A hot melt applicator with quick mount structure

Abstract

The utility model belongs to hot melt ware technical field especially relates to a kind of hot melt ware with quick-mounting structure, including handle and heating block, heat insulating device is arranged between handle and heating block, heat insulating device is respectively detachably connected with handle and heating block, the handle includes detachably connected left casing and right casing, left casing and right casing form mounting cavity between, heat insulating device includes the mounting portion connected with handle, mounting portion extends into mounting cavity, and first positioning part is provided on mounting portion, second positioning part that is adapted with first positioning part is provided on mounting cavity side wall, first positioning part and second positioning part cooperate now mounting portion and the relative motion of mounting cavity, and make handle and heat insulating device relative fixation;Control left casing and right casing relative disassembly, first positioning part can be separated from second positioning part, and make handle and heat insulating device relative disassembly, the utility model aims at providing a kind of hot melt ware with quick-mounting structure, which is stable and easy to assemble and disassemble.

Description

Technical Field

[0001] This utility model belongs to the field of hot melt equipment technology, and specifically relates to a hot melt equipment with a quick-installation structure. Background Technology

[0002] A hot melt machine is a professional welding tool used to heat and melt thermoplastic pipes and molds for connection. The working principle of a hot melt machine is mainly to transfer heat to the welding surfaces of thermoplastic pipes and molds through electrothermal methods, causing the surfaces to melt, and then the two molten surfaces are fused, solidified, and joined together.

[0003] Most hot melt machines include a heating block, a heat dissipation and insulation device, and a handle connected in sequence. For example, Chinese Utility Model Patent CN 202120321964.1 discloses a hot melt machine that is easy to assemble, which includes a heating plate, a heat dissipation plate, an insulation plate, a temperature control device, and a handle. The rear end of the heating plate is connected to the front end of the heat dissipation plate, and the rear end of the heat dissipation plate is connected to the front end of the insulation plate. The rear end of the insulation plate is engaged with the front end of the handle through a snap-fit ​​protrusion provided at the rear end of the insulation plate. The temperature control device is disposed in the handle and is electrically connected to the heating plate.

[0004] As can be seen from the accompanying drawings, the heating plate, heat dissipation plate, heat insulation plate and handle of the above-mentioned hot melter are detachably connected in sequence. During the assembly and disassembly process, they need to be disassembled and installed in sequence, which is inconvenient for the quick assembly and disassembly of the hot melter. Summary of the Invention

[0005] In order to overcome the defects in the prior art, the purpose of this utility model is to provide a hot melt machine with a quick-installation structure that is stable to install and easy to assemble and disassemble.

[0006] The purpose of this utility model is achieved as follows:

[0007] A quick-release heat exchanger includes a handle and a heating block, with a heat insulation device disposed between the handle and the heating block. The heat insulation device is detachably connected to both the handle and the heating block. The handle includes a detachably connected left shell and a right shell, forming a mounting cavity between the left shell and the right shell. The heat insulation device includes a mounting part connected to the handle, extending into the mounting cavity, and having a first positioning part on the mounting part. A second positioning part adapted to the first positioning part is disposed on the side wall of the mounting cavity. The first positioning part and the second positioning part cooperate to allow relative movement between the mounting part and the mounting cavity, and to fix the handle and the heat insulation device relative to each other.

[0008] The control allows the left and right housings to be disassembled relative to each other, the first positioning part to be detached from the second positioning part, and the handle to be disassembled relative to the heat insulation device.

[0009] The present invention is further configured such that: the first positioning part is a positioning groove provided on the outer periphery of the mounting part, and the second positioning part is a positioning protrusion extending into the mounting cavity; the left shell and the right shell are connected and cooperated to keep the positioning protrusion connected to the positioning groove and to prevent the mounting part from moving in the mounting cavity.

[0010] The present invention is further configured such that: an auxiliary positioning block is provided in the positioning groove, and an auxiliary positioning groove adapted to the auxiliary positioning block is provided on the positioning protrusion.

