A welding adhesive strip pushing mechanism

Abstract

This utility model discloses a welding adhesive strip pushing mechanism, including a main body, a gear set, and a pressing seat. The main body has a conveying channel, and a first driving port and a second driving port are respectively provided on opposite sides of the conveying channel. The gear set is located at the second driving port, and the gear set has at least two rotating gears extending into the conveying channel. The gear set is partially inserted into the conveying channel and is connected to a driving device, which can drive the gear set to rotate. The pressing seat is located at the first driving port and has multiple adjusting wheels. The pressing seat can drive the adjusting wheels to adjust the size of the extension into the conveying channel. Through the double rotating gear pushing, the pressure area between the PE adhesive strip and the rotating gear is increased, and more teeth are pressed down. At the same time, the pressing seat can drive the multiple adjusting wheels to move between close to and away from the rotating gear, thereby pressing the PE adhesive strip.

Description

Technical Field

[0001] This utility model relates to the field of welding adhesive strips, and in particular to a welding adhesive strip pushing mechanism. Background Technology

[0002] PE welding guns (polyethylene welding guns) are hot melt tools specifically designed for welding polyethylene (PE) pipes or sheets. They are widely used in water supply and drainage, gas pipelines, corrosion protection projects, and other fields.

[0003] The existing PE welding gun uses a pneumatic pusher to push PE adhesive strips (i.e., hot melt adhesive strips), which is bulky and requires an air pump, making it inconvenient for outdoor work.

[0004] Of course, some systems use gear drives. One problem encountered is that when the PE strip becomes clogged, the gears directly scrape the strip flat, creating an arc-shaped notch. The gear drive no longer engages with the PE strip, causing it to lose power. Even after the clog clears, the PE strip remains permanently slippery and requires manual pushing to be pushed forward again.

[0005] For example, Chinese patent CN202020954854.4 uses a connecting push block design to achieve the pushing of the rubber strip, but it still has the problem of slippage. Summary of the Invention

[0006] The main purpose of this invention is to propose a welding adhesive strip pushing mechanism, which aims to improve the existing welding gun structure, thereby achieving stable delivery of adhesive strips and improving the stability of adhesive output from the welding gun.

[0007] To achieve the above objectives, this utility model proposes a welding adhesive strip pushing mechanism, comprising: The main body is provided with a conveying channel, and a first driving port and a second driving port are respectively provided on opposite sides of the conveying channel; A gear set is provided at the second drive port. The gear set has at least two rotating gears that extend into the conveying channel. The gear set is partially extended into the conveying channel. The gear set is connected to the drive device and can drive the gear set to rotate. A clamping seat is located at the first drive port. The clamping seat is equipped with multiple adjusting wheels, which can drive the adjusting wheels to adjust the size of the material extending into the conveying channel.

[0008] In practical design, the dual rotating gear propulsion increases the pressure area between the PE rubber strip and the rotating gears, resulting in more teeth being pressed down; any one of the rotating teeth is connected to the drive unit. At the same time, the clamping seat can drive multiple adjusting wheels to move between the rotating gear and away from the rotating gear, thereby pressing the PE strip. When the motor rotates, the rotating gear drives the strip to move outward, avoiding the problem of slippage of a single gear. Attached Figure Description

[0009] Figure 1 This is a cross-sectional view along the length of the present invention; Figure 2 This is a cross-sectional view of the present invention in the width direction; Figure 3 This is a three-dimensional schematic diagram of the present invention; Figure 4 This is an exploded view of the present invention.

[0010] In the picture, 1 is the main body, 10 is the conveying channel, 11 is the first drive port, and 12 is the second drive port. 2 represents the gear set, 21 represents the first gear, 22 represents the second gear, and 23 represents the third gear. 3 is the clamping seat, 30 is the adjusting wheel, and 31 is the groove. 4 represents the screw. 5 represents a rotary motor. Detailed Implementation

[0011] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0012] It should be noted that if any directional indication (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial, etc.) is involved in the embodiments of this utility model, the directional indication is only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0013] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0014] like Figures 1 to 4 As shown, a welding adhesive strip pushing mechanism includes: The main body 1 is provided with a conveying channel 10, and a first driving port 11 and a second driving port 12 are respectively provided on opposite sides of the conveying channel 10. Gear set 2, the gear set 2 includes a second drive port 12, the gear set 2 is provided with at least two rotating gears that extend into the conveying channel 10, the gear set 2 partially extends into the conveying channel 10, the gear set 2 is connected to the drive device and can drive the gear set 2 to rotate; The clamping seat 3 is located at the first drive port 11. The clamping seat 3 is provided with multiple adjusting wheels 30. The clamping seat 3 can drive the adjusting wheels 30 to adjust the size of the material extending into the conveying channel 10.

