High-fluidity hot melting point glue device

Abstract

The utility model discloses a high-fluidity hot melting point glue device which comprises a pressure plate connected with a movable plate through at least two vertical connecting rods, a glue dispensing valve provided with a glue inlet and a glue outlet, a glue taking cylinder sleeve of which the upper end is connected with a cylinder body part of an air cylinder, and a metering pump respectively connected with the glue taking cylinder sleeve and the glue dispensing valve, the outer side of the glue taking cylinder sleeve is sleeved with a heating module, a switching block is arranged below the metering pump, an L-shaped liquid inlet runner and an L-shaped liquid outlet runner are formed in the switching block, the L-shaped liquid inlet runner is communicated with a glue supply block, the L-shaped liquid outlet runner is communicated with a glue inlet in the glue dispensing valve through a connecting block, and the connecting block is connected with the glue taking cylinder sleeve. And at least one heating pipe is embedded in each of the adapter block, the glue supply block and the connecting block. According to the utility model, on the basis of realizing continuous and high-precision outward glue supply, the hot melt glue always has good flowability, so that the continuity of glue supply, the consistency of glue output and the precision and effect of glue dispensing are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of dispensing, in particular to a high-fluidity hot-melt adhesive dispensing device. Background Art

[0002] Hot-melt adhesives are melted by high-temperature heating. After melting, the hot-melt adhesives become a kind of liquid glue with fluidity. When dispensing hot-melt adhesives, it is necessary to heat first, and then use a plunger pump to supply the heated hot-melt adhesives. The plunger pump of the prior art needs to continuously and accurately supply the glue liquid outward. However, when supplying hot-melt adhesives, it is impossible to continuously heat the hot-melt adhesives, and it is impossible to ensure the fluidity of the hot-melt adhesives. Moreover, during the whole process of supplying glue to the dispensing valve, the glue cannot be heated in real time, making it difficult to ensure the fluidity of the hot-melt glue. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a high-fluidity hot-melt adhesive dispensing device, which can ensure that the hot-melt glue always has good fluidity on the basis of realizing continuous and accurate outward glue supply, so as to ensure the continuity of glue supply, the consistency of glue output, and the accuracy and effect of dispensing.

[0004] To solve the above technical problem, the technical solution adopted by the utility model is: a high-fluidity hot-melt adhesive dispensing device, including: a carrier plate for placing a hot-melt glue cylinder, at least two lifting cylinders vertically installed on the upper surface of the carrier plate, a movable plate connected to the upper ends of the piston rods of the lifting cylinders, a pressing plate connected to the movable plate through at least two vertical connecting rods, a dispensing valve and a metering pump provided with a glue inlet and a glue outlet channel, the liquid outlet of the metering pump is connected to the glue inlet of the dispensing valve, a cylinder that can move up and down with it is installed on the movable plate and above the pressing plate, a vertically extending glue-taking cylinder sleeve is arranged between the cylinder body of the cylinder and the pressing plate, a glue outlet through hole communicating the hot-melt glue cylinder with the inner cavity of the glue-taking cylinder sleeve is opened in the center of the upper surface of the pressing plate whose side surface is sealingly matched with the inner wall of the hot-melt glue cylinder, the liquid inlet of the metering pump is connected to the glue-taking cylinder sleeve;

[0005] The lower end of an upper connecting shaft vertically installed at the lower end of the piston rod of the cylinder penetrates into the glue-taking cylinder sleeve, a glue outlet is opened on the side wall of the upper end of the glue-taking cylinder sleeve whose lower end is communicated with the glue outlet through hole on the pressing plate, a sealing assembly is arranged between the glue outlet and above the glue-taking cylinder sleeve and between the glue-taking cylinder sleeve and the upper connecting shaft, the lower end of the upper connecting shaft whose upper end is connected to the piston rod of the cylinder is connected to a lower connecting shaft through a connecting rod, a glue-taking spoon that can extend into the glue outlet through hole of the pressing plate is installed on the vertically extending lower connecting shaft, and a heating module is sleeved outside the glue-taking cylinder sleeve and between the glue outlet and the pressing plate;

