Cooling device for PVC packaging film processing

Abstract

The utility model relates to the technical field of PVC decorative film production and processing, and discloses a cooling device for PVC packaging film processing, the cooling device comprises a box body and a film body, the side surface of the box body is fixedly connected with a water removal shell, the side surface of the box body is provided with an inlet, and the side surface of the water removal shell is provided with an outlet. According to the cooling device for PVC packaging film processing, by arranging a rotating motor and a tension sensor, when the tension sensor detects that the tension of a film material changes, the tension sensor can transmit a signal to an external controller, then the external controller starts the rotating motor to operate, a threaded rod is made to rotate, and then under limiting of a plurality of telescopic rods, the rotating motor is driven to rotate; the threaded cylinder can be driven to move on the surface of the threaded rod, so that the height of the adjusting wheel can be adjusted, the height of the adjusting wheel is adjusted through the threaded rod, the tension of a film body can be balanced in real time, and breakage or wrinkling is prevented.

Description

Technical Field

[0001] This application relates to the field of PVC decorative film production and processing technology, specifically a cooling device for PVC packaging film processing. Background Technology

[0002] Polyvinyl chloride, abbreviated as PVC, is a polymer formed by the polymerization of vinyl chloride monomers under the action of initiators such as peroxides and azo compounds, or under the action of light and heat, according to the free radical polymerization mechanism. Cooling devices for PVC decorative film processing are used on the production line of PVC decorative film to cool the freshly produced PVC film.

[0003] An existing patent (publication number: CN212266425U) discloses a cooling device for PVC decorative film processing, belonging to the field of PVC decorative film production and processing technology. It includes a workbench, a primary cooling component, a secondary cooling component, a winding component, and a control switch. The primary cooling component mainly includes two positioning plates symmetrically fixed on both sides of the workbench. Two heat-conducting metal cooling rollers are arranged between the positioning plates from top to bottom. The two ends of each cooling roller are rotatably connected to the positioning plates via rotating bearings. A gap is left between the two cooling rollers for the film to pass through. The secondary cooling component mainly includes a cooling box. Cooling air boxes are arranged on both sides of the cooling box. A cooling fan is installed inside the cooling air box to deliver cold air into the cooling box. This overcomes the shortcomings of the prior art, performs two-stage cooling, improves the cooling efficiency of the film surface, achieves better cooling effect, reduces the footprint of the cooling device, and has good economic benefits.

[0004] While the device in the aforementioned comparative document solves the problem of natural cooling in air, which has low cooling efficiency and large space requirements, the PVC film in this device is prone to linear shrinkage or expansion deformation within ±5mm due to temperature difference during the cooling process. Traditional fixed guide rollers will cause local stress concentration in the film material. The lateral displacement caused by tension fluctuation when the film material passes through the guide rollers can easily form irreversible wrinkles. In order to solve the above problems, a cooling device for PVC packaging film processing is proposed. Utility Model Content

[0005] To address the shortcomings of existing technologies, this application provides a cooling device for PVC packaging film processing, which has advantages such as automatic adjustment structure. It solves the problems of local stress concentration in the film material caused by traditional fixed guide rollers, and irreversible wrinkles caused by lateral displacement of the film material due to tension fluctuations when passing through the guide rollers.

[0006] To achieve the above objectives, this application provides the following technical solution: a cooling device for processing PVC packaging film, comprising a box and a film body, wherein a dewatering shell is fixedly connected to the side of the box, an inlet is provided on the side of the box, and an outlet is provided on the side of the dewatering shell;

[0007] Multiple fixed plates are fixedly connected to the top of the inner chamber of the housing. An upper limit wheel is movably connected between two of the fixed plates via a pin. A lower limit wheel is movably connected inside the housing via a pin. A tension sensor is fixedly installed inside the housing, located between the two lower limit wheels. A fixed frame is fixedly connected to the top of the inner chamber of the housing. Multiple telescopic rods are fixedly connected to the top of the inner frame. A U-shaped plate is fixedly connected to the bottom of each telescopic rod. An adjusting wheel is movably connected inside the U-shaped plate via a pin. A rotary motor is fixedly connected to the top of the fixed frame. The output end of the rotary motor rotates through the top of the fixed frame and is fixedly connected to a threaded rod. A threaded cylinder is threaded onto the surface of the threaded rod. The bottom end of the threaded cylinder is fixedly connected to the top of the U-shaped plate. The membrane is wound around the surfaces of the upper limit wheel, lower limit wheel, adjusting wheel, and tension sensor.

