A cooling structure for a linear bottle blowing machine
Patent Information
- Application Number
- CN202522611723.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-09
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-12-09
AI Technical Summary
Existing linear blow molding machines have cooling devices that cause plastic bottles to deform due to sudden cooling and waste heat resources.
It adopts a combined structure of cooling box, heat exchanger and air-cooled component. The heat exchanger initially cools down and collects heat, and the air-cooled component performs secondary cooling to reduce heat waste.
It achieves a gentle cooling effect on plastic bottles, avoids bottle deformation, and improves heat utilization efficiency.
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Figure CN224928491U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of blow molding machines and their accessories, and in particular relates to a cooling structure for a linear blow molding machine. Background Technology
[0002] Linear blow molding machines are efficient and precise plastic bottle production equipment. They adopt a linear structure design and are suitable for blowing various containers such as mineral water, beverage, and oil bottles. The cooling structure is one of its standard accessories. The cooling structure is three-stage: the first and middle stages are stepped temperature air-cooled structures, and the tail end is a water-cooled structure. The air-cooled structure is used to reduce the bottle temperature in stages to prevent the bottle from deforming due to sudden cooling, while the water-cooled structure is used to further stabilize the bottle temperature.
[0003] Chinese patent application CN210501370U discloses a cooling device for a linear blow molding machine with good cooling effect. The device includes a blow molding machine conveyor table, legs, conveyor rollers, and a conveyor plate. Four legs are vertically fixed to the four corners of the bottom of the conveyor table. The conveyor rollers are equidistantly rotatable from left to right within the inner cavity of the upper surface of the conveyor table. The conveyor plate is horizontally laid on the upper surface of the conveyor rollers. A fixed frame is fixedly connected to the top of the conveyor table. The fixed frame includes four supports, which are vertically fixed to the front and back of the top of the conveyor table. A fan is installed on the top of the fixed frame. This invention, through the design of the fixed frame, fan, air supply pipe, connecting pipe, blowing plate, and air outlet, effectively achieves the advantages of simple structure, convenient use, and good cooling effect for plastic bottles.
[0004] The aforementioned cooling device for a linear blow molding machine with good cooling effect has a U-shaped air blowing plate installed inside its fixed frame. Air outlets are located on the left, right, and top sides of the air blowing plate, directly facing the plastic bottle. This means the cooling method involves blowing cold air directly onto the bottle body. However, the bottle has just finished blowing, and being directly exposed to cold air causes a rapid drop in temperature, potentially leading to bottle deformation. Furthermore, since the fixed frame is installed above the conveyor table of the blow molding machine and contains the air blowing structure, the heat blown away dissipates to the outside of the fixed frame, resulting in heat loss. Therefore, we provide a cooling structure for a linear blow molding machine to solve the problems mentioned above. Utility Model Content
[0005] The purpose of this invention is to provide a cooling structure for a linear blow molding machine. The heat exchanger can achieve a preliminary and gentle cooling effect, and the air-cooling component can achieve a secondary cooling effect, thereby achieving a cooling effect on the plastic bottle. The heat exchanger can also collect the heat of the plastic bottle during the initial cooling and provide it to the air-cooling component, reducing the waste of heat resources and solving the problems of existing cooling devices for linear blow molding machines with good cooling effect.
[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model relates to a cooling structure for a linear blow molding machine, comprising a cooling box; an installation assembly is installed on the bottom side wall of the cooling box, the installation assembly includes an installation plate fixed to the bottom side wall of the cooling box, and an adjusting component installed in the installation plate; a heat exchanger is also embedded in the outer wall at the head position of the cooling box; a partition is also provided on the inner wall of the cooling box; and an air-cooling assembly is also installed in the tail area of the cooling box, the air-cooling assembly includes a fan mounted above the cooling box, and an exhaust plate embedded in the inner wall of the partition; the fan is connected to the exhaust plate through an exhaust pipe, and the fan is connected to the heat exchanger through an intake pipe.
