Vacuum plastic uptake system and method for refrigerator liner

Abstract

The invention provides a refrigerator inner container vacuum blister system and method, and belongs to the technical field of refrigerator inner container molds, the refrigerator inner container vacuum blister system is provided with a set of vacuum degree detection system, and the detection system and an inner container equipment control system are connected and can act mutually. A plurality of vacuum degree probes are arranged on the surface of the mold and used for detecting the vacuum degree of the mold in real time and transmitting the vacuum degree numerical value to a vacuum detection system, when the vacuum degree reaches a set value, vacuumizing equipment is closed, and the next step of work is carried out in the production process. When the vacuumizing equipment works and the vacuum degree exceeds the set time and does not reach the set value, the system gives an alarm. The alarm modes comprise subsystem alarm and total system alarm, and the subsystem, namely the detection system, gives an alarm, such as light and / or sound alarm; and the total system alarm is that the detection system transmits an alarm signal to the total system alarm system, so that the total system alarm system can give an alarm.

Description

Technical Field

[0001] The present application relates to the technical field of refrigerator liner molds, and in particular to a refrigerator liner vacuum forming system and method. Background Art

[0002] During the production process of refrigerator liner, no matter it is vacuuming above the liner or vacuuming below the liner, it is always in the open state after it is turned on, and it is not turned off until a certain period of time has passed. That is to say, the use of vacuuming is set in the open and closed state according to production experience. In order to ensure normal production, the opening and closing process must release enough margin to ensure sufficient vacuum during the production of the liner. Therefore, it means that the vacuum state is far greater than the actual production demand, so the energy consumption of the vacuum equipment is more than actually needed.

[0003] In summary, in order to solve the energy consumption problem of vacuum equipment, the present application provides a more reasonable working system. Summary of the invention

[0004] The embodiment of the present application provides a refrigerator liner vacuum forming system and method. The refrigerator liner vacuum forming system monitors the vacuum degree of the liner mold in real time by adding a vacuum probe. When the vacuum degree is reached, the vacuum pumping equipment is turned off in time to carry out the next process flow. This reduces the energy consumption of the liner molding and increases the service life of the vacuum pumping equipment; it also improves the overall cycle efficiency of the liner production. The present application solves the problem of large energy consumption of existing vacuum pumping equipment.

[0005] In a first aspect, an embodiment of the present application provides a refrigerator liner vacuum forming system, comprising:

[0006] An upper body and a lower body are matched, wherein the upper body and the lower body clamp the inner liner plate, the upper body and the inner liner plate form a first sealed cavity, and the lower body and the inner liner plate form a second sealed cavity;

[0007] a first vacuum pumping mechanism and a first vacuum degree probe disposed on the upper body, wherein the first vacuum pumping mechanism is used to extract air from the first sealed cavity, and the first vacuum degree probe is used to monitor the vacuum degree in the first sealed cavity and transmit the vacuum degree to the host;

[0008] An inner liner mold, a lifting mechanism, a second vacuum pumping mechanism, a second vacuum degree probe and a heating mechanism are arranged on the lower body, the inner liner mold is located in the second sealed cavity, the telescopic end of the lifting mechanism is connected to the inner liner mold and extends toward the upper body, the second vacuum pumping mechanism is used to extract air in the second sealed cavity, the second vacuum degree probe is used to monitor the vacuum degree of the second sealed cavity and transmit it to the host, and the heating mechanism is used to heat the inner liner plate material.

[0009] In a feasible implementation, the first vacuum pumping mechanism includes a first air pump and a first tube body;

[0010] The first air pump is fixed on the upper body, the air suction end of the first air pump is connected to one end of the first tube body, and the other end of the first tube body passes through the upper body and extends into the first sealed cavity.

[0011] In a feasible implementation, the first vacuum pumping mechanism includes a first air pump and a first tube body;

[0012] The first air pump is fixed on the upper body, the air suction end of the first air pump is connected to one end of the first tube body, and the other end of the first tube body passes through the upper body and extends into the first sealed cavity.

