Special clamp for robot to take bottle preform out of mold

Abstract

The utility model relates to a special fixture for a robot to take a bottle preform for demolding, which belongs to the technical field of bottle preform fixtures and comprises a flange, a fixing column is fixed at the bottom of the flange, a connecting plate is fixed at the bottom of the fixing column, a connecting plate is fixed on the left side of the connecting plate, and a vacuum machine is fixed on the left side of the connecting plate. A clamping assembly is arranged on the right side of the connecting plate. According to the special clamp for the robot to take out the bottle preform from the mold, sealing is conducted through a sealing gasket and the bottle preform, so that sealing in the bottle preform is achieved, gas in the bottle preform is extracted through an air extraction channel through a vacuum machine, the bottle preform and the preform taking head are locked, communication of an annular notch and an air passing hole is achieved through sliding of the preform taking head when the bottle preform is placed, and mold stripping is achieved. And therefore, rapid air exhaust in the bottle preform is achieved, rapid separation of the bottle preform is facilitated, the situation that the beat of the device is affected due to the fact that the bottle preform does not fall off is prevented, the use stability of the device is improved, and the use effect of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of bottle preform clamping technology, specifically a special clamping device for robots to pick up bottle preforms from the mold. Background Technology

[0002] Bottle preform molds are used to make bottles. They usually consist of a mold body and a mold core. Robots are often used to clamp and demold the bottle preforms.

[0003] For example, the Chinese patent (publication number: CN220482540U) describes an automatic preform removal device, which includes a robot and a suction fixture. The suction fixture includes a base plate and multiple preform suction units. The robot is fixedly connected to the bottom surface of the base plate. Each suction unit includes a suction rod and a spring sleeve. The bottom of the suction rod is installed in a suction unit mounting hole in the base plate. The airflow channel inside the suction rod opens at the bottom of the suction rod and at the upper side of the suction rod. The spring sleeve is fitted over the suction rod and can move up and down a certain distance. The outer wall of the spring sleeve has a spring pad for contacting the bottle mouth of the preform. A spring is axially located between the spring sleeve and the suction rod. Under the action of the spring, the spring sleeve covers the upper opening of the airflow channel. Under the action of external force, the spring sleeve can be moved down to expose the upper opening of the airflow channel. The suction fixture of this application does not contact the inner or outer wall of the preform during the suction process and does not damage the preform. This application uses a robot to automatically remove multiple preforms at once, which is highly efficient.

[0004] However, in actual use, the preforms often fail to detach during the robot's return trip due to untimely vacuum breaking and excessively long vacuum generator reaction time. This severely affects the preform picking rhythm and damages the suction clamp, impacting the equipment's lifespan. To address these issues, this utility model provides a special clamp for robot preform removal from the mold. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a special fixture for robots to remove preforms from the mold, which has advantages such as good preform removal effect and solves the problem of untimely preform removal.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a special fixture for robot preform removal from mold, comprising a flange, a fixing post fixed to the bottom of the flange, a connecting plate fixed to the bottom of the fixing post, a connecting plate fixed to the left side of the connecting plate, a vacuum machine fixed to the left side of the connecting plate, and a clamping assembly provided on the right side of the connecting plate.

[0007] The clamping assembly includes a suction cup fixing rod fixed to the right side of the connecting plate, a blank-picking head slidably connected to the outside of the suction cup fixing rod, a sealing plate fixed to the outside of the suction cup fixing rod, a spring fixed to the sealing plate on the left side of the blank-picking head, the spring being wound around the outside of the suction cup fixing rod, and a sealing gasket fixed to the outside of the blank-picking head.

[0008] Furthermore, an air extraction channel is provided on the inner side of the suction cup fixing rod, and an air extraction hole communicating with the air extraction channel is provided on the right side of the suction cup fixing rod.

[0009] Furthermore, the suction cup fixing rod is provided with an air passage hole that communicates with the air extraction channel, and the inner side of the embryo taking head is provided with an annular groove that communicates with the air passage hole.

[0010] Furthermore, four air outlets are provided on the outer side of the embryo-taking head, and the air outlets are connected to the annular groove.

[0011] Furthermore, a sliding opening is provided on the inner side of the embryo-retrieving head, and the embryo-retrieving head is slidably connected to the suction cup fixing rod through the sliding opening.

