Easily isolated sealed single-action bottle blowing mold station

By introducing structures such as mold frame support, fixed-side mold, moving-side mold, and bottom mold into the single-mold blow molding station of the blow molding machine, and by utilizing the cooperation of the mold locking mechanism and cam roller, easy isolation and sealing are achieved, solving the sealing problem of the single-mold blow molding station, extending the service life of the isolation and sealing parts, and making it suitable for aseptic blow molding processes.

CN118107151BActive Publication Date: 2025-12-30JIANGSU NEWAMSTAR PACKAGING MACHINERY
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Patent Information

Application Number
CN202410306291.0
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-03-18
Publication Date
2025-12-30
Estimated Expiration
2044-03-18

AI Technical Summary

Technical Problem

Existing blow molding machines with single-mold blow molding stations cannot easily achieve easy isolation and sealing, and the isolation and sealing parts have a short lifespan, which cannot meet the requirements of aseptic blow molding processes.

Method used

A single-mold blow molding station with easy isolation and sealing was designed. It adopts a mold frame support, a fixed-side mold, a moving-side mold, a bottom mold, a bottom mold support, a swing arm, a bottom mold slider, and a bottom mold lifting transmission mechanism. Through the cooperation of the mold locking mechanism, cam, and roller, the bottom mold can be precisely controlled and isolated and sealed. The bottom mold does not hinder the separation of the moving-side mold and the fixed-side mold during the mold opening and closing process.

Benefits of technology

It achieves a simple structure and reliable operation of the single-mold blow molding station, with precise control of the bottom mold movement, reducing fatigue damage to the isolation and sealing parts, and is suitable for aseptic blow molding processes.

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Abstract

The application discloses a single-opening-mold bottle blowing mold station which is easy to isolate and seal, comprising a mold frame support, a fixed side mold, a movable side mold, a bottom mold, a bottom mold support, a swing arm, a bottom mold sliding block, a bottom mold lifting transmission mechanism, a locking part in a mold locking mechanism is installed on the outer end of the fixed side mold, the swing arm is fixed with a vertical shaft on the movable side mold, and the swing arm or the movable side mold can drive the bottom mold sliding block to vertically move the bottom mold on the bottom mold support after swinging through the bottom mold lifting transmission mechanism; a cam and a roller are further arranged, the cam is fixed with the swing arm, the roller is rotatably installed on the bottom mold support, the roller abuts against the cam, when the cam swings along with the swing arm, the roller can roll along the flange or the groove on the cam, and the flange or the groove on the cam is connected by a small pushing section and a large circular arc section. The single-opening-mold bottle blowing mold station is easy to isolate and seal and can prolong the service life of the parts for isolation and sealing.
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Description

Technical Field

[0001] This invention relates to the field of blow molding machines, and more specifically to a single-mold blow molding station that is easy to isolate and seal. Background Technology

[0002] Blow molding machines are key equipment for producing various liquid packaging plastic empty bottles. Plastic empty bottles are made by blowing preforms. The heated preforms are sent to the blow molding die, the sealing unit seals the bottle mouth, and the stretching unit stretches the preform while injecting high-pressure gas according to a certain process to make the preform adhere to the die wall and form an empty bottle. The blow molding die consists of two side molds and a bottom mold that can be matched. After the die is opened, the two side molds and the bottom mold separate from the empty bottle, and then the bottle taking mechanism removes the empty bottle from the die. The blow molding machine has strict requirements for each process and requires high coordination, especially for single-mold blow molding stations where one mold is fixed and the other rotates. The blow molding die in a single-mold blow molding station includes a fixed-side mold, a moving-side mold, and a bottom mold. These three molds, when closed, form the blow molding die. One of the annular inner walls enclosed by the bottoms of the two side molds and the other of the side wall of the bottom mold have a wedge-shaped groove, while the other has a wedge-shaped retaining ring. During mold closing, the fixed-side mold and the moving-side mold align, and the bottom mold is fitted between the bottoms of the two side molds. The wedge-shaped retaining ring is embedded in the wedge-shaped groove. A locking mechanism is provided between the outer ends of the moving mold. After the mold is closed, the locking element in the locking mechanism moves to the locking position and locks the fixed mold and the moving mold, so that the fixed mold and the moving mold cannot be opened. The locking element can be a rotating shaft, a pin, a buckle, etc. When the mold is opened, the locking mechanism unlocks first, and then the moving mold rotates relative to the fixed mold to open. The bottom mold moves horizontally to get away from the fixed mold and then descends vertically to leave the space between the fixed mold and the moving mold. The aseptic blow molding process requires the blow molding station to be isolated and sealed to form an aseptic chamber. The forming of empty bottles is completed in the aseptic chamber, so that the empty bottles are not contaminated by bacteria. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a single-opening blow molding station that is easy to isolate and seal and can extend the service life of the isolation and sealing parts.