[0013] In a feasible implementation, a slot body is provided in the middle of the lower body, and the liner mold and the lifting mechanism are both arranged in the slot body;

[0014] The lifting mechanism is fixedly arranged on the inner wall of the bottom end of the trough body, and the telescopic end of the lifting mechanism is fixedly connected to the side of the liner mold facing away from the upper body.

[0015] In a feasible implementation, the second vacuum pumping mechanism includes a second air pump, a telescopic tube, a second tube body and a third tube body;

[0016] The second air pump is fixedly arranged in the tank body, the exhaust end of the second air pump is connected to one end of the third tube body, and the other end of the third tube body passes through the lower body;

[0017] The suction end of the second air pump is connected to one end of the telescopic tube, the other end of the telescopic tube is connected to one end of the second tube body, the other end of the second tube body extends toward the lower body side and passes through the groove position of the liner mold.

[0018] In a feasible implementation, the second vacuum probe is disposed on the liner mold, and a detection end of the second vacuum probe extends into the second tube body.

[0019] In a feasible implementation, the heating mechanism is provided in plurality, the plurality of heating mechanisms are all arranged on a side of the liner mold facing the upper body, and the plurality of heating mechanisms are evenly distributed.

[0020] In a second aspect, the present application further provides a vacuum forming method, which is applied to the above-mentioned refrigerator liner vacuum forming system, and the vacuum forming method comprises:

[0021] The upper body and the lower body clamp the inner tank plate;

[0022] The heating mechanism is used to heat the inner tank plate to a predetermined temperature;

[0023] The first vacuuming mechanism vacuums the first sealed cavity;

[0024] The first vacuum probe detects a first actual vacuum degree of the first sealed cavity and transmits the result to the host computer;

[0025] When the first actual vacuum degree reaches the first preset vacuum degree within the first preset time, the lifting mechanism drives the liner mold to rise;

[0026] The second vacuuming mechanism vacuums the second sealed cavity;

[0027] The first vacuum probe detects a second actual vacuum degree of the second sealed cavity and transmits the result to the host computer;

[0028] When the actual vacuum degree of the second pumping reaches the preset vacuum degree of the second pumping within the preset time of the second pumping, the inner container is cooled and formed.

[0029] In a feasible implementation, the vacuum forming method further includes:

[0030] When the first actual vacuum degree does not reach the first preset vacuum degree within the first preset time, the alarm device alarms.

[0031] In a feasible implementation, the vacuum forming method further includes:

[0032] When the second actual vacuum degree does not reach the second preset vacuum degree within the second pumping preset time, the alarm device alarms

[0033] The embodiment of the present application provides a refrigerator liner vacuum blister system and method, the refrigerator liner vacuum blister system is equipped with a vacuum degree detection system, the detection system is connected to the liner equipment control system, and can act mutually. A number of vacuum probes are arranged on the mold surface to detect the vacuum degree of the mold in real time, and the vacuum degree value is transmitted to the vacuum detection system. When the vacuum degree reaches the set value, the vacuum pumping equipment is turned off, and the production process proceeds to the next step. When the vacuum pumping equipment is working, if the vacuum degree exceeds the set time and does not reach the set value, the system will alarm. The alarm mode is divided into subsystem alarm and total system alarm. The subsystem is the detection system that issues an alarm, such as light and / or sound alarm; the total system alarm is that the detection system transmits the alarm signal to the total system alarm system, which is conducive to the total system alarm system to issue an alarm. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a structural schematic diagram of the refrigerator liner vacuum blister system provided by the present application;

[0035] Figure 2 It is a schematic diagram of the working state of the vacuum forming system of the refrigerator liner;

[0036] Figure 3 It is a flow chart of the vacuum forming method provided by the present application.

