Polyester bottle blow molding equipment with heating device
By designing heating devices and blow molding components, the problem of uneven heating of polyester bottles was solved, achieving uniform heating of polyester bottles and improving blow molding quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 盐城广达塑业有限公司
- Filing Date
- 2025-05-21
- Publication Date
- 2026-04-17
AI Technical Summary
The existing polyester bottles are not heated evenly before blow molding, which means that the polyester bottles near the edge of the furnace opening cannot be heated completely, affecting the blow molding quality.
Design a heating device that uses a heating component and a blow molding component, along with a gear ring, spur gear, and connecting rod, to make the polyester bottle rotate evenly outside the heating tube. The heating tube is equipped with heating tube one and heating tube two to ensure uniform heating of the polyester bottle. The device also uses a bidirectional lead screw and a shaped slider to move the blow molding die, thereby achieving die merging and separation.
This method achieves uniform heating of polyester bottles, reduces blow molding defects, and ensures production quality.
Smart Images
Figure CN224130437U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of polyester bottle production technology, and in particular relates to a polyester bottle blow molding equipment with a heating device. Background Technology
[0002] Polyester bottles refer to plastic containers made primarily of polyethylene terephthalate (PET). Due to their lightweight, transparency, impact resistance, and chemical stability, polyester bottles are widely used in beverages, food, and daily chemical products. The production process of polyester bottles includes injection molding of preforms and blow molding. The low-temperature resistance and convenience of polyester bottles make them a mainstream alternative to glass bottles. The global annual consumption reaches hundreds of billions of units, making them a typical representative of modern chemical packaging.
[0003] Existing polyester bottles are blow-molded by blow molding machines. Before blow molding, the polyester bottles are heated to soften them and facilitate the machine's blow molding process. However, polyester bottles are usually heated in a furnace, which makes the polyester bottles near the furnace edge susceptible to factors such as air and cannot be fully heated. This prevents the polyester bottles from fully unfolding during blow molding, affecting the machine's production quality. To address this, we propose a polyester bottle blow molding equipment with a heating device. Utility Model Content
[0004] The purpose of this invention is to provide a polyester bottle blow molding equipment with a heating device. Specifically, by activating heating element one, a spur gear is rotated, causing the gear ring to rotate. This rotation, in turn, drives ring one and ring two to rotate via a connecting rod. This allows ring one to rotate the polyester bottle outside heating element one, ensuring uniform heating and reducing the likelihood of defects during blow molding. This improves the production quality of the equipment and solves the problem that existing blow molding machines preheat polyester bottles to soften them for easier processing. However, these machines typically use furnaces for heating, which makes the bottles near the furnace edge susceptible to air and other factors, preventing them from being fully heated and hindering the complete unfolding of the bottle during blow molding, thus affecting the machine's production quality.
[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:
[0006] This utility model relates to a polyester bottle blow molding equipment with a heating device, comprising a heating assembly and a blow molding assembly. The blow molding assembly includes an assembly top cover, and the heating assembly includes an assembly outer box. A gear ring is rotatably connected to the top center inside the assembly outer box. A spur gear is meshed with the right side of the outer surface of the gear ring. A first circular ring is disposed below the gear ring, and a second circular ring is disposed below the first circular ring. The bottom of the second circular ring is rotatably connected to the bottom of the inner surface of the assembly outer box. Several connecting rods are fixedly connected to the bottom of the gear ring. A connecting rod passes through a circular ring and extends downwards. The outer surface of the connecting rod is fixedly connected to the inner surface of the circular ring at the point where it is passed through. The bottom of the connecting rod is fixedly connected to the top outer surface of the circular ring. A heating tube is fixedly connected to the bottom center of the component outer box. The top of the heating tube passes through the component outer box and extends into the interior of the component outer box. Circular protrusions are fixedly connected to the top of both the gear ring and the circular ring. The gear ring and the circular ring pass through the interior of the component outer box. The circular protrusions can limit the movement of the gear ring and the circular ring.
