A fixed mold closing structure and an independent double-sided mold closing device

Abstract

This utility model relates to the technical field of blow molding machine manufacturing, and mainly discloses a fixed mold closing structure and an independent double-sided mold closing device, including a mold body, which is fixed; wherein, a plurality of first half mold cavities and second half mold cavities are symmetrically opened on both sides of the mold body; the mold cavity axes of the first half mold cavities and the second half mold cavities are parallel to each other; a side mold, which is movably arranged on both sides of the mold body; wherein, a third half mold cavity is opened on the side mold and is correspondingly assembled with the first half mold cavity or the second half mold cavity; a bottom mold, which is correspondingly arranged on the top of the first half mold cavity and the second half mold cavity on both sides of the mold body. This utility model solves the problem of low production efficiency and inability to adapt to flexible and changeable production modes of existing mold closing mechanisms.

Description

Technical Field

[0001] This utility model relates to the technical field of blow molding machine manufacturing, and in particular to a fixed mold closing structure and an independent double-sided mold closing device. Background Technology

[0002] In the current field of blow molding machines, single-sided mold closing technology is widely used. Traditional blow molding machines rely mainly on a single mold opening and closing mechanism, commonly using a cylinder as a power source to drive the mold to move on one side to achieve the mold closing action. Some small blow molding machines use a cylinder to push one side of the mold towards the other fixed mold to complete the mold closing and then carry out the blow molding operation.

[0003] However, single-sided mold closing technology has significant drawbacks. When producing asymmetrical bottle shapes, the limitations of single-sided mold closing make it difficult to achieve through mold design alone, often requiring complex and costly auxiliary methods such as core-pulling mechanisms. This undoubtedly increases equipment complexity and maintenance costs. Simultaneously, the cylinders in single-sided mold closing bear substantial loads during operation, making them prone to wear and tear. This not only affects their service life but can also lead to leaks and other malfunctions, causing abnormal mold closing and severely impacting blown bottle quality and production efficiency. Furthermore, when facing demands for multi-variety, small-batch production requiring frequent mold changes, single-sided mold closing blown bottle machines typically require a complete shutdown, resulting in lengthy mold changeover times and making them unsuitable for flexible and changing production modes. Utility Model Content

[0004] Therefore, the technical problem to be solved by this utility model is that the existing mold closing mechanism has low production efficiency and cannot adapt to flexible and ever-changing production modes.

[0005] The above-mentioned technical problems are solved by the following technical solution: This utility model proposes a fixed mold closing structure, which includes a mold body, the mold body being fixed; wherein, a plurality of first half mold cavities and second half mold cavities are symmetrically opened on both sides of the mold body; the mold cavity axes of the first half mold cavity and the second half mold cavity are parallel to each other.

[0006] In a preferred embodiment of the fixed mold-closing structure of this utility model: the mold body includes a central seat and a mating seat and a mold cavity seat that are fixed to its opposite side walls in sequence.

[0007] In a preferred embodiment of the fixed mold-closing structure of this utility model: the plane on the side wall of the mold cavity seat away from the docking seat is the mold-closing plane, and the mold-closing planes of the two mold cavity seats are parallel to the center seat.

[0008] In a preferred embodiment of the fixed mold closing structure of this utility model: the first half mold cavity and the second half mold cavity have the same structure; the radial section of the cavity wall of the first half mold cavity includes a first end and a second end, and the straight line where the first end and the second end are located is located in the mold closing plane.

[0009] To solve the above problems, the present invention also proposes the following solution: an independent double-sided mold closing device, which further includes a side mold, the side mold being movably disposed on both sides of the mold body; wherein, the side mold is provided with a third half mold cavity corresponding to and fitting with the first half mold cavity or the second half mold cavity; and a bottom mold, the bottom mold being correspondingly disposed on the top of the first half mold cavity and the second half mold cavity on both sides of the mold body.

[0010] In a preferred embodiment of the independent double-sided mold closing device of this utility model: the side mold includes a side seat, a driving component and a moving module, and the side seats are symmetrically arranged on both sides of the mold body; the side seats on both sides are fixedly connected to the center seat by a connecting rod and a sliding rod.

[0011] In a preferred embodiment of the independent double-sided mold closing device of this utility model: at least two slide rods are symmetrically arranged, each slide rod can slide through the central seat, and both ends of the slide rod are fixedly inserted into the side seats.

[0012] In a preferred embodiment of the independent double-sided mold closing device of this utility model: the slide rod includes a first rod and a second rod arranged coaxially. The first rod and the second rod are respectively symmetrically fixedly inserted into both sides of the center seat. The other end of the first rod is fixedly connected to a side seat on one side, and the other end of the second rod is fixedly connected to a side seat on the other side.

