Blow molding opening structure of mold for injection molding

Abstract

The utility model relates to the technical field of blow molding, and discloses an injection molding mold blow molding opening structure which comprises an operation table, a first mold and a second mold are slidably mounted on a bottom plate of the operation table, and a plurality of positioning rods which are distributed up and down at equal intervals are fixedly mounted on the two sides of the inner side of the first mold; a plurality of positioning holes which are distributed at equal intervals up and down are formed in the two sides of the inner side of the second mold, a blow molding opening assembly is installed at the top end of the first mold and the top end of the second mold, the blow molding opening assembly comprises two blow molding opening bodies which are distributed in a mirror image mode, sealing gaskets are fixedly installed in the two blow molding opening bodies, and the two sealing gaskets can be attached in a sealed mode; according to the blow molding device, in the process that the first mold and the second mold after injection molding move to the position under the blow molding pipe, the cover plate can be used for shielding the blow molding opening body, and external dust and other impurities are prevented from entering the molds easily through the blow molding opening body to affect the product quality.

Description

Technical Field

[0001] This application relates to the field of blow molding technology, for example, to a blow molding port structure for an injection mold. Background Art

[0002] In the integrated mold design of injection molding and blow molding, the blow molding port structure is a key part, which allows blow molding after the injection molding process to manufacture hollow plastic parts.

[0003] In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:

[0004] The blow molding port on the existing integrated injection molding and blow molding mold is not blocked by a cover plate. During the process of moving the mold under the blow molding pipe after injection molding, external dust and other impurities easily enter the mold through the blow molding port, affecting the product quality. Summary of the Utility Model

[0005] To have a basic understanding of some aspects of the disclosed embodiments, a simple summary is given below. This summary is not a general review, nor is it intended to identify key / important elements or delineate the protection scope of these embodiments, but rather serves as a preface to the subsequent detailed description.

[0006] The embodiments of the present disclosure provide a blow molding port structure for an injection mold to solve the problem that the blow molding port on the existing integrated injection molding and blow molding mold is not blocked by a cover plate, and external dust and other impurities easily enter the mold through the blow molding port during the process of moving the mold under the blow molding pipe after injection molding, affecting the product quality.

[0007] In some embodiments, the blow molding port structure for an injection mold includes an operation table. A first mold and a second mold are slidably installed on the bottom plate of the operation table, and the second mold can slide and seal with the first mold. On both sides of the inner side of the first mold, a plurality of positioning rods are fixedly installed at equal distances up and down. On both sides of the inner side of the second mold, a plurality of positioning holes are opened at equal distances up and down, and the positioning rods can be inserted into the corresponding positioning holes. A blow molding port assembly is installed at the top of the first mold and the second mold. The blow molding port assembly includes two blow molding port bodies distributed mirror-symmetrically, and the two blow molding port bodies are respectively fixedly installed at the top of the first mold and the second mold, and the two blow molding port bodies can seal and fit. Sealing gaskets are fixedly installed in both blow molding port bodies, and the two sealing gaskets can seal and fit. A cover plate is rotatably installed on the blow molding port body at the top of the first mold.

[0008] The blow molding port structure for an injection mold provided by the embodiments of the present disclosure can achieve the following technical effects:

[0009] 1. In the present utility model, during the process of moving the first mold and the second mold after injection molding to directly below the blow molding tube, the cover plate can be utilized to shield the blow molding port body, preventing external dust and other impurities from easily entering the mold through the blow molding port body and affecting the product quality.

[0010] 2. In the present utility model, first, the first mold and the second mold are hermetically fitted. Then, the first mold and the second mold are slid to directly below the injection molding tube. Next, the injection molding raw material is injected into the first mold and the second mold through the blow molding port body by the injection molding tube. Then, the first mold and the second mold after injection molding are moved to directly below the blow molding tube, and the raw material in the first mold and the second mold is blow molded through the blow molding port body by the blow molding tube, thereby realizing the integrated processing of injection molding and blow molding and greatly improving the processing efficiency.

[0011] The above general description and the following description are only exemplary and explanatory and are not used to limit this application. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] One or more embodiments are exemplarily illustrated by corresponding drawings. These exemplary illustrations and the drawings do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements. The drawings do not constitute a proportional limitation, and among them:

[0013] Figure 1 is the overall structural schematic diagram provided by an embodiment of the present disclosure;

[0014] Figure 2 is provided by an embodiment of the present disclosure Figure 1 The enlarged schematic diagram of the structure at A in;

[0015] Figure 3 is the structural schematic diagram of the blow molding port assembly provided by an embodiment of the present disclosure;

[0016] Figure 4 is the sectional structural schematic diagram of the operating table provided by an embodiment of the present disclosure;

[0017] Figure 5 is the split structural schematic diagram of the first mold and the second mold provided by an embodiment of the present disclosure.