[0007] Furthermore, the component top cover is located on the top of the component outer box. A bidirectional lead screw is provided at the center of the rear side inside the component top cover. The left and right sides of the bidirectional lead screw penetrate the outer surface of the component top cover and extend outward. The outer surfaces of the left and right sides of the bidirectional lead screw are slidably connected to the inner surface of the component top cover where they are penetrated. L-shaped sliding plates are provided on the left and right sides of the top of the component top cover. The two L-shaped sliding plates are mirror images of the component top cover. Irregularly shaped sliders are fixedly connected to the front and back sides of the bottom of the two L-shaped sliding plates. The irregularly shaped sliders are provided with internal threads. The irregularly shaped sliders are slidably connected to the outer surface of the bidirectional lead screw through the internal threads. A blow molding mold is fixedly connected to the top of the L-shaped sliding plate. By setting the bidirectional lead screw, the irregularly shaped sliders can be moved by rotation, and then the L-shaped sliding plates are moved by the fixed connection between the irregularly shaped sliders and the L-shaped sliding plates.
[0008] Furthermore, the inner wall of the component outer box has an irregularly shaped groove, and a second heating tube is installed inside the irregularly shaped groove of the component outer box. The outer surface of the second heating tube is fixedly connected to the inner surface of the irregularly shaped groove of the component outer box. The top and bottom of the left side of the second heating tube penetrate the left outer surface of the component outer box and extend outward. The front of the component outer box has two component compartment doors, which are mirror images of the component outer box. The sides of the two component compartment doors that are far apart from each other are rotatably connected to the component outer box. The outer surface of the spur gear is fitted with a semi-circular shell. The left side of the semi-circular shell is fixedly connected to the right side of the component outer box. The top of the spur gear penetrates the semi-circular shell, extends upward, and is rotatably connected. A first motor is fixedly connected to the center of the top of the spur gear. The output end of the bottom of the first motor is fixedly connected to the top of the spur gear through a coupling. By setting the component compartment doors, the component outer box can be sealed when the heating component is working, preventing air from entering the component outer box and affecting the heating efficiency of the equipment.
[0009] Furthermore, a cylindrical slide bar is provided on the front side of the bidirectional lead screw. The left and right sides of the cylindrical slide bar are fixedly connected to the inner surface of the component top cover. The outer surface of the cylindrical slide bar is slidably connected to the inner surface of the irregularly shaped slider located on the front side. A second motor is provided on the left side of the bidirectional lead screw. The right side of the second motor is fixedly connected to the component top cover. The output end of the right side of the second motor is fixedly connected to the left side of the bidirectional lead screw through a coupling. A component sealing plate is fixedly connected to the bottom of the component top cover. The bottom of the component sealing plate is fixedly connected to the top of the component outer box. By providing the second motor, the movement of the irregularly shaped slider can be controlled, thereby adjusting the distance between the two blow molds.
[0010] Furthermore, each of the two blow molding dies has four threaded holes on the side away from each other. The threaded holes of the blow molding dies pass through the L-shaped slide plate and extend outward. Sealing strips are fixedly connected to the side of the two L-shaped slide plates that are close to each other. A blow molding machine is provided on the top of the component top cover. The left and right sides of the blow molding machine are fixedly connected to the outer surface of the component top cover. A blow molding machine nozzle is fixedly connected to the bottom center of the blow molding machine. By setting the sealing strips, the two blow molding dies can be tightly fitted together. The threaded connection between the blow molding dies and the L-shaped slide plate facilitates the replacement of the blow molding die style.
[0011] This utility model has the following beneficial effects:
[0012] 1. This utility model, by setting up a heating component, specifically starts the heating tube one, then rotates the spur gear, which drives the gear ring to rotate, and through the connecting rod drives the first and second rings to rotate. In this way, the first ring drives the polyester bottle to rotate outside the first heating tube, so that the polyester bottle can be heated evenly, making it less likely to produce defects during the blow molding of the polyester bottle and ensuring the production quality of the equipment.
[0013] 2. This utility model sets up a blow molding component, specifically by rotating a bidirectional lead screw counterclockwise, which causes the bidirectional lead screw to drive the irregularly shaped slider to move closer to each other through its outer surface. The irregularly shaped slider then drives the L-shaped slide plate to move, which in turn drives the blow molding mold to move. In this way, the mold can be combined into a whole, so that the polyester bottle placed inside the blow molding mold can be blow molded into the required shape.