[0008] The above scheme, by setting up a rotary motor and a tension sensor, when the tension sensor detects a change in membrane tension, it transmits a signal to an external controller. The external controller then starts the rotary motor to rotate the threaded rod. Under the limit of multiple telescopic rods, the threaded cylinder can be moved on the surface of the threaded rod, thereby adjusting the height of the adjusting wheel. By adjusting the height of the adjusting wheel through the threaded rod, the membrane tension can be balanced in real time, preventing breakage or wrinkles.

[0009] Furthermore, a circulation pump and a cooling water tank are fixedly connected to the back of the housing, and the output end of the circulation pump is fixedly connected to the input end of the cooling water tank.

[0010] The above scheme uses a circulating pump to drive the coolant circulation, maintaining cooling efficiency, and a cooling water tank to store and cool the liquid medium.

[0011] Furthermore, the output end of the circulating pump is fixedly connected to an inlet pipe, the output end of which is located at the top of the inside of the housing, and the input end of the cooling water tank is fixedly connected to an outlet pipe, the input end of which is located at the bottom of the inside of the housing.

[0012] The above solution allows the coolant heated inside the tank to be pumped back into the cooling water tank by setting an outlet pipe, and the cooled liquid to be transported back to the top of the tank by setting an inlet pipe, forming a closed-loop cooling system.

[0013] Furthermore, a plurality of first electric push rods and second electric push rods are fixedly connected to the top of the interior of the water removal shell, and the plurality of second electric push rods are located between the plurality of first electric push rods. A connecting plate is fixedly connected to the bottom end of each of the first electric push rods and the bottom end of each of the second electric push rods. The two connecting plates are arranged vertically, and a sponge pad is fixedly connected to the side of each connecting plate.

[0014] With the above scheme, by setting up a first electric push rod and a second electric push rod, when there is enough water in the sponge pad, the first electric push rod retracts and the second electric push rod extends and retracts, which can bring the two connecting plates closer to each other. Then, by squeezing the two connecting plates against each other, the water in the two sponge pads can be discharged.

[0015] Furthermore, a diversion plate is fixedly connected to the bottom of the water removal shell. The diversion plate is located at the bottom of the connecting plate, and the membrane is located between two sponge pads and is set inside the outlet and inlet.

[0016] The above solution, by setting up a diversion plate, can divert the squeezed water to the bottom of the tank.

[0017] Furthermore, multiple blowers are fixedly connected to the top and bottom of the interior of the water removal shell, and a blower fan is installed inside the blower.

[0018] The above method, by setting up a blower, can generate forced airflow to accelerate the drying of the membrane surface.

[0019] Furthermore, the input end of the blower is threaded with a mounting ring, and a filter plate is provided inside the mounting ring.

[0020] The above solution, by setting up a filter plate, can filter the air entering the blower and prevent dust from contaminating the membrane.

[0021] Furthermore, the front of the box is provided with a door, the bottom of the box is fixedly connected with a support foot, and the bottom of the water removal shell is fixedly connected with a support rod.

[0022] The above solution, by setting up a door, provides an access point for inspection and maintenance inside the enclosure, facilitating cleaning, replacement of parts, or troubleshooting.

