Cross section variable type tire flow guide rubber opening piece and gluing mechanism

Abstract

The invention discloses a section-variable tire flow guide rubber opening piece and a rubber coating mechanism, and belongs to the technical field of tire production, the section-variable tire flow guide rubber opening piece comprises a rubber outlet flow guide sleeve and a section-variable rubber outlet nozzle opening piece detachably mounted at an outlet of the rubber outlet flow guide sleeve; the section-variable glue outlet nozzle mouth piece comprises a plurality of glue outlet nozzles which are arrayed into a whole in the circumferential direction, and inner cavities of all the glue outlet nozzles are communicated with one another; and the cross section shapes of the glue outlet nozzles are different, and each glue outlet nozzle can be connected with the glue outlet flow guide sleeve so as to convert different glue outlet mouths. The section shape of each rubber outlet nozzle in the section-variable type tire flow guide rubber opening piece can be customized according to actual requirements, only the section-variable type rubber outlet nozzle piece needs to be detached and replaced when the opening shape of the rubber opening is changed, so that the section-variable type tire flow guide rubber opening piece is more convenient to use, in addition, the input amount of a rubber outlet flow guide sleeve can be greatly reduced, and the production cost is reduced. And the production cost is reduced to a certain extent.

Description

Technical Field

[0001] This invention relates to the field of tire manufacturing technology, specifically to a variable cross-section tire guide rubber nozzle and a rubber dispensing mechanism. Background Technology

[0002] During tire production, sealant, grease, and other adhesives are often applied to tire valves, rim edges, or other sealing areas using a caulking gun to ensure tire airtightness and assembly reliability.

[0003] In existing technologies, the nozzle of a glue gun is usually a fixed cross-section structure. The shape (e.g., round, elliptical) and size of the nozzle need to be pre-designed according to the matching glue tube or coating requirements. When it is necessary to switch to a different nozzle shape (e.g., to adapt to different valve sizes), it is often necessary to replace the entire nozzle or the matching nozzle sleeve, which leads to the following problems:

[0004] 1. Poor versatility: The fixed cross-section flow guide nozzle can only be adapted to a single nozzle requirement. When replacing it, the entire flow guide assembly needs to be disassembled, which is cumbersome and inefficient.

[0005] 2. High cost: To meet the needs of different nozzles, it is necessary to stock various specifications of flow guide nozzles or flow guide sleeves, which increases warehousing and maintenance costs.

[0006] Secondly, the existing glue-applying guns still have the following problems:

[0007] 1. Inconvenient glue quantity monitoring: The glue tube of traditional glue guns is mostly made of opaque material, making it impossible to directly observe the amount of glue remaining inside. Operators need to estimate based on experience, which can easily lead to glue waste or coating interruption. Summary of the Invention

[0008] The first technical problem to be solved by the present invention is to provide a variable cross-section tire guide nozzle with fireproof and active fire extinguishing capabilities.

[0009] To achieve the above objectives, the present invention adopts the following technical solution:

[0010] A variable cross-section tire guide nozzle includes a tire outlet guide sleeve and a variable cross-section tire outlet nozzle that is detachably installed at the outlet of the tire outlet guide sleeve.

[0011] The variable cross-section dispensing nozzle assembly includes multiple dispensing nozzles arranged in a circumferential array, with the inner cavities of all dispensing nozzles interconnected. Each dispensing nozzle has a different cross-sectional shape, and each dispensing nozzle can be connected to a dispensing guide sleeve to switch between different dispensing shapes.

[0012] By adopting the above solution, the cross-sectional shape of each dispensing nozzle can be customized according to actual needs. When changing the dispensing nozzle shape, it is only necessary to remove and replace the variable cross-section dispensing nozzle part, making it more convenient to use. In addition, it can greatly reduce the amount of dispensing guide sleeve required, thereby reducing production costs to a certain extent.

[0013] In a preferred embodiment of a variable cross-section tire guide nozzle, each nozzle includes a nozzle portion and a connecting portion that is axially concentric with the nozzle portion; a guide tube that can be connected to the nozzle portion is installed at the outlet of the guide sleeve, and the guide tube extends straight into the corresponding nozzle portion after being connected to the connecting portion.

