A bottom mold turning device for bottle blowing machine

Abstract

The present invention discloses a bottom mold flipping device for a bottle blowing machine, comprising a mold frame bracket, a bottom mold bracket, a swing arm connected to the mold frame bracket and rotatable around the axis of a first axis, a bottom mold swing rod connected to the bottom mold bracket and rotatable around the axis of a second axis, a space connecting rod with two ends respectively hinged to the swing arm and one end of the bottom mold swing rod through a joint bearing spherically fixed thereon, and a bottom mold fixed to the other end of the bottom mold swing rod; the second axis is arranged between the two ends of the bottom mold swing rod; when the mold is opened, the swing arm is used to drive the bottom mold swing rod to flip its other end around the axis of the second axis toward the bottle picking robot side. The present invention discloses a bottom mold flipping device for a bottle blowing machine, and the bottom mold can cooperate with the bottle picking robot to demould synchronously while flipping. In the same mold opening process, the bottom mold stroke is small, the acceleration of the bottom mold operation is small, the vibration and impact are relatively small, and the stability and reliability of the bottom mold movement are strong.

Description

Technical Field

[0001] The invention relates to the technical field of bottle blowing, in particular to a bottom mold turning device for a bottle blowing machine. Background Art

[0002] The bottle blowing machine is a key equipment for producing various liquid packaging containers. The bottle blowing machine has strict requirements for each process and high requirements for mutual coordination. The process of the bottom of the container leaving the bottom mold is very strict.

[0003] In the bottle-taking process of the traditional mechanism blow molding machine, after the mold is opened and closed at a certain angle, the bottom mold descends to the bottom of the container and completely disengages from the bottom mold, and then the bottle-taking robot takes out the container. In the traditional mechanism, in order to ensure the bottle-taking time, the time from the beginning of the bottom mold's descent to its complete separation from the container is short, the acceleration of the bottom mold when it descends is large, the bottom mold stroke is large, the vibration and impact are relatively large, and the stability and reliability of the bottom mold movement are poor. Summary of the invention

[0004] The purpose of the present invention is to provide a bottom mold flipping device for a bottle blowing machine, which can cooperate with a bottle-taking robot to demould synchronously while the bottom mold is flipped, and the demoulding is completed after the bottom mold is flipped into place. In the same mold opening process, the bottom mold stroke is small, the acceleration of the bottom mold operation is small, the vibration and impact are relatively small, and the stability and reliability of the bottom mold movement are strong.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is:

[0006] A bottom mold turning device for a bottle blowing machine comprises a mold frame support, a bottom mold support fixedly connected to the mold frame support, a swing arm connected to the mold frame support rotatably around the axis center line direction of a first axis, a bottom mold swing rod connected to the bottom mold support rotatably around the axis center line direction of a second axis, a space connecting rod with two ends respectively hinged to the swing arm and one end of the bottom mold swing rod through a spherical surface of a joint bearing fixedly connected thereto, and a bottom mold fixedly connected to the other end of the bottom mold swing rod; the second axis is arranged between the two ends of the bottom mold swing rod;

[0007] When the mold is opened, the swing arm is used to drive the bottom mold swing rod so that the other end of the bottom mold swing rod turns around the axis line direction of the second axis toward the bottle picking robot side.

[0008] Preferably, the first axis extends in a vertical direction and is perpendicular to the second axis.

[0009] Preferably, the first axis is rotatable around its own axis centerline and is arranged in the mold frame bracket; the device also includes a swing rod fixedly connected to the first axis, a first side mold and a second side mold rotatable around the axis centerline of a third axis and connected to the mold frame bracket and used for opening and closing the mold in cooperation with each other, a first connecting rod rotatably connected to the swing rod and the first side mold at both ends, and a second connecting rod rotatably connected to the swing arm and the second side mold at both ends;

[0010] The swing arm is fixedly connected to the first shaft. When the first side mold and the second side mold are opened relative to each other, the swing arm is also used to synchronously drive the bottom mold swing rod so that the other end thereof flips around the axis line direction of the second shaft toward the bottle picking robot side.

