Dispensing device

Abstract

The utility model relates to a dispensing device which comprises an unwinding mechanism, a first deviation rectifying mechanism, a dispensing mechanism and a second deviation rectifying mechanism which are arranged in sequence, the output end of the first deviation rectifying mechanism is connected to the back face of the unwinding mechanism, and the first deviation rectifying mechanism is used for adjusting the horizontal position of the unwinding mechanism. The glue dispensing mechanism comprises glue dispensing manipulators capable of moving in the X direction, the Y direction and the Z direction; and the second deviation rectifying mechanism is arranged at the outlet position of the dispensing mechanism. The glue dispensing device adopts automatic unwinding, deviation correction and glue dispensing, is simple in overall structure, and has the advantages of low cost, high efficiency, easiness in maintenance and the like.

Description

Technical Field

[0001] The utility model relates to lithium battery production equipment, in particular to a glue dispensing device. Background Art

[0002] In the lithium manganese laminating machine used for lithium battery production, it is necessary to unwind the battery separator and laminate the positive and negative electrode materials with the separator. In order to ensure the yield rate after lamination, it is necessary to dispense glue on the separator before laminating the separator to achieve good fitting of the separator.

[0003] Therefore, a dispensing device is needed to realize the automatic unwinding and dispensing of the diaphragm to adapt to the automated production process. Utility Model Content

[0004] In view of the above situation, it is necessary to provide a dispensing device that solves at least one of the above problems.

[0005] A glue dispensing device comprises an unwinding mechanism, a first deviation correcting mechanism, a glue dispensing mechanism and a second deviation correcting mechanism which are arranged in sequence;

[0006] The output end of the first deflection correcting mechanism is connected to the back side of the unwinding mechanism, and the first deflection correcting mechanism is used to adjust the horizontal position of the unwinding mechanism;

[0007] The dispensing mechanism includes a dispensing robot that can move in three directions of XYZ;

[0008] The second deviation-correcting mechanism is arranged at the exit position of the glue dispensing mechanism.

[0009] As a further solution of the utility model: the unwinding mechanism includes an active unwinding motor, a material roll, an unwinding detector and a guide roller group;

[0010] The unwinding mechanism is arranged on the frame through a horizontally arranged guide rod, and the active unwinding motor is arranged on the back of the frame to drive the material roll to rotate;

[0011] The diaphragm on the material roll passes through the material discharge detector and the guide roller group in sequence and is then pulled to the dispensing mechanism. The material discharge detector is used to detect the material discharge speed to prevent the material from being discharged too slowly or too quickly.

[0012] The unwinding detector is electrically connected to the active unwinding motor to form a feedback control relationship.

[0013] As a further solution of the utility model: the unwinding detector comprises a swing arm, one end of which is rotatably arranged on the mounting plate of the unwinding mechanism and is connected to a rotary encoder via a connecting shaft;

[0014] A tensioning roller is arranged at the other end of the swing arm, and a downward pressing cylinder is arranged on the mounting plate corresponding to the middle position of the swing arm. The piston of the downward pressing cylinder is connected to the middle position of the swing arm. When the piston of the downward pressing cylinder is pressed downward, the height of one end of the swing arm on which the tensioning roller is installed decreases, the tensioning roller squeezes the diaphragm downward, and the rotary encoder senses the swing amplitude of the swing arm.

[0015] As a further solution of the utility model: a correction sensor is arranged in the middle of the guide roller group, and the correction sensor is a photoelectric sensor for detecting the position of the diaphragm. The correction sensor is electrically connected to the first correction mechanism to form a feedback control relationship.

[0016] As a further solution of the utility model: the first deviation correction mechanism is arranged on the back of the frame and is located on the same side as the active unwinding motor of the unwinding mechanism;

[0017] The first deviation-correcting mechanism is a telescopic mechanism, and its output end can be telescopic, thereby driving the unwinding mechanism as a whole to move horizontally in the length direction of the guide rod.

[0018] As a further solution of the utility model: the dispensing mechanism further includes a dispensing platform, and the dispensing robot moves above the dispensing platform;

[0019] The dispensing platform is fixed on the frame, and the negative electrode material and the diaphragm material pass through the material tank for dispensing.

[0020] As a further solution of the utility model: a material limiting step is arranged on the dispensing platform, and the material limiting step limits the unilateral position of the material.

[0021] The above-mentioned dispensing device adopts automatic unwinding, deviation correction and dispensing, and has a simple overall structure and has the advantages of low cost, high efficiency and easy maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a first structural schematic diagram of an embodiment of the utility model;

[0023] Figure 2 It is a second structural schematic diagram of an embodiment of the utility model;

[0024] Figure 3 It is a first structural schematic diagram of the unwinding mechanism of an embodiment of the utility model;

[0025] Figure 4 It is a second structural schematic diagram of the unwinding mechanism of an embodiment of the utility model. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0027] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "center", "longitudinal", "lateral", "up", "down", "left", "right", "inside", "outside", "front end", "rear end", "head", "tail", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0029] A glue dispensing device comprises an unwinding mechanism 100, a first deviation correcting mechanism 200, a glue dispensing mechanism 300 and a second deviation correcting mechanism 400 which are arranged in sequence; a lithium battery separator is unwound from the unwinding mechanism 100, its position is corrected by the first deviation correcting mechanism 200, and then it reaches the glue dispensing mechanism 300 for glue dispensing, and finally leaves the glue dispensing device through the second deviation correcting mechanism 400.

