Anti-curing dispensing mechanism and dispensing machine

Abstract

The anti-curing dispensing mechanism comprises a bottom plate, a glue extruding device and a glue discharging assembly, the glue extruding device comprises a glue conveying pipe and a glue extruding assembly, a heat dissipation base and a heat dissipation fan used for cooling the heat dissipation base are installed on the bottom plate, a heat exchange groove matched with the glue conveying pipe is formed in the heat dissipation base, and the glue discharging assembly is connected with the glue conveying pipe. At least part of the glue conveying pipe is attached and embedded into the heat exchange groove in the length direction in an extending mode. In the shutdown process, the air cylinder can be controlled through the glue stopping valve to block the glue stopping valve, contact between air and mixed glue in the glue conveying pipe is blocked, the heat dissipation base is continuously cooled through the heat dissipation fan, the heat dissipation base can continuously take away heat of the glue conveying pipe, and therefore the heat dissipation effect on the glue conveying pipe and the glue in the glue conveying pipe is achieved; therefore, the problem that the mixed glue in the glue conveying pipe is solidified and blocked can be effectively avoided, the replacement or dredging frequency of the glue conveying pipe is reduced, the processing efficiency is improved, and the processing cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of tooling equipment, and particularly relates to an anti-curing dispensing mechanism and a dispenser. Background Technique

[0002] A dispenser is a specialized automated machine for controlling fluids and dispensing or coating fluids onto the surface or inside of products.

[0003] In the case of a conventional dispenser during the shutdown condition, a small amount of glue will remain at the dispensing needle or the glue delivery tube. After contacting the air, it will quickly cure, resulting in blockage of the dispensing needle or the glue delivery tube, and it is necessary to frequently replace or dredge. Therefore, referring to the Chinese utility model patent with the publication number CN218982128U, by installing a glue stop valve at the dispensing needle, the problem of curing blockage can be solved to a certain extent.

[0004] However, for a multi-component dispenser, once the multi-component glue is mixed, it will not only quickly cure when encountering air, but also cure when the temperature rises. Therefore, simply adding a glue stop valve cannot effectively solve the problem of curing blockage of the glue delivery tube of the multi-component dispenser. Summary of the Utility Model

[0005] To solve the technical problem that the curing blockage of the glue delivery tube of the dispenser is also caused by the rising temperature, the utility model provides an anti-curing dispensing mechanism and a dispenser.

[0006] The technical solution is as follows:

[0007] The first aspect of the present application relates to an anti-curing dispensing mechanism, including a bottom plate, a glue extrusion device and a glue discharging assembly both installed on the bottom plate. The glue discharging assembly includes a glue discharging assembly bracket installed on the bottom plate, and a glue stop valve, a glue discharging needle and a glue stop valve control cylinder all installed on the glue discharging assembly bracket. The feeding end of the glue discharging needle is communicated with the discharging end of the glue stop valve. The glue stop valve control cylinder is used to control the glue stop valve to cut off or conduct. The glue extrusion device includes a glue delivery tube and a glue extrusion assembly for extruding glue to the feeding end of the glue delivery tube. The discharging end of the glue delivery tube is communicated with the feeding end of the glue stop valve. A heat dissipation seat and a heat dissipation fan for cooling the heat dissipation seat are installed on the bottom plate. A heat exchange groove adapted to the glue delivery tube is provided on the heat dissipation seat, and at least part of the glue delivery tube is fittingly embedded in the heat exchange groove along the length direction.

[0008] With the above anti-curing dispensing mechanism, when the machine stops, not only can the air cylinder of the glue-stop valve be controlled to block the glue-stop valve, blocking the contact between air and the well-mixed glue in the glue delivery pipe, but also the heat dissipation fan continuously cools the heat dissipation seat. The heat dissipation seat can continuously take away the heat of the glue delivery pipe, thereby playing a role in dissipating heat from the glue delivery pipe and the glue inside it. Therefore, it can effectively avoid the problem of curing and blocking of the well-mixed glue in the glue delivery pipe, reduce the frequency of replacement or dredging of the glue delivery pipe, improve the processing efficiency, and reduce the processing cost.