[0006] A connecting block is provided below the metering pump. An L-shaped liquid inlet channel and an L-shaped liquid outlet channel are respectively formed on the connecting block. The other end of the L-shaped liquid inlet channel, one end of which is communicated with the liquid inlet of the metering pump, extends to a side surface of the connecting block and is communicated with a glue supply channel on a glue supply block. The end of the glue supply channel far from the L-shaped liquid inlet channel is connected to the glue outlet on the glue taking cylinder sleeve through a glue supply pipe. The other end of the L-shaped liquid outlet channel, one end of which is communicated with the liquid outlet of the metering pump, extends to another side surface of the connecting block and is communicated with the glue inlet on the dispensing valve through a connecting block provided with a communication channel. At least one heating tube is respectively embedded and installed on the connecting block, the glue supply block and the connecting block.

[0007] The further improved solutions in the above technical solutions are as follows:

[0008] 1. In the above solution, the connecting block, the glue supply block and the connecting block are all metal blocks.

[0009] 2. In the above solution, the connecting block and the glue supply block are connected through a bottom substrate.

[0010] 3. In the above solution, one heating tube is embedded and installed on the connecting block and the connecting block, and one heating tube is respectively embedded and installed on both sides of the L-shaped liquid inlet channel and the L-shaped liquid outlet channel on the glue supply block.

[0011] 4. In the above solution, a protective cover is arranged outside the heating module.

[0012] 5. In the above solution, a support plate is installed on the lower surface of the cylinder block part, and the support plate and the two vertical connecting rods are respectively installed and connected through a connecting block.

[0013] Due to the application of the above technical solutions, the utility model has the following advantages compared with the prior art:

[0014] The utility model discloses a high-fluidity hot-melt glue dispensing device, wherein the lower end of an upper connecting shaft vertically installed at the lower end of a cylinder piston rod penetrates into a glue taking cylinder sleeve, a glue outlet is provided on the side wall of the upper end of the glue taking cylinder sleeve whose lower end is connected with a glue outlet through hole on a pressure plate, a sealing component is provided above the glue outlet and between the glue taking cylinder sleeve and the upper connecting shaft, the lower end of the upper connecting shaft connected with the piston rod of the cylinder at the upper end is connected with a lower connecting shaft through a connecting rod, a glue taking spoon which can be extended into the glue outlet through hole of the pressure plate is provided on the vertically extending lower connecting shaft, a heating module is provided on the outer side of the glue taking cylinder sleeve and between the glue outlet and the pressure plate, a transfer block is provided below the metering pump, an L-shaped liquid inlet flow channel and an L-shaped liquid outlet flow channel are respectively provided on the transfer block, one end of the L-shaped liquid inlet flow channel which is connected with the liquid inlet of the metering pump at one end extends to one end of the transfer block, and the other end The L-shaped liquid outlet channel is connected to the liquid outlet of the metering pump at one end, and the other end of the L-shaped liquid outlet channel is connected to the liquid outlet of the metering pump at one end, and extends to the other side surface of the adapter block and is connected to the glue inlet of the dispensing valve through a connecting block provided with a connecting channel. The adapter block, the glue supply block and the connecting block are each embedded with at least one heating tube. On the basis of realizing continuous and high-precision glue supply to the outside through the cooperation of the pressure plate and the glue spoon, the upper layer of the hot melt glue barrel, the hot melt glue entering the glue cylinder sleeve, and the glue in the whole process of supplying glue to the dispensing valve can be heated in real time and continuously, so as to ensure that the hot melt glue always has good fluidity, thereby ensuring the continuity of glue supply, the consistency of glue output, and the accuracy and effect of glue dispensing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Attached Figure 1 This is a schematic diagram of the overall structure of the high-fluidity hot-melt glue dispensing device of the utility model;

