Anti-semi-blocking rubber mixer

Abstract

The present invention discloses a semi-blocking-proof glue mixer, comprising a glue storage mechanism and a glue mixing mechanism, wherein the glue storage mechanism comprises at least two sealed glue storage barrels, the glue mixing mechanism comprises a glue mixing head, and glue delivery pipes are respectively arranged between all the glue storage barrels and the glue mixing head, and the glue delivery pipes are provided with glue delivery mechanisms; further comprising a weight measuring device for measuring the weight of the glue storage barrels; the weight measuring device comprises a placement platform for placing the glue storage barrels, and at least three gravity sensors are evenly distributed in an annular manner on the placement platform. The semi-blocking-proof glue mixer of the present invention can monitor the glue delivery pipes in real time to prevent semi-blocking.

Description

Technical Field

[0001] The invention relates to a rubber mixer, in particular to a rubber mixer capable of detecting whether a rubber delivery pipe is half-blocked. Background Art

[0002] In the printing and packaging industry, solvent-free lamination is an environmentally friendly lamination process. With the vigorous promotion and promotion of this process in China, solvent-free lamination equipment is widely used in production. In order to meet the needs of high-speed automated production, two-component glue mixers have become an indispensable equipment in the production of solvent-free lamination process.

[0003] Since the medium mixed by the glue mixer is glue with high viscosity, after long-term use, the glue will adhere to the inner wall of the rubber hose, causing the effective aperture of the rubber hose to become smaller, that is, the rubber hose is half-blocked. Since the glue can still flow in the half-blocked rubber hose, how to detect whether the rubber hose is half-blocked is a major difficulty in the prior art. Since the ratio of each component of the glue mixer is strictly required, the ratio between each component is mainly achieved by setting the speed of the gear pump to control the flow rate of each component. If the rubber hose is half-blocked, although the glue can still flow, under the condition of the same speed of the gear pump, the flow rate of the glue will become smaller, thus causing the ratio between the components of the glue mixer to change, and then causing the mixed glue to fail to meet the use requirements. Summary of the invention

[0004] In view of this, an object of the present invention is to provide a semi-blockage-proof rubber mixer, which can monitor the rubber delivery pipe in real time to prevent semi-blockage.

[0005] In order to achieve the above object, the present invention provides the following technical solutions:

[0006] A semi-blockage-proof glue mixer comprises a glue storage mechanism and a glue mixing mechanism, wherein the glue storage mechanism comprises at least two sealed glue storage barrels, and the glue mixing mechanism comprises a glue mixing head, and glue delivery pipes are respectively provided between all the glue storage barrels and the glue mixing heads, and the glue delivery pipes are provided with the glue delivery mechanism; and further comprises a weight measuring device for measuring the weight of the glue storage barrels; the weight measuring device comprises a placement platform for placing the glue storage barrels, and at least three gravity sensors are evenly distributed in a ring on the placement platform.

[0007] Furthermore, the rubber delivery pipe is provided with a pressure sensor for measuring the pressure of the rubber delivery pipe, and the pressure sensor is arranged between the rubber delivery mechanism and the rubber mixing head.

[0008] Furthermore, the gravity sensors are evenly distributed in a ring shape in number of three.

[0009] Furthermore, the glue delivery mechanism includes a motor, a reducer drivingly connected to the motor, and a gear pump drivingly connected to the reducer, and the gear pump is connected to the glue delivery pipe.

[0010] Furthermore, the rubber delivery pipe is provided with a one-way valve located between the gear pump and the rubber mixing head.

[0011] Furthermore, the glue storage barrel comprises a barrel body for storing glue and a barrel cover mounted on the barrel body, and a sealing gasket and a pressing mechanism for pressing and fixing the barrel cover on the barrel body are provided between the barrel body and the barrel cover.

[0012] Furthermore, the clamping mechanism includes a pressure rod fixedly connected to the barrel cover, one end of the pressure rod is provided with a connecting screw, the pressure rod is provided with a hinged joint connected to the connecting screw, and the barrel body is provided with a connecting seat fixedly connected to the connecting screw; the other end of the pressure rod is provided with an open groove, the barrel body is provided with a fastening mounting seat corresponding to the open groove, the fastening mounting seat is hingedly connected to a fastening screw matching the open groove, and the fastening screw is provided with a fastening nut.

[0013] Furthermore, it also includes a vacuum pump for evacuating the two glue storage barrels.