[0009] In some embodiments, a ventilation opening is formed in the bottom plate, and the heat dissipation seat and the heat dissipation fan are respectively installed on both sides of the ventilation opening. The heat dissipation seat includes a heat dissipation seat body and heat dissipation fins fittingly disposed on the side of the heat dissipation seat body close to the bottom plate. The heat exchange groove is recessed on the side of the heat dissipation seat body away from the heat dissipation fins. The heat dissipation fins are fixedly connected to the bottom plate, and the air outlet direction of the heat dissipation fan faces the heat dissipation fins.

[0010] In some embodiments, the heat dissipation fins include a fin substrate fittingly installed on the side of the heat dissipation seat body away from the heat dissipation fins and a plurality of fins integrally formed side by side on the side of the fin substrate away from the heat dissipation seat body. The outer edges of the fins are fixed to the bottom plate. A heat conduction seat adapted to the heat exchange groove is integrally formed on the side of the fin substrate away from the fins. The heat conduction seat protrudes into the heat exchange groove, and a glue pipe card slot adapted to the glue delivery pipe is recessed on its outer end face. At least part of the glue delivery pipe is fittingly embedded in the glue pipe card slot along the length direction.

[0011] In some embodiments, the glue extrusion assembly includes a glue extrusion assembly bracket, a glue nozzle, a glue extrusion cylinder, and at least one glue cylinder all installed on the glue extrusion assembly bracket. The discharge ends of the glue cylinders are communicated with the feed end of the glue delivery pipe through the glue nozzle. The glue extrusion cylinder has piston rods respectively corresponding to the glue cylinders one by one, and the piston rods of the glue extrusion cylinder are respectively inserted into the feed ends of the corresponding glue cylinders, so as to be able to extrude the glue in the glue cylinders into the glue delivery pipe through the glue nozzle.

[0012] In some embodiments, a main channel and a glue inlet channel are formed in the glue-stop valve. The main channel runs through the glue-stop valve in a straight line. The end of the main channel away from the glue-stop valve control cylinder is the discharge end of the glue-stop valve. The feed end of the glue inlet channel is communicated with the discharge end of the glue delivery pipe, and the discharge end of the glue inlet channel is communicated with the middle of the main channel. A plug capable of sliding along it is provided at the end of the main channel close to the glue-stop valve control cylinder. The plug can cut off or conduct the discharge end of the glue inlet channel under the drive of the piston rod of the glue-stop valve control cylinder.

[0013] The second aspect of the present application relates to a dispensing machine, which includes a workbench, an electric translation stage, and the above-mentioned anti-curing dispensing mechanism. The electric translation stage includes a translation stage main body and a gantry arranged horizontally above the translation stage main body. X-direction electric linear modules for driving the gantry to move in the X direction are provided on both sides of the translation stage main body. A Y-direction electric linear module extending in the Y direction is installed on the cross beam of the gantry. A Z-direction electric linear module extending in the Z direction is installed on the slide table of the Y-direction electric linear module. The bottom plate is vertically installed on the slide table of the Z-direction electric linear module. A product positioning plate is installed on the top of the translation stage main body.

[0014] With the above dispensing machine, high-precision three-dimensional adjustment of the anti-curing dispensing mechanism can be performed, and the dispensing operation can be carried out flexibly, improving the versatility of the dispensing machine.

[0015] In some embodiments, an electric X-direction linear module extending in the X direction is installed on the top of the translation stage main body, and the product positioning plate is installed on the slide table of the electric X-direction linear module. Description of the Drawings

[0016] Figure 1 is a schematic structural diagram of the dispensing machine;

[0017] Figure 2 is a schematic structural diagram of the anti-curing dispensing mechanism from one perspective;

[0018] Figure 3 is a schematic structural diagram of the anti-curing dispensing mechanism from another perspective;

[0019] Figure 4 is a schematic structural diagram of the glue stop valve;

[0020] Figure 5 is a schematic structural diagram of the bottom plate. Detailed Embodiments

[0021] The following further describes the present invention in conjunction with embodiments and drawings.