[0016] Attached Figure 2 The local structure of the high-fluidity hot-melt glue dispensing device of the utility model is shown in FIG. Figure 1 ;

[0017] Attached Figure 3 For the utility model Figure 2 Schematic diagram of the cross section along AA;

[0018] Attached Figure 4 For the utility model Figure 3 The enlarged schematic diagram of point B in the middle;

[0019] Attached Figure 5 For the utility model Figure 3 The enlarged schematic diagram of the center C;

[0020] Attached Figure 6 For the utility model Figure 3 The enlarged schematic diagram of point D in the middle;

[0021] Appendix Figure 7 is a schematic view of the partial structure of the high-fluidity hot-melting point glue device of the present utility model Figure 2 ;

[0022] Appendix Figure 8 is a partial structure cross-sectional view of the present utility model Figure 7 ;

[0023] Appendix Figure 9 is a schematic view of the partial structure of the high-fluidity hot-melting point glue device of the present utility model Figure 3 ;

[0024] Appendix Figure 10 is a partial structure cross-sectional view of the present utility model Figure 9 ;

[0025] In the above drawings: 100, hot-melt glue cylinder; 200, carrier plate; 300, lifting cylinder; 400, movable plate; 500, vertical connecting rod; 1, pressure plate; 2, heating module; 3, protective cover; 4, glue outlet through hole; 5, lower connecting shaft; 6, glue scooping spoon; 7, movable part; 8, movable sleeve; 81, glue outlet hole; 9, glue inlet chamber; 10, glue storage chamber; 11, glue outlet chamber; 12, glue outlet channel; 13, retaining ring; 14, lower nut; 141, first flange part; 15, glue passing sleeve; 151, sealing plate; 152, glue passing through hole; 16, glue suction cylinder; 161, second flange part; 17, connecting rod; 171, protruding part; 18, connecting sleeve; 19, flange ring; 20, gasket; 21, cylinder; 211, cylinder body part; 212, piston rod; 22, glue scooping cylinder sleeve; 24, upper connecting shaft; 241, stop part; 251, round nut; 252, fixing plate; 253, positioning column; 254, support plate; 255, second connecting block; 26, glue outlet; 27, dispensing valve; 272, glue inlet; 273, glue outlet; 28, sealing assembly; 29, metering pump; 291, liquid inlet; 292, liquid outlet; 30, adapter block; 31, L-shaped liquid inlet channel; 32, L-shaped liquid outlet channel; 33, glue supply block; 331, glue supply channel; 34, glue supply pipe; 35, connecting block; 351, communicating channel; 36, heating tube; 37, bottom substrate; 38, temperature sensor. Detailed Embodiment

[0026] The present patent can be further clearly understood through the following specific embodiments given, but they do not limit the present patent.

[0027] Embodiment 1: A high-fluidity hot-melting point glue device, comprising: a carrier plate 200 for placing a hot-melt glue cylinder 100, at least two jacking cylinders 300 vertically installed on the upper surface of the carrier plate 200, a movable plate 400 connected between the upper ends of the piston rods of the jacking cylinders 300, a pressing plate 1 connected to the movable plate 400 through at least two vertical connecting rods 500, a dispensing valve 27 and a metering pump 29 provided with a glue inlet 272 and a glue outlet channel 273, an outlet 292 of the metering pump 29 is connected to the glue inlet 272 of the dispensing valve 27, a cylinder 21 that can move up and down with it is installed on the movable plate 400 and above the pressing plate 1, a vertically extending glue-taking cylinder sleeve 22 is arranged between the cylinder body part 211 of the cylinder 21 and the pressing plate 1, a glue outlet through hole 4 communicating the hot-melt glue cylinder 100 with the inner cavity of the glue-taking cylinder sleeve 22 is opened in the center of the upper surface of the pressing plate 1 whose side surface is in sealing fit with the inner wall of the hot-melt glue cylinder 100, and an inlet 291 of the metering pump 29 is connected to the glue-taking cylinder sleeve 22;