[0004] To solve the above problems, the technical solution adopted in this invention is as follows: a single-opening blow molding station that is easy to isolate and seal, comprising: a mold frame support, a fixed-side mold, a moving-side mold, a bottom mold, a bottom mold support, a swing arm, a bottom mold slider, and a bottom mold lifting transmission mechanism. The fixed-side mold is fixed on the mold frame support, and a rotatable vertical shaft is provided on the mold frame support. The inner end of the moving-side mold is fixed to the vertical shaft, so that the moving-side mold is hinged to the mold frame support. The inner end of the swing arm is fixed to the vertical shaft. After the swing arm drives the vertical shaft to rotate, the moving-side mold can rotate relative to the fixed-side mold to open and close. A mold locking mechanism is provided between the outer ends of the fixed-side mold and the moving-side mold. The slider is vertically slidable and mounted on the bottom mold support. The bottom mold is fixed to the top of the bottom mold slider and is located below the fixed-side mold and the moving-side mold. The bottom mold support is located on one side of the swing arm and is installed with the mold frame support. The locking mechanism has a locking element installed on the outer end of the fixed-side mold. After the swing arm or the moving-side mold swings, the bottom mold slider can be driven by the bottom mold lifting transmission mechanism to move vertically on the bottom mold support, carrying the bottom mold. A cam and a roller are also provided. The cam is fixed to the swing arm, and the roller is rotatably mounted on the bottom mold support around its own axis. The roller abuts against the cam, and the cam moves vertically with the swing arm. When the arm swings, the rollers roll along the flanges or grooves on the cam. The flanges or grooves on the cam are composed of a short push section and a long arc section. When the rollers roll on the push section, the push section drives the bottom mold support to move horizontally, allowing the bottom mold to engage with the bottom of the fixed-edge mold during mold closing or disengage from the bottom of the fixed-edge mold during mold opening. When the rollers roll on the arc section, the arc section keeps the bottom mold support and bottom mold stationary in the horizontal direction. During mold opening, the drive arm swings the cam forward. At this time, the moving-edge mold, driven by the arm, will move relative to the fixed-edge mold. The side mold rotates horizontally and disengages from the fixed side mold and the bottom mold. Driven by the swing arm or the moving side mold, the bottom mold slider descends with the bottom mold, allowing it to leave the space between the bottom of the fixed side mold and the moving side mold. Simultaneously, driven by the push stroke section on the cam, the bottom mold support moves in the direction that allows the bottom mold to disengage from the bottom of the fixed side mold. After the bottom mold and the fixed side mold disengage, the roller enters the arc section on the cam. Under the action of the arc section, the bottom mold support and the bottom mold remain stationary in the horizontal direction. When the bottom mold is not disengaged from the moving side mold and the fixed side mold, the height at which the bottom mold descends does not prevent the bottom mold from disengaging from the moving side mold and the fixed side mold.

[0005] Furthermore, in the aforementioned easily isolated and sealed single-mold blow molding station, the bottom mold lifting transmission mechanism comprises: a first link, a second link, a third link, and a fourth link. One end of the first link is hinged to the outer end of the swing arm via a spherical bearing, and the other end of the first link is hinged to the outer end of the second link via a spherical bearing. The inner end of the second link and the lower end of the third link are fixed together, and their fixed points are hinged to the bottom mold support via a hinge shaft. The upper end of the third link and the lower end of the fourth link are hinged together via a hinge shaft, and the upper end of the fourth link is hinged to the bottom mold slider via a hinge shaft. After the swing arm swings horizontally, it can drive the second link to rotate the third link via the first link. After the third link rotates, it can drive the bottom mold slider to vertically lift and lower the bottom mold on the bottom mold support via the fourth link.