[0022] Embodiment 1:

[0023] As Figures 2 - 5 shown, an anti-curing dispensing mechanism includes a bottom plate 1, a glue extrusion device 2, and a glue outlet assembly 3. Among them, the glue extrusion device 2 and the glue outlet assembly 3 are both installed on the bottom plate 1.

[0024] The glue outlet assembly 3 includes a glue outlet assembly bracket 31, a glue stop valve 32, a glue outlet needle 33, and a glue stop valve control cylinder 34. Among them, the glue outlet assembly bracket 31 is installed on the bottom plate 1, and the glue stop valve 32, the glue outlet needle 33, and the glue stop valve control cylinder 34 are all installed on the glue outlet assembly bracket 31.

[0025] In this embodiment, a plurality of screw holes 12 are formed in the bottom plate 1, and the glue discharging assembly bracket 31 is locked by screws on some of the screw holes 12, which is simple and reliable. Moreover, due to the large number of screw holes 12 on the bottom plate 1, the installation position of the glue discharging assembly bracket 31 can be adjusted by matching and installing with different screw holes 12, with high flexibility.

[0026] Please refer to Figure 2 and Figure 4 , the feeding end of the glue discharging needle 33 is communicated with the discharging end of the glue stopping valve 32, and the glue stopping valve control cylinder 34 is used to control the glue stopping valve 32 to cut off or conduct, that is: by the telescopic movement of the piston rod of the glue stopping valve control cylinder 34, the glue stopping valve 32 can be conducted or cut off.

[0027] In this embodiment, the glue extrusion device 2 includes a glue conveying pipe 22 and a glue extrusion assembly for extruding glue into the feeding end of the glue conveying pipe 22. The discharging end of the glue conveying pipe 22 is communicated with the feeding end of the glue stopping valve 32. A heat dissipation seat 4 and a heat dissipation fan 5 for cooling the heat dissipation seat 4 are installed on the bottom plate 1. A heat exchange groove 411 adapted to the glue conveying pipe 22 is provided on the heat dissipation seat 4, and at least part of the glue conveying pipe 22 is fitted and embedded in the heat exchange groove 411 along the length direction, that is: the heat of the glue conveying pipe 22 can be guided to the heat dissipation seat 4.

[0028] Therefore, when the machine is stopped in this embodiment, not only can the glue stopping valve 32 be blocked by the glue stopping valve control cylinder 34 to block the contact between air and the mixed glue in the glue conveying pipe 22, but also the heat dissipation fan 5 continuously cools the heat dissipation seat 4, and the heat dissipation seat 4 can continuously take away the heat of the glue conveying pipe 22, so as to play a role in dissipating heat from the glue conveying pipe 22 and the glue inside it, thereby effectively avoiding the problem of curing and blocking of the mixed glue in the glue conveying pipe 22, reducing the replacement or dredging frequency of the glue conveying pipe 22, improving the processing efficiency, and reducing the processing cost.

[0029] Please refer to Figure 2 , Figure 4 and Figure 5 , a ventilation opening 11 is formed in the bottom plate 1, and the heat dissipation seat 4 and the heat dissipation fan 5 are respectively installed on both sides of the ventilation opening 11, thereby effectively reducing the thickness on one side of the heat dissipation seat 4 and facilitating the installation and arrangement of the glue conveying pipe 22.

[0030] In this embodiment, the heat dissipation seat 4 includes a heat dissipation seat main body 41 and heat dissipation fins 42 disposed closely on the side of the heat dissipation seat main body 41 close to the bottom plate 1. The heat exchange groove 411 is recessed on the side of the heat dissipation seat main body 41 away from the heat dissipation fins 42. The heat dissipation fins 42 are fixedly connected to the bottom plate 1, and the air outlet direction of the heat dissipation fan 5 faces the heat dissipation fins 42. By providing the heat dissipation fins 42, not only the heat dissipation efficiency is effectively improved, but also the structure is stable and reliable and easy to process.

