Lower packaging mechanism of storage type blow molding machine

Abstract

The utility model discloses a lower encapsulation mechanism of a storage type blow molding machine, which comprises an encapsulation support used for fixing the lower encapsulation mechanism and a pair of encapsulation plates capable of opening and closing relative to the encapsulation support, the encapsulation support is provided with a pair of transverse frames extending along the transverse direction, each transverse frame is fixedly provided with a linear guide rail, and the linear guide rails are fixedly connected with the encapsulation support. The packaging plates are installed on packaging plate installation frames respectively, sliding seats connected with the linear guide rails in a sliding fit mode are arranged at the bottoms of the packaging plate installation frames respectively, the packaging support is further provided with a pair of longitudinal frames, air cylinders are fixedly connected to the longitudinal frames respectively, and the air cylinders are arranged on the longitudinal frames. The air cylinders act synchronously and are in transmission connection with the packaging plate mounting frames respectively.

Description

Technical Field

[0001] The present application relates to the technical field of plastic molding, and in particular to a lower encapsulation mechanism of a storage-type blow molding machine. Background Art

[0002] Hollow blow molding is a rapidly developing plastic processing method. The tubular plastic preform obtained by extrusion of thermoplastic resin is placed in a split mold. After the mold is closed, compressed air is injected into the plastic preform, causing the plastic preform to expand and adhere to the inner wall of the mold. After cooling and demolding, various hollow plastic products are obtained.

[0003] The working principle of the accumulator blow molding machine is to heat the molten plastic through the extruder and then inject it into the accumulator. When the molten material in the accumulator reaches a certain amount, the molten material is squeezed out by the piston or screw and passes through the die to form a parison. The die is then closed, blown and cooled to finalize the shape, and the desired hollow product is finally obtained.

[0004] To facilitate blow molding, the lower opening of the tubular plastic preform needs to be sealed before the split mold is closed. This allows for air to be inflated before closing the mold. However, most current sealing devices are either top seals or simple bottom seals built into the mold. Therefore, a new accumulator-type bottom seal mechanism for blow molding machines is urgently needed to address this issue. Summary of the Invention

[0005] The purpose of this application is to provide a lower encapsulation mechanism suitable for an accumulator-type blow molding machine.

[0006] To achieve the above objectives, this application adopts the following technical solutions:

[0007] The present application provides a lower encapsulation mechanism of an accumulator-type blow molding machine, comprising an encapsulation bracket for fixing the lower encapsulation mechanism and a pair of encapsulation plates capable of opening and closing relative to the encapsulation bracket. The encapsulation bracket has a pair of transverse frames extending laterally, and each transverse frame is fixedly mounted with a linear guide rail. Each of the encapsulation plates is mounted on an encapsulation plate mounting frame, and the bottom of each encapsulation mounting frame has a sliding seat slidably connected to the linear guide rail. The encapsulation bracket also has a pair of longitudinal frames, and each of the longitudinal frames is fixedly connected with a cylinder. The pair of cylinders operate synchronously and are respectively transmission-connected to each of the encapsulation plate mounting frames.

[0008] In one possible implementation, each of the encapsulation plate mounting frames has a height adjustment section extending in the vertical direction, and a long slot extending in the vertical direction is provided on the height adjustment section. An adjustment bracket perpendicular to the encapsulation plate is fixedly connected to the bottom of each of the encapsulation plates, and the adjustment bracket is fixed to the encapsulation plate mounting frame by bolts, and each bolt passes through the long slot of the height adjustment section.

[0009] In a possible implementation, the distance between a pair of the encapsulation plate mounting frames gradually decreases from bottom to top.

[0010] In a possible implementation, each of the encapsulation plates has a plurality of notches.

[0011] In a possible implementation, the encapsulation bracket has an inverted "M"-shaped base frame and a pair of horizontal frames and a pair of vertical frames. The pair of horizontal frames and the pair of vertical frames form a rectangular frame, and the base frame is installed below the rectangular frame.

