Single-screw conveying equipment for glass fiber impregnating compound

Abstract

The utility model relates to the technical field of single-screw pumps, in particular to a glass fiber impregnating compound single-screw conveying device which comprises a pump body, a stator, a driving shaft, a rotating assembly and a sealing assembly. The sealing assembly comprises an end cover, a first sealing gasket, an air bag and a second sealing gasket, the end cover is fixedly connected with the pump body, the first sealing gasket is connected with the end cover, the air bag is connected with the first sealing gasket, the second sealing gasket is connected with the end cover, and the driving shaft is provided with a sealing groove. Meanwhile, in the process that the air bag is filled with the sealing groove, the second sealing gasket is further extruded, so that the second sealing gasket abuts against the driving shaft, a second layer of sealing is formed, the sealing effect between the driving shaft and the end cover is improved, and the situation that when the conveying pressure is large, the air bag is deformed, and the sealing groove is filled with the sealing groove is avoided. And leakage of the glass fiber impregnating compound is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of single screw pumps, in particular to single screw conveying equipment for glass fiber impregnation agent. Background Art

[0002] Glass fiber sizing is an indispensable industrial consumable in glass fiber production. Single-screw pumps are generally used to deliver glass fiber sizing. Traditional single-screw pumps have poor sealing effects, and the pump body is easily corroded during the delivery process, affecting the performance of the single-screw pump.

[0003] Prior art CN217712921U discloses an anti-corrosion single-screw pump, which includes a pump body, a drive shaft is arranged in the middle of one end of the pump body, a coupling is arranged on the periphery of the drive shaft extending out of the one end of the pump body, a first bearing is arranged on the inner wall of the pump body outside the drive shaft, and a second bearing is arranged on one side of the first bearing. By arranging a first sealing cover, a second sealing cover and a sealing filler, the drive shaft and the inner wall of the pump body can have good sealing performance, preventing the material transported by the pump body from flowing to the driving end of the pump body, and preventing the material from corroding the driving end of the pump body. By spraying Teflon coating on the inner wall of the pump body, the outer wall of the stator, the outer wall of the screw shaft, the outer wall of the transmission shaft, the outer wall of the first universal joint, the outer wall of the second universal joint and the outer wall of the flow guide body, the part in contact with the material in the single-screw pump can have good anti-corrosion performance, thereby improving the anti-corrosion performance and durability of the single-screw pump.

[0004] The above device enhances the corrosion resistance of the pump body through Teflon coating, and seals the drive shaft and the pump body through sealing packing. However, when the delivery pressure is high, the packing seal cannot effectively seal, causing the delivery liquid to leak easily, affecting the sealing effect. Utility Model Content

[0005] The utility model aims to provide a single-screw conveying device for glass fiber impregnation agent, which solves the problem that when the conveying pressure of an existing corrosion-resistant single-screw pump is relatively high, the packing sealing method cannot be effectively sealed, resulting in leakage of the conveyed liquid and affecting the sealing effect.

[0006] To achieve the above-mentioned purpose, the utility model provides a single-screw conveying device for glass fiber impregnation agent, including a pump body, a stator, a drive shaft and a rotating assembly, wherein the drive shaft is rotatably mounted on the pump body, the stator is mounted inside the pump body, the rotating assembly is arranged on the drive shaft, and also includes a sealing assembly; the sealing assembly includes an end cover, a first sealing gasket, an airbag and a second sealing gasket, the end cover is fixedly connected to the pump body and rotatably connected to the drive shaft, and is sleeved on the drive shaft, the first sealing gasket is connected to the end cover, abuts against the drive shaft, and is arranged on the end cover, the airbag is connected to the first sealing gasket and is located on one side of the first sealing gasket, the second sealing gasket is connected to the end cover and is located on a side of the end cover close to the airbag, the drive shaft has a sealing groove, the sealing groove is arranged on the drive shaft, and is located on a side of the drive shaft close to the first sealing gasket.

[0007] Wherein, the first sealing gasket includes a gasket body and a sealing ring, the gasket body is connected to the end cover and the airbag, and is arranged on the end cover; the sealing ring is connected to the gasket body, abuts against the drive shaft, and is sleeved on the drive shaft.