[0028] The lower end of an upper connecting shaft 24 vertically installed at the lower end of the piston rod 212 of the cylinder 21 penetrates into the glue-taking cylinder sleeve 22, a glue outlet 26 is opened on the side wall of the upper end of the glue-taking cylinder sleeve 22 whose lower end communicates with the glue outlet through hole 4 on the pressing plate 1, a sealing assembly 28 is arranged between the glue outlet 26 and the upper connecting shaft 24 and above the glue outlet 26 and within the glue-taking cylinder sleeve 22, the lower end of the upper connecting shaft 24 whose upper end is connected to the piston rod 212 of the cylinder 21 is connected with a lower connecting shaft 5 through a connecting rod 17, a glue-taking spoon 6 that can extend into the glue outlet through hole 4 of the pressing plate 1 is installed on the vertically extending lower connecting shaft 5, and a heating module 2 is sleeved outside the glue-taking cylinder sleeve 22 and between the glue outlet 26 and the pressing plate 1;

[0029] Start the cylinder, drive the glue-taking spoon to continuously output the glue liquid in the glue outlet through hole out of the glue outlet of the glue-taking cylinder sleeve by repeatedly pulling and pushing the piston rod of the cylinder, and the glue liquid entering the glue-taking cylinder sleeve is always kept in good fluidity under the heating of the heating module outside it to ensure the continuity of glue outlet and the consistency of glue output volume;

[0030] A adapter block 30 is provided below the metering pump 29. An L-shaped liquid inlet channel 31 and an L-shaped liquid outlet channel 32 are respectively formed on the adapter block 30. The other end of the L-shaped liquid inlet channel 31, one end of which is communicated with the liquid inlet 291 of the metering pump 29, extends to a side surface of the adapter block 30 and is communicated with a glue supply channel 331 on a glue supply block 33. The end of the glue supply channel 331 far from the L-shaped liquid inlet channel 31 is connected with the glue outlet 26 on the glue taking cylinder sleeve 22 through a glue supply pipe 34. The other end of the L-shaped liquid outlet channel 32, one end of which is communicated with the liquid outlet 292 of the metering pump 29, extends to the other side surface of the adapter block 30 and is communicated with the glue inlet 272 on the dispensing valve 27 through a connecting block 35 provided with a communicating channel 351. At least one heating tube 36 is respectively embedded and installed on the adapter block 30, the glue supply block 33 and the connecting block 35.

[0031] The above-mentioned adapter block 30, glue supply block 33 and connecting block 35 are all metal blocks.

[0032] The above-mentioned adapter block 30 and the glue supply block 33 are connected through a bottom substrate 37.

[0033] One heating tube 36 is embedded and installed on the above-mentioned adapter block 30 and the connecting block 35, and one heating tube 36 is respectively embedded and installed on both sides of the L-shaped liquid inlet channel 31 and the L-shaped liquid outlet channel 32 on the glue supply block 33.

[0034] A protective cover 3 is arranged outside the above-mentioned heating module 2.

[0035] A support plate 254 is installed on the lower surface of the cylinder body part 211 of the above-mentioned cylinder 21, and the support plate 254 and the 2 vertical connecting rods 500 are respectively installed and connected through a second connecting block 255.

[0036] A temperature sensor 38 is installed on one side of the heating tube 36 on the above-mentioned adapter block 30.

[0037] The above-mentioned heating module 2 includes a heating body with a plurality of mica heating sheets built in and a temperature sensor.

[0038] The above-mentioned hot melt adhesive cylinder 100 is arranged between 2 lifting cylinders 300.

[0039] The above-mentioned movable plate 400 and the pressure plate 1 are connected through 2 vertical connecting rods 500 symmetrically arranged on both sides of the glue taking cylinder sleeve 22, so that the pressure plate 1 can move in the vertical direction along with the movable plate 400.

