Injection molding plastic bottle discharging mechanism

Abstract

According to the injection-molded plastic bottle discharging mechanism, a plurality of retention claws are arranged on the front side of a grabbing arm at equal intervals, a plurality of movable claws are arranged at the positions, corresponding to the left sides of the retention claws, of the grabbing arm, and the adjacent retention claws and the movable claws are matched with each other to grab plastic bottles. The top of the grabbing arm is further provided with a position control mechanism used for adjusting and controlling the distance between the movable claw and the position fixing claw. The fixed claw and the movable claw are arranged on the grabbing arm, and the stroke of the movable claw is adjusted through the position control mechanism, so that the size of a gap between the fixed claw and the movable claw is adjusted, and the grabbing arm can grab plastic bottles with different specifications and sizes; and the adaptive capacity of the grabbing arm is greatly improved, and great convenience is brought to transferring of the plastic bottles.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic bottle production tooling, in particular to a blanking mechanism for injection-molded plastic bottles. Background Technique

[0002] Plastic bottles are a kind of liquid container that can be seen everywhere in our daily life and are closely related to our life. When producing plastic bottles, the heated plastic blanks need to be placed into the mold, and then the plastic blanks are blow-molded by a blowing device, so that the plastic blanks form the required plastic bottles in the cavity of the mold. After the plastic bottles are formed, subsequent operations such as shaping, inspection, and packing are required. When the plastic bottles are transferred between various devices, a blanking mechanism is needed to grab the plastic bottles. At present, most of the grabbing devices in plastic bottle production workshops are claw-shaped structures. The most common one is to grab and transfer plastic bottles through two grab bars. Generally, the two grab bars move synchronously to grab, or one grab bar is fixed in position and the other grab bar moves to grab. However, for the existing blanking mechanisms with various grab bar structures, the moving distance of the grab bars is generally fixed, which results in a type of blanking mechanism that can only grab plastic bottles of specific sizes. Since there are various styles of plastic bottles, the blanking mechanism cannot adapt to more plastic bottle grabbing operations. Content of the Utility Model

[0003] The purpose of the utility model is to avoid the deficiencies of the prior art and provide a blanking mechanism for injection-molded plastic bottles, so as to effectively solve the deficiencies existing in the prior art.

[0004] To achieve the above purpose, the technical solution adopted by the utility model is: a blanking mechanism for injection-molded plastic bottles, including a grabbing arm. A number of retaining claws are equidistantly arranged on the front side of the grabbing arm. A number of movable claws are arranged on the grabbing arm at positions corresponding to the left sides of the respective retaining claws. The adjacent retaining claws and movable claws cooperate with each other to grab the plastic bottles. A position control mechanism for regulating the distance between the movable claws and the retaining claws is further arranged at the top of the grabbing arm.

[0005] Further, the position control mechanism includes an L-shaped movable seat arranged between a corresponding group of retaining claws and movable claws. The movable seat can move left and right along the grabbing arm. A proximity switch is arranged on the vertical plate of the movable seat. The sensing end of the proximity switch faces left. A vertical rod is arranged on the movable claw corresponding to the position of the proximity switch. A horizontal plate suspended above the grabbing arm is arranged on the vertical rod. An induction block is arranged on the right side of the horizontal plate at a position corresponding to the sensing end of the proximity switch.

[0006] Further, a slide rail is arranged at the top of the grabbing arm at a position corresponding to a group of movable claws and retaining claws. A slider is arranged on the slide rail. The movable seat is installed on the top of the slider.

[0007] Further, a retaining screw is also provided on the slider. The lower end of the retaining screw passes through the slider and abuts against the slide rail, and a lever is provided at the upper end of the retaining screw.

[0008] Further, a movable groove is transversely provided inside the grasping arm, and a movable rod is arranged in the movable groove. One end of the movable rod extends outwards from the grasping arm, and movable notches are also provided on the grasping arm at positions corresponding to the respective movable claws. The movable claws move left and right along the movable notches under the drive of the movable rod.

[0009] Further, a driving cylinder is provided at the rear side of the grasping arm. The piston rod of the driving cylinder is arranged towards one end of the movable rod outside the grasping arm, and the end of the piston rod is connected to the movable rod through a connecting plate. The driving cylinder controls the left and right movement of the movable rod in the movable groove by controlling the telescopic movement of the piston rod.

[0010] Further, the movable claw is fixedly connected to the movable rod through a joint, and the joint is arranged in the movable notch.

[0011] Further, a protective pad is provided on one side of each group of the movable claws and the retaining claws facing each other, and serrated anti-slip patterns are provided on the surface of the protective pad.