[0011] More preferably, the third axis extends in a vertical direction, is parallel to the first axis, and is perpendicular to the second axis.

[0012] More preferably, the flipping trajectory of the bottom mold center and the axis line of the third axis are located in the same plane.

[0013] More preferably, one end of the first connecting rod and the second connecting rod are coaxially rotatably connected to the swing rod.

[0014] Preferably, a forming spherical surface is provided on the top of the bottom mold.

[0015] Preferably, a molding ring is provided on the top of the bottom mold.

[0016] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art: the present invention provides a bottom mold flipping device for a bottle blowing machine, and the bottom mold can cooperate with a bottle-taking robot to demould synchronously while flipping, and the demoulding is completed after flipping into place. The problem that the bottom mold in the traditional mechanism needs to be completely separated from the bottle body before the bottle body can be taken out is solved. In the same mold opening process, the bottom mold stroke is small, the acceleration of the bottom mold operation is small, the vibration and impact are relatively small, the stability and reliability of the bottom mold movement are strong, which is conducive to improving the operating speed of the whole machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Attached Figure 1 It is a structural schematic diagram of the device of the present invention;

[0018] Attached Figure 2 It is a structural schematic diagram of the bottom mold in the mold closing state;

[0019] Attached Figure 3 It is a structural schematic diagram of the bottom mold in the open mold state.

[0020] Among them: 1. mold frame bracket; 2. bottom mold bracket; 3. first axis; 4. swing arm; 5. second axis; 6. bottom mold swing rod; 7. space connecting rod; 8. bottom mold; 9. forming sphere; 10. swing rod; 11. third axis; 12. first side mold; 13. second side mold; 14. first connecting rod; 15. second connecting rod. DETAILED DESCRIPTION

[0021] The technical solution of the present invention is further described below in conjunction with the accompanying drawings.

[0022] See also Figure 1-3 As shown, the above-mentioned bottom mold turning device of the bottle blowing machine includes a mold frame bracket 1, a bottom mold bracket 2 fixedly connected to the mold frame bracket 1, a first axis 3 arranged in the mold frame bracket 1 and rotatable around its own axis center line direction, a swing arm 4 fixedly connected to the first axis 3, a bottom mold swing rod 6 connected to the bottom mold bracket 2 and rotatable around the axis center line direction of the second axis 5, a spatial connecting rod 7 with both ends spherically hinged to the swing arm 4 and one end of the bottom mold swing rod 6 through joint bearings fixedly connected thereto, and a bottom mold 8 fixedly connected to the other end of the bottom mold swing rod 6.

[0023] In this embodiment, the first axis 3 extends in the vertical direction and is perpendicular to the second axis 5. That is, the motion plane of the swing arm 4 and the motion plane of the bottom mold swing rod 6 are perpendicular to each other. The second axis 5 is arranged between the two ends of the bottom mold swing rod 6. Figure 1 As shown, the portion of the bottom mold swing rod 6 located above the second axis 5 and the portion located below the second axis 5 form an angle with each other, and the opening direction thereof is away from the spatial connecting rod 7. The bottom mold swing rod 6 is located on the left side of the right end of the spatial connecting rod 7. The bottom mold 8 is higher than the second axis 5, and the end of the bottom mold swing rod 6 spherically hinged on the spatial connecting rod 7 is lower than the second axis 5.

[0024] A molding mechanism for cooperating with the bottom molding of the bottle blank is provided at the top of the bottom mold 8. The molding mechanism may be a plane. In the present embodiment, the molding mechanism is a molding spherical surface 9 convexly provided on the top of the bottom mold 8, and the molding spherical surface 9 is integrally formed with the bottom mold 8. When the bottle blank is blown into shape in the mold, the molding spherical surface 9 is used to be attached to the bottom of the bottle body for cooperation. In another embodiment, the molding mechanism is a molding ring convexly provided on the top of the bottom mold 8, and the molding ring is integrally formed with the bottom mold 8. When the bottle blank is blown into shape in the mold, the molding ring is used to be provided on the bottom side of the bottle body for cooperation. In other embodiments, the molding mechanism may also be formed by a combination of the molding spherical surface 9 and the molding ring.

