High-precision glue injection equipment for glue barrel

Abstract

The utility model provides high-precision glue injection equipment for a glue barrel, and relates to the technical field of glue injection equipment. The device comprises a glue storage tank, a glue outlet pipe, a bayonet socket, a console, a stop valve and an air cylinder, glue is stored in the glue storage tank, a pressurization opening and a glue outlet are formed in a tank body of the glue storage tank, and the pressurization opening is connected with a pressure source through a pipeline; the bayonet socket is arranged on the console, a glue filling hole is formed in the bayonet socket, one end of the glue outlet pipe is connected with the glue outlet, the other end of the glue outlet pipe is communicated with the glue filling hole, and a glue outlet needle head of the glue cylinder can be inserted into the glue filling hole and is detachably connected with the bayonet socket; the stop valve is electrically connected with the console and can control the on-off of the glue outlet pipe; the air cylinder is arranged above the bayonet socket, and a piston rod of the air cylinder can extend downwards and is detachably connected with a core rod of the rubber barrel. According to the glue cylinder, the quality of glue in the glue cylinder cannot be reduced, and the glue cylinder has good precision during gluing.

Description

Technical Field

[0001] This application relates to the technical field of glue injection equipment, and particularly relates to a high-precision glue injection equipment for a glue cylinder. Background Art

[0002] The glue injection equipment for a glue cylinder is a device used to fill an empty glue cylinder with glue so that other dispensing equipment can use the glue cylinder filled with glue to apply glue to the material to be processed.

[0003] The existing glue injection equipment for a glue cylinder generally includes a glue storage pressure tank, a mounting frame, and a telescopic cylinder. The glue storage pressure tank stores glue under high pressure. There is a glue outlet on one side of the tank body of the glue storage pressure tank, and a clamping structure adapted to the glue outlet needle of the syringe-type glue cylinder is provided in this glue outlet. The mounting frame is arranged on the tank body of the glue storage pressure tank, the telescopic cylinder is arranged on the mounting frame, and a clamping structure adapted to the core rod of the glue cylinder is provided on the piston rod of the telescopic cylinder. The user can first clamp the glue outlet needle of the glue cylinder to be filled with glue in the glue outlet, then drive the piston rod of the telescopic cylinder to extend and clamp the core rod of the glue cylinder to this piston rod, and finally drive the piston rod of the telescopic cylinder to retract into the cylinder body to suck the glue in the glue storage pressure tank into the glue cylinder.

[0004] However, since the aperture of the glue outlet needle of the glue cylinder is much smaller than the diameter of the rubber plug on the core rod, the speed at which the piston rod of the telescopic cylinder pulls out the core rod is very easy to exceed the speed at which the glue in the glue storage pressure tank enters the glue outlet needle. Subsequently, a negative pressure is formed at the glue outlet needle, causing the outside air to be sucked into the glue cylinder together, which not only affects the quality of the glue in the glue cylinder but also affects the accuracy during glue application of the glue cylinder.

[0005] In view of this, a high-precision glue injection equipment for a glue cylinder is needed. Utility Model Content

[0006] In order to solve the problem that when the existing glue injection equipment for a glue cylinder fills glue into the glue cylinder, air bubbles are likely to appear in the glue cylinder, affecting the quality of the glue in the glue cylinder and the accuracy during subsequent glue application, this application provides a high-precision glue injection equipment for a glue cylinder.

[0007] This application provides a high-precision glue injection equipment for a glue cylinder, adopting the following technical solutions: including a glue storage tank, a glue outlet pipe, a socket, a control console, a stop valve, and a cylinder. Glue is stored inside the glue storage tank. There are a pressurizing port and a glue outlet on the tank body of the glue storage tank. The pressurizing port is connected to a pressure source through a pipeline;

[0008] The socket is arranged on the control console, and there is a glue injection hole on this socket. One end of the glue outlet pipe is connected to the glue outlet, and the other end of the glue outlet pipe is communicated with the glue injection hole. The glue outlet needle of the glue cylinder can be inserted into the glue injection hole and is detachably connected to the socket;

[0009] The stop valve is electrically connected to the console and can control the on-off of the glue outlet pipe;

[0010] The cylinder is arranged above the socket, and the piston rod of the cylinder can extend downward and be detachably connected to the core rod of the glue cylinder.

