Improved adjustable plastic bottle blowing mold

Abstract

The utility model relates to an improved adjustable plastic bottle blowing mold. The improved adjustable plastic bottle blowing mold comprises a bottom plate, a base, a mold cylinder, a material injection pipe and an adjusting assembly, the mold barrel is installed on the bottom plate through the base, the feeding end of the mold barrel is sleeved with the material injection pipe, the material injection pipe is communicated with the mold barrel, and the adjusting assembly is arranged on the bottom plate; an injection molding cavity is formed in the mold cylinder in the transverse direction, the adjusting assembly comprises at least two supporting plates, and the at least two supporting plates are both perpendicularly installed on the bottom plate. According to the improved adjustable plastic bottle blowing mold, the output end of the air cylinder stretches out and draws back to drive the adjusting plate connected with the output end of the air cylinder to extend into the mold barrel, when the depth of the adjusting plate extending into the mold barrel is deeper, the length of an injection-molded plastic bottle is shorter, and meanwhile the air cylinder is electrically connected with control equipment in the outside, so that the plastic bottle is more stable in injection molding. And the extending length of the output end of the air cylinder can be effectively and accurately adjusted, so that the length of an injection-molded plastic bottle is adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic bottle production, in particular to an improved adjustable plastic bottle blow molding mold. Background Art

[0002] Blow molding technology is a rapidly developing plastic processing method. The tubular plastic parison obtained by extrusion or injection molding of thermoplastic resin is placed in a split mold while hot. After the mold is closed, compressed air is immediately introduced into the parison to inflate the plastic parison and cling to the inner wall of the mold. After cooling and demolding, various hollow products are obtained.

[0003] When blow-molding plastic bottles, a blow-molding mold is required. However, due to the different sizes of plastic bottles, different sized molds need to be used when blow-molding plastic bottles of different sizes, which is troublesome to operate and reduces the efficiency of plastic bottle production. Moreover, most of the current injection molds are usually formed by a combination of an upper mold and a lower mold, and there is more or less a certain gap between the two. Plastic bottles produced by such molds usually have strips of plastic on both sides, which need to be polished later. In addition, the polishing of the plastic bottles later requires additional processes and time, which increases the time and labor costs in the production process. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides an improved adjustable plastic bottle blow molding mold, which solves the problem that molds of different sizes need to be used when blow molding plastic bottles of different sizes, which causes troublesome operation.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an improved adjustable plastic bottle blow molding mold, comprising a bottom plate, a base, a mold barrel, an injection pipe and an adjustment component;

[0006] The mold barrel is mounted on the bottom plate through a base, the injection pipe is sleeved on the feed end of the mold barrel and communicated with the mold barrel, and the adjustment component is arranged on the bottom plate;

[0007] The mold cylinder has an injection cavity formed in the transverse direction inside;

[0008] The adjustment assembly includes at least two support plates, at least two of the support plates are vertically mounted on the bottom plate, a slide plate is slidably connected between opposite sides of at least two of the support plates, a mounting plate is mounted on the slide plate, a cylinder is arranged on the mounting plate, an output end of the cylinder is transmission-connected to an adjustment plate, and the adjustment plate is slidably connected to the inside of the mold cylinder.

[0009] Furthermore, the mold cylinder is in the shape of a cylinder with a hollow interior and a missing side close to the cylinder.

[0010] Furthermore, the outer diameter of the adjustment plate is adapted to the inner diameter of the mold cylinder.

[0011] Furthermore, a sealing plate is installed on one side of the adjustment plate close to the cylinder, and the sealing plate is sleeved on the output end of the cylinder.

[0012] Furthermore, the sealing plate is a polytetrafluoroethylene pad, and the thickness of the sealing plate is not less than one centimeter.

[0013] Furthermore, a through hole is provided inside the mounting plate for the output end of the air cylinder to move left and right.

[0014] Further, the adjustment assembly also includes a lifting structure, and the lifting structure includes a horizontal plate and a screw rod;

[0015] The transverse plate is assembled on the top of at least two supporting plates, the screw rod is threadedly connected inside the transverse plate, and the bottom end of the screw rod is rotatably connected to the slide plate through a bearing.

[0016] Furthermore, at least one side of the two supporting plates facing each other is provided with a slide groove, and the left and right sides of the slide plate are provided with sliding blocks adapted to the slide groove.

[0017] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0018] 1. The improved adjustable plastic bottle blow molding mold drives the adjustment plate connected to it to extend into the interior of the mold barrel through the telescopic output end of the cylinder. The deeper the adjustment plate extends into the interior of the mold barrel, the shorter the length of the molded plastic bottle. At the same time, by electrically connecting the cylinder to the control device in the outside world, the extension length of the cylinder output end can be effectively and accurately adjusted, thereby adjusting the length of the molded plastic bottle.

