A cotton filling gun for glass fiber expansion

Abstract

The present application relates to a cotton filling gun for glass fiber expansion, and relates to the technical field of glass fiber expansion equipment, which includes a seat body, a shell, and a cylinder fixed on the seat body. The seat body and the shell are fixed and sealed. A threading hole for threading glass fiber is provided on the seat body along the length direction of the seat body, and the cylinder is used to press the glass fiber tightly in the threading hole. One end of the seat body is located inside the shell and is chamfered. One end of the seat body is located at the shell and forms a high-pressure air outlet with the inner wall of the shell. The seat body is provided with a partition plate that is plugged and slidably matched with the shell. The partition plate divides the inner cavity of the shell into an air storage chamber and an air guide chamber along the conveying direction of the glass fiber. The partition plate is sealed with the inner wall of the shell. A plurality of ventilation holes are opened on the partition plate with the threading hole as the center circumference. The air source is connected to the shell near one end of the seat body and ventilates into the air storage chamber. The present application improves the expansion and dispersion effect of glass fiber by uniformly dispersing high-pressure gas.

Description

Technical Field

[0001] The present application relates to the technical field of glass fiber expansion equipment, and in particular to a cotton filling gun for glass fiber expansion. Background Art

[0002] Glass fiber is used as a car silencer material to fill the car silencer. Its silencer effect is closely related to the dispersion of glass fiber. After being expanded and dispersed, the glass fiber is filled in the car silencer to play a role in heat preservation and silence. Generally, the glass fiber is inserted into the cotton filling gun. A high-pressure air outlet is formed inside the cotton filling gun. The surface of the cotton filling gun is connected to high-pressure gas. The high-pressure gas passes through the high-pressure air outlet to expand and disperse the glass fiber, and drives the glass fiber to run along the muzzle direction of the cotton filling gun, continuously expanding and dispersing the glass fiber. After a certain amount of glass fiber is expanded, the cylinder at the tail of the cotton filling gun pushes the pressing piece to press the glass fiber, and the expanded glass fiber at the head of the cotton filling gun is cut off by the cutting equipment.

[0003] However, during the use of the existing glass fiber filling gun, the glass fibers are often dispersed unevenly, which affects the heat preservation and noise reduction effects after the glass fibers are filled into the automobile muffler. Summary of the invention

[0004] In order to improve the expansion and dispersion effect on glass fibers, the present application provides a cotton filling gun for glass fiber expansion.

[0005] The present application provides a glass fiber expansion filling gun that adopts the following technical solution:

[0006] A cotton filling gun for glass fiber expansion comprises a seat body, a shell and a cylinder fixed on the seat body, the seat body and the shell are fixed and sealed, the seat body is provided with a threading hole for threading glass fiber along the length direction of the seat body, the cylinder is used to press the glass fiber tightly in the threading hole, one end of the seat body is located inside the shell and is chamfered, the seat body is located at one end of the shell and forms a high-pressure air outlet with the inner wall of the shell, the seat body is provided with a partition plate that is plugged into and slidably matched with the shell, the partition plate divides the inner cavity of the shell into an air storage chamber and an air guide chamber along the conveying direction of the glass fiber, the partition plate is sealed with the inner wall of the shell, a plurality of ventilation holes are opened on the partition plate with the threading hole as the center circumference, the air source is connected to the end of the shell close to the seat body and ventilates into the air storage chamber.

[0007] By adopting the above technical solution, the gas source delivers the gas into the gas storage chamber separated by the partition plate, the gas flows evenly into the gas guide chamber through the air vents on the partition plate, and the glass fiber is expanded through the high-pressure air outlet formed between the seat body and the inner wall of the shell, thereby ensuring the dispersion of the glass fiber; since the partition plate is in contact with the inner wall of the shell, the stability of the entire device is guaranteed, thereby ensuring the stability of the glass fiber expansion.

[0008] Preferably, the axial direction of the ventilation hole is arranged parallel to the axial direction of the threading hole.

[0009] By adopting the above technical solution, the vent hole is parallel to the axis of the threading hole. When the high-pressure gas expands the glass fiber, it applies a thrust along the axis of the threading hole to the glass fiber, so that the glass fiber is transported forward straightly, ensuring the dispersion of the glass fiber.

