CN201848371U - Glue dispensing device - Google Patents

Abstract

The utility model discloses a glue dispensing device, which mainly provides a glue dispensing device which can rapidly block a glue outlet pipeline and prevent from dragging glue solution at a glue outlet, so that the glue outlet amount can be more accurately controlled; the glue dispensing device is characterized in that a glue outlet pipeline between the material pushing rod and the glue outlet is provided with a material feeding pipe connected to the glue barrel, and a switching shaft linked with the material pushing rod is arranged at the joint of the material feeding pipe and the glue outlet pipeline. When the material pushing rod moves back and forth, the switching shaft rotates to quickly switch the glue outlet pipeline to be conducted or not, so as to achieve the effect of quickly and reliably preventing glue from dripping.

Description

Dispensing device

technical field

The utility model relates to the structural improvement of the glue dispensing device, and aims to provide a glue dispensing device that can quickly switch whether the glue outlet pipeline is conducting or not, so as to achieve the effect of quickly and reliably blocking glue dripping. the

Background technique

Press, the traditional glue dispensing device is to provide glue under the control of timing and quantity, mainly using the bidirectional motor as the power source, so that under the forward rotation of the bidirectional motor, it synchronously drives the feeding rod connected to it, so that the glue is fed along The path of the helical ramp on the rod is introduced into the syringe to inject the output needle into the required dispensing process. And after the dispensing process finishes dispensing one package, the bidirectional motor is reversed to make the feeding rod form a suction state, preventing the glue from dripping toward the syringe when the next package is not positioned. the

However, because there is a gap between the end of the feeding rod facing the syringe and the needle, a little glue is likely to remain, and it is impossible to simply use the feeding rod to form a back-suction action to achieve the effect of blocking the dripping of the glue, resulting in There is still an error in setting the amount of glue required for the package in advance, which not only causes the glue to drip out of the package during the dispensing process, but also the remaining glue is used for the next dispensing operation of the package to be packaged During the process, it will be pushed onto the package by the next glue, causing excessive defects in the amount of glue dispensed on the package, and affecting the quality, appearance and performance of the package's dispensing technology. . the

China Taiwan Announcement No. M259651 "Improvement of Dispenser Structure" new patent document also discloses a dispenser structure to prevent the residue of glue from affecting the quality of the next product to be packaged. The structure of the dispenser includes glue The outlet end of the rubber tube is connected with the inlet of the feeding area, and the upper end of the feeding area is connected with a rotating first power source, and the lower end of the feeding area is equipped with a needle, and a pipeline is formed inside the feeding area. A tapered tapered guide is formed at the head of the needle, and a feeding rotary rod with a conical head is movable at the pipe. The feeding rotary rod is connected to a second power source that can be displaced up and down. The other end of the second power source Combined with the output end of the first power source. the

Accordingly, when dispensing is stopped, the second power source can be used to control the conical head of the feeding rotary rod to completely block the guide part of the feeding area, thereby achieving the purpose of preventing glue residue. However, the conical head used to block the guide part of the feeding area is driven by the second power source to produce an action effect of moving up and down relative to the guide part of the pipeline; therefore, when the dispensing is stopped, the The cone head must complete the downward displacement stroke and completely seal with the guide part under the feeding area before it has the effect of sealing the feeding area pipeline. the

However, such a linear reciprocating displacement method may still allow the glue to seep out before completing all strokes, and it is more likely that the glue will be pushed to the guide part when the cone head is descending. On the contrary, the appearance and performance of the package will be affected. the

Utility model content

The technical problem solved by the utility model is to provide a dispensing device that can quickly block the glue outlet pipeline when dispensing is stopped, and will not affect the glue liquid at the glue outlet, so that the glue output can be controlled more accurately. device. the

The technical scheme of the utility model is: a glue dispensing device, including: a pipe seat with a glue outlet pipe and a glue outlet; The pipe seat is close to the glue outlet pipe of the pipe seat; a push rod is relatively installed on the glue outlet pipe of the pipe seat, and can move back and forth in the glue outlet pipe of the pipe seat driven by a driving component; The switching shaft is located at the joint between the glue outlet pipe of the pipe seat and the feed pipe, and the switch shaft is provided with a discharge valve hole that communicates with the pipe between the push rod of the pipe seat and the glue outlet, and There is a filling valve hole that communicates with the pipe between the pusher rod that constitutes the pipe seat and the feed pipe; When the rubber pipeline moves back and forth, it cooperates with the switching change of connecting the rubber outlet pipeline with the discharge valve hole or connecting the glue outlet pipeline with the stuffing valve hole. the

Wherein, the switching shaft produces a linkage effect with the push rod through a linkage assembly. the

The drive assembly is a pneumatic cylinder. the

The linkage assembly is composed of a rotary cylinder and a set of connecting rods connected between the rotary cylinder and the switching shaft. the

The linkage assembly is composed of a motor and a set of connecting rods connected between the motor and the switching shaft. the