[0012] The above technical solution of the present utility model has the following beneficial effects: By providing the retaining claws and the movable claws on the grasping arm, and then adjusting the stroke of the movable claws through the position control mechanism, the adjustment of the gap size between the retaining claws and the movable claws is realized. Furthermore, the grasping arm can grasp plastic bottles of different specifications and sizes, greatly improving the adaptability of the grasping arm, which brings great convenience to the transportation of plastic bottles. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic top - plan structural view of an embodiment of the present utility model;

[0014] Figure 2 is Figure 1 an enlarged view of part A in

[0015] Figure 3 is a schematic top - sectional structural view of an embodiment of the present utility model;

[0016] Figure 4 is a schematic front - plan structural view of an embodiment of the present utility model;

[0017] Figure 5 is Figure 4 an enlarged view of part B in DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] In order to more clearly understand the above-mentioned objects, features and advantages of the present utility model, the present utility model will be further described in detail below in conjunction with the drawings and specific embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0019] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present utility model is not limited by the specific embodiments disclosed below.

[0020] As Figures 1-5 shown, the feeding mechanism for an injection-molded plastic bottle in this embodiment includes a grasping arm 1. A number of retaining claws 2 are equidistantly arranged on the front side of the grasping arm 1. A number of movable claws 3 are arranged on the grasping arm 1 at positions corresponding to the left sides of the respective retaining claws 2. The adjacent retaining claws 2 and movable claws 3 cooperate with each other to grasp the plastic bottle. A position control mechanism for adjusting the distance between the movable claws 3 and the retaining claws 2 is further arranged at the top of the grasping arm 1.

[0021] The position control mechanism includes an L-shaped movable seat 4 arranged between a corresponding set of retaining claws 2 and movable claws 2. The movable seat 4 can move left and right along the grasping arm 1. A proximity switch 5 is arranged on the vertical plate of the movable seat 4, and the sensing end of the proximity switch 5 is arranged towards the left. A vertical rod 6 is arranged on the movable claw 3 corresponding to the position of the proximity switch 5. A horizontal plate 7 suspended above the grasping arm 1 is arranged on the vertical rod 6. An induction block 8 is arranged on the right side of the horizontal plate 7 at a position corresponding to the sensing end of the proximity switch 5.

[0022] A slide rail 9 is arranged at the top of the grasping arm 1 at a position corresponding to a set of movable claws 3 and retaining claws 2. A slider 10 is arranged on the slide rail 9. The movable seat 4 is installed on the top of the slider 10.

[0023] A retaining screw 11 is further arranged on the slider 10. The lower end of the retaining screw 11 passes through the slider 10 and abuts against the slide rail 9. A lever 12 is arranged at the upper end of the retaining screw 11.

[0024] By manipulating the lever 12, the retaining screw 11 can be controlled to rotate, and then the retaining screw 11 is controlled to abut against the slide rail 9, so as to fix the position of the slider 10.

[0025] An activity groove 1a is arranged horizontally inside the grasping arm 1. An activity rod 13 is arranged in the activity groove 1a. One end of the activity rod 13 extends outwards from the grasping arm 1. Activity notches 1b are further arranged on the grasping arm 1 at positions corresponding to the respective movable claws 3. The movable claws 3 move left and right along the activity notches 1b under the drive of the activity rod 13.

[0026] A driving cylinder 14 is arranged on the rear side of the grasping arm 1. The piston rod of the driving cylinder 14 is arranged towards the end of the movable rod 13 outside the grasping arm 1. The end of the piston rod is connected to the movable rod 13 through a connecting plate 15. The driving cylinder 14 controls the left and right movement of the movable rod 13 in the movable groove 1a by controlling the telescopic movement of the piston rod, and further controls the synchronous movement of each movable claw 3 towards the corresponding retaining claw 2. Finally, under the cooperation of the movable claw 3 and the retaining claw 2, the plastic bottle is grasped.

[0027] The movable claw 3 is fixedly connected to the movable rod 13 through a joint 16, and the joint 16 is arranged in the movable notch 1b.

[0028] A protective pad 17 is arranged on the opposite side of each group of movable claws 3 and retaining claws 2. The surface of the protective pad 17 is provided with serrated anti-slip lines 18. The protective pad 17 is used to prevent the movable claws 3 and the retaining claws 2 from scratching the plastic bottle, and the anti-slip lines 18 are used to prevent the plastic bottle from falling off.

