An automatic hot-melt glue gun with a glue stick adding function

Abstract

The application discloses a hot melt glue gun capable of automatically adding glue sticks, and belongs to the technical field of hot melt glue guns. The hot melt glue gun comprises a gun body, a fixed plate is fixedly connected in the gun body, a driving toothed plate is slidably connected to the top of the fixed plate, the bottom of the driving toothed plate extends to below the fixed plate, a bottom plate is arranged in the gun body and above the fixed plate, a material box is arranged in the gun body, a rotating shaft is rotatably connected between the bottom of the material box and the bottom plate, the bottom end of the rotating shaft extends to below the bottom plate and is fixedly connected with a one-way transmission gear, the one-way transmission gear is in meshing transmission with the driving toothed plate, a transmission wheel is fixedly connected to the surface of the rotating shaft and above the bottom plate, the bottom of the material box is communicated with the inside of the gun body, glue sticks are arranged in the material box, a pressing device suitable for the glue sticks is arranged at the top of the material box, and the hot melt glue gun is capable of automatically adding glue sticks.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of hot melt glue guns, in particular to a hot melt glue gun capable of automatically adding glue sticks. BACKGROUND

[0002] A hot melt glue gun is a device capable of melting glue sticks and spraying glue liquid onto workpieces for sealing. At present, a hot melt glue gun generally uses electricity as energy source, and an electric heating element is arranged inside the glue gun. The electric heating element heats to melt the pushed-in glue stick, and the melted glue is extruded through the gun head. The glue stick is continuously pushed to be heated and liquefied, and the glue is continuously discharged. However, the length of the existing glue stick is limited, and a new glue stick needs to be inserted in time when the glue stick is used up, which is easy to be forced to stop operation in the operation process, thereby affecting the bonding effect and efficiency. SUMMARY

[0003] (I) Technical problems solved

[0004] In view of the deficiencies of the prior art, the present application provides a hot melt glue gun capable of automatically adding glue sticks, which solves the problem of manual addition of glue sticks in the existing hot melt glue gun and avoids the problem of affecting the bonding effect and efficiency due to the addition of glue sticks.

[0005] (II) Technical solutions

[0006] To achieve the above object, the present application is implemented by the following technical solutions: a hot melt glue gun capable of automatically adding glue sticks, comprising a gun body, a wrench is rotationally connected to the gun body through a fixing column, a fixing plate is fixedly connected inside the gun body, a drive gear plate is slidably connected to the top of the fixing plate, the bottom of the drive gear plate extends below the fixing plate, a connecting rod is rotationally connected between the bottom of the drive gear plate and the wrench, a tension spring is arranged between the inside of the gun body and the wrench, a bottom plate is arranged inside the gun body above the fixing plate, a material box is arranged inside the gun body above the bottom plate, a rotating shaft is rotationally connected between the bottom of the material box on the left and right sides and the bottom plate, the bottom end of the rotating shaft extends below the bottom plate and is fixedly connected with a one-way transmission gear, the one-way transmission gear is in meshing transmission with the drive gear plate, a transmission wheel is fixedly connected to the surface of the rotating shaft above the bottom plate, the bottom of the material box is communicated with the inside of the gun body, a glue stick is arranged in the material box, and a pressing device suitable for the glue stick is arranged on the top of the material box.

[0007] Preferably, the pressing device comprises a fixed cover, a pressing rod is vertically slidably connected in the fixed cover, the bottom end of the pressing rod is fixedly connected with a wheel carrier, a pressing wheel is rotationally connected to the center of the wheel carrier, a spring is arranged between the top of the wheel carrier and the bottom of the fixed cover, and a limiting block is arranged on the top end of the pressing rod.

[0008] Preferably, the bottom side of the cartridge is fixedly connected with a one-way locking block, and the top of the transmission wheel is provided with a tooth groove matched with the one-way locking block.

[0009] Preferably, the one-way transmission gear comprises an outer gear ring, a transmission ring is rotatably connected at the center of the outer gear ring, ratchet teeth are fixedly connected to the surface of the transmission ring, a transmission column is fixedly connected to the inner wall of the outer gear ring, the outer gear ring drives the transmission ring to rotate in one direction through the transmission column and the ratchet teeth, and a fixed shaft hole is arranged at the center of the transmission ring.

