Blow molding heater bottle preform bottle mouth anti-deformation device

Abstract

The utility model relates to bottle embryo bottle mouth processing technical field, and disclose a kind of bottle embryo bottle mouth anti-deformation device of blow molding heating machine, including heating machine base, the front of heating machine base is provided with transport bottle embryo mechanism by support frame, the top of heating machine base is fixedly installed with L type support frame. By being provided with arc limiting bottle mouth plate under the driving of small -size cylinder, bottle embryo bottle mouth can be quickly, accurately limited and supported, when blow molding high-pressure gas is injected into bottle embryo, the pressure received by bottle mouth is shared, bottle mouth is prevented from deforming due to uneven stress or high-temperature softening, simultaneously, cooling part formed by air pump, cooling air cavity and blow hole can quickly cool bottle mouth, so that bottle mouth quickly reaches suitable forming temperature, product scrappage caused by bottle mouth deformation is reduced, raw material utilization is improved, production cost is reduced, and the effect of improving production efficiency is achieved.

Description

Technical Field

[0001] This utility model relates to the field of bottle preform and bottle neck processing technology, specifically a device for preventing deformation of bottle preform and bottle neck in a blow molding heating machine. Background Technology

[0002] Blow molding involves placing a molten plastic preform into a mold cavity, then introducing compressed air to inflate the preform and press it tightly against the mold cavity wall. After cooling and solidification, the blow-molded product is obtained. Blow-molded products are widely used in various industries such as packaging, daily necessities, and chemicals due to their advantages of low cost, high plasticity, and high production efficiency. Plastic bottles, as a common blow-molded product, directly affect the safety of storage and transportation of their contents. With increasing market competition and consumers' ever-increasing demands for product quality...

[0003] Traditional blow molding heating machines have several shortcomings in preform processing. Traditional clamping structures are relatively crude and struggle to adapt to different preform sizes. For preforms of varying diameters and heights, manual replacement or adjustment of the clamping mold is required, which is cumbersome and time-consuming. Even when clamping is possible, uneven clamping force is common. During high-temperature blow molding, uneven force can cause the preform to wobble or shift, resulting in uneven wall thickness and distorted shapes in the blow-molded bottles, severely impacting product quality. Furthermore, during blow molding, high-pressure gas is injected into the preform, causing it to expand and solidify. The bottle neck, as the open end of the preform, directly bears the gas pressure and is exposed to high temperatures, causing the material to soften and easily deform. Therefore, a device to prevent deformation of the bottle neck in a blow molding heating machine is needed. Utility Model Content

[0004] The purpose of this invention is to provide a device for preventing deformation of the bottle mouth of a blow molding heating machine preform, which solves the technical problems of preform offset and bottle mouth deformation in traditional methods, thereby improving production efficiency and quality.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a device for preventing deformation of the preform neck in a blow molding heating machine, comprising a heating machine base, a preform transport mechanism being provided on the front of the heating machine base via a support frame, an L-shaped support frame being fixedly installed on the top of the heating machine base, a control display box being fixedly installed on one outer wall of the L-shaped support frame via a support arm, a hydraulic lifting cylinder being fixedly installed on the top of the L-shaped support frame, a mounting support plate being fixedly installed on the connecting end of the hydraulic lifting cylinder via a connecting column, and a blow molding gun head being fixedly installed on the bottom of the mounting support plate. An air blowing tank is fixedly installed on the top of the L-shaped support frame. The air blowing tank has an air blowing connection pipe connected to its connection port, and the other end of the air blowing connection pipe is connected to the blow molding gun head. A clamping and cooling assembly is located above the heating machine base and below the L-shaped support frame. The clamping and cooling assembly includes: a bottle-clamping part located above the heating machine base; and a protective cooling part located above the heating machine base and below the L-shaped support frame, with the protective cooling part located above the bottle-clamping part.

[0006] Preferably, the bottle-holding and blowing part includes: a worktable, the worktable being fixedly installed on the top of the heating machine base; an adjusting slide rail is fixedly installed on the top of the worktable, and two slide rails are arranged in a symmetrical manner; a movable slide block is slidably connected to the outer wall of the adjusting slide rail, and two movable slide blocks are arranged in a symmetrical manner; an anti-deviation rail is fixedly installed on the top of the movable slide block, and two movable slide blocks are arranged in a symmetrical manner.