[0011] The present invention is further configured such that: the mounting cavity is provided with a mounting end face at one end near the heat insulation device, the mounting end face abuts against the heat insulation device, the mounting cavity forms a mounting opening on the mounting end face, the heat insulation device passes through the mounting opening into the mounting cavity, the second positioning part includes the outer wall of the mounting opening, the mounting opening passes into the positioning groove and restricts the relative movement between the mounting part and the mounting opening.

[0012] The present invention is further configured such that: the second positioning part includes a reinforcing flange disposed in the mounting cavity, the reinforcing flange is disposed on one side of the mounting end face, and the reinforcing flange and the mounting opening can respectively abut against the opposite side walls of the positioning groove, thereby restricting the relative movement of the mounting part and the mounting opening.

[0013] The present invention is further configured such that: the reinforcing flange and the mounting end face are spaced apart, and a connecting flange is provided between the reinforcing flange and the mounting end face, and the connecting flange is connected to the reinforcing flange and the mounting end face respectively.

[0014] The present invention is further configured such that: a plurality of connecting posts are provided in the mounting cavity, at least two connecting posts are provided on the outer periphery of the second positioning part, the connecting posts are provided with connecting holes, the fasteners respectively cooperate with the connecting holes on the left shell and the right shell to fix the left shell and the right shell relatively, and to tightly connect the first positioning part and the second positioning part.

[0015] The present invention is further configured such that: the second positioning part extends toward the connecting post and connects with the connecting post.

[0016] The present invention is further configured such that: the heat insulation device includes a detachably connected metal heat sink and a heat insulation plate, the metal heat sink and the heating plate are detachably connected, and the mounting part is disposed on the heat insulation plate and detachably connected to the handle.

[0017] The present invention is further configured such that: the metal heat sink and the heat insulation plate are connected by bolts and nuts, the heat insulation plate is provided with a fixing hole for installing the nut, and a connecting hole is provided on one side of the fixing hole. The bolt passes through the metal heat sink and the connecting hole and is connected to the nut in the fixing hole; the fixing hole is provided on the handle side, so that when the handle is connected to the heat insulation plate, the handle can prevent the nut from coming off the fixing hole.

[0018] The advantages of this utility model compared to the prior art are:

[0019] 1. In this utility model, when the left and right shells are fixed relative to each other, the mounting part passes through the mounting cavity, and the first positioning part and the second positioning part are engaged. When the left and right shells are disassembled relative to each other, the first positioning part can be disengaged from the second positioning part. The heat insulation device and the handle do not need to be connected by separate fasteners, which facilitates the quick assembly and disassembly of the handle and the heat insulation device, and facilitates the production and disassembly and maintenance of the heat melt. In addition, during the use of this structure, the user will grip the left and right shells at the same time, so the connection between the left and right shells is not easy to loosen, which is conducive to the stable connection between the handle and the heat insulation device and avoids the connection between the handle and the heat insulation device becoming loose during use.

[0020] 2. The positioning groove and positioning protrusion in this utility model have a simple structure, which is convenient for production and processing. The structure facilitates the stable connection between the grip and the heat insulation device. The setting of the auxiliary positioning block and auxiliary positioning groove is conducive to further positioning the connection between the grip and the heat insulation device, which helps to improve the stability of the connection between the grip and the heat insulation device, and improves the reliability and durability of the connection structure between the grip and the heat insulation device.

[0021] 3. In this utility model, the handle and the heat insulation device are positioned and connected by the mounting port and the positioning groove. This structure simplifies the structure of the left and right shells, facilitates the assembly and production of the handle, and allows the mounting end face to abut against the heat insulation device, thus promoting stable installation. The reinforced flange enhances the connection strength between the handle and the heat insulation device, preventing damage to the connection point. This structure also helps reduce the local thickness of the handle, minimizing deformation of the left and right shells during injection molding, and improving the product qualification rate. The connecting flange also enhances the structural strength of the reinforced flange and the mounting end face, preventing damage to them during use.