[0013] In a preferred embodiment of the independent double-sided mold closing device of this utility model: the bottom mold is slidably inserted into the outside of the slide rod, and several sets of sealing elements are fixedly arranged at the bottom of the bottom mold. The sealing elements can be inserted into the top of the bottle cavity formed by splicing the first half mold cavity and the third half mold cavity or the second half mold cavity and the third half mold cavity.

[0014] In a preferred embodiment of the independent double-sided mold closing device of this utility model: the output shaft of the driving member faces the plane where the connecting rod is located, a hinge rod is rotatably connected to the output shaft of the driving member, and the other end of the hinge rod is rotatably connected to the moving module.

[0015] In a preferred embodiment of the independent double-sided mold closing device of this utility model: the driving component is fixedly connected to the side of the side seat near the center seat, and the output shaft of the driving component is fixedly connected to the moving module.

[0016] In a preferred embodiment of the independent double-sided mold closing device of this utility model: the third half mold cavity structure is the same as the first half mold cavity, and the third half mold cavity array is opened on the side of the moving module close to the mold body; the other side of the moving module is connected to the driving component, and at least two sets of sliders are symmetrically fixed on the side wall of the moving module on this side, and the sliders are slidably engaged with the slide rails fixedly connected to the worktable.

[0017] The beneficial effects of this utility model are as follows:

[0018] The two sets of opening and closing side molds are symmetrically distributed. The middle mold body is fixed, while the two sets of opening and closing moving side molds are distributed on both sides of the fixed mold body. The opening and closing actions are independent and do not interfere with each other. Each has its own independent power. They can move simultaneously or one side can move independently. When one side fails or needs to be replaced and the machine needs to be stopped, the other side will continue to work normally, which can ensure the production efficiency of the blow molding machine. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments of this utility model will be briefly described below. Obviously, the drawings described below only relate to some embodiments of this utility model and are not intended to limit the scope of this utility model. Wherein:

[0020] Figure 1 The overall structural diagram of the fixed mold clamping structure is shown;

[0021] Figure 2 A detailed structural diagram of the fixed mold clamping structure is shown;

[0022] Figure 3 An enlarged radial sectional view of the first half-cavity of the fixed mold clamping structure is shown;

[0023] Figure 4 A schematic diagram illustrating the differences between the fixed mold-closing structure and existing technologies is shown.

[0024] Figure 5 The overall structural diagram of the independent double-sided mold clamping device is shown;

[0025] Figure 6 A side mold structure diagram of an independent double-sided mold clamping device is shown;

[0026] Figure 7 The diagram shows the connection between the side mold and the mold body of the independent double-sided mold clamping device;

[0027] Figure 8 The following diagrams show the installation of different slide bar structures for the independent double-sided mold clamping device;

[0028] Figure 9 This diagram shows one possible installation method for the drive component of an independent double-sided mold clamping device;

[0029] Figure 10 A diagram showing another mounting method for the drive component of the independent double-sided mold clamping device is presented. Detailed Implementation

[0030] To enable those skilled in the art to better understand this utility model, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0031] The terminology used in this invention refers to those general terms currently widely used in the art in consideration of the functionality of this invention; however, these terms may vary according to the intent, precedent, or new technology of those skilled in the art. Furthermore, specific terms may be chosen by the applicant, and in such cases, their detailed meanings will be described in the detailed description of this invention. Therefore, the terminology used in this specification should not be construed as simple names, but rather based on the meaning of the terms and the overall description of this invention.

[0032] Reference Figures 1-4 This embodiment provides a fixed mold structure, which includes a mold body 100, which is fixed; wherein, the mold body 100 has several sets of first half mold cavities A1 and second half mold cavities A2 symmetrically opened on both sides.

[0033] The axes of the first half-cavity A1 and the second half-cavity A2 are parallel to each other.

[0034] Specifically, the mold body 100 includes a center seat 101 and a docking seat 102 and a mold cavity seat 103 that are fixed to its opposite side walls in sequence. The center seat 101 is a supporting and fixing component of the mold body 100 as a whole. The center seat 101 is fixed to the support platform of the frame by bolts. The docking seat 102 serves as an intermediate connecting support component, connecting the mold cavity seat 103 and the center seat 101.

[0035] The plane on the side wall of the mold cavity seat 103 away from the docking seat 102 is the mold closing plane M, and the mold closing plane M of both mold cavity seats 103 is parallel to the center seat 101.

