Split type large-size plastic bottle blank injection molding device

Abstract

The utility model provides a split type large-size plastic bottle blank injection molding device, and relates to the technical field of plastic bottle blank injection molding, the split type large-size plastic bottle blank injection molding device comprises a base and a rear mold groove, the upper end of the base is provided with a lower base plate, and the front side and the rear side of the lower base plate are respectively and fixedly provided with a front cushion block and a rear cushion block; outer fixing sleeves are fixed to the middles of the upper end faces of the rear cushion block and the first telescopic air cylinders correspondingly, second telescopic air cylinders are arranged in the outer fixing sleeves in a sleeved mode, the front ends of the second telescopic air cylinders on the front side and the rear side are fixed to the front mold groove and the rear mold groove correspondingly, and the first telescopic air cylinders are fixed to the left portions and the right portions of the upper end faces of the front cushion block and the rear cushion block correspondingly; and the upper end of the first telescopic cylinder is fixed below the top seat. The split type mold groove is safe and stable in movement and accurate and tight in relative press fit, the injection molding runner conveys injection molding molten raw materials smoothly and rapidly, the quality and efficiency of injection molding of plastic bottle blanks can be guaranteed, and the injection molding device is safer, more stable and more practical.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of plastic bottle blank injection moulding, and particularly relates to a split type large-size plastic bottle blank injection moulding device. BACKGROUND

[0002] Plastic bottles are the most widely used beverage packaging today, and various beverages and drinking water are mostly stored in plastic bottle blanks. Plastic bottle blanks are generally produced in large quantities by using injection moulds. The injection mould for plastic bottle blanks has many processes and a long production cycle, and the economic benefit is general.

[0003] In the specification of the prior art (publication number CN217916437U) a split type large-size plastic bottle blank injection moulding device, it is mentioned that "the workbench is rotationally connected with a longitudinal screw, two auxiliary sliding seats are fixedly installed on the bottom inner wall of the workbench, a cylinder is threadedly connected with the longitudinal screw, a dragging block is fixedly connected with the cylinder, two connecting rods are movably connected with the dragging block, a demoulding mechanism is arranged in the workbench, a hydraulic cylinder is fixedly arranged in the workbench, a hydraulic rod is arranged on the hydraulic cylinder, one end of the hydraulic rod is fixedly connected with a lifting plate, and a sealing cover is arranged at the bottom of the lifting plate", but the injection moulding device in the prior art is not smooth and stable in conveying the injection-melted raw material, and the split cylinder mould is not stable, which may affect the quality of the injection moulding and is not smooth and stable in practical use. UTILITY MODEL CONTENTS

[0004] In order to overcome the defects of the prior art, the present application provides a split type large-size plastic bottle blank injection moulding device to solve the problem that the injection moulding device in the prior art is not smooth and stable in conveying the injection-melted raw material, and the split cylinder mould is not stable, which may affect the quality of the injection moulding and is not smooth and stable in practical use.

[0005] To achieve the above-mentioned purpose, a split type large-size plastic bottle blank injection moulding device is provided, which comprises a base and a rear mould groove. The upper end of the base is provided with a lower pad, and the front and rear sides of the lower pad are respectively fixed with a front pad block and a rear pad block. The upper end surface of the rear pad block and the upper end surface of the first telescopic cylinder are both fixed with an outer fixing sleeve, and the outer fixing sleeve is sleeved with a second telescopic cylinder. The front ends of the second telescopic cylinders on the front and rear sides are respectively fixed on the front mould groove and the rear mould groove. The upper end surfaces of the front pad block and the rear pad block are both fixed with a first telescopic cylinder, and the upper end of the first telescopic cylinder is fixed on the top base.

[0006] Further, the upper end surfaces of the left and right parts of the lower pad are both provided with Y-axis linear sliding rails, and the lower end surface of the rear mould groove is provided with a sliding block. The sliding block is slidingly connected in the Y-axis linear sliding rail, and the left and right side surfaces of the rear mould groove are both fixed with a side fixing plate.

[0007] Further, the inner side of the rear mold groove is provided with a plurality of upper plastic bottle mold cavities, and the lower end of the upper plastic bottle mold cavity is provided with a lower arc-shaped notch, and the upper plastic bottle mold cavity and the lower arc-shaped notch adopt a semicircular arc-shaped mold cavity structure, and the upper end of the upper plastic bottle mold cavity is connected with a plurality of injection ports.

