Quantitative and stable glue solution subpackaging equipment and subpackaging method

Abstract

The invention discloses quantitative and stable glue solution split charging equipment and a split charging method, and relates to the field of fluid split charging device.According to the technical scheme, the quantitative and stable glue solution split charging equipment is characterized in that the quantitative and stable glue solution split charging equipment comprises a rack, a rotating disc mechanism is arranged on the rack, and inserting grooves used for loading needle cylinders are formed in the rotating disc mechanism; the rack is further provided with a glue supply mechanism, a split charging mechanism, a plug tightening mechanism, a weighing device and a plug supply mechanism used for providing plugs for the plug tightening mechanism, and the split charging mechanism and the plug tightening mechanism are sequentially arranged in the circumferential direction of the rotary disc mechanism at intervals. When the rotating disc mechanism rotates, the needle cylinders can be driven to sequentially pass through the subpackaging mechanism and the plug tightening mechanism, the subpackaging mechanism is suitable for subpackaging glue liquid in the glue supply mechanism into the needle cylinders along outlets of the needle cylinders, and the plug tightening mechanism is suitable for tightening plugs on the outlets of the needle cylinders filled with the glue liquid. The split charging efficiency and stability are improved, and diversified production requirements can be met.

Description

Technical Field

[0001] The invention relates to the field of fluid dispensing devices, and more specifically, to a quantitative and stable glue dispensing device and a dispensing method. Background Art

[0002] When purchasing fluids such as glue, copper paste, and silver paste, production factories usually ship them in large barrels. When used on site, they are packaged in small containers, such as syringes. The packaging process mostly relies on manual operation, which has problems such as low efficiency and unstable quality.

[0003] In response to the above problems, a Chinese patent with authorization announcement number CN220243617U discloses a syringe solder paste dispensing device, the key points of its technical solution are: including a discharging mechanism fixed on a frame, including a discharging port for discharging solder paste. The clamping mechanism includes a mounting seat and a clamping assembly, the mounting seat can be vertically slidably connected to the frame, the clamping assembly is used to clamp the pull handle, the two clamping assemblies can be laterally slidably connected to the mounting seat, a clamping space is formed between the two clamping assemblies, the two clamping assemblies can be close to each other to reduce the clamping space, or away from each other to increase the clamping space, the clamping mechanism has a discharging position and a stop position, the discharging position is located above the stop position, at the discharging position, the discharging port extends into the bottom of the cylinder, and at the stop position, the discharging port exits the opening of the cylinder. The driving member drives the mounting seat to drive the clamping assembly to slide vertically. When the clamping mechanism is at the discharging position, the driving member drives the clamping mechanism to move toward the stop position at a uniform speed, and the discharging port discharges the material synchronously until the clamping mechanism is at the stop position and then stops discharging.

[0004] Although the above-mentioned packaging equipment can complete the automatic packaging of fluids, it pours glue into the syringe from top to bottom through the discharge pipe. When the solder paste filling is completed in this way, the syringe piston needs to be installed into the syringe. At this time, a large amount of air is easy to enter the syringe, which makes it easy for bubbles to appear inside the solder paste, and some solder paste is easy to flow out from the outlet of the syringe under pressure, resulting in low filling accuracy. At the same time, the packaging equipment can only realize filling, and cannot complete other processes. It has a single function and cannot meet diversified production needs.

[0005] Therefore, a new solution needs to be proposed to solve this problem. Summary of the invention

[0006] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a quantitative and stable glue liquid packaging device and packaging method, which improves the packaging efficiency and stability and can meet diverse production needs.

[0007] The above technical objectives of the present invention are achieved through the following technical solutions: a quantitative and stable glue liquid dispensing equipment, comprising a frame, a turntable mechanism is provided on the frame, a slot for loading a syringe is provided on the turntable mechanism, a glue supply mechanism, a dispensing mechanism, a plug tightening mechanism, a weighing device and a plug feeding mechanism for providing a plug to the plug tightening mechanism are also provided on the frame, the dispensing mechanism and the plug tightening mechanism are arranged in sequence and at intervals along the circumferential direction of the turntable mechanism, and the turntable mechanism can drive the syringe to pass through the dispensing mechanism and the plug tightening mechanism in sequence when the turntable mechanism rotates, the dispensing mechanism is suitable for dispensing the glue liquid in the glue supply mechanism into the syringe along the outlet of the syringe, and the plug tightening mechanism is suitable for tightening the plug on the outlet of the syringe filled with glue liquid.

[0008] In one embodiment, the turntable mechanism includes a servo reduction motor fixed on a frame and a rotating disk fixed on an output end of the servo reduction motor, the slots are arranged in groups of two on the rotating disk, the slots are arranged in a circular array along the circumferential direction of the rotating disk into several groups, the sub-packaging mechanism and the plug tightening mechanism are respectively arranged in two, and the two sub-packaging mechanisms and the two plug tightening mechanisms respectively correspond to the positions of the two slots in each group.