[0040] A round nut 251 is sleeved on the outer side of the upper end of the glue taking cylinder sleeve 22. Below the round nut 251 threadedly connected to the glue taking cylinder sleeve 22 and on the outer side of the glue taking cylinder sleeve 22, a fixing plate 252 is sleeved. The lower surface of the round nut 251 abuts against the upper surface of the fixing plate 252. The fixing plate 252 is connected to the support plate 254 through at least two vertically arranged positioning columns 253.

[0041] Embodiment 2: A high-fluidity hot-melting glue device, comprising: a carrier plate 200 for placing a hot-melting glue cylinder 100, at least two lifting cylinders 300 vertically installed on the upper surface of the carrier plate 200, a movable plate 400 connected between the upper ends of the piston rods of the lifting cylinders 300, a pressing plate 1 connected to the movable plate 400 through at least two vertical connecting rods 500, a dispensing valve 27 and a metering pump 29 provided with a glue inlet 272 and a glue outlet channel 273. The liquid outlet 292 of the metering pump 29 is connected to the glue inlet 272 of the dispensing valve 27. On the movable plate 400 and above the pressing plate 1, a cylinder 21 that can move up and down with it is installed. Between the cylinder body 211 of the cylinder 21 and the pressing plate 1, a vertically extending glue taking cylinder sleeve 22 is provided. In the center of the upper surface of the pressing plate 1 whose side surface is in sealed cooperation with the inner wall of the hot-melting glue cylinder 100, a glue outlet through hole 4 communicating the hot-melting glue cylinder 100 with the inner cavity of the glue taking cylinder sleeve 22 is provided. The liquid inlet 291 of the metering pump 29 is connected to the glue taking cylinder sleeve 22.

[0042] The lower end of an upper connecting shaft 24 vertically installed at the lower end of the piston rod 212 of the cylinder 21 penetrates into the glue taking cylinder sleeve 22. On the side wall of the upper end of the glue taking cylinder sleeve 22 whose lower end communicates with the glue outlet through hole 4 on the pressing plate 1, a glue outlet 26 is provided. Above the glue outlet 26 and between the glue taking cylinder sleeve 22 and the upper connecting shaft 24, a sealing assembly 28 is provided. The lower end of the upper connecting shaft 24 whose upper end is connected to the piston rod 212 of the cylinder 21 is connected to a lower connecting shaft 5 through a connecting rod 17. On the vertically extending lower connecting shaft 5, a glue taking spoon 6 that can extend into the glue outlet through hole 4 of the pressing plate 1 is installed. A heating module 2 is sleeved on the outer side of the glue taking cylinder sleeve 22 and between the glue outlet 26 and the pressing plate 1.

[0043] A transfer block 30 is provided below the metering pump 29. An L-shaped liquid inlet channel 31 and an L-shaped liquid outlet channel 32 are respectively formed on the transfer block 30. The other end of the L-shaped liquid inlet channel 31, one end of which is communicated with the liquid inlet 291 of the metering pump 29, extends to one side surface of the transfer block 30 and is communicated with a glue supply channel 331 on a glue supply block 33. The end of the glue supply channel 331 far from the L-shaped liquid inlet channel 31 is connected to the glue outlet 26 on the glue taking cylinder sleeve 22 through a glue supply pipe 34. The other end of the L-shaped liquid outlet channel 32, one end of which is communicated with the liquid outlet 292 of the metering pump 29, extends to the other side surface of the transfer block 30 and is communicated with the glue inlet 272 on the dispensing valve 27 through a connection block 35 provided with a communication channel 351. At least one heating tube 36 is respectively embedded and installed on the transfer block 30, the glue supply block 33 and the connection block 35;

[0044] The hot melt adhesive with fluidity enters from the glue outlet of the glue taking cylinder sleeve along the glue supply pipe and enters the glue supply channel on the glue supply block, then enters the liquid inlet of the metering pump through the L-shaped liquid inlet channel, and then passes through the L-shaped liquid outlet channel from the liquid outlet of the metering pump and finally enters the dispensing valve through the communication channel on the connection block. During the whole process of the above-mentioned glue liquid flowing, the glue liquid is continuously heated by the heating tubes in each metal block to ensure that the hot melt adhesive always maintains a relatively high temperature (about 150 °C), so as to ensure the fluidity of the glue.

