Adjustable blowing device

Abstract

The utility model discloses an adjustable blowing device which comprises a connecting plate, a hydraulic cylinder, a movable frame, an air guide pipe, a corrugated pipe and an air pump, the hydraulic cylinder is fixedly arranged on the connecting plate, and a hydraulic rod of the hydraulic cylinder penetrates through the connecting plate; the movable frame is fixedly arranged at the outer end of a hydraulic rod of the hydraulic cylinder; the air guide pipe is fixedly arranged at the outer end of the movable frame, and the air outlet end of the air guide pipe is inserted into an air head of a blowing mold; the corrugated pipe is arranged between the connecting plate and the movable frame; wherein the air guide pipe is communicated with the corrugated pipe; a connecting pipe is arranged between the air outlet end of the air pump and the corrugated pipe; wherein the connecting pipe is communicated with the corrugated pipe. The utility model has the advantages that the hydraulic cylinder provides power to drive the gas-guide tube to advance, the gas-guide tube is quickly butted with or separated from the gas head of the blowing mould, and the operation is convenient.

Description

Technical Field

[0001] This utility model relates to the field of plastic product processing technology, specifically to an adjustable inflation device. Background Technology

[0002] Plastic products are various products made from synthetic or modified polymer materials, and are widely used in daily life, industry, medical care, construction and other fields. Hollow plastic products are produced by blowing them with gas using a blow molding device.

[0003] An inflation device typically refers to a device that expands or shapes an object by injecting gas. The core of an inflation device is to change the shape or volume of an object through gas pressure. A heated plastic preform is placed in a mold, and high-pressure gas is injected to make it expand and fit against the inner wall of the mold. After cooling, it sets.

[0004] Generally, gas is injected after the air head of the inflation device is connected to the air head of the mold. When the mold is opened, the air head of the inflation device and the air head of the mold need to be separated. It is quite troublesome to remove the air head of the inflation device manually in a relatively high frequency.

[0005] In view of this, we propose an adjustable inflation device. Utility Model Content

[0006] The purpose of this invention is to provide an adjustable inflation device to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an adjustable inflation device, comprising a connecting plate, a hydraulic cylinder, a movable frame, an air guide pipe, a bellows pipe, and an air pump;

[0008] The hydraulic cylinder is fixed to the connecting plate, and the hydraulic rod of the hydraulic cylinder passes through the connecting plate;

[0009] The movable frame is fixed to the outer end of the hydraulic rod of the hydraulic cylinder;

[0010] The air guide tube is fixed to the outer end of the movable frame, and the air outlet end of the air guide tube is inserted into the air head of the blow molding mold.

[0011] The corrugated pipe is located between the connecting plate and the movable frame;

[0012] The air guide tube is connected to the corrugated tube;

[0013] A connecting pipe is provided between the air pump outlet and the corrugated pipe;

[0014] The connecting pipe is connected to the corrugated pipe.

[0015] Preferably, the extension length of the bellows is greater than the stroke of the hydraulic cylinder.

[0016] Preferably, the air guide tube is provided with a sealing structure, which includes a collar and a sleeve;

[0017] The collar is fitted onto the air guide tube;

[0018] The sleeve is fitted onto the air outlet end of the air guide tube;

[0019] Multiple springs are arranged in a ring array between the collar and the sleeve.

[0020] Preferably, the air outlet end of the air guide tube is in movable fit with the inner cavity of the sleeve.

[0021] Preferably, the bottom end of the sleeve is provided with an annular groove, and a sealing ring is embedded in the annular groove.

[0022] Preferably, the bottom end of the sealing ring is located outside the annular groove.

[0023] Compared with the prior art, the beneficial effects of this utility model are:

[0024] 1. This utility model, by setting up a connecting plate, hydraulic cylinder, movable frame and air guide pipe, has the advantages of hydraulic cylinder providing power to drive the air guide pipe to move, and the air guide pipe quickly connecting or separating from the air head of the blow molding die, which is convenient to operate. It solves the problem that when the mold is opened, the air head of the blow molding device and the air head of the mold need to be separated, and the air head of the blow molding device needs to be removed manually in a high frequency, which is quite troublesome.