[0009] In one embodiment, the glue supply mechanism includes a first bracket fixed on the frame, a glue storage barrel arranged on the first bracket, an electric cylinder located above the glue storage barrel and fixed on the first bracket, and a piston disc arranged on the output end of the electric cylinder, the piston disc is slidably adapted to the glue storage barrel, and a closed chamber is formed between the piston disc and the glue storage barrel, and a vacuum tube for evacuating the closed chamber is also connected to the piston disc;

[0010] The packaging mechanism comprises a second bracket fixed on the frame, a first linear servo module and a second linear servo module respectively fixed on the second bracket in the longitudinal direction, a pressure block is fixed on the output end of the first linear servo module, and the pressure block is suitable for pressing the syringe onto the turntable mechanism, a displacement sensor is fixed on the output end of the second linear servo module, and a pin that can abut against the syringe piston of the syringe is connected to the displacement sensor, a first cylinder is fixed on the second bracket below the turntable mechanism, a glue outlet nozzle adapted to the outlet of the syringe is fixed on the output end of the first cylinder, a glue outlet pipe is arranged in communication between the bottom of the glue storage barrel and the glue outlet nozzle, and a valve is arranged on the glue outlet pipe.

[0011] In one of the embodiments, the plug feeding mechanism includes a vibrating loading tray, a material guiding jig connected to the output end of the vibrating loading tray, and a material receiving jig capable of receiving the plug on the material guiding jig. The material guiding jig is provided with a conveying trough along the discharge direction of the vibrating loading tray. The material guiding jig is also provided with two pushing troughs vertically and penetrating the conveying trough. The spacing between the two pushing troughs is equal to the spacing between the two slots in each group. The material receiving jig is provided with two material receiving troughs. The spacing between the two material receiving troughs is equal to the spacing between the two pushing troughs. The frame is provided with a material receiving jig that can be driven to slide so that the two material receiving troughs A second cylinder is aligned with or staggered between the two pushing grooves, and a third cylinder is also fixed on the frame. A push block is fixed on the output end of the third cylinder. Under the drive of the third cylinder, the push block can push the plug along the pushing groove into the receiving groove. A fourth cylinder is fixed on the frame along the direction of the pushing groove on one side of the material guiding fixture, and a fifth cylinder is fixed longitudinally on the upper edge of the output end of the fourth cylinder. A material picking plate is extended above the conveying groove along the upper edge of the output end of the fifth cylinder, and two vacuum suction heads are arranged on the material picking plate. The two vacuum suction heads can take the two plugs in the two receiving grooves and place them on the two plug tightening mechanisms.

[0012] In one of the embodiments, the vibrating loading tray, the second cylinder and the third cylinder are embedded in the frame.

[0013] In one of the embodiments, the plug tightening mechanism includes a linear slide longitudinally embedded and fixed in the frame, a connecting seat fixed on the linear slide, a driving motor fixed on the connecting seat, and a three-jaw chuck fixed on the output end of the driving motor. A top plate is provided on the frame opposite to the plug tightening mechanism and above the rotating disk through a support rod. When the plug tightening mechanism drives the plug to rise and lifts the syringe, the end of the syringe away from the plug can be supported on the top plate.

[0014] In one of the embodiments, a rubber layer for increasing the contact friction between the top plate and the syringe is provided on the top plate toward the syringe, and an elastic buffer is provided on the top plate around the rubber layer, and the surface of the elastic buffer is a smooth plane. When the plug tightening mechanism is working, the syringe contacts the rubber layer, and after the plug tightening mechanism is reset and retracted, the elastic buffer pushes the syringe downward, so that the syringe is separated from the rubber layer.

[0015] In one of the embodiments, the frame is provided with a hood, one side of the hood has a full opening, and a baffle is provided on the frame at the fully open position and on the side close to the turntable mechanism, the baffle is provided with an operating port for manually taking and placing the syringe, and the weighing device is an electronic scale, which is arranged on one side of the baffle.

[0016] In one of the embodiments, the quantitative and stable glue liquid filling equipment also includes a PLC controller, and the glue supply mechanism, filling mechanism and electronic scale are electrically connected to the PLC controller respectively. The electronic scale is used to weigh the syringe filled with glue liquid and send the weighing data to the PLC controller in real time.

[0017] In one embodiment, a method for packaging glue liquid, using any of the quantitative and stable glue liquid packaging equipment, comprises the following steps:

[0018] S1 loads the syringe onto the slot of the turntable mechanism, and the turntable mechanism drives the syringe to move to the bottom of the dispensing mechanism. The first linear servo module drives the pressing block to descend to press the syringe onto the turntable mechanism. The second linear servo module first drives the ejector pin to descend, and after pressing the syringe piston of the syringe into place, it drives the ejector pin to move upward to a waiting position.