[0014] By adopting the above solution, in order to ensure the reasonable application of the variable cross-section dispensing nozzle, during installation, the guide tube can be connected to the nozzle part and then extended directly into the corresponding nozzle part. This can prevent the glue from flowing out from other nozzle parts or connecting parts.

[0015] In a preferred embodiment of a variable cross-section tire guide nozzle, there are three nozzles, and the nozzle openings of the three nozzles are circular, flat, and triangular, respectively.

[0016] By adopting the above scheme, in order to achieve the conversion between different dispensing cross-sections, the cross-sections are set to three commonly used shapes: circular, flat, and triangular, allowing for flexible selection of the dispensing shape for different application scenarios.

[0017] In a preferred embodiment of a variable cross-section tire guide nozzle, the outer surface of the nozzle opening portion is provided with multiple circumferentially arrayed anti-slip ridges; the outer surface of the guide sleeve is also provided with multiple circumferentially arrayed anti-slip ridges.

[0018] By adopting the above solution, in order to facilitate the installation of the variable cross-section dispensing nozzle and the dispensing guide sleeve, since both the variable cross-section dispensing nozzle and the dispensing guide sleeve are connected by threads, the anti-slip ridges can be set to enhance their friction, making it easy to rotate and install or disassemble them.

[0019] The second technical problem to be solved by the present invention is to provide a glue dispensing mechanism equipped with a variable cross-section tire guide glue nozzle, which has glue volume monitoring to improve operational flexibility and controllability.

[0020] A glue dispensing mechanism includes a glue gun holder, a glue tube detachably installed in the glue gun holder, a lead screw rotatably installed in the glue gun holder and pushing the glue tube to feed, a rotary handle fixedly installed at the right end of the lead screw, a main handle fixedly installed at the bottom of the glue gun holder, a side handle fixedly installed at the front of the glue gun holder, and a tire guide glue nozzle with the aforementioned variable cross-section detachably installed.

[0021] A belt is installed at the bottom of the glue gun holder along the axial direction of the glue tube via a tensioning mechanism. The right end of the glue gun holder is connected to a synchronous transmission mechanism that drives the belt to move via a lead screw. When the handle is turned to push the glue tube to dispense glue, the belt also moves accordingly.

[0022] The upper layer of the belt is engraved with capacity scale lines indicating the contents of the hose, and the surface of the side handle is engraved with indicator arrows indicating the capacity scale lines; when the hose is first installed in the glue gun holder, the "0 mark" of the capacity scale line is exactly aligned with the indicator arrow.

[0023] By adopting the above solution, the operator can directly observe the scale position on the belt to understand the amount of glue in the tube by engraving the capacity scale line on the belt, thereby judging the amount of glue remaining in the tube, avoiding coating interruption or waste due to insufficient glue, and improving the flexibility and controllability of the operation.

[0024] In a preferred embodiment of the glue dispensing mechanism, the tensioning mechanism includes a drive wheel rotatably mounted on the right end of the glue gun holder and a driven wheel rotatably mounted on the left end of the glue gun holder, with the belt wound between the drive wheel and the driven wheel; the tensioning mechanism also includes two sets of tensioning wheels rotatably mounted on the left end of the glue gun holder and close to the driven wheel, the two sets of tensioning wheels respectively abutting against the upper layer of the belt, and the vertical height of the two sets of tensioning wheels is lower than the height of the driven wheel; the front and rear rims of the driven wheel are also provided with side guards to prevent the belt from slipping off.

[0025] By adopting the above scheme, in order to achieve belt tension, the entire belt is pressed and tensioned by two sets of tensioning forces when it moves between the driving pulley and the driven pulley, thereby realizing that the belt moves synchronously with the lead screw.

[0026] In a preferred embodiment of a glue-applying mechanism, the synchronous transmission mechanism includes two sets of limiting seats concentrically mounted on a lead screw, a worm gear located between the two sets of limiting seats and concentrically mounted on the lead screw, and a worm gear concentrically connected to the driving wheel and meshing with the worm gear for transmission; wherein the limiting seats are connected to the lead screw via bearings, and the worm gear is connected to the lead screw via threads.

[0027] By adopting the above scheme, in order to achieve belt transmission, the lead screw can drive the worm wheel to rotate when it rotates. At this time, the worm wheel can only rotate under the limiting action of the limit seat. Through the transmission of the worm, the drive wheel is rotated, thereby completing the drive of the belt.