[0014] The beneficial effects of the present invention are:

[0015] The anti-half-blockage glue mixer of the present invention is provided with a weight measuring device. When the glue mixer is running, the weight change rate of the glue storage barrel can be measured in real time to obtain the flow rate of the glue. When the flow rate of the glue is within the set range, the glue delivery pipe is not half-blocked. When the flow rate of the glue is less than the set range, it indicates that the glue delivery pipe is half-blocked and the glue delivery pipe needs to be cleaned. By arranging a plurality of gravity sensors evenly distributed in a ring on the mounting platform, the weight measurement accuracy of the glue storage barrel can be improved and the predictive ability can be improved.

[0016] By installing a pressure sensor on the rubber delivery hose, the pressure inside the rubber delivery hose can be measured in real time. Through the pressure change and the gravity measuring device, it can be more accurately determined whether the rubber delivery hose is half-blocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to make the purpose, technical solution and beneficial effects of the present invention clearer, the present invention provides the following drawings for illustration:

[0018] Figure 1 It is a structural schematic diagram of an embodiment of a semi-blocking-proof rubber mixer of the present invention;

[0019] Figure 2 for Figure 1 Right view of;

[0020] Figure 3for Figure 2 Detailed drawing A;

[0021] Figure 4 is a three-dimensional diagram of the two-component glue mixer of this embodiment;

[0022] Figure 5 Schematic diagram of the pipeline connection of the two-component glue mixer of this embodiment;

[0023] Figure 6 It is a structural schematic diagram of the weight measuring device. DETAILED DESCRIPTION

[0024] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0025] like Figure 1 The figure shows a schematic diagram of the structure of an embodiment of an anti-half-blockage glue mixer of the present invention. The anti-half-blockage glue mixer of the present embodiment comprises a glue storage mechanism and a glue mixing mechanism, the glue storage mechanism comprises at least two sealed glue storage barrels 1, the glue mixing mechanism comprises a glue mixing head 2, and a glue delivery pipe 3 is respectively provided between all the glue storage barrels 1 and the glue mixing head 2, and a glue delivery mechanism is provided on the glue delivery pipe 3. The glue mixer of the present embodiment comprises two glue storage barrels 1. The anti-half-blockage glue mixer of the present embodiment also comprises a weight measuring device for measuring the weight of the glue storage barrel. The weight measuring device comprises a placement platform 20 for placing the glue storage barrel 1, and at least three gravity sensors 21 are evenly distributed in an annular manner on the placement platform 20. The gravity sensors 21 of the present embodiment are evenly distributed in an annular manner to meet the purpose of accurately measuring the weight of the glue storage barrel 1. Preferably, a pressure sensor 22 for measuring the pressure of the glue delivery pipe is provided on the glue delivery pipe 3 of the present embodiment, and the pressure sensor 22 is arranged between the glue delivery mechanism and the glue mixing head 2.

[0026] The anti-half-blocking glue mixer of this embodiment is provided with a weight measuring device. When the glue mixer is in operation, the weight change rate of the glue storage barrel can be measured in real time, and the flow rate of the glue can be obtained. When the flow rate of the glue is within the set range, the glue delivery pipe is not half-blocked. When the flow rate of the glue is less than the set range, it indicates that the glue delivery pipe is half-blocked and the glue delivery pipe needs to be cleaned. By evenly distributing a plurality of gravity sensors 21 in a circular manner on the placement platform 20, the weight measurement accuracy of the glue storage barrel 1 can be improved, and the predictive ability can be improved. By providing a pressure sensor 22 on the glue delivery pipe 3, the pressure in the glue delivery pipe 3 can be measured in real time. Through the pressure change and the gravity measuring device, it can be more accurately judged whether the glue delivery pipe is half-blocked.

[0027] The two glue storage barrels 1 of this embodiment are also provided with a vacuum pump 4 for vacuuming them. The glue delivery mechanism of this embodiment includes a motor 5, a reducer 6 connected to the motor 5, and a gear pump 7 connected to the reducer 6. The gear pump 7 is connected to the glue delivery pipe 3. The glue in the glue storage barrel 1 can be output to the glue mixing head 2 by using the glue delivery mechanism. Preferably, a one-way valve 8 located between the gear pump 7 and the glue mixing head 2 is provided on the glue delivery pipe 3 to prevent the glue from flowing back. The vacuum pump 4 is provided to vacuumize the sealed glue storage barrel 1. When in use, the glue in the glue storage barrel 1 is delivered to the glue mixing head 2 in proportion by the glue delivery mechanism and then output after mixing. When it is necessary to stop, the glue delivery mechanism can be stopped. Since the glue storage barrel 1 has been vacuumed by the vacuum pump, no glue will be output to the glue mixing head 2 under the action of negative pressure, that is, the cutting function is realized. In this way, the output and cutting of glue are realized without using a pneumatic actuator, and there is no defect of reduced service life and difficult maintenance caused by glue leakage of the existing pneumatic actuator.