[0023] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0024] This cooling device for PVC packaging film processing uses a rotary motor and a tension sensor. When the tension sensor detects a change in film tension, it sends a signal to an external controller. The external controller then starts the rotary motor, causing the threaded rod to rotate. Under the limit of multiple telescopic rods, the threaded cylinder can move on the surface of the threaded rod, thereby adjusting the height of the adjusting wheel. By adjusting the height of the adjusting wheel through the threaded rod, the film tension can be balanced in real time, preventing breakage or wrinkles. Attached Figure Description

[0025] Figure 1 This is a frontal three-dimensional structural diagram of this application;

[0026] Figure 2This is a side-view perspective three-dimensional structural diagram of this application;

[0027] Figure 3 This is a schematic diagram of the discharge hole structure in this application;

[0028] Figure 4 This is a schematic diagram of the structure of the power motor in this application;

[0029] Figure 5 for Figure 4 Enlarged structural diagram at point A in the middle.

[0030] In the picture:

[0031] 1. Housing; 101. Inlet; 102. Outlet; 103. Fixing plate; 104. Upper limit wheel; 105. Lower limit wheel; 106. Fixing frame; 107. Telescopic rod; 108. U-shaped plate; 109. Adjusting wheel; 1010. Drainage plate; 1011. First electric push rod; 1012. Second electric push rod; 1013. Connecting plate; 1014. Sponge pad; 1015. Air blower; 1016. Air blower; 1017. Circulating pump; 1018. Cooling water tank; 1019. Liquid outlet pipe; 1020. Liquid inlet pipe; 1021. Door; 1022. Rotary motor; 1023. Tension sensor; 1024. Threaded rod; 1025. Threaded cylinder; 1026. Water removal shell; 1027. Support foot; 1028. Support rod;

[0032] 2. Membrane;

[0033] 3. Installation ring; 301. Filter plate. Detailed Implementation

[0034] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0035] Please see Figure 1 , Figure 3 and Figure 5 A cooling device for processing PVC packaging film in this embodiment includes a box body 1 and a film body 2. A water removal shell 1026 is fixedly connected to the side of the box body 1. An inlet 101 is opened on the side of the box body 1, and an outlet 102 is opened on the side of the water removal shell 1026.

[0036] Multiple fixed plates 103 are fixedly connected to the top of the interior of the housing 1. An upper limit wheel 104 is movably connected between two fixed plates 103 via a pin. A lower limit wheel 105 is movably connected inside the housing 1 via a pin. A tension sensor 1023 is fixedly connected inside the housing 1, positioned between the two lower limit wheels 105. A fixed frame 106 is fixedly connected to the top of the interior of the housing 1. Multiple telescopic rods 107 are fixedly connected to the top of the interior of the fixed frame 106. A U-shaped plate 108 is fixedly connected to the bottom of each telescopic rod 107. An adjusting wheel 109 is movably connected inside the U-shaped plate 108 via a pin. A rotary motor 1022 is fixedly connected to the top of the fixed frame 106. The output end of the rotary motor 1022 rotates through the top of the fixed frame 106 and is fixedly connected to a threaded rod 1024. The threaded rod 1024 has a threaded surface. A threaded cylinder 1025 is connected to the top of a U-shaped plate 108. The membrane 2 is wound around the upper limit wheel 104, lower limit wheel 105, adjusting wheel 109, and tension sensor 1023. By setting a rotary motor 1022 and tension sensor 1023, when tension sensor 1023 detects a change in membrane tension, it transmits a signal to an external controller. The external controller then starts the rotary motor 1022, causing the threaded rod 1024 to rotate. Under the limit of multiple telescopic rods 107, the threaded cylinder 1025 can move on the surface of the threaded rod 1024, thereby adjusting the height of the adjusting wheel 109. By adjusting the height of the adjusting wheel 109 through the threaded rod 1024, the tension of the membrane 2 can be balanced in real time, preventing breakage or wrinkles.

[0037] Please see Figure 2 A circulation pump 1017 and a cooling water tank 1018 are fixedly connected to the back of the housing 1. The output end of the circulation pump 1017 is fixedly connected to the input end of the cooling water tank 1018. The circulation pump 1017 can drive the coolant to circulate and maintain the cooling efficiency. The cooling water tank 1018 can store and cool the liquid medium. The output end of the circulation pump 1017 is fixedly connected to an inlet pipe 1020. The output end of the inlet pipe 1020 is located at the top inside the housing 1. The input end of the cooling water tank 1018 is fixedly connected to an outlet pipe 1019. The input end of the outlet pipe 1019 is located at the bottom inside the housing 1. The outlet pipe 1019 can be used to pump the heated coolant in the housing 1 back into the cooling water tank 1018. The inlet pipe 1020 can be used to transport the cooled liquid back to the top of the housing 1, forming a closed-loop cooling system.