[0011] By adopting the above technical solution, the user can first insert the glue outlet needle of the glue cylinder into the glue injection hole and connect it to the socket, then drive the piston rod of the cylinder to extend downward to connect with the core rod of the glue cylinder and apply a downward pressure to the core rod, and then open the stop valve through the console, so that the high-pressure glue in the glue storage tank can first pass through the glue outlet pipe and then be injected into the glue cylinder from the needle hole of the glue outlet needle and push the rubber plug in the glue cylinder upward. Finally, after the glue in the glue cylinder reaches the predetermined injection volume, the stop valve is closed through the console, so that the glue injection operation of the glue pipe can be completed. Since the piston rod of the cylinder will always apply a downward pressure to the rubber plug during the whole glue injection process, the pressure at the needle hole of the glue outlet needle is always higher than the external air pressure, so that it can be ensured that the external air will not be sucked into the glue cylinder together, which can not only ensure that the quality of the glue in the glue cylinder will not decline, but also make the glue cylinder have good accuracy when applying glue.

[0012] Specifically, it further includes a liquid level sensor, which is electrically connected to the console and can detect the liquid level of the glue in the glue cylinder, and the console can control the opening and closing of the stop valve according to the detection result of the liquid level sensor.

[0013] By adopting the above technical solution, the liquid level sensor can detect the liquid level of the glue in the glue cylinder and feedback the detection result to the console, so that the console can control the opening or closing of the stop valve according to the detection result of the liquid level sensor, so as to realize automatic stop of glue injection.

[0014] Specifically, the glue injection hole is opened at the top of the socket, and a clamping member is arranged in the glue injection hole. The glue outlet needle can be inserted into the glue injection hole and clamped with the clamping member. A communication hole leading to the inside of the glue cylinder is opened on one side of the socket close to the glue storage tank, and the glue outlet pipe is inserted into the communication hole.

[0015] By adopting the above technical solution, the glue outlet needle can be connected to the socket by clamping with the clamping member.

[0016] Furthermore, the clamping member is a reed, which is arranged on the inner wall of the glue injection hole. A clamping groove is opened on the side wall of the glue outlet needle. When the glue outlet needle is inserted into the glue injection hole, the reed can enter the clamping groove.

[0017] By adopting the above technical solution, when the glue outlet needle is inserted into the glue filling hole, the reed can enter the clamping groove so that the glue outlet needle can be connected to the socket.

[0018] Further, a one-way valve is provided in the communication hole.

[0019] By adopting the above technical solution, during glue injection, the glue can pass through the one-way valve and enter the glue filling hole from the glue outlet tube; after the glue injection is completed, the one-way valve can block the outside air so that the outside air cannot come into contact with the glue in the glue outlet tube through the communication hole.

[0020] Further, a ventilation hole leading to the outside is formed on the inner wall of the glue filling hole. When the glue outlet needle is inserted into the glue filling hole, the side wall of the glue outlet needle can abut against the inner wall of the glue filling hole and block the ventilation hole.

[0021] By adopting the above technical solution, during glue injection, the side wall of the glue outlet needle can abut against the inner wall of the glue filling hole and block the ventilation hole so that the outside air will not enter the glue filling hole from the ventilation hole; after the glue injection is completed and the user pulls out the glue outlet needle from the glue filling hole, the outside air can enter the glue filling hole from the ventilation hole and balance the pressure inside the glue filling hole, so as to avoid the situation that the glue in the glue cylinder flows back into the glue filling hole due to the pressure in the glue filling hole being less than the outside air pressure when the glue outlet needle is pulled out from the glue filling hole.

[0022] Specifically, the stop valve includes a mounting frame, a driving cylinder and a throttling block. The mounting frame is arranged on the console. The glue outlet tube passes through the gap between the mounting frame and the console. The driving cylinder is arranged on the mounting frame and is electrically connected to the console. The piston rod of the driving cylinder is connected to the throttling block, and the piston rod can extend downward and press the tube body of the glue outlet tube between the throttling block and the console.

[0023] By adopting the above technical solution, the driving cylinder can drive its piston rod to extend downward and press the tube body of the glue outlet tube between the throttling block and the console so as to cut off the glue flow in the glue outlet tube.

[0024] Specifically, a pressure gauge for detecting the pressure inside the glue storage tank is provided on the glue storage tank.

[0025] By adopting the above technical solution, the user can observe the pressure inside the glue storage tank through the pressure gauge.