[0008] Further, the front mold groove and the rear mold groove are symmetrical about the center line of the base, the structure of the front mold groove and the rear mold groove is the same, and the front mold groove and the rear mold groove are arranged in cooperation.

[0009] Further, the upper end surface of the Y-axis linear slide rail is provided with a plurality of support columns in the middle, and the upper end of the support column is provided with a middle mold body, and the support column and the middle mold body adopt a solid cylindrical structure.

[0010] Further, the outer ring surface of the middle mold body is injection molded with an injection molded part between the upper plastic bottle mold cavities provided in the inner side of the rear mold groove and the front mold groove, and the rear mold groove, the front mold groove and the middle mold body are connected in a split manner, and the injection molded part is a detachable structure.

[0011] Further, the upper center of the top base is provided with an injection port, the lower side of the top base is provided with an upper pad, the top base is provided with an upper runner, the lower side of the upper pad is provided with a partition plate, the partition plate is provided with a lower runner, and the injection port, the upper runner, the lower runner and the injection port are connected in sequence from top to bottom.

[0012] The beneficial effects of the present application are as follows:

[0013] 1. The second telescopic air cylinder on the front and rear sides is elongated to push the front mold groove and the rear mold groove to be pressed together, surrounding the middle mold body and the support column, and the sliding block connection of the bottom surface of the rear mold groove and the front mold groove is on the Y-axis linear slide rail, so that the pressing of the rear mold groove and the front mold groove is neat, stable, accurate, and helps to ensure the quality of the plastic bottle blank injection molding.

[0014] 2. The middle mold body and the support column in the present application can be placed in the upper plastic bottle mold cavity provided between the rear mold groove and the front mold groove, so that the rear mold groove, the front mold groove and the middle mold body form a three-component split mold groove structure for plastic bottle embryo injection molding, which is convenient, accurate, stable and reliable.

[0015] 3. The top base in the present application is arranged to move up and down through the telescopic movement of the first telescopic air cylinder, so as to drive the upper pad and the partition plate to descend to the upper end surface of the rear mold groove and the front mold groove, and the injection port, the upper runner and the lower runner are used to input injection melt raw materials into the injection port, and the upper runner is thick and the lower runner is thin, and the melt raw materials are dispersed from the middle to the two sides, so that the conveying is more stable and smooth. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1A cross section schematic view of the embodiment of the utility model,

[0017] Figure 2 A front mould groove and a rear mould groove of the embodiment of the utility model are pressed together and the schematic view is viewed from below,

[0018] Figure 3 A front view schematic view of the structure on the base of the embodiment of the utility model,

[0019] Figure 4 A rear mould groove effect schematic view of the embodiment of the utility model,

[0020] Figure 5 A front view schematic view of the rear mould groove of the embodiment of the utility model.

[0021] In the drawing: 1, base; 10, lower backing plate; 11, Y-axis linear slide rail; 12, rear backing block; 13, first telescopic cylinder; 14, front backing block; 15, outer fixing sleeve; 16, second telescopic cylinder; 17, support column; 18, middle mould body; 2, rear mould groove; 20, side fixing plate; 21, injection inlet; 22, upper plastic bottle mould cavity; 23, lower arc-shaped notch; 24, sliding block; 3, front mould groove; 4, injection moulding piece; 5, top base; 50, injection port; 51, upper backing block; 52, upper runner; 53, partition plate; 54, lower runner. DETAILED DESCRIPTION

[0022] In order to make the technical problems, technical schemes and beneficial effects of the utility model clearer and more apparent, the utility model is further described in detail below in combination with the drawings and embodiments. The specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model. Specific details such as specific system structures and technologies are proposed so that the utility model embodiments can be understood more thoroughly. The described embodiments are part of the embodiments of the disclosure, not all the embodiments. However, those skilled in the art should understand that the utility model can also be implemented in other embodiments without these specific details. Based on the embodiments in the disclosure, all other embodiments obtained by those skilled in the art without making creative efforts are within the protection scope of the disclosure.

[0023] The specific embodiments of the utility model are described in detail below in combination with the drawings.

