Glue supply system

Abstract

The utility model discloses a glue supply system which comprises a glue supply cylinder and a fixing frame, the glue supply cylinder is fixed on the fixing frame, a gear motor is fixed at the upper end of the fixing frame, the upper end of the fixing frame is rotatably connected with an upper cover, the upper end of the upper cover is rotatably connected with an upper glue gathering ring, and the lower end of the glue supply cylinder is rotatably connected with a lower cover. The lower end of the lower cover is rotatably connected with a lower glue collecting ring, the inner wall of the glue supply barrel is connected with an extrusion plate which slides up and down, and the lower end of the extrusion plate is rotatably connected with a telescopic rod. Glue in the upper glue supply cavity and the lower glue supply cavity in the glue supply barrel is stirred, meanwhile, a heating rod works to emit heat, heat is conducted to the glue in the upper glue supply cavity and the lower glue supply cavity through heat conduction of a guide copper column, and the glue in the upper glue supply cavity and the lower glue supply cavity is stirred while being heated. And the situation that glue in the upper glue supply cavity and the lower glue supply cavity is solidified and cannot be continuously supplied is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of glue supply, in particular to a glue supply system. Background Art

[0002] A dispensing machine, also known as a glue coating machine, a glue dropping machine, a caulking machine, a potting machine, etc., is specialized in controlling fluids. It is an automated machine that can drop and coat fluids on the surface or inside of products, and can achieve three-dimensional and four-dimensional path dispensing, precise positioning, accurate glue control, no wire drawing, no glue leakage, and no glue dripping. The dispensing machine is mainly used to accurately dot, inject, coat, and drop glue, paint, and other liquids in the product process to each precise position of the product, and can be used to achieve dotting, line drawing, circular or arc-shaped. Generally, the dispensing machine is directly connected to the glue supply mechanism.

[0003] Chinese Patent Application No. CN2021225747300 discloses a glue supply device for a dispensing machine, which includes a glue supply cylinder loaded with glue, a glue supply pipe communicated with the glue supply cylinder, and a glue supply plate for installing the glue supply pipe; the glue supply pipe branches into several glue supply sub-pipes, and several glue supply sub-pipes are installed on the glue supply plate and the pipe orifices of several glue supply sub-pipes face a template between two scraping plates; a glue supply driving member is installed on the glue supply pipe to drive the glue to be transported from the glue supply cylinder along the glue supply pipe and the glue supply sub-pipes to the template. This glue supply device for a dispensing machine has the effect that the glue supply driving member drives the glue to be continuously discharged from the glue supply cylinder along the glue supply pipe to the template of the dispensing machine, so that there is always enough glue on the template to dispense glue on the workpiece, thereby reducing the number of times that the operator often checks the glue amount on the template and improving the continuity of the dispensing machine for dispensing workpieces.

[0004] The above-mentioned glue supply device for a dispensing machine can continuously supply glue to the dispensing machine. However, its glue supply cylinder does not have a heating and stirring mechanism, resulting in the glue being easily solidified inside the glue supply cylinder when not in use for a long time, which easily causes the glue to solidify in the corresponding pipeline, resulting in the problem of waste glue blockage, making it inconvenient to supply glue to the dispensing machine subsequently. Once blocked, it may be necessary to replace multiple parts, and the maintenance cost is relatively high. Content of the Utility Model

[0005] In view of the above problems, the utility model provides a glue supply system, which solves the above problems.