[0019] S2, the electric cylinder drives the piston plate to press down a certain distance, and ensure that the piston plate does not contact the liquid surface of the glue, and the vacuum tube is evacuated. After maintaining the pressure for a period of time, the piston plate continues to press down, and the glue is transported to the glue outlet nozzle along the glue outlet pipe, and is dispensed into the syringe from the bottom to the top from the glue outlet nozzle;

[0020] S3, after completing step S2, when the glue pushes the syringe piston upward to the waiting position, the ejector continues to move upward to the target setting value of the displacement sensor, the glue outlet pipe stops discharging glue, and the glue liquid is packaged in the syringe;

[0021] S4, the turntable mechanism drives the syringe filled with glue to the top of the plug tightening mechanism, the plug feeding mechanism provides the plug to the plug tightening mechanism, the plug tightening mechanism drives the plug to move up, and after the syringe is held against the top plate, the plug tightening mechanism drives the plug to rotate, thereby tightening the plug on the outlet of the syringe to achieve the sealing of the syringe;

[0022] S5. Place the sealed syringe on a weighing device, and place it on the next station after weighing.

[0023] S6. The weighing data is transmitted to the PLC controller in real time. The PLC controller adjusts the glue output of the glue supply mechanism in real time according to the weighing data, so that the glue loading amount of the subsequent syringe is infinitely close to the target weighing value.

[0024] To sum up, the present invention has the following beneficial effects: different from the method of filling glue into the syringe from top to bottom in the prior art, the present invention divides the glue liquid into the syringe along the outlet of the syringe through the filling mechanism, which can more effectively control the flow path of the glue liquid and reduce the generation of bubbles. At the same time, it avoids the problem of glue liquid overflowing from the syringe outlet under the pressure caused by the installation of the piston after the filling is completed, and by vacuuming the glue storage barrel, some bubbles carried by the glue liquid itself can be removed, thereby improving the filling accuracy and stability; at the same time, the present invention integrates multiple functions such as glue supply, filling, and plug tightening into one, which not only realizes the automatic filling of glue liquid, but also can complete the subsequent packaging process, can adapt to diverse production needs, and improve the flexibility and applicability of the production line. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of a quantitative and stable glue liquid dispensing device according to an embodiment of the present application;

[0026] Figure 2 This is a schematic diagram of the internal structure of a quantitative and stable glue solution dispensing device according to an embodiment of the present application;

[0027] Figure 3 It is a structural schematic diagram of a filling mechanism in a quantitative and stable glue filling device according to an embodiment of the present application;

[0028] Figure 4 It is a structural schematic diagram of a plug feeding mechanism in a quantitative and stable glue liquid dispensing device according to an embodiment of the present application;

[0029] Figure 5 It is a structural schematic diagram of a material guiding fixture and a material receiving fixture of a plug feeding mechanism in a quantitative and stable glue liquid dispensing device according to an embodiment of the present application;

[0030] Figure 6 It is a structural schematic diagram of the plug tightening mechanism in the quantitative and stable glue liquid filling equipment of the embodiment of the present application.

[0031] In the figure: 1, frame; 2, turntable mechanism; 21, rotating disk; 22, servo reduction motor; 3, machine cover; 4, baffle; 5, glue supply mechanism; 51, first bracket; 52, glue storage barrel; 53, piston plate; 54, electric cylinder; 55, vacuum tube; 6, sub-packaging mechanism; 61, second bracket; 62, first linear servo module; 63, pressure block; 64, second linear servo module; 65, displacement sensor; 66, ejector pin; 67, first cylinder; 68, glue nozzle; 7, Plug tightening mechanism; 71, linear slide; 72, connecting seat; 73, driving motor; 74, three-jaw chuck; 75, top plate; 8, plug feeding mechanism; 81, vibration loading tray; 82, material guiding fixture; 821, conveying trough; 822, pushing trough; 83, material receiving fixture; 831, material receiving trough; 84, pushing block; 85, second cylinder; 86, third cylinder; 87, fourth cylinder; 88, fifth cylinder; 89, material taking plate; 891, vacuum suction head; 9, weighing device. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] like Figure 1 and Figure 2 As shown, the embodiment of the present application provides a quantitative and stable glue liquid dispensing device, including a frame 1, on which a turntable mechanism 2 is provided, and a slot for loading a syringe is provided on the turntable mechanism 2. The frame 1 is also provided with a glue supply mechanism 5, a dispensing mechanism 6, a plug tightening mechanism 7, a weighing device 9, and a plug feeding mechanism 8 for providing a plug to the plug tightening mechanism 7, and the dispensing mechanism 6 and the plug tightening mechanism 7 are arranged in sequence and at intervals along the circumferential direction of the turntable mechanism 2. When the turntable mechanism 2 rotates, it can drive the syringe to pass through the dispensing mechanism 6 and the plug tightening mechanism 7 in sequence. The dispensing mechanism 6 is suitable for dispensing the glue liquid in the glue supply mechanism 5 into the syringe along the outlet of the syringe. The plug tightening mechanism 7 is suitable for tightening the plug on the outlet of the syringe filled with glue.

[0034] The above-mentioned packaging equipment is particularly suitable for the packaging of silver paste, which is a high-viscosity colloidal liquid containing tiny particles of silver.