[0007] The present invention is further configured such that the mounting components are provided in two groups, each group having three mounting components, the three mounting components being equally spaced apart, and a screw sleeve being fixedly installed on the mounting plate.
[0008] The present invention is further configured such that the adjusting component includes an adjusting stud threadedly connected to the screw sleeve, and an abutment plate and a rotating handle are respectively installed at both ends of the adjusting stud. The rotating handle is located on the outside of the cooling box for holding and pushing the adjusting stud to rotate. The abutment plate is located on the inside of the cooling box for abutting against the outer wall of the conveyor belt frame of the linear blow molding machine.
[0009] The present invention is further configured such that there are three partitions in total, two of which are respectively disposed on the inner wall of the cooling box corresponding to both ends of the heat exchanger, and the other partition is disposed on the inner wall of the cooling box corresponding to the air-cooled component.
[0010] The present invention is further configured such that a notch is provided on the partition plate, and the partition plate fits into the body of the plastic bottle on the conveyor belt of the linear blow molding machine through the notch. An inner groove is also provided on the inner wall of the notch of the partition plate located below the air-cooling component.
[0011] The present invention is further configured such that an upper groove is provided at the top center of the inner groove, and a top groove is provided in the upper side wall of the cooling box corresponding to the upper groove.
[0012] The present invention is further configured such that an air inlet pipe is installed at the air inlet end of the fan, and an air inlet cover is sleeved at the end of the air inlet pipe, and the air inlet pipe is connected to the heat outlet of the heat exchanger through the air inlet cover.
[0013] The present invention is further configured such that an air outlet pipe is installed at the air outlet end of the fan, an air inlet is provided on the upper side wall of the exhaust plate, and the air outlet pipe passes through the top groove and the upper groove and connects to the air inlet of the exhaust plate, and multiple air outlets are equally spaced and installed on the inner walls of the left and right sides and the inner wall of the top of the exhaust plate.
[0014] This utility model has the following beneficial effects: 1. This utility model includes a cooling box, mounting components, and a heat exchanger. The cooling box has two sets of mounting components, each with three components, located on the front and rear sides of the cooling box bottom. The three components in each set are evenly spaced. Each mounting component includes a mounting plate fixed to the side wall of the cooling box bottom. A threaded sleeve is fixed to the mounting plate, and an adjusting component is mounted on the mounting plate. The adjusting component includes an adjusting stud threaded to the threaded sleeve. A contact plate and a rotating handle are respectively mounted at both ends of the adjusting stud. The adjusting stud abuts against the side wall of the conveyor belt frame on the linear blow molding machine production line via the contact plate. The rotating handle is used to hold and push the adjusting stud to rotate within the threaded sleeve. A groove is also formed on the outer wall of the cooling box head, reducing the wall thickness. A heat exchanger is installed within this groove, allowing heat accumulated at the cooling box head to dissipate. The heat exchanger performs heat exchange in this area, and because the wall thickness of this area is small, the heat exchanger can better transfer heat. During use, the inner walls of the cooling box corresponding to both ends of the heat exchanger are equipped with baffles, and the baffles have notches and slots that fit the plastic bottle body. The plastic bottle, which has just finished blowing on the linear blow molding machine, moves gradually along the conveyor belt towards the location of the cooling box and smoothly passes through the notches and slots into the interior of the cooling box. When it enters the cooling box, the plastic bottle will first be in the area where the heat exchanger is located. At this time, the plastic bottle has just finished blowing and its own temperature is high, so it will naturally radiate heat to the outside. This heat will be transferred to the inner wall of the cooling box. Because the wall of the cooling box in this area is thin and covered by the heat exchanger, the heat in this area will be quickly exchanged away by the heat exchanger, thus achieving a preliminary and relatively gentle cooling effect on the plastic bottle.
