Cooling device for production of machine wrapping film

By introducing structures such as mixing chambers, water spray nozzles, and solenoid valves into the production of PE stretch film, uniform cooling of the cooling device and flexible control of the feeding speed are achieved, solving the problems of uneven cooling and uncontrollable feeding speed, and improving production efficiency.

CN223644058UActive Publication Date: 2025-12-09NANJING LVWO PACKING MATERIALS CO LTD
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Patent Information

Application Number
CN202423087979.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-14
Publication Date
2025-12-09
Estimated Expiration
2034-12-14

AI Technical Summary

Technical Problem

Existing PE stretch film production cooling devices are prone to uneven cooling and cannot effectively control the feeding speed, affecting cooling efficiency and ease of discharge.

Method used

A cooling device including a mixing chamber, a water spray nozzle, a threaded rod, and a solenoid valve was designed. The water pump and motor are started through the control panel to achieve uniform spraying of cool water and adjustment of the feed pipe. Combined with the rotation of the mixing roller and the threaded rod, uniform cooling of the raw materials and control of the feed speed are achieved.

Benefits of technology

It improves cooling efficiency and ease of discharge, ensuring uniformity of the cooling process and flexible adjustment of the discharge speed.

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Abstract

The utility model discloses a cooling device for machine wrapping film production in the technical field of PE wrapping film production, which comprises a body and a water tank, the water tank is fixedly connected to the right side wall of the body, a stirring bin is fixedly connected to the top of an inner cavity of the body, a first motor is fixedly connected to the top of the body, and a second motor is fixedly connected to the bottom of the body. A vertical rod is fixedly connected to the tail end of a power output shaft of the first motor, stirring rollers are fixedly connected to the outer side wall of the vertical rod and are sequentially arranged from top to bottom, a second motor is fixedly connected to the left side of the bottom of an inner cavity of the body, and a first threaded rod is fixedly connected to the tail end of a power output shaft of the second motor; the outer side wall of the first threaded rod is in threaded connection with a first threaded block, the right side wall of the first threaded block is fixedly connected with a mounting circular ring, and the cooling device for production of the wrapping film for the machine is reasonable in structural design, the cooling efficiency is effectively improved, and the discharging convenience is improved.
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Description

Technical Field

[0001] This utility model relates to the field of PE stretch film production technology, specifically a cooling device for the production of machine-grade stretch film. Background Technology

[0002] Stretch film, also known as stretch film or heat shrink film, was initially produced in China using PVC as the base material and DOA as a plasticizer that also served as a self-adhesive. However, due to environmental concerns, high cost (relatively higher density than PE, resulting in smaller packaging area per unit area), and poor tensile strength, it was gradually phased out when PE stretch film began to be produced in China in 1994-1995. PE stretch film initially used EVA as the self-adhesive material, but its cost was high and it had an odor. Later, PIB and VLDPE were developed as self-adhesive materials, with LLDPE as the main base material, including C4, C6, C8, and metallocene PE (MPE).

[0003] During the production of stretch film, the raw materials need to be cooled. Currently, most of the existing cooling devices for PE stretch film production are fixed, which can easily lead to uneven cooling and reduce cooling efficiency. Most existing cooling devices directly discharge the material through the feeding pipe, which makes it impossible to control the feeding speed and reduces the convenience of material discharge. Therefore, we propose a cooling device for the production of machine-grade stretch film. Utility Model Content

[0004] The purpose of this invention is to provide a cooling device for the production of machine-grade stretch film, in order to solve the problems mentioned in the background art, such as uneven cooling and inability to control the feeding speed.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A cooling device for the production of machine-grade stretch film, comprising a body and a water tank, wherein the water tank is fixedly connected to the right side wall of the body, a stirring chamber is fixedly connected to the top of the inner cavity of the body, a first motor is fixedly connected to the top of the body, a vertical rod is fixedly connected to the end of the power output shaft of the first motor, and stirring rollers are fixedly connected to the outer side wall of the vertical rod, arranged sequentially from top to bottom, a second motor is fixedly connected to the left side of the bottom of the inner cavity of the body, a first threaded rod is fixedly connected to the end of the power output shaft of the second motor, a first threaded block is screwed to the outer side wall of the first threaded rod, and an mounting ring is fixedly connected to the right side wall of the first threaded block. Sprinkler nozzles are fixedly connected to the inner wall of the water tank and arranged sequentially from left to right. A water pump is fixedly connected to the bottom of the inner cavity of the water tank, and a water supply pipe is fixedly connected to the top of the water pump. The water supply pipe passes through the inner cavity of the water tank and extends to the inner cavity of the mounting ring. A recovery pipe is fixedly connected to the bottom of the water pump. The recovery pipe passes through the inner cavity of the water tank and extends to the inner cavity of the main body. Mounting plates are fixedly connected to the left and right sides of the bottom of the main body. A second threaded rod is rotatably connected between the left and right side walls of the mounting plate. A second threaded block is screwed to the outer side wall of the second threaded rod. A sealing gasket is fixedly connected to the top of the second threaded block. A handle is fixedly connected to the end of the second threaded rod. The handle passes through the mounting plate.