[0018] Reference Numerals:

[0019] 1. Operating table; 2. First chute; 3. Second chute; 4. First mold; 41. Positioning rod; 5. Second mold; 51. Positioning hole; 6. Sliding plate; 7. First cylinder; 8. Blow molding port assembly; 81. Blow molding port body; 82. Sealing gasket; 83. Cover plate; 9. Blow molding pipe; 10. Second cylinder; 11. Injection molding pipe; 12. Third cylinder; 13. First toothed plate; 14. Motor; 15. Drive shaft; 16. Gear; 17. Worm gear; 18. Worm; 19. Second toothed plate; 20. Threaded rod. Detailed implementation manners

[0020] In order to more comprehensively understand the features and technical content of the embodiments of the present disclosure, the implementation of the embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are only for reference and illustration purposes and are not used to limit the embodiments of the present disclosure. In the following technical descriptions, for the convenience of explanation, sufficient understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, well-known structures and devices can be shown in a simplified manner.

[0021] In the embodiments of the present disclosure, the terms "first", "second", etc. in the specification, claims and the above-mentioned accompanying drawings are used to distinguish similar objects and do not necessarily describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so as to implement the embodiments of the present disclosure described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion.

[0022] In the embodiments of the present disclosure, the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", etc. is based on the orientation or positional relationship shown in the accompanying drawings. These terms are mainly used to better describe the embodiments of the present disclosure and their embodiments, and are not used to limit that the indicated devices, elements or components must have a specific orientation or be constructed and operated in a specific orientation. And, in addition to being able to represent an orientation or positional relationship, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0023] In addition, the terms "arranged", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or there can be internal communication between two devices, components, or parts. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0024] Unless otherwise specified, the term "plurality" means two or more.

[0025] In the embodiments of the present disclosure, the character " / " indicates that the objects before and after are in an "or" relationship. For example, A / B means: A or B.

[0026] The term "and / or" is an associative relationship describing an object, indicating that there can be three relationships. For example, A and / or B means: A or B, or, A and B.

[0027] It should be noted that, without conflict, the embodiments in the embodiments of the present disclosure and the features in the embodiments can be combined with each other.

[0028] Combined with Figures 1-5As shown in the figure, an injection mold blow molding port structure provided by an embodiment of the present disclosure includes an operation table 1. A first mold 4 and a second mold 5 are slidably installed on the bottom plate of the operation table 1, and the second mold 5 can slide and be hermetically attached to the first mold 4. On both sides of the inner side of the first mold 4, a plurality of positioning rods 41 are fixedly installed at equal intervals up and down. On both sides of the inner side of the second mold 5, a plurality of positioning holes 51 are opened at equal intervals up and down, and the positioning rods 41 can be inserted into the corresponding positioning holes 51. A blow molding port assembly 8 is installed at the top of the first mold 4 and the second mold 5. The blow molding port assembly 8 includes two blow molding port bodies 81 distributed in a mirror image. The two blow molding port bodies 81 are respectively fixedly installed at the top of the first mold 4 and the second mold 5, and the two blow molding port bodies 81 can be hermetically attached. Sealing gaskets 82 are fixedly installed in both of the two blow molding port bodies 81, and the two sealing gaskets 82 can be hermetically attached. A cover plate 83 is rotatably installed on the blow molding port body 81 at the top of the first mold 4. First, the first mold 4 and the second mold 5 are hermetically attached. At this time, the two blow molding port bodies 81 are hermetically attached. Then, the first mold 4 and the second mold 5 are slid to directly below the injection pipe 11. Then, the injection raw material is injected into the first mold 4 and the second mold 5 through the blow molding port body 81 by using the injection pipe 11. Then, the first mold 4 and the second mold 5 after injection are moved to directly below the blow molding pipe 9. During this moving process, the cover plate 83 can be used to block the blow molding port body 81 to prevent external dust and other impurities from easily entering the mold through the blow molding port body 81 and affecting the product quality. The raw materials in the first mold 4 and the second mold 5 are blow molded by using the blow molding pipe 9 through the blow molding port body 81.