[0015] 2. This utility model comprises a cooling box, a heat exchanger, and an air-cooling assembly. The head area of the cooling box is covered by the heat exchanger, and the tail area is equipped with the air-cooling assembly. A partition is installed on the inner wall of the cooling box, which is located in the middle of the area containing the air-cooling assembly. The partition has an inner groove on its inner wall and an upper groove at its top. A top groove is formed in the upper side wall of the cooling box corresponding to the upper groove. The air-cooling assembly includes a fan fixed to the upper outer wall of the cooling box. The fan has an inlet pipe and an outlet pipe. The outlet pipe extends through the top groove and upper groove into the inner groove of the partition. An inlet shroud is provided at the end of the inlet pipe, which connects to the heat outlet of the heat exchanger. The inlet pipe absorbs heat exchanged by the heat exchanger through the heat outlet and also draws air from the area where the heat exchanger is located. The air is fed into the fan, and an exhaust plate is also embedded in the inner groove of the partition plate. Multiple air outlets are evenly spaced on the left and right side walls and the top inner wall of the exhaust plate. When in use, the fan works, and the air inlet pipe absorbs the heat exchanged by the heat exchanger through the heat outlet. On the other hand, it draws air from the area where the heat exchanger is located and inputs it into the fan. Under the acceleration of the fan, the air is blown towards the exhaust pipe. Since the end of the exhaust pipe is connected to the exhaust plate, the airflow will enter the inner wall of the exhaust plate along the exhaust pipe and be blown towards the plastic bottles on the conveyor belt passing through the area where the air-cooling components are located through the air outlets. This achieves the effect of secondary air blowing and cooling. Moreover, the air coming out of this part is not cold air, but air with a lower temperature, to avoid the plastic bottle body cracking caused by direct cold air blowing. Attached Figure Description
[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.
[0017] Figure 1 This is a schematic diagram of a cooling structure for a linear blow molding machine. Figure 1 .
[0018] Figure 2 This is a schematic diagram of a cooling structure for a linear blow molding machine. Figure 2 .
[0019] Figure 3 This is a structural disassembly diagram of the cooling box, mounting components, and heat exchanger.
[0020] Figure 4 This is a structural diagram of the partition and air-cooling components.
[0021] Figure 5 This is a structural disassembly diagram of the partition and air-cooling components.
[0022] The attached diagram lists the components represented by each number as follows: 1-Cooling box, 101-Top slot, 2-Mounting assembly, 201-Mounting plate, 201a-Screw sleeve, 202-Adjusting component, 202a-Adjusting stud, 202b-Abutment plate, 202c-Rotating handle, 3-Baffle plate, 301-Notch slot, 302-Inner slot, 303-Upper slot, 4-Heat exchanger, 401-Heat outlet, 5-Air-cooled assembly, 501-Fan, 501a-Inlet pipe, 501b-Inlet hood, 501c-Outlet pipe, 502-Exhaust plate, 502a-Inlet, 502b-Outlet nozzle. Detailed Implementation
[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0024] Example 1 Please see Figures 1-3 This utility model is a cooling structure for a linear blow molding machine, including a cooling box 1, a mounting assembly 2 and a heat exchanger 4. The cooling box can be mounted above the conveyor belt frame of the linear blow molding machine through the mounting assembly 2 to cover the plastic bottles on the conveyor belt. Then, the heat exchanger 4 provides a relatively gentle cooling treatment for the plastic bottles entering the cooling box 1.
[0025] Specifically, mounting components 2 are provided on the front and rear side walls of the bottom of the cooling box 1. Each set of mounting components 2 has three components, and the brackets of the three mounting components 2 are equally spaced. The mounting components 2 include mounting plates 201 fixed to the bottom side walls of the cooling box 1. A screw sleeve 201a is provided in the mounting plate 201. An adjusting component 202 is also provided in the mounting plate 201. The adjusting component 202 includes an adjusting stud 202a that is threadedly connected to the screw sleeve 201a. An abutment plate 202b and a rotating handle 202c are respectively installed at both ends of the adjusting stud 202a. The rotating handle 202c is located on the outside of the cooling box 1 and is used to hold and push the adjusting stud 202a to rotate. The abutment plate 202b is located on the inside of the cooling box 1 and is used to abut against the outer wall of the conveyor belt frame of the linear blow molding machine.
