Blow molding equipment of blow molding container

Abstract

The utility model discloses blow molding equipment of a blow molding container, and relates to the technical field of container blow molding. The device comprises a supporting box, a connecting plate and a closing plate, a bottom fixing plate is fixed to the bottom of the supporting box, compressed springs are fixed to the four corners of the top of the bottom fixing plate, the connecting plate is movably connected into the supporting box and comprises a lifting plate and a pushing assembly, and the pushing assembly is movably connected into the lifting plate in a penetrating mode; a sealing plate is arranged at the top of the supporting box, and a sleeve penetrates through and is fixed to the center in the sealing plate. The supporting box, the connecting plate and the closing plate are arranged, so that the problems that the blow molding uniformity is affected due to the fact that blanks are not supported when blow molding equipment of blow molding containers works, and the blow molding containers are damaged due to the fact that the blanks are subjected to overlarge pressure of high-pressure air are solved; the blow molding equipment has the advantages that when the blow molding equipment of the blow molding container works, blanks can be well supported, blow molding is more uniform, the pressure of the blanks can be reduced, and the blow molded container is prevented from being damaged.

Description

Technical Field

[0001] The utility model belongs to the technical field related to container blow molding, in particular to a blow molding device for blow molding containers. Background Art

[0002] Blow molding mainly refers to hollow blow molding (also known as blow molding), which is a method of using gas pressure to inflate the hot melt parison closed in the mold to form a hollow product. It is a rapidly developing plastic molding method. The mold used for blow molding only has a female mold (concave mold). Compared with injection molding, the equipment cost is lower, the adaptability is stronger, the molding performance is good (such as low stress), and the products with complex undulating curves (shapes) can be molded. Blow molding containers are usually blow molded. During the blow molding process, the container maintains a good shape and is demolded to produce the container. However, it still has the following disadvantages in actual use:

[0003] 1. When the blow molding equipment of the blow molding container is working, the blank is directly suspended in the blow molding equipment. After the high-pressure air is blown into the blank in the blow molding equipment, the blow molding is performed. During the blow molding process, the blank is easily affected by gravity, which affects the uniformity of the blow molding;

[0004] 2. When the blow molding equipment of the blow-molded container is working, the blank directly fills the cavity of the blow-molded container. The volume of the cavity in the blow molding equipment will not change during blow molding, which may easily cause the blow-molded container to be damaged due to excessive high-pressure air pressure. Utility Model Content

[0005] The utility model aims to provide a blow molding device for blow molding containers. By arranging a support box, a connecting plate and a closing plate, the utility model solves the problems that the blank has no support when the blow molding device is working, which affects the uniformity of blow molding, and the blank is subjected to excessive high-pressure air pressure, causing the blow-molded container to be damaged.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model discloses a blow molding device for blow molding containers, comprising a support box, a connecting plate and a closing plate, wherein a bottom fixing plate is fixed to the bottom of the support box, compression springs are fixed to the four corners of the top of the bottom fixing plate, a connecting plate is movably connected inside the support box, the connecting plate comprises a lifting plate and a pushing assembly, a pushing assembly is movably connected through the lifting plate, a closing plate is arranged on the top of the support box, a sleeve is fixed through the inner center of the closing plate, when working, the connecting plate is accommodated therein by the support box, and the top of the support box is closed by the closing plate, so that the corresponding support is placed thereon.

[0008] Furthermore, an opening is provided through the center of the top of the bottom fixing plate, support blocks are fixed to the tops of the fixing plates on both sides of the opening, and a connecting plate is movably arranged on the bottom fixing plate through the opening.

[0009] Furthermore, the lifting plate includes a support plate, a through hole, a top plate and a movable opening, a top plate is fixed on the top of the support plate, a movable opening is opened through the center of the top of the top plate, a through hole is opened through the center of the top of the support plate, the top ends of the four compression springs are fixed to the bottom of the support plate, the lifting plate provides support for the top plate through the support plate, is movably connected to an output end of the electric push rod through the through hole, and is movably connected to the push plate through the movable opening.

[0010] Furthermore, the pushing assembly includes an electric push rod 1 and a pushing plate, the pushing plate is fixed to the telescopic end of the electric push rod 1, and the pushing assembly drives the pushing plate to rise and fall through the electric push rod 1.

[0011] Furthermore, the electric push rod 1 is fixed to the bottom of the support plate, the telescopic end of the electric push rod 1 is movably connected in the movable opening, the push plate is movably connected in the movable opening, and the electric push rod 1 drives the push plate to rise.

[0012] Furthermore, side panels are fixed at both ends of the closing plate, and an electric push rod 2 is fixed at the bottom center of each side panel. The closing plate is connected to the electric push rod 2 through the side panel, and the electric push rod 2 generates power to drive the closing plate to rise.