[0012] Furthermore, an air passage chamber is provided on the left side of the connecting plate, and the connecting plate is fixed above the air passage chamber.

[0013] Furthermore, the connecting plate has an air passage hole that communicates with the air passage chamber and is connected to the air extraction channel.

[0014] Furthermore, the clamping components are in four groups, and each group of clamping components is evenly and equidistantly distributed in an array on the connecting plate.

[0015] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0016] This specialized fixture for robotic preform removal seals the preform with a sealing gasket, thus sealing the interior of the preform. A vacuum pump then extracts the gas inside the preform through a suction channel, locking the preform to the removal head. The sliding of the removal head during preform placement connects the annular groove to the vent, enabling rapid evacuation of the preform. This facilitates quick preform detachment, preventing the preform from failing to detach and affecting the device's cycle time. This improves the stability and overall performance of the device. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a front view structural diagram of the present invention;

[0019] Figure 3This is a frontal cross-sectional view of the present invention.

[0020] Figure 4 This is a cross-sectional three-dimensional structural diagram of the clamping component of this utility model.

[0021] In the diagram: 1 Flange, 2 Fixing post, 3 Connecting plate, 4 Connecting plate, 5 Vacuum machine, 6 Clamping assembly, 601 Suction cup fixing rod, 602 Embedding head, 603 Air extraction hole, 604 Spring, 605 Sealing plate, 606 Sealing gasket, 607 Annular groove. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1 to 3 In this embodiment, a special fixture for robot to pick up bottle preforms from the mold includes a flange 1, a fixing post 2 fixed to the bottom of the flange 1, a connecting plate 3 fixed to the bottom of the fixing post 2, a connecting plate 4 fixed to the left side of the connecting plate 3, and an air passage hole communicating with the air passage chamber on the connecting plate 3.

[0024] Understandably, the inclusion of an air chamber facilitates the regulation of the gas within each group of preforms via vacuum pump 5, thereby improving the efficiency of preform placement, reducing the need for vacuum pump 5, lowering production costs, and enhancing the overall performance of the device.

[0025] It is also understandable that the air passage is connected to the air extraction channel, the air passage chamber is opened on the left side of the connecting plate 3, the connecting plate 4 is fixed above the air passage chamber, the vacuum machine 5 is fixed on the left side of the connecting plate 4, and the clamping assembly 6 is provided on the right side of the connecting plate 3. There are four sets of clamping assemblies 6, and each set of clamping assemblies 6 is evenly and equidistantly distributed in an array on the connecting plate 3.

[0026] In this embodiment, the clamping components 6 are evenly and equidistantly distributed, which facilitates adaptation with the preform and thus improves production efficiency. The connecting plate 4 helps to seal the gas chamber, which in turn helps to ensure the stable use of the overall device.

[0027] Please see Figure 4In order to achieve rapid removal of preforms, the clamping assembly 6 in this embodiment includes a suction cup fixing rod 601 fixed to the right side of the connecting plate 3. A preform removal head 602 is slidably connected to the outer side of the suction cup fixing rod 601. A sliding opening is provided on the inner side of the preform removal head 602. The preform removal head 602 is slidably connected to the suction cup fixing rod 601 through the sliding opening. An air extraction channel is provided on the inner side of the suction cup fixing rod 601.

[0028] It should be noted that the design of the air extraction channel facilitates the connection between the air passage chamber and the inside of the bottle, thereby enabling the control of the air inside the bottle, facilitating the function of the clamp to remove the preform, and improving the overall stability of use. The design of the sliding port facilitates the stable sliding of the preform removal head 602, thereby further improving the overall stability of use.

[0029] The suction cup fixing rod 601 has an air extraction hole 603 on the right side that communicates with the air extraction channel. A sealing plate 605 is fixed on the outside of the suction cup fixing rod 601. A spring 604 fixed to the sealing plate 605 is fixed on the left side of the blank taking head 602. The spring 604 is wrapped around the outside of the suction cup fixing rod 601.

[0030] The spring 604 provides support for the preform removal head 602, which facilitates the connection between the air outlet and the air extraction channel when placing the preform. This allows for the filling of the preform with air through multiple holes, which in turn facilitates the rapid detachment of the preform and improves the overall performance.