[0010] Preferably, the top and the bottom of the side surface of the transmission ring are provided with outwardly protruding annular rings, and the inner wall of the outer gear ring is provided with ring grooves matched with the annular rings.

[0011] Preferably, the surface of the compression wheel is provided with grooves matched with the rubber stick.

[0012] Preferably, the surface of the transmission wheel is a concave arc surface, and the minimum distance between the two transmission wheels is smaller than the diameter of the rubber stick.

[0013] Preferably, the surface of the transmission wheel is made of rubber.

[0014] Preferably, the fixed cover is clamped and fixed to the top of the cartridge.

[0015] (Three) beneficial effects

[0016] The application provides an automatic hot melt glue gun with a rubber stick.

[0017] By arranging the cartridge on the gun body, the compression device on the cartridge is used to make the rubber stick tightly adhere to the transmission wheel for moving the rubber stick in the gun body, the feeding of the rubber stick is realized, the upper rubber stick is sent to the feeding position by the compression device, the automatic addition of the rubber stick is realized, the forced interruption due to the lack of rubber stick in the operation process is avoided, and the working efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the application;

[0019] Figure 2 It is a schematic diagram of the internal structure of the application;

[0020] Figure 3 It is a schematic diagram of the position of the transmission wheel and the rubber stick of the application;

[0021] Figure 4 It is a schematic diagram of the structure of the one-way transmission gear of the application;

[0022] Figure 5 It is a sectional view of the one-way transmission gear of the application.

[0023] In the figure: 1-gun body, 2-fixed column, 3-wrench, 4-fixed plate, 5-driving gear plate, 6-connecting rod, 7-tension spring, 8-driving wheel, 9-one-way transmission gear, 91-outer gear ring, 92-driving ring, 93-ratchet teeth, 94-driving column, 95-fixed shaft hole, 10-material box, 11-gum stick, 12-fixed cover, 13-pressing rod, 14-wheel frame, 15-pressing wheel, 16-spring, 17-limiting block, 18-rotating shaft, 19-bottom plate, 20-one-way locking block. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0025] Please refer to Figures 1-5 The present application provides a technical solution: an automatic hot melt glue gun adding gum stick, comprising a gun body 1, the gun body 1 is rotatably connected with a wrench 3 through a fixed column 2, the gun body 1 is fixedly connected with a fixed plate 4 inside, the top of the fixed plate 4 is slidably connected with a driving gear plate 5, the top of the fixed plate 4 is provided with a sliding groove matched with the driving gear plate 5, the two sides of the driving gear plate 5 are provided with gear grooves, the bottom of the driving gear plate 5 extends to below the fixed plate 4, the bottom of the driving gear plate 5 is rotatably connected with a connecting rod 6 between the two sides of the wrench 3, the gun body 1 is provided with a tension spring 7 between one side and the wrench 3 inside, the wrench 3 is rotated around the fixed column 2, the tension spring 7 is pulled, and the driving gear plate 5 is moved through the connecting rod 6 at the same time;