[0006] Furthermore, in the aforementioned easily isolated and sealed single-mold blow molding station, the structure of the bottom mold lifting transmission mechanism may further include: a first connecting rod, a second connecting rod, a third connecting rod, a bottom mold cam, and a bottom mold roller. One end of the first connecting rod is hinged to the outer end of the swing arm via a spherical bearing, and the other end of the first connecting rod is hinged to the outer end of the second connecting rod via a spherical bearing. The inner end of the second connecting rod and the lower end of the third connecting rod are fixed together, and the fixed points of the two are hinged to the bottom mold support via a hinge shaft. The upper end of the third connecting rod and one of the bottom mold slider are provided with a bottom mold roller that can rotate around its own axis, and the other is provided with a bottom mold cam. The bottom mold roller abuts against the bottom mold cam, and the bottom mold roller can roll along the flange or groove on the bottom mold cam. After the swing arm swings horizontally, it can drive the second connecting rod to rotate the third connecting rod through the first connecting rod. After the third connecting rod rotates, it can drive the bottom mold slider to lift the bottom mold vertically through the cooperation of the bottom mold roller and the bottom mold cam.

[0007] Furthermore, in the aforementioned easy-to-isolate and seal single-mold blow molding station, the bottom mold cam is mounted on the bottom mold slider, and the bottom mold roller is mounted on the upper end of the third connecting rod.

[0008] Furthermore, in the aforementioned easy-to-isolate and seal single-mold blow molding station, the flange or groove profile on the bottom mold cam enables the bottom mold to stop moving after descending to the bottom between the fixed-side mold and the moving-side mold without affecting bottle removal.

[0009] Furthermore, in the aforementioned easy-to-isolate and sealable single-mold blow molding station, the bottom mold support is hinged to the mold frame support via a hinge shaft. When the roller rolls on the push stroke section, the push stroke section can drive the bottom mold support to swing horizontally around its hinge shaft with the mold frame support via the roller.

[0010] Furthermore, in the aforementioned easy-to-isolate and sealable single-mold blow molding station, the bottom mold support is driven by the push stroke section on the cam to swing horizontally by 2° to 7° in a direction that allows the bottom mold to separate from the fixed-edge mold, and then the bottom mold can separate from the fixed-edge mold.

[0011] Furthermore, in the aforementioned easily isolated and sealed single-mold blow molding station, the hinge axes of the bottom mold support and the moving side mold on the mold frame support coincide.

[0012] Furthermore, in the aforementioned easily isolated and sealed single-mold blow molding station, wherein: or, the hinge axis of the bottom mold support on the mold frame support and the hinge axis of the moving side mold on the mold frame support are on the split surface of the blow molding die obtained by mold closing, and are respectively located on both sides of the center of the blow molding die.

[0013] Furthermore, in the aforementioned easy-to-isolate and sealable single-mold blow molding station, the bottom mold support can be horizontally and linearly slidably mounted on the mold frame support. The sliding direction of the bottom mold support is perpendicular to the split surface of the blow molding die obtained after mold closing. When the roller rolls on the push stroke section, the push stroke section can drive the bottom mold support to slide horizontally and linearly with the bottom mold through the roller.

[0014] Furthermore, in the aforementioned easy-to-isolate and sealable single-mold blow molding station, the bottom mold support slides horizontally in a straight line for 3-10 mm in the direction that allows the bottom mold to separate from the fixed-edge mold under the drive of the push stroke section on the cam, and then the bottom mold can separate from the fixed-edge mold.