[0029] Optionally, a worm gear 17 is fixedly installed on the upper surface of one side of the cover plate 83. A worm 18 is rotatably installed on one side of the blow molding port body 81 at the top of the first mold 4, and the worm 18 meshes with the worm gear 17. One end of the worm 18 is fixedly installed with a drive shaft 15. One end of the drive shaft 15 is fixedly installed with a gear 16. A first toothed plate 13 and a second toothed plate 19 are respectively fixedly installed on the back plate of the operation table 1 near the injection pipe 11 and the blow molding pipe 9. The first toothed plate 13 and the second toothed plate 19 are arranged in a mirror image, and the gear 16 can mesh with the first toothed plate 13 and the second toothed plate 19.

[0030] In this way, during the process of moving the first mold 4 and the second mold 5 after injection to directly below the blow molding pipe 9, the gear 16 first meshes with the first toothed plate 13 and rotates. The gear 16 drives the worm 18 to rotate through the drive shaft 15. The worm 18 drives the worm gear 17 to rotate. The worm gear 17 drives the cover plate 83 to rotate and close. When the mold approaches the blow molding pipe 9, the gear 16 meshes with the second toothed plate 19 and rotates, thereby driving the cover plate 83 to rotate and open.

[0031] Optionally, a first chute 2 is formed in the bottom plate of the operation table 1, and the first mold 4 and the second mold 5 can slide in the first chute 2. A second chute 3 is formed in the bottom plate of the operation table 1, and the second chute 3 is perpendicular to the first chute 2, and the second mold 5 can slide in the second chute 3. A threaded rod 20 is rotatably installed in the first chute 2, and the threaded rod 20 is threadedly inserted into the bottom end of the first mold 4. One end of the bottom plate of the operation table 1 is fixedly installed with a motor 14, and the output end of the motor 14 is fixedly connected to one end of the threaded rod 20. A sliding plate 6 is slidably installed on the bottom plate of the operation table 1. One side of the sliding plate 6 is fixedly installed with a first cylinder 7, and the output end of the first cylinder 7 is fixedly connected to one side of the second mold 5. Two second cylinders 10 and a third cylinder 12 are linearly distributed and fixedly installed on the top plate of the operation table 1. The output ends of the second cylinder 10 and the third cylinder 12 are respectively fixedly installed with a blow molding pipe 9 and an injection molding pipe 11.

[0032] In this way, first, the first mold 4 and the second mold 5 are hermetically fitted. At this time, the two blow molding port bodies 81 are hermetically fitted. Then, the first mold 4 and the second mold 5 are slid along the first chute 2 to the directly below the injection molding pipe 11. Then, the third cylinder 12 is used to insert the injection molding pipe 11 into the blow molding port body 81, and the injection molding raw material is injected into the first mold 4 and the second mold 5. Then, the injection molding pipe 11 is lifted, and the motor 14 is used to drive the threaded rod 20 to rotate. The threaded rod 20 drives the injection-molded first mold 4 and second mold 5 to move along the first chute 2 to the directly below the blow molding pipe 9. Then, the second cylinder 10 is used to hermetically insert the blow molding pipe 9 into the blow molding port body 81, and the raw material in the first mold 4 and the second mold 5 is blow molded. Then, the blow molding pipe 9 is lifted. Finally, the first cylinder 7 is used to drive the second mold 5 to slide along the second chute 3 to separate from the first mold 4 for demolding.

[0033] Working principle: First, the first mold 4 is hermetically fitted with the second mold 5. At this time, the two blow molding port bodies 81 are hermetically fitted. Then, the first mold 4 and the second mold 5 are slid along the first chute 2 to directly below the injection pipe 11. Next, the injection pipe 11 is inserted into the blow molding port body 81 by using the third cylinder 12, and the injection raw material is injected into the first mold 4 and the second mold 5. Then, the injection pipe 11 is lifted. The motor 14 drives the threaded rod 20 to rotate, and the threaded rod 20 drives the injection-molded first mold 4 and second mold 5 to move along the first chute 2 to directly below the blow molding pipe 9. During the movement, the gear 16 first meshes with the first toothed plate 13 and rotates. The gear 16 drives the worm 18 to rotate through the drive shaft 15, the worm 18 drives the worm gear 17 to rotate, and the worm gear 17 drives the cover plate 83 to rotate and close, covering the blow molding port body 81 to prevent external dust and other impurities from easily entering the mold through the blow molding port body 81 and affecting the product quality. When the mold approaches the blow molding pipe 9, the gear 16 meshes with the second toothed plate 19 and rotates, thereby driving the cover plate 83 to rotate and open. Then, the blow molding pipe 9 is hermetically inserted into the blow molding port body 81 by using the second cylinder 10, the raw material in the first mold 4 and the second mold 5 is blow molded, and the blow molding pipe 9 is lifted. Finally, the first cylinder 7 drives the second mold 5 to slide along the second chute 3 to separate from the first mold 4 for demolding.