[0037] Description of reference numerals:

[0038] 1-upper body; 2-lower body; 3-first vacuum pumping mechanism; 4-first vacuum probe; 5-liner mold; 6-lifting mechanism; 7-second vacuum pumping mechanism; 8-second vacuum probe; 9-heating mechanism;

[0039] 21 - tank body; 31 - first air pump; 32 - first tube body; 71 - second air pump; 72 - telescopic tube; 73 - second tube body; 74 - third tube body. DETAILED DESCRIPTION

[0040] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work should fall within the scope of protection of the present application.

[0041] The production process of refrigerator liner is as follows: first, the liner plate is fixed in a predetermined position, and the liner mold is under the plate; then the plate is heated, and when it is heated to the set temperature (the temperature can be set and displayed on the display); the vacuum is turned on above the plate, and the liner swells from a flat state into a "yurt" shape under the vacuum state; after 3-5 seconds, the liner mold rises from the bottom into place, and after the mold rises into place, the vacuum on the top is turned off; at the same time, the vacuum state is turned on under the liner mold; at this time, the "yurt"-shaped liner begins to fall under the vacuum state below, and then is tightly adsorbed on the liner mold; after 3-8 seconds, the temperature starts to cool down and form, and before the forming is completed and the liner and mold are ready to be shipped out, the vacuum at the bottom is turned off.

[0042] In the above-mentioned refrigerator liner production process, it can be seen that both the vacuum pumping above the liner and the vacuum pumping below the liner are in the open state after being turned on, and are only turned off after a certain period of time. That is to say, the use of vacuum pumping is set according to the open and closed states of production experience. In order to ensure normal production, the opening and closing process must release enough margin to ensure sufficient vacuum during the production of the liner. Therefore, it means that the vacuum state is far greater than the actual production demand, so the energy consumption of the vacuum equipment is more than actually needed.

[0043] In summary, in response to the energy consumption problem of vacuum equipment, this application provides a more reasonable working system, that is, by adding a vacuum probe to monitor the vacuum degree of the liner mold in real time, and when the vacuum degree is reached, the vacuum equipment is turned off in time to carry out the next process flow. This reduces the energy consumption of liner molding and increases the service life of the vacuum equipment; it also improves the overall cycle efficiency of liner production.

[0044] The specific structure of the refrigerator liner vacuum forming system and method provided by the present application is described in detail below in conjunction with the accompanying drawings.

[0045] Reference Figure 1 and Figure 2 As shown, the embodiment of the present application provides a refrigerator liner vacuum blister system, comprising:

[0046] The upper body 1 and the lower body 2 are matched, and the upper body 1 is arranged on the upper part of the lower body 2, and the two can be buckled or hinged, such as Figure 1 and Figure 2 As shown, A in the figure is an inner liner plate, the upper body 1 and the lower body 2 clamp the inner liner plate, the upper body 1 and the inner liner plate form a first sealed cavity, and the lower body 2 and the inner liner plate form a second sealed cavity;

[0047] A first vacuum pumping mechanism 3 and a first vacuum degree probe 4 are arranged on the upper body 1, wherein the first vacuum pumping mechanism 3 is used to extract the air in the first sealed cavity, so that the first sealed cavity is in a vacuum state, and the inner tank plate material bulges upward into a "yurt" shape; the first vacuum degree probe 4 is used to monitor the vacuum degree in the first sealed cavity, obtain the actual vacuum degree in the first sealed cavity, and transmit it to the host;

[0048] An inner liner mold 5, a lifting mechanism 6, a second vacuum pumping mechanism 7, a second vacuum degree probe 8 and a heating mechanism 9 are arranged on the lower body 2. The shape of the inner liner mold 5 is not specifically limited. The inner liner mold 5 is located in the second sealed cavity. The lifting mechanism 6 can be a hydraulic telescopic rod, an electric push rod, etc. The telescopic end of the lifting mechanism 6 is connected to the inner liner mold 5 and extends toward the upper body 1. The second vacuum pumping mechanism 7 is used to extract the air in the second sealed cavity to make the second sealed cavity in a vacuum state. The second vacuum degree probe 8 is used to monitor the vacuum degree of the second sealed cavity, obtain the actual vacuum degree in the second sealed cavity, and transmit it to the host. The heating mechanism 9 can be an electric heating mechanism, specifically an electric heating plate. The heating mechanism 9 is used to heat the inner liner plate material to facilitate the deformation of the inner liner plate material.

