Quantitative and continuous glue feeding structure and hot melt glue gun

Abstract

The utility model discloses a quantitative and continuous glue feeding structure and hot melt glue gun, including clamping unit, push component, slide way and stopper, clamping unit is unclosed structure, push component and clamping unit are connected, clamping unit slides along slide way, the spacing between the two slide way gradually increases from initial position to glue feeding position, and the spacing between the two slide way gradually increases from the initial position to the glue feeding position. And the limiting block is movably arranged at the glue feeding position of the slide way. In the process that the clamping unit moves towards the glue feeding position, along with the gradual increase of the distance between the two slide ways, the unclosed range of the clamping unit is gradually increased, the clamping force of the clamping unit on a glue stick is weakened, one-time glue feeding process is completed at the glue feeding position, and the clamping unit is driven by the pushing assembly to independently move towards the initial position, so that the glue feeding efficiency is greatly improved. And preparation is made for next glue feeding, so that the continuous glue feeding process is realized. The position of the limiting block on the sliding way can be adjusted, namely the moving distance of the clamping unit on the sliding way can be adjusted, and a user can adjust the glue outlet amount of the hot melt glue gun by selecting the one-time glue feeding length.

Description

Technical Field

[0001] This utility model relates to the field of hot melt glue gun technology, and more specifically, to a quantitative and continuous glue feeding structure and a hot melt glue gun. Background Technology

[0002] Hot melt glue guns, as a widely used glue application tool, play an important role in various manual, industrial manufacturing, and repair fields. Their core working principle involves heating a solid glue stick to a molten state using a heating device, forming a flowable glue liquid. This liquid is then precisely sprayed onto the surface of the workpiece to be bonded or sealed through a specific nozzle structure. This process not only requires the hot melt glue gun to have efficient heating capabilities and stable temperature control, but also places high demands on its ease of operation, feed accuracy, and safety.

[0003] However, most hot melt glue guns on the market today use a manual feeding mechanism to control the glue stick's feed. While this design is simple and low-cost, it has revealed several shortcomings in practical use. First, manual feeding requires the user to operate with both hands: one hand holds the gun, and the other hand pushes the glue stick, which limits the operator's flexibility and work efficiency.

[0004] Secondly, manually pushing the glue stick lacks precision in controlling the feed rate. The force and speed at which each user pushes the stick vary, making it difficult to maintain a consistent feed rate, which in turn affects the stability and uniformity of the glue output from the hot melt glue gun.

[0005] In addition, when a hot melt glue gun is in operation, its internal heating element heats the glue stick to a temperature high enough to melt it. If the operator directly touches the other end of the glue stick in the heated area to push it forward, there is a certain safety hazard.

[0006] The above problems are worth solving. Utility Model Content

[0007] To overcome the problems of existing hot melt glue guns that use manual pushing of the glue stick for feeding, which requires two hands to operate, is inconvenient, and makes it difficult to control the amount of glue stick being pushed, and poses certain safety hazards due to the direct action of the hand on the other end of the glue stick, this utility model provides a quantitative and continuous glue feeding structure and a hot melt glue gun.

[0008] The technical solution of this utility model is as follows:

[0009] A quantitative and continuous glue feeding structure, applied to a hot melt glue gun, includes:

[0010] A clamping unit for clamping a glue stick, wherein the clamping unit is an open structure;

[0011] A pushing component is connected to the clamping unit, and the pushing component drives the clamping unit to move between the initial position and the glue feeding position;

[0012] The two slides are respectively disposed on both sides of the clamping unit, and the clamping unit slides along the slides. The distance between the two slides gradually increases from the initial position to the glue feeding position.

[0013] A limiting block is movably disposed at the glue delivery position of the slide.

[0014] According to the present invention based on the above scheme, the clamping unit includes a clamping body and a sliding part. The clamping body is an open structure, and the opening of the clamping body is located between two sliding parts, which are respectively located on both sides of the clamping body.

[0015] According to the present invention based on the above scheme, the clamping body is provided with an elastic part on the side facing the glue feeding position.