[0031] Among them, the material of the heat dissipation fin 42 can be aluminum or copper, which has high heat conduction efficiency.

[0032] Furthermore, the heat dissipation fin 42 includes a fin substrate 421 that is fittingly mounted on the side of the heat dissipation seat main body 41 away from the heat dissipation fin 42, and multiple fins 422 that are integrally formed side by side on the side of the fin substrate 421 away from the heat dissipation seat main body 41. The outer edges of the fins 422 are fixed on the bottom plate 1. A heat conduction seat 423 that is adapted to the heat exchange groove 411 is integrally formed on the side of the fin substrate 421 away from the fins 422. The heat conduction seat 423 protrudes into the heat exchange groove 411, and a rubber tube card slot 423a that is adapted to the glue delivery tube 22 is recessed on its outer end face. At least part of the glue delivery tube 22 is fittingly embedded in the rubber tube card slot 423a along the length direction. Through such a design, the glue delivery tube 22 is in direct contact with a part of the heat dissipation fin 42 (i.e., the heat conduction seat 423), improving the heat conduction efficiency.

[0033] Furthermore, the glue outlet assembly bracket 31 includes a bracket main body 311 and an adjustment bracket 312 that can be telescoped along the bracket main body 311. The cylinder body of the glue stop valve control cylinder 34 is installed on the bracket main body 311, and the glue stop valve 32 is installed on the adjustment bracket 312. The bracket main body 311 and the adjustment bracket 312 are locked or unlocked through a locking bolt 313, that is: by tightening the locking bolt 313, the relative positions of the bracket main body 311 and the adjustment bracket 312 can be locked; by loosening the locking bolt 313, the adjustment bracket 312 can be telescoped along the bracket main body 311, which is simple, reliable, and easy to operate, so that the relative positions of the bracket main body 311 and the adjustment bracket 312 can be adjusted flexibly.

[0034] Please refer to Figure 2 , the glue extrusion assembly includes a glue extrusion assembly bracket 21, a glue nozzle 25, a glue extrusion cylinder 24, and at least one glue cylinder 23. The glue nozzle 25, the glue extrusion cylinder 24, and each glue cylinder 23 are all installed on the glue extrusion assembly bracket 21. In this embodiment, two glue cylinders 23 are used. The discharge ends of the glue cylinders 23 are communicated with the feed end of the glue delivery tube 22 through the glue nozzle 25. The glue extrusion cylinder 24 has piston rods that respectively correspond to the glue cylinders 23 one by one, that is: the glue extrusion cylinder 24 in this embodiment has two piston rods, and the two piston rods expand and contract synchronously. Each piston rod of the glue extrusion cylinder 24 is inserted into the feed end of the corresponding glue cylinder 23, so that by controlling the expansion and contraction of the piston rods, the glue in each glue cylinder 23 can be extruded into the glue delivery tube 22 through the glue nozzle 25. The structure is simple and reliable, and easy to assemble.

[0035] Furthermore, in order to facilitate the replacement of the glue cylinder 23, a cover 26 that can be opened or closed is installed on the glue extrusion assembly bracket 21. When the glue in the glue cylinder 23 is used up, first make the glue extrusion cylinder 24 control each piston rod to withdraw from the glue cylinder 23, then open the cover 26, take out the empty glue cylinder 23, install a new glue cylinder 23, and finally close the cover 26.

[0036] Please refer to Figure 2 and Figure 4 , a glue stopper valve 32 is provided with a main channel 321 and a glue inlet channel 322. The main channel 321 runs through the glue stopper valve 32 along a straight line. One end of the main channel 321 away from the glue stopper valve control cylinder 34 is the discharge end of the glue stopper valve 32. The feed end of the glue inlet channel 322 is communicated with the discharge end of the glue conveying pipe 22, and the discharge end of the glue inlet channel 322 is communicated with the middle part of the main channel 321. A plug 323 capable of sliding along it is provided at one end of the main channel 321 close to the glue stopper valve control cylinder 34. The plug 323 can cut off or conduct the discharge end of the glue inlet channel 322 under the drive of the piston rod of the glue stopper valve control cylinder 34, that is: when the plug 323 moves to the discharge end of the glue inlet channel 322 in the main channel 321, the connection between the glue inlet channel 322 and the main channel 321 can be cut off; when the plug 323 retracts towards the direction close to the glue stopper valve control cylinder 34 and moves away from the discharge end of the glue inlet channel 322, the glue inlet channel 322 is communicated with the main channel 321.