[0035] When the above-mentioned filling equipment is working, when the syringe rotates to the bottom of the filling mechanism 6, the glue supply mechanism 5 and the filling mechanism 6 start to work, and the glue liquid is injected into the syringe along the entrance of the syringe. When the syringe rotates to the bottom of the plug tightening mechanism 7, the plug feeding mechanism 8 provides a plug to the plug tightening mechanism 7, and the plug tightening mechanism 7 tightens the plug on the outlet of the syringe filled with glue liquid. After the plug is tightened, the syringe is manually removed and weighed by the weighing device 9.

[0036] In another embodiment, a labeling device and a code scanning device may be added between the plug tightening mechanism 7 and the weighing device 9. The labeling device is used to label the syringe, and the code scanning device is used to scan the label to identify the syringe information.

[0037] In the above-mentioned manner, unlike the prior art method of filling glue into the syringe from top to bottom, the above-mentioned filling device fills the glue liquid into the syringe along the outlet of the syringe through the filling mechanism 6, which can more effectively control the flow path of the glue liquid and reduce the generation of bubbles. At the same time, it avoids the problem of the glue liquid overflowing from the outlet of the syringe under the pressure caused by the piston installation after the filling is completed, and by vacuuming the glue storage barrel 52, the bubbles carried by part of the glue liquid itself can be removed, thereby improving the filling accuracy and stability; at the same time, the above-mentioned filling device integrates multiple functions such as glue supply, filling, and plug tightening into one, which not only realizes the automatic filling of the glue liquid, but also can complete the subsequent packaging process, can adapt to diverse production needs, and improve the flexibility and applicability of the production line. In general, compared with the traditional process that requires centrifugal degassing again after the glue filling is completed, the present invention basically does not generate bubbles, can reduce the centrifugal degassing process, and further improves work efficiency.

[0038] In this embodiment, Figure 2 As shown, the turntable mechanism 2 includes a servo reduction motor 22 fixed on the frame 1 and a rotating disk 21 fixed on the output end of the servo reduction motor 22. The slots are arranged in groups of two on the rotating disk 21. The slots are arranged in a circular array along the circumferential direction of the rotating disk 21 into several groups. The sub-packaging mechanism 6 and the plug tightening mechanism 7 are respectively arranged in two. The two sub-packaging mechanisms 6 and the two plug tightening mechanisms 7 respectively correspond to the positions of the two slots in each group, so that double-station operation can be realized, which is beneficial to improving work efficiency.

[0039] In this embodiment, Figure 2As shown, the glue supply mechanism 5 includes a first bracket 51 fixed on the frame 1, a glue storage barrel 52 arranged on the first bracket 51, an electric cylinder 54 located above the glue storage barrel 52 and fixed on the first bracket 51, and a piston disc 53 arranged on the output end of the electric cylinder 54, a pressure sensor is arranged between the piston disc 53 and the output end of the electric cylinder 54, the piston disc 53 is slidably adapted to the glue storage barrel 52, and a closed chamber is formed between the piston disc 53 and the glue storage barrel 52, and a vacuuming tube 55 for vacuuming the closed chamber is also connected to the piston disc 53, and also includes a vacuuming device and an electric ball valve, the vacuuming tube 55 is connected to the electric ball valve, and the electric ball valve is connected to the vacuuming device for vacuuming. The vacuuming device can adjust the vacuuming time, intensity and other parameters in real time according to the detection value of the pressure sensor, so that the glue storage barrel 52 maintains a suitable pressure, so that the bubbles inside the glue liquid float to the liquid surface, and finally discharged along the vacuuming device in the form of gas, thereby minimizing the bubbles in the glue liquid.

[0040] like Figure 6 As shown, the packaging mechanism 6 includes a second bracket 61 fixed on the frame 1, a first linear servo module 62 and a second linear servo module 64 respectively fixed on the second bracket 61 in the longitudinal direction, a pressure block 63 is fixed on the output end of the first linear servo module 62, and the pressure block 63 is suitable for pressing the syringe onto the turntable mechanism 2, a displacement sensor 65 is fixed on the output end of the second linear servo module 64, and a pin 66 that can abut against the syringe piston of the syringe is connected to the displacement sensor 65, a first cylinder 67 is fixed on the second bracket 61 below the turntable mechanism 2, a glue nozzle 68 adapted to the outlet of the syringe is fixed on the output end of the first cylinder 67, a glue outlet pipe is arranged between the bottom of the glue storage barrel 52 and the glue outlet nozzle 68, and a valve is arranged on the glue outlet pipe.

[0041] The first linear servo module 62 and the second linear servo module 64 both adopt linear modules with a screw nut and a servo motor structure in the prior art.