[0015] The advantages of this invention are as follows: the single-mold blow molding station has a simple structure, reliable operation, and can accurately control the movement of the moving side mold and the bottom mold. It is widely applicable, and the direct power for the lifting and lowering of the bottom mold comes from the opening and closing of the mold, making the lifting and lowering of the bottom mold easier to control. In addition, the locking element in the mold locking mechanism is installed on the outer end of the fixed side mold. Since the fixed side mold is fixed, the locking element in the mold locking mechanism only rotates on a fixed axis or moves vertically relative to the mold frame support, making the mold locking mechanism easy to isolate and seal. Furthermore, the single-mold blow molding station can make the bottom mold stop after a small horizontal movement and separation from the fixed side mold when the mold is opened, which greatly reduces the horizontal movement range of the bottom mold. This makes the single-mold blow molding station easy to isolate and seal, and makes the isolation and sealing parts less prone to fatigue damage, making it particularly suitable for aseptic blow molding processes. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a single-opening blow molding station for easy isolation and sealing as described in this invention, during mold closing. (The bottom mold is not shown.)

[0017] Figure 2 for Figure 1 The diagram shows the structure of a single-mold blow molding stand during mold opening. (The bottom mold is not shown.)

[0018] Figure 3 This is a schematic diagram of another structure of the single-opening blow molding station described in this invention, which is easy to isolate and seal, during mold closing. (The bottom mold is not shown.)

[0019] Figure 4 This is a schematic diagram of the cam structure.

[0020] Figure 5 This is a schematic diagram of the single-mold blow molding station of the present invention, which is easy to isolate and seal, and adopts a linear sliding structure of the bottom mold support during mold closing. (The bottom mold is not shown.)

[0021] Figure 6 This is a schematic diagram showing the positions of the fixed-side mold, moving-side mold, and bottom mold when they are closed. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to specific embodiments and accompanying drawings.

[0023] like Figure 1 , Figure 2 , Figure 4 , Figure 6As shown, a single-mold blow molding station that is easy to isolate and seal includes: a mold frame support 1, a fixed-side mold 2, a moving-side mold 3, a bottom mold 4, a bottom mold support 5, a swing arm 6, a bottom mold slider 9, and a bottom mold lifting transmission mechanism. The fixed-side mold 2 is fixed on the mold frame support 1. A rotatable vertical shaft 91 is provided on the mold frame support 1. The inner end of the moving-side mold 3 is fixed to the vertical shaft 91, so that the moving-side mold 3 is hinged to the mold frame support 1. The inner end of the swing arm 6 is fixed to the vertical shaft 91. After the swing arm 6 drives the vertical shaft 91 to rotate, the moving-side mold 3 can rotate relative to the fixed-side mold 2. The mold opens and closes by moving. A locking mechanism is provided between the outer ends of the fixed-side mold 2 and the moving-side mold 3. The bottom mold slider 9 is vertically slidable and mounted on the bottom mold support 5. A guide edge and a guide groove are usually provided between the bottom mold slider 9 and the bottom mold support 5. The guide edge can slide up and down and be inserted into the guide groove. The guide edge is provided on the bottom mold slider 9, and the guide groove is provided on the bottom mold support 5. The bottom mold 4 is fixed to the top of the bottom mold slider 9 and is located below the fixed-side mold 2 and the moving-side mold 3. The bottom mold support 5 is located on one side of the swing arm 6. 