Composite cooling device of laminating machine

Abstract

The utility model discloses a composite cooling device of a laminating machine, which comprises a cooling roller and a cooling water circulation system independently connected with the cooling roller, the cooling water circulation system comprises a cooling water tank, a circulating pump, a water inlet pipe and a return pipe, the circulating pump is connected with one end of the cooling roller through a water outlet pipe, and a temperature detection device is arranged on the water outlet pipe. The two ends of the return pipe are connected with the other end of the cooling roller and the middle of the water inlet pipe respectively, the return pipe is further connected with a discharge pipe, a temperature control valve and an electric valve are arranged on the discharge pipe, and a check valve is further arranged at the joint of the return pipe and the water inlet pipe; the cooling roller is provided with the independent cooling water circulation system, and the cooling water circulation system can automatically adjust the temperature of cooling water so as to keep the temperature of the cooling water stable.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of compound cooling devices of membrane laminating machine. BACKGROUND

[0002] The composite working principle of the membrane laminating machine of Tetra Pak is: after plastic particles are melted into liquid by high temperature, they are formed by die head extrusion, and are formed by being combined and adhered with paper;Plastic melt and paper need to be cooled in time to ensure that the adhesion meets the standard, and the cooling temperature also needs to be kept within a certain range value;

[0003] In actual production process, the cooling water in the cooling water pool changes greatly in temperature with the long-time work or shutdown of the equipment, which can cause the temperature of the cooling roller to be too high or too low after being output to the cooling roller, so that the entire composite part is overloaded. SUMMARY

[0004] The utility model aims at overcoming the insufficient of prior art, provide a kind of compound cooling devices of membrane laminating machine, cooling roller is equipped with independent cooling water circulation system, cooling water circulation system can automatically adjust cooling water temperature to keep the stability of cooling water temperature.

[0005] The technical scheme of the utility model is: a kind of compound cooling devices of membrane laminating machine, including cooling roller and the cooling water circulation system independently connected with cooling roller;

[0006] The cooling water circulation system includes cooling water pool, circulating pump, water inlet pipe and backflow pipe, the circulating pump is connected with the one end of cooling roller by water outlet pipe, temperature detection device is arranged on the water outlet pipe, and the two ends of the water inlet pipe are respectively connected with the water inlet of cooling water pool and circulating pump;

[0007] The two ends of the backflow pipe are respectively connected with the other end of cooling roller and the middle part of water inlet pipe, and a discharge pipe is further connected to the backflow pipe, the discharge pipe is arranged at the upstream of the connection place of backflow pipe and water inlet pipe, temperature control valve and electric valve are arranged on the discharge pipe, and check valve is further arranged at the connection place of backflow pipe and water inlet pipe;

[0008] Further comprising controller, the temperature detection device is connected with controller, and the controller controls the opening and closing of check valve by controlling the flow size of temperature control valve and electric valve.

[0009] Further, pressure switch is further arranged at the outlet of check valve, and the pressure switch is connected with controller.

[0010] Further, the outlet end of the discharge pipe is connected with cooling water pool.

[0011] Further, first valve is further arranged on the water outlet pipe, and second valve is further arranged on the water inlet pipe.

[0012] Specifically, the first valve and the second valve are both hand-operated valves.

[0013] Further, the cooling roller is arranged on a rack, a stripping roller is arranged on the rack at the rear end of the cooling roller, a composite roller is arranged on the rack at the front end of the cooling roller, a die head is further arranged above the rack between the cooling roller and the composite roller, and a back pressure roller is further arranged on the rack at the front end of the composite roller.

[0014] The utility model discloses beneficial effect is: in the utility model, the temperature of the cooling water of backflow is higher and directly mixes into the circulating pump with the water of lower temperature that the cooling water pool exports directly, can directly adjust the temperature of circulating pump output, temperature detection device feedback temperature change value gives controller, and the controller passes through the flow size of control temperature -controlled valve and electric valve and influences the opening and close of check valve, to reach the stable purpose of automatic regulation cooling water temperature, and further ensure that cooling roller works with relatively constant temperature, avoid the whole composite department and produce overload phenomenon because of cooling roller temperature too high or too low. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the structure schematic diagram of cooling water circulation system in the utility model,

[0016] Figure 2 It is the pipeline schematic diagram of cooling water circulation system in the utility model,

[0017] Figure 3 It is the structure schematic diagram of the utility model.

[0018] In the drawing: cooling roller 1, circulating pump 2, inlet pipe 3, backflow pipe 4, outlet pipe 5, temperature detection device 6, discharge pipe 7, temperature -controlled valve 8, electric valve 9, check valve 10, pressure switch 11, first valve 12, second valve 13, rack 14, stripping roller 15, composite roller 16, die head 17, back pressure roller 18. DETAILED DESCRIPTION

[0019] The technical scheme of the utility model will be further specifically explained below by combining with the drawings.