[0012] In one possible implementation, a pair of the cylinders are respectively fixed by cylinder mounting plates fixed on each of the longitudinal frames, each of the cylinders has a cylinder joint, each of the cylinder joints is respectively fixedly connected to an encapsulating push plate, and each of the encapsulating push plates extends longitudinally and is respectively fixedly connected to each of the encapsulating plate mounting frames.

[0013] The beneficial effect of this utility model is that the entire mechanism of this design can achieve the sealing of the lower end of the tubular blank extruded by the accumulator extruder head through the air intake or exhaust of the cylinder. The mechanism has a compact and simple structure, stable and reliable operation, high mechanical strength, space saving, easy adjustment, and convenient adjustment of the blow molding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A perspective view of a lower encapsulation mechanism of an accumulator blow molding machine provided in accordance with one embodiment of the present application;

[0015] Figure 2 A front view of a lower encapsulation mechanism of an accumulator blow molding machine provided in one embodiment of the present application;

[0016] Figure 3 A top view of a lower encapsulation mechanism of an accumulator blow molding machine provided in accordance with one embodiment of the present application;

[0017] Figure 4 A right side view of a lower encapsulation mechanism of an accumulator blow molding machine provided in accordance with one embodiment of the present application.

[0018] Among them: 1. Encapsulation bracket; 11. Linear guide; 12. Longitudinal frame; 13. Horizontal frame; 3. Cylinder; 31. Cylinder mounting plate; 32. Cylinder joint; 4. Encapsulation plate mounting frame; 41. Slide; 42. Long slot hole; 5. Encapsulation plate; 51. Adjustment bracket; 52. Notch; 6. Encapsulation push plate. DETAILED DESCRIPTION

[0019] In order to describe the technical content, structural features, achieved purpose and effect of the utility model in detail, the technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Obviously, the embodiments described are only a part of the embodiments of the present application, rather than all of the embodiments. In the following description, for the purpose of explanation, many specific details are set forth to provide a detailed description of various exemplary embodiments or implementations of the utility model. However, various exemplary embodiments may also be implemented without these specific details or in the case of one or more equivalent arrangements. In addition, various exemplary embodiments may be different, but are not necessarily exclusive. For example, without departing from the inventive concept, the specific shape, structure and characteristics of the exemplary embodiment may be used or implemented in another exemplary embodiment.

[0020] In the description of the present application, unless otherwise specified, “plurality” means two or more.

[0021] See also Figure 1 As shown, in the embodiment of the present application, a lower sealing mechanism of an accumulator-type blow molding machine is provided, comprising a sealing bracket 1 for fixing the lower sealing mechanism, and a pair of sealing plates 5 that can open and close relative to the sealing bracket 1. The pair of sealing plates 5 extend along a horizontal plane, and each sealing plate 5 has a plurality of notches 52. When the pair of sealing plates 5 are closed, the plurality of notches 52 on the pair of sealing plates 5 face each other, sealing the lower end of the tubular blank.

[0022] See also Figure 2 The encapsulation bracket 1 secures the lower encapsulation mechanism to the main frame of the blow molding machine. In this embodiment, the encapsulation bracket 1 comprises an inverted "M"-shaped base frame, a pair of transverse frames 13, and a pair of longitudinal frames 12. The pair of transverse frames 13 and the pair of longitudinal frames 12 form a rectangular frame, and the base frame is mounted below the rectangular frame. A pair of linear guide rails 11 are fixedly mounted on each transverse frame 13.

[0023] A pair of enclosure panels 5 are mounted on a pair of enclosure panel mounting frames 4. Each enclosure panel 4 includes a pair of side support plates, each with a slide 41 at its bottom that slidably engages with a linear guide rail 11. Each side support plate has an inclined section extending upward and inward, and a height adjustment section extending vertically. Each height adjustment section is provided with a vertically extending slotted hole 42. An adjustment bracket 51, perpendicular to the enclosure panel 5, is fixedly connected to the bottom of each enclosure panel 5. The adjustment bracket 5 is secured to the enclosure panel mounting frame 4 with bolts, each bolt passing through the slotted hole 42 in the height adjustment section. Loosening the bolts allows for free adjustment of the enclosure panel 5's height, while tightening them allows for a fixed height.