[0025] 2. This utility model, by setting a collar, sleeve, spring and sealing ring, has the advantages of sealing the air guide tube when it is inserted into the mold and preventing air leakage when the air guide tube is venting into the mold. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0027] Figure 2 This is a schematic diagram of the sealing structure connection of this utility model;

[0028] Figure 3 This is a cross-sectional view of the sealing structure of this utility model.

[0029] Figure 4 For the present utility model Figure 3 Enlarged diagram of point A.

[0030] In the diagram: 100, connecting plate; 200, hydraulic cylinder; 300, movable frame; 400, air guide pipe; 500, sealing structure; 600, bellows; 700, connecting pipe; 800, air pump;

[0031] 501. Collar; 502. Sleeve; 503. Spring; 504. Sealing ring;

[0032] 5021, Annular groove. Detailed Implementation

[0033] 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.

[0034] Example 1, please refer to Figure 1 This utility model provides an embodiment of an adjustable inflation device, comprising a connecting plate 100, a hydraulic cylinder 200, a movable frame 300, an air guide pipe 400, a bellows pipe 600, and an air pump 800. The end of the connecting plate 100 is mounted on the frame beam via a mounting plate, bolts, and nuts, so that the air guide pipe 400 corresponds to the air head of the closed mold. The hydraulic cylinder 200 is fixed to the connecting plate 100. The hydraulic cylinder 200 can be selected and used by skilled personnel according to actual conditions. The hydraulic rod of the hydraulic cylinder 200 passes through the connecting plate 100. The movable frame 300... A 0 is fixed to the outer end of the hydraulic rod of the hydraulic cylinder 200; an air guide pipe 400 is fixed to the outer end of the movable frame 300, and the air outlet of the air guide pipe 400 is inserted into the air head of the blow molding mold. The air head of the blow molding mold adopts a self-locking mechanism, which self-locks after the air outlet of the air guide pipe 400 is inserted, and the air guide pipe 400 can also be directly pulled out; a bellows 600 is located between the connecting plate 100 and the movable frame 300; wherein, the air guide pipe 400 is connected to the bellows 600; a connecting pipe 700 is provided between the air outlet of the air pump 800 and the bellows 600; wherein, the connecting pipe 700 is connected to the bellows 600. The extension length of the bellows 600 is greater than the stroke of the hydraulic cylinder 200, and the bellows 600 will not be damaged during the extension process. The heated plastic preform is placed in the mold, the mold is closed, and the hydraulic cylinder 200 pushes the movable frame 300 to move relative to the mold until the air outlet of the air guide pipe 400 is connected to the air head of the blow molding mold. The air pump 800 pumps gas through the connecting pipe 700, the corrugated pipe 600, and the air guide pipe 400, and the gas enters the plastic preform in the mold, causing the plastic preform to expand and fit against the inner wall of the mold. After the plastic preform cools, it is demolded. The hydraulic cylinder 200 drives the movable frame 300 to move away from the mold until the air outlet of the air guide pipe 400 separates from the air head of the blow molding mold, and the mold is separated.

[0035] This utility model, by setting up a connecting plate 100, a hydraulic cylinder 200, a movable frame 300, and an air guide pipe 400, has the advantages of the hydraulic cylinder 200 providing power to drive the air guide pipe 400 to move, and the air guide pipe 400 quickly connecting or separating from the air head of the blow molding die, which is convenient to operate. It solves the problem that when the mold is opened, the air head of the blow molding device and the air head of the mold need to be separated, and it is relatively troublesome to remove the air head of the blow molding device frequently by manual means.