[0006] As a further description of the above technical solution: a waterproof shell is fixedly connected to the bottom left side of the inner cavity of the body, and the first threaded rod passes through the waterproof shell and extends to the outside of the waterproof shell.

[0007] As a further description of the above technical solution: a feed inlet is opened on the top left side of the main body, and a discharge pipe is fixedly connected to the bottom of the mixing chamber. The discharge pipe passes through the inner cavity of the main body and extends to the outer side of the main body. A solenoid valve is fixedly connected to the inner wall of the discharge pipe.

[0008] As a further description of the above technical solution: support rods are fixedly connected to the four bottom corners of the main body.

[0009] As a further description of the above technical solution: the lower side of the front wall of the main body is rotatably connected to a cabinet door via a hinge.

[0010] As a further description of the above technical solution: a control panel is embedded in the upper side of the front sidewall of the main body, and the control panel is electrically connected to the first motor, the second motor, the solenoid valve and the water pump through wires.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This cooling device for machine-grade stretch film production can be activated by starting a water pump through the control panel, injecting cool water into the inner cavity of the mounting ring through a water pipe, and then spraying cool water onto the mixing chamber through the spray nozzles to cool it down. The second motor drives the first threaded rod to rotate, causing the first threaded block to move under force, which in turn moves the mounting ring to spray the mixing chamber evenly. Activating the water pump allows the cooled water that has absorbed heat to be recovered into the water tank through a recovery pipe, allowing for repeated cooling and effectively improving cooling efficiency.

[0013] 2. This cooling device for machine-grade stretch film production injects raw materials through the feed inlet, starts the first motor to drive the vertical rod and stirring roller to rotate, stirring the raw materials, and starts the solenoid valve to discharge the raw materials through the discharge pipe. The second threaded rod can be rotated by manually turning the handle, causing the second threaded block to move under force, thereby driving the sealing gasket to block the discharge pipe, adjusting the size of the discharge pipe outlet, thereby controlling the discharge speed and improving the convenience of discharge. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a cooling device for the production of machine-grade stretch film proposed in this utility model;

[0015] Figure 2 This is a cross-sectional structural schematic diagram of a cooling device for the production of machine-grade stretch film proposed in this utility model;

[0016] Figure 3 This is a top sectional view of the mounting ring structure of a cooling device for machine-grade stretch film production proposed in this utility model;

[0017] Figure 4 This is a schematic diagram of the circuit connection structure of a cooling device for the production of machine-grade stretch film proposed in this utility model.

[0018] In the diagram: 100, Main body; 110, Mixing chamber; 111, First motor; 112, Vertical rod; 113, Mixing roller; 120, Second motor; 121, First threaded rod; 122, First threaded block; 123, Waterproof shell; 130, Mounting ring; 131, Sprinkler head; 140, Feed inlet; 141, Discharge pipe; 142, Solenoid valve; 150, Support rod; 160, Cabinet door; 170, Control panel; 200, Water tank; 210, Water pump; 211, Water supply pipe; 212, Recovery pipe; 220, Mounting plate; 221, Second threaded rod; 222, Second threaded block; 223, Sealing gasket; 224, Handle. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] This utility model provides a cooling device for machine-grade stretch film production, which improves cooling efficiency and ease of material discharge. Please refer to [link / reference]. Figure 1-4 It includes the main body 100 and the water tank 200;

[0023] Please refer to it again. Figure 1-3A mixing chamber 110 is fixedly connected to the top of the inner cavity of the main body 100. The mixing chamber 110 is used to store raw materials. A first motor 111 is fixedly connected to the top of the main body 100. The first motor 111 is used to drive the vertical rod 112 to rotate. The model and specifications of the first motor 111 are well known to those skilled in the art and will not be described in detail here. The end of the power output shaft of the first motor 111 is fixedly connected to the vertical rod 112. A mixing roller 113 is fixedly connected to the outer wall of the vertical rod 112 and arranged sequentially from top to bottom. The mixing roller 113 is used to mix the raw materials. A second motor 12 is fixedly connected to the bottom left side of the inner cavity of the main body 100. 0. The second motor 120 is used to drive the first threaded rod 121 to rotate. The model and specifications of the second motor 120 are well known to those skilled in the art and will not be described in detail here. The power output shaft of the second motor 120 is fixedly connected to the first threaded rod 121. The outer wall of the first threaded rod 121 is screwed with a first threaded block 122. The first threaded block 122 is used to drive the mounting ring 130 to move. The right side wall of the first threaded block 122 is fixedly connected to the mounting ring 130. The inner side wall of the mounting ring 130 is fixedly connected to a water spray nozzle 131, which is arranged from left to right. The water spray nozzle 131 is used to spray cool water.

