Embryo taking and transferring mechanism

By using a modular preform loading plate and vacuum adsorption technology, the problem of disordered preform release was solved, and stable preform transport and phased release were achieved.

CN224197252UActive Publication Date: 2026-05-05CHONGQING QIANZHIXING TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHONGQING QIANZHIXING TECHNOLOGY CO LTD
Filing Date
2025-05-27
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

In the existing technology, the cross-sectional area of ​​the preform extraction plate is too large, which makes it easy for the preform to get stuck or fall onto the conveyor belt during release.

Method used

The system employs two splicable preform picking plates, which are simultaneously gripped and asynchronously released by a robotic arm. The preforms are released independently using vacuum adsorption, and the splicing surfaces are dynamically matched to the effective load-bearing width of the conveyor belt through connectors.

Benefits of technology

It effectively prevents preforms from getting stuck or falling, enabling phased release and transfer of preforms, and meeting the load-bearing requirements of the conveyor belt.

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Abstract

The utility model discloses an embryo taking and transferring mechanism which comprises a manipulator and two embryo taking plates, the manipulator is provided with two mounting positions; the two blank taking plates are arranged at the two mounting positions in a one-to-one correspondence mode, each blank taking plate is provided with a splicing face, and one splicing face is connected with the other splicing face through a connecting piece so that the two blank taking plates can be spliced; the blank taking plate is provided with a plurality of airflow channels, a plurality of vent holes and a plurality of mounting holes, and the vent holes and the mounting holes are connected through the same airflow channel and used for being connected with a vacuum source and a vacuum suction cup respectively. The blank taking device solves the technical problem that bottle blanks are released disorderly due to the fact that the blank taking plate is not matched with the effective bearing width of the conveying belt due to the fact that the sectional area is too large in the prior art.
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Description

Technical Field

[0001] This utility model relates to the field of injection molding technology for preforms, and specifically to a preform handling and transfer mechanism. Background Technology

[0002] The preform grabbing mechanism grabs multiple preforms from the injection mold and releases them in stages onto the conveyor belt. In related technologies, the preform grabbing plate of the preform grabbing mechanism is designed to handle batch preform grabbing operations, and its cross-sectional area is relatively large. As a result, during the staged release process, the group of preforms released at one time can easily exceed the effective carrying width of the conveyor belt, causing the preforms to jam or fall. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a preform picking and transfer mechanism to solve the technical problem that the preform picking plate is too large in cross-sectional area and does not match the effective bearing width of the conveyor belt, resulting in disordered release of preforms.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] An embryo removal and transfer mechanism includes: a robotic arm with two mounting positions; the embryo removal and transfer mechanism further includes: two embryo removal plates, which are respectively disposed in the two mounting positions, and each embryo removal plate has a splicing surface, one of which is connected to the other splicing surface through a connector to splice the two embryo removal plates.

[0006] The blank-taking plate is provided with multiple airflow channels, multiple ventilation holes and multiple mounting holes. The multiple ventilation holes and multiple mounting holes are connected by the same airflow channel, which are used to connect a vacuum source and a vacuum suction cup respectively.

[0007] Furthermore, the airflow channel is hidden inside the embryo-taking plate.

[0008] Furthermore, the vent hole and the mounting hole are located on the upper and lower surfaces of the blank-taking plate, respectively.

[0009] Furthermore, at least one end of the airflow channel is closed by the side wall or plug of the embryo-taking plate.

[0010] Furthermore, the connector includes a connecting block, which is detachably connected to each of the two embryo-taking plates.

[0011] Furthermore, both the blank-taking plate and the connecting block are provided with threaded holes for screws to pass through.

[0012] Furthermore, the threaded holes located at the blank-taking plate are spaced apart from the airflow channels.

[0013] Furthermore, the blank-taking plate is provided with multiple through holes, which are spaced apart from the airflow channel.

[0014] Furthermore, the plurality of mounting holes are arranged at equal intervals along the length and / or width direction of the blank-taking plate.

[0015] Compared with existing technologies, this utility model has the following advantages: Replacing the original one-piece preform picking plate with two splicable preform picking plates not only achieves synchronous gripping and asynchronous release, but also allows either of the two preform picking plates to be projected onto the conveyor belt to meet the effective load-bearing width of the conveyor belt, thereby preventing the preforms from getting stuck or falling onto the conveyor belt after release; that is, the two preform picking plates can be spatially spaced and installed at intervals under the constraint of the robot arm, so that the projected area of ​​the preform group released at one time dynamically matches the instantaneous effective width of the conveyor belt; at the same time, the two preform picking plates are spliced ​​together using connectors to control the spacing between the two preform picking plates to meet the spacing of the preforms at the injection mold; furthermore, each preform picking plate grips the preforms by vacuum adsorption, and each preform picking plate does not affect the others, so the preform groups located at each preform picking plate can be released independently to complete the staged release and transfer operation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the embryo transfer mechanism according to an embodiment of the present invention;

[0017] Figure 2 This is a schematic diagram of the structure of the blank-taking plate in one embodiment of the present invention;

[0018] Figure 3 This is a cross-sectional view of the embryo-taking plate in one embodiment of the present invention.