[0028] The beneficial effects of this invention are as follows:

[0029] 1. The cross-sectional shape of each dispensing nozzle in this solution can be customized according to actual needs. When changing the dispensing nozzle shape, it is only necessary to remove and replace the variable cross-section dispensing nozzle part, making it more convenient to use. In addition, it can greatly reduce the amount of dispensing guide sleeves required, thereby reducing production costs to a certain extent.

[0030] 2. In order to ensure the proper application of the variable cross-section dispensing nozzle, during installation, after connecting the guide tube to the nozzle part, it can be inserted directly into the corresponding nozzle part. This can prevent the glue from flowing out from other nozzle parts or connecting parts.

[0031] 3. In order to achieve the conversion between different dispensing cross-sections, the cross-sections are set to three commonly used shapes: circular, flat, and triangular, allowing for flexible selection of the dispensing shape for different application scenarios;

[0032] 4. This solution uses a capacity scale line engraved on the upper layer of the belt. Operators can directly observe the scale position on the belt to understand the amount of glue applied in the tube, thereby judging the amount of glue remaining in the tube. This avoids coating interruptions or waste due to insufficient glue, and improves the flexibility and controllability of the operation. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 A three-dimensional structural diagram of a variable cross-section tire guide nozzle;

[0035] Figure 2 for Figure 1 Three-dimensional structure of variable cross-section dispensing nozzle Figure 1 ;

[0036] Figure 3 for Figure 1 Three-dimensional structure of variable cross-section dispensing nozzle Figure 2 ;

[0037] Figure 4 for Figure 1 Three-dimensional structure of variable cross-section dispensing nozzle Figure 3 ;

[0038] Figure 5 for Figure 1 3D structural diagram of the center outlet adhesive guide sleeve;

[0039] Figure 6 A three-dimensional structural diagram of a glue dispensing mechanism equipped with a variable cross-section tire guide nozzle;

[0040] Figure 7 A front view of a glue dispensing mechanism equipped with a variable cross-section tire guide nozzle;

[0041] Figure 8 To hide Figure 6 Structure behind the glue gun holder Figure 1 ;

[0042] Figure 9 for Figure 8 A magnified view of a section at point A in the middle;

[0043] Figure 10 To hide Figure 6 Structure behind the glue gun holder Figure 2 ;

[0044] Figure 11 for Figure 8 A magnified view of a section at point B in the middle;

[0045] The markings in the diagram are: 1-Dispensing guide sleeve; 2-Variable cross-section dispensing nozzle; 3-Nozzle section; 4-Connecting part; 5-Guide connecting pipe; 6-Glue gun holder; 7-Glue hose; 8-Lead screw; 9-Turner; 10-Main grip; 11-Side grip; 12-Belt; 13-Capacity scale line; 14-Indicator arrow; 15-Drive wheel; 16-Driven wheel; 17-Tension wheel; 18-Limit seat; 19-Worm gear; 20-Worm. Detailed Implementation

[0046] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0047] like Figures 1 to 4 As shown, a variable cross-section tire guide nozzle component is provided, which is installed on a caulking gun and used for guiding the caulking agent. Specifically, it includes a caulking guide sleeve 1 and a variable cross-section caulking nozzle component 2 detachably installed at the outlet of the caulking guide sleeve 1. The variable cross-section caulking nozzle component 2 includes three circumferentially arrayed caulking nozzles, and the inner cavities of all caulking nozzles are interconnected. Each caulking nozzle has a different cross-sectional shape, and each caulking nozzle can be connected to the caulking guide sleeve 1 to change different caulking nozzle shapes. In this solution, the cross-sectional shape of each caulking nozzle can be customized according to actual needs. When changing the caulking nozzle shape, only the variable cross-section caulking nozzle component 2 needs to be removed and replaced, making it more convenient to use. In addition, it can greatly reduce the number of caulking guide sleeves 1 required, thus reducing production costs to a certain extent.

[0048] like Figures 2 to 5As shown, each dispensing nozzle includes a nozzle portion 3 and a connecting portion 4 that is axially concentric with the nozzle portion 3. A guide tube 5, which connects to the nozzle portion 3, is installed at the outlet of the dispensing guide sleeve 1. After connecting the guide tube 5 to the connecting portion 4, it extends directly into the corresponding nozzle portion 3. To ensure the proper application of the variable cross-section dispensing nozzle component 2, during installation, the guide tube 5 can be directly inserted into the corresponding nozzle portion 3 after connecting it, thus preventing glue from flowing out from other nozzle portions 3 or connecting portions 4.