[0014] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description
[0015] 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. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a schematic diagram of the overall front structure of this utility model;
[0017] Figure 2 This is a schematic cross-sectional view of the outer box of the component of this utility model;
[0018] Figure 3 This is a schematic diagram of the gear ring structure of this utility model;
[0019] Figure 4 This is a schematic diagram of the sealing strip structure of this utility model;
[0020] Figure 5 This is a cross-sectional view of the top cover of the component of this utility model.
[0021] The attached diagram lists the components represented by each number as follows:
[0022] 1. Heating component; 11. Component outer box; 121. Gear ring; 122. Ring one; 123. Ring two; 13. Connecting straight rod; 141. Spur gear; 142. Semi-circular outer shell; 143. Motor one; 151. Heating tube one; 152. Heating tube two; 16. Component compartment door; 2. Blow molding component; 21. Component top cover; 22. Component sealing plate; 231. Two-way lead screw; 232. Cylindrical slide bar; 24. Irregularly shaped slider; 251. L-shaped slide plate; 252. Blow molding mold; 253. Sealing strip; 261. Blow molding machine; 262. Blow molding machine nozzle; 27. Motor two. Detailed Implementation
[0023] 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 scope of protection of the present utility model.
[0024] Please see Figures 1-5 As shown, this utility model is a polyester bottle blow molding equipment with a heating device, including a heating component 1 and a blow molding component 2. The blow molding component 2 includes a component top cover 21, and the heating component 1 includes a component outer box 11. A gear ring 121 is rotatably connected to the top center inside the component outer box 11. A spur gear 141 is meshed with the right side of the outer surface of the gear ring 121. A first ring 122 is arranged below the gear ring 121, and a second ring 123 is arranged below the first ring 122. The bottom of the second ring 123 is rotatably connected to the bottom of the inner surface of the component outer box 11. Several connecting rods 13 are fixedly connected to the bottom of the gear ring 121. The connecting rods 13 pass through the first ring 122 and extend downward. The outer surface of the connecting rods 13 is connected to the part through which the first ring 122 is passed. The inner surface of the component is fixedly connected, and the bottom of the connecting rod 13 is fixedly connected to the top outer surface of the ring 123. A heating tube 151 is fixedly connected at the bottom center of the component outer box 11. The top of the heating tube 151 passes through the component outer box 11 and extends into the interior of the component outer box 11. By setting the heating component 1, specifically by starting the heating tube 151, and then rotating the spur gear 141, the spur gear 141 drives the gear ring 121 to rotate, and through the connecting rod 13, drives the ring 122 and the ring 123 to rotate. In this way, the ring 122 can drive the polyester bottle to rotate outside the heating tube 151, so that the polyester bottle can be heated evenly, making it less likely for defects to occur during the blow molding of the polyester bottle, and ensuring the production quality of the equipment.
[0025] The component top cover 21 is located on the top of the component outer box 11. A bidirectional lead screw 231 is located at the center of the rear side inside the component top cover 21. The left and right sides of the bidirectional lead screw 231 penetrate the outer surface of the component top cover 21 and extend outwards. The outer surfaces of the left and right sides of the bidirectional lead screw 231 are slidably connected to the inner surface of the component top cover 21 at the penetration points. L-shaped sliding plates 251 are located on the left and right sides of the top of the component top cover 21. The two L-shaped sliding plates 251 are mirror images of the component top cover 21. Irregularly shaped sliders 24 are fixedly connected to the front and back sides of the bottom of the two L-shaped sliding plates 251. The internal thread is provided, and the irregularly shaped slider 24 is slidably connected to the outer surface of the bidirectional lead screw 231 through the internal thread. The top of the L-shaped slide plate 251 is fixedly connected to the blow molding mold 252. By setting the blow molding component 2, specifically by rotating the bidirectional lead screw 231 counterclockwise, the bidirectional lead screw 231 drives the irregularly shaped slider 24 to move towards each other through its outer surface. The irregularly shaped slider 24 drives the L-shaped slide plate 251 to move, and the L-shaped slide plate 251 drives the blow molding mold 252 to move. In this way, the mold can be merged into a whole, so that the polyester bottle 0 placed inside the blow molding mold 252 can be blow molded into the required shape.