[0026] The bottom plate 19 is arranged in the gun body 1 and above the fixed plate 4, the cartridge 10 is arranged in the gun body 1 and above the bottom plate 19, the rotation shaft 18 is rotatably connected between the bottom of the cartridge 10 and the bottom plate 19, the bottom end of the rotation shaft 18 extends below the bottom plate 19 and is fixedly connected with the one-way transmission gear 9, the one-way transmission gear 9 is in meshing transmission with the driving gear plate 5, the rotation shaft 18 is driven to rotate in one direction by the one-way transmission gear 9, the surface of the rotation shaft 18 and above the bottom plate 19 is fixedly connected with the transmission wheel 8, the surface of the transmission wheel 8 is arranged as a concave arc surface, the contact area with the glue stick is increased, the minimum distance between the two transmission wheels 8 is less than the diameter of the glue stick, the surface of the transmission wheel 8 is made of rubber material, the friction between the transmission wheel 8 and the glue stick is improved, the bottom of the cartridge 10 is communicated with the inside of the gun body 1, the bottom of one side of the cartridge 10 is located at the feeding port of the heating component in the gun body 1, and the surface of the cartridge 10 is provided with a notch, the glue stick directly enters the inside of the heating component for heating under the driving of the transmission wheel 8, and the heating component and other components of the gun body are the same as the existing glue gun structure. The glue stick 11 is arranged in the cartridge 10, and the top of the cartridge 10 is provided with a pressing device suitable for the glue stick 11, because the surface of the glue stick is smooth and the surface of the transmission wheel 8 is made of rubber material, the friction between the transmission wheel 8 and the glue stick is greater than the friction between the transmission wheel 8 and the adjacent glue stick, so that the bottom glue stick can be moved by the rotation of the transmission wheel 8.

[0027] The pressing device comprises a fixed cover 12, the fixed cover 12 is clamped and fixed with the top of the cartridge 10, which facilitates disassembly and assembly, the fixed cover 12 is vertically and slidably connected with a pressing rod 13, the bottom end of the pressing rod 13 is fixedly connected with a wheel frame 14, the center of the wheel frame 14 is rotatably connected with a pressing wheel 15, the surface of the pressing wheel 15 is provided with a groove matched with the glue stick, the top of the wheel frame 14 and the bottom of the fixed cover 12 are provided with a spring 16, the top end of the pressing rod 13 is provided with a limiting block 17, the glue sticks are tightly attached to each other by the spring 16 and the pressing wheel 15, the friction between the bottom glue stick and the transmission wheel 8 is improved, the pressing wheel 15 is provided with two and located at the corresponding positions of the two ends of the glue stick, when the bottom glue stick is separated from the transmission wheel 8 close to the gun port, the glue stick of the upper layer is in contact with the transmission wheel 8 under the pressure of the pressing wheel 15, and moves by the rotation of the transmission wheel 8, so that automatic feeding is realized.

[0028] The bottom side of the cartridge 10 is fixedly connected with a one-way locking block 20, the structure of the one-way locking block 20 is the same as that of the one-way locking structure of the nylon cable tie, the top of the transmission wheel 8 is provided with a tooth groove matched with the one-way locking block 20, and the reverse rotation of the transmission wheel 8 is avoided by the one-way locking block 20.

[0029] The one-way transmission gear 9 comprises an outer gear ring 91, the center of the outer gear ring 91 is rotationally connected with a transmission ring 92, the surface of the transmission ring 92 is fixedly connected with a ratchet tooth 93, the inner wall of the outer gear ring 91 is fixedly connected with a transmission column 94, the outer gear ring 91 drives the transmission ring 92 to rotate in one direction through the transmission column 94 and the ratchet tooth 93, the center of the transmission ring 92 is provided with a fixed shaft hole 95, the top and the bottom of the side surface of the transmission ring 92 are provided with outwardly protruding annular rings, and the inner wall of the outer gear ring 91 is provided with annular grooves matched with the annular rings, the driving tooth plate 5 is in meshing transmission with the outer gear ring 91, the rotation of the outer gear ring 91 drives the transmission ring 92 to rotate through the transmission column 94 and the ratchet tooth 93, so that the transmission ring 8 is driven to rotate, when the driving tooth plate 5 is reset, the driving tooth plate 5 moves reversely, drives the outer gear ring 91 to rotate reversely, and the transmission column 94 slides on the ratchet tooth 93, and at the same time, the reverse rotation of the transmission ring 8 is limited due to the arrangement of the one-way locking block 20, so that it is ensured that the one-way transmission gear 9 can only drive in one direction.