[0037] In this embodiment, the stroke of the plug 323 can be designed to be equal to or longer than the length of the main channel 321, so that the main channel 321 can be cleaned by the back-and-forth movement of the plug 323.

[0038] Furthermore, the installation method of the glue extrusion assembly bracket 21 is the same as that of the glue discharge assembly bracket 31, that is: the glue extrusion assembly bracket 21 is locked on some screw holes 12 by screws. Since there are many screw holes 12 on the bottom plate 1, the installation position of the glue extrusion assembly bracket 21 can be adjusted by matching with different screw holes 12, with high flexibility.

[0039] Embodiment 2:

[0040] Please refer to Figure 1 , a dispensing machine, including a workbench 6, an electric translation table 7 and the anti-curing dispensing mechanism of Embodiment 1. The electric translation table 7 includes a translation table main body 71 and a gantry 72 horizontally arranged above the translation table main body 71. X-direction electric linear modules 73 for driving the gantry 72 to move along the X direction are provided on both sides of the translation table main body 71. A Y-direction electric linear module 74 extending along the Y direction is installed on the cross beam of the gantry 72. A Z-direction electric linear module 75 extending along the Z direction is installed on the slide of the Y-direction electric linear module 74. The bottom plate 1 is vertically installed on the slide of the Z-direction electric linear module 75. A product positioning plate 76 is installed on the top of the translation table main body 71. This embodiment can perform high-precision three-dimensional adjustment on the anti-curing dispensing mechanism, flexibly perform dispensing operations, and improve the versatility of the dispensing machine.

[0041] Further, an electric X-direction linear module 77 extending in the X direction is installed on the top of the translation stage main body 71, and the product positioning plate 76 is installed on the slide table of the electric X-direction linear module 77, so that the position of the product positioning plate 76 can be adjusted in the X direction, further improving the flexibility of dispensing.

[0042] In this embodiment, feet 61 capable of lifting adjustment are provided at the bottom of the workbench 6, so that the height of the workbench 6 can be adaptively adjusted.

[0043] Finally, it should be noted that the above description is only the preferred embodiment of the present invention. Under the inspiration of the present invention, those of ordinary skill in the art can make various similar representations without violating the purpose and claims of the present invention, and such transformations all fall within the protection scope of the present invention.

Claims

1. A non-curing dispensing mechanism, comprising a bottom plate (1), a glue extrusion device (2) and a glue discharging assembly (3) both installed on the bottom plate (1). The glue discharging assembly (3) includes a glue discharging assembly bracket (31) installed on the bottom plate (1), a glue stop valve (32), a glue discharging needle (33) and a glue stop valve control cylinder (34) all installed on the glue discharging assembly bracket (31). The feeding end of the glue discharging needle (33) is communicated with the discharging end of the glue stop valve (32). The glue stop valve control cylinder (34) is used to control the glue stop valve (32) to cut off or conduct. The glue extrusion device (2) includes a glue conveying pipe (22) and a glue extrusion assembly for extruding glue into the feeding end of the glue conveying pipe (22). The discharging end of the glue conveying pipe (22) is communicated with the feeding end of the glue stop valve (32), and it is characterized in that: A heat dissipation base (4) and a heat dissipation fan (5) for cooling the heat dissipation base (4) are installed on the bottom plate (1). A heat exchange groove (411) adapted to the glue delivery pipe (22) is provided on the heat dissipation base (4), and at least a part of the glue delivery pipe (22) is fitted and embedded in the heat exchange groove (411) along the length direction.