[0008] Wherein, the first sealing gasket further comprises a spring sheet, which is connected to the end cover and the gasket body and is located on a side of the gasket body away from the airbag.

[0009] Wherein, the sealing assembly further comprises a sealing cover, which is fixedly connected to the end cover and is located on one side of the end cover; and filler is filled between the sealing cover and the end cover.

[0010] Wherein, the rotating assembly includes a universal joint, an intermediate shaft and a rotor, the universal joint is connected to the drive shaft and is located at one end of the drive shaft; the intermediate shaft is connected to the universal joint and is arranged on the universal joint; the rotor is connected to the intermediate shaft and is located at one end of the intermediate shaft.

[0011] The utility model discloses a single-screw conveying device for glass fiber sizing, wherein the first sealing pad abuts against the driving shaft to seal the gap between the driving shaft and the end cover to avoid leakage of the glass fiber sizing. When the conveying pressure is relatively high, the first sealing pad is squeezed and deformed by the glass fiber sizing, thereby causing the first sealing pad to squeeze the airbag, and the airbag is deformed and fills the sealing groove, thereby sealing the sealing groove to avoid leakage of the glass fiber sizing when the conveying pressure is relatively high. At the same time, the second sealing pad is also squeezed in the process of the airbag filling the sealing groove, so that the second sealing pad abuts against the driving shaft to form a second layer of sealing. When the conveying pressure decreases, the first sealing pad and the airbag are reset, and at this time, the second sealing pad is also reset under the action of its own elastic force, so that the second sealing pad stops contacting with the driving shaft, thereby avoiding wear of the second sealing pad, thereby improving the sealing effect between the driving shaft and the end cover, and avoiding leakage of the glass fiber sizing when the conveying pressure is relatively high. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0013] Figure 1 It is a schematic diagram of the overall structure of a single-screw conveying device for glass fiber sizing agent according to the first embodiment of the utility model.

[0014] Figure 2 It is a structural schematic diagram of the sealing assembly of the first embodiment of the utility model.

[0015] Figure 3 The first embodiment of the utility model Figure 2 Enlarged view of point A.

[0016] Figure 4 It is a structural schematic diagram of a rotating assembly of the second embodiment of the utility model.

[0017] In the figure: 101-pump body, 102-stator, 103-drive shaft, 104-rotating component, 105-sealing component, 106-end cover, 107-first sealing gasket, 108-airbag, 109-second sealing gasket, 110-pad body, 111-sealing ring, 112-spring leaf, 113-sealing cover, 114-filler, 115-sealing groove, 201-universal joint, 202-intermediate shaft, 203-rotor. DETAILED DESCRIPTION

[0018] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0019] First embodiment:

[0020] See also Figures 1 to 3 ,in Figure 1 This is the overall structural diagram of the single screw conveying equipment for glass fiber sizing. Figure 2 It is a schematic diagram of the structure of the sealing component. Figure 3 yes Figure 2 Enlarged view of point A.

[0021] The utility model provides a single screw conveying device for glass fiber sizing agent, including a pump body 101, a stator 102, a drive shaft 103, a rotating assembly 104 and a sealing assembly 105, wherein the sealing assembly 105 includes an end cover 106, a first sealing pad 107, an airbag 108 and a second sealing pad 109, wherein the first sealing pad 107 includes a pad body 110, a sealing ring 111 and a spring sheet 112, and the sealing assembly 105 also includes a sealing cover 113, wherein the first sealing pad 107 forms a first layer of sealing structure, and when the conveying pressure is relatively large, the airbag 108 and the second sealing pad 109 are provided. When the first sealing gasket 107 is deformed and squeezes the airbag 108, the airbag 108 fills the sealing groove 115. During this process, the airbag 108 squeezes the second sealing gasket 109, so that the second sealing gasket 109 abuts against the drive shaft 103, thereby forming a second layer of sealing structure, so as to avoid the leakage of the glass fiber impregnation agent when the conveying pressure is large. It can be understood that the above-mentioned scheme can be used to avoid the leakage of the glass fiber impregnation agent, and can also be used to improve the sealing effect of the first sealing gasket 107.