[0006] To achieve the above object, the utility model provides the following technical solutions: A glue supply system includes a glue supply cylinder and a fixing frame. The glue supply cylinder is fixed on the fixing frame. A reduction motor is fixed at the upper end of the fixing frame. The upper end of the fixing frame is rotatably connected with an upper cover. The upper end of the upper cover is rotatably connected with an upper glue collecting ring. The lower end of the glue supply cylinder is rotatably connected with a lower cover. The lower end of the lower cover is rotatably connected with a lower glue collecting ring. The inner wall of the glue supply cylinder is connected with a squeezing plate that slides up and down. The lower end of the squeezing plate is rotatably connected with a telescopic rod. The lower end of the telescopic rod is rotatably connected with the lower cover. The lower end of the reduction motor is connected with a transmission rod. The lower end of the transmission rod is fixedly connected with the upper cover. A plurality of guiding copper columns are fixed along the circumference between the transmission rod, the upper cover and the lower cover. The guiding copper columns penetrate through the squeezing plate and are slidably connected with the squeezing plate. Heating rods are arranged inside the guiding copper columns. The outer wall of the upper cover is communicated with an upper glue outlet pipe fixed on the fixing frame. The outer wall of the lower glue collecting ring is communicated with a lower glue outlet pipe fixed on the fixing frame. Both the upper glue outlet pipe and the lower glue outlet pipe are communicated with a main glue supply pipe. The space formed between the upper cover and the squeezing plate is an upper glue supply chamber. The cavity formed between the lower cover and the squeezing plate is a lower glue supply chamber. The upper glue supply chamber is communicated with an upper glue inlet pipe. The glue supply chamber is communicated with a lower glue inlet pipe.

[0007] Preferably, the upper glue inlet pipe is communicated with the uppermost end of the upper glue supply chamber, the lower glue inlet pipe is communicated with the lowermost end of the lower glue supply chamber, and one-way valves are arranged on the upper glue inlet pipe, the lower glue inlet pipe, the upper glue outlet pipe and the lower glue outlet pipe.

[0008] Preferably, the upper cover is conical with the vertex facing downwards, the lower cover is conical with the vertex facing upwards, the upper and lower end faces of the squeezing plate are both concave cones, and rubber rings are arranged at the joints of the squeezing plate, the upper cover and the lower cover with the glue supply cylinder and are sealed.

[0009] Preferably, a through hole communicated with the upper glue collecting ring is arranged at the upper end of the upper cover, a through hole communicated with the lower glue collecting ring is arranged at the lower end of the lower cover, the cross sections of the upper glue collecting ring and the lower glue collecting ring are U-shaped, and the joints of the upper glue collecting ring with the upper cover and the lower cover with the lower glue collecting ring are both sealed.

[0010] Preferably, the wires at the lower ends of the heating rods are all connected with electric slip rings, and the electric slip rings are connected with an external power supply through cables.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] 1. The reduction motor drives the upper cover, the extrusion plate and the lower cover to rotate. At the same time, the guiding copper column rotates accordingly, stirring the glue in the upper glue supply chamber and the lower glue supply chamber inside the glue supply cylinder. Meanwhile, the heating rod generates heat, and the heat is conducted to the glue in the upper glue supply chamber and the lower glue supply chamber through the guiding copper column, heating and stirring the glue in the upper glue supply chamber and the lower glue supply chamber simultaneously, preventing the glue in the upper glue supply chamber and the lower glue supply chamber from solidifying and causing the inability to continue supplying glue.

[0013] 2. The effect of extrusion and suction is achieved by the up and down movement of the extrusion plate, and it cooperates with the one-way valve to achieve the replenishment of glue while supplying glue, preventing the occurrence of glue breakage. The upper cover and the lower cover are set to be conical, and the upper and lower cross-sections of the extrusion plate are set to be conical depressions, ensuring that the glue in the upper glue supply chamber and the lower glue supply chamber is completely extruded. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0015] Figure 2 It is a schematic diagram of the overall glue supply cylinder of the present utility model;

[0016] Figure 3 It is a schematic cross-sectional view of the glue supply cylinder of the present utility model;

[0017] Figure 4 It is a schematic diagram of the inside of the glue supply cylinder of the present utility model;

[0018] Figure 5 It is a schematic diagram of the inside of the guiding copper column of the present utility model.