5 is installed with the mold base support 1. The locking element 14 in the mold locking mechanism is installed on the outer end of the fixed edge mold 2. After the swing arm 6 or the moving edge mold 3 swings, it can drive the bottom mold slider 9 to move the bottom mold 4 vertically on the bottom mold support 5 through the bottom mold lifting transmission mechanism. A cam 7 and a roller 8 are also provided. The cam 7 is fixed to the swing arm 6. The roller 8 is rotatably installed on the bottom mold support 5 around its own axis. The roller 8 abuts against the cam 7. When the cam 7 swings with the swing arm 6, the roller 8 can roll along the flange or groove on the cam 7. The edge or groove is composed of a short push section 92 and a long arc section 93. In this embodiment, the cam 7 is provided with a groove. When the roller 8 rolls on the push section 92, the push section 92 can drive the bottom mold support 5 to move the bottom mold 4 in the horizontal direction through the roller 8, so that the bottom mold 4 can be engaged with the bottom of the fixed edge mold 2 when the mold is closed or can be disengaged from the bottom of the fixed edge mold 2 when the mold is opened. When the roller 8 rolls on the arc section 93, the arc section 93 can make the bottom mold support 5 and the bottom mold 4 stop in the horizontal direction through the roller 8.During mold opening, the drive arm 6 swings the cam 7 forward. At this time, the moving mold 3, driven by the drive arm 6, rotates horizontally relative to the fixed mold 2 and disengages from the fixed mold 2 and the bottom mold 4. The bottom mold slider 9, driven by the drive arm 6 or the moving mold 3, lowers the bottom mold 4, allowing it to leave the bottom of the fixed mold 2 and the moving mold 3. Simultaneously, the bottom mold support 5, driven by the push section 92 on the cam 7, moves horizontally in the direction that allows the bottom mold 4 to disengage from the bottom of the fixed mold 2. After the bottom mold 4 and the fixed mold 2 are disengaged, the roller 8 enters the arc section 93 on the cam 7. Under the action of the arc section 93, the bottom mold support 5 and the bottom mold 4 remain stationary in the horizontal direction. When the bottom mold 4 is not disengaged from the moving mold 3 and the fixed mold 2, the height to which the bottom mold 4 is driven to descend is very small, thus not obstructing the movement of the bottom mold 4 and the moving mold 3. When the side mold 2 separates, and the bottom mold 4 separates from the moving side mold 3 and the fixed side mold 2, the bottom mold 4 is driven to accelerate downwards. During mold closing, the drive arm 6 swings the cam 7 in the opposite direction. At this time, the moving side mold 3, driven by the arm 6, rotates horizontally in the opposite direction to the fixed side mold 2 and aligns with it. The bottom mold slider 9, driven by the arm 6 or the moving side mold 3, lifts the bottom mold 4, allowing it to move between the bottom of the moving side mold 3 and the bottom of the fixed side mold 2. Simultaneously, due to the reverse swing of the cam 7, the roller 8 leaves the arc segment 93 on the cam 7 and enters the push stroke segment 92. Driven by the push stroke segment 92 on the cam 7, the bottom mold support 5 moves horizontally in the direction that allows the bottom mold 4 to engage with the bottom of the fixed side mold 2. Finally, as the moving side mold 3 and the fixed side mold 2 align, the bottom mold 4 is fitted between the bottom of the moving side mold 3 and the bottom of the fixed side mold 2.