[0049] Reference Figure 2As shown, in some embodiments, the first vacuum pumping mechanism 3 includes a first air pump 31 and a first tube 32;

[0050] The first air pump 31 is a conventional air pump, which is fixed on the upper body 1 , and the air suction end of the first air pump 31 is connected to the upper end of the first tube 32 , and the lower end of the first tube 32 passes through the upper body 1 and extends into the first sealed cavity.

[0051] In some embodiments, the first vacuum probe 4 is fixedly mounted on the inner wall of the upper body 1 , and a detection end of the first vacuum probe 4 extends into the first tube 32 .

[0052] Reference Figure 2 As shown, in some embodiments, a trough body 21 is provided in the middle of the lower body 2, and the trough body 21 may be a square trough body, and the liner mold 5 and the lifting mechanism 6 are both arranged in the trough body 21;

[0053] The lifting mechanism 6 is fixedly mounted on the inner wall of the bottom end of the trough body 21 , and the telescopic end of the lifting mechanism 6 is fixedly connected to the side of the liner mold 5 facing away from the upper body 1 .

[0054] In some embodiments, the second vacuum pumping mechanism 7 includes a second air pump 71, a telescopic tube 72, a second tube body 73 and a third tube body 74;

[0055] The second air pump 71 is a conventional air pump, and the second air pump 71 is fixed in the tank 21, and the exhaust end of the second air pump 71 is connected to the upper end of the third tube 74, and the lower end of the third tube 74 passes through the lower body 2;

[0056] The suction end of the second air pump 71 is connected to the lower end of the telescopic tube 72, and the upper end of the telescopic tube 72 is connected to the lower end of the second tube body 73. The upper end of the second tube body 73 extends toward the side of the lower body 2 and passes through the groove position of the liner mold 5.

[0057] If the inner liner mold 5 does not have a groove position, the second tube body 73 can also be set on the side of the inner liner mold 5 and does not penetrate the inner liner mold 5.

[0058] In some embodiments, the second vacuum probe 8 is disposed on the inner liner mold 5 , and a detection end of the second vacuum probe 8 extends into the second tube body 73 .

[0059] Reference Figure 2 As shown, in some embodiments, the heating mechanism 9 is provided in plurality, and the plurality of heating mechanisms 9 are all arranged on the side of the liner mold 5 facing the upper body 1, and the plurality of heating mechanisms 9 are evenly distributed.

[0060] Reference Figure 3 As shown, the present application provides a vacuum forming method, which is applied to the above-mentioned refrigerator liner vacuum forming system, and the vacuum forming method comprises:

[0061] S1: The upper body 1 and the lower body 2 clamp the inner liner plate.

[0062] The liner plate is fixed at a predetermined position, the liner mold 5 is located below the liner plate, and the upper body 1 descends to clamp the liner plate with the lower body 2 to form a first sealed cavity and a second sealed cavity;

[0063] The host controls the heating mechanism 9 to start, and the heating mechanism 9 heats the inner liner plate until the temperature sensor detects that the temperature of the inner liner plate reaches a predetermined temperature.

[0064] S2: The first vacuum pumping mechanism 3 evacuates the first sealed cavity; the first vacuum probe 4 detects the first actual vacuum degree of the first sealed cavity and transmits it to the host.

[0065] The host controls the first vacuum pumping mechanism 3 to open, and the first vacuum pumping mechanism 3 extracts the air in the first sealed cavity, so that the first sealed cavity reaches a vacuum state, and the inner liner sheet swells into a "yurt" shape; at the same time, the first vacuum probe 4 detects the first actual vacuum degree of the first sealed cavity and transmits it to the host.