[0031] It can be observed that a sealing gasket 606 is fixed on the outer side of the embryo-taking head 602, an air passage hole communicating with the air extraction channel is opened on the suction cup fixing rod 601, an annular groove 607 communicating with the air passage hole is opened on the inner side of the embryo-taking head 602, and four air outlets are opened on the outer side of the embryo-taking head 602, and the air outlets are connected to the annular groove 607.

[0032] In this embodiment, by setting the annular groove 607 and the air outlet, the gas enters the annular groove 607 and is discharged in multiple directions, thereby quickly filling the inside of the preform with gas. This facilitates the rapid detachment of the preform, improves the performance of the clamp, and ultimately enhances the overall performance of the device.

[0033] All electrical components mentioned in this article are electrically connected to the controller and power supply. The control method of this utility model is controlled by the controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the art. Furthermore, this utility model is mainly used to protect mechanical devices, so the control method and circuit connection will not be explained in detail.

[0034] The working principle of the above embodiments is as follows:

[0035] The flange 1 is connected and fixed to the robotic arm. The gripping assembly 6 is suspended above the array of preforms corresponding to the gripping assembly 6. Then, the connecting plate 3 is moved so that the sealing gasket 606 fits against the preform neck, thereby sealing the preform. Simultaneously, the preform removal head 602 slides downward, sealing it against the sealing plate 605. Then, the vacuum machine 5 is activated, allowing the gas inside the preform to be extracted through the evacuation port 603, thus tightly locking the preform and the sealing gasket 606. Finally, the preform is moved to the designated position. During the movement... By quantitatively releasing air and simultaneously allowing the preform picking head 602 to slide under the elastic action of the spring 604, the annular groove 607 connects with the air passage when the preform falls to the designated position. This, in turn, connects the air passage with the suction channel, and through the connection between the air outlet of the preform picking head 602 and the annular groove 607, the interior of the preform is connected to the suction channel. This enables rapid air release from the preform, ensuring that the preform detaches quickly from the picking head 602 after placement, thus improving the effectiveness of the clamp.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A special fixture for robot preform removal from mold, comprising a flange (1), characterized in that: The flange (1) is fixed with a fixing post (2) at the bottom, a connecting plate (3) is fixed with the bottom of the fixing post (2), a connecting plate (4) is fixed with the left side of the connecting plate (3), a vacuum machine (5) is fixed with the left side of the connecting plate (4), and a clamping assembly (6) is provided with the right side of the connecting plate (3). The clamping assembly (6) includes a suction cup fixing rod (601) fixed to the right side of the connecting plate (3). A blank-taking head (602) is slidably connected to the outside of the suction cup fixing rod (601). A sealing plate (605) is fixed to the outside of the suction cup fixing rod (601). A spring (604) fixed to the sealing plate (605) is fixed to the left side of the blank-taking head (602). The spring (604) is wrapped around the outside of the suction cup fixing rod (601). A sealing gasket (606) is fixed to the outside of the blank-taking head (602).

2. A special fixture for robot preform removal from mold according to claim 1, characterized in that: The suction cup fixing rod (601) has an air extraction channel on its inner side, and an air extraction hole (603) communicating with the air extraction channel is provided on the right side of the suction cup fixing rod (601).

3. A special fixture for robot preform removal from mold according to claim 2, characterized in that: The suction cup fixing rod (601) is provided with an air passage hole that communicates with the air extraction channel, and the inner side of the embryo taking head (602) is provided with an annular groove (607) that communicates with the air passage hole.

4. A special fixture for robot preform removal from mold according to claim 3, characterized in that: The outer side of the embryo-taking head (602) is provided with four air outlets, which are connected to the annular groove (607).

5. A special fixture for robot preform removal from mold according to claim 1, characterized in that: The embryo-removing head (602) has a sliding opening on its inner side, and the embryo-removing head (602) is slidably connected to the suction cup fixing rod (601) through the sliding opening.

6. A special fixture for robot preform removal from mold according to claim 2, characterized in that: An air passage is provided on the left side of the connecting plate (3), and the connecting plate (4) is fixed above the air passage.

7. A special fixture for robot preform removal from mold according to claim 6, characterized in that: The connecting plate (3) has an air passage hole that communicates with the air passage chamber and the air passage hole is connected to the air extraction channel.

8. A special fixture for robot preform removal from mold according to claim 1, characterized in that: The clamping components (6) are in four groups, and each group of clamping components (6) is evenly and equidistantly distributed in an array on the connecting plate (3).

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