Vacuum chuck, bag taking device and packaging line

Abstract

A kind of vacuum chuck, bag taking device and packaging line belong to textile packaging technical field, vacuum chuck includes connecting seat, the upper end of connecting seat is detachably installed with connecting head, the lower end of connecting seat is detachably installed with hole core and petal-shaped chuck head, the lower end of hole core is located in the inner cavity of chuck head, connecting seat, connecting head and hole core are connected;Several first hole and second hole are set on hole core, first hole is set along the axial direction of hole core, second hole is at an angle with the axial direction of hole core, petal-shaped chuck head greatly reduces wrinkle and complex gap, reduces the accumulation probability of dust and impurities from the source, solves the problem of cleaning difficulty, buffer failure and chuck damage caused by impurities;The first hole of axial direction and the second hole of oblique direction cooperate to form multi-directional air extraction path, which can not only improve the exhaust efficiency, but also make the negative pressure distribution in the adsorption cavity more uniform, effectively weaken the pressure gradient difference between the center and the edge, and ensure the adsorption stability.

Description

Technical Field

[0001] This utility model relates to the field of textile packaging technology, and in particular to a vacuum suction cup, a bag-removing device, and a packaging line. Background Technology

[0002] Vortex-spun yarn refers to yarn spun and wound into a tube shape using vortex spinning technology. Vortex-spun yarn is a double-structure yarn with two parts: core fibers and outer fibers. The core fibers are arranged in parallel and without twist, while the outer fibers are wrapped in a regular spiral around the surface of the core fibers.

[0003] In actual production, after the vortex spinning of the yarn package is completed, it needs to be packaged in a laminated bag. The laminated bag is gripped by a vacuum suction cup. The vacuum suction cup (such as the publication number CN206860650U) usually includes a base and a suction cup. The base is connected to a fan or other ventilation structure, and the suction cup adsorbs the bags stacked at the work station to grip the bags, making it convenient for workers to take the laminated bags and improving work efficiency.

[0004] Existing vacuum suction cups mostly have an accordion-style suction cup structure, which has complex gaps such as folds. Dust and electrostatically adsorbed impurities remaining on the surface of the coated bag will accumulate in the folds, which is not only difficult to clean, but also easily leads to buffer failure or suction cup damage. In addition, the channels used for suction in existing vacuum suction cups are all set along the axial direction, resulting in low exhaust efficiency. At the same time, it is easy to cause strong negative pressure in the center of the suction chamber and weak negative pressure at the edge, forming a pressure gradient difference, which makes leakage very easy. Utility Model Content

[0005] To address the technical problems of existing accordion-style vacuum suction cups, which are prone to attracting impurities and causing damage, have low exhaust efficiency, and are easily leaked due to pressure gradient differences, this utility model provides a vacuum suction cup.

[0006] The technical solution of this utility model is as follows: This utility model provides a vacuum suction cup, including a connecting base. A connector head is detachably mounted on the upper end of the connecting base, and a core and a petal-shaped suction cup head are detachably mounted on the lower end of the connecting base. The lower end of the core is located in the inner cavity of the suction cup head. The connecting base, the connector head, and the core are connected. The core has several first channels and second channels. The first channels are arranged along the axial direction of the core, and the second channels are at an angle to the axial direction of the core. The petal-shaped suction cup head significantly reduces wrinkles and complex gaps, thereby reducing the probability of dust and impurities accumulating and solving the problems of cleaning difficulties and buffer failure and suction cup damage caused by impurities. At the same time, the axial first channels and the oblique second channels cooperate to form a multi-directional air extraction path, which can not only improve exhaust efficiency but also make the negative pressure distribution in the adsorption chamber more uniform, effectively weaken the pressure gradient difference between the center and the edge, reduce the risk of leakage, and ensure adsorption stability.

[0007] Preferably, the first channel penetrates the upper and lower ends of the core, and the second channel penetrates the upper end and sidewall of the core. The first channel penetrating the upper and lower ends of the core can form an axial main exhaust channel to ensure the negative pressure strength of the core area. The second channel penetrating the upper end and sidewall can extend the exhaust range to the peripheral area of ​​the suction head cavity, so that the negative pressure can quickly cover the entire adsorption cavity, further optimize the uniformity of negative pressure distribution, significantly improve the exhaust speed, and enhance the adsorption response efficiency.