[0026] Furthermore, a groove is provided on the outer wall of the head position of the cooling box 1, and a heat exchanger 4 is installed in the groove. The groove area reduces the wall thickness of the cooling box 1, thereby improving the heat transfer efficiency of the cooling box 1 in this area, and thus enabling the heat exchanger 3 to perform better heat exchange.
[0027] The operation process of this embodiment is as follows: During use, since the inner walls of the cooling boxes 1 corresponding to the beginning and end of the heat exchanger 4 are equipped with partitions 3, and the partitions 3 are provided with notches 301 that fit the plastic bottle body, the plastic bottle that has completed the blowing process on the linear blow molding machine will move gradually towards the location of the cooling box 1 along the conveyor belt and smoothly pass through the notches 301 to enter the interior of the cooling box 1. After entering the cooling box 1, the plastic bottle will first be located in the area where the heat exchanger 4 is located. At this time, the plastic bottle has just completed the blowing process and its own temperature is high, so it will naturally radiate heat to the outside. This part of the heat will be transferred to the inner wall of the cooling box 1. Since the wall of the cooling box 1 in this area is relatively thin and is covered by the heat exchanger 4, the heat in this area will be quickly exchanged away under the action of the heat exchanger 4, thereby achieving a preliminary and relatively gentle cooling effect on the plastic bottle.
[0028] Example 2 Please see Figures 4-5 Based on embodiment 1, an air-cooling component 5 is also provided. The air-cooling component 5 absorbs the heat exchanged by the heat exchanger 4 through the fan 501, and also absorbs gas from the external environment. The mixed gas is discharged into the internal environment of the tail section of the cooling box 1 through the exhaust plate 502, thereby achieving a secondary cooling effect of blowing air onto the plastic bottle.
[0029] Specifically, the cooling box 1 has three partitions 3 inside, and the partitions 3 are provided with notches 301. Two partitions 3 are located at both ends of the heat exchanger 4, and the other partition 3 is located at the location of the air-cooled component 5. The inner wall of the notch 301 of the partition 3 at the location of the air-cooled component 5 is provided with an inner groove 302, and the top of the inner groove 302 is provided with an upper groove 303. The top side wall of the cooling box 1 corresponding to the upper groove 303 is provided with a top groove 101.
[0030] Furthermore, the air-cooled assembly 5 includes a fan 501 mounted directly above the top trough 101. The fan 501 is equipped with an inlet pipe 501a and an outlet pipe 501c. The outlet pipe 501c extends through the top trough 101 and the upper trough 303 to one side of the interior of the partition plate 3. An inlet shroud 501b is provided at the end of the inlet pipe 501a. The inlet shroud 501b is mounted on the heat outlet 401 of the heat exchanger 4. The side wall of the inlet shroud 501b is hollowed out. The air-cooled assembly 5 also includes an exhaust plate 502 embedded in the inner wall of the inner groove 302, and multiple air outlets 502b are embedded in the inner walls on the left and right sides and the top inner wall of the exhaust plate 502 at equal intervals. An air inlet 502a is opened on the upper side wall of the exhaust plate 502, and the end of the air outlet pipe 501c is connected to the air inlet 502a of the exhaust plate 502.
[0031] The operation process of this embodiment is as follows: When in use, the fan 501 works, and its air inlet pipe 501a absorbs the heat exchanged by the heat exchanger 4 through the heat outlet 401. On the other hand, it absorbs air from the area where the heat exchanger 4 is located and inputs it into the fan 501. Under the acceleration of the fan, the air is blown towards the air outlet pipe. Since the end of the air outlet pipe is connected to the exhaust plate, the airflow will enter the inner wall of the exhaust plate along the air outlet pipe and be blown towards the plastic bottles on the conveyor belt passing through the area where the air-cooling component is located through the air outlet nozzle. This achieves the effect of secondary air blowing and cooling. Moreover, the air coming out of this part is not cold air, but air with a lower temperature, to avoid the phenomenon of cracking of the plastic bottle body caused by direct cold air blowing.