[0025] See also Figure 1As shown, a cam rotor is connected to the bottom of the swing arm 4, and the cam rotor rolls on the cam guide rail to achieve regular swinging of the swing arm 4. When opening the mold, the swing arm 4 is used to drive the bottom mold swing rod 6 through the spatial connecting rod 7 so that the other end of the swing arm 4 flips around the axial direction of the second axis 5 toward the bottle picking robot (not shown in the figure). Through this setting, the bottle picking robot can synchronously pull the bottle body to the side while flipping. By controlling the movement of the bottle picking robot, interference between the bottle picking process and the flipping process of the bottom mold 8 can be prevented. The bottle picking path of the bottle picking robot extends along a horizontal curve, that is, Figure 2-3 In the direction from left to right.

[0026] The above-mentioned bottom mold turning device of the bottle blowing machine also includes a swing rod 10 fixedly connected to the first shaft 3, a first side mold 12 and a second side mold 13 which are rotatably connected to the mold frame support 1 around the axis direction of the third shaft 11 and are used for opening and closing the mold in cooperation with each other, a first connecting rod 14 whose two ends are rotatably connected to the swing rod 10 and the first side mold 12, and a second connecting rod 15 whose two ends are rotatably connected to the swing arm 4 and the second side mold 13. In this embodiment, the third shaft 11 is parallel to the first shaft 3. One end of the first connecting rod 14 and the second connecting rod 15 are coaxially rotatably connected to the swing rod 10.

[0027] In this embodiment, when the swing arm 4 swings forward (the swing rod 10 rotates close to the first side mold 12 and the second side mold 13), the first connecting rod 14 and the second connecting rod 15 are relatively opened, driving the first side mold 12 and the second side mold 13 to close relatively for mold closing; when the swing arm 4 swings backward (the swing rod 10 rotates away from the first side mold 12 and the second side mold 13), the first connecting rod 14 and the second connecting rod 15 are relatively close to each other, driving the first side mold 12 and the second side mold 13 to open relatively for mold opening.

[0028] The swing arm 4 is used to drive the first side mold 12 and the second side mold 13 to open relatively, and is also used to synchronously drive the bottom mold swing rod 6 to make its other end flip around the axis direction of the second axis 5 toward the bottle picking robot side, so that the bottle picking robot can synchronously pick up the bottle.

[0029] The turning trajectory of the center of the bottom mold 8 and the axis of the third axis 11 are located in the same plane. The bottle picking robot and the third axis 11 are respectively arranged on opposite sides of the bottom mold 8. Through this arrangement, the bottom mold 8 turns toward the center of the opening of the first side mold 12 and the second side mold 13, shortening the stroke of the bottle picking robot. It is convenient for the bottle picking robot to take the bottle body out of the mold cavity as quickly as possible, that is, when the gap between the first side mold 12 and the second side mold 13 is slightly larger than the outer diameter of the bottle body, the bottle body can be taken out from the gap by the bottle picking robot.

[0030] The first side mold 12 and the second side mold 13 are regarded as one, and the bottom mold 8 is regarded as the other. One of the two is provided with a wedge-shaped ring groove, and the other is provided with a wedge-shaped clamping ring for clamping into the wedge-shaped ring groove. The wedge-shaped ring groove and the wedge-shaped clamping ring are clearance-fitted.

[0031] When the mold is opened, the displacement of the bottom mold 8 in the vertical direction is smaller than the gap between the wedge-shaped clamp ring and the wedge-shaped ring groove, forming an approximate rest period in the vertical direction of the bottom mold 8. After the wedge-shaped ring groove and the wedge-shaped clamp ring are completely separated, the bottom mold 8 is flipped sideways while the bottle picking robot moves to pick up the bottle, and the bottle picking robot picks up the bottle.