The driving assembly is a pneumatic cylinder; the linkage assembly is composed of a rotary cylinder and a set of connecting rods connected between the rotary cylinder and the switching shaft. the

The driving assembly is a pneumatic cylinder; the linkage assembly is composed of a motor and a set of connecting rods connected between the motor and the switching shaft. the

The pipe seat, the rubber cartridge, the push rod, the switching shaft, the driving assembly and the linkage assembly are installed on a bracket. the

The pipe seat, the rubber cartridge, the push rod, the switch shaft, the drive assembly, and the linkage assembly are installed on a bracket, and the drive assembly and the linkage assembly are formed by a set of upper cover and lower cover surrounded. the

The glue dispensing device of the present utility model includes: a glue cylinder for containing the glue, a glue outlet pipe for receiving the glue, a pusher rod for pushing the glue out of the glue outlet, and a The pusher rod is linked to control the switching axis of the glue outlet pipeline. Among them, there is a feeding pipe connected to the rubber barrel between the pusher rod and the glue outlet of the glue outlet pipe, and the switchover axis is set at At the joint between the feed pipe and the glue outlet pipe, the switching shaft is provided with a discharge valve hole that forms a pipeline between the push rod and the glue outlet, and a pipe that forms the pipe between the feed pipe and the push rod. Connected packing valve hole. the

When the overall dispensing device is in operation, the switch shaft is in the condition that the pipe between the filling valve hole and the push rod is communicated, and the pipe between the push rod and the glue outlet is blocked when the push rod has not yet advanced to the glue outlet. In the broken state, the glue in the glue cartridge can enter the pipeline space in front of the push rod through the feed pipe. the

When the push rod pushes towards the glue outlet, the switching shaft will turn from the discharge valve hole to the push rod and the glue outlet because of the linkage with the push rod. At this time, the push rod continues to move towards the glue outlet In the case of propulsion, the glue liquid in the pipeline space in front of it is pushed out toward the glue outlet by the push rod to complete the dispensing action. the

And, when the dispensing is stopped and the push rod turns to move in the return direction, the switching shaft is linked with the push rod, so that the pipeline between the filling valve hole and the push rod is connected in advance, and the The blocked state of the pipeline between the push rod and the glue outlet can not only prevent the glue from dripping, but also simultaneously execute the process of allowing the glue to enter the pipeline space in front of the push rod when the push rod continues to move toward the return direction. Glue action. the

In particular, as long as the action of changing the forward/reverse direction of the switching axis is used, the conduction of the glue pipeline can be quickly switched, and during the action of changing the forward/reverse direction of the switching axis, there is no change in relative position, so that the Affect the glue at the glue outlet, so the amount of glue can be controlled more accurately. the

Description of drawings

Figure 1 is an exploded view of the structure of the dispensing device of the present invention. the

Fig. 2 is a cross-sectional view of the structure of the dispensing device of the present invention. the

Fig. 3 is a schematic diagram of the action of the linkage assembly in the present invention. the

Fig. 4 is a cross-sectional view of the structure of the glue outlet pipeline in the conduction state in the utility model. the

Fig. 5 is a structural cross-sectional view of the glue outlet pipeline in a blocked state in the utility model. the

【Description of figure number】

10 pipe seat; 11 glue outlet pipe; 12 glue outlet; 20 rubber cartridge; 21 feed pipe; 30 push rod; 40 switching shaft; 41 discharge valve hole; 42 filling valve hole; ; 70 linkage assembly; 71 rotary cylinder; 72 connecting rod; 80 bracket; 91 upper cover; 92 lower cover.       

Detailed ways

As shown in Fig. 1 structural exploded view of the dispensing device of the present utility model and the sectional view of the structure of the dispensing device of the present utility model in Fig. Material rod 30, and a switching shaft 40; Wherein:

The pipe base 10 is provided with a glue outlet pipe 11 for the pusher rod 30 to move back and forth therebetween. 12.

The glue cartridge 20 is used to contain glue, and is provided with a feed pipe 21 connected to the glue outlet pipe 11 of the pipe seat 10 near the glue outlet 12 . the

The push rod 30 is oppositely installed at the glue outlet pipe 11 of the pipe seat 10 , and can move back and forth in the glue outlet pipe 11 of the pipe seat 10 driven by a driving assembly 60 . the

The switch shaft 40 is set at the connection between the glue outlet pipe 11 of the pipe seat 10 and the feed pipe 21, and the switch shaft 40 is provided with a pipe between the push rod 30 of the pipe seat 10 and the glue outlet 12. The discharge valve hole 41 communicated, and the stuffing valve hole 42 is provided with a pipeline communicating between the push rod 30 constituting the pipe seat 10 and the feed pipe 21 . the

And, the switching shaft 40 can be linked with the pusher rod 30, so that when the pusher rod 30 moves back and forth on the glue outlet pipe 11 of the pipe seat 10, it cooperates to connect the glue outlet pipe through the discharge valve hole 41 11 or by the switching of the filling valve hole 42 connecting the glue outlet pipeline 11. the