[0049] like Figures 2 to 4 As shown, there are three dispensing nozzles. The nozzle openings (3) of the three nozzles have shapes of round, flat, and triangular, respectively, corresponding to... Figure 2 , Figure 3 and Figure 4 To enable conversion between different dispensing cross-sections, three commonly used shapes are set: circular, flat, and triangular, allowing for flexible selection of the dispensing shape for different application scenarios.

[0050] Continue as Figures 2 to 5 As shown, the outer surface of the nozzle portion 3 is provided with multiple circumferentially arrayed anti-slip ridges; the outer surface of the dispensing guide sleeve 1 is also provided with multiple circumferentially arrayed anti-slip ridges. To facilitate the installation of the variable cross-section dispensing nozzle 2 and the dispensing guide sleeve 1, since both the variable cross-section dispensing nozzle 2 and the dispensing guide sleeve 1 are connected by threads, the anti-slip ridges enhance their friction, making it easier to rotate and install or disassemble them.

[0051] like Figures 6 to 11As shown, a glue-applying mechanism is provided, which is used to apply sealant, grease, or other adhesives to tire valves, wheel hub edges, or other sealing parts to ensure tire airtightness and assembly reliability. Specifically, it includes a glue gun holder 6, a glue tube 7 detachably installed within the glue gun holder 6, a lead screw 8 rotatably installed within the glue gun holder 6 and pushing the glue tube 7 forward, a handle 9 fixedly installed at the right end of the lead screw 8, a main handle 10 fixedly installed at the bottom of the glue gun holder 6, a side handle 11 fixedly installed at the front of the glue gun holder 6, and a variable-section tire guide nozzle component detachably installed. A belt 12, axially aligned with the glue tube 7, is installed at the bottom of the glue gun holder 6 via a tensioning mechanism. The right end of the glue gun holder 6 is connected to a synchronous transmission mechanism via a lead screw 8, which drives the belt 12 to move. When the handle 9 is turned to push the glue tube 7 out of the glue, the belt 12 moves accordingly. The upper layer of the belt 12 is engraved with a capacity scale 13 indicating the contents of the glue tube 7, and the surface of the side handle 11 is engraved with an indicator arrow 14 indicating the capacity scale 13. When the glue tube 7 is first installed in the glue gun holder 6, the "0 mark" of the capacity scale 13 is aligned with the indicator arrow 14. The capacity of the glue tube 7 is 300ml, and after the glue tube 7 is used up, the belt 12 travels 200mm, thus dividing the 300ml capacity into equal parts over the 200mm length. This solution, by engraving the capacity scale 13 on the upper layer of the belt 12, allows the operator to directly observe the scale position on the belt 12 to understand the amount of glue dispensed in the glue tube 7, thereby judging the remaining glue in the glue tube 7, avoiding coating interruptions or waste due to insufficient glue, and improving operational flexibility and controllability.

[0052] like Figures 8 to 9 As shown, the tensioning mechanism includes a drive wheel 15 rotatably mounted on the right end of the glue gun holder 6 and a driven wheel 16 rotatably mounted on the left end of the glue gun holder 6. The belt 12 is wound between the drive wheel 15 and the driven wheel 16. The tensioning mechanism also includes two sets of tensioning wheels 17 rotatably mounted on the left end of the glue gun holder 6 and close to the driven wheel 16. The two sets of tensioning wheels 17 respectively abut against the upper layer of the belt 12, and the vertical height of the two sets of tensioning wheels 17 is lower than the height of the driven wheel 16. The front and rear rims of the driven wheel 16 are also provided with side stops to prevent the belt 12 from slipping off. In order to achieve tensioning of the belt 12, when the entire belt 12 moves between the drive wheel 15 and the driven wheel 16, it is pressed down and tensioned by two sets of tensioning forces, thereby realizing that the belt 12 moves synchronously with the lead screw 8.