[0016] According to the present invention based on the above solution, the pushing component includes:

[0017] A handle, which is rotatably connected to the housing of the hot melt glue gun;

[0018] A transmission rod, the first end of which is connected to the handle;

[0019] A push rod, the first end of which is connected to the second end of the transmission rod, and the second end of which is connected to the clamping unit.

[0020] According to the above-described scheme of this utility model, the push rod and the clamping unit are movably connected by a rotating shaft, and the length of the rotating shaft is greater than the sum of the widths of the clamping unit and the push rod.

[0021] According to the above-described scheme of this utility model, the transmission rod extends outward to form a first connecting member and a second connecting member;

[0022] The first connector includes a first head, a first connecting portion, and a limiting structure located on the connecting portion. The diameter of the first head is larger than that of the first connecting portion. The first connector has a first opening that penetrates the first head and the first connecting portion.

[0023] The second connector includes a second head and a second connecting portion. The diameter of the second head is larger than that of the second connecting portion, and the second connector has a second opening that penetrates the second head and the second connecting portion.

[0024] According to the above-described scheme of this utility model, the push rod has an arc-shaped structure.

[0025] According to the above-described scheme, the present invention further includes a reset component, which is connected to the push component, and the reset component drives the push component to reset under its own elastic force.

[0026] A hot melt glue gun includes a glue gun housing and a metering and continuous glue feeding structure as described above disposed on the glue gun housing. The glue gun housing has glue feeding channels inside, and the metering and continuous glue feeding structure is disposed between the glue feeding channels. The clamping unit is located on the same straight line as the glue feeding channels.

[0027] According to the above-described scheme of this utility model, the glue gun housing includes a first housing and a second housing, and the first housing and the second housing are fastened together.

[0028] According to the above-described solution, the beneficial effect of this utility model is that, driven by the pushing component, the clamping unit moves along the slide between the initial position and the glue feeding position. As the clamping unit moves towards the glue feeding position, the distance between the two slides gradually increases, the unclosed range of the clamping unit gradually increases, the clamping force of the clamping unit on the glue stick gradually weakens, and a glue feeding process is completed at the glue feeding position. The clamping unit moves independently to the initial position under the drive of the pushing component to prepare for the next glue feeding, thereby realizing a continuous glue feeding process.

[0029] The slide of this invention has a limiting block at the glue feeding position. The limiting block restricts the movement length of the clamping unit on the slide, thereby ensuring that the glue feeding length is consistent each time. This meets the user's need for precise control of the glue output of the hot melt glue gun. Furthermore, the position of the limiting block on the slide is adjustable, thereby adjusting the distance the clamping unit moves on the slide, i.e., adjusting the distance between the initial position and the glue feeding position. Users can adjust the position of the limiting block on the slide as needed, and thus select the glue feeding length once, thereby adjusting the glue output of the hot melt glue gun. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of this utility model;

[0031] Figure 2 This is a structural schematic diagram from another perspective of the present invention;

[0032] Figure 3 This is a schematic diagram of the clamping unit of this utility model;

[0033] Figure 4 This is a structural schematic diagram of the clamping unit of this utility model from another perspective;

[0034] Figure 5 This is a schematic diagram of the push rod of this utility model.

[0035] In the figure, the various attached figures are labeled as follows:

[0036] 10. Clamping unit; 11. Clamping body; 12. Sliding part; 13. Elastic part; 20. Pushing assembly; 21. Handle; 22. Transmission rod; 221. First connecting member; 2211. First head; 2212. First connecting part; 2213. Limiting structure; 2214. First opening; 222. Second connecting member; 2221. Second head; 2222. Second connecting part; 2223. Second opening; 23. Pushing rod; 30. Slide rail; 40. Limiting block; 50. Reset assembly; 60. Glue rod. Detailed Implementation

[0037] To make the technical problems, technical solutions and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0038] It should be noted that the terms "comprising" and "having," and any variations thereof, in the specification and claims of this utility model are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or devices. Terms such as "set up" should be interpreted broadly; for example, it can refer to a fixed connection, a detachable connection, or an integral part; it can refer to a mechanical connection or an electrical connection; it can refer to a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication of two elements or the interaction between two elements, unless otherwise expressly defined. Terms such as "upper," "lower," "left," "right," "front," "rear," and "bottom" indicate orientations or positions based on the orientations or positions shown in the accompanying drawings, and are only for ease of description and should not be construed as limiting the present technical solution.