[0042] When the glue supply mechanism 5 and the filling mechanism 6 are working, the first linear servo module 62 drives the pressure block 63 to descend to press the syringe onto the turntable mechanism 2. The second linear servo module 64 first drives the ejector pin 66 to descend, and after pressing the syringe piston of the syringe into place, drives the ejector pin 66 to move upward to a waiting position. This position should ensure that the ejector pin 66 will not interfere with the syringe piston during the glue filling process. The electric cylinder 54 drives the piston plate 53 to press down a distance first, and ensures that the piston plate 53 does not contact the liquid surface of the glue. The vacuum tube 55 is vacuumed. After maintaining the pressure for a period of time, the piston plate 53 continues to be pressed down. The glue is transported to the glue outlet nozzle 68 along the glue outlet pipe, and is filled into the syringe from bottom to top by the glue outlet nozzle 68. In this way, there is basically no air in the syringe itself, so that after the glue is filled, it is not easy for bubbles to appear in the syringe.

[0043] In this embodiment, Figure 4 and Figure 5 As shown, the plug feeding mechanism 8 includes a vibrating loading tray 81, a material guide jig 82 connected to the output end of the vibrating loading tray 81, and a material receiving jig 83 that can receive the plug on the material guide jig 82. The material guide jig 82 is provided with a conveying groove 821 along the discharge direction of the vibrating loading tray 81, and the material guide jig 82 is also provided with two push grooves 822 vertically and penetrating the conveying groove 821, and the spacing between the two push grooves 822 is equal to the spacing between the two slots in each group. The material receiving jig 83 is provided with two material receiving grooves 831, and the spacing between the two material receiving grooves 831 is equal to the spacing between the two push grooves 822. The frame 1 is provided with a second cylinder 85 that can drive the material receiving jig 83 to slide so that the two material receiving grooves 831 are aligned with or staggered from the two push grooves 822. A third cylinder 86 is also fixed on the frame 1, and a push block 84 is fixed on the output end of the third cylinder 86. Under the drive of the third cylinder 86, the push block 84 can push the plug along the push groove 822 into the receiving groove 831. A fourth cylinder 87 is fixed on the frame 1 along the direction of the push groove 822 on one side of the material guide fixture 82, and a fifth cylinder 88 is fixed longitudinally on the output end of the fourth cylinder 87. A material pick-up plate 89 is extended above the conveying groove 821 on the output end of the fifth cylinder 88, and two vacuum suction heads 891 are provided on the material pick-up plate 89. The two vacuum suction heads 891 can pick up and place the two plugs in the two receiving grooves 831 onto the two plug tightening mechanisms 7.

[0044] When the above-mentioned plug feeding mechanism 8 is working, the vibrating loading plate 81 starts to vibrate, arranges the plugs in an orderly manner and transports them to its output end, and the plugs move forward along the conveying groove 821 of the material guiding fixture 82. During this process, the receiving groove 831 and the pushing groove 822 are staggered, so that the receiving fixture 83 can be blocked on one side of the pushing groove 822, so that the plugs can be arranged in an orderly manner in the conveying groove 821 and the pushing groove 822. When the conveying groove 821 and the pushing groove 822 are full of plugs, the receiving groove 831 is aligned with the pushing groove 822, and the pushing block 84 pushes the plug in the pushing groove 822 into the receiving groove 831. The receiving groove 831 is staggered with the pushing groove 822 again, so that the plug can be accurately positioned in the receiving groove 831, and the vacuum suction head 891 sucks the plug from the receiving groove 831 and moves to the plug tightening mechanism 7, and releases the plug to the plug tightening mechanism 7.

[0045] In the above method, through the coordinated work of the vibrating loading tray 81, the material guiding jig 82, the material receiving jig 83, the vacuum suction head 891, the second cylinder 85, the third cylinder 86, the fourth cylinder 87 and the fifth cylinder 88, the automatic sorting, conveying, pushing and picking up of the plugs are realized, forming an efficient and continuous automated feeding process, which greatly improves production efficiency and reduces manual intervention and waiting time.

[0046] In this embodiment, the vibrating loading tray 81, the second cylinder 85 and the third cylinder 86 are embedded in the frame 1. This arrangement makes the structure of the entire equipment more compact and the production layout more flexible.

[0047] In this embodiment, Figure 6 As shown, the plug tightening mechanism 7 includes a linear slide 71 embedded and fixed in the frame 1 along the longitudinal direction, a connecting seat 72 fixed on the linear slide 71, a driving motor 73 fixed on the connecting seat 72, and a three-jaw chuck 74 fixed on the output end of the driving motor 73. The linear slide 71 can specifically be a linear motor. A top plate 75 is provided on the frame 1 opposite to the plug tightening mechanism 7 and above the rotating disk 21 through a support rod. When the plug tightening mechanism 7 drives the plug to rise and lifts the syringe, the end of the syringe away from the plug can be supported on the top plate 75.