[0022] 4. The connecting posts in this utility model facilitate the fixed connection between the left and right shells. Since at least two connecting posts are located on the outer periphery of the second positioning part, it is beneficial for the fasteners to drive the first and second positioning parts to connect tightly, reducing the loosening of the heat insulation device due to deformation of the left and right shells during use, and promoting a stable connection between the handle and the heat insulation device. Furthermore, since the second positioning part is connected to the connecting posts, it is beneficial to improve the structural strength of the second positioning part, avoid damage to the second positioning part under stress, and extend the service life of the hot melt.

[0023] 5. The metal heat sink and heat insulation plate in this utility model help to significantly reduce the temperature on the handle during use, avoid excessive temperature causing deformation and damage to the handle, and facilitate the stable connection between the handle and the heat insulation device. Since the fixing hole is located on one side of the handle, the bolt passes through the metal heat sink and the connecting hole and is connected to the nut in the fixing hole. During use, the metal heat sink can be removed without disassembling the heat insulation plate from the handle, which facilitates the assembly, production, disassembly and maintenance of the hot melt machine. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of this utility model;

[0025] Figure 2 This is an exploded view of the present invention;

[0026] Figure 3 This is one of the partial cross-sectional views of the connection structure between the heat insulation device and the handle in this utility model;

[0027] Figure 4 This is a second partial cross-sectional view of the connection structure between the heat insulation device and the handle in this utility model;

[0028] Figure 5 This is a schematic diagram of the structure of the left shell in this utility model;

[0029] Figure 6 This is a schematic diagram of the structure of the metal heat sink in this utility model;

[0030] Figure 7 This is one of the structural schematic diagrams of the heat insulation plate in this utility model;

[0031] Figure 8 This is the second schematic diagram of the heat insulation plate in this utility model.

[0032] The labels in the diagram have the following meanings: 1-Grip; 11-Left shell; 12-Right shell; 13-Mounting cavity; 14-Mounting end face; 15-Second positioning part; 16-Connecting post; 151-Mounting port; 152-Reinforcing flange; 153-Connecting flange; 154-Auxiliary positioning groove; 2-Heating block; 3-Heat insulation device; 31-Metal heat sink; 32-Heat insulation plate; 311-Through hole; 312-Third positioning part; 321-First positioning part; 322-Auxiliary positioning block; 323-Fixing hole; 324-Connecting hole; 325-Fourth positioning part; 4-Control circuit. Detailed Implementation

[0033] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0034] See Figures 1 to 8As shown, a quick-release heat exchanger includes a handle 1 and a heating block 2. A heat insulation device 3 is provided between the handle 1 and the heating block 2. The heat insulation device 3 is detachably connected to both the handle 1 and the heating block 2. The handle 1 includes a detachably connected left shell 11 and a right shell 12, forming a mounting cavity 13 between the left shell 11 and the right shell 12. A control circuit 4 for controlling the heating block 2 is provided in the mounting cavity 13. The heat insulation device 3 includes a mounting part connected to the handle 1, extending into the mounting cavity 13. A first positioning part 321 is provided on the mounting part, and a second positioning part 15 adapted to the first positioning part 321 is provided on the side wall of the mounting cavity 13. The first positioning part 321 and the second positioning part 15 cooperate to control the relative movement of the mounting part and the mounting cavity 13, and to fix the handle 1 and the heat insulation device 3 relative to each other. When the left shell 11 and the right shell 12 are detached relative to each other, the first positioning part 321 can be disengaged from the second positioning part 15, and the handle 1 and the heat insulation device 3 can be detached relative to each other.