[0007] Preferably, the anti-deviation railing has guide wheels evenly spaced inside by connecting rods, and a heating blow molding clamping template one is fixedly installed on the top of the movable slide. A heating blow molding clamping template two is provided on one side of the heating blow molding clamping template one, and the heating blow molding clamping template one and the heating blow molding clamping template two are symmetrically arranged.

[0008] Preferably, the inner sidewalls of the first heating blow molding clamping template and the second heating blow molding clamping template are provided with bottle mold grooves.

[0009] Preferably, the protective cooling part includes: a clamping slide groove, which is formed on the top of the heating blow molding clamping template one and the heating blow molding clamping template two; a support frame, which is fixedly installed on the outer wall of the heating blow molding clamping template one, and there are two sets of the support frame; a movable slider is slidably connected inside the clamping slide groove, and a guide rod is movably passed through the outer wall of the movable slider, and the two ends of the guide rod are fixedly installed on the inner walls of the two sides of the small cylinder, and a small cylinder is provided above the clamping slide groove.

[0010] Preferably, the output end of the small cylinder is fixedly mounted with an arc-shaped limiting bottle mouth plate via a connecting rod, and the bottom of the arc-shaped limiting bottle mouth plate is fixedly connected to the bottom of the movable slider. A cooling air cavity is opened inside the arc-shaped limiting bottle mouth plate, and air blowing holes are evenly and equidistantly opened on the inner sidewall of the arc-shaped limiting bottle mouth plate, and the air blowing holes extend into the interior of the cooling air cavity.

[0011] Preferably, an air pump is fixedly installed on the top of the support frame, and the connection port of the air pump is connected to a connecting air duct, which extends into the interior of the cooling air chamber.

[0012] This utility model provides a device to prevent deformation of the bottle neck of a blow molding heating machine preform. It has the following beneficial effects:

[0013] (1) This utility model, by setting an adjustable slide rail and a movable slide block, can flexibly adjust the distance between the first heating blow molding clamping template and the second heating blow molding clamping template, adapt to the clamping requirements of different specifications of bottle preforms, ensure that the bottle preforms remain fixed during the high-temperature blow molding process, avoid blow molding defects caused by bottle preform shaking or displacement, make the blow-molded bottles accurate in size and regular in shape, effectively reduce the defect rate, and achieve the effect of improving product quality.

[0014] (2) This utility model, by setting an arc-shaped limiting bottle mouth plate under the drive of a small cylinder, can quickly and accurately limit and support the bottle mouth of the preform. When the high-pressure gas of blow molding is injected into the preform, it shares the pressure on the bottle mouth and prevents the bottle mouth from deforming due to uneven force or high temperature softening. At the same time, the cooling part composed of air pump, cooling air cavity and blowing hole can quickly cool the bottle mouth, so that the bottle mouth can quickly reach the appropriate molding temperature, reduce product scrap caused by bottle mouth deformation, improve raw material utilization, reduce production costs, and achieve the effect of improving production efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a side view of the structure of a device for preventing deformation of the bottle mouth of a blow molding heating machine preform according to this utility model;

[0017] Figure 3 This is a side view of the structure of the preform part of the anti-deformation device at the mouth of the preform in a blow molding heating machine according to the present invention.

[0018] Figure 4 This is a top view of the structure of the clamping part of the anti-deformation device for the bottle preform mouth of a blow molding heating machine according to this utility model.

[0019] In the diagram: 1. Heating machine base; 11. Preform transport mechanism; 2. L-shaped support frame; 3. Control display box; 4. Hydraulic lifting cylinder; 41. Mounting support plate; 42. Blowing gun head; 43. Blowing tank; 44. Blowing connecting pipe; 5. Clamping and cooling assembly; 51. Blowing clamping part; 511. Workbench; 512. Adjusting slide rail; 513. Moving slide; 514. Anti-deviation rail; 515. Guide wheel; 516. Heating and blowing clamping template one; 517. Heating and blowing clamping template two; 518. Bottle mold groove; 52. Protective cooling part; 521. Clamping slide; 522. Moving slider; 523. Guide rod; 524. Small cylinder; 525. Arc-shaped limiting bottle mouth plate; 526. Cooling air cavity; 527. Blowing hole; 528. Support frame; 529. Air pump; 5210. Connecting air pipe. Detailed Implementation

[0020] 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.