[0010] Preferably, a first groove is formed on the circumferential surface of the partition plate, and the first groove is used for installing a sealing ring that seals the gap between the partition plate and the inner wall of the shell.

[0011] By adopting the above technical solution, the sealing ring is elastically sleeved in the first groove, which facilitates the positioning of the sealing ring and plays a role in sealing the gap between the partition plate and the shell.

[0012] Preferably, a positioning ring which is positioned and matched with the shell is provided on the seat body, and the positioning ring is sleeved inside the shell.

[0013] By adopting the above technical solution, the positioning ring plays a role in positioning the seat body and the shell, which facilitates the installation of the seat body and the shell.

[0014] Preferably, a second groove is formed on the circumferential surface of the positioning ring, and the second groove is used for installing a sealing ring that seals the gap between the positioning ring and the inner wall of the shell.

[0015] By adopting the above technical solution, the sealing ring is elastically sleeved in the second groove, which is convenient for positioning the sealing ring and plays a role in sealing the gap between the positioning ring and the housing.

[0016] Preferably, a connecting seat is integrally formed on the seat body, and the connecting seat is fixed to and connected with the air source.

[0017] By adopting the above technical solution, the connecting seat plays a role of fixed connection with the gas source, which makes it easy to install the gas source on the connecting seat.

[0018] Preferably, an elastic pressure rod is detachably fixed on the piston rod of the cylinder.

[0019] By adopting the above technical solution, the elastic pressure rod presses the glass fiber to protect the glass fiber, thereby effectively reducing damage to the glass fiber.

[0020] Preferably, the pressure rod is a copper rod.

[0021] By adopting the above technical solution, the material of the copper rod is relatively soft, and the copper rod presses the glass fiber, thereby reducing damage to the glass fiber and protecting the glass fiber.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] The gas flows into the air guide chamber evenly through the vent holes on the partition plate, and expands the glass fiber through the high-pressure gas outlet, thereby ensuring the dispersion of the glass fiber; since the partition plate contacts the inner wall of the shell, the stability of the entire device is guaranteed, and the stability of the glass fiber expansion is ensured;

[0024] The vent hole is parallel to the axis of the threading hole. When the high-pressure gas expands the glass fiber, it applies a thrust along the axis of the threading hole to the glass fiber, so that the glass fiber is transported forward straightly, ensuring the dispersion of the glass fiber.

[0025] The sealing ring is elastically sleeved in the first groove, which is convenient for positioning the sealing ring and plays a role in sealing the gap between the partition plate and the shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is an exploded schematic diagram of an embodiment of the present application;

[0027] Figure 2 It is a schematic diagram of the structure of an embodiment of the present application.

[0028] Description of reference numerals:

[0029] 1. seat body; 11. threading hole; 21. inner cavity; 22. connecting seat; 2. shell; 3. partition plate; 31. vent hole; 32. first groove; 4. cylinder; 5. pressure rod; 6. positioning ring; 61. second groove. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1 This application is described in further detail.

[0031] The present application discloses a cotton filling gun for glass fiber expansion. Figure 1 and Figure 2As shown, the cotton filling gun for glass fiber expansion includes a seat body 1, a shell 2, and a cylinder 4 fixed on the seat body 1. One end of the seat body 1 is inserted into the shell 2, and the seat body 1 and the shell 2 are fixed and sealed. A threading hole 11 for passing glass fibers is formed on the seat body 1 along the length direction of the seat body 1, and an inner cavity 21 is formed on the shell 2. The glass fibers pass through the threading hole 11 and the inner cavity 21. One end of the seat body 1 located in the shell 2 is arranged with a uniform gap from the inner wall of the shell 2 to form a high-pressure air outlet. A partition plate 3 perpendicular to the threading hole 11 is provided on the seat body 1, and a vent hole 31 centered on the threading hole 11 is opened on the circumference of the partition plate 3. The gas source is connected to the shell 2, and the gas sent by the gas source enters the high-pressure air outlet through the vent hole 31 on the partition plate 3 to expand the glass fiber.