[0022] According to this specific embodiment, the drive shaft 103 is rotatably mounted on the pump body 101, the stator 102 is mounted inside the pump body 101, the rotating assembly 104 is arranged on the drive shaft 103, the pump body 101 is provided with a feed port and a discharge port, the glass fiber impregnation agent enters the pump body 101 through the feed port, the stator 102 is made of elastic material, and a Teflon coating is provided on the inner side thereof, which can prevent the stator 102 from being worn, and a coupling (not shown in the figure) is provided at one end of the drive shaft 103 located outside the pump body 101, through which the drive shaft 103 can be connected to the output end of the rotating motor, and the drive motor drives the drive shaft 103 to rotate, thereby causing the drive shaft 103 to drive the rotating assembly 104 to rotate, and the rotating assembly 104 conveys the glass fiber impregnation agent and discharges the glass fiber impregnation agent from the discharge port on the pump body 101.

[0023] The end cover 106 is fixedly connected to the pump body 101, and is rotatably connected to the drive shaft 103, and is sleeved on the drive shaft 103. The first sealing gasket 107 is connected to the end cover 106, abuts against the drive shaft 103, and is arranged on the end cover 106. The airbag 108 is connected to the first sealing gasket 107 and is located on one side of the first sealing gasket 107. The second sealing gasket 109 is connected to the end cover 106 and is located on the side of the end cover 106 close to the airbag 108. The drive shaft 103 has a sealing groove 115, which is arranged on the drive shaft 103 and is located on the side of the drive shaft 103 close to the first sealing pad 107; the first sealing pad 107, the airbag 108 and the second sealing pad 109 are all annular, and a cavity is formed between the first sealing pad 107 and the airbag 108, and gas is stored in the cavity. The lower end of the first sealing pad 107 is located inside the sealing groove 115; the first sealing pad 107 is abutted against the drive shaft 103 to seal the drive shaft 103. 03 and the gap between the end cover 106 to prevent leakage of the glass fiber sizing agent. When the conveying pressure is relatively high, the first sealing pad 107 is squeezed and deformed by the glass fiber sizing agent, so that the first sealing pad 107 squeezes the airbag 108, and the airbag 108 is deformed and fills the sealing groove 115, thereby sealing the sealing groove 115 to prevent leakage of the glass fiber sizing agent when the conveying pressure is relatively high; at the same time, the second sealing pad 115 is squeezed in the process of the airbag 108 filling the sealing groove 115 09, so that the second sealing pad 109 abuts against the drive shaft 103, thereby forming a second layer of sealing. When the delivery pressure is reduced, the first sealing pad 107 and the airbag 108 are reset. At this time, the second sealing pad 109 is also reset under the action of its own elastic force, so that the second sealing pad 109 stops contacting the drive shaft 103, avoiding wear of the second sealing pad 109, thereby improving the sealing effect between the drive shaft 103 and the end cover 106, and avoiding the leakage of the glass fiber impregnation agent when the delivery pressure is high.

[0024] Secondly, the cushion body 110 is connected to the end cover 106 and the airbag 108 , and is disposed on the end cover 106 ; the sealing ring 111 is connected to the cushion body 110 , abuts against the drive shaft 103 , and is sleeved on the drive shaft 103 .

[0025] Meanwhile, the spring sheet 112 is connected to the end cover 106 and to the cushion body 110 , and is located on a side of the cushion body 110 away from the airbag 108 .

[0026] The spring sheet 112 is elastic, and a plurality of the spring sheets 112 are arranged, and the plurality of spring sheets 112 are evenly distributed on the pad body 110. The pad body 110 and the sealing ring 111 are integrally formed, and the contact area between the first sealing gasket 107 and the drive shaft 103 is increased by the sealing ring 111, thereby improving the sealing effect of the first sealing gasket 107; at the same time, the spring sheet 112 enables the lower end of the first sealing gasket 107 to tightly abut against the drive shaft 103, that is, the sealing ring 111 tightly abuts against the drive shaft 103, thereby further improving the sealing effect of the first sealing gasket 107.

[0027] In addition, the sealing cover 113 is fixedly connected to the end cover 106 and is located on one side of the end cover 106; a filler 114 is filled between the sealing cover 113 and the end cover 106; the filler 114 further improves the sealing effect between the drive shaft 103 and the end cover 106 to avoid leakage of the glass fiber impregnation agent.