[0028] Further, the glue storage barrel 1 comprises a barrel body 9 for storing glue and a barrel cover 10 mounted on the barrel body 9, and a sealing gasket and a pressing mechanism for pressing and fixing the barrel cover 10 on the barrel body 9 are provided between the barrel body 9 and the barrel cover 10. The pressing mechanism of this embodiment comprises a pressing rod 11 fixedly connected to the barrel cover 10, one end of the pressing rod 11 is provided with a connecting screw 12, the pressing rod 11 is provided with an articulated joint 13 connected to the connecting screw 12, and the barrel body 9 is provided with a connecting seat 14 fixedly connected to the connecting screw 12, that is, the barrel cover 10 can be rotated by connecting the articulated joint 13 and the connecting seat 14 through the connecting screw 12, so that the barrel cover 10 can be opened and closed conveniently. The other end of the pressure rod 11 is provided with an open groove 15, and a fastening mounting seat 16 is provided on the barrel body 9 corresponding to the open groove 15. A fastening screw 17 cooperating with the open groove 15 is hingedly connected to the fastening mounting seat 16, and a fastening nut 18 is provided on the fastening screw 17. When in use, the fastening screw 17 is screwed into the open groove 15, and the fastening nut 18 is tightened to fix the barrel cover 10 on the barrel body 9. In this way, the airtight performance between the barrel cover 10 and the barrel body 9 can be guaranteed, and the vacuum pump 4 can ensure the vacuum effect. The barrel cover 10 is also provided with a water inlet pipe 19, etc., and the water inlet pipe 19 is provided with a closed valve. When the vacuum pump 4 is vacuuming, these closed valves need to be closed.

[0029] The above-described embodiments are only preferred embodiments for fully illustrating the present invention, and the protection scope of the present invention is not limited thereto. Equivalent substitutions or changes made by those skilled in the art based on the present invention are within the protection scope of the present invention. The protection scope of the present invention shall be subject to the claims.

Claims

1. A semi-blocking-proof glue mixer, comprising a glue storage mechanism and a glue mixing mechanism, wherein the glue storage mechanism comprises at least two sealed glue storage barrels, the glue mixing mechanism comprises a glue mixing head, and glue delivery pipes are respectively arranged between all the glue storage barrels and the glue mixing head, and the glue delivery pipes are provided with a glue delivery mechanism, characterized in that: It also includes a weight measuring device for measuring the weight of the glue storage barrel; the weight measuring device includes a placement platform for placing the glue storage barrel, and at least three gravity sensors are evenly distributed in a ring on the placement platform; The rubber delivery pipe is provided with a pressure sensor for measuring the pressure of the rubber delivery pipe, and the pressure sensor is arranged between the rubber delivery mechanism and the rubber mixing head; The gravity sensors are evenly distributed in a ring shape and are arranged in three numbers; The rubber delivery mechanism comprises a motor, a reducer drivingly connected to the motor, and a gear pump drivingly connected to the reducer, wherein the gear pump is connected to the rubber delivery pipe; The rubber delivery pipe is provided with a one-way valve located between the gear pump and the rubber mixing head; The glue storage barrel comprises a barrel body for storing glue and a barrel cover mounted on the barrel body, a sealing gasket and a pressing mechanism for pressing and fixing the barrel cover on the barrel body are provided between the barrel body and the barrel cover; The clamping mechanism comprises a pressure rod fixedly connected to the barrel cover, one end of the pressure rod is provided with a connecting screw, the pressure rod is provided with a hinged joint connected to the connecting screw, and the barrel body is provided with a connecting seat fixedly connected to the connecting screw; The other end of the pressure rod is provided with an open groove, and a fastening mounting seat is provided on the barrel body corresponding to the open groove, and a fastening screw matched with the open groove is hingedly connected to the fastening mounting seat, and a fastening nut is provided on the fastening screw; Also included is a vacuum pump for evacuating the two glue storage barrels; When the glue mixer is running, the weight change rate of the glue storage barrel is measured in real time to obtain the flow rate of glue. When the flow rate of glue is within the set range, the glue delivery hose is not half-blocked. When the flow rate of glue is less than the set range, it indicates that the glue delivery hose is half-blocked and needs to be cleaned. By evenly distributing multiple gravity sensors in a circular shape on the mounting platform, the weight measurement accuracy of the glue storage barrel is improved, and the predictive ability is improved.

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