Extrusion head and silicone sealant extrusion device using same

Abstract

The silicone sealant extrusion device comprises an extrusion head body, a channel penetrating through the front end and the rear end of the extrusion head body is arranged in the extrusion head body, a deformation groove is formed in the side wall of the front end of the extrusion head body, the deformation groove penetrates through the inner side, the outer side and the front end of the extrusion head body, and the inner side and the outer side of the deformation groove are communicated with the channel. The deformation groove extends in the length direction of the extrusion head body. The deformation groove is formed in the extrusion end of the extrusion head, so that even if the problem of colloid solidification and blockage occurs, the extrusion end is prone to deformation under the action of extrusion pressure, the blockage is prone to loosening, and the blockage can be easily loosened by means of the extrusion pressure.

Description

Technical Field

[0001] The utility model relates to the technical field of sealant extrusion heads, in particular to an extrusion head and a silicone sealant extrusion device using the extrusion head. Background Art

[0002] Sealant refers to a sealing material that deforms with the shape of the sealing surface, is not easy to flow, and has a certain degree of adhesion. It is an adhesive used to fill the gaps in the structure to achieve a sealing effect. It has the functions of preventing leakage, waterproofing, anti-vibration, sound insulation, and heat insulation.

[0003] When applying the sealant, a sealant extrusion device is used. An extrusion head is provided at the extrusion end of the sealant extrusion device, and the sealant is extruded through the extrusion head, such as a sealant extrusion nozzle disclosed in patent authorization announcement number CN 219560255 U.

[0004] Since the diameter of the glue outlet of the extruder is relatively small, the glue in the extruder will solidify and clog the extruder after the equipment is not used for a period of time. Moreover, due to the small diameter, it is difficult to operate at the extrusion end to remove the solidified glue. Utility Model Content

[0005] In view of the problems pointed out in the background technology, the present invention proposes an extrusion head and a silicone sealant extrusion device using the extrusion head to solve the above technical problems.

[0006] The technical solution of the present utility model is achieved as follows:

[0007] An extrusion head includes an extrusion head body, wherein a channel is provided in the extrusion head body and passes through its front and rear ends. A deformation groove is provided on the side wall of the front end of the extrusion head body. The deformation groove passes through the inner and outer sides and the front end of the extrusion head body, and extends along the length direction of the extrusion head body.

[0008] The utility model is further configured such that the deformation groove is provided with one.

[0009] The present invention is further configured such that a plurality of deformation grooves are provided, and the plurality of deformation grooves are arranged at intervals in the circumferential direction of the extrusion head body.

[0010] The present invention is further configured such that the width of the deformation groove gradually decreases from front to back.

[0011] The utility model is further configured such that the extruder head body includes three sections from front to back, the three sections from front to back being respectively a first section, a second section and a third section. The first section is a cylindrical structure, the deformation groove is provided on the first section, and a restraining sleeve is threadedly connected to the first section.

[0012] The utility model is further configured such that the inner side wall of the constraint sleeve includes a deformation section and a threaded section arranged from front to back, wherein the inner side wall of the constraint sleeve at the threaded section is provided with an internal thread threadedly connected to the first section body, wherein the inner side wall of the constraint sleeve at the deformation section is spaced apart from the first section body and the spacing gradually decreases from front to back.

[0013] A silicone sealant extrusion device comprises an extrusion barrel, a piston is connected to the inside of the extrusion barrel, and an extrusion rod for driving the piston to move. The extrusion end of the extrusion barrel is connected to the extrusion head.

[0014] By adopting the above technical solution, the beneficial effects of the utility model are:

[0015] (1) A deformation groove is provided at the extrusion end of the extrusion head. In this way, even if the problem of colloid solidification and blockage occurs, the extrusion end is easily deformed under the action of the extrusion pressure, making the blockage easy to loosen, and the blockage can be easily loosened by relying on the extrusion pressure.

[0016] (2) When blockage occurs, the blockage can be cleared through the deformation groove on the side of the extruder head, which can easily clean the solidified blocked glue out of the extruder head.

[0017] (3) Due to the setting of the deformation groove, the extrusion end of the extrusion head will expand and deform under pressure, which will loosen the blockage. The setting of the constraint sleeve can limit the expansion deformation and adjust the size of the expansion deformation. The further the constraint sleeve moves backward, the stronger the ability of the extrusion head to expand and deform. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0019] Figure 1 This is a schematic diagram of the structure of the utility model Figure 1 .

[0020] Figure 2 For this utility model Figure 1 Enlarged view of part A in .

[0021] Figure 3 This is a schematic diagram of the structure of the utility model Figure 2 .

[0022] Figure 4 For this utility model Figure 3 Enlarged view of part B in .