[0028] When the single-screw conveying device of the glass fiber impregnation agent of the present embodiment is used, the elasticity of the spring sheet 112 allows the lower end of the first sealing pad 107 to tightly abut against the drive shaft 103, thereby forming a first layer of sealing structure. When the conveying pressure is relatively large, the first sealing pad 107 is deformed and squeezes the airbag 108, so that the airbag 108 fills the sealing groove 115. During the deformation of the first sealing pad 107, the lower end thereof is still abutted against the drive shaft 103 by the action of the spring sheet 112. During the process of the airbag 108 filling the sealing groove 115, the second sealing pad 109 is squeezed, so that the second sealing pad 109 abuts against the drive shaft 103, thereby forming a second layer of sealing structure. At this time, under the sealing of the first sealing pad 107, the airbag 108 and the second sealing pad 109, leakage of the glass fiber impregnation agent is avoided, thereby achieving the purpose of improving the sealing effect.

[0029] Second embodiment:

[0030] Based on the first embodiment, please refer to Figure 4 , Figure 4 2 is a schematic diagram of the structure of the rotating assembly of the second embodiment. The rotating assembly 104 of this embodiment includes a universal joint 201 , an intermediate shaft 202 and a rotor 203 .

[0031] According to this specific embodiment, the universal joint 201 is connected to the drive shaft 103 and is located at one end of the drive shaft 103; the intermediate shaft 202 is connected to the universal joint 201 and is arranged on the universal joint 201; the rotor 203 is connected to the intermediate shaft 202 and is located at one end of the intermediate shaft 202; the rotation of the drive shaft 103 drives the universal joint 201, the intermediate shaft 202 and the rotor 203 to rotate, and the rotor 203 rotates in the stator 102. Since the lead of the stator 102 is twice the pitch of the rotor 203, a series of closed cavities with a phase angle of 180° are formed, which continuously move from the feed port of the pump body 101 to the discharge port as the rotor 203 rotates, thereby achieving the purpose of conveying the glass fiber impregnating agent.

[0032] What is disclosed above is only one or more preferred embodiments of the present application, and cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of implementing the above embodiments and equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. A single screw conveying device for glass fiber sizing agent, comprising a pump body, a stator, a drive shaft and a rotating assembly, wherein the drive shaft is rotatably mounted on the pump body, the stator is mounted inside the pump body, and the rotating assembly is arranged on the drive shaft, characterized in that: Also included is a sealing assembly; The sealing assembly includes an end cover, a first sealing gasket, an airbag and a second sealing gasket. The end cover is fixedly connected to the pump body and rotatably connected to the drive shaft and is sleeved on the drive shaft. The first sealing gasket is connected to the end cover and abuts against the drive shaft and is arranged on the end cover. The airbag is connected to the first sealing gasket and is located on one side of the first sealing gasket. The second sealing gasket is connected to the end cover and is located on a side of the end cover close to the airbag. The drive shaft has a sealing groove, which is arranged on the drive shaft and is located on a side of the drive shaft close to the first sealing gasket.

2. The single screw conveying device for glass fiber sizing according to claim 1, characterized in that: The first sealing gasket includes a gasket body and a sealing ring. The gasket body is connected to the end cover and the airbag and is arranged on the end cover. The sealing ring is connected to the gasket body and abuts against the drive shaft and is sleeved on the drive shaft.

3. The single screw conveying device for glass fiber sizing according to claim 2, characterized in that: The first sealing pad also includes a spring sheet, which is connected to the end cover and the pad body and is located on a side of the pad body away from the airbag.

4. The single screw conveying device for glass fiber sizing according to claim 1, characterized in that: The sealing assembly also includes a sealing cover, which is fixedly connected to the end cover and located on one side of the end cover; a filler is filled between the sealing cover and the end cover.

5. The single screw conveying device for glass fiber sizing according to claim 1, characterized in that: The rotating assembly includes a universal joint, an intermediate shaft and a rotor, wherein the universal joint is connected to the drive shaft and is located at one end of the drive shaft; the intermediate shaft is connected to the universal joint and is arranged on the universal joint; the rotor is connected to the intermediate shaft and is located at one end of the intermediate shaft.

Images