[0032] like Figure 1 As shown, in this embodiment, the seat body 1 is configured as a square column-shaped mounting seat and a cylindrical wire tube perpendicular to one end of the mounting seat and coaxially integrated with the mounting seat, the end of the wire tube away from the mounting seat is chamfered, and the threading hole 11 coaxially penetrates the mounting seat and the wire tube, and the chamfered edge line of the wire tube is close to the end of the threading hole 11.

[0033] like Figure 1 As shown, one end of the mounting seat is integrally formed with a positioning ring 6 coaxially arranged with the wire tube, the inner wall of the positioning ring 6 is integrally fitted with the outer wall of the wire tube, the positioning ring 6 is sleeved in the shell 2 and fits with the inner wall of the shell 2, the positioning ring 6 facilitates the installation of the seat body 1 and the shell 2, and improves the stability between the seat body 1 and the shell 2.

[0034] In order to facilitate the sealing between the seat body 1 and the housing 2, a second groove 61 coaxially arranged with the positioning ring is provided on the circumferential surface of the positioning ring 6, so that a sealing ring made of rubber material can be placed in the second groove 61. The sealing ring is used to seal the gap between the positioning ring 6 and the housing 2 to ensure the sealing between the positioning ring 6 and the housing 2. Since the sealing ring is located in the second groove 61, the sealing installation of the seat body 1 and the housing 2 is convenient.

[0035] like Figure 1 As shown, the partition plate 3 is annular and coaxially arranged with the wire tube, and the partition plate 3 is sleeved in the shell 2 and fits with the inner wall of the shell 2. In order to ensure the uniform evacuation of gas by the vent holes 31 and the structural stability of the partition plate 3, the number of the vent holes 31 is set to 8-16 pressure rods. In this embodiment, the number of the vent holes 31 is twelve.

[0036] In order to ensure the expansion quality of the glass fiber, the axial direction of the vent hole 31 is parallel to the axial direction of the threading hole 11. While the high-pressure gas expands the glass fiber, it applies a thrust along the axial direction of the threading hole 11 to the glass fiber, so that the glass fiber is transported forward straightly, ensuring the dispersion of the glass fiber.

[0037] In order to further improve the puffing quality of the glass fiber, the partition plate 3 is sealed against the inner wall of the shell 2. Specifically, a first groove 32 is provided on the circumferential surface of the partition plate 3, so that a sealing ring made of rubber material can be placed in the first groove 32. The sealing ring is used to seal the gap between the partition plate 3 and the shell 2 to ensure the sealing between the partition plate 3 and the shell 2. Since the sealing ring is located in the first groove 32, the partition plate 3 and the shell 2 are easily installed in a sealed manner. Since the partition plate 3 is in contact with the inner wall of the shell 2, the stability of the entire device is guaranteed, and the stability of the puffing of the glass fiber is ensured.

[0038] like Figure 1 As shown, in this embodiment, the shell 2 is configured as a square column-shaped casing and an outlet pipe perpendicular to one end of the casing and coaxially integrated with the casing. After the seat body 1 and the shell 2 are installed, the partition plate 3 divides the inner cavity 21 into an air storage chamber and an air guide chamber. The gas source passes the gas into the air storage chamber, and the gas flows evenly into the air storage chamber through the vent 31, and expands the glass fiber at the high-pressure outlet formed by the chamfered surface of the wire tube and the inner wall of the shell 2, and allows the glass fiber to move forward in the outlet pipe. Specifically, a guide surface equidistant from the chamfered surface of the wire tube is formed at the connection between the inner casing of the shell 2 and the outlet pipe, and the gap between the guide surface and the chamfered surface pressurizes the gas to ensure the expansion of the glass fiber.

[0039] like Figure 1 As shown, the gas source is connected to one end of the shell 2 close to the seat body 1. Specifically, a connection seat 22 is integrally formed at one end of the shell 2 close to the seat body 1, and the gas source is fixedly installed on the connection seat 22. The connection seat 22 is provided with a through hole connected to the inner cavity 21 of the shell 2. The gas source is connected to the through hole on the connection seat 22, which is convenient for gas to be introduced into the shell 2. The connection seat 22 plays a role of fixed connection with the gas source pipeline, which is convenient for the gas source pipeline to be installed on the connection seat 22.