[0015] In practical design, the dual rotating gear propulsion increases the pressure area between the PE rubber strip and the rotating gears, resulting in more teeth being pressed down; any one of the rotating teeth is connected to the drive unit. At the same time, the clamping seat 3 can drive multiple adjusting wheels 30 to move between the area near the rotating gear and the area away from the rotating gear, thereby pressing the PE strip. When the motor rotates, the rotating gear drives the strip to move outward, avoiding the problem of slippage of a single gear.

[0016] Meanwhile, the clamping seat 3 can be adjusted according to the different outer diameters of the glue strip, thereby improving the applicability of the glue gun.

[0017] Specifically, the adjusting wheel 30 has a groove 31 in the middle, into which a portion of the rubber strip can extend, thereby increasing the contact area between the rubber strip and the adjusting wheel 30 and thus increasing the friction.

[0018] In this embodiment of the utility model, the groove 31 is V-shaped.

[0019] Specifically, the adjusting wheel 30 has three parts, and the grooves 31 are distributed along the length direction. Of course, two or four grooves can be provided. The adjusting wheel can rotate freely, while the adjusting screw 4 can change the distance between the adjusting wheel and the gear. The smaller the distance, the greater the deformation of the PE rubber strip under pressure, resulting in greater pressure and deeper indentations on the PE rubber strip. As a result, gears 21 and 22 push out a greater force onto the PE rubber strip, making it less likely to scrape the PE rubber strip.

[0020] In this embodiment of the invention, the main body 1 is provided with a screw hole, and a screw 4 is screwed into the screw hole. The end of the screw 4 is connected to the clamping seat 3. The adjusting wheel 30 extends into the first drive port 11.

[0021] Specifically, the width of the first drive port 11 is matched with the width of the adjusting wheel 30, thereby guiding the clamping seat 3.

[0022] In this embodiment of the invention, the end of the second drive port 12 is arc-shaped, which can provide a deformation range for the adhesive strip.

[0023] Specifically, the rotating gear includes a first gear 21, a second gear 22, and a third gear 23 that meshes with the first gear 21 and the second gear 22 respectively. The first gear 21 and the second gear 22 are spaced apart and parallel. The first gear 21 is connected to the drive device and has three gears of the same size. One of them is driven by a motor. Through the design of the third gear 23, the first gear 21 and the second gear 22 can be designed in the same direction, thereby achieving the pressing of the rubber strip.

[0024] The two-gear design effectively prevents slippage.

[0025] In this embodiment of the present invention, the outer walls of the first gear 21 and the second gear 22 are provided with spaced teeth, wherein the shape of the teeth can be designed according to actual needs, such as sharp, arc-shaped or small tooth-shaped.

[0026] Specifically, the driving device is a rotary motor 5, and the adjusting wheel 30 located in the middle extends between the adjacent first gear 21 and second gear 22. Specifically, the drive device is located on the side wall of the main body 1, and its drive shaft extends into the shaft of the first gear 21, thereby achieving synchronous rotation.

[0027] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A welding adhesive strip pushing mechanism, characterized in that, include: The main body is provided with a conveying channel, and a first driving port and a second driving port are respectively provided on opposite sides of the conveying channel; A gear set is provided at the second drive port. The gear set has at least two rotating gears that extend into the conveying channel. The gear set is partially extended into the conveying channel. The gear set is connected to the drive device and can drive the gear set to rotate. A clamping seat is located at the first drive port. The clamping seat is equipped with multiple adjusting wheels, which can drive the adjusting wheels to adjust the size of the material extending into the conveying channel.

2. The welding adhesive strip pushing mechanism as described in claim 1, characterized in that: The adjusting wheel has a groove in the middle, into which a portion of the rubber strip can extend.

3. The welding adhesive strip pushing mechanism as described in claim 2, characterized in that: The groove is V-shaped.

4. The welding adhesive strip pushing mechanism as described in claim 2, characterized in that: The adjusting wheel is provided in three parts, and the grooves are distributed along the length direction.

5. The welding adhesive strip pushing mechanism as described in claim 2, characterized in that: The main body is provided with screw holes, and a screw is screwed into the screw holes. The end of the screw is connected to the clamping seat. The adjusting wheel extends into the first drive port.

6. The welding adhesive strip pushing mechanism as described in claim 1, characterized in that: The width of the first drive port is matched with the width of the adjusting wheel.

7. The welding adhesive strip pushing mechanism as described in claim 1, characterized in that: The end of the second drive port is arc-shaped.

8. The welding adhesive strip pushing mechanism as described in claim 1, characterized in that: The rotating gear includes a first gear, a second gear, and a third gear that meshes with the first gear and the second gear. The first gear and the second gear are spaced apart and parallel. The first gear is connected to the drive device.

9. The welding adhesive strip pushing mechanism as described in claim 8, characterized in that: The outer walls of the first gear and the second gear are provided with spaced teeth.

10. The welding adhesive strip pushing mechanism as described in claim 8, characterized in that: The drive device is a rotary motor, and the adjusting wheel located in the middle extends between the adjacent first gear and second gear.

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