[0036] Specifically, the mold closing plane M is a vertical plane, parallel to the center seat 101.

[0037] The first half-mold cavity A1 and the second half-mold cavity A2 have the same structure; the radial section of the cavity wall of the first half-mold cavity A1 includes the first end D1 and the second end D2, and the straight line X where the first end D1 and the second end D2 are located is located in the mold closing plane M.

[0038] Furthermore, in this embodiment, the first half-mold cavity A1 and the radial section of the first half-mold cavity A1 are preferably semi-circular, and the first end D1 and the second end D2 are the two ends of the semi-circular shape.

[0039] During use, if a bottle body is to be produced, there are also matching half molds on both sides of the mold body 100. The half molds and the mold body 100 are spliced ​​together to form a complete bottle body mold.

[0040] Furthermore, refer to Figure 4In this embodiment, if the area of ​​the factory area in the length direction is insufficient, the two parallel semi-mold cavity production lines can not only undertake the workload of the original single production line, but also reduce the footprint in the length direction.

[0041] Reference Figures 5-10 In order to better utilize the above-mentioned fixed mold closing structure, this embodiment also provides an independent double-sided mold closing device, which further includes a side mold 200, which is movably disposed on both sides of the mold body 100.

[0042] Among them, the side mold 200 has a third half mold cavity A3 that corresponds to the first half mold cavity A1 or the second half mold cavity A2. The two side molds 200 are spliced ​​and combined with the mold body 100 to form two independent bottle production lines.

[0043] The bottom mold 300 is correspondingly set on the top of the first half mold cavity A1 and the second half mold cavity A2 on both sides of the mold body 100. The bottom mold 300, together with the mold body 100 and the side mold 200, forms a complete bottle production chamber. The function of the bottom mold 300 is to fill the gap at the top of the chamber formed by the first half mold cavity A1 and the third half mold cavity A3.

[0044] The side mold 200 includes a side seat 201, a driving component 202 and a moving module 203. The side seats 201 are symmetrically arranged on both sides of the mold body 100. The two side seats 201 are fixedly connected to the center seat 101 by a connecting rod 201a and a sliding rod 201b.

[0045] There are two types of structures and installation methods for the slide rod 201b. The first type is that at least two slide rods 201b are symmetrically arranged, and each slide rod 201b can slide through the center seat 101, and both ends of the slide rod 201b are fixedly inserted into the side seat 201.

[0046] The second type: The slide bar 201b includes a first rod 201b-1 and a second rod 201b-2 arranged coaxially. The first rod 201b-1 and the second rod 201b-2 are symmetrically fixed and inserted into both sides of the center seat 101. The other end of the first rod 201b-1 is fixedly connected to a side seat 201 on one side, and the other end of the second rod 201b-2 is fixedly connected to a side seat 201 on the other side.

[0047] The bottom mold 300 is slidably inserted into the outside of the slide rod 201b. Several sets of sealing elements 301 are fixed in an array at the bottom of the bottom mold 300. The sealing elements 301 can be inserted into the top of the bottle cavity formed by splicing the first half mold cavity A1 and the third half mold cavity A3 or the second half mold cavity A2 and the third half mold cavity A3.

[0048] In this embodiment, the preform is placed upside down into the bottle cavity with the bottle mouth facing upwards. The sealing member 301 is located at the top of the bottle cavity and serves as a bottom mold to fill the bottom cavity portion of the bottle cavity.

[0049] The installation methods of the drive component 202 also include at least the following two types. The first type is that the output shaft of the drive component 202 faces the plane where the connecting rod 201a is located. A hinge rod 202a is rotatably connected to the output shaft of the drive component 202. The other end of the hinge rod 202a is rotatably connected to the moving module 203. During use, the drive component 202 is preferably a cylinder or a hydraulic cylinder. Its output shaft can extend and retract to change its length. The output shaft rotates and reverses direction through the hinge rod 202a, and pushes the moving module 203 horizontally so that it is spliced ​​with the mold cavity seat 103.

[0050] The second method is as follows: the driving component 202 is fixedly connected to the side seat 201 near the center seat 101, and the output shaft of the driving component 202 is fixedly connected to the moving module 203. In this method, the output shaft of the driving component 202 only needs to push the moving module 203 horizontally to complete the splicing of the moving module 203 and the mold cavity seat 103.

[0051] The third half-mold cavity A3 has the same structure as the first half-mold cavity A1. The third half-mold cavity A3 array is opened on the side of the moving module 203 near the mold body 100. The other side of the moving module 203 is connected to the drive component 202, and at least two sets of sliders 203a are symmetrically fixed on the side wall of the moving module 203 on this side. The sliders 203a are slidably engaged with the slide rails 203b fixedly connected on the worktable.