[0021] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention. Example 1:

[0022] Based on the existing problems of preform misalignment and bottle neck deformation in traditional methods, a preferred embodiment of the preform and bottle neck anti-deformation device for blow molding heating machines provided by this utility model is as follows: Figure 1-4As shown: A device for preventing deformation of bottle neck in a blow molding heating machine preform includes a heating machine base 1. A preform transport mechanism 11 is provided on the front of the heating machine base 1 via a support frame. An L-shaped support frame 2 is fixedly installed on the top of the heating machine base 1. A control display box 3 is fixedly installed on one outer wall of the L-shaped support frame 2 via a support arm. A hydraulic lifting cylinder 4 is fixedly installed on the top of the L-shaped support frame 2. A mounting support plate 41 is fixedly installed on the connecting end of the hydraulic lifting cylinder 4 via a connecting column. A blow molding gun head 42 is fixedly installed on the bottom of the mounting support plate 41. An air blowing nozzle is fixedly installed on the top of the L-shaped support frame 2. The canister 43 is connected to a blowing pipe 44 at its connection port, and the other end of the blowing pipe 44 is connected to the blowing nozzle 42. The clamping cooling assembly 5 is located above the heating machine base 1 and below the L-shaped support frame 2. The clamping cooling assembly 5 includes: a bottle-clamping part 51, which is located above the heating machine base 1; and a protective cooling part 52, which is located above the heating machine base 1 and below the L-shaped support frame 2, and is located above the bottle-clamping part 51.

[0023] The bottle-holding part 51 includes: a worktable 511, which is fixedly installed on the top of the heating machine base 1; an adjusting slide rail 512 is fixedly installed on the top of the worktable 511, and there are two sets in total, arranged symmetrically; a movable slide block 513 is slidably connected to the outer wall of the adjusting slide rail 512, and there are two sets in total, arranged symmetrically; an anti-deviation railing 514 is fixedly installed on the top of the movable slide block 513, and there are two sets in total, arranged symmetrically.

[0024] The anti-deviation guardrail 514 has guide wheels 515 evenly spaced inside through connecting rods. The top of the movable slide block 513 is fixedly installed with a heating blow molding clamping template 1 516. A heating blow molding clamping template 2 517 is provided on one side of the heating blow molding clamping template 1 516, and the heating blow molding clamping template 1 516 and the heating blow molding clamping template 2 517 are symmetrically arranged.

[0025] Bottle mold grooves 518 are provided on the inner side walls of the heating blow molding clamping template 1 516 and the heating blow molding clamping template 2 517.

[0026] Furthermore, this embodiment, by providing an adjustable slide rail 512 and a movable slide block 513, can flexibly adjust the distance between the first heating blow molding clamping template 516 and the second heating blow molding clamping template 517, adapting to the clamping requirements of preforms of different specifications, ensuring that the preforms remain fixed during the high-temperature blow molding process, avoiding blow molding defects caused by preform shaking or displacement, making the blow-molded bottles accurate in size and regular in shape, and effectively reducing the defect rate. Example 2:

[0027] Please see Figures 1-4Furthermore, based on Embodiment 1, the following is further obtained: the protective cooling part 52 includes: a clamping slide 521, which is opened on the top of the heating blow molding clamping template 1 516 and the heating blow molding clamping template 2 517; a support frame 528, which is fixedly installed on the outer wall of the heating blow molding clamping template 1 516, and there are two sets of support frames; a movable slider 522 is slidably connected inside the clamping slide 521, and a guide rod 523 is movably passed through the outer wall of the movable slider 522, and the two ends of the guide rod 523 are fixedly installed on the inner walls of the two sides of the small cylinder 524, and the small cylinder 524 is provided above the clamping slide 521.