[0039] It should be noted that most hot melt glue guns on the market currently use a manual feeding mechanism to control the glue stick's feed. While this design is simple in structure and low in cost, it has revealed several shortcomings in actual use. First, manual feeding requires the user to operate with both hands: one hand holds the gun, and the other hand is responsible for pushing the glue stick, which limits the operator's flexibility and work efficiency.

[0040] Secondly, manually pushing the glue stick lacks precision in controlling the feed rate. The force and speed at which each user pushes the stick vary, making it difficult to maintain a consistent feed rate, which in turn affects the stability and uniformity of the glue output from the hot melt glue gun.

[0041] In addition, when a hot melt glue gun is in operation, its internal heating element heats the glue stick to a temperature high enough to melt it. If the operator directly touches the other end of the glue stick in the heated area to push it forward, there is a certain safety hazard.

[0042] like Figures 1-5 As shown, this embodiment provides a quantitative and continuous glue feeding structure. The clamping unit 10 moves along the slide 30 between the initial position and the glue feeding position under the drive of the pushing component 20. During the movement of the clamping unit 10 towards the glue feeding position, as the distance between the two slides 30 gradually increases, the unclosed range of the clamping unit 10 gradually increases, the clamping force of the clamping unit 10 on the glue stick 60 gradually weakens, and a glue feeding process is completed at the glue feeding position. The clamping unit 10 moves independently towards the initial position under the drive of the pushing component 20 to prepare for the next glue feeding, thereby realizing a continuous glue feeding process.

[0043] The slide 30 is equipped with a limiting block 40 at the glue feeding position. The limiting block 40 restricts the movement length of the clamping unit 10 on the slide 30, thereby ensuring that the glue feeding length is consistent each time. This meets the user's requirement for precise control of the glue dispensing amount of the hot melt glue gun. Furthermore, the position of the limiting block 40 on the slide 30 is adjustable, thereby adjusting the distance that the clamping unit 10 moves on the slide 30, that is, adjusting the distance between the initial position and the glue feeding position. The user can adjust the position of the limiting block 40 on the slide 30 as needed, and thus select the length of glue feeding in one go, thereby adjusting the glue dispensing amount of the hot melt glue gun.

[0044] Specifically, this quantitative and continuous glue feeding structure is applied to a hot melt glue gun, including a clamping unit 10, a pushing component 20, a slide 30, and a limiting block 40. The clamping unit 10 is used to clamp the glue stick 60. The clamping unit 10 is an open structure that can be adjusted according to the change in the spacing of the slide 30. The pushing component 20 is connected to the clamping unit 10, and the pushing component 20 drives the clamping unit 10 to move between the initial position and the glue feeding position. Two slides 30 are respectively provided on both sides of the clamping unit 10, and the clamping unit 10 slides along the slides 30. The space between the two slides 30 is... The spacing gradually increases from the initial position to the glue feeding position. As the clamping unit 10 moves along the slide 30 towards the glue feeding position, the clamping force of the clamping unit 10 on the glue stick 60 gradually weakens until it is completely released at the glue feeding position, completing one glue feeding process. The limiting block 40 is movably set at the glue feeding position of the slide 30. The position of the limiting block 40 can be adjusted according to user needs. By adjusting the position of the limiting block 40, the distance that the clamping unit 10 moves on the slide 30 can be changed, that is, the distance between the initial position and the glue feeding position, thereby achieving precise control of the glue feeding length.

[0045] Glue feeding process: Driven by the pushing component 20, the clamping unit 10, holding the glue rod 60, moves from the initial position to the glue feeding position. As the distance between the slide rails 30 gradually increases, the unclosed range of the clamping unit 10 also increases accordingly, and the clamping force on the glue rod 60 gradually weakens. When the clamping unit 10 reaches the glue feeding position, its clamping force on the glue rod 60 has been completely released, and the glue rod 60 is thus fed out a certain length.

[0046] Reset preparation: After the glue feeding is completed, the push assembly 20 drives the clamping unit 10 to move independently back to the initial position to prepare for the next glue feeding process.