[0024] A cylinder 3 is fixedly connected to each of the pair of longitudinal frames 12 of the encapsulation bracket 1. The pair of cylinders 3 operate synchronously and are respectively connected to the encapsulation plate mounting frames.

[0025] See also Figure 3 、 4 A pair of cylinders 3 are fixed by cylinder mounting plates 31 fixed to each longitudinal frame 12. Each cylinder 3 has a cylinder joint 32, and each cylinder joint 32 is fixedly connected to an encapsulation push plate 6. Each encapsulation push plate 6 extends longitudinally and has its ends fixedly connected to a pair of side brackets of each encapsulation plate mounting frame 4.

[0026] The lower sealing mechanism of the present application seals the lower end of the tubular blank extruded from the accumulator extruder head by means of air intake or exhaust from a cylinder. The distance between the pair of sealing plate mounting brackets 4 gradually decreases from bottom to top. When the pair of sealing plate mounting brackets are closed, the distance between the inner edges of the pair of sealing plates 5 is minimized, effectively sealing the lower end of the tubular blank.

[0027] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements are possible without departing from the spirit and scope of the present invention. The scope of protection claimed by the present invention is defined by the appended claims, the description and their equivalents.

Claims

1. A lower sealing mechanism of an accumulator blow molding machine, characterized in that: It includes an encapsulation bracket for fixing the lower encapsulation mechanism and a pair of encapsulation plates that can open and close relative to the encapsulation bracket. The encapsulation bracket has a pair of horizontal frames extending in the transverse direction, and each horizontal frame is fixedly installed with a linear guide rail. Each of the encapsulation plates is respectively installed on an encapsulation plate mounting frame, and the bottom of each encapsulation mounting frame has a sliding seat that is slidably connected to the linear guide rail. The encapsulation bracket also has a pair of longitudinal frames, and each of the longitudinal frames is fixedly connected with a cylinder. The pair of cylinders move synchronously and are respectively connected to the encapsulation plate mounting frames in a transmission manner.

2. The lower sealing mechanism of the storage type blow molding machine according to claim 1, characterized in that: Each of the encapsulation plate mounting frames has a height adjustment section extending in the vertical direction, and a long slot extending in the vertical direction is provided on the height adjustment section. An adjustment bracket perpendicular to the encapsulation plate is fixedly connected to the bottom of each of the encapsulation plates, and the adjustment bracket is fixed to the encapsulation plate mounting frame by bolts, and each bolt passes through the long slot of the height adjustment section.

3. The lower sealing mechanism of the accumulator blow molding machine according to claim 1, characterized in that: The distance between the pair of encapsulation plate mounting frames gradually decreases from bottom to top.

4. The lower sealing mechanism of the accumulator blow molding machine according to claim 1, characterized in that: Each of the encapsulating plates has a plurality of notches.

5. The lower sealing mechanism of the accumulator blow molding machine according to claim 1, characterized in that: The encapsulation bracket has an inverted "M"-shaped base frame, a pair of horizontal frames and a pair of vertical frames. The pair of horizontal frames and the pair of vertical frames form a rectangular frame, and the base frame is installed below the rectangular frame.

6. The lower sealing mechanism of the accumulator blow molding machine according to claim 1, characterized in that: A pair of the cylinders are respectively fixed by cylinder mounting plates fixed on the longitudinal frames. Each of the cylinders has a cylinder joint, and each cylinder joint is respectively fixedly connected to an encapsulating push plate. Each of the encapsulating push plates extends longitudinally and is respectively fixedly connected to each encapsulating plate mounting frame.

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