[0026] In summary, the present application includes the following beneficial technical effects:

[0027] It includes a glue storage tank, a glue outlet pipe, a socket, a control console, a stop valve and a cylinder. Glue is stored inside the glue storage tank. A pressure port and a glue outlet are provided on the tank body of the glue storage tank. The pressure port is connected to a pressure source through a pipeline; the socket is arranged on the control console, and a glue filling hole is provided on the socket. One end of the glue outlet pipe is connected to the glue outlet, and the other end of the glue outlet pipe communicates with the glue filling hole. The glue outlet needle of the glue cartridge can be inserted into the glue filling hole and is detachably connected to the socket; the stop valve is electrically connected to the control console and can control the on-off of the glue outlet pipe; the cylinder is arranged above the socket, and the piston rod of the cylinder can extend downward and is detachably connected to the core rod of the glue cartridge. The piston rod of the cylinder can always apply a downward pressure to the rubber stopper during the entire glue injection process, so that the pressure at the needle hole of the glue outlet needle is always higher than the external air pressure, thereby ensuring that the external air will not be sucked into the glue cartridge together, which can not only ensure that the quality of the glue in the glue cartridge will not decline, but also make the glue cartridge have good accuracy during glue application. Brief Description of the Drawings

[0028] Figure 1 is a perspective view of a high-precision glue injection device for a glue cartridge of the present application;

[0029] Figure 2 is a schematic cross-sectional view taken along the central axis of the glue cartridge of a high-precision glue injection device of the present application, in which the control console, the glue storage tank and part of the glue outlet pipe are deleted;

[0030] Figure 3 is Figure 2 a schematic enlarged view of area A in

[0031] Reference numerals: 1, glue storage tank; 11, pressure gauge; 2, glue outlet pipe; 3, socket; 31, clamping member; 32, check valve; 33, vent hole; 4, control console; 5, stop valve; 51, mounting bracket; 52, driving cylinder; 53, throttle block; 6, cylinder; 61, magnetic attraction member; 7, liquid level sensor; 8, glue cartridge; 81, glue outlet needle; 82, core rod. Detailed Description of the Invention

[0032] Figure 1 is a perspective view of a high-precision glue injection device for a glue cartridge of the present application, Figure 2 is a schematic cross-sectional view taken along the central axis of the glue cartridge of a high-precision glue injection device of the present application, in which the control console, the glue storage tank and part of the glue outlet pipe are deleted. Refer to Figure 1 and Figure 2, a high-precision glue injection device for a rubber cylinder provided by this application includes: a glue storage tank 1, a glue outlet pipe 2, a socket 3, a control console 4, a stop valve 5, a cylinder 6, and a liquid level sensor 7. Glue is stored inside the glue storage tank 1. A pressurizing port and a glue outlet are provided on the tank body of the glue storage tank 1. The pressurizing port is connected to a pressure source through a pipeline. A pressure gauge 11 for detecting the pressure inside the glue storage tank 1 is also provided on the glue storage tank 1, so that the user can observe the pressure inside the glue storage tank 1 through the pressure gauge 11; the socket 3 is arranged on the control console 4, and a glue injection hole is provided on the socket 3. One end of the glue outlet pipe 2 is connected to the glue outlet, and the other end of the glue outlet pipe 2 is communicated with the glue injection hole. The glue outlet needle 81 of the rubber cylinder 8 can be inserted into the glue injection hole and detachably connected to the socket 3. The stop valve 5 is electrically connected to the control console 4 and can control the on-off of the glue outlet pipe 2; the cylinder 6 is arranged above the socket 3, and a magnetic part 61 capable of adsorbing the core rod 82 of the rubber cylinder 8 is provided on the piston rod of the cylinder 6. The liquid level sensor 7 is electrically connected to the control console 4 and can detect the liquid level of the glue in the rubber cylinder 8. The control console 4 can control the opening and closing of the stop valve 5 according to the detection result of the liquid level sensor 7.

[0033] Through the above settings, the user can first insert the glue outlet needle 81 of the rubber cylinder 8 into the glue injection hole and connect it to the socket 3, then drive the piston rod of the cylinder 6 to extend downward to connect with the core rod 82 of the rubber cylinder 8 and apply a downward pressure to the core rod 82, and then open the stop valve 5 through the control console 4, so that the high-pressure glue in the glue storage tank 1 can first pass through the glue outlet pipe 2 and then be injected into the rubber cylinder 8 from the needle hole of the glue outlet needle 81 and push the rubber plug in the rubber cylinder 8 upward. The liquid level sensor 7 can detect the liquid level of the glue in the rubber cylinder 8 and feedback the detection result to the control console 4. After the glue in the rubber cylinder 8 reaches the predetermined injection amount, the control console 4 can control the stop valve 5 to close according to the detection result of the liquid level sensor 7, so as to be able to automatically stop the glue injection and complete the glue injection operation of the rubber tube. Since the piston rod of the cylinder 6 will always apply a downward pressure to the rubber plug during the entire glue injection process, the pressure at the needle hole of the glue outlet needle 81 is always higher than the external air pressure, so that it can be ensured that the external air will not be sucked into the rubber cylinder 8 together, which can not only ensure that the quality of the glue in the rubber cylinder 8 will not decline, but also make the rubber cylinder 8 have good precision during glue application.