[0008] Preferably, the suction head includes a mounting part, which is connected to the lower end of the connecting seat. Several petals are fixedly arranged on the lower periphery of the mounting part, and adjacent petals are fixedly connected together. An exhaust gap is provided between the lower ends of adjacent petals. The fixed connection of adjacent petals can ensure the overall structural strength and adsorption capacity of the suction head, and avoid petal deformation and misalignment due to force dispersion during adsorption. The exhaust gap at the lower end can help to expel air from the adsorption chamber during ventilation, supplementing the insufficient ventilation of the duct. At the same time, it can play a certain buffering role when adsorbing coated bags, reducing the squeezing damage to the bag. Moreover, the gap structure is simple, does not easily accumulate impurities, and is easy to clean and maintain.

[0009] Preferably, a sealing lip is fixedly provided at the lower edge of the flap body. The sealing lip can enhance the adhesion and sealing between the suction head and the surface of the film bag, and reduce the leakage of negative pressure at the edge.

[0010] Preferably, the valve body has a concave structure, with the inner wall of the valve body recessed towards the outer wall. This increases the volume of the suction head's inner cavity, providing more space for airflow and improving exhaust efficiency. At the same time, the concave shape allows the valve body to undergo more uniform deformation during adsorption, avoiding damage to the valve body caused by local stress concentration, extending the service life of the suction head. Furthermore, the concave inner wall can guide airflow to converge towards the channel, optimizing the negative pressure formation speed and distribution uniformity.

[0011] Preferably, the lower end of the connector has a stepped structure, which provides precise positioning and limiting for the installation part of the suction head, facilitating quick assembly and improving installation efficiency; at the same time, the stepped surface can form a tight-fitting connection interface with the installation part, reducing airflow leakage at the connection point, ensuring that the negative pressure loss of the exhaust system is minimized, and indirectly improving the negative pressure strength and stability in the adsorption chamber.

[0012] A bag-grabbing device includes a crossbeam with a fixed seat movably mounted on it. A telescopic unit is fixedly installed on the fixed seat. The telescopic unit is vertically oriented, and a gripping frame is fixedly connected to its lower end. At least one vacuum suction cup is installed on the gripping frame. This effectively solves the problems of impurity accumulation and suction leakage associated with traditional suction cups, improving the stability and reliability of gripping coated bags. Simultaneously, the movement of the fixed seat on the crossbeam, combined with the vertical extension and retraction of the telescopic unit, enables multi-position and multi-height adjustment of the gripping frame, adapting to the gripping needs of coated bags at different stacking positions and heights, further improving bag-grabbing efficiency and device applicability.

[0013] Preferably, the gripping frame is fixedly connected to a second guide rail, which is vertically arranged. A second slider is fixedly mounted on the fixed base. The second guide rail and the second slider are slidably connected. The sliding cooperation between the second guide rail and the second slider provides guidance and support for the vertical movement of the gripping frame, preventing shaking or deviation when the telescopic unit drives the gripping frame, and ensuring that the vacuum suction cup can accurately align with the gripping position of the coated bag. At the same time, the sliding structure can distribute the force on the telescopic unit, reduce component wear, extend the overall service life of the device, and ensure the stability of the bag picking process.

[0014] A packaging line includes a conveyor belt with a laminated bag stacking position on each side of the conveyor belt in the conveying direction. A crossbeam spans the conveyor belt. By crossing the conveyor belt and cooperating with the laminated bag stacking positions on both sides, a bag-grabbing device can flexibly grab the laminated bags on both sides, adapting to the packaging needs of vortex-spun yarn of different specifications.

[0015] As can be seen from the above technical solutions, the advantages of this utility model are: 1. The petal-shaped suction head is designed to significantly reduce wrinkles and complex gaps, thereby reducing the probability of dust and impurities accumulating at the source and solving the problems of cleaning difficulties and buffer failure and suction cup damage caused by impurities. At the same time, the axial first channel and the oblique second channel work together to form a multi-directional air extraction path, which can not only improve exhaust efficiency, but also make the negative pressure distribution in the adsorption chamber more uniform, effectively weaken the pressure gradient difference between the center and the edge, reduce the risk of leakage, and ensure adsorption stability.