[0040] like Figure 1 As shown, the cylinder 4 is fixedly mounted on the mounting seat on the seat body 1 by bolts, and an elastic pressure rod 5 is detachably fixed on the piston rod of the cylinder 4. The elastic pressure rod 5 presses against the glass fiber to protect the glass fiber and effectively reduce the damage to the glass fiber.

[0041] In this embodiment, the pressure rod 5 is specifically configured as a copper rod. The copper rod is made of a relatively soft material, and the copper rod presses the glass fiber to reduce damage to the glass fiber and protect the glass fiber.

[0042] In this embodiment, the mounting seat on the seat body 1 is fixedly mounted on the sleeve on the housing 2 by means of bolts.

[0043] The implementation principle of a cotton filling gun for glass fiber expansion in the embodiment of the present application is as follows:

[0044] After the cotton filling gun is ventilated, the gas enters the gas storage chamber and evenly enters the air guide chamber through the vent hole 31 on the partition plate 3. After the end of the seat body 1 is pressurized, the glass fiber is expanded to improve the dispersion of the glass fiber and make the glass fiber evenly dispersed. At the same time, the peripheral surface of the partition plate 3 fits the inner wall of the shell 2, which ensures the stability of the cotton filling gun during operation and improves the service life of the cotton filling gun. The first groove 31 and the second groove 61 are set to ensure the sealing between the seat body 1 and the shell 2.

[0045] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A cotton filling gun for glass fiber expansion, characterized in that: The invention comprises a seat body (1), a shell (2) and a cylinder (4) fixed on the seat body (1); the seat body (1) and the shell (2) are fixed and sealed; a threading hole (11) for threading glass fibers is provided on the seat body (1) along the length direction of the seat body (1); the cylinder is used to press the glass fibers against the threading hole (11); one end of the seat body (1) is located inside the shell (2) and is chamfered; one end of the seat body (1) located inside the shell (2) forms a connection with the inner wall of the shell (2) A high-pressure air outlet, wherein the seat body (1) is provided with a partition plate (3) which is plugged into and slidably matched with the shell body (2), and the partition plate (3) divides the inner cavity (21) of the shell body (2) into an air storage chamber and an air guide chamber along the conveying direction of the glass fiber, and the partition plate (3) is sealed with the inner wall of the shell body (2), and a plurality of air holes (31) are opened on the partition plate (3) with the threading hole (11) as the center circumference, and the air source is connected to one end of the shell body (2) close to the seat body (1) and ventilates into the air storage chamber; One end of the seat body (1) located inside the shell (2) is arranged with a uniform gap from the inner wall of the shell (2) to form a high-pressure gas outlet; an air source is connected to the shell (2), and the gas sent out by the air source is passed into the gas storage chamber, and then enters the high-pressure gas outlet through the air vent (31) on the partition plate (3) to expand the glass fiber and allow the glass fiber to move forward in the outlet pipe.

2. A cotton filling gun for glass fiber expansion according to claim 1, characterized in that: The axial direction of the vent hole (31) is arranged parallel to the axial direction of the threading hole (11).

3. A cotton filling gun for glass fiber expansion according to claim 2, characterized in that: A first groove (32) is provided on the circumferential surface of the partition plate (3), and the first groove (32) is used to install a sealing ring that seals the gap between the partition plate (3) and the inner wall of the shell (2).

4. A cotton filling gun for glass fiber expansion according to claim 1 or 3, characterized in that: The seat body (1) is provided with a positioning ring (6) which is positioned and matched with the shell (2); the positioning ring (6) is sleeved inside the shell (2).

5. A cotton filling gun for glass fiber expansion according to claim 4, characterized in that: A second groove (61) is provided on the circumferential surface of the positioning ring (6), and the second groove (61) is used to install a sealing ring that seals the gap between the positioning ring (6) and the inner wall of the housing (2).

6. The glass fiber expansion filling gun according to claim 1, characterized in that: A connecting seat (22) is integrally formed on the seat body (1), and the connecting seat (22) is fixed to and connected with the gas source.

7. The glass fiber expansion filling gun according to claim 1, characterized in that: An elastic pressure rod (5) is detachably fixed on the piston rod of the cylinder (4).

8. The glass fiber expansion filling gun according to claim 7, characterized in that: The pressure rod (5) is a copper rod.

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