[0032] When closing the mold, the bottom mold 8 is turned back to a nearly vertical direction, at which time the wedge-shaped snap ring can enter the wedge-shaped ring groove. After the wedge-shaped snap ring enters the wedge-shaped ring groove, the vertical displacement of the bottom mold 8 is smaller than the gap between the wedge-shaped snap ring and the wedge-shaped ring groove, forming an approximate rest period of the bottom mold 8 in the vertical direction.

[0033] The working process of this embodiment is described in detail below:

[0034] See also Figure 2-3 As shown:

[0035] When opening the mold, the swing arm 4 swings in the opposite direction to drive the first side mold 12 and the second side mold 13 to open relatively to open the mold; after the wedge-shaped ring groove and the wedge-shaped clamping ring are completely separated, the spatial connecting rod 7 drives the bottom mold 8 to flip clockwise. At this time, the bottle-taking robot takes the bottle to the right in a horizontal direction. When the bottom mold 8 is flipped to be completely separated from the bottom of the bottle body, the bottle-taking robot takes the bottle body out of the mold cavity;

[0036] When closing the mold, the swing arm 4 swings forward to drive the first side mold 12 and the second side mold 13 to close relatively to close the mold; at the same time, the bottom mold 8 is driven to flip counterclockwise to nearly vertical through the spatial connecting rod 7 until the wedge-shaped clamping ring enters the wedge-shaped ring groove.

[0037] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with this technology to understand the content of the present invention and implement it. They cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A bottom mold turning device for a bottle blowing machine, characterized in that: It comprises a mold frame bracket, a bottom mold bracket fixedly connected to the mold frame bracket, a swing arm connected to the mold frame bracket rotatably around the axis center line direction of a first axis, a bottom mold swing rod connected to the bottom mold bracket rotatably around the axis center line direction of a second axis, a space connecting rod with two ends respectively hinged to the swing arm and one end of the bottom mold swing rod through a spherical surface of a joint bearing fixedly connected thereto, and a bottom mold fixedly connected to the other end of the bottom mold swing rod; the second axis is arranged between the two ends of the bottom mold swing rod; when opening the mold, the swing arm is used to drive the bottom mold swing rod to make the other end of the bottom mold swing rod flip around the axis center line direction of the second axis toward the bottle picking robot side; The first axis extends in a vertical direction and is perpendicular to the second axis; The first axis can rotate around its own axis centerline direction and is arranged in the mold frame bracket; the device also includes a swing rod fixedly connected to the first axis, a first side mold and a second side mold connected to the mold frame bracket and can rotate around the axis centerline direction of a third axis and used for opening and closing the mold in cooperation with each other, a first connecting rod with two ends respectively connected to the swing rod and the first side mold, and a second connecting rod with two ends respectively connected to the swing arm and the second side mold.

2. A bottom mold turning device for a bottle blowing machine according to claim 1, characterized in that: The swing arm is fixedly connected to the first shaft. When the first side mold and the second side mold are opened relative to each other, the swing arm is also used to synchronously drive the bottom mold swing rod so that the other end thereof flips around the axis line direction of the second shaft toward the bottle picking robot side.

3. A bottom mold turning device for a bottle blowing machine according to claim 2, characterized in that: The third axis extends in a vertical direction, is parallel to the first axis, and is perpendicular to the second axis.

4. A bottom mold turning device for a bottle blowing machine according to claim 2, characterized in that: The turning trajectory of the bottom mold center and the axis line of the third axis are located in the same plane.

5. The bottom mold turning device of a bottle blowing machine according to claim 2, characterized in that: One end of the first connecting rod and the second connecting rod is coaxially rotatably connected to the swing rod.

6. The bottom mold turning device of a bottle blowing machine according to claim 1, characterized in that: The top of the bottom mold is provided with a forming spherical surface.

7. The bottom mold turning device of a bottle blowing machine according to claim 1, characterized in that: A molding ring is arranged on the top of the bottom mold.

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