[0066] S3: When the first actual vacuum degree reaches the first preset vacuum degree within the first preset time, the lifting mechanism 6 drives the liner mold 5 to rise;

[0067] The host starts counting while controlling the first vacuum pumping mechanism 3 to start. In normal state, within the first preset time, the first actual vacuum degree of the first sealed chamber should reach the preset first preset vacuum degree. If within the first preset time, the first actual vacuum degree does not reach the first preset vacuum degree, the host starts an alarm. The alarm is divided into a subsystem alarm and a total system alarm. At this time, the subsystem alarm is turned on. The subsystem alarm system can be composed of a buzzer, an indicator light, etc. When the host controls the subsystem alarm, the first vacuum pumping mechanism 3 continues to work and restarts the timing. After the delay time is reached, if the first actual vacuum degree has not reached the first preset vacuum degree, the host controls the total system to alarm to remind the staff to perform maintenance; if before the delay time is reached, the first actual vacuum degree reaches the first preset vacuum degree, the lifting mechanism 6 drives the inner liner mold 5 to rise, and the inner liner mold 5 extends into the "yurt"-shaped inner liner sheet.

[0068] S4: The second vacuum pumping mechanism 7 evacuates the second sealed cavity; the first vacuum probe 4 detects the second actual vacuum degree of the second sealed cavity and transmits it to the host.

[0069] The host controls the first vacuum pumping mechanism 3 to close and controls the second vacuum pumping mechanism 7 to open. The second vacuum pumping mechanism 7 extracts the air in the second sealed cavity to make the second sealed cavity reach a vacuum state, so that the liner sheet falls and is then tightly adsorbed on the liner mold 5.

[0070] S5: When the actual vacuum degree of the second pumping reaches the second preset vacuum degree within the second pumping preset time, the inner container is cooled and formed.

[0071] The host controls the second vacuum pumping mechanism 7 to start counting at the same time when it is turned on. In a normal state, the second actual vacuum degree of the second sealing chamber should reach the preset second preset vacuum degree within the second preset time. If the second actual vacuum degree does not reach the second preset vacuum degree within the second preset time, the host control subsystem will alarm; while the host control subsystem alarms, the second vacuum pumping mechanism 7 continues to work and restarts the timing. After the delay time is reached, if the second actual vacuum degree has not reached the second preset vacuum degree, the host control main system will alarm to remind the staff to repair; if the second actual vacuum degree reaches the second preset vacuum degree before the delay time is reached, the second vacuum pumping mechanism 7 of the host will be closed and the cooling and molding will start at the same time.

[0072] It is easy to understand that those skilled in the art can combine, split, reorganize, etc. the embodiments of the present application to obtain other embodiments based on the several embodiments provided in the present application, and these embodiments do not exceed the protection scope of the present application.

[0073] The above specific implementation methods further explain in detail the purpose, technical solutions and beneficial effects of the embodiments of the present application. It should be understood that the above are only specific implementation methods of the embodiments of the present application and are not used to limit the protection scope of the embodiments of the present application. Any modifications, equivalent substitutions, improvements, etc. made on the basis of the technical solutions of the embodiments of the present application should be included in the protection scope of the embodiments of the present application.

Claims

1. A refrigerator liner vacuum blister system, characterized in that: include; An upper body (1) and a lower body (2) are matched with each other, wherein the upper body (1) and the lower body (2) clamp an inner liner plate, the upper body (1) and the inner liner plate form a first sealed cavity, and the lower body (2) and the inner liner plate form a second sealed cavity; a first vacuum extraction mechanism (3) and a first vacuum degree probe (4) disposed on the upper body (1), wherein the first vacuum extraction mechanism (3) is used to extract air from the first sealed cavity, and the first vacuum degree probe (4) is used to monitor the vacuum degree in the first sealed cavity and transmit the vacuum degree to the host; An inner liner mold (5), a lifting mechanism (6), a second vacuum pumping mechanism (7), a second vacuum degree probe (8) and a heating mechanism (9) are arranged on the lower body (2); the inner liner mold (5) is located in the second sealed cavity; the telescopic end of the lifting mechanism (6) is connected to the inner liner mold (5) and extends toward the upper body (1); the second vacuum pumping mechanism (7) is used to extract air in the second sealed cavity; the second vacuum degree probe (8) is used to monitor the vacuum degree of the second sealed cavity and transmit it to the host; the heating mechanism (9) is used to heat the inner liner plate material.