[0030] The output end 210 of the first correcting mechanism 200 is connected to the back side of the unwinding mechanism 100, and the first correcting mechanism 200 is used to adjust the horizontal position of the unwinding mechanism 100; the purpose of arranging the first correcting mechanism 200 on the back side of the unwinding mechanism 100 is to reduce the degree of protrusion of the front side, shorten the distance between the unwinding mechanism 100 and the vertical plate of the frame, reduce the strength requirements for the bearing components, and thus reduce costs.

[0031] The glue dispensing mechanism 300 includes a glue dispensing robot 310 that can move in three directions, XYZ. Because the glue dispensing process has the process steps of discharging waste glue and cleaning the glue nozzle, an XYZ three-axis robot is added, and the glue gun is set on the robot, which can realize the automatic discharge of waste glue and cleaning of the glue nozzle. At the same time, it can cope with diaphragm materials of different specifications and realize the glue dispensing work of diaphragms of different widths by adjusting the glue dispensing coordinates.

[0032] The second deviation-correcting mechanism 400 is arranged at the outlet position of the dispensing mechanism 300. The second deviation-correcting mechanism 400 is used for deviation-correcting of the discharged material, so as to facilitate the material docking with the next process device.

[0033] Furthermore, the unwinding mechanism 100 includes an active unwinding motor 110, a material roll 120, an unwinding detector 130 and a guide roller group 140;

[0034] The unwinding mechanism 100 is arranged on the frame through a horizontally arranged guide rod 150, and the active unwinding motor 110 is arranged on the back of the frame to drive the material roll 120 to rotate. By controlling the speed of the active unwinding motor 110, the unwinding speed of the material roll 120 can be controlled, or the material roll can be reversed and tightened; further, the active unwinding motor 110 is arranged on the guide rod 150, so the active unwinding motor 110 can move with the entire unwinding mechanism 100 without affecting its driving of the material roll 120.

[0035] The diaphragm on the material roll 120 passes through the material discharge detector 130 and the guide roller group 140 in sequence, and is then pulled to the glue dispensing mechanism 300. The material discharge detector 130 is used to detect the material discharge speed to prevent the material from being discharged too slowly or too quickly.

[0036] The unwinding detector 130 is electrically connected to the active unwinding motor 110 to form a feedback control relationship.

[0037] Specifically, the unwinding detector 130 includes a swing arm 131, one end of which is rotatably disposed on the mounting plate of the unwinding mechanism 100 and is connected to a rotary encoder 133 via a connecting shaft;

[0038] A tensioning roller 132 is arranged at the other end of the swing arm 131, and a pressing cylinder 134 is arranged on the mounting plate at the middle position corresponding to the swing arm 131. The piston of the pressing cylinder 134 is connected to the middle position of the swing arm 131. When the piston of the pressing cylinder 134 is pressed downward, the height of one end of the swing arm 131 on which the tensioning roller 132 is installed decreases, and the tensioning roller 132 squeezes the diaphragm downward, and the rotary encoder senses the swing amplitude of the swing arm 131.

[0039] For example, in actual work, a fixed air pressure value is applied to the downward pressure cylinder 134, and the piston is pressed downward, so that the tensioning roller 132 presses the diaphragm. At this time, the piston is not fully extended. The rotary encoder 133 records the angle at this time as the initial angle. If the unwinding is too fast, the tension of the diaphragm will decrease under the condition that the air pressure in the downward pressure cylinder 134 remains unchanged, that is, the pressure on the piston is reduced, and the piston will continue to extend downward, causing the swing arm 131 to swing. The rotary encoder 133 will be able to sense the amplitude of this swing. If the unwinding is too slow, the opposite is true. Therefore, the unwinding speed of the active unwinding motor can be adjusted only by the signal fed back by the rotary encoder 133. This solution can solve the problem of ensuring consistent unwinding speed when the material rolls have different thicknesses.

[0040] Furthermore, a correction sensor 141 is provided in the middle of the guide roller group 140. The correction sensor 141 is a photoelectric sensor for detecting the position of the diaphragm. The correction sensor 141 is electrically connected to the first correction mechanism 200 and forms a feedback control relationship. The correction sensor 141 can sense the position of the unwound diaphragm in the guide roller group 140, which directly affects the position of the film material reaching the dispensing mechanism 300. Therefore, the correction sensor 141 combined with the first correction mechanism 200 solves the problem of feed position deviation at the dispensing mechanism 300, and can achieve real-time adjustment through feedback control.