[0035] In the above structure, when the left shell 11 and the right shell 12 are relatively fixed, the mounting part passes through the mounting cavity 13, and the first positioning part 321 and the second positioning part 15 are engaged. When the left shell 11 and the right shell 12 are disassembled, the first positioning part 321 can be disengaged from the second positioning part 15. The heat insulation device 3 and the handle 1 do not require separate fasteners for connection, which facilitates the quick assembly and disassembly of the handle 1 and the heat insulation device 3, and facilitates the production, disassembly and maintenance of the heat melt. In addition, during use, the user will simultaneously grip the left shell 11 and the right shell 12, so the connection between the left shell 11 and the right shell 12 is not easy to loosen, which is conducive to the stable connection between the handle 1 and the heat insulation device 3 and avoids the connection between the handle 1 and the heat insulation device 3 becoming loose during use.

[0036] Preferably, the first positioning part 321 and the second positioning part 15 are mutually cooperating protrusion and groove structures. In this utility model, the first positioning part 321 is a positioning groove provided on the outer periphery of the mounting part, and the second positioning part 15 is a positioning protrusion extending into the mounting cavity 13. The left shell 11 and the right shell 12 are connected and cooperated to keep the positioning protrusion and the positioning groove connected, and to prevent the mounting part from moving in the mounting cavity 13. The structure of the positioning groove and the positioning protrusion is simple and convenient for production and processing. Moreover, this structure facilitates the stable connection between the handle 1 and the heat insulation device 3.

[0037] In this utility model, an auxiliary positioning block 322 is provided in the positioning groove, and an auxiliary positioning groove 154 adapted to the auxiliary positioning block 322 is provided on the positioning protrusion. The setting of the auxiliary positioning block 322 and the auxiliary positioning groove 154 is conducive to further positioning the connection between the grip 1 and the heat insulation device 3, which is conducive to improving the stability of the connection between the grip 1 and the heat insulation device 3, and improving the reliability and durability of the connection structure between the grip 1 and the heat insulation device 3.

[0038] The mounting cavity 13 is provided with a mounting end face 14 near the heat insulation device 3. The mounting end face 14 abuts against the heat insulation device 3. The mounting cavity 13 forms a mounting opening 151 on the mounting end face 14. The heat insulation device 3 passes through the mounting opening 151 into the mounting cavity 13. The second positioning part 15 includes the outer wall of the mounting opening 151. The mounting opening 151 passes into the positioning groove and restricts the relative movement between the mounting part and the mounting opening 151. In this structure, the grip 1 is positioned and connected to the heat insulation device 3 by the cooperation of the mounting opening 151 and the positioning groove. This helps to simplify the structure of the left shell 11 and the right shell 12, facilitates the assembly and production of the grip 1, and the mounting end face 14 can abut against the heat insulation device 3, which is conducive to the stable installation of the mounting end face 14.

[0039] In this utility model, the second positioning part 15 includes a reinforcing flange 152 disposed in the mounting cavity 13. The reinforcing flange 152 is disposed on one side of the mounting end face 14. The reinforcing flange 152 and the mounting opening 151 can respectively abut against the opposite side walls of the positioning groove, thereby restricting the relative movement between the mounting part and the mounting opening 151. The setting of the reinforcing flange 152 is beneficial to improving the connection strength between the grip 1 and the heat insulation device 3, avoiding damage to the connection position between the grip 1 and the heat insulation device 3. Moreover, this structure is beneficial to reducing the local thickness of the grip 1, reducing the deformation of the left shell 11 and the right shell 12 during injection molding, and improving the product qualification rate.

[0040] Preferably, the reinforcing flange 152 and the mounting end face 14 are spaced apart, and a connecting flange 153 is provided between the reinforcing flange 152 and the mounting end face 14. The connecting flange 153 is connected to the reinforcing flange 152 and the mounting end face 14 respectively. The provision of the connecting flange 153 is beneficial to improving the structural strength of the reinforcing flange 152 and the mounting end face 14, and avoiding damage to the reinforcing flange 152 and the mounting end face 14 during use.