2. The refrigerator liner vacuum blister system according to claim 1, characterized in that: The first vacuum pumping mechanism (3) comprises a first air pump (31) and a first tube (32); The first air pump (31) is fixedly mounted on the upper body (1); an air suction end of the first air pump (31) is connected to one end of the first tube (32); and the other end of the first tube (32) passes through the upper body (1) and extends into the first sealed cavity.

3. The refrigerator liner vacuum blister system according to claim 2, characterized in that: The first vacuum probe (4) is fixedly mounted on the inner wall of the upper machine body (1), and the detection end of the first vacuum probe (4) extends into the first tube body (32).

4. The refrigerator liner vacuum blister system according to claim 1, characterized in that: A trough (21) is provided in the middle of the lower body (2), and the liner mold (5) and the lifting mechanism (6) are both arranged in the trough (21); The lifting mechanism (6) is fixedly arranged on the inner wall of the bottom end of the trough body (21), and the telescopic end of the lifting mechanism (6) is fixedly connected to the side of the liner mold (5) facing away from the upper body (1).

5. The refrigerator liner vacuum forming system according to claim 1, characterized in that: The second vacuum pumping mechanism (7) comprises a second air pump (71), a telescopic tube (72), a second tube body (73) and a third tube body (74); The second air pump (71) is fixedly arranged in the tank body (21), the exhaust end of the second air pump (71) is connected to one end of the third tube body (74), and the other end of the third tube body (74) passes through the lower body (2); The suction end of the second air pump (71) is connected to one end of the telescopic tube (72), the other end of the telescopic tube (72) is connected to one end of the second tube body (73), and the other end of the second tube body (73) extends toward the side of the lower body (2) and passes through the groove position of the inner liner mold (5).

6. The refrigerator liner vacuum forming system according to claim 5, characterized in that: The second vacuum probe (8) is arranged on the inner container mold (5), and the detection end of the second vacuum probe (8) extends into the second tube body (73).

7. The refrigerator liner vacuum forming system according to claim 1, characterized in that: A plurality of the heating mechanisms (9) are provided, and the plurality of the heating mechanisms (9) are all arranged on a side of the inner liner mold (5) facing the upper machine body (1), and the plurality of the heating mechanisms (9) are evenly distributed.

8. A vacuum blister method, characterized in that: The vacuum forming method is applied to the refrigerator liner vacuum forming system according to any one of claims 1 to 7, and the vacuum forming method comprises: The upper body and the lower body clamp the inner tank plate; The heating mechanism is used to heat the inner tank plate to a predetermined temperature; The first vacuuming mechanism vacuums the first sealed cavity; The first vacuum probe detects a first actual vacuum degree of the first sealed cavity and transmits the result to the host computer; When the first actual vacuum degree reaches the first preset vacuum degree within the first preset time, the lifting mechanism drives the liner mold to rise; The second vacuuming mechanism vacuums the second sealed cavity; The first vacuum probe detects a second actual vacuum degree of the second sealed cavity and transmits the result to the host computer; When the actual vacuum degree of the second pumping reaches the preset vacuum degree of the second pumping within the preset time of the second pumping, the inner container is cooled and formed.

9. The vacuum forming method according to claim 8, characterized in that: The vacuum forming method further comprises: When the first actual vacuum degree does not reach the first preset vacuum degree within the first preset time, the alarm device alarms.

10. The vacuum forming method according to claim 8, characterized in that: The vacuum forming method further comprises: When the second actual vacuum degree does not reach the second preset vacuum degree within the second pumping preset time, the alarm device alarms.

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