, a polytetrafluoroethylene gasket is required to be padded inside. In the prior art, the braided hose 40 and the connector 30 are threadedly connected. In order to make the braided hose 40 and the connector 30 more tightly connected, the staff usually over-tightens the braided hose 40. If the tightening force is too large, the gasket is easily pressed off. Once the gasket is pressed off, it will cause the metal pipe to be blocked, which brings quality risks to production. In this application, the quick connector 30 is used to connect. After the female head at the end of the braided hose 40 is installed at the male head, the braided hose 40 is connected to the pump plate 10. Furthermore, since the connection positions of the male and female heads are relatively fixed, the problem of the gasket being flattened due to over-tightening of the braided hose 40 in the prior art can be prevented.

[0027] Although the specific implementation methods of the present invention are described above, those skilled in the art should understand that the specific embodiments described are only illustrative and are not intended to limit the scope of the present invention. Equivalent modifications and changes made by those skilled in the art in accordance with the spirit of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. A braided hose connection structure for a spinning metering pump, Features: It includes a pump plate connected to a spinning metering pump, wherein the pump plate is provided with a plurality of steps from the center to the outside, and the height of the steps decreases step by step from the center of the pump plate to the outside, and each step is connected to a plurality of joints, and the lengths of the joints on the same step are equal, and the lengths of the joints decrease as the height of the steps decreases step by step from the center of the pump plate to the outside.

2. A braided hose connection structure for a spinning metering pump as claimed in claim 1, Features: The joints are arranged in an annular array on corresponding steps with the center of the center hole of the pump plate as the center, and the positions of the joints on two adjacent steps are staggered.

3. A braided hose connection structure for a spinning metering pump as claimed in claim 2, Features: The lengths of the joints on two adjacent steps differ by at least 2 cm.

4. A braided hose connection structure for a spinning metering pump as claimed in claim 1, Features: The connector is a male connector of a quick connector.

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