[0019] Explanation of the labels in the figure: 1. Glue supply cylinder; 2. Fixed frame; 3. Reduction motor; 4. Electric slip ring; 5. Glue supply main pipe; 6. Telescopic rod; 11. Extrusion plate; 12. Upper cover; 13. Upper glue collecting ring; 14. Lower cover; 15. Lower glue collecting ring; 16. Upper glue inlet pipe; 17. Lower glue inlet pipe; 18. Upper glue outlet pipe; 19. Lower glue outlet pipe; 31. Transmission rod; 32. Guiding copper column; 33. Heating rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The following further describes the embodiments of the present utility model in detail with reference to the drawings and embodiments. The following embodiments are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0021] Please refer to Figure 1 , Figure 2 and Figure 3, A glue supply system includes a glue supply cylinder 1 and a fixing frame 2. The glue supply cylinder 1 is fixed on the fixing frame 2. A reduction motor 3 is fixed at the upper end of the fixing frame 2. The reduction motor 3 provides power for the device to ensure the stirring of the glue inside the device and prevent the glue from solidifying. The upper end of the fixing frame 2 is rotatably connected to an upper cover 12. The upper end of the upper cover 12 is rotatably connected to an upper glue collecting ring 13. The lower end of the glue supply cylinder 1 is rotatably connected to a lower cover 14. The lower end of the lower cover 14 is rotatably connected to a lower glue collecting ring 15. The inner wall of the glue supply cylinder 1 is connected with a vertically sliding pressing plate 11. The lower end of the pressing plate 11 is rotatably connected to a telescopic rod 6. The lower end of the telescopic rod 6 is rotatably connected to the lower cover 14. The expansion and contraction of the pressing plate 11 drives the telescopic rod 6 to slide up and down, realizing the effects of extrusion and suction, and cooperating with the one-way valve to realize the supply of glue while replenishing the glue, preventing the occurrence of glue breakage. The upper cover 12 is conical with the vertex facing downwards, and the lower cover 14 is conical with the vertex facing upwards. The upper and lower end faces of the pressing plate 11 are concave cones. The upper cover 12 and the lower cover 14 are set as cones, and the upper and lower cross-sections of the pressing plate 11 are set as concave cones to ensure that the glue in the upper glue supply cavity and the lower glue supply cavity is completely extruded. Rubber rings are provided at the connections of the pressing plate 11, the upper cover 12 and the lower cover 14 with the glue supply cylinder 1 and are sealed. The connections of the pressing plate 11, the upper cover 12 and the lower cover 14 with the glue supply cylinder 1 are sealed to prevent the glue inside the glue supply cylinder 1 from overflowing while rotating, ensuring the sealing of the connection.

[0022] Please refer to Figure 1 , Figure 2 and Figure 3 , A through hole communicating with the upper glue collecting ring 13 is provided at the upper end of the upper cover 12. A through hole communicating with the lower glue collecting ring 15 is provided at the lower end of the lower cover 14. The cross-section of the upper glue collecting ring 13 and the lower glue collecting ring 15 is U-shaped. The connections of the upper glue collecting ring 13 with the upper cover 12 and the lower cover 14 with the lower glue collecting ring 15 are sealed. The glue in the upper glue supply cavity is extruded by the pressing plate 11 through the through hole on the upper cover 12 into the upper glue collecting ring 13, and the glue is supplied to the gluing device for gluing through the upper glue outlet pipe 18 and the main glue supply pipe 5. When the pressing plate 11 moves downward, the glue in the lower glue supply cavity is extruded into the lower glue collecting ring 15 through the through hole of the lower cover 14, and the glue is supplied to the gluing device for gluing through the lower glue outlet pipe 19 and the main glue supply pipe 5.

[0023] Please refer to Figure 3 , Figure 4 and Figure 5, a drive rod 31 is connected to the lower end of the reduction motor 3, and the lower end of the drive rod 31 is fixedly connected to the upper cover 12. When the reduction motor 3 operates, it drives the upper cover 12, the extrusion plate 11, and the lower cover 14 to rotate. At the same time, the guiding copper columns 32 rotate accordingly to stir the glue in the upper glue supply chamber and the lower glue supply chamber inside the glue supply cylinder 1. A plurality of guiding copper columns 32 are fixedly arranged along the circumference between the drive rod 31, the upper cover 12, and the lower cover 14. The guiding copper columns 32 penetrate through the extrusion plate 11 and are slidably connected to the extrusion plate 11. Heating rods 33 are arranged inside the guiding copper columns 32. When the heating rods 33 operate and generate heat, the heat is conducted through the guiding copper columns 32 to the glue in the upper glue supply chamber and the lower glue supply chamber, realizing heating and stirring of the glue in the upper glue supply chamber and the lower glue supply chamber, preventing the glue in the upper glue supply chamber and the lower glue supply chamber from solidifying and causing the inability to continue supplying glue. The wires at the lower ends of the heating rods 33 are all connected to an electric slip ring 4, and the electric slip ring 4 is connected to an external power supply through a cable. The electric slip ring 4 is used to connect the heating rods 33 and the external power supply. When the lower cover 14 rotates, it prevents the wires at the lower ends of the heating rods 33 from being wound and ensures the transmission of electric energy.