[0048] During the operation of the above-mentioned plug tightening mechanism 7, in the initial state, the plug is clamped and fixed at a certain initial position by the three-jaw chuck 74, the linear slide 71 is at the starting end of its stroke, and the syringe is located on the rotating disk 21 waiting to be tightened by the plug. When the plug needs to be tightened, the linear slide 71 moves upward in the longitudinal direction. As the plug rises, the plug gradually approaches and contacts the open end of the syringe. When it continues to rise, the plug lifts the syringe. When the syringe is lifted to a certain height, its end away from the plug will abut against the top plate 75 to form a stable supporting structure. After the syringe is stably supported, the plug tightening mechanism 7 can start to tighten the plug, which has the advantages of simple structure and good tightening effect.

[0049] In this embodiment, a rubber layer (not shown) is provided on the top plate 75 facing the syringe, and is used to increase the contact friction between the top plate 75 and the syringe. An elastic buffer (not shown) is provided on the top plate 75 around the rubber layer. The surface of the elastic buffer is a smooth plane. The elastic buffer can be specifically a metal spring. When the plug tightening mechanism 7 is working, the syringe contacts the rubber layer. After the plug tightening mechanism 7 is reset and retracted, the elastic buffer pushes the syringe downward, so that the syringe is separated from the rubber layer.

[0050] In the above manner, the rubber layer has excellent friction properties and can significantly increase the contact friction between the top plate 75 and the syringe. When the plug tightening mechanism 7 drives the plug to rise and lifts the syringe, the syringe can be stably supported on the top plate 75 and is not prone to sliding or offset, which is conducive to ensuring the accuracy and reliability of the tightening operation. The surface of the elastic buffer is a smooth plane, which makes it possible for the elastic buffer to cooperate with the syringe's own gravity to easily push the syringe downward after the plug tightening mechanism 7 is reset and retracted, so that it is separated from the rubber layer, avoiding the syringe from being retained or stuck on the top plate 75, and ensuring the smooth operation of the equipment. It should be noted that since the syringe and the rubber layer rarely adhere to each other and the adhesion force will not be very large, the elasticity of the elastic buffer does not need to be very large.

[0051] In this embodiment, Figure 1 As shown, the frame 1 is provided with a hood 3, one side of the hood 3 has a full opening, and the frame 1 is located at a fully open position and is also provided with a baffle 4 on the side close to the turntable mechanism 2, and the baffle 4 is provided with an operating port for manually taking and placing the syringe, and the weighing device 9 is an electronic scale, which is arranged on one side of the baffle 4.

[0052] In the above manner, the design of the hood 3 provides necessary protection for the equipment, and can effectively prevent splashes, dust or other debris from entering the interior of the equipment during operation, thereby ensuring the normal operation of the equipment and extending its service life. At the same time, one side of the hood 3 has a full opening, so that the operator can easily approach the interior of the equipment for maintenance and operation. The baffle 4 is set on the side close to the turntable mechanism 2 at the full opening, providing the operator with a safe operating area. The operating opening on the baffle 4 is of moderate size, which is convenient for the operator to manually take and place the syringe, and can effectively prevent the occurrence of misoperation or accidents.

[0053] In this embodiment, the quantitative and stable glue liquid filling equipment also includes a PLC controller. The glue supply mechanism 5, the plug tightening mechanism 7, the filling mechanism 6 and the electronic scale are electrically connected to the PLC controller respectively. The electronic scale is used to weigh the syringe filled with glue liquid and send the weighing data to the PLC controller in real time. The PLC controller adjusts the glue output of the glue supply mechanism 5 in real time according to the weighing data, so that the glue filling amount of the subsequent syringe is infinitely close to the target weighing value.

[0054] In the above method, the PLC controller can receive the weighing data sent by the electronic scale in real time, and accurately adjust the glue output of the glue supply mechanism 5 according to these data. This closed-loop control system ensures that the amount of glue in each subsequent syringe can be infinitely close to the preset target weighing value, thereby greatly improving the accuracy and stability of packaging. The specific control method adopts the existing technology and will not be repeated in this embodiment.

[0055] The present invention also discloses a method for packaging glue liquid, using any quantitative and stable glue liquid packaging device, comprising the following steps:

[0056] S1 loads the syringe onto the slot of the turntable mechanism 2, and the turntable mechanism 2 drives the syringe to move to the bottom of the dispensing mechanism 6. The first linear servo module 62 drives the pressing block 63 to descend to press the syringe onto the turntable mechanism 2. The second linear servo module 64 first drives the ejector pin 66 to descend, and after pressing the syringe piston of the syringe into place, drives the ejector pin 66 upward to a waiting position.