[0013] The utility model has the following beneficial effects:

[0014] 1. The utility model solves the problem that the blank of the blow-molded container has no support and affects the uniformity of blow molding when the blow-molding equipment of the blow-molded container is working by arranging a support box, a connecting plate and a closing plate. The electric push rod 1 is started, and the electric push rod 1 drives the push plate to rise until the push plate rises to contact the bottom of the closing plate, and the blow-molded container blank is opened upward with the bottom supported on the push plate. Then the electric push rod 1 is started to descend, and the electric push rod 1 is descended until the top of the plastic blank is flush with the top of the sleeve, and blow molding begins, so that the blank of the blow-molded container can be well supported when the blow-molding equipment of the blow-molded container is working, thereby ensuring the uniformity of blow molding.

[0015] 2. The utility model solves the problem that the blow-molded container is damaged due to excessive pressure of high-pressure air on the blank during operation of the blow-molding equipment of the blow-molded container by arranging a support box and a connecting plate. After the blank expands, the electric push rod is started to descend, so that the push plate descends into the movable opening, and then the blank is blown again, so that the blank is blown into the support box, and the bottom of the blank contacts the top of the top plate. When the blow molding continues, the blank presses the top plate to compress the compression spring until the bottom of the support plate contacts the support block and is restricted by the support block. After waiting for the blank to cool, the blow molding is completed, so that the blow-molded blank can be supported during the blow molding, thereby reducing the damage of the blow-molded container. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional diagram of the assembly structure of a blow molding device for a blow molding container;

[0017] Figure 2 It is a three-dimensional diagram of the cross-sectional structure of the support box;

[0018] Figure 3 It is a three-dimensional diagram of the connecting plate structure;

[0019] Figure 4 It is a three-dimensional diagram of the lifting plate structure;

[0020] Figure 5 To promote the structural stereogram of the assembly;

[0021] Figure 6 It is a three-dimensional diagram of the closed plate structure.

[0022] Reference numerals:

[0023] 1. Support box; 101. Bottom fixing plate; 102. Opening; 103. Support block; 104. Compression spring; 2. Connecting plate; 201. Lifting plate; 2011. Support plate; 2012. Through hole; 2013. Top plate; 2014. Movable opening; 202. Pushing assembly; 2021. Electric push rod 1; 2022. Pushing plate; 3. Closing plate; 301. Sleeve; 302. Side plate; 303. Electric push rod 2. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0025] See also Figure 1-6As shown, the utility model is a blow molding device for blow molding containers, including a support box 1, a connecting plate 2 and a closing plate 3. A bottom fixing plate 101 is fixed to the bottom of the support box 1. The support box 1 allows the container to form a suitable molding shape after blow molding. The bottom fixing plate 101 supports the connecting plate 2 thereon, so that the connecting plate 2 is accommodated in the support box 1. Compression springs 104 are fixed at the four corners of the top of the bottom fixing plate 101. The compression springs 104 support the connecting plate 2 in the support box 1. The connecting plate 2 is movably connected in the support box 1. The connecting plate 2 provides support for the bottom of the blow-molded container to prevent the bottom of the container from being too thin during blow molding. The connecting plate 2 includes a lifting plate 201 and a pushing assembly 202. The lifting plate 201 is movably connected with the pushing assembly 202. When the pushing assembly 202 is working, it provides support for the raw material blank in the upper part of the support box 1. A closing plate 3 is provided on the top of the support box 1. When the closing plate 3 is working, the top of the support box 1 is closed. A sleeve 301 is fixed to the center of the interior of the closing plate 3, and the blank is movably connected through the sleeve 301.

[0026] Among them Figure 1 , 2 As shown, an opening 102 is provided through the center of the top of the bottom fixing plate 101, and support blocks 103 are fixed to the top of the fixing plates on both sides of the opening 102. When the bottom fixing plate 101 is working, the pushing plate 2022 is set therein through the opening 102, and the descending position of the connecting plate 2 is limited by the support blocks 103.

[0027] Among them Figure 1 , 3 As shown in Figures 4, the lifting plate 201 includes a support plate 2011, a through hole 2012, a top plate 2013 and a movable opening 2014. The top plate 2013 is fixed on the top of the support plate 2011, and the movable opening 2014 is opened through the center of the top of the top plate 2013. A through hole 2012 is opened through the center of the top of the support plate 2011. The top ends of the four compression springs 104 are fixed to the bottom of the support plate 2011. The lifting plate 201 supports the top plate 2013 thereon through the support plate 2011, and is movably connected to the pushing plate 2022 through the top plate 2013.

[0028] Among them Figure 1 , 3 As shown in Figure 5, the pushing assembly 202 includes an electric push rod 2021 and a pushing plate 2022. The pushing plate 2022 is fixed to the telescopic end of the electric push rod 2021. The pushing plate 2022 is driven to rise by the electric push rod 2021. After the pushing plate 2022 rises to a suitable position, the bottom of the container blank in the sleeve 301 is supported.