[0038] Please see Figure 1 , Figure 3 and Figure 4The dewatering shell 1026 has multiple first electric push rods 1011 and second electric push rods 1012 fixedly connected to its top interior. The second electric push rods 1012 are positioned between the first electric push rods 1011. Connecting plates 1013 are fixedly connected to the bottom ends of both the first electric push rods 1011 and 1012, arranged vertically. Sponge pads 1014 are fixedly connected to the sides of each connecting plate 1013. By using the first electric push rods 1011 and 1012, when the sponge pads 1014 are sufficiently moist, the first electric push rods 1011 retract and the second electric push rods 1012 extend and retract, bringing the two connecting plates 1013 closer together. The mutual compression of the two connecting plates 1013 then drains the water from the sponge pads 1014. A drainage plate 1010 is fixedly connected to the bottom interior of the dewatering shell 1026, positioned at the bottom of the connecting plates 1013. The membrane 2 is located between two sponge pads 1014 and is positioned within the outlet 102 and inlet 101. A diversion plate 1010 guides the squeezed water to the bottom of the housing 1. Multiple blowers 1015 are fixedly connected to the top and bottom of the water-removing shell 1026. Each blower 1015 contains a blower fan 1016, which generates forced airflow to accelerate the drying of the membrane 2 surface. A mounting ring 3 is threaded onto the input end of the blower 1015, and a filter plate 301 is installed inside the mounting ring 3. The filter plate 301 filters the air entering the blower 1015, preventing dust contamination of the membrane 2. A door 1021 is located on the front of the housing 1, and support feet 1027 are fixedly connected to the bottom of the housing 1. A support rod 1028 is fixedly connected to the bottom of the water-removing shell 1026. The door 1021 provides an access point for inspection and maintenance inside the housing 1, facilitating cleaning, component replacement, or troubleshooting.

[0039] In this embodiment, by setting up a rotary motor 1022 and a tension sensor 1023, when the tension sensor 1023 detects a change in membrane tension, it transmits a signal to an external controller. The external controller then starts the rotary motor 1022, causing the threaded rod 1024 to rotate. Under the limiting position of multiple telescopic rods 107, the threaded cylinder 1025 can move on the surface of the threaded rod 1024, thereby adjusting the height of the adjusting wheel 109. The adjusting wheel 109 is adjusted via the threaded rod 1024. The height can balance the tension of the membrane 2 in real time to prevent breakage or wrinkles. By setting the first electric push rod 1011 and the second electric push rod 1012, when there is enough moisture in the sponge pad 1014, the first electric push rod 1011 retracts and the second electric push rod 1012 extends and retracts, which can bring the two connecting plates 1013 closer to each other. Then, by the two connecting plates 1013 squeezing each other, the moisture in the two sponge pads 1014 can be discharged. By setting the blower 1016, a forced airflow can be generated to accelerate the drying of the membrane 2 surface.

[0040] The working principle of the above embodiment is as follows: When in use, people fill the cooling water tank 1018 with cooling water. After filling, the circulation pump 1017 is started. Through the liquid inlet pipe 1020, the cooling water can be pumped into the tank 1. When the membrane 2 passes through the cooling water in the tank 1, it can be cooled. The cooled membrane enters the water removal shell 1026 under the guidance of the upper limit wheel 104. Then, under the action of the upper and lower sponge pads 1014, the water stains on the surface of the membrane 2 can be removed. The membrane 2 with water removed flows out from the outlet 102 and is then wound up by the winding structure.