[0024] Please refer to it again. Figure 1-3 A water tank 200 is fixedly connected to the right side wall of the main body 100. A water pump 210 is fixedly connected to the bottom of the inner cavity of the water tank 200. The water pump 210 is used to transport cool water. The model and specifications of the water pump 210 are well known to those skilled in the art and will not be described in detail here. A water delivery pipe 211 is fixedly connected to the top of the water pump 210. The water delivery pipe 211 passes through the inner cavity of the water tank 200 and extends to the inner cavity of the mounting ring 130. A recovery pipe 212 is fixedly connected to the bottom of the water pump 210. The recovery pipe 212 passes through the inner cavity of the water tank 200 and extends to the inner cavity of the main body 100. The recovery pipe 212 is used to recover the cool water after absorbing heat. The bottom left and right sides of the main body 100 are fixed. A mounting plate 220 is connected to the second threaded rod 221. The second threaded rod 221 is rotatably connected between the left and right side walls of the mounting plate 220. A second threaded block 222 is screwed onto the outer side wall of the second threaded rod 221. The second threaded block 222 is used to move the sealing gasket 223. The sealing gasket 223 is fixedly connected to the top of the second threaded block 222. The sealing gasket 223 is used to block the feed pipe 141, thereby changing the outlet size of the feed pipe 141. A handle 224 is fixedly connected to the end of the second threaded rod 221. The handle 224 passes through the mounting plate 220 and is used to drive the second threaded rod 221 to rotate.

[0025] In summary, the water pump 210 can be started by activating the control panel 170, injecting cool water into the inner cavity of the mounting ring 130 through the water pipe 211, and the water spray nozzle 131 can be activated to spray cool water onto the mixing chamber 110 for cooling. The second motor 120 can be started to drive the first threaded rod 121 to rotate, causing the first threaded block 122 to move under force, thereby moving the mounting ring 130 to evenly spray water onto the mixing chamber 110. The water pump 210 can be started to return the cooled water that has absorbed heat to the water tank 200 through the recovery pipe 212, allowing for repeated cooling and thus effectively improving the cooling efficiency.

[0026] Please refer to it again. Figure 2 A waterproof shell 123 is fixedly connected to the bottom left side of the inner cavity of the main body 100. The first threaded rod 121 passes through the waterproof shell 123 and extends to the outside of the waterproof shell 123. The waterproof shell 123 is used to prevent cold water from contacting the second motor 120 and causing damage to the second motor 120.

[0027] Please refer to it again. Figure 2 The main body 100 has a feed inlet 140 on the top left side. The bottom of the mixing chamber 110 is fixedly connected to a discharge pipe 141. The discharge pipe 141 passes through the inner cavity of the main body 100 and extends to the outer side of the main body 100. A solenoid valve 142 is fixedly connected to the inner wall of the discharge pipe 141. The feed inlet 140 is used to input raw materials, and the discharge pipe 141 is used to discharge processed raw materials. The solenoid valve 142 is used to control the opening and closing of the discharge pipe 141. The model and specifications of the solenoid valve 142 are well known to those skilled in the art and will not be described in detail here.

[0028] Please refer to it again. Figure 1-2 Support rods 150 are fixedly connected to the four corners of the bottom of the main body 100. The support rods 150 are used to support the main body 100.

[0029] Please refer to it again. Figure 1 A cabinet door 160 is rotatably connected to the lower front wall of the main body 100 via a hinge. The cabinet door 160 is used to open and close the main body 100.

[0030] Please refer to it again. Figure 1 The front side wall of the main body 100 is embedded with a control panel 170, and the control panel 170 is electrically connected to the first motor 111, the second motor 120, the solenoid valve 142 and the water pump 210 via wires. The control panel 170 is used to control the first motor 111, the second motor 120, the solenoid valve 142 and the water pump 210. The model and specifications of the control panel 170 are well known to those skilled in the art, and will not be described in detail here.