[0019] 2. The improved adjustable plastic bottle blow molding mold can effectively avoid the appearance of butt gaps on the inner wall of the mold and the appearance of long plastic strips on the outside of the plastic bottle by integrally forming the mold barrel. The output end of the cylinder is retracted by controlling the adjusting plate and the sealing plate to move out of the mold barrel at the same time. Then, the screw is rotated to drive the slide connected thereto to move upward, so that the adjusting plate and the sealing plate move to the inside of the mold barrel. At this time, the plastic bottle formed in the mold barrel can be taken out. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the adjustment component of the utility model;

[0022] Figure 3 It is a rear view structural schematic diagram of the adjustment component of the utility model.

[0023] In the figure: 1. bottom plate; 2. base; 3. mold barrel; 4. injection pipe; 5. adjustment assembly; 501. support plate; 502. slide plate; 503. mounting plate; 504. cylinder; 505. adjustment plate; 506. sealing plate; 507. cross plate; 508. screw. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1 An improved adjustable plastic bottle blow molding mold in this embodiment is used to adjust the blow molding mold to prepare plastic bottles of different lengths. In addition, it avoids the situation where long plastic strips appear on both sides of the produced plastic bottles.

[0026] Specifically, it includes a bottom plate 1, a base 2, a mold barrel 3, an injection tube 4 and an adjustment component 5; the mold barrel 3 is installed on the bottom plate 1 through the base 2, the injection tube 4 is sleeved on the feed end of the mold barrel 3 and is connected with the mold barrel 3, and the adjustment component 5 is arranged on the bottom plate 1; an injection cavity is opened in the mold barrel 3 along the horizontal direction.

[0027] In actual settings, the size of the cavity inside the mold tube 3 is adjusted by adjusting the fit between the components inside the assembly 5, thereby facilitating the preparation of plastic bottles of different lengths. In addition, by integrally forming the mold tube 3, the appearance of docking gaps on the inner wall of the mold can be effectively avoided, and the appearance of long plastic strips on the outside of the plastic bottle can be effectively avoided.

[0028] See also Figure 2-3 In order to adjust the length of the cavity inside the mold barrel, the adjustment component 5 in this embodiment includes at least two support plates 501, and at least two support plates 501 are vertically installed on the bottom plate 1. A slide plate 502 is slidably connected between the opposite sides of at least two support plates 501, and a mounting plate 503 is mounted on the slide plate 502. A cylinder 504 is arranged on the mounting plate 503, and the output end of the cylinder 504 is transmission-connected to an adjustment plate 505, and the adjustment plate 505 is slidably connected to the inside of the mold barrel 3.

[0029] During actual use, the output end of the cylinder 504 is extended and retracted to drive the adjustment plate 505 connected thereto to extend into the interior of the mold barrel 3. The deeper the adjustment plate 505 extends into the mold barrel 3, the shorter the length of the molded plastic bottle. At the same time, by electrically connecting the cylinder 504 to the control equipment in the outside world, the length of the extension of the output end of the cylinder 504 can be effectively and accurately adjusted, thereby adjusting the length of the molded plastic bottle.

[0030] In addition, the shape of the mold barrel 3 is a hollow cylinder with a missing side close to the cylinder 504. The outer diameter of the adjustment plate 505 is adapted to the inner diameter of the mold barrel 3. A through hole is opened inside the mounting plate 503 for the output end of the cylinder 504 to move left and right.

[0031] In actual setting, the outer diameter of the adjustment plate 505 is matched with the inner diameter of the mold barrel 3, which can better achieve the sealing effect. At the same time, a sealing plate 506 is installed on the side of the adjustment plate 505 close to the cylinder 504, and the sealing plate 506 is sleeved on the output end of the cylinder 504.

[0032] It should be noted that, in order to ensure the sealing and heat-resistant effect of the sealing plate 506, the sealing plate 506 is preferably a polytetrafluoroethylene pad in this embodiment, and the thickness of the sealing plate 506 is not less than one centimeter.

[0033] Furthermore, in order to facilitate the removal of the plastic bottle formed inside the mold barrel 3, the adjustment component 5 in this embodiment also includes a lifting structure, which includes a horizontal plate 507 and a screw 508; the horizontal plate 507 is assembled above at least two support plates 501, the screw 508 is threadedly connected to the inside of the horizontal plate 507, and the bottom end of the screw 508 is rotatably connected to the slide plate 502 through a bearing.