[0024] Please refer to Figure 2 , Figure 3 and Figure 4 , an upper glue outlet pipe 18 fixed on the fixing frame 2 is communicated with the outer wall of the upper cover 12, and a lower glue outlet pipe 19 fixed on the fixing frame 2 is communicated with the outer wall of the lower glue collecting ring 15. Both the upper glue outlet pipe 18 and the lower glue outlet pipe 19 are communicated with a main glue supply pipe 5. The space formed between the upper cover 12 and the extrusion plate 11 is the upper glue supply chamber, and the cavity formed between the lower cover 14 and the extrusion plate 11 is the lower glue supply chamber. When the telescopic rod 6 pushes the extrusion plate 11 upward, the extrusion plate 11 extrudes the glue in the upper glue supply chamber and simultaneously sucks the lower glue supply chamber, sucking the external glue into the lower glue supply chamber through the lower glue inlet pipe 17. At the same time, due to the one-way valves on the upper glue inlet pipe 16 and the lower glue outlet pipe 19, the glue in the upper glue supply chamber can only enter the main glue supply pipe 5 through the upper glue collecting ring 13 and the upper glue outlet pipe 18 to supply glue to the coating device. When the extrusion plate 11 moves downward, the situation is reversed. The extrusion plate 11 extrudes the glue in the lower glue supply chamber and simultaneously sucks the upper glue supply chamber, sucking the external glue into the upper glue supply chamber through the upper glue inlet pipe 16. Repeating this process can prevent the phenomenon of glue supply. The upper glue supply chamber is communicated with an upper glue inlet pipe 16, and the glue supply chamber is communicated with a lower glue inlet pipe 17. The upper glue inlet pipe 16 is communicated with the uppermost end of the upper glue supply chamber, and the lower glue inlet pipe 17 is communicated with the lowermost end of the lower glue supply chamber. One-way valves are provided on the upper glue inlet pipe 16, the lower glue inlet pipe 17, the upper glue outlet pipe 18, and the lower glue outlet pipe 19. By adding one-way valves on each pipeline for cooperation, the situation of glue backflow can be prevented, and further, the phenomenon of glue breakage in the coating device can be prevented.

[0025] When the utility model is in use:

[0026] First, a hose is used to connect an external glue bucket with the upper glue inlet pipe 16 and the lower glue inlet pipe 17, and the main glue supply pipe 5 is connected to the glue applying device;

[0027] Then, the reduction motor 3 operates, and the heating rod 33 is energized to generate heat. The reduction motor 3 drives the upper cover 12, the extrusion plate 11, and the lower cover 14 to rotate. At the same time, the guide copper column 32 rotates accordingly to stir the glue in the upper glue supply cavity and the lower glue supply cavity inside the glue supply cylinder 1. The heating rod 33 generates heat, and the guide copper column 32 conducts heat to transfer the heat to the glue in the upper glue supply cavity and the lower glue supply cavity, stirring and heating the glue in the upper glue supply cavity and the lower glue supply cavity at the same time to prevent the glue in the upper glue supply cavity and the lower glue supply cavity from solidifying;