[0041] The mounting cavity 13 is provided with a plurality of connecting posts 16, at least two of which are located on the outer periphery of the second positioning part 15. The connecting posts 16 are provided with connecting holes 324. Fasteners cooperate with the connecting holes 324 on the left housing 11 and the right housing 12 respectively, thereby fixing the left housing 11 and the right housing 12 relative to each other and tightly connecting the first positioning part 321 and the second positioning part 15. The setting of the connecting posts 16 facilitates the fixed connection of the left housing 11 and the right housing 12. Furthermore, since at least two connecting posts 16 are located on the outer periphery of the second positioning part 15, it is beneficial for the fasteners to drive the first positioning part 321 and the second positioning part 15 to connect tightly, reducing the loosening of the heat insulation device 3 caused by the deformation of the left housing 11 and the right housing 12 during use, and facilitating the stable connection between the handle 1 and the heat insulation device 3.

[0042] In this embodiment, the second positioning part 15 extends to the connecting post 16 and connects to the connecting post 16. This structure is beneficial to improving the structural strength of the second positioning part 15, avoiding damage to the second positioning part 15 under stress, and extending the service life of the hot melter.

[0043] In this utility model, the left shell 11 and the right shell 12 have similar structures. Therefore, although only the structure of the left shell 11 is shown in the accompanying drawings, those skilled in the art can implement the technical solution of this utility model based on the specification and the accompanying drawings.

[0044] The heat insulation device 3 includes a detachably connected metal heat sink 31 and a heat insulation plate 32. The metal heat sink 31 is detachably connected to the heating plate, and the mounting part is set on the heat insulation plate 32 and detachably connected to the handle 1. The setting of the metal heat sink 31 and the heat insulation plate 32 helps to significantly reduce the temperature on the handle 1 during use, avoid the handle 1 from deforming and being damaged due to excessive temperature, and facilitates the stable connection between the handle 1 and the heat insulation device 3.

[0045] In this invention, the metal heat sink 31 and the heat insulation plate 32 are connected by bolts and nuts. The heat insulation plate 32 is provided with a fixing hole 323 for installing the nut, and a connecting hole 324 is provided on one side of the fixing hole 323. The metal heat sink 31 is provided with a through hole 311. The bolt passes through the through hole 311 and the connecting hole 324 and is connected to the nut in the fixing hole 323. The fixing hole 323 is located on one side of the handle 1. When the handle 1 is connected to the heat insulation plate 32, the handle 1 can prevent the nut from coming off the fixing hole 323. During use, the metal heat sink 31 can be disassembled without disassembling the heat insulation plate 32 and the handle 1, which facilitates the assembly, production and disassembly maintenance of the hot melt machine.

[0046] In this embodiment, the metal heat sink 31 and the heat insulation plate 32 are respectively provided with a third positioning part 312 and a fourth positioning part 325 at opposite ends. The third positioning part 312 and the fourth positioning part 325 cooperate to position and connect the metal heat sink 31 and the heat insulation plate 32.

[0047] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Therefore, all equivalent changes made to the structure, shape, and principle of the present utility model should be covered within the scope of protection of the present utility model.

Claims

1. A hot melt applicator with quick mounting structure, comprising a handle (1) and a heating block (2), a heat insulation device (3) is arranged between the handle (1) and the heating block (2), the heat insulation device (3) is detachably connected with the handle (1) and the heating block (2) respectively, characterized in that: The grip (1) includes a detachably connected left shell (11) and a right shell (12), and a mounting cavity (13) is formed between the left shell (11) and the right shell (12). The heat insulation device (3) includes a mounting part connected to the grip (1), the mounting part extends into the mounting cavity (13), and a first positioning part (321) is provided on the mounting part. A second positioning part (15) adapted to the first positioning part (321) is provided on the side wall of the mounting cavity (13). The first positioning part (321) and the second positioning part (15) cooperate to enable the relative movement of the mounting part and the mounting cavity (13) and fix the grip (1) and the heat insulation device (3) relative to each other. Control the left housing (11) and the right housing (12) to disassemble relative to each other, the first positioning part (321) can be disassembled from the second positioning part (15), and the handle (1) can be disassembled relative to the heat insulation device (3).