2. The anti-curing dispensing mechanism according to claim 1, wherein: A ventilation opening (11) is formed on the bottom plate (1). The heat dissipation base (4) and the heat dissipation fan (5) are respectively installed on both sides of the ventilation opening (11). The heat dissipation base (4) includes a heat dissipation base body (41) and heat dissipation fins (42) disposed closely on the side of the heat dissipation base body (41) close to the bottom plate (1). The heat exchange groove (411) is recessed on the side of the heat dissipation base body (41) away from the heat dissipation fins (42). The heat dissipation fins (42) are fixedly connected to the bottom plate (1), and the air outlet direction of the heat dissipation fan (5) faces the heat dissipation fins (42).

3. The anti-curing dispensing mechanism according to claim 2, characterized in that: The heat dissipation fins (42) include a fin substrate (421) installed closely on the side of the heat dissipation base body (41) away from the heat dissipation fins (42) and a plurality of fins (422) integrally formed side by side on the side of the fin substrate (421) away from the heat dissipation base body (41). The outer edges of the fins (422) are fixed to the bottom plate (1). A heat conduction seat (423) adapted to the heat exchange groove (411) is integrally formed on the side of the fin substrate (421) away from the fins (422). The heat conduction seat (423) protrudes into the heat exchange groove (411), and a glue pipe clamping groove (423a) adapted to the glue delivery pipe (22) is recessed on its outer end face. At least a part of the glue delivery pipe (22) is fitted and embedded in the glue pipe clamping groove (423a) along the length direction.

4. The anti-curing dispensing mechanism according to claim 1, wherein: The glue extrusion assembly includes a glue extrusion assembly bracket (21), a glue nozzle (25), a glue extrusion cylinder (24) and at least one glue cylinder (23) all installed on the glue extrusion assembly bracket (21). The discharge end of each glue cylinder (23) is communicated with the feed end of the glue delivery pipe (22) through the glue nozzle (25). The glue extrusion cylinder (24) has piston rods respectively corresponding to the glue cylinders (23). The piston rods of the glue extrusion cylinder (24) are respectively inserted into the feed ends of the corresponding glue cylinders (23), so as to be able to extrude the glue in each glue cylinder (23) into the glue delivery pipe (22) through the glue nozzle (25).

5. The anti-curing dispensing mechanism according to claim 1, characterized in that: A main channel (321) and a glue inlet channel (322) are formed on the glue stop valve (32). The main channel (321) penetrates through the glue stop valve (32) along a straight line. The end of the main channel (321) away from the glue stop valve control cylinder (34) is the discharge end of the glue stop valve (32). The feed end of the glue inlet channel (322) is communicated with the discharge end of the glue delivery pipe (22), and the discharge end of the glue inlet channel (322) is communicated with the middle of the main channel (321). A plug (323) capable of sliding along it is provided at the end of the main channel (321) close to the glue stop valve control cylinder (34). The plug (323) can cut off or conduct the discharge end of the glue inlet channel (322) driven by the piston rod of the glue stop valve control cylinder (34).

6. A dispensing machine, characterized in that: It includes a workbench (6), an electric translation stage (7), and the anti-curing dispensing mechanism according to any one of claims 1-5. The electric translation stage (7) includes a translation stage main body (71) and a gantry (72) horizontally arranged above the translation stage main body (71). X-direction electric linear modules (73) for driving the gantry (72) to move in the X direction are provided on both sides of the translation stage main body (71). A Y-direction electric linear module (74) extending in the Y direction is installed on the cross beam of the gantry (72). A Z-direction electric linear module (75) extending in the Z direction is installed on the slide of the Y-direction electric linear module (74). The bottom plate (1) is vertically installed on the slide of the Z-direction electric linear module (75). A product positioning plate (76) is installed on the top of the translation stage main body (71).

7. The dispensing machine according to claim 6, wherein: An electric X-direction linear module (77) extending in the X direction is installed on the top of the translation stage main body (71). The product positioning plate (76) is installed on the slide of the electric X-direction linear module (77).

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