[0034] It should be noted that in order to ensure that the glue in the glue outlet pipe 2 can push the rubber plug, the core rod 82, and the piston rod of the cylinder 6 upward, the air pressure of the cylinder 6 should be set to be less than the pressure of the glue in the glue storage tank 1. For example, the air pressure of the cylinder 6 is set to be one-half of the pressure of the glue in the glue storage tank 1.

[0035] Figure 3 is Figure 2 The schematic enlarged view of area A in, in which the clamping part is shown. See Figure 1 and Figure 3, a glue injection hole is formed at the top of the socket 3. A pair of clamping members 31 are oppositely arranged in the glue injection hole. The clamping members 31 are spring pieces, and each spring piece is arranged on the inner wall of the glue injection hole. A clamping groove is formed on the side wall of the glue outlet needle 81. When the glue outlet needle 81 is inserted into the glue injection hole, each spring piece can enter a corresponding clamping groove; a communication hole leading to the inside of the glue injection cylinder 8 is formed on one side of the socket 3 close to the glue storage tank 1, and the glue outlet pipe 2 is inserted into the communication hole; a one-way valve 32 is arranged at the top of the communication hole. During glue injection, the glue can pass through the one-way valve 32 and enter the glue injection hole from the glue outlet pipe 2; after the glue injection is completed, the one-way valve 32 can block the outside air so that the outside air cannot contact the glue in the glue outlet pipe 2 through the communication hole.

[0036] See Figure 1 and Figure 3 , a vent hole 33 leading to the outside is formed on the inner wall of the glue injection hole. When the glue outlet needle 81 is inserted into the glue injection hole, the side wall of the glue outlet needle 81 can abut against the inner wall of the glue injection hole and block the vent hole 33. Through the above setting, during glue injection, the side wall of the glue outlet needle 81 can abut against the inner wall of the glue injection hole and block the vent hole 33 so that the outside air does not enter the glue injection hole from the vent hole 33; when the glue injection is completed and the user pulls out the glue outlet needle 81 from the glue injection hole, the outside air can enter the glue injection hole from the vent hole 33 and balance the pressure in the glue injection hole, so as to avoid the situation that the glue in the glue cylinder 8 flows back into the glue injection hole due to the pressure in the glue injection hole being less than the outside air pressure when the glue outlet needle 81 is pulled out from the glue injection hole.

[0037] See Figure 1 and Figure 2 , the stop valve 5 includes a mounting bracket 51, a driving cylinder 52 and a throttling block 53. The mounting bracket 51 is arranged on the control console 4, and the glue outlet pipe 2 passes through the gap between the mounting bracket 51 and the control console 4. The driving cylinder 52 is arranged on the mounting bracket 51 and is electrically connected to the control console 4. The piston rod of the driving cylinder 52 is connected to the throttling block 53, and the piston rod can extend downward and press the pipe body of the glue outlet pipe 2 between the throttling block 53 and the control console 4. Through the above setting, the driving cylinder 52 can drive its piston rod to extend downward and press the pipe body of the glue outlet pipe 2 between the throttling block 53 and the control console 4, so as to cut off the glue flow in the glue outlet pipe 2.