2. A hot melt machine with a quick-assembly structure according to claim 1, characterized in that: The first positioning part (321) is a positioning groove provided on the outer periphery of the mounting part, and the second positioning part (15) is a positioning protrusion extending into the mounting cavity (13). The left housing (11) and the right housing (12) are connected and cooperated to keep the positioning protrusion connected to the positioning groove and prevent the mounting part from moving in the mounting cavity (13).

3. A hot melt machine with a quick-assembly structure according to claim 2, characterized in that: An auxiliary positioning block (322) is provided in the positioning groove, and an auxiliary positioning groove (154) adapted to the auxiliary positioning block (322) is provided on the positioning protrusion.

4. A hot melt machine with a quick-assembly structure according to claim 2 or 3, characterized in that: The mounting cavity (13) is provided with a mounting end face (14) near the heat insulation device (3). The mounting end face (14) abuts against the heat insulation device (3). The mounting cavity (13) forms a mounting opening (151) on the mounting end face (14). The heat insulation device (3) passes through the mounting opening (151) into the mounting cavity (13). The second positioning part (15) includes the outer wall of the mounting opening (151). The mounting opening (151) passes into the positioning groove and restricts the relative movement between the mounting part and the mounting opening (151).

5. A hot melt machine with a quick-assembly structure according to claim 4, characterized in that: The second positioning part (15) includes a reinforcing flange (152) disposed in the mounting cavity (13). The reinforcing flange (152) is disposed on one side of the mounting end face (14). The reinforcing flange (152) and the mounting opening (151) can respectively abut against the opposite sidewalls of the positioning groove, thereby restricting the relative movement between the mounting part and the mounting opening (151).

6. A hot melt machine with a quick-assembly structure according to claim 5, characterized in that: The reinforcing convex edge (152) and the mounting end face (14) are spaced apart, and a connecting convex edge (153) is provided between the reinforcing convex edge (152) and the mounting end face (14), and the connecting convex edge (153) is connected to the reinforcing convex edge (152) and the mounting end face (14) respectively.

7. A hot melt machine with a quick-assembly structure according to claim 1, 2, 3, 5, or 6, characterized in that: The mounting cavity (13) is provided with a plurality of connecting posts (16), at least two connecting posts (16) are provided on the outer periphery of the second positioning part (15), and the connecting posts (16) are provided with connecting holes (324). The fasteners cooperate with the connecting holes (324) on the left housing (11) and the right housing (12) respectively, and fix the left housing (11) and the right housing (12) relative to each other, and make the first positioning part (321) and the second positioning part (15) tightly connected.

8. A hot melt machine with a quick-assembly structure according to claim 7, characterized in that: The second positioning part (15) extends toward the connecting post (16) and connects to the connecting post (16).

9. A hot melt machine with a quick-assembly structure according to claim 1, 2, 3, 5, 6, or 8, characterized in that: The heat insulation device (3) includes a detachably connected metal heat sink (31) and a heat insulation plate (32). The metal heat sink (31) is detachably connected to the heating plate, and the mounting part is set on the heat insulation plate (32) and detachably connected to the handle (1).

10. A hot melt machine with a quick-assembly structure according to claim 9, characterized in that: The metal heat sink (31) and the heat insulation plate (32) are connected by bolts and nuts. The heat insulation plate (32) is provided with a fixing hole (323) for installing the nut. A connecting hole (324) is provided on one side of the fixing hole (323). The bolt passes through the metal heat sink (31) and the connecting hole (324) and is connected to the nut in the fixing hole (323). The fixing hole (323) is provided on one side of the handle (1). When the handle (1) is connected to the heat insulation plate (32), the handle (1) can prevent the nut from coming out of the fixing hole (323).

Images