[0045] One heating tube 36 is embedded and installed on the above-mentioned transfer block 30 and the connection block 35, and one heating tube 36 is respectively embedded and installed on both sides of the L-shaped liquid inlet channel 31 and the L-shaped liquid outlet channel 32 on the glue supply block 33.

[0046] The above-mentioned transfer block 30, glue supply block 33 and connection block 35 are all stainless steel blocks.

[0047] A temperature sensor 38 is installed on one side of the heating tube 36 on the above-mentioned transfer block 30.

[0048] The above-mentioned heating module 2 includes a heating body with a plurality of mica heating sheets built in and a temperature sensor.

[0049] A round nut 251 is sleeved on the outer side of the upper end of the above-mentioned glue taking cylinder sleeve 22. Below the round nut 251 threadedly connected to the glue taking cylinder sleeve 22, a fixing plate 252 is sleeved on the outer side of the glue taking cylinder sleeve 22. The lower surface of the round nut 251 abuts against the upper surface of the fixing plate 252. The fixing plate 252 is connected to the support plate 254 through at least two vertically arranged positioning columns 253.

[0050] The lower end of the above-mentioned glue-taking cylinder sleeve 22 and above the glue-taking spoon 6 is hermetically connected with a glue-passing sleeve 15. The lower end of the glue-passing sleeve 15 with a sealing plate 151 at the upper end is hermetically connected with a glue-sucking cylinder 16. The lower end of the glue-sucking cylinder 16 is embedded in the glue outlet through-hole 4 on the pressing disc 1.

[0051] Inside the above-mentioned glue-passing sleeve 15 and below the sealing plate 151, there is a movable part 7 that can move in the vertical direction. The lower part of the movable part 7 hermetically sleeved on the lower connecting shaft 5 can be hermetically connected with the upper end of the glue-sucking cylinder 16, so as to form a glue inlet chamber 9 between the glue-passing sleeve 15, the glue-sucking cylinder 16 and the movable part 7. An activity sleeve 8 is sleeved outside the connecting rod 17. Above the activity sleeve 8 that can move in the vertical direction, there is a stop part 241. The outer surface of the lower part of the activity sleeve 8 is hermetically connected with the inner wall of the glue-taking cylinder sleeve 22, so as to form a glue storage chamber 10 between the lower part of the activity sleeve 8 and the sealing plate 151 of the glue-passing sleeve 15. The lower part of the connecting rod 17 has a radially outward protruding part 171. The lower end of the activity sleeve 8 can be hermetically fitted with the upper surface of the protruding part 171, so as to form a glue outlet chamber 11 between the activity sleeve 8 and the connecting rod 17. The glue inlet chamber 9 is communicated with the glue storage chamber 10 through a plurality of glue-passing through-holes 152 opened on the sealing plate 151. A glue outlet hole 81 communicated with the glue outlet chamber 11 is opened on the side wall of the upper part of the activity sleeve 8. There is a glue outlet channel 12 between the glue outlet hole 81 and the glue outlet 26 on the glue-taking cylinder sleeve 22.

[0052] The above-mentioned stop part 241 is arranged at the lower part of the upper connecting shaft 24.

[0053] The upper surface of the protruding part 171 on the above-mentioned connecting rod 17 is a tapered surface with an open lower end. The lower end of the activity sleeve 8 is provided with an inner chamfer surface that can be fitted with the tapered surface.

[0054] A retaining ring 13 is arranged between the above-mentioned glue-passing sleeve 15 and the glue-sucking cylinder 16. The upper surface of the retaining ring 13 is hermetically connected with the lower end surface of the glue-passing sleeve 15 through an O-ring. The lower surface of the retaining ring 13 is hermetically connected with the upper end surface of the glue-sucking cylinder 16 through an O-ring. The upper end of the retaining ring 13 is provided with an inner chamfer, and the inner chamfer surface is in sealing contact with the movable part 7.