[0041] Furthermore, the first deviation-correcting mechanism 200 is disposed on the back of the frame, and is located on the same side as the active unwinding motor 110 of the unwinding mechanism 100;

[0042] The first deviation-correcting mechanism 200 is a telescopic mechanism, and its output end can be telescopic, thereby driving the unwinding mechanism 100 as a whole to move horizontally in the length direction of the guide rod 150. It is easy to know that the length direction of the guide rod 150 is perpendicular to the travel direction of the film material on the dispensing mechanism 300. In this embodiment, the first deviation-correcting mechanism 200 adopts an electric cylinder, which can provide a stable push-pull force and control the telescopic distance of its active end.

[0043] Furthermore, the glue dispensing mechanism 300 further includes a glue dispensing platform 320, and the glue dispensing robot 310 moves above the glue dispensing platform 320;

[0044] The dispensing platform 320 is fixed on the frame, and the negative electrode material and the diaphragm material are dispensed through the material slot 321. Furthermore, the X-axis robot arm is arranged on the back of the frame vertical plate, and a space is provided on the frame vertical plate to connect the X-axis robot arm with the Y-axis robot arm through a bracket, so as to reduce the occupation of the front space by the dispensing robot 310.

[0045] Furthermore, a material limiting step 321 is provided on the dispensing platform 320, and the material limiting step 321 limits the unilateral position of the material. Only limiting the unilateral position of the material can meet the processing of materials of different specifications.

[0046] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with the profession can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A dispensing device, characterized in that: It comprises an unwinding mechanism (100), a first deviation-correcting mechanism (200), a glue-dispensing mechanism (300) and a second deviation-correcting mechanism (400) which are arranged in sequence; The output end (210) of the first deflection correcting mechanism (200) is connected to the back side of the unwinding mechanism (100), and the first deflection correcting mechanism (200) is used to adjust the horizontal position of the unwinding mechanism (100); The glue dispensing mechanism (300) comprises a glue dispensing robot (310) movable in three directions of X, Y and Z; The second deviation-correcting mechanism (400) is arranged at the exit position of the glue dispensing mechanism (300).

2. The dispensing device according to claim 1, characterized in that: The unwinding mechanism (100) comprises an active unwinding motor (110), a material roll (120), an unwinding detector (130) and a guide roller group (140); The unwinding mechanism (100) is arranged on a frame via a horizontally arranged guide rod (150), and the active unwinding motor (110) is arranged on the back of the frame to drive the material roll (120) to rotate; The diaphragm on the material roll (120) passes through the material discharge detector (130) and the guide roller group (140) in sequence and is then pulled to the glue dispensing mechanism (300). The material discharge detector (130) is used to detect the material discharge speed to prevent the material from being discharged too slowly or too quickly. The unwinding detector (130) is electrically connected to the active unwinding motor (110) to form a feedback control relationship.

3. The dispensing device according to claim 2, characterized in that: The unwinding detector (130) comprises a swing arm (131), one end of which is rotatably disposed on a mounting plate of the unwinding mechanism (100) and is connected to a rotary encoder (133) via a connecting shaft; A tensioning roller (132) is arranged at the other end of the swing arm (131), and a downward pressing cylinder (134) is arranged on the mounting plate at a middle position corresponding to the swing arm (131). The piston of the downward pressing cylinder (134) is connected to the middle position of the swing arm (131). When the piston of the downward pressing cylinder (134) is pressed downward, the height of one end of the swing arm (131) on which the tensioning roller (132) is mounted decreases, the tensioning roller (132) presses the diaphragm downward, and the rotary encoder (133) senses the swing amplitude of the swing arm (131).

4. The dispensing device according to claim 2, characterized in that: A deviation correction sensor (141) is provided in the middle of the guide roller group (140). The deviation correction sensor (141) is a photoelectric sensor for detecting the position of the diaphragm. The deviation correction sensor (141) is electrically connected to the first deviation correction mechanism (200) to form a feedback control relationship.

5. The dispensing device according to claim 1, characterized in that: The first deviation-correcting mechanism (200) is arranged on the back of the frame and is located on the same side as the active unwinding motor (110) of the unwinding mechanism (100); The first deviation-correcting mechanism (200) is a telescopic mechanism, the output end of which can be telescopic, thereby driving the unwinding mechanism (100) as a whole to move horizontally in the length direction of the guide rod (150).

6. The dispensing device according to claim 1, characterized in that: The glue dispensing mechanism (300) further comprises a glue dispensing platform (320), and the glue dispensing robot (310) moves above the glue dispensing platform (320); The glue dispensing platform (320) is fixed on the frame, and the negative electrode material and the diaphragm material pass through the material slot (321) for glue dispensing.

7. The dispensing device according to claim 6, characterized in that: The glue dispensing platform (320) is provided with a material limiting step (321), and the material limiting step (321) limits the unilateral position of the material.

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