[0029] The working principle of the utility model is as follows: The grasping arm 1 is installed on the grasping tooling, so as to control the overall position movement of the grasping arm 1. The grasping arm 1 is moved to the position of the plastic bottle. According to the size of the plastic bottle, the slider 10 is controlled to move on the slide rail 9, so as to adjust the position of the proximity switch 5 on the movable seat 4. When the proximity switch 5 is fixed close to the induction block 8, after the movable claw 3 makes a short-distance displacement, the induction block 8 on it will contact the induction end of the proximity switch 5. That is, the closer the proximity switch 5 is to the induction block 8, the larger the distance between the movable claw 3 and the retaining claw 2 will be. On the contrary, the farther the proximity switch 5 is from the induction block 8, the longer the grasping stroke of the movable claw 3 will be, so that the distance between the movable claw 3 and the retaining claw 2 will become smaller. In this way, the gap between the movable claw 3 and the retaining claw 2 can be adjusted to adapt to the grasping work of plastic bottles of different specifications. Since the fixed position of the proximity switch 5 is adapted to the specification size of the plastic bottle, when the movable claw 3 and the retaining claw 2 cooperate to grasp the plastic bottle, the induction block 8 on the movable claw 3 will contact the induction end of the proximity switch 5, thereby triggering the proximity switch 5 and causing it to send out a signal for control. At this time, the driving cylinder 14 pauses working, so as to keep the grasping action of the movable claw 3 and the retaining claw 2. At the same time, the grasping tooling controls the entire grasping arm 1 to move, so as to move the plastic bottle to the corresponding working station. Subsequently, after the grasped plastic bottle is put down, the grasping arm 1 moves to the grasping position again to re-grasp the plastic bottle, and the driving cylinder 14 will also control the movable rod 13 to move towards the outside of the grasping arm 1 again, so that the movable claw 3 moves towards the side away from the retaining claw 2. The grasping arm repeats the grasping operation in this way.

[0030] The embodiments of the present utility model are given for purposes of illustration and description, and are not exhaustive or limit the present utility model to the disclosed forms. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are chosen and described in order to better explain the principles of the present utility model and its practical applications, and to enable those of ordinary skill in the art to understand the present utility model and design various embodiments with various modifications suitable for specific purposes.

Claims

1. A feeding mechanism for injection-molded plastic bottles, characterized in that: It comprises a grabbing arm, which has a plurality of retaining claws equidistantly arranged on its front side, and a plurality of movable claws are arranged on the grabbing arm at positions corresponding to the left sides of each of the retaining claws, and the adjacent retaining claws and movable claws cooperate with each other to grab the plastic bottle, and a position control mechanism for adjusting the distance between the movable claws and the retaining claws is also arranged on the top of the grabbing arm.

2. The injection molding plastic bottle feeding mechanism according to claim 1, characterized in that: The position control mechanism includes an L-shaped movable seat arranged between a corresponding group of fixing claws and movable claws, the movable seat can move left and right along the grabbing arm, and the movable seat is provided with a proximity switch on its vertical plate, the sensing end of the proximity switch is arranged to the left, and a vertical pole is arranged on the movable claw corresponding to the position of the proximity switch, and a horizontal plate suspended above the grabbing arm is arranged on the vertical pole, and a sensing block is arranged on the right side of the horizontal plate at a position corresponding to the sensing end of the proximity switch.

3. The injection molding plastic bottle feeding mechanism according to claim 2, characterized in that: A slide rail is arranged on the top of the grabbing arm at a position corresponding to a group of movable claws and a retaining claw, a sliding block is arranged on the slide rail, and the movable seat is installed on the top of the sliding block.

4. The injection molding plastic bottle feeding mechanism according to claim 3, characterized in that: The sliding block is also provided with a retaining screw, the lower end of which passes through the sliding block and is pressed against the sliding rail, and the upper end of which is provided with a shifting rod.

5. The injection molding plastic bottle feeding mechanism according to claim 4, characterized in that: A movable groove is laterally arranged along the inner edge of the grabbing arm, a movable rod is arranged in the movable groove, one end of the movable rod extends to the outside of the grabbing arm, and a movable notch is also arranged on the grabbing arm at the position corresponding to each movable claw, and the movable claw moves left and right along the movable notch under the drive of the movable rod.

6. The injection molding plastic bottle feeding mechanism according to claim 5, characterized in that: A driving cylinder is arranged on the rear side of the grabbing arm, and the piston rod of the driving cylinder is arranged toward one end of the movable rod located outside the grabbing arm. The end of the piston rod is connected to the movable rod through a connecting plate. The driving cylinder controls the movable rod to move left and right in the movable groove by controlling the extension and retraction of the piston rod.

7. The injection molding plastic bottle feeding mechanism according to claim 6, characterized in that: The movable claw is fixedly connected to the movable rod via a joint, and the joint is arranged in the movable notch.

8. The injection molding plastic bottle feeding mechanism according to claim 7, characterized in that: Each group of the movable claws and the retaining claws is provided with a protective pad on one side opposite to each other, and the surface of the protective pad is provided with a serrated anti-skid pattern.

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