[0031] In summary, raw materials are injected through the feed inlet 140, the first motor 111 is started to drive the vertical rod 112 and the stirring roller 113 to rotate, and the raw materials are stirred. The solenoid valve 142 is started to discharge the raw materials through the discharge pipe 141. The second threaded rod 221 can be rotated by manually turning the handle 224, which causes the second threaded block 222 to move under force, thereby driving the sealing gasket 223 to block the discharge pipe 141. The size of the outlet of the discharge pipe 141 is adjusted, thereby controlling the discharge speed and improving the convenience of discharge.

[0032] In practical use, those skilled in the art can start the water pump 210 via the control panel 170, injecting cool water into the inner cavity of the mounting ring 130 through the water pipe 211. The sprinkler head 131 will then spray cool water onto the mixing chamber 110 to cool it down. The second motor 120 will be started to rotate the first threaded rod 121, causing the first threaded block 122 to move under force, thereby moving the mounting ring 130 to evenly spray water onto the mixing chamber 110. The water pump 210 will then allow the cooled water, having absorbed heat, to pass through the recovery pipe 212. The material is recycled into the water tank 200 and can be cooled repeatedly. The raw material is injected through the feed port 140. The first motor 111 is started to drive the vertical rod 112 and the stirring roller 113 to rotate and stir the raw material. The solenoid valve 142 is started to discharge the raw material through the discharge pipe 141. The second threaded rod 221 can be rotated by manually turning the handle 224, which causes the second threaded block 222 to move under force, thereby driving the sealing gasket 223 to block the discharge pipe 141. The size of the outlet of the discharge pipe 141 is adjusted to control the discharge speed.

[0033] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0034] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A cooling device for the production of machine-grade stretch film, characterized in that: The device includes a main body (100) and a water tank (200). The water tank (200) is fixedly connected to the right side wall of the main body (100). A stirring chamber (110) is fixedly connected to the top of the inner cavity of the main body (100). A first motor (111) is fixedly connected to the top of the main body (100). A vertical rod (112) is fixedly connected to the end of the power output shaft of the first motor (111). A stirring roller (113) is fixedly connected to the outer side wall of the vertical rod (112), and they are arranged sequentially from top to bottom. In this configuration, a second motor (120) is fixedly connected to the bottom left side of the inner cavity of the main body (100). A first threaded rod (121) is fixedly connected to the end of the power output shaft of the second motor (120). A first threaded block (122) is screwed onto the outer wall of the first threaded rod (121). A mounting ring (130) is fixedly connected to the right side wall of the first threaded block (122). A sprinkler head (131) is fixedly connected to the inner side wall of the mounting ring (130), and the components are arranged sequentially from left to right. A water pump (210) is fixedly connected to the bottom of the inner cavity of the water tank (200). A water delivery pipe (211) is fixedly connected to the top of the water pump (210). The water delivery pipe (211) passes through the inner cavity of the water tank (200) and extends to the inner cavity of the mounting ring (130). A recovery pipe (212) is fixedly connected to the bottom of the water pump (210). The recovery pipe (212) passes through the inner cavity of the water tank (200) and extends to the inner cavity of the main body (100). (100) has mounting plates (220) fixedly connected to the bottom left and right sides. A second threaded rod (221) is rotatably connected between the left and right side walls of the mounting plate (220). A second threaded block (222) is screwed to the outer side wall of the second threaded rod (221). A sealing gasket (223) is fixedly connected to the top of the second threaded block (222). A handle (224) is fixedly connected to the end of the second threaded rod (221). The handle (224) passes through the mounting plate (220).

2. A cooling device for machine-grade stretch film production according to claim 1, characterized in that: A waterproof shell (123) is fixedly connected to the bottom left side of the inner cavity of the main body (100). The first threaded rod (121) passes through the waterproof shell (123) and extends to the outside of the waterproof shell (123).

3. A cooling device for machine-grade stretch film production according to claim 1, characterized in that: The top left side of the main body (100) has a feed inlet (140), and the bottom of the mixing chamber (110) is fixedly connected to a discharge pipe (141). The discharge pipe (141) passes through the inner cavity of the main body (100) and extends to the outer side of the main body (100). The inner wall of the discharge pipe (141) is fixedly connected to a solenoid valve (142).

4. A cooling device for machine-grade stretch film production according to claim 1, characterized in that: Support rods (150) are fixedly connected to the four bottom corners of the main body (100).

5. A cooling device for machine-grade stretch film production according to claim 1, characterized in that: The lower side of the front wall of the main body (100) is rotatably connected to a cabinet door (160) via a hinge.

6. A cooling device for machine-grade stretch film production according to claim 3, characterized in that: The front side wall of the main body (100) is embedded with a control panel (170), and the control panel (170) is electrically connected to the first motor (111), the second motor (120), the solenoid valve (142) and the water pump (210) via wires.