[0028] Next, the telescopic rod 6 operates to push the extrusion plate 11 upward. The extrusion plate 11 extrudes the glue in the upper glue supply cavity and at the same time sucks the lower glue supply cavity, sucking the external glue into the lower glue supply cavity through the lower glue inlet pipe 17. At the same time, due to the one-way valves on the upper glue inlet pipe 16 and the lower glue outlet pipe 19, the glue in the upper glue supply cavity can only enter the main glue supply pipe 5 through the upper glue collecting ring 13 and the upper glue outlet pipe 18 to supply glue to the glue applying device. When the extrusion plate 11 moves downward, the opposite is true. The extrusion plate 11 extrudes the glue in the lower glue supply cavity and at the same time sucks the upper glue supply cavity, sucking the external glue into the upper glue supply cavity through the upper glue inlet pipe 16, and so on;

[0029] Finally, the glue in the main glue supply pipe 5 is supplied to the glue applying device to make the glue applying device work normally.

[0030] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A glue supply system, characterized in that: It includes a glue supply cylinder (1) and a fixing frame (2). The glue supply cylinder (1) is fixed on the fixing frame (2). A reduction motor (3) is fixed at the upper end of the fixing frame (2). The upper end of the fixing frame (2) is rotatably connected with an upper cover (12). The upper end of the upper cover (12) is rotatably connected with an upper glue collecting ring (13). The lower end of the glue supply cylinder (1) is rotatably connected with a lower cover (14). The lower end of the lower cover (14) is rotatably connected with a lower glue collecting ring (15). The inner wall of the glue supply cylinder (1) is connected with a squeezing plate (11) that slides up and down. The lower end of the squeezing plate (11) is rotatably connected with a telescopic rod (6). The lower end of the telescopic rod (6) is rotatably connected with the lower cover (14). The lower end of the reduction motor (3) is connected with a transmission rod (31). The lower end of the transmission rod (31) is fixedly connected with the upper cover (12). A plurality of guiding copper columns (32) are fixed along the circumference between the transmission rod (31), the upper cover (12) and the lower cover (14). The guiding copper columns (32) penetrate through the squeezing plate (11) and are slidably connected with the squeezing plate (11). Heating rods (33) are arranged inside the guiding copper columns (32). The outer wall of the upper cover (12) is communicated with an upper glue outlet pipe (18) fixed on the fixing frame (2). The outer wall of the lower glue collecting ring (15) is communicated with a lower glue outlet pipe (19) fixed on the fixing frame (2). The upper glue outlet pipe (18) and the lower glue outlet pipe (19) are both communicated with a main glue supply pipe (5). The space formed between the upper cover (12) and the squeezing plate (11) is an upper glue supply cavity. The cavity formed between the lower cover (14) and the squeezing plate (11) is a lower glue supply cavity. The upper glue supply cavity is communicated with an upper glue inlet pipe (16). The glue supply cavity is communicated with a lower glue inlet pipe (17).

2. The glue supply system according to claim 1, wherein: The upper glue inlet pipe (16) is communicated with the uppermost end of the upper glue supply cavity. The lower glue inlet pipe (17) is communicated with the lowermost end of the lower glue supply cavity. One-way valves are arranged on the upper glue inlet pipe (16), the lower glue inlet pipe (17), the upper glue outlet pipe (18) and the lower glue outlet pipe (19).

3. The glue supply system according to claim 1, wherein: The upper cover (12) is conical with the vertex facing downwards. The lower cover (14) is conical with the vertex facing upwards. The upper and lower end faces of the squeezing plate (11) are both concave cones. Rubber rings are arranged at the connection parts of the squeezing plate (11), the upper cover (12) and the lower cover (14) with the glue supply cylinder (1) and are sealed.

4. A glue supply system according to claim 1, characterized in that: The upper end of the upper cover (12) is provided with a through hole communicated with the upper glue collecting ring (13). The lower end of the lower cover (14) is provided with a through hole communicated with the lower glue collecting ring (15). The cross section of the upper glue collecting ring (13) and the lower glue collecting ring (15) is U-shaped. The connection parts between the upper glue collecting ring (13) and the upper cover (12) and between the lower cover (14) and the lower glue collecting ring (15) are both sealed.

5. A glue supply system according to claim 1, characterized in that: The wires at the lower ends of the heating rods (33) are all connected with slip rings (4). The slip rings (4) are connected with an external power supply through cables.

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