[0029] Among them Figure 1 , 3As shown in , 4 and 5, the electric push rod 2021 is fixed at the bottom of the support plate 2011, the telescopic end of the electric push rod 2021 is movably connected in the movable opening 2014, and the pushing plate 2022 is movably connected in the movable opening 2014. The electric push rod 2021 is supported on the support plate 2011 and is movably connected in the movable opening 2014 through the pushing plate 2022, so that the pushing plate 2022 is used after it is lowered into the top plate 2013.

[0030] Among them Figure 1 , 6 As shown, side panels 302 are fixed at both ends of the closing plate 3, and an electric push rod 2 303 is fixed at the bottom center of each side panel 302. The closing plate 3 is connected to the electric push rod 2 303 through the side panel 302, and the side panel 302 is driven to rise and fall through the electric push rod 2 303, thereby driving the closing plate 3 to rise and fall on the supporting box 1.

[0031] The specific working principle of the utility model is as follows: when working, first start the electric push rod 2021, the electric push rod 2021 drives the push plate 2022 to rise, until the push plate 2022 rises to contact the bottom of the closing plate 3, the opening 102 of the blow-molded container blank is facing upward, and the bottom is supported on the push plate 2022, and then the electric push rod 2021 is started to descend, and the electric push rod 2021 is descended until the top of the plastic blank is flush with the top of the sleeve 301, and then the external blow molding component is clamped to the opening 102 position of the blank, and air is blown into the blank to make the blank expand. After the blank expands, start the electric push rod 2021 to descend, so that the push plate 2022 descends to the movable opening 2014, and then blows the blank again. The blank is blown into the support box 1, and the bottom of the blank contacts the top of the top plate 2013. When blow molding continues, the blank presses the top plate 2013, compressing the compression spring 104, until the bottom of the support plate 2011 contacts the support block 103 and is restricted by the support block 103. After waiting for the blank to cool, the blow molding is completed. After blow molding, the electric push rod 2 303 at the bottom of the side plate 302 is started to drive the closing plate 3 to rise. When the closing plate 3 rises, the compression spring 104 drives the lifting plate 201 to rise, pushing the formed blank in the support box 1 to rise, until the closing plate 3 rises to a suitable height, the blank is taken out of the support box 1, and then the electric push rod 2 303 is started to drive the closing plate 3 to descend to the top of the support box 1, preparing for the next blow molding operation.

[0032] The above are only preferred embodiments of the present invention and do not limit the present invention. Any modification to the technical solutions recorded in the aforementioned embodiments and any equivalent replacement of some of the technical features therein, as well as any modification, equivalent replacement and improvement made, are within the protection scope of the present invention.

Claims

1. A blow molding device for blow molding containers, comprising a support box (1), a connecting plate (2) and a closing plate (3), characterized in that: A bottom fixing plate (101) is fixed at the bottom of the support box (1), and compression springs (104) are fixed at the four corners of the top of the bottom fixing plate (101). A connecting plate (2) is movably connected inside the support box (1), and the connecting plate (2) comprises a lifting plate (201) and a pushing assembly (202). The lifting plate (201) is movably connected with the pushing assembly (202). A closing plate (3) is arranged on the top of the support box (1), and a sleeve (301) is fixed through the center of the inside of the closing plate (3).

2. A blow molding device for a blow molded container according to claim 1, characterized in that: An opening (102) is provided through the center of the top of the bottom fixing plate (101), and support blocks (103) are fixed to the tops of the fixing plates on both sides of the opening (102).

3. The blow molding device for a blow-molded container according to claim 1, characterized in that: The lifting plate (201) comprises a support plate (2011), a through hole (2012), a top plate (2013) and a movable opening (2014); the top plate (2013) is fixed to the top of the support plate (2011); the movable opening (2014) is provided in the center of the top of the top plate (2013); the through hole (2012) is provided in the center of the top of the support plate (2011); and the top ends of the four compression springs (104) are fixed to the bottom of the support plate (2011).

4. A blow molding device for a blow molded container according to claim 3, characterized in that: The pushing assembly (202) comprises an electric push rod (2021) and a pushing plate (2022), and the pushing plate (2022) is fixed to the telescopic end of the electric push rod (2021).

5. The blow molding device for a blow molded container according to claim 4, characterized in that: The electric push rod 1 (2021) is fixed to the bottom of the support plate (2011), the telescopic end of the electric push rod 1 (2021) is movably connected in the movable opening (2014), and the push plate (2022) is movably connected in the movable opening (2014).

6. The blow molding device for a blow molded container according to claim 1, characterized in that: Side plates (302) are fixed at both ends of the closing plate (3), and two electric push rods (303) are fixed at the center of the bottom of each side plate (302).

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