[0024] Figure 1 A cross section schematic view of the embodiment of the utility model, Figure 2 A front mould groove and a rear mould groove of the embodiment of the utility model are pressed together and the schematic view is viewed from below, Figure 3 A front view schematic view of the structure on the base of the embodiment of the utility model, Figure 4 A rear mould groove effect schematic view of the embodiment of the utility model and Figure 5It is a front view schematic diagram of the rear mold groove of the embodiment of the utility model.

[0025] Referring to Figures 1 to 5 As shown in the figure, the utility model provides a split type large size plastic bottle blank injection molding device, including base 1 and rear mold groove 2, the upper end of base 1 is provided with lower bolster plate 10, and the front and rear sides of lower bolster plate 10 are fixed with front bolster block 14 and rear bolster block 12 respectively, the middle part of the upper end face of rear bolster block 12 and first telescopic cylinder 13 is fixed with outer fixing sleeve 15, and second telescopic cylinder 16 is sleeved in outer fixing sleeve 15, and the front ends of second telescopic cylinder 16 on the front and rear sides are fixed on front mold groove 3 and rear mold groove 2 respectively, the upper end face of front bolster block 14 and rear bolster block 12 is fixed with first telescopic cylinder 13 on the left and right two parts, and the upper end of first telescopic cylinder 13 is fixed under top seat 5.

[0026] In the embodiment, the upper end face of lower bolster plate 10 is provided with Y-axis linear slide rail 11 on the left and right two parts, the lower end face of rear mold groove 2 is provided with sliding block 24, sliding block 24 is slidably connected in Y-axis linear slide rail 11, and the left and right two side faces of rear mold groove 2 are fixed with side fixed plate 20; the inner side face of rear mold groove 2 is provided with a plurality of upper plastic bottle mold cavities 22, the lower end of upper plastic bottle mold cavity 22 is provided with lower arc notch 23, and upper plastic bottle mold cavity 22 and lower arc notch 23 adopt semicircular arc cavity structure, and a plurality of injection ports 21 are connected to the upper end of upper plastic bottle mold cavity 22; front mold groove 3 and rear mold groove 2 are front and rear symmetrical about the center line of base 1, the structure of front mold groove 3 and rear mold groove 2 is same, and front mold groove 3 and rear mold groove 2 are matched and arranged.

[0027] As a preferred implementation, the utility model is pushed to press together by the elongation of second telescopic cylinder 16 on the front and rear sides, surrounds in middle mold body 18, support column 17, and the sliding block connection of the bottom face of rear mold groove 2 and front mold groove 3 is on Y-axis linear slide rail 11, so that the pressing of rear mold groove 2 and front mold groove 3 is neat, stable, accurate, which helps to guarantee the quality of plastic bottle blank injection molding.

[0028] In the embodiment, the middle part of the upper end face of Y-axis linear slide rail 11 is provided with a plurality of support columns 17, the upper end of support column 17 is provided with middle mold body 18, and support column 17 and middle mold body 18 adopt solid cylinder structure; injection molding part 4 is injection molded between the outer ring face of middle mold body 18 and the upper plastic bottle mold cavity opened in the inner side face of rear mold groove 2 and front mold groove 3, rear mold groove 2, front mold groove 3 and middle mold body 18 are split and connected, and injection molding part 4 is detachable structure.

[0029] As a preferred embodiment, the middle mold body 18 and the supporting column 17 can be sleeved in the upper plastic bottle mold cavity formed between the rear mold groove 2 and the front mold groove 3, so that the rear mold groove 2, the front mold groove 3 and the middle mold body 18 form a three-component mold groove structure for injection molding of a plastic bottle embryo, which is convenient and accurate, and injection is neat, stable and reliable.

[0030] In the embodiment, the upper center of the top base 5 is provided with an injection port 50, the lower side of the top base 5 is provided with an upper pad 51, the top base 5 is provided with an upper runner 52, the lower side of the upper pad 51 is provided with a partition plate 53, the partition plate 53 is provided with a lower runner 54, and the injection port 50, the upper runner 52, the lower runner 54 and the injection port 21 are sequentially connected from top to bottom.