[0038] The working principle of a high-precision glue injection device for a glue cylinder of the present application during use is specifically as follows:

[0039] It includes a glue storage tank 1, a glue outlet pipe 2, a socket 3, a control console 4, a stop valve 5 and a cylinder 6. Glue is stored inside the glue storage tank 1. A pressurizing port and a glue outlet are provided on the tank body of the glue storage tank 1. The pressurizing port is connected to a pressure source through a pipeline; the socket 3 is arranged on the control console 4, and a glue filling hole is provided on the socket 3. One end of the glue outlet pipe 2 is connected to the glue outlet, and the other end of the glue outlet pipe 2 communicates with the glue filling hole. The glue outlet needle 81 of the glue cartridge 8 can be inserted into the glue filling hole and is detachably connected to the socket 3; the stop valve 5 is electrically connected to the control console 4 and can control the on-off of the glue outlet pipe 2; the cylinder 6 is arranged above the socket 3. The piston rod of the cylinder 6 can extend downward and is detachably connected to the core rod 82 of the glue cartridge 8. The piston rod of the cylinder 6 can always apply a downward pressure to the rubber stopper during the entire glue injection process, so that the pressure at the needle hole of the glue outlet needle 81 is always higher than the external air pressure, thereby ensuring that the outside air will not be sucked into the glue cartridge 8 together. This can not only ensure that the quality of the glue in the glue cartridge 8 will not decline, but also enable the glue cartridge 8 to have good accuracy during glue application.

[0040] It should be noted that the above are all preferred embodiments of the present application, and do not limit the protection scope of the present application accordingly. Therefore, all equivalent changes made according to the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A high-precision glue injection device for a rubber cartridge, used for injecting glue into a syringe-type rubber cartridge, characterized in that: The invention comprises a glue storage tank (1), a glue outlet pipe (2), a socket (3), a control console (4), a stop valve (5) and a cylinder (6); the glue storage tank (1) stores glue inside; a pressurizing port and a glue outlet are provided on the body of the glue storage tank (1); the pressurizing port is connected to a pressure source through a pipeline; The socket (3) is arranged on the console (4), and a glue injection hole is arranged on the socket (3), one end of the glue outlet pipe (2) is connected to the glue outlet, and the other end of the glue outlet pipe (2) is connected to the glue injection hole, and the glue outlet needle (81) of the glue cylinder (8) can be inserted into the glue injection hole and is detachably connected to the socket (3); The stop valve (5) is electrically connected to the control console (4) and is capable of controlling the on and off of the rubber outlet pipe (2); The cylinder (6) is arranged above the socket (3); the piston rod of the cylinder (6) can extend downward and be detachably connected to the core rod (82) of the rubber cylinder (8).

2. The high-precision glue injection device for a glue cartridge according to claim 1, characterized in that: It also includes a liquid level sensor (7), which is electrically connected to the control console (4) and can detect the liquid level of the glue in the rubber cylinder (8), and the control console (4) can control the switch of the stop valve (5) according to the detection result of the liquid level sensor (7).

3. The high-precision glue injection device for a glue cartridge according to claim 1, characterized in that: The top of the socket (3) is provided with the glue injection hole, and a clamping piece (31) is provided in the glue injection hole. The glue discharge needle (81) can be inserted into the glue injection hole and clamped with the clamping piece (31). A connecting hole leading to the glue cylinder (8) is provided on one side of the socket (3) close to the glue storage tank (1), and the glue discharge pipe (2) is inserted into the connecting hole.

4. The high-precision glue injection device for a glue cartridge according to claim 3, characterized in that: The clamping member (31) is a spring leaf, which is arranged on the inner wall of the glue injection hole. A clamping groove is provided on the side wall of the glue discharge needle (81). When the glue discharge needle (81) is inserted into the glue injection hole, the spring leaf can enter the clamping groove.

5. The high-precision glue injection device for a glue cartridge according to claim 3, characterized in that: A one-way valve (32) is provided in the communication hole.

6. The high-precision glue injection device for a glue cartridge according to claim 5, characterized in that: A vent hole (33) leading to the outside is provided on the inner wall of the glue injection hole. When the glue discharge needle (81) is inserted into the glue injection hole, the side wall of the glue discharge needle (81) can abut against the inner wall of the glue injection hole and block the vent hole (33).

7. The high-precision glue injection device for a glue cartridge according to claim 1, characterized in that: The stop valve (5) comprises a mounting frame (51), a driving cylinder (52) and a shutoff block (53); the mounting frame (51) is arranged on the control console (4); the rubber outlet pipe (2) passes through a gap between the mounting frame (51) and the control console (4); the driving cylinder (52) is arranged on the mounting frame (51) and is electrically connected to the control console (4); a piston rod of the driving cylinder (52) is connected to the shutoff block (53), and the piston rod can extend downward and press the pipe body of the rubber outlet pipe (2) between the shutoff block (53) and the control console (4).

8. The high-precision glue injection device for a glue cartridge according to claim 1, characterized in that: The glue storage tank (1) is provided with a pressure gauge (11) for detecting the pressure inside the glue storage tank (1).

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