[0057] S2, the electric cylinder 54 drives the piston plate 53 to press down a certain distance, and ensures that the piston plate 53 does not contact the liquid surface of the glue, and the vacuum tube 55 is evacuated. After the pressure is maintained for a period of time, the piston plate 53 continues to press down, and the glue is transported to the glue outlet nozzle 68 along the glue outlet pipe, and is dispensed into the syringe from the bottom to the top by the glue outlet nozzle 68;

[0058] S3, after completing step S2, when the glue pushes the syringe piston upward to the waiting position, the ejector pin 66 is continuously pushed upward to the target setting value of the displacement sensor 65, and the glue outlet pipe stops discharging glue, completing the dispensing of the glue in the syringe;

[0059] S4, the turntable mechanism 2 drives the syringe filled with glue to the top of the plug tightening mechanism 7, the plug feeding mechanism 8 provides the plug to the plug tightening mechanism 7, the plug tightening mechanism 7 drives the plug to move up, and after the syringe is held against the top plate 75, the plug tightening mechanism 7 drives the plug to rotate, so that the plug is tightened on the outlet of the syringe to achieve the sealing of the syringe;

[0060] S5, placing the sealed syringe on the weighing device 9, and placing it on the next station after weighing;

[0061] S6, the weighing data is transmitted to the PLC controller in real time, and the PLC controller adjusts the glue output of the glue supply mechanism 5 in real time according to the weighing data, so that the glue loading amount of the subsequent syringe is infinitely close to the target weighing value. It should be noted that the specific algorithm of step S6 adopts the existing technology and is not repeated in this embodiment.

[0062] By adopting the packaging equipment and packaging method of the present application, it is found through multiple tests that the packaging error of the glue liquid in the syringe can be controlled within the range of ±0.1%, with high packaging accuracy.

[0063] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A quantitative and stable glue liquid dispensing device, comprising a frame (1), wherein a turntable mechanism (2) is arranged on the frame (1), and characterized in that: The turntable mechanism (2) is provided with a slot for loading a syringe, and the frame (1) is also provided with a glue supply mechanism (5), a dispensing mechanism (6), a plug tightening mechanism (7), a weighing device (9), and a plug supply mechanism (8) for providing plugs to the plug tightening mechanism (7). The dispensing mechanism (6) and the plug tightening mechanism (7) are sequentially arranged at intervals along the circumferential direction of the turntable mechanism (2). When the turntable mechanism (2) rotates, the syringe can be driven to pass through the dispensing mechanism (6) and the plug tightening mechanism (7) sequentially. The dispensing mechanism (6) is suitable for dispensing the glue liquid in the glue supply mechanism (5) into the syringe along the outlet of the syringe, and the plug tightening mechanism (7) is suitable for tightening the plug on the outlet of the syringe filled with glue liquid.

2. The quantitative and stable glue liquid packaging equipment according to claim 1 is characterized in that: The turntable mechanism (2) comprises a servo reduction motor (22) fixed on a frame (1) and a rotating disk (21) fixed on an output end of the servo reduction motor (22); the slots are arranged in groups of two on the rotating disk (21); the slots are arranged in a ring array along the circumferential direction of the rotating disk (21) into a plurality of groups; the sub-packaging mechanism (6) and the plug tightening mechanism (7) are respectively arranged in two; the two sub-packaging mechanisms (6) and the two plug tightening mechanisms (7) respectively correspond to the positions of the two slots in each group.

3. The quantitative and stable glue liquid packaging equipment according to claim 1 is characterized in that: The glue supply mechanism (5) comprises a first bracket (51) fixed on the frame (1), a glue storage barrel (52) arranged on the first bracket (51), an electric cylinder (54) located above the glue storage barrel (52) and fixed on the first bracket (51), and a piston disc (53) arranged on the output end of the electric cylinder (54), the piston disc (53) and the glue storage barrel (52) are slidably matched, and a closed chamber is formed between the piston disc (53) and the glue storage barrel (52), and a vacuum pipe (55) is also connected to the piston disc (53) for vacuumizing the closed chamber; The packaging mechanism (6) comprises a second bracket (61) fixed on the frame (1), a first linear servo module (62) and a second linear servo module (64) respectively fixed on the second bracket (61) in the longitudinal direction, a pressure block (63) is fixed on the output end of the first linear servo module (62), and the pressure block (63) is suitable for pressing the syringe onto the turntable mechanism (2), a displacement sensor (65) is fixed on the output end of the second linear servo module (64), and a pin (66) that can abut against the syringe piston of the syringe is connected to the displacement sensor (65), a first cylinder (67) is fixed on the second bracket (61) below the turntable mechanism (2), a glue outlet nozzle (68) adapted to the outlet of the syringe is fixed on the output end of the first cylinder (67), and a glue outlet pipe is provided between the bottom of the glue storage barrel (52) and the glue outlet nozzle (68), and a valve is provided on the glue outlet pipe.