[0032] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," 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.
Claims
1. A cooling structure for a linear blow molding machine, comprising a cooling box (1); characterized in that: An installation assembly (2) is installed on the bottom side wall of the cooling box (1). The installation assembly (2) includes an installation plate (201) fixed on the bottom side wall of the cooling box (1) and an adjustment component (202) installed in the installation plate (201). A heat exchanger (4) is also embedded on the outer wall at the head position of the cooling box (1). A partition (3) is also provided on the inner wall of the cooling box (1). An air-cooling assembly (5) is also installed in the tail area of the cooling box (1). The air-cooling assembly (5) includes a fan (501) mounted on the top of the cooling box (1) and an exhaust plate (502) embedded on the inner wall of the partition (3). The fan (501) is connected to the exhaust plate (502) through an exhaust pipe (501c) and the fan (501) is connected to the heat exchanger (4) through an intake pipe (501a).
2. The cooling structure for a linear blow molding machine according to claim 1, characterized in that, The mounting components (2) are provided in two groups, and each group of mounting components (2) is provided with three components. The three mounting components (2) are arranged at equal intervals. A screw sleeve (201a) is fixedly installed on the mounting plate (201).
3. The cooling structure for a linear blow molding machine according to claim 2, characterized in that, The adjusting component (202) includes an adjusting stud (202a) threadedly connected to a screw sleeve (201a). The two ends of the adjusting stud (202a) are respectively equipped with an abutment plate (202b) and a rotating handle (202c). The rotating handle (202c) is located on the outside of the cooling box (1) and is used to hold and push the adjusting stud (202a) to rotate. The abutment plate (202b) is located on the inside of the cooling box (1) and is used to abut against the outer wall of the conveyor belt frame of the linear blow molding machine.
4. The cooling structure for a linear blow molding machine according to claim 1, characterized in that, There are three partitions (3), two of which are respectively set on the inner wall of the cooling box (1) corresponding to both ends of the heat exchanger (4), and the other partition (3) is set on the inner wall of the cooling box (1) corresponding to the air-cooled component (5).
5. A cooling structure for a linear blow molding machine according to claim 4, characterized in that, The partition (3) has a notch (301) and the partition (3) fits into the body of the plastic bottle on the conveyor belt of the linear blow molding machine through the notch (301). An inner groove (302) is also provided on the inner wall of the notch (301) of the partition (3) located below the air-cooling component (5).
6. A cooling structure for a linear blow molding machine according to claim 5, characterized in that, The inner groove (302) has an upper groove (303) at the top center, and the upper side wall of the cooling box (1) corresponding to the upper groove (303) has a top groove (101).
7. A cooling structure for a linear blow molding machine according to claim 6, characterized in that, The fan (501) has an air inlet pipe (501a) installed at its air inlet end, and an air inlet cover (501b) is also fitted at the end of the air inlet pipe (501a). The air inlet pipe (501a) is connected to the heat outlet (401) of the heat exchanger (4) through the air inlet cover (501b).
8. A cooling structure for a linear blow molding machine according to claim 6, characterized in that, The blower (501) is equipped with an air outlet pipe (501c) at its air outlet end. The upper side wall of the exhaust plate (502) is provided with an air inlet (502a). The air outlet pipe (501c) passes through the top groove (101) and the upper groove (303) and is connected to the air inlet (502a) of the exhaust plate (502). Multiple air outlets (502b) are evenly spaced and installed on the inner walls of the left and right sides and the inner wall of the top of the exhaust plate (502).
Citation Information
Patent Citations
The cooling device for linear bottle blowing machine is good in cooling effect
CN210501370U