[0024] In this embodiment, as Figure 1 , Figure 2 As shown, the structure of the bottom mold lifting transmission mechanism includes: a first connecting rod 10, a second connecting rod 11, a third connecting rod 12, and a fourth connecting rod 13. One end of the first connecting rod 10 is hinged to the outer end of the swing arm 6 via a joint bearing, and the other end of the first connecting rod 10 is hinged to the outer end of the second connecting rod 11 via a joint bearing. The inner end of the second connecting rod 11 and the lower end of the third connecting rod 12 are fixed together, and the fixed points of the two are hinged to the bottom mold support 5 via a hinge shaft. The upper end of the third connecting rod 12 and the lower end of the fourth connecting rod 13 are hinged together via a hinge shaft, and the upper end of the fourth connecting rod 13 is hinged to the bottom mold slider 9 via a hinge shaft. After the swing arm 6 swings horizontally, it can drive the second connecting rod 11 to rotate the third connecting rod 12 via the first connecting rod 10. After the third connecting rod 12 rotates, it can drive the bottom mold slider 9 to vertically lift and lower the bottom mold 4 on the bottom mold support 5 via the fourth connecting rod 13.

[0025] In actual production, such as Figure 3As shown, the structure of the bottom mold lifting transmission mechanism can also be as follows: including: a first connecting rod 10, a second connecting rod 11, a third connecting rod 12, a bottom mold cam 16, and a bottom mold roller 15. One end of the first connecting rod 10 is hinged to the outer end of the swing arm 6 via a spherical bearing, and the other end of the first connecting rod 10 is hinged to the outer end of the second connecting rod 11 via a spherical bearing. The inner end of the second connecting rod 11 and the lower end of the third connecting rod 12 are fixed together, and the fixed points of the two are hinged to the bottom mold support 5 via a hinge shaft. The upper end of the third connecting rod 12... One of the end mold and bottom mold slider 9 is equipped with a bottom mold roller 15 that can rotate around its own axis, and the other is equipped with a bottom mold cam 16. The bottom mold roller 15 abuts against the bottom mold cam 16, and the bottom mold roller 15 can roll along the flange or groove on the bottom mold cam 16. After the swing arm 6 swings horizontally, it can drive the second link 11 to rotate the third link 12 through the first link 10. After the third link 12 rotates, it can drive the bottom mold slider 9 to vertically raise and lower the bottom mold 4 through the cooperation of the bottom mold roller 15 and the bottom mold cam 16. Through design, the flange or groove contour on the bottom mold cam 16 allows the bottom mold 4 to stop moving without following the rotation of the moving side mold 3 after it has descended to the point between the bottom of the fixed side mold 2 and the bottom of the moving side mold 3 without affecting the bottle picking. This reduces the descent height of the bottom mold 4, making the blow molding station easier to seal and preventing fatigue damage to the sealing parts. More specifically, as can be seen from the figure, the bottom mold cam 16 is set on the bottom mold slider 9, the bottom mold roller 15 is set on the upper end of the third connecting rod 12, and the cam 16 is provided with grooves.

[0026] In this embodiment, as Figure 1 , Figure 2 As shown, the bottom mold support 5 is hinged to the mold frame support 1 via a hinge shaft. When the roller 7 rolls on the push section 92, the push section 92 can drive the bottom mold support 5 to swing horizontally around its hinge shaft with the mold frame support 1, carrying the bottom mold 4. Driven by the push section 92 on the cam 7, the bottom mold support 5 swings horizontally by 2° to 7° in a direction that allows the bottom mold 4 to disengage from the fixed-side mold 2, after which the bottom mold 4 can disengage from the fixed-side mold 2. The hinge axis of the bottom mold support 5 on the mold frame support 1 and the hinge axis of the moving-side mold 3 on the mold frame support 1 are on the split surface of the blow molding die obtained by mold closing, and are located on both sides of the center of the blow molding die. In actual production, the hinge axes of the bottom mold support 5 and the moving-side mold 3 on the mold frame support 1 can also be set to coincide.

[0027] In actual production, such as Figure 5As shown, the bottom mold support 5 can also be horizontally and linearly slidably mounted on the mold frame support 1 via guide rails. The sliding direction of the bottom mold support 5 is perpendicular to the split surface of the blow molding die obtained after mold closing. When the roller 7 rolls on the push section 92, the push section 92 can drive the bottom mold support 5 to slide horizontally and linearly with the bottom mold 4 via the roller 7. Driven by the push section 92 on the cam 7, the bottom mold support 5 slides horizontally and linearly for 3-10mm in the direction that can separate the bottom mold 4 from the fixed edge mold 2, after which the bottom mold 4 can separate from the fixed edge mold 2. This also achieves the function of separating or fitting the bottom mold 4 and the fixed edge mold 2.

Claims

1. A single-action bottle blowing mold station with easy-to-isolate sealing, comprising: The die frame support, the fixed side die, the movable side die, the bottom die, the bottom die support, the swing arm, the bottom die slider, and the bottom die lifting transmission mechanism are characterized in that: the locking member of the locking mechanism is installed on the outer end of the fixed side die; the swing arm or the movable side die can drive the bottom die slider to vertically move on the bottom die support with the bottom die through the bottom die lifting transmission mechanism after swinging; a cam and a roller are further provided, the cam is fixed to the swing arm, the roller is rotatably installed on the bottom die support, the roller abuts against the cam, the roller can roll along the flange or the groove on the cam when the cam swings with the swing arm, the flange or the groove on the cam is connected by a small push section and a large circular arc section, the push section can drive the bottom die support to move horizontally with the bottom die through the roller when the roller rolls on the push section, so that the bottom die can be embedded with the bottom of the fixed side die when the mold is closed or the bottom die can be separated from the bottom of the fixed side die when the mold is opened, and the circular arc section can make the bottom die support and the bottom die at rest in the horizontal direction through the roller when the roller rolls on the circular arc section.