[0020] Combining Figures 1-3 As shown in the figure, a kind of laminating machine composite cooling device, including cooling roller 1 and the cooling water circulation system of independent connection cooling roller 1;

[0021] The cooling water circulation system includes cooling water pool, circulating pump 2, inlet pipe 3 and backflow pipe 4, one end of the circulating pump 2 is connected with cooling roller 1 by outlet pipe 5, temperature detection device 6 is arranged on the outlet pipe 5, and the inlet of cooling water pool and circulating pump 2 is connected with the two ends of inlet pipe 3 respectively;

[0022] The two ends of the return pipe 4 are connected with the other end of the cooling roller 1 and the middle part of the water inlet pipe 3 respectively, and a discharge pipe 7 is further connected with the return pipe 4, which is arranged upstream of the connection part of the return pipe 4 and the water inlet pipe 3, and the discharge pipe 7 is provided with a temperature control valve 8 and an electric valve 9, and the connection part of the return pipe 4 and the water inlet pipe 3 is further provided with a check valve 10.

[0023] Further, a controller is arranged, the temperature detection device 6 is connected with the controller and feeds back the temperature change value to the controller, the controller controls the flow size of the temperature control valve 8 and the electric valve 9 to affect the opening and closing of the check valve 10, so as to automatically adjust the temperature of the cooling water.

[0024] In the above structure, the cooling water with high temperature flowing back is directly connected with the water inlet pipe 3 and directly mixed with the water with low temperature output from the cooling water pool to enter the circulating pump 2, so as to directly adjust the temperature of the output of the circulating pump 2; the temperature detection device 6 feeds back the temperature change value to the controller, the controller controls the flow size of the temperature control valve 8 and the electric valve 9 to affect the opening and closing of the check valve 10, so as to automatically adjust the temperature of the cooling water, and further ensure that the cooling roller 1 works at a relatively constant temperature, and avoid the overload phenomenon of the whole composite part due to the too high or too low temperature of the cooling roller 1.

[0025] In another embodiment, as shown in Figure 1 the outlet of the check valve 10 is further provided with a pressure switch 11, which is connected with the controller and is used for monitoring the pressure value at the outlet of the check valve 10 and feeding back to the controller.

[0026] In another embodiment, the outlet end of the discharge pipe 7 is connected with the cooling water pool.

[0027] In another embodiment, as shown in Figure 1 the outlet end of the discharge pipe 7 is connected with the cooling water pool.

[0028] Specifically, the first valve 12 and the second valve 13 are both hand-operated valves.

[0029] In another embodiment, as shown in Figure 3 the cooling roller 1 is arranged on a rack 14, a stripping roller 15 is arranged on the rack 14 at the rear end of the cooling roller 1, a composite roller 16 is arranged on the rack 14 at the front end of the cooling roller 1, a die head 17 is further arranged on the rack 14 above the cooling roller 1 and the composite roller 16, the die head 17 extrudes the plastic particles melted into liquid, and a back pressure roller 18 is further arranged on the rack 14 at the front end of the composite roller 16.

Claims

1. A composite cooling device for a coating machine, characterized in that, Includes a cooling roller (1) and a cooling water circulation system independently connected to the cooling roller (1); The cooling water circulation system includes a cooling water pool, a circulation pump (2), an inlet pipe (3), and a return pipe (4). The circulation pump (2) is connected to one end of the cooling roller (1) through an outlet pipe (5). A temperature detection device (6) is provided on the outlet pipe (5). The two ends of the inlet pipe (3) are connected to the cooling water pool and the inlet of the circulation pump (2), respectively. The two ends of the return pipe (4) are respectively connected to the other end of the cooling roller (1) and the middle of the water inlet pipe (3). A discharge pipe (7) is also connected to the return pipe (4). The discharge pipe (7) is located upstream of the connection between the return pipe (4) and the water inlet pipe (3). A temperature control valve (8) and an electric valve (9) are provided on the discharge pipe (7). A check valve (10) is also provided at the connection between the return pipe (4) and the water inlet pipe (3). It also includes a controller, the temperature detection device (6) is connected to the controller, and the controller affects the opening and closing of the check valve (10) by controlling the flow rate of the temperature control valve (8) and the electric valve (9).

2. The composite cooling device for a coating machine as described in claim 1, characterized in that, The check valve (10) is also provided with a pressure switch (11) at its outlet, and the pressure switch (11) is connected to the controller.

3. The composite cooling device for a coating machine as described in claim 2, characterized in that, The outlet end of the discharge pipe (7) is connected to a cooling water pool.

4. The composite cooling device for a coating machine as described in claim 3, characterized in that, The outlet pipe (5) is also equipped with a first valve (12), and the inlet pipe (3) is also equipped with a second valve (13).

5. The composite cooling device for a coating machine as described in claim 4, characterized in that, Both the first valve (12) and the second valve (13) are manual valves.

6. The composite cooling device for a coating machine as described in claim 5, characterized in that, The cooling roller (1) is mounted on the frame (14). A stripping roller (15) is mounted on the frame (14) at the rear end of the cooling roller (1). A composite roller (16) is mounted on the frame (14) at the front end of the cooling roller (1). A die head (17) is also mounted above the frame (14) between the cooling roller (1) and the composite roller (16). A back pressure roller (18) is also mounted on the frame (14) at the front end of the composite roller (16).

Images