The lifting switching shaft 40 produces the effect of interlocking with the push rod 20 through a linkage assembly 70; during implementation, the drive assembly 60 is a pneumatic cylinder for driving the push rod 20 to move back; The moving assembly 70 is composed of a rotary cylinder 71 (or a motor) and a set of connecting rods 72 connected between the rotary cylinder 71 (or motor) and the switch shaft 40 . the

When the pneumatic cylinder (drive assembly 60) moves, it synchronously drives the rotary cylinder 71 forward and backward, and under the drive of the connecting rod 72, as shown in Figure 3, the switching shaft 40 can be turned to change direction. Effect. the

Furthermore, as shown in Fig. 1 and Fig. 2, the pipe seat 10, rubber tube 20, pusher rod 30, switching shaft 40, driving assembly 60, and linkage assembly 70 can be installed on a bracket 80, and are formed by A set of upper cover 91 and lower cover 92 encloses the drive assembly 60 and the linkage assembly 70, which not only can form the proper shielding effect on them, but also make the appearance of the overall dispensing device more complete and convenient for operation. The assembly between the overall dispensing unit and the applied dispensing equipment. the

As shown in Figure 4, when the push rod 20 is pushed toward the glue outlet 12, the switch shaft 40 is rotated through the discharge valve hole 41 to the push rod 30 and the glue outlet due to the linkage with the push rod 30. At this time, when the push rod 30 continues to advance toward the glue outlet 12, the push rod 30 will push the glue in the pipeline space in front of it toward the glue outlet 12 to complete the preset glue dispensing action. the

And, when dispensing is stopped and the pusher rod 30 is turned to move toward the return direction, as shown in Figure 5, the switching shaft 40 is due to the interlocking movement with the pusher rod 30, so that the filling valve hole 42 and the The pipes between the push rods 30 are connected, and the state of blocking the pipes between the push rods 30 and the glue outlet 12 can not only prevent the glue from dripping, but also when the push rods 30 continue to move toward the return direction, Synchronously execute the glue filling action that allows the glue to enter the pipeline space in front of the push rod 30 . the

In particular, as long as the action of changing the forward/reverse rotation of the switching shaft 40 is used, the conduction or non-conduction of the glue pipe 11 can be quickly switched, and there is no change in the relative position during the action of changing the forward/reverse rotation of the switching shaft 40 , so as not to affect the glue at the glue outlet, so the amount of glue can be controlled more accurately, so as to effectively control the appearance and performance of the package. the

Claims (9)

1. A dispensing device, characterized in that, comprising: A pipe seat, which is provided with a glue outlet pipe and a glue outlet; A rubber cartridge for containing glue liquid is provided with a feeding pipe connected to the glue outlet pipe of the pipe seat near the glue outlet; A pusher rod is relatively installed on the glue outlet pipe of the pipe seat, and can move back and forth in the glue outlet pipe of the pipe seat driven by a driving component; A switching shaft is arranged at the junction of the glue outlet pipe of the pipe seat and the feed pipe, and a discharge valve hole is provided on the switch shaft to communicate with the pipe between the push rod and the glue outlet of the pipe seat, And a stuffing valve hole is provided with a pipe communicating between the push rod constituting the pipe seat and the feeding pipe; and The switching shaft can be linked with the pusher rod so that when the pusher rod moves back and forth on the glue outlet pipe of the pipe seat, it can cooperate with the glue outlet pipe connected by the discharge valve hole or the glue outlet pipe connected by the stuffing valve hole. Glue pipe switching changed. 2 . The glue dispensing device according to claim 1 , wherein the switching shaft is linked with the push rod through a linkage assembly. 3 . 3. The glue dispensing device according to claim 1 or 2, wherein the driving assembly is a pneumatic cylinder. 4. The glue dispensing device according to claim 2, wherein the linkage assembly is composed of a rotary cylinder and a set of connecting rods connected between the rotary cylinder and the switching shaft. 5. The glue dispensing device as claimed in claim 2, wherein the linkage assembly is composed of a motor and a set of connecting rods connected between the motor and the switching shaft. 6. The glue dispensing device according to claim 2, wherein the drive assembly is a pneumatic cylinder; the linkage assembly consists of a rotary cylinder and a set of linkages connected between the rotary cylinder and the switching shaft. composed of rods. 7. The dispensing device as claimed in claim 2, wherein the driving assembly is a pneumatic cylinder; the linkage assembly is formed by a motor and a set of connecting rods connected between the motor and the switching shaft composition. 8 . The glue dispensing device as claimed in claim 2 , wherein the pipe seat, the rubber cartridge, the push rod, the switching shaft, the driving assembly, and the linkage assembly are mounted on a bracket. 9. The glue dispensing device according to claim 2, wherein the pipe base, the rubber cartridge, the pusher rod, the switching shaft, the driving assembly, and the linkage assembly are installed on a bracket, and The driving assembly and the linkage assembly are surrounded by a set of upper cover and lower cover.

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