[0047] Limit adjustment: Users can adjust the position of the limit block 40 on the slide 30 to change the glue feeding length, thereby achieving precise control of the glue output of the hot melt glue gun.

[0048] In one embodiment, the clamping unit 10 includes a clamping body 11 and sliding parts 12. The clamping body 11 is an open structure used to clamp the glue stick 60, and the clamping force on the glue stick 60 is adjusted by changing the opening. The opening of the clamping body 11 is located between two sliding parts 12, which are respectively located on both sides of the clamping body 11. As the sliding parts 12 move along the slide 30 towards the glue feeding position, the opening on the clamping body 11 gradually increases, and the clamping force of the clamping unit 10 on the glue stick 60 gradually decreases, preparing for the clamping unit 10 to move independently back to the initial position after glue feeding is completed. As the sliding parts 12 move along the slide 30 towards the initial position, the opening gradually decreases, and the clamping force of the clamping unit 10 on the glue stick 60 gradually increases, preparing for the next glue feeding.

[0049] The clamping body 11 has an elastic part 13 on the side facing the glue feeding position. The elastic part 13 reduces the impact force of the slide 30 on the clamping unit 10 at the glue feeding position, protects the clamping unit 10 from damage, improves the stability and reliability of the glue feeding process, and extends the service life of the equipment.

[0050] In one embodiment, the pushing assembly 20 includes a handle 21, a transmission rod 22, and a push rod 23. The handle 21 is rotatably connected to the housing of the hot melt glue gun; the first end of the transmission rod 22 is connected to the handle 21; the first end of the push rod 23 is connected to the second end of the transmission rod 22, and the second end of the push rod 23 is connected to the clamping unit 10. When the handle 21 is manually pressed, the handle 21 rotates, causing the transmission rod 22 to move. The transmission rod 22 then causes the push rod 23 to move forward, which in turn pushes the clamping unit 10 towards the glue delivery position. Through the conversion between the transmission rod 22 and the push rod 23, the force of the handle 21 rotation is converted into a force pushing towards the glue delivery position, thereby causing the clamping unit 10 to move along the slide 30.

[0051] The push rod 23 and the clamping unit 10 are movably connected by a rotating shaft, and the length of the rotating shaft is greater than the sum of the widths of the clamping unit 10 and the push rod 23. During the movement of the clamping unit 10 from its initial position to its glue-feeding position, the rotating shaft will not disengage from the push rod 23 and the clamping unit 10.

[0052] The transmission rod 22 extends outward to form a first connector 221 and a second connector 222. The first connector 221 is connected to the handle 21, and the second connector 222 is connected to the push rod 23. The first connector 221 includes a first head 2211, a first connecting part 2212, and a limiting structure 2213 located on the connecting part. The diameter of the first head 2211 is larger than that of the first connecting part 2212. The first connector 221 has a first opening 2214 that passes through the first head 2211 and the first connecting part 2212. The first opening 2214 causes the first head 2211 to move closer to the first opening 2214 and become smaller under the action of external force. The hole on the handle 21 can directly pass through the first head 2211. After the hole on the handle 21 is passed through, the first head 2211 automatically returns to its original position and is locked on the other side of the hole on the handle 21. The handle 21 can be directly connected to the transmission rod 22 through the first connector 221.

[0053] The second connector 222 includes a second head 2221 and a second connecting portion 2222. The diameter of the second head 2221 is larger than that of the second connecting portion 2222. The second connector 222 is provided with a second opening 2223, which passes through the second head 2221 and the second connecting portion 2222. The second opening 2223 causes the second head 2221 to move closer to the second opening 2223 and become smaller under the action of external force. The hole on the push rod 23 can directly pass through the second head 2221. After the hole on the push rod 23 is passed through, the second head 2221 automatically returns to its original position and is locked on the other side of the hole on the push rod 23. The push rod 23 can be directly connected to the transmission rod 22 through the second connector 222.

[0054] The push rod 23 has an arc-shaped structure, which can better convert the force of rotating the handle 21 into a force that pushes towards the glue feeding position.