[0055] A lower nut 14 is threadedly connected to the outer wall of the lower end of the above-mentioned glue-taking cylinder sleeve 22. The lower nut 14 is sleeved outside the glue-passing sleeve 15 and is hermetically connected with the outer wall of the glue-passing sleeve 15.

[0056] On the inner wall at the lower end of the lower nut 14, there is a first flange portion 141 extending radially inward. On the outer wall at the upper end of the glue suction cylinder 16, there is a second flange portion 161 extending radially outward. The lower surface of the second flange portion 161 is in lap contact with the upper surface of the first flange portion 141, and the outer surface of the second flange portion 161 is sealingly connected to the inner wall of the lower nut 14.

[0057] Between the lower nut 14 and the pressure plate 1 and outside the glue suction cylinder 16, a connecting sleeve 18 is provided. The lower end of the connecting sleeve 18 is embedded in a flange ring 19 and is sealingly connected to the inner wall of the flange ring 19. The flange ring 19 and the upper surface of the pressure plate 1 are connected by bolts, and the inner wall of the connecting sleeve 18 is sealingly connected to the outer wall of the glue suction cylinder 16.

[0058] A sealing gasket 20 is provided between the flange ring 19 and the upper surface of the pressure plate 1.

[0059] The working principle of the present utility model is as follows:

[0060] Start the cylinder. By repeatedly pulling and pushing the piston rod of the cylinder, the glue scooping spoon is driven to continuously output the glue in the glue outlet hole outwards from the glue outlet of the glue cylinder sleeve. The glue entering the glue cylinder sleeve remains in good fluidity under the heating of the heating module on its outer side to ensure the continuity of glue output and the consistency of glue output volume.

[0061] The hot melt glue with fluidity enters from the glue outlet of the glue cylinder sleeve along the glue supply pipe at the glue supply flow path on the glue supply block, passes through the L-shaped liquid inlet flow path into the liquid inlet of the metering pump, and then passes through the L-shaped liquid outlet flow path from the liquid outlet of the metering pump and finally enters the dispensing valve through the communication flow path on the connecting block. During the whole process of the above glue flow, the glue is continuously heated by the heating tubes in each metal block to ensure that the hot melt glue always maintains a relatively high temperature (about 150 °C), so as to ensure the fluidity of the glue. The metering pump is obtained through outsourcing and is mainly used for metering and increasing, which does not belong to the invention point of this patent and will not be elaborated here.

[0062] When the above high-fluidity hot melt glue device is adopted, on the basis of realizing continuous and high-precision outward glue supply through the cooperation of the pressure plate and the glue scooping spoon, it can continuously heat the hot melt glue on the upper layer of the hot melt glue bucket, the hot melt glue entering the glue cylinder sleeve, and the glue during the whole process of supplying glue to the dispensing valve in real time, so as to ensure that the hot melt glue always has good fluidity, thereby ensuring the continuity of glue supply, the consistency of glue output volume, and the precision and effect of dispensing.

[0063] The above embodiments are only used to illustrate the technical concept and features of the present utility model. The purpose is to enable those skilled in the art to understand the content of the present utility model and implement it accordingly, and it should not be used to limit the protection scope of the present utility model. Any equivalent changes or modifications made according to the spirit and essence of the present utility model should be covered within the protection scope of the present utility model.