[0036] Example 2, please refer to Figures 1 to 4 This utility model provides an embodiment of an adjustable inflation device. A sealing structure 500 is provided on an air guide pipe 400. The sealing structure 500 includes a collar 501 and a sleeve 502. The collar 501 is sleeved on the air guide pipe 400; the sleeve 502 is sleeved at the air outlet end of the air guide pipe 400. Multiple springs 503 are arranged in a ring array between the collar 501 and the sleeve 502. The two ends of each spring 503 are fixedly connected to the collar 501 and the sleeve 502, respectively. The elastic coefficient of the springs 503 can be selected by those skilled in the art based on actual conditions. The air outlet end of the air guide pipe 400 is movably fitted with the inner cavity of the sleeve 502. An annular groove 5021 is formed at the bottom end of the sleeve 502, and a sealing ring 504 is embedded within the annular groove 5021. The bottom end of the sealing ring 504 is located outside the annular groove 5021. When the outlet end of the air duct 400 is inserted into the mold and aligns with the air head of the blow molding mold, the sleeve 502 contacts the outer wall of the mold and is held in place. The outlet end of the air duct 400 continues to be inserted and aligns with the air head inside the mold. The sleeve 502 and the air duct 400 move relative to each other, and the spring 503 is compressed. The reaction force generated by the compressed spring 503 causes the sleeve 502 to stick to the outer wall of the mold. The bottom end of the sealing ring 504 is squeezed into the annular groove 5021 by the outer wall of the mold. The reaction force generated by the squeezed sealing ring 504 presses against the outer wall of the mold, sealing the insertion point of the air duct 400 into the mold.

[0037] This utility model, by setting a collar 501, a sleeve 502, a spring 503 and a sealing ring 504, has the advantages of sealing the insertion point of the air guide tube 400 into the mold and preventing air leakage when the air guide tube 400 vents into the mold.

[0038] Working principle: The heated plastic preform is placed in the mold, the mold is closed, and the hydraulic cylinder 200 pushes the movable frame 300 to move relative to the mold. When the air outlet of the air guide pipe 400 is inserted into the mold and connects with the air head of the blow molding mold, the sleeve 502 contacts the outer wall of the mold and is blocked. The air outlet of the air guide pipe 400 continues to be inserted and connects with the air head in the mold. The sleeve 502 and the air guide pipe 400 move relative to each other, and the spring 503 is compressed. The reaction force generated by the compressed spring 503 makes the sleeve 502 stick to the outer wall of the mold. The bottom end of the sealing ring 504 is squeezed into the annular groove 5021 by the outer wall of the mold. The reaction force generated by the squeezed sealing ring 504 pushes against the outer wall of the mold until the air outlet of the air guide pipe 400 is inserted into the air head of the blow molding mold. The air pump 800 pumps the gas through the connecting pipe 700, the corrugated pipe 600 and the air guide pipe 400. The gas enters the plastic preform in the mold, causing the plastic preform to expand and stick to the inner wall of the mold. After the plastic preform cools and is demolded, the hydraulic cylinder 200 drives the movable frame 300 to move away from the mold until the air outlet of the air pipe 400 separates from the air head of the blow molding mold, and the mold separates.

[0039] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An adjustable inflation device, characterized in that: include: Connecting plate (100); A hydraulic cylinder (200) is mounted on the connecting plate (100); The movable frame (300) is located at the outer end of the hydraulic rod of the hydraulic cylinder (200); An air duct (400) is located at the outer end of the movable frame (300); A corrugated pipe (600) is disposed between the connecting plate (100) and the movable frame (300); The air guide pipe (400) is connected to the corrugated pipe (600); An air pump (800) is provided with a connecting pipe (700) between itself and the bellows (600); The connecting pipe (700) is connected to the corrugated pipe (600).

2. The adjustable inflation device according to claim 1, characterized in that: The extension length of the bellows (600) is greater than the stroke of the hydraulic cylinder (200).

3. The adjustable inflation device according to claim 1, characterized in that: The air guide tube (400) is provided with a sealing structure (500), the sealing structure (500) comprising: A collar (501) is fitted onto the air guide tube (400); A sleeve (502) is fitted onto the air outlet end of the air guide pipe (400); Multiple springs (503) are provided between the collar (501) and the sleeve (502).

4. An adjustable inflation device according to claim 3, characterized in that: The air outlet of the air duct (400) is in movable fit with the inner cavity of the sleeve (502).

5. An adjustable inflation device according to claim 3, characterized in that: The sleeve (502) has an annular groove (5021) at its bottom end, and a sealing ring (504) is embedded in the annular groove (5021).

6. An adjustable inflation device according to claim 5, characterized in that: The bottom end of the sealing ring (504) is located outside the annular groove (5021).

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