[0055] In one embodiment, a reset component 50 is further included. The reset component 50 is connected to the push component 20, and the reset component 50 drives the push component 20 to reset under its own elastic force. During the process of the push component 20 driving the clamping unit 10 to move from the initial position to the glue feeding position, the reset component 50 gradually compresses and stores energy. After one glue feeding cycle is completed, the energy stored in the reset component 50 is released, the reset component 50 returns to its original position, drives the push component 20 to reset, and then drives the clamping unit 10 to move from the glue feeding position back to the initial position.

[0056] A hot melt glue gun includes a glue gun housing and a metering and continuous glue feeding structure as described in any of the above embodiments, disposed on the glue gun housing. The glue gun housing has a glue feeding channel, which guides the glue stick 60 from the inlet to the heating position. The metering and continuous glue feeding structure is disposed between the glue feeding channels, and the clamping unit 10 is located on the same straight line as the glue feeding channels. The metering and continuous glue feeding structure can continuously and stably deliver the glue stick 60, ensuring the smoothness and stability of the glue feeding process.

[0057] The glue gun housing includes a first housing and a second housing, which are fastened together.

[0058] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

[0059] The present utility model patent has been described above with reference to the accompanying drawings. Obviously, the implementation of the present utility model patent is not limited to the above-described manner. Any improvements made by adopting the inventive concept and technical solution of the present utility model patent, or the direct application of the inventive concept and technical solution of the present utility model patent to other occasions without modification, are all within the protection scope of the present utility model.

Claims

1. A constant and continuous adhesive feeding structure, characterized by, Be applied to hot melt glue gun, include: Clamping unit, the clamping unit is used for clamping glue stick, the clamping unit is not closed structure; Pushing assembly, the pushing assembly is connected with the clamping unit, and the pushing assembly drives the clamping unit to move between initial position and glue feeding position; Slide, two the slide is respectively arranged at the both sides of the clamping unit, the clamping unit slides along the slide, and the interval between two the slide gradually increases from the initial position to the glue feeding position; Limiting block, the limiting block is movably arranged at the glue feeding position of the slide.

2. A constant and continuous glue feeding structure as claimed in claim 1, wherein, The clamping unit includes clamping body and sliding part, the clamping body is not closed structure, and the opening of the clamping body is arranged between two sliding parts, and two sliding parts are respectively arranged at the both sides of the clamping body.

3. A constant and continuous glue feeding structure as claimed in claim 2, wherein, The side of the clamping body towards the glue feeding position is provided with an elastic part.

4. A constant and continuous glue feeding structure according to claim 1, 2 or 3, characterized in that, The pushing assembly includes: Handle, the handle is rotatably connected to the shell of hot melt glue gun; Transmission rod, the first end of the transmission rod is connected with the handle; Pushing rod, the first end of the pushing rod is connected with the second end of the transmission rod, and the second end of the pushing rod is connected with the clamping unit.

5. A constant and continuous glue feeding structure as claimed in claim 4, wherein, The pushing rod and the clamping unit are movably connected through the pivot, and the length of the pivot is greater than the width of the clamping unit and the pushing rod.

6. A constant and continuous gum delivery structure as claimed in claim 4, wherein, The transmission rod extends outward to form a first connector and a second connector; The first connector includes a first head, a first connecting part and a limiting structure on the connecting part, the diameter of the first head is greater than that of the first connecting part, a first opening is arranged on the first connector, and the first opening penetrates through the first head and the first connecting part; The second connector includes a second head and a second connecting part, the diameter of the second head is greater than that of the second connecting part, and a second opening is arranged on the second connector, and the second opening penetrates through the second head and the second connecting part.

7. A constant and continuous gum delivery structure as claimed in claim 6, wherein, The pushing rod is in arc structure.

8. A constant and continuous glue feeding structure as claimed in claim 1, 2, 3, 5 or 7, wherein, Further include reset assembly, the reset assembly is connected with the pushing assembly, and the reset assembly drives the pushing assembly to reset under the action of its elastic force.

9. A hot melt glue gun characterized by, The glue gun shell includes a first shell and a second shell, and the first shell and the second shell are connected by buckling.

10. The hot melt glue gun of claim 9, wherein, ​

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