[0053] like Figures 10 to 11As shown, the synchronous transmission mechanism includes two sets of limiting seats 18 concentrically mounted on the lead screw 8, a worm gear 19 located between the two sets of limiting seats 18 and concentrically mounted on the lead screw 8, and a worm 20 concentrically connected to the driving wheel 15 and meshing with the worm gear 19 for transmission. The limiting seats 18 are connected to the lead screw 8 via bearings, and the worm gear 19 is connected to the lead screw 8 via threads. To achieve transmission of the belt 12, the lead screw 8 drives the worm gear 19 to rotate when rotating. At this time, the worm gear 19 can only rotate under the limiting action of the limiting seats 18, and the driving wheel 15 rotates under the transmission of the worm gear 20, thus completing the drive of the belt 12.

[0054] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A variable cross-section tire guide nozzle, comprising a tire outlet guide sleeve and a variable cross-section tire outlet nozzle detachably installed at the outlet of the tire outlet guide sleeve; Its features are: The variable cross-section dispensing nozzle assembly includes multiple dispensing nozzles arranged in a circumferential array, and the inner cavities of all dispensing nozzles are interconnected; each dispensing nozzle has a different cross-sectional shape, and each dispensing nozzle can be connected to a dispensing guide sleeve to switch between different dispensing shapes.

2. The variable cross-section tire guide nozzle according to claim 1, characterized in that: Each nozzle includes an opening portion and an axially concentric connecting portion.

3. The variable cross-section tire guide nozzle according to claim 2, characterized in that: The outlet of the dispensing guide sleeve is equipped with a guide tube that can be connected to the nozzle part. After the guide tube is connected to the connecting part, it extends straight into the corresponding nozzle part.

4. The variable cross-section tire guide nozzle according to claim 3, characterized in that: The number of dispensing nozzles is three, and the nozzle openings of the three nozzles are respectively circular, flat, and triangular.

5. The variable cross-section tire guide nozzle according to claim 4, characterized in that: The outer surface of the nozzle opening is provided with multiple anti-slip ridges arranged in a circumferential array.

6. The variable cross-section tire guide nozzle according to claim 5, characterized in that: The outer surface of the dispensing guide sleeve is provided with multiple anti-slip ridges arranged in a circumferential array.

7. A glue dispensing mechanism, comprising a glue gun holder, a glue tube detachably installed in the glue gun holder, a lead screw rotatably installed in the glue gun holder and pushing the glue tube to feed, a rotary handle fixedly installed at the right end of the lead screw, a main handle fixedly installed at the bottom of the glue gun holder, a side handle fixedly installed at the front side of the glue gun holder, and a variable cross-section tire guide glue outlet component detachably installed according to any one of claims 1-6. Its features are: A belt is installed at the bottom of the glue gun holder along the axial direction of the glue tube via a tensioning mechanism. The right end of the glue gun holder is connected to a synchronous transmission mechanism that drives the belt to move via a lead screw. When the handle is turned to push the glue tube to dispense glue, the belt also moves accordingly. The upper layer of the belt is engraved with capacity scale lines indicating the contents of the hose, and the surface of the side handle is engraved with indicator arrows indicating the capacity scale lines; when the hose is first installed in the glue gun holder, the "0 mark" of the capacity scale line is exactly aligned with the indicator arrow.

8. The glue dispensing mechanism according to claim 7, characterized in that: The tensioning mechanism includes a drive wheel rotatably mounted on the right end of the glue gun holder and a driven wheel rotatably mounted on the left end of the glue gun holder, with the belt wound between the drive wheel and the driven wheel; the tensioning mechanism also includes two sets of tensioning wheels rotatably mounted on the left end of the glue gun holder and close to the driven wheel, the two sets of tensioning wheels respectively abutting the upper layer of the belt, and the vertical height of the two sets of tensioning wheels is lower than the height of the driven wheel.

9. The glue-applying mechanism according to claim 8, characterized in that: The driven wheel is also provided with side guards on the front and rear rims to prevent the belt from slipping off.

10. The glue dispensing mechanism according to claim 7, characterized in that: The synchronous transmission mechanism includes two sets of limiting seats concentrically mounted on the lead screw, a worm gear located between the two sets of limiting seats and concentrically mounted on the lead screw, and a worm gear concentrically connected to the driving wheel and meshing with the worm gear for transmission; wherein the limiting seats are connected to the lead screw through bearings, and the worm gear is connected to the lead screw through threads.

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