[0026] The inner wall of the component outer box 11 has an irregular groove. A heating tube 152 is installed inside the irregular groove of the component outer box 11. The outer surface of the heating tube 152 is fixedly connected to the inner surface of the irregular groove of the component outer box 11. The top and bottom of the left side of the heating tube 152 penetrate the outer surface of the left side of the component outer box 11 and extend outward. Two component doors 16 are provided on the front of the component outer box 11. The two component doors 16 are mirror images of the component outer box 11. The sides of the two component doors 16 that are far apart from each other are rotatably connected to the component outer box 11. A semi-circular shell 142 is fitted on the outer surface of the spur gear 141. The left side of the semi-circular shell 142 is fixedly connected to the right side of the component outer box 11. The top of the spur gear 141 penetrates the semi-circular shell 142 and extends upward and is rotatably connected. A motor 143 is fixedly connected to the center of the top of the spur gear 141. The output end of the bottom of the motor 143 is fixedly connected to the top of the spur gear 141 through a coupling.
[0027] A cylindrical slide rod 232 is provided on the front side of the bidirectional lead screw 231. The left and right sides of the cylindrical slide rod 232 are fixedly connected to the inner surface of the component top cover 21. The outer surface of the cylindrical slide rod 232 is slidably connected to the inner surface of the irregularly shaped slider 24 located on the front side. A second motor 27 is provided on the left side of the bidirectional lead screw 231. The right side of the second motor 27 is fixedly connected to the component top cover 21. The output end of the right side of the second motor 27 is fixedly connected to the left side of the bidirectional lead screw 231 through a coupling. A component sealing plate 22 is fixedly connected to the bottom of the component top cover 21. The bottom of the component sealing plate 22 is fixedly connected to the top of the component outer box 11. Four threaded holes are provided on the side of the two blow molding molds 252 that are far apart from each other. The threaded holes of the blow molding molds 252 pass through the L-shaped slide plate 251 and continue to extend outward. Sealing strips 253 are fixedly connected on the side of the two L-shaped slide plates 251 that are close to each other. A blow molding machine 261 is provided on the top of the component top cover 21. The left and right sides of the blow molding machine 261 are fixedly connected to the outer surface of the component top cover 21. A blow molding machine nozzle 262 is fixedly connected at the bottom center of the blow molding machine 261.
[0028] A specific application of this embodiment is as follows: In use, the polyester bottle is placed into the circular hole of the ring 122, then the heating tube 151 and the heating tube 152 are activated, and then the motor 143 is activated. The spur gear 141 inside the semi-circular outer shell 142 drives the gear ring 121 to rotate through meshing connection. And through the connecting rod 13, the ring 122 is driven to rotate, so that the equipment heats the polyester bottle evenly. After heating is completed, the component compartment door 16 is opened and the polyester bottle is taken out from the hole of the ring 122.
[0029] Then, start motor 27, causing the bidirectional lead screw 231 to rotate counterclockwise, driving the irregularly shaped slider 24 to move closer to each other, and driving the blow molding mold 252 to move through the L-shaped slide plate 251, so that the two blow molding molds 252 are merged together. Then, insert the heated polyester bottle into the inside of the blow molding mold 252, then start the blow molding machine 261, so that the blow molding machine nozzle 262 blows the polyester bottle. Then, rotate the bidirectional lead screw 231 clockwise to separate the two blow molding molds 252, and then take out the blow-molded polyester bottle.
[0030] 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.
[0031] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the present utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A polyester bottle blow molding apparatus with a heating device, characterized by: The assembly includes a heating component (1) and a blow molding component (2). The blow molding component (2) includes a component top cover (21). The heating component (1) includes a component outer box (11). A gear ring (121) is rotatably connected to the top center inside the component outer box (11). A spur gear (141) is meshed with the right side of the outer surface of the gear ring (121). A circular ring (122) is provided below the gear ring (121). Several circular holes are opened on the outer surface of the circular ring (122). A circular ring (123) is provided below the circular ring (122). The bottom of the circular ring (123) is connected to the outer surface of the component. The bottom of the inner surface of the box (11) is rotatably connected. Several connecting rods (13) are fixedly connected to the bottom of the gear ring (121). The connecting rods (13) pass through the first ring (122) and extend downward. The outer surface of the connecting rods (13) is fixedly connected to the inner surface of the first ring (122) where it is passed through. The bottom of the connecting rods (13) is fixedly connected to the top outer surface of the second ring (123). A heating tube (151) is fixedly connected to the bottom center of the component outer box (11). The top of the heating tube (151) passes through the component outer box (11) and extends into the interior of the component outer box (11).