[0031] As a preferred embodiment, the top base 5 is provided to facilitate the up-down movement of the first telescopic cylinder 13, so as to drive the upper pad 51 and the partition plate 53 to descend to the upper end surface of the rear mold groove 2 and the front mold groove 3, facilitate the input of injection melt raw materials into the injection port 21 through the injection port 50, the upper runner 52 and the lower runner 54, and the flow is coarse at the top and fine at the bottom, and the flow is dispersed from the middle to both sides, and the conveying is more stable and smooth.

[0032] The injection molding mold of the present application can effectively solve the problem that the injection melt raw material conveying is not smooth and stable, and the split cylinder mold is not stable, which may affect the quality of injection molding, and is not smooth, stable and practical. The split mold groove in the present application is safe and stable, the relative compression is accurate and close, the injection runner conveying injection melt raw material is smooth and fast, which helps to ensure the quality and efficiency of the plastic bottle blank injection molding, and is more safe, stable and practical.

[0033] The above embodiments are used to explain and illustrate the present application, but not to limit the present application. Any modification and change made to the present application within the spirit and scope of the present application and the application protection right claim should be included in the protection scope of the present application.

Claims

1. A split-type large-size plastic preform injection molding device, characterized in that: The base includes a base (1) and a rear mold groove (2). The upper end of the base (1) is provided with a lower pad (10), and the front and rear sides of the lower pad (10) are respectively fixed with a front pad (14) and a rear pad (12). The upper end face of the rear pad (12) and the first telescopic cylinder (13) are both fixed with an outer fixing sleeve (15), and the outer fixing sleeve (15) is fitted with a second telescopic cylinder (16). The front ends of the second telescopic cylinders (16) on the front and rear sides are respectively fixed on the front mold groove (3) and the rear mold groove (2). The upper end face of the front pad (14) and the rear pad (12) are both fixed with the first telescopic cylinder (13), and the upper end of the first telescopic cylinder (13) is fixed under the top seat (5).

2. The split-type large-size plastic preform injection molding device according to claim 1, characterized in that, The upper end face of the lower pad (10) is provided with Y-axis linear slide rails (11) on both the left and right sides, and the lower end face of the rear mold groove (2) is provided with a slider (24). The slider (24) is slidably connected in the Y-axis linear slide rail (11), and the left and right sides of the rear mold groove (2) are fixed with side fixing plates (20).

3. The split-type large-size plastic preform injection molding device according to claim 1, characterized in that, The inner side of the rear mold groove (2) has multiple sets of upper plastic bottle mold cavities (22), and the lower end of the upper plastic bottle mold cavity (22) is provided with a lower arc-shaped notch (23). Both the upper plastic bottle mold cavity (22) and the lower arc-shaped notch (23) adopt a semi-circular arc mold cavity structure, and the upper end of the upper plastic bottle mold cavity (22) is connected to multiple sets of injection ports (21).

4. The split-type large-size plastic preform injection molding device according to claim 1, characterized in that, The front mold groove (3) and the rear mold groove (2) are symmetrical about the center line of the base (1), and the front mold groove (3) and the rear mold groove (2) have the same structure and are matched.

5. The split-type large-size plastic preform injection molding device according to claim 2, characterized in that, The upper end face of the Y-axis linear slide rail (11) is provided with multiple sets of support columns (17), and the upper end of the support column (17) is provided with a middle mold body (18). Both the support column (17) and the middle mold body (18) adopt a solid cylindrical structure.

6. The split-type large-size plastic preform injection molding device according to claim 5, characterized in that, An injection molded part (4) is injected between the outer ring surface of the middle mold body (18) and the upper plastic bottle mold cavity opened on the inner side of the rear mold groove (2) and the front mold groove (3). The rear mold groove (2), the front mold groove (3) and the middle mold body (18) are connected separately, and the injection molded part (4) is a detachable structure.

7. The split-type large-size plastic preform injection molding device according to claim 1, characterized in that, The top seat (5) has an injection port (50) at its upper center and an upper pad (51) on its lower side. An upper flow channel (52) is provided inside the top seat (5), and a partition (53) is provided on the lower side of the upper pad (51). A lower flow channel (54) is provided inside the partition (53), and the injection port (50), upper flow channel (52), lower flow channel (54) and injection port (21) are connected from top to bottom.

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