[0052] Furthermore, the cooperation between slider 203a and slide rail 203b can ensure the stability of the horizontal movement of the moving module 203.

[0053] Finally, it should be noted that the methods and devices described in detail above are merely embodiments, and those skilled in the art can modify these embodiments in different ways as long as they do not depart from the scope of this utility model.

Claims

1. A fixed mold structure, characterized by: include, A mold (100) is fixed; The mold body (100) has several sets of first half-mold cavities (A1) and second half-mold cavities (A2) symmetrically opened on both sides; The axes of the first half-cavity (A1) and the second half-cavity (A2) are parallel to each other.

2. The fixed clamp structure according to claim 1, characterized by: The mold (100) includes a central seat (101) and a docking seat (102) and a mold cavity seat (103) fixed sequentially on its opposite side walls.

3. The fixed clamp structure according to claim 2, characterized by: The side wall of the mold cavity seat (103) away from the docking seat (102) is the mold closing plane (M), and the mold closing plane (M) of the two mold cavity seats (103) is parallel to the center seat (101).

4. The fixed mold structure of Claim 3 wherein: The first half-cavity (A1) and the second half-cavity (A2) have the same structure; The radial section of the cavity wall of the first half-mold cavity (A1) includes a first end (D1) and a second end (D2), and the straight line (X) where the first end (D1) and the second end (D2) are located is located in the mold closing plane (M).

5. A stand-alone dual sided clamp apparatus, characterized by: It also includes, Side mold (200), the side mold (200) is movably disposed on both sides of the mold body (100); The side mold (200) is provided with a third half mold cavity (A3) that corresponds to and fits into the first half mold cavity (A1) or the second half mold cavity (A2); Bottom mold (300) is disposed on the top of the first half-mold cavity (A1) and the second half-mold cavity (A2) on both sides of the mold body (100).

6. The independent dual side clamp apparatus of claim 5, wherein: The side mold (200) includes a side seat (201), a driving component (202), and a moving module (203), wherein the side seat (201) is symmetrically arranged on both sides of the mold body (100); A connecting rod (201a) and a sliding rod (201b) are fixedly connected between the side seats (201) on both sides and the center seat (101).

7. The independent dual side clamp apparatus of claim 6, wherein: At least two slide rods (201b) are symmetrically arranged. Each slide rod (201b) can slide through the central seat (101), and both ends of the slide rod (201b) are fixedly inserted into the side seat (201).

8. The independent dual side clamp apparatus of claim 6, wherein: The slide bar (201b) includes a first rod (201b-1) and a second rod (201b-2) arranged coaxially. The first rod (201b-1) and the second rod (201b-2) are respectively symmetrically fixedly inserted into both sides of the center seat (101). The other end of the first rod (201b-1) is fixedly connected to a side seat (201) on one side, and the other end of the second rod (201b-2) is fixedly connected to a side seat (201) on the other side.

9. The independent double-sided mold clamping device according to claim 7 or 8, characterized in that: The bottom mold (300) is slidably inserted into the outside of the slide rod (201b). Several sets of sealing elements (301) are fixed in an array at the bottom of the bottom mold (300). The sealing elements (301) can be inserted into the top of the bottle cavity formed by splicing the first half mold cavity (A1) and the third half mold cavity (A3) or the second half mold cavity (A2) and the third half mold cavity (A3).

10. The independent double-sided mold clamping device according to claim 9, characterized in that: The output shaft of the drive unit (202) faces the plane where the connecting rod (201a) is located. A hinge rod (202a) is rotatably connected to the output shaft of the drive unit (202), and the other end of the hinge rod (202a) is rotatably connected to the moving module (203).

11. The independent double-sided mold clamping device according to claim 9, characterized in that: The drive unit (202) is fixedly connected to the side of the side seat (201) near the center seat (101), and the output shaft of the drive unit (202) is fixedly connected to the moving module (203).

12. The independent double-sided mold clamping device according to any one of claims 6, 7, 8, 10 and 11, characterized in that: The third half-mold cavity (A3) has the same structure as the first half-mold cavity (A1), and the array of the third half-mold cavities (A3) is opened on the side of the movable module (203) close to the mold body (100); The other side of the moving module (203) is connected to the drive unit (202), and at least two sets of sliders (203a) are symmetrically fixed on the side wall of the moving module (203) on this side. The sliders (203a) are slidably engaged with the slide rails (203b) fixedly connected to the worktable.

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