2. The easily isolated sealed, single-action bottle blowing mold station according to claim 1, characterized in that: The structure of the bottom die lifting transmission mechanism comprises a first connecting rod, a second connecting rod, a third connecting rod, and a fourth connecting rod. One end of the first connecting rod is hingedly connected to the outer end of the swing arm through a joint bearing, the other end of the first connecting rod is hingedly connected to the outer end of the second connecting rod through a joint bearing, the inner end of the second connecting rod and the lower end of the third connecting rod are fixed, and the fixed parts thereof are hingedly connected to the bottom die support through a hinge shaft, the upper end of the third connecting rod is hingedly connected to the lower end of the fourth connecting rod through a hinge shaft, and the upper end of the fourth connecting rod is hingedly connected to the bottom die slider through a hinge shaft. The swing arm can drive the second connecting rod to rotate with the third connecting rod through the first connecting rod after horizontal swinging, and the third connecting rod can drive the bottom die slider to vertically lift the bottom die on the bottom die support through the fourth connecting rod after rotation.

3. The easily isolated sealed, single-action bottle blowing mold station of claim 1, wherein: The structure of the bottom die lifting transmission mechanism comprises a first connecting rod, a second connecting rod, a third connecting rod, a bottom die cam and a bottom die roller. One end of the first connecting rod is hingedly connected to the outer end of the swing arm through a joint bearing, the other end of the first connecting rod is hingedly connected to the outer end of the second connecting rod through a joint bearing, the inner end of the second connecting rod and the lower end of the third connecting rod are fixed, and the fixed positions of the two are hingedly connected to the bottom die support through a hinge shaft, one of the upper end of the third connecting rod and the bottom die slider is provided with the bottom die roller which can rotate around its own axis, and the other is provided with the bottom die cam, the bottom die roller abuts against the bottom die cam, and the bottom die roller can roll along the flange or groove on the bottom die cam. After the swing arm swings horizontally, the second connecting rod and the third connecting rod can be driven to rotate through the first connecting rod, and after the third connecting rod rotates, the bottom die slider and the bottom die can be driven to vertically lift through the cooperation of the bottom die roller and the bottom die cam.

4. The easily isolated sealed, single-action bottle blowing mold station according to claim 3, characterized in that: The bottom die cam is arranged on the bottom die slider, and the bottom die roller is arranged on the upper end of the third connecting rod.

5. The easily isolated sealed, single-action bottle blowing mold station of claim 3, wherein: The flange or groove profile on the bottom die cam can make the bottom die stop moving after descending to the space between the fixed edge die and the bottom of the movable edge die without affecting the bottle taking.

6. A readily quarantined sealed, single-action bottle blowing mold station according to claim 1 or 2 or 3 or 4 or 5, characterized in that: The bottom die support is hingedly connected to the die support through a hinge shaft, and when the roller rolls on the push stroke section, the push stroke section can drive the bottom die support to swing horizontally around the hinge shaft of the die support with the bottom die.

7. The easily isolated sealed, single-action bottle blowing mold station of claim 6, wherein: After the bottom die support swings horizontally 2°-7° in the direction that can make the bottom die separate from the fixed edge die under the drive of the push stroke section on the cam, the bottom die can separate from the fixed edge die.

8. The easily isolated sealed, single-action bottle blowing mold station of claim 6, wherein: The hinge axes of the bottom die support and the movable edge die on the die support coincide.

9. The easily isolated sealed, single-action bottle blowing mold station of claim 6, wherein: The hinge axes of the bottom die support and the movable edge die on the die support are on the center split surface of the blow molding die obtained after the mold closing, and are respectively located on both sides of the center of the blow molding die.

10. A readily quarantined sealed, single action bottle blowing mold station in accordance with claim 1 or 2 or 3 or 4 or 5 wherein: The bottom die support is linearly horizontally slidable and is arranged on the die support, the sliding direction of the bottom die support is perpendicular to the center split surface of the blow molding die obtained after the mold closing, and when the roller rolls on the push stroke section, the push stroke section can drive the bottom die support to linearly horizontally slide with the bottom die.

11. The easily quarantined sealed, single-action bottle blowing mold station of claim 10, wherein: After the bottom die support linearly horizontally slides 3-10 mm in the direction that can make the bottom die separate from the fixed edge die under the drive of the push stroke section on the cam, the bottom die can separate from the fixed edge die.

Citation Information

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