[0028] An arc-shaped limiting bottle mouth plate 525 is fixedly installed at the output end of the small cylinder 524 via a connecting rod, and the bottom of the arc-shaped limiting bottle mouth plate 525 is fixedly connected to the bottom of the movable slider 522. A cooling air cavity 526 is opened inside the arc-shaped limiting bottle mouth plate 525, and air blowing holes 527 are evenly and equidistantly opened on the inner side wall of the arc-shaped limiting bottle mouth plate 525, and the air blowing holes 527 extend into the interior of the cooling air cavity 526.

[0029] An air pump 529 is fixedly installed on the top of the support frame 528. The connection port of the air pump 529 is connected to a connecting air duct 5210, and the connecting air duct 5210 extends into the interior of the cooling air chamber 526.

[0030] Furthermore, in this embodiment, an arc-shaped limiting bottle neck plate 525, driven by a small cylinder 524, can quickly and accurately limit and support the bottle neck of the preform. When high-pressure blow molding gas is injected into the preform, it shares the pressure on the bottle neck, preventing the bottle neck from deforming due to uneven force or high-temperature softening. At the same time, the cooling part composed of the air pump 529, cooling air chamber 526, and blowing hole 527 can quickly cool the bottle neck, allowing it to quickly reach the appropriate molding temperature. This reduces product scrap caused by bottle neck deformation, improves raw material utilization, and reduces production costs.

[0031] In use, the preform transport mechanism 11 first transports the preforms to be processed onto the worktable 511. During transport, the guide wheels 515 inside the anti-deviation railing 514 guide and limit the movement of the preforms, ensuring that they move smoothly along the predetermined path and preventing deviation.

[0032] Furthermore, after the preform reaches the designated position, the movable slide block 513 slides along the adjusting slide rail 512, causing the heated blow molding clamping template one 516 and the heated blow molding clamping template two 517 to move closer to the preform until the two clamp the preform tightly. The bottle mold groove 518 is adapted to the shape of the preform, providing a stable clamping force to keep the preform fixed during the subsequent blow molding process.

[0033] At this time, the hydraulic lifting cylinder 4 is activated, which drives the mounting support plate 41 and the blow molding gun head 42 to descend to the appropriate position via the connecting column. The gas in the blowing tank 43 is transported to the blow molding gun head 42 through the blowing connecting pipe 44. The high-pressure gas is injected into the bottle preform, causing the bottle preform to expand at high temperature and fit into the mold, thus completing the blow molding process.

[0034] Furthermore, during the blow molding process, a small cylinder 524 drives a moving slider 522 to slide within the clamping groove 521, causing the arc-shaped limiting bottle neck plate 525 to descend and precisely limit the bottle neck of the preform. The arc-shaped limiting bottle neck plate 525 not only supports the bottle neck and prevents it from deforming under blow molding pressure, but also achieves a cooling function using its internal cooling air chamber 526 and air blowing hole 527. The air pump 529 sends air into the cooling air chamber 526 through the connecting air pipe 5210, and the cold air is blown out through the air blowing hole 527 to quickly cool the bottle neck, reduce its temperature, enhance its hardness and structural stability, and effectively prevent the bottle neck from deforming due to high temperature softening during the blow molding process.

[0035] After blow molding and bottle neck cooling are completed, the hydraulic lifting cylinder 4 drives the blow gun head 42 to rise and reset, and the small cylinder 524 drives the arc-shaped limiting bottle neck plate 525 to rise and disengage from the bottle neck. The heated blow molding clamping template one 516 and the heated blow molding clamping template two 517 release the preform. Finally, the molded bottle is collected or transferred by subsequent processes, completing the entire preform blow molding process.

[0036] Throughout the entire workflow, the control display box 3 monitors and regulates the operating status of each component in real time, such as the lifting height of the hydraulic lifting cylinder 4, the extension distance of the small cylinder 524, and the gas flow rate of the air pump 529. Operators can set and adjust parameters through the control display box 3 according to actual production needs to ensure stable and effective operation of the device and produce qualified blow-molded products.