[0016] 2. The valve body has a concave structure, with the inner wall of the valve body recessed towards the outer wall. This increases the volume of the suction head's inner cavity, providing more space for airflow and improving exhaust efficiency. At the same time, the concave shape allows the valve body to deform more uniformly during adsorption, avoiding damage caused by local stress concentration, extending the service life of the suction head. Furthermore, the concave inner wall can guide airflow to converge towards the channel, optimizing the negative pressure formation speed and distribution uniformity. Attached Figure Description

[0017] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of the vacuum suction cup according to one or more embodiments of the present invention; Figure 2 This is a cross-sectional structural diagram of the vacuum suction cup according to one or more embodiments of the present invention; Figure 3 This is a schematic diagram of the core structure according to one or more embodiments of the present invention; Figure 4 This is a bottom view of the vacuum suction cup according to one or more embodiments of the present invention. Figure 5 This is a schematic diagram of the bag-removing device according to one or more embodiments of the present invention; Figure 6 This is a partially enlarged structural schematic diagram of the bag-removing device according to one or more embodiments of the present invention; The components represented by the various reference numerals in the diagram are: 1. Connecting seat; 2. Connecting head; 3. Suction cup head; 4. Core; 5. First air passage; 6. Second air passage; 7. First channel; 8. Second channel; 9. Mounting part; 10. Valve body; 11. Exhaust gap; 12. Sealing lip; 13. Connecting part; 14. Crossbeam; 15. Longitudinal beam; 16. Fixing seat; 17. Telescopic unit; 18. First guide rail; 19. Second guide rail; 20. First slider; 21. Second slider; 22. Gripping frame. Detailed Implementation

[0019] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0020] Example 1 In a typical embodiment of this utility model, such as Figures 1-4 As shown, a vacuum suction cup is proposed, comprising: a connecting base 1, a connecting head 2, a suction cup head 3, and a core 4. The connecting head 2 is detachably mounted on the upper end of the connecting base 1, the suction cup head 3 is detachably mounted on the lower end of the connecting base 1, and the core 4 is detachably mounted on the lower end of the connecting base 1, with the lower end of the core 4 located in the inner cavity of the suction cup head 3. The connecting base 1, the connecting head 2, the suction cup head 3, and the core 4 are coaxially arranged and connected to each other. The connecting head 2 is used to connect to a vacuum pumping device, and the core 4 is used to draw gas from inside the suction cup head 3 into and guide it into the connecting head 2 to achieve a vacuum operation and complete the gripping of the coated bag. The suction cup head 3 has a petal-shaped structure, is wrinkle-free, is easier to clean, and contains an exhaust gap 11 for higher exhaust efficiency.

[0021] like Figure 3As shown, the core 4 is also provided with several channels for exhaust, namely the first channel 7 and the second channel 8. The first channel 7 is arranged along the axial direction of the core 4, and the second channel 8 is at an angle to the axial direction of the core 4. The second channel 8 penetrates the upper end and side wall of the core 4, and the first channel 7 penetrates the upper and lower ends of the core 4. The first channel 7 and the second channel 8 work together. The first channel 7 is used to quickly exhaust the air in the axial direction of the suction head 3, and the second channel 8 is used to quickly exhaust the air at the side wall of the suction head 3, so as to avoid the formation of a pressure gradient difference with strong negative pressure in the center and weak negative pressure at the edge, and ensure the adsorption and gripping quality.

[0022] The side wall of the core 4 is provided with external threads, and the center of the connecting seat 1 is provided with a first air passage 5. The first air passage 5 is connected to the first passage 7 and the second passage 8 to allow gas to pass through. The lower end of the first air passage 5 is provided with internal threads. The core 4 is connected to the first air passage 5 by threaded connection. The detachable and installable structure facilitates the installation of the core 4. When the passage of the core 4 is blocked, it can also be quickly disassembled and repaired without replacing the entire vacuum suction cup, which effectively reduces maintenance costs.

[0023] It should be noted that when machining the external thread on the core 4, the external thread should be located on the upper side of the second channel 8 on the side wall of the core 4 to avoid the end of the second channel 8 located on the side wall of the core 4 being screwed into the first air channel 5 and becoming blocked when installing the core 4.

[0024] like Figure 2 As shown, the upper end of the first air passage 5 is also provided with an internal thread, and the lower end of the outer wall of the connector 2 is provided with an external thread, so as to be detachably connected to the first air passage 5 by