[0034] In actual use, after the plastic bottle inside the mold barrel 3 is formed, the output end of the control cylinder 504 is retracted, and at the same time, the adjustment plate 505 and the sealing plate 506 are moved out from the inside of the mold barrel 3, and then the rotating screw 508 drives the slide plate 502 connected thereto to move upward, so that the adjustment plate 505 and the sealing plate 506 move to the inside of the mold barrel 3, and the plastic bottle formed inside the mold barrel 3 can be taken out.

[0035] Furthermore, in order to ensure the stability of the slide plate 502 when sliding up and down, slide grooves are provided on the opposite sides of at least two support plates 501, and sliding blocks adapted to the slide grooves are provided on the left and right sides of the slide plate 502.

[0036] In summary, the improved adjustable plastic bottle blow molding mold drives the adjustment plate 505 connected thereto to extend to the interior of the mold barrel 3 through the telescopic output end of the cylinder 504. The deeper the adjustment plate 505 extends into the interior of the mold barrel 3, the shorter the length of the molded plastic bottle. At the same time, by electrically connecting the cylinder 504 to the control device in the outside world, the length of the extension of the output end of the cylinder 504 can be effectively and accurately adjusted, thereby adjusting the length of the molded plastic bottle. By integrally forming the mold barrel 3, the appearance of a docking gap on the inner wall of the mold can be effectively avoided, and the appearance of long plastic strips on the outer side of the plastic bottle can be effectively avoided. By controlling the output end of the cylinder 504 to retract, the adjustment plate 505 and the sealing plate 506 are moved out of the interior of the mold barrel 3, and then the rotating screw 508 drives the slide plate 502 connected thereto to move upward, so that the adjustment plate 505 and the sealing plate 506 move to the interior of the mold barrel 3, and the plastic bottle formed in the mold barrel 3 can be taken out.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An improved adjustable plastic bottle blow molding mold, characterized in that: It comprises a bottom plate (1), a base (2), a mold cylinder (3), an injection pipe (4) and an adjustment component (5); The mold cylinder (3) is mounted on the bottom plate (1) via a base (2); the injection pipe (4) is sleeved on the feed end of the mold cylinder (3) and is in communication with the mold cylinder (3); and the adjustment component (5) is arranged on the bottom plate (1); The mold cylinder (3) has an injection cavity formed in the interior thereof in a transverse direction; The adjustment assembly (5) comprises at least two support plates (501), at least two of the support plates (501) are vertically mounted on the bottom plate (1), a slide plate (502) is slidably connected between opposite sides of at least two of the support plates (501), a mounting plate (503) is mounted on the slide plate (502), a cylinder (504) is arranged on the mounting plate (503), an output end of the cylinder (504) is transmission-connected to an adjustment plate (505), and the adjustment plate (505) is slidably connected to the inside of the mold cylinder (3).

2. An improved adjustable plastic bottle blow molding mold according to claim 1, characterized in that: The mold cylinder (3) is in the shape of a cylinder with a hollow interior and a missing side close to the cylinder (504).

3. The improved adjustable plastic bottle blow molding mold according to claim 1, characterized in that: The outer diameter of the adjustment plate (505) is matched with the inner diameter of the mold cylinder (3).

4. The improved adjustable plastic bottle blow molding mold according to claim 1, characterized in that: A sealing plate (506) is installed on one side of the adjustment plate (505) close to the cylinder (504), and the sealing plate (506) is sleeved on the output end of the cylinder (504).

5. The improved adjustable plastic bottle blow molding mold according to claim 4, characterized in that: The sealing plate (506) is a polytetrafluoroethylene pad, and the thickness of the sealing plate (506) is not less than one centimeter.

6. The improved adjustable plastic bottle blow molding mold according to claim 1, characterized in that: A through hole is provided inside the mounting plate (503) for the output end of the air cylinder (504) to move left and right.

7. The improved adjustable plastic bottle blow molding mold according to claim 1, characterized in that: The adjustment assembly (5) further comprises a lifting structure, wherein the lifting structure comprises a horizontal plate (507) and a screw rod (508); The transverse plate (507) is mounted above at least two support plates (501), the screw rod (508) is threadedly connected to the inside of the transverse plate (507), and the bottom end of the screw rod (508) is rotatably connected to the slide plate (502) via a bearing.

8. The improved adjustable plastic bottle blow molding mold according to claim 7, characterized in that: At least one opposite side of the two support plates (501) is provided with a slide groove, and the left and right sides of the slide plate (502) are provided with sliding blocks adapted to the slide groove.

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