[0034] The above description and drawings fully illustrate the embodiments of the present disclosure so that those skilled in the art can practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless explicitly required, the individual components and functions are optional, and the order of operations may vary. Some parts and features of some embodiments may be included in or replace parts and features of other embodiments. The embodiments of the present disclosure are not limited to the structures already described and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A blow molding port structure for an injection mold, comprising an operating table (1), characterized in that: A first mold (4) and a second mold (5) are slidably mounted on the bottom plate of the operation table (1), and the second mold (5) can slide and be hermetically attached to the first mold (4). A plurality of positioning rods (41) are fixedly installed on both inner sides of the first mold (4) at equal intervals up and down. A plurality of positioning holes (51) are formed on both inner sides of the second mold (5) at equal intervals up and down, and the positioning rods (41) can be inserted into the corresponding positioning holes (51). A blow molding port assembly (8) is installed at the top ends of the first mold (4) and the second mold (5). The blow molding port assembly (8) includes two blow molding port bodies (81) distributed in a mirror image. The two blow molding port bodies (81) are respectively fixedly installed at the top ends of the first mold (4) and the second mold (5), and the two blow molding port bodies (81) can be hermetically attached. Sealing gaskets (82) are fixedly installed in both of the two blow molding port bodies (81), and the two sealing gaskets (82) can be hermetically attached. A cover plate (83) is rotatably installed on the blow molding port body (81) at the top end of the first mold (4).

2. The blow molding port structure of an injection mold according to claim 1, characterized in that, A worm gear (17) is fixedly installed on the upper surface of one side of the cover plate (83). A worm (18) is rotatably installed on one side of the blow molding port body (81) at the top end of the first mold (4), and the worm (18) meshes with the worm gear (17).

3. The blow molding port structure of an injection mold according to claim 2, characterized in that, One end of the worm (18) is fixedly installed with a drive shaft (15), and one end of the drive shaft (15) is fixedly installed with a gear (16).

4. The blow molding port structure of an injection mold according to claim 1, characterized in that, A first chute (2) is formed on the bottom plate of the operation table (1), and the first mold (4) and the second mold (5) can slide in the first chute (2).

5. The blow molding port structure of an injection mold according to claim 1, characterized in that, A second chute (3) is formed on the bottom plate of the operation table (1). The second chute (3) is perpendicular to the first chute (2), and the second mold (5) can slide in the second chute (3).

6. The blow molding port structure of an injection mold according to claim 4, characterized in that, A threaded rod (20) is rotatably installed in the first chute (2), and the threaded rod (20) is threadedly inserted into the bottom end of the first mold (4).

7. The blow molding port structure of an injection mold according to claim 1, characterized in that, A motor (14) is fixedly installed at one end of the bottom plate of the operation table (1), and the output end of the motor (14) is fixedly connected to one end of the threaded rod (20).

8. The blow molding port structure of an injection mold according to claim 1, characterized in that, A sliding plate (6) is slidably mounted on the bottom plate of the operation table (1). A first cylinder (7) is fixedly installed on one side of the sliding plate (6), and the output end of the first cylinder (7) is fixedly connected to one side of the second mold (5).

9. The blow molding port structure of an injection mold according to claim 1, characterized in that, Two second cylinders (10) and a third cylinder (12) are fixedly installed on the top plate of the operation table (1) in a straight line. The output ends of the second cylinder (10) and the third cylinder (12) are respectively fixedly installed with a blow molding pipe (9) and an injection molding pipe (11).

10. The blow molding port structure of an injection mold according to claim 1, characterized in that, A first toothed plate (13) and a second toothed plate (19) are respectively fixedly installed on the back plate of the operation table (1) near the injection molding pipe (11) and the blow molding pipe (9). The first toothed plate (13) and the second toothed plate (19) are arranged in a mirror image, and the gear (16) can mesh with the first toothed plate (13) and the second toothed plate (19).

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