[0037] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A blow molding heater bottle neck anti-deformation device, comprising a heater base (1), characterized in that: The heating machine base (1) has a preform transport mechanism (11) on its front side via a support frame. An L-shaped support frame (2) is fixedly installed on the top of the heating machine base (1). A control display box (3) is fixedly installed on one side of the outer wall of the L-shaped support frame (2) via a support arm. A hydraulic lifting cylinder (4) is fixedly installed on the top of the L-shaped support frame (2). An installation support plate (41) is fixedly installed on the connecting end of the hydraulic lifting cylinder (4) via a connecting column. A blow gun head (42) is fixedly installed on the bottom of the installation support plate (41). An air blowing tank (43) is fixedly installed on the top of the L-shaped support frame (2). An air blowing connecting pipe (44) is connected to the connecting port of the air blowing tank (43), and the other end of the air blowing connecting pipe (44) is connected to the blow gun head (42). Clamping cooling assembly (5), which is disposed above the heating machine base (1) and below the L-shaped support frame (2); The clamping cooling assembly (5) includes: The bottle-holding part (51) is located above the heating machine base (1); The protective cooling part (52) is located above the heating machine base (1) and below the L-shaped support frame (2), and is located above the bottle-holding blowing part (51).

2. A device for preventing deformation of the finish of a blow molded heater bottle preform according to claim 1, characterized in that: The bottle-holding and blow molding portion (51) includes: A workbench (511) is fixedly installed on the top of the heating machine base (1); The top of the workbench (511) is fixedly equipped with an adjusting slide rail (512), and there are two sets in total, which are arranged symmetrically. The outer wall of the adjusting slide rail (512) is slidably connected with a movable slide block (513), and there are two sets in total, which are arranged symmetrically. The top of the movable slide block (513) is fixedly equipped with an anti-deviation railing (514), and there are two sets in total, which are arranged symmetrically.

3. The anti-deformation device for the bottle neck of a blow molding heating machine preform according to claim 2, characterized in that: The anti-deviation railing (514) has guide wheels (515) evenly spaced inside through connecting rods. The top of the movable slide (513) is fixedly installed with a heating blow molding clamping template one (516). A heating blow molding clamping template two (517) is provided on one side of the heating blow molding clamping template one (516), and the heating blow molding clamping template one (516) and the heating blow molding clamping template two (517) are symmetrically arranged.

4. The anti-deformation device for the bottle neck of a blow molding heating machine preform according to claim 3, characterized in that: Bottle mold grooves (518) are provided on the inner sidewalls of the heating blow molding clamping template one (516) and the heating blow molding clamping template two (517).

5. The anti-deformation device for the bottle neck of a blow molding heating machine preform according to claim 1, characterized in that: The protective cooling part (52) includes: Clamping groove (521) is formed on the top of heating blow molding clamping template one (516) and heating blow molding clamping template two (517); Support frame (528), the support frame (528) is fixedly installed on the outer wall of the heating blow molding clamping template (516), and there are two sets in total; The clamping groove (521) is slidably connected to a movable slider (522), and a guide rod (523) is movably passed through the outer wall of the movable slider (522). The two ends of the guide rod (523) are fixedly installed on the inner walls of the two sides of the small cylinder (524). The small cylinder (524) is provided above the clamping groove (521).

6. The anti-deformation device for the bottle neck of a blow molding heating machine preform according to claim 5, characterized in that: The output end of the small cylinder (524) is fixedly installed with an arc-shaped limiting bottle mouth plate (525) via a connecting rod, and the bottom of the arc-shaped limiting bottle mouth plate (525) is fixedly connected to the bottom of the movable slider (522). A cooling air cavity (526) is opened inside the arc-shaped limiting bottle mouth plate (525), and air blowing holes (527) are evenly and equidistantly opened on the inner side wall of the arc-shaped limiting bottle mouth plate (525), and the air blowing holes (527) extend into the interior of the cooling air cavity (526).

7. The anti-deformation device for the bottle neck of a blow molding heating machine preform according to claim 6, characterized in that: An air pump (529) is fixedly installed on the top of the support frame (528). The connection port of the air pump (529) is connected to a connecting air duct (5210), and the connecting air duct (5210) extends into the interior of the cooling air chamber (526).

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