[0023] Figure 5 This is a schematic structural diagram of the silicone sealant extrusion device of the present invention. DETAILED DESCRIPTION

[0024] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0025] Reference as follows Figure 1-4 The utility model is described as follows:

[0026] An extrusion head includes an extrusion head body 1, in which a channel is provided running through the front and rear ends thereof. The extrusion head body 1 includes three sections from front to back, and the three sections from front to back are respectively a first section body 11, a second section body 12, and a third section body 13. The first section body 11 is a cylindrical structure, the second section body 12 is a conical structure with a small front end and a large rear end, and the third section body 13 is a cylindrical structure. The outer diameter of the first section body 11 is equal to the outer diameter of the front end of the second section body 12, and the outer diameter of the third section body 13 is equal to the outer diameter of the rear end of the second section body 12.

[0027] The sidewalls of the first body section 11 are provided with deformation grooves 3, which extend through the inner and outer sides and the front end of the extruder body 1 and extend along the length of the extruder body 1. By adopting this technical solution, when the passage is blocked, the first body section 11 will expand and deform due to the deformation grooves 3 under the action of extrusion pressure, thus loosening the blockage and allowing the extrusion pressure to flush out the solidified adhesive.

[0028] The shape structure of the deformation groove 3 can be the following two implementation structures:

[0029] Implementation structure 1: The deformation groove 3 is a slit-like structure. When the channel is unobstructed, there is basically no glue flowing out of the deformation groove 3 with a slit-like structure, which is no different from applying sealant with a conventional ordinary extrusion head.

[0030] Implementation Structure 2: The width of the deformation groove 3 gradually decreases from front to back. When the channel is unobstructed, the sealant will also flow out of the deformation groove 3, thus increasing the adhesive application area. With this structure, a tool can be used on the side of the first section 11 to enter the channel through the deformation groove 3 to clear the solidified sealant blockage.

[0031] The number structure of the deformation grooves 3 can be the following two implementation structures:

[0032] Implementation structure 1: There is one deformation groove 3. This structure is not very destructive to the extrusion head, and the ability of the extrusion head to expand and deform is also relatively poor.

[0033] Implementation structure 2: multiple deformation grooves 3 are provided, and multiple deformation grooves 3 are arranged at intervals in the circumferential direction of the extrusion head body 1. This structure is more destructive to the extrusion head, and the extrusion head has a stronger ability to expand and deform accordingly.

[0034] To constrain and adjust the expansion deformation of the first body section 11, a restraining sleeve 4 is threadedly connected to the first body section 11. The restraining sleeve 4 is annular, with internal threads on its inner sidewall and external threads on its outer sidewall. The inner sidewall of the restraining sleeve 4 includes a deformation section 41 and a threaded section 42, arranged from front to back. The inner sidewall of the restraining sleeve 4 at the threaded section 42 is provided with internal threads that are threadedly connected to the first body section 11. The inner sidewall of the restraining sleeve 4 at the deformation section 41 is spaced apart from the first body section 11, and the spacing gradually decreases from front to back. By adopting this technical solution, the position of the restraining sleeve 4 can be adjusted by moving it back and forth on the first body section 11. The longer the front end of the first body section 11 extends beyond the restraining sleeve 4, the greater the ability of the first body section 11 to expand and deform. The restraining sleeve 4 can be used as needed.

[0035] A silicone sealant extrusion device includes an extrusion barrel 5, a piston 6 is connected to the extrusion barrel 5, and an extrusion rod 7 for driving the piston 6 to move. The extrusion end of the extrusion barrel 5 is connected to the extrusion head.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An extrusion head, comprising an extrusion head body, wherein the extrusion head body is provided with a channel running through the front and rear ends thereof, wherein: A deformation groove is arranged on the side wall of the front end of the extruder head body, the deformation groove runs through the inner and outer sides and the front end of the extruder head body, and the deformation groove extends along the length direction of the extruder head body.

2. An extrusion head according to claim 1, characterized in that: The deformation groove is provided with one.

3. An extrusion head according to claim 1, characterized in that: There are a plurality of deformation grooves, which are arranged at intervals in the circumferential direction of the extruder head body.

4. An extrusion head according to any one of claims 1 to 3, characterized in that: The width of the deformation groove gradually decreases from front to back.

5. An extrusion head according to claim 4, characterized in that: The extruder head body comprises three sections from front to back, which are respectively the first section body, the second section body and the third section body. The first section body is a columnar structure, the deformation groove is arranged on the first section body, and a restraint sleeve is threadedly connected to the first section body.

6. An extrusion head according to claim 5, characterized in that: The inner side wall of the constraint sleeve includes a deformation section and a threaded section arranged from front to back, wherein the inner side wall of the constraint sleeve at the threaded section is provided with an internal thread threadedly connected to the first section body, wherein the inner side wall of the constraint sleeve at the deformation section is spaced apart from the first section body and the spacing gradually decreases from front to back.

7. A silicone sealant extrusion device, comprising an extrusion barrel, a piston connected to the extrusion barrel, and an extrusion rod for driving the piston to move, characterized in that: The extrusion end of the extrusion barrel is connected to the extrusion head as described in claim 6.

Images