4. The quantitative and stable glue liquid packaging equipment according to claim 2 is characterized in that: The plug feeding mechanism (8) comprises a vibrating loading tray (81), a material guiding jig (82) connected to the output end of the vibrating loading tray (81), and a material receiving jig (83) capable of receiving the plug on the material guiding jig (82); a conveying groove (821) is arranged on the material guiding jig (82) along the material discharging direction of the vibrating loading tray (81); two pushing grooves (822) are arranged on the material guiding jig (82) perpendicularly and penetrating the conveying groove (821); the spacing between the two pushing grooves (822) is equal to the spacing between two slots in each group; two material receiving grooves (831) are arranged on the material receiving jig (83); the spacing between the two material receiving grooves (831) is equal to the spacing between the two pushing grooves (822); and a material receiving jig (83) that can be driven to slide is arranged on the frame (1) so that the two material receiving grooves (831) are aligned with or staggered from the two pushing grooves (8 A second cylinder (85) of the material guide fixture (82) is provided on the frame (1); a third cylinder (86) is also fixed on the frame (1); a push block (84) is fixed on the output end of the third cylinder (86); under the drive of the third cylinder (86), the push block (84) can push the plug along the push groove (822) into the material receiving groove (831); a fourth cylinder (87) is fixed on the frame (1) on one side of the material guide fixture (82) along the direction of the push groove (822); a fifth cylinder (88) is fixed on the output end of the fourth cylinder (87) in the longitudinal direction; a material taking plate (89) is provided on the output end of the fifth cylinder (88) extending above the conveying groove (821); two vacuum suction heads (891) are provided on the material taking plate (89); the two vacuum suction heads (891) can take and place two plugs in the two material receiving grooves (831) onto the two plug tightening mechanisms (7).

5. The quantitative and stable glue liquid packaging equipment according to claim 4 is characterized in that: The vibrating loading tray (81), the second cylinder (85) and the third cylinder (86) are embedded in the frame (1).

6. The quantitative and stable glue liquid packaging equipment according to claim 1 is characterized in that: The plug tightening mechanism (7) comprises a linear slide (71) embedded and fixed in the frame (1) in the longitudinal direction, a connecting seat (72) fixed on the linear slide (71), a driving motor (73) fixed on the connecting seat (72), and a three-jaw chuck (74) fixed on the output end of the driving motor (73). A top plate (75) is provided on the frame (1) opposite to the plug tightening mechanism (7) and above the rotating disk (21) through a supporting rod. When the plug tightening mechanism (7) drives the plug to rise and lifts the syringe, the end of the syringe away from the plug can be abutted against the top plate (75).

7. The quantitative and stable glue liquid packaging equipment according to claim 6 is characterized in that: A rubber layer for increasing the contact friction between the top plate (75) and the syringe is arranged on the top plate (75) toward the syringe, and an elastic buffer is arranged on the top plate (75) around the rubber layer, and the surface of the elastic buffer is a smooth plane. When the plug tightening mechanism (7) is working, the syringe contacts the rubber layer. After the plug tightening mechanism (7) is reset and retracted, the elastic buffer pushes the syringe downward, so that the syringe is separated from the rubber layer.

8. The quantitative and stable glue liquid packaging equipment according to claim 1 is characterized in that: The frame (1) is provided with a hood (3), one side of which is fully open. The frame (1) is also provided with a baffle (4) at a side close to the turntable mechanism (2) at the fully open position. The baffle (4) is provided with an operating port for manually taking in and placing the syringe. The weighing device (9) is an electronic scale, which is provided on one side of the baffle (4).

9. The quantitative and stable glue liquid packaging equipment according to claim 8, characterized in that: The quantitative and stable glue liquid dispensing equipment also includes a PLC controller. The glue supply mechanism (5), the dispensing mechanism (6) and the electronic scale are respectively electrically connected to the PLC controller. The electronic scale is used to weigh the syringe filled with glue liquid and send the weighing data to the PLC controller in real time.

10. A method for dispensing glue liquid, using the quantitative and stable glue liquid dispensing equipment according to any one of claims 1 to 9, characterized in that: The steps include: S1 loads the syringe onto the slot of the turntable mechanism (2), the turntable mechanism (2) drives the syringe to be transferred to the bottom of the dispensing mechanism (6), the first linear servo module (62) drives the pressing block (63) to descend to press the syringe onto the turntable mechanism (2), the second linear servo module (64) first drives the ejector pin (66) to descend, presses the syringe piston of the syringe into place, and then drives the ejector pin (66) to move upward to a waiting position; S2, the electric cylinder (54) drives the piston plate (53) to press down a certain distance, and ensures that the piston plate (53) does not contact the liquid surface of the glue liquid, and the vacuum tube (55) is evacuated. After the pressure is maintained for a period of time, the piston plate (53) continues to press down, and the glue liquid is transported to the glue outlet nozzle (68) along the glue outlet nozzle (68), and is dispensed into the syringe from bottom to top; S3, after completing step S2, when the glue liquid pushes the syringe piston upward to the waiting position, the ejector pin (66) continues to move upward to the target setting value of the displacement sensor (65), and the glue outlet pipe stops discharging glue, completing the dispensing of the glue liquid in the syringe; S4, the turntable mechanism (2) drives the syringe filled with glue to move to the top of the plug tightening mechanism (7), the plug feeding mechanism (8) provides the plug to the plug tightening mechanism (7), the plug tightening mechanism (7) drives the plug to move up, and after the syringe is held against the top plate (75), the plug tightening mechanism (7) drives the plug to rotate, thereby tightening the plug on the outlet of the syringe, thereby achieving the sealing of the syringe; S5. After the sealing is completed, the syringe is placed on the weighing device (9), and after the weighing is completed, it is placed on the next station.

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