Claims

1. A high-fluidity hot melt glue dispensing device, comprising: A carrier plate (200) for placing a hot melt adhesive tube (100), at least two lifting cylinders (300) vertically mounted on the upper surface of the carrier plate (200), a movable plate (400) connected between the upper ends of the piston rods of the lifting cylinders (300), a pressure plate (1) connected to the movable plate (400) via at least two vertical connecting rods (500), a dispensing valve (27) having a glue inlet (272) and a glue outlet channel (273), and a metering pump (29), wherein the liquid outlet (292) of the metering pump (29) is connected to the glue inlet (272) of the dispensing valve (27). 2) connection, a cylinder (21) is installed on the movable plate (400) and located above the pressure plate (1) and can move up and down with it, a vertically extending glue cylinder sleeve (22) is arranged between the cylinder body (211) of the cylinder (21) and the pressure plate (1), a glue outlet through hole (4) connecting the hot melt glue cylinder (100) and the inner cavity of the glue cylinder sleeve (22) is arranged in the center of the upper surface of the pressure plate (1) whose side surface is sealed with the inner wall of the hot melt glue cylinder (100), and the liquid inlet (291) of the metering pump (29) is connected to the glue cylinder sleeve (22); The invention is characterized in that: the lower end of an upper link shaft (24) vertically mounted on the lower end of the piston rod (212) of the cylinder (21) penetrates into the glue dispensing cylinder sleeve (22); a glue outlet (26) is provided on the side wall of the upper end of the glue dispensing cylinder sleeve (22) whose lower end is connected to the glue outlet through hole (4) on the pressure plate (1); a sealing component (28) is provided above the glue outlet (26) and between the glue dispensing cylinder sleeve (22) and the upper link shaft (24); the lower end of the upper link shaft (24) connected to the piston rod (212) of the cylinder (21) is connected to a lower link shaft (5) through a connecting rod (17); a glue dispensing spoon (6) that can be inserted into the glue outlet through hole (4) of the pressure plate (1) is installed on the vertically extending lower link shaft (5); a heating module (2) is provided on the outer side of the glue dispensing cylinder sleeve (22) and between the glue outlet (26) and the pressure plate (1); An adapter block (30) is provided below the metering pump (29), and an L-shaped liquid inlet flow channel (31) and an L-shaped liquid outlet flow channel (32) are respectively provided on the adapter block (30). One end of the L-shaped liquid inlet flow channel (31) is connected to the liquid inlet port (291) of the metering pump (29), and the other end of the L-shaped liquid inlet flow channel (31) extends to a side surface of the adapter block (30) and is connected to a glue supply flow channel (331) on a glue supply block (33). The end of the glue supply flow channel (331) away from the L-shaped liquid inlet flow channel (31) is connected to the glue supply flow channel (331) through a glue supply pipe. (34) is connected to the glue outlet (26) on the glue cylinder sleeve (22), and the other end of the L-shaped liquid outlet channel (32) connected to the liquid outlet (292) of the metering pump (29) at one end extends to the other side surface of the adapter block (30) and is connected to the glue inlet (272) on the glue dispensing valve (27) through a connecting block (35) provided with a connecting channel (351). At least one heating tube (36) is embedded and installed on each of the adapter block (30), the glue supply block (33) and the connecting block (35).

2. The high-fluidity hot melt glue dispensing device according to claim 1, characterized in that: The adapter block (30), the glue supply block (33) and the connection block (35) are all metal blocks.

3. The high-fluidity hot melt glue dispensing device according to claim 1, characterized in that: The adapter block (30) and the glue supply block (33) are connected via a bottom substrate (37).

4. The high-fluidity hot melt glue dispensing device according to claim 1, characterized in that: A heating tube (36) is embedded and installed on the adapter block (30) and the connection block (35), and a heating tube (36) is embedded and installed on both sides of the L-shaped liquid inlet flow channel (31) and the L-shaped liquid outlet flow channel (32) on the glue supply block (33).

5. The high-fluidity hot melt glue dispensing device according to claim 1, characterized in that: A protective cover (3) is provided on the outside of the heating module (2).

6. The high-fluidity hot melt glue dispensing device according to claim 2, characterized in that: A support plate (254) is installed on the lower surface of the cylinder body (211) of the cylinder (21), and the support plate (254) is connected to the two vertical connecting rods (500) via a second connecting block (255).

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