2. A polyester bottle stretch blow molding apparatus with a heating device according to claim 1, characterized by The component top cover (21) is located on the top of the component outer box (11). A bidirectional lead screw (231) is provided at the center of the rear side inside the component top cover (21). The left and right sides of the bidirectional lead screw (231) penetrate the outer surface of the component top cover (21) and extend outward. The left and right outer surfaces of the bidirectional lead screw (231) are slidably connected to the inner surface of the component top cover (21) where it is penetrated. L-shaped sliding plates (251) are provided on the left and right sides of the top of the component top cover (21). The two L-shaped sliding plates (251) are mirror images of the component top cover (21) with the component top cover (21) as the center. The front and back sides of the bottom of the two L-shaped sliding plates (251) are fixedly connected to irregularly shaped sliders (24). The irregularly shaped sliders (24) are provided with internal threads. The irregularly shaped sliders (24) are slidably connected to the outer surface of the bidirectional lead screw (231) through the internal threads. A blow molding mold (252) is fixedly connected to the top of the L-shaped sliding plate (251).
3. A polyester bottle stretch blow molding apparatus with a heating device according to claim 2, characterized by The inner wall of the component outer box (11) has an irregular groove. A heating tube (152) is installed inside the irregular groove of the component outer box (11). The outer surface of the heating tube (152) is fixedly connected to the inner surface of the irregular groove of the component outer box (11). The top and bottom of the left side of the heating tube (152) both penetrate the left outer surface of the component outer box (11) and extend outward.
4. A polyester bottle stretch blow molding apparatus having a heating device according to claim 3, characterized by The front of the component outer box (11) is provided with two component compartment doors (16). The two component compartment doors (16) are mirror images of the component outer box (11) with the component outer box (11) as the center. The two component compartment doors (16) are rotatably connected to the component outer box (11) on the side that is far away from each other.
5. A polyester bottle stretch blow molding apparatus having a heating device according to claim 4, wherein The outer surface of the spur gear (141) is fitted with a semi-circular outer shell (142). The left side of the semi-circular outer shell (142) is fixedly connected to the right side of the component outer box (11). The top of the spur gear (141) extends upward through the semi-circular outer shell (142) and is rotatably connected. A motor (143) is fixedly connected to the center of the top of the spur gear (141). The output end of the bottom of the motor (143) is fixedly connected to the top of the spur gear (141) through a coupling.
6. A polyester bottle stretch blow molding apparatus having a heating device according to claim 2, wherein A cylindrical slide rod (232) is provided on the front side of the bidirectional lead screw (231). The left and right sides of the cylindrical slide rod (232) are fixedly connected to the inner surface of the component top cover (21). The outer surface of the cylindrical slide rod (232) is slidably connected to the inner surface of the irregular slider (24) located on the front side. A second motor (27) is provided on the left side of the bidirectional lead screw (231). The right side of the second motor (27) is fixedly connected to the component top cover (21). The output end of the right side of the second motor (27) is fixedly connected to the left side of the bidirectional lead screw (231) through a coupling. A component sealing plate (22) is fixedly connected to the bottom of the component top cover (21). The bottom of the component sealing plate (22) is fixedly connected to the top of the component outer box (11).
7. A polyester bottle stretch blow molding apparatus having a heating device according to claim 2, characterized by Four threaded holes are provided on the side of each of the two blow molding dies (252) that are far apart from each other. The threaded holes of the blow molding dies (252) pass through the L-shaped slide plate (251) and extend outward. Sealing strips (253) are fixedly connected on the side of each of the two L-shaped slide plates (251) that are close to each other. A blow molding machine (261) is provided on the top of the component top cover (21). The left and right sides of the blow molding machine (261) are fixedly connected to the outer surface of the component top cover (21). A blow molding machine nozzle (262) is fixedly connected at the bottom center of the blow molding machine (261).