[0041] When the membrane 2 passes through the dewatering shell 1026, the blowers 1016 at the top and bottom of the dewatering shell 1026 operate, which can generate forced airflow to accelerate the drying of the surface of the membrane 2. When there is enough moisture in the sponge pad 1014, the first electric push rod 1011 retracts and the second electric push rod 1012 extends and retracts, which can bring the two connecting plates 1013 closer to each other. Then, by squeezing the two connecting plates 1013 against each other, the moisture in the two sponge pads 1014 can be discharged.

[0042] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0043] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cooling device for PVC packaging film processing, comprising a box body (1) and a film body (2), characterized in that: A water removal shell (1026) is fixedly connected to the side of the box (1), an inlet (101) is opened on the side of the box (1), and an outlet (102) is opened on the side of the water removal shell (1026). Multiple fixing plates (103) are fixedly connected to the top of the inside of the box (1). An upper limit wheel (104) is movably connected between two of the fixing plates (103) via a pin. A lower limit wheel (105) is movably connected to the inside of the box (1) via a pin. A tension sensor (1023) is fixedly connected to the inside of the box (1) and is located between the two lower limit wheels (105). A fixing frame (106) is fixedly connected to the top of the inside of the box (1). Multiple telescopic rods (107) are fixedly connected to the top of the inside of the fixing frame (106). A U-shaped plate is fixedly connected to the bottom of the telescopic rods (107). (108) An adjusting wheel (109) is movably connected inside the U-shaped plate (108) via a pin shaft. A rotary motor (1022) is fixedly connected to the top of the fixed frame (106). The output end of the rotary motor (1022) rotates through the top of the fixed frame (106) and is fixedly connected to a threaded rod (1024). A threaded cylinder (1025) is threadedly connected to the surface of the threaded rod (1024). The bottom end of the threaded cylinder (1025) is fixedly connected to the top of the U-shaped plate (108). The membrane (2) is wound around the surface of the upper limit wheel (104), the lower limit wheel (105), the adjusting wheel (109), and the tension sensor (1023).

2. The cooling device for PVC packaging film processing according to claim 1, characterized in that: A circulation pump (1017) and a cooling water tank (1018) are fixedly connected to the back of the housing (1), and the output end of the circulation pump (1017) is fixedly connected to the input end of the cooling water tank (1018).

3. The cooling device for PVC packaging film processing according to claim 2, characterized in that: The output end of the circulating pump (1017) is fixedly connected to the inlet pipe (1020), the output end of the inlet pipe (1020) is located at the top inside the box (1), and the input end of the cooling water tank (1018) is fixedly connected to the outlet pipe (1019), the input end of the outlet pipe (1019) is located at the bottom inside the box (1).

4. A cooling device for PVC packaging film processing according to claim 1, characterized in that: The top of the interior of the water removal shell (1026) is fixedly connected to a plurality of first electric push rods (1011) and second electric push rods (1012). The plurality of second electric push rods (1012) are located between the plurality of first electric push rods (1011). The bottom ends of the first electric push rods (1011) and the bottom ends of the second electric push rods (1012) are fixedly connected to a connecting plate (1013). The two connecting plates (1013) are arranged vertically. The sides of the connecting plates (1013) are fixedly connected to a sponge pad (1014).

5. A cooling device for PVC packaging film processing according to claim 4, characterized in that: The bottom of the water removal shell (1026) is fixedly connected to a flow guide plate (1010), which is located at the bottom of the connecting plate (1013). The membrane (2) is located between two sponge pads (1014) and is set inside the outlet (102) and inlet (101).

6. A cooling device for PVC packaging film processing according to claim 1, characterized in that: Multiple blowers (1015) are fixedly connected to the top and bottom of the water removal shell (1026), and a blower (1016) is installed inside the blower (1015).

7. A cooling device for PVC packaging film processing according to claim 6, characterized in that: The air blower (1015) has a threaded connection to an installation ring (3) at its input end, and a filter plate (301) is provided inside the installation ring (3).

8. A cooling device for PVC packaging film processing according to claim 1, characterized in that: The box (1) has a door (1021) on the front, a support foot (1027) is fixedly connected to the bottom of the box (1), and a support rod (1028) is fixedly connected to the bottom of the water removal shell (1026).

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