[0030] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; it is not intended to exclude myriad other embodiments of the present application that are not specifically described. Thus, for example, an arrangement for carrying out an embodiment described herein can include a number of steps or components or elements in addition to, or other than, those illustrated. It is not intended to exclude any otherwise useful arrangement of the present application. Further, it should be understood that any numerical characteristics recited herein should be construed in a metaphorical and / or approximate sense, unless expressly stated otherwise. Further, it should be understood that any numerical characteristics recited herein should be construed in a metaphorical and / or approximate sense, unless expressly stated otherwise. Further, it should be understood that the words and / or phrases such as "first" and "second" are used only to distinguish one element from another, and do not necessarily imply a physical or chronological precedence. Also, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. Similarly, the terms "includes", "including", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0031] While embodiments of the application have been shown and described, it is to be understood that the application is not limited to the details of the embodiments described, since numerous modifications and changes can be made to the embodiments without departing from the spirit and scope of the application as defined by the appended claims and their equivalents.

Claims

1. A hot melt glue gun with automatic glue stick adding function, comprising a gun body (1), a handle (3) is rotatably connected in the gun body (1) by a fixing column (2), characterized in that: The inside of the gun body (1) is fixedly connected with a fixed plate (4), the top of the fixed plate (4) is slidably connected with a driving toothed plate (5), the bottom of the driving toothed plate (5) extends below the fixed plate (4), a connecting rod (6) is rotatably connected between the bottom of the driving toothed plate (5) and the wrench (3), a tension spring (7) is arranged between the inside of the gun body (1) and the wrench (3), a bottom plate (19) is arranged inside the gun body (1) and above the fixed plate (4), a material box (10) is arranged inside the gun body (1) and above the bottom plate (19), a rotating shaft (18) is rotatably connected between the bottom of the material box (10) and the bottom plate (19), the bottom end of the rotating shaft (18) extends below the bottom plate (19) and is fixedly connected with a one-way transmission gear (9), the one-way transmission gear (9) is in meshing transmission with the driving toothed plate (5), a transmission wheel (8) is fixedly connected to the surface of the rotating shaft (18) and above the bottom plate (19), the bottom of the material box (10) is in communication with the inside of the gun body (1), a rubber stick (11) is arranged in the material box (10), and a pressing device suitable for the rubber stick (11) is arranged on the top of the material box (10). The bottom side of the material box (10) is fixedly connected with a one-way locking block (20), and the top of the transmission wheel (8) is provided with a tooth groove matched with the one-way locking block (20). The surface of the transmission wheel (8) is provided as a concave arc surface, and the minimum distance between the two transmission wheels (8) is less than the diameter of the rubber stick. The surface of the transmission wheel (8) is made of rubber material.

2. The hot-melt glue gun with automatic glue stick adding function according to claim 1, characterized in that: The pressing device comprises a fixed cover (12), a pressing rod (13) is vertically and slidably connected in the fixed cover (12), a wheel frame (14) is fixedly connected to the bottom end of the pressing rod (13), a pressing wheel (15) is rotatably connected to the center of the wheel frame (14), a spring (16) is arranged between the top of the wheel frame (14) and the bottom of the fixed cover (12), and a limiting block (17) is arranged on the top end of the pressing rod (13).

3. The hot-melt glue gun with automatic glue stick adding function according to claim 1, characterized in that: The one-way transmission gear (9) comprises an outer gear ring (91), a transmission ring (92) is rotatably connected to the center of the outer gear ring (91), a ratchet tooth (93) is fixedly connected to the surface of the transmission ring (92), a transmission column (94) is fixedly connected to the inner wall of the outer gear ring (91), the outer gear ring (91) drives the transmission ring (92) to rotate in one direction through the transmission column (94) and the ratchet tooth (93), and a fixed shaft hole (95) is arranged in the center of the transmission ring (92).

4. The hot-melt glue gun with automatic glue stick adding function according to claim 3, characterized in that: The top and bottom of the side surface of the transmission ring (92) are provided with outwardly protruding annular rings, and the inner wall of the outer gear ring (91) is provided with ring grooves matched with the annular rings.

5. The hot-melt glue gun with automatic glue stick adding function according to claim 2, characterized in that: The surface of the pressing wheel (15) is provided with grooves matched with the rubber stick.

6. The hot-melt glue gun with automatic glue stick adding function according to claim 2, characterized in that: The fixed cover (12) and the top of the material box (10) are clamped and fixed.

Images