[0019] The reference numerals in the accompanying drawings include:

[0020] 1. Blank plate; 101. Splicing surface; 2. Airflow channel; 3. Vent hole; 4. Mounting hole; 5. Plug; 6. Connecting block; 7. Threaded hole; 8. Screw; 9. Through hole; 10. Vacuum suction cup. Detailed Implementation

[0021] The present invention will be further described in detail below through specific embodiments:

[0022] In the embodiments of this utility model, such as Figures 1-3 As shown, the embryo transfer mechanism includes: a robotic arm and two embryo removal plates 1; the robotic arm has two mounting positions; the two embryo removal plates 1 are respectively arranged in the two mounting positions, and each embryo removal plate 1 has a splicing surface 101, one of the splicing surfaces 101 is connected to the other splicing surface 101 through a connector to splice the two embryo removal plates 1;

[0023] The blank-taking plate 1 is provided with multiple airflow channels 2, multiple ventilation holes 3 and multiple mounting holes 4. The multiple ventilation holes 3 and the multiple mounting holes 4 are connected by the same airflow channel 2, and are used to connect the vacuum source and the vacuum suction cup 10 respectively.

[0024] Specifically, in this embodiment of the invention, the robotic arm (not shown) includes first, second, and third sliding portions that slide along the X, Y, and Z axes respectively. These three sliding portions are connected sequentially to allow the robotic arm to reciprocate in three directions. A tilting plate is provided at the third sliding portion, driven by a tilting cylinder to rotate the plate 90°. Two mounting positions are symmetrically arranged on the surface of the tilting plate, each used to mount two blank-taking plates 1, allowing the blank-taking plates 1 to move with the robotic arm between the injection mold and the conveyor belt. The aforementioned mounting positions can be openings formed at the tilting plate, with the blank-taking plates 1 embedded in these openings and secured to the tilting plate by bolts or other fasteners. This is prior art and will not be described in detail here.

[0025] If two blank-grabbing plates 1 are set independently and placed at the same flipping plate, the purpose of synchronous grabbing and asynchronous release can be achieved.

[0026] Specifically, each of the two preform-receiving plates 1 has a splicing surface 101 on its opposite end face. The two splicing surfaces 101 are either abutted or spaced apart, and the two preform-receiving plates 1 are connected into a whole by a connector. This allows the two preform-receiving plates 1 to pick up materials synchronously, and also allows the two preform-receiving plates 1 to be connected by the connector to adapt to the spacing between two adjacent preforms at the injection mold (of course, the spliced ​​preform-receiving plates 1 are not only easy to transport and store, but also can form a whole gripping plane to meet the needs of large-volume gripping). In addition, each preform-receiving plate 1 is provided with an airflow channel 2, a vent 3, and a mounting hole 4, which are connected to each other, so that the vent 3 and the mounting hole 4 can be used to connect to a vacuum source and a vacuum suction cup 10, respectively. In this way, the airflow channel 2 is used as the "main channel" and the mounting hole 4 is used as a "sub-channel" to use the vacuum suction cup 10 to adsorb and release the preforms. Of course, the airflow channel 2, ventilation hole 3 and mounting hole 4 mentioned above can be set to multiple. The setting of multiple ventilation holes 3 can evenly distribute the airflow. The multiple airflow channels 2 and multiple mounting holes 4 are all equidistantly spaced, which can enable multiple vacuum suction cups 10 to be installed on a single preform picking plate 1, so as to grab multiple preforms at the same time (forming a preform group).

[0027] Therefore, the setting of two preform picking plates 1 can split the original one-piece preform picking plate 1 into two to meet the conveyor belt's carrying width limit; at the same time, the movement of the robot and the independent release mode of the two preform picking plates 1 can be used to release the preform group in stages, so that each preform is placed on the conveyor belt at equal intervals, and subsequent operations can be carried out without shaping them.

[0028] like Figure 3 As shown, in one embodiment, the airflow channel 2 is hidden within the preform-taking plate 1. Specifically, to ensure the airtightness of the airflow channel 2, in this embodiment, the airflow channel 2 is hidden within the preform-taking plate 1, that is, the airflow channel 2 does not extend beyond the upper and lower end faces of the preform-taking plate 1. Preferably, the vent hole 3 and the mounting hole 4 are located on the upper and lower surfaces of the preform-taking plate 1, respectively; thus, the vent hole 3 and the mounting hole 4 can be connected through the airflow channel 2, and the vent hole 3-airflow channel 2-mounting hole 4 and vacuum suction cup 10 are sequentially sealed to form a channel, so that a vacuum source (e.g., a vacuum generator) can perform vacuum treatment on the channel. In this embodiment, the number of vent holes 3 is less than the number of mounting holes 4, which is used to reduce the number of vacuum lines installed at the preform-taking plate 1 and avoid knotting or messy placement. In other embodiments, the number of both can be equal; and stepped surfaces are provided at both the vent hole 3 and the mounting hole 4 for installing sealing rings to form a sealing structure to improve the airtightness of the above-mentioned channel and facilitate rapid grasping and adsorption of preforms.

[0029] like Figure 2 , Figure 3 As shown, in one embodiment, at least one end of the airflow channel 2 is closed by the side wall of the blank-taking plate 1 or by a plug 5. Specifically, for ease of processing, one end of the airflow channel 2 extends to the end face of the blank-taking plate 1 and is closed by a plug 5; the other end remains hidden within the blank-taking plate 1 and is closed by the side wall of the blank-taking plate 1. Alternatively, both ends of the airflow channel 2 extend to opposite ends of the blank-taking plate 1 and are both sealed with plugs 5, allowing the airflow channel 2 to penetrate the blank-taking plate 1, thus making its position on the blank-taking plate 1 readily visible. The plug 5 is threaded onto the end face of the blank-taking plate 1, and the gap between them can be sealed by a sealing gasket. Of course, the plug 5 can also be located at the splicing surface 101. On the other hand, whether the plug 5 is completely screwed into the blank-taking plate 1 depends on the type of plug 5 selected in the actual application.

[0030] like Figure 1As shown, in one embodiment, the connector includes a connecting block 6, which is detachably connected to each of the two preform plates 1. Specifically, to connect the two preform plates 1, this embodiment defines the connector as a connecting block 6, which is detachably connected to the preform plates 1. Further, both the preform plates 1 and the connecting block 6 are provided with threaded holes 7 for screws 8 to pass through. Of course, to improve the stability and consistency of the two preform plates 1, this embodiment provides two connecting blocks 6 spaced apart to balance the force. In other embodiments, to adapt to the spacing between the preforms at the injection mold, multiple threaded holes 7 can be provided, and the appropriate threaded holes 7 can be selected for installation and fixation according to the spacing.

[0031] like Figure 1 , Figure 2 As shown, in one embodiment, the threaded hole 7 located on the blank-taking plate 1 is spaced apart from the vent hole 3. Specifically, in order to avoid the threaded hole 7 from damaging the airtightness of the airflow channel 2, this embodiment sets the threaded hole 7 and the vent hole 3 apart, so that the threaded hole 7 and the airflow channel 2 are spaced apart, and the two exist independently on the blank-taking plate 1 after being staggered, without affecting each other.

[0032] like Figure 1 , Figure 2 As shown, in one embodiment, the blank-taking plate 1 is provided with a plurality of through holes 9, which are spaced apart from the airflow channel 2. Specifically, in order to reduce the weight of the blank-taking plate 1, this embodiment provides a plurality of through holes 9 in the blank-taking plate 1, which are used to penetrate the blank-taking plate 1; in addition, the through holes 9 are also spaced apart from the vent holes 3, so that they can be staggered from the airflow channel 2 and exist independently in the blank-taking plate 1.

[0033] Multiple mounting holes 4 are equidistantly spaced along the length and width of the preform-taking plate 1; that is, multiple airflow channels 2 are equidistantly spaced along the width of the preform-taking plate 1, so that the preform-taking plate 1 is subjected to balanced force while using the vacuum suction cup 10 to grab preform groups in batches.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An embryo transfer mechanism, comprising: The robotic arm has two mounting positions; characterized in that the embryo transfer mechanism further includes two embryo-removing plates, which are respectively disposed in the two mounting positions, and each embryo-removing plate has a splicing surface, one of which is connected to the other splicing surface through a connector to splice the two embryo-removing plates. The blank-taking plate is provided with multiple airflow channels, multiple ventilation holes and multiple mounting holes. The multiple ventilation holes and multiple mounting holes are connected by the same airflow channel, which are used to connect a vacuum source and a vacuum suction cup respectively.

2. The embryo transfer mechanism as described in claim 1, characterized in that, The airflow channel is hidden inside the embryo extraction plate.

3. The embryo transfer mechanism as described in claim 2, characterized in that, The ventilation holes and the mounting holes are located on the upper and lower surfaces of the blank-taking plate, respectively.

4. The embryo transfer mechanism as described in claim 2, characterized in that, At least one end of the airflow channel is closed by the side wall or plug of the embryo-taking plate.

5. The embryo transfer mechanism as described in any one of claims 1-4, characterized in that, The connector includes a connecting block, which is detachably connected to each of the two embryo-taking plates.

6. The embryo transfer mechanism as described in claim 5, characterized in that, Both the blank-taking plate and the connecting block are provided with threaded holes for screws to pass through.

7. The embryo transfer mechanism as described in claim 6, characterized in that, The threaded holes located at the blank-taking plate are spaced apart from the airflow channels.

8. The embryo transfer mechanism as described in claim 1, characterized in that, The blank-taking plate is provided with multiple through holes, which are spaced apart from the airflow channel.

9. The embryo transfer mechanism as described in claim 1, characterized in that, The plurality of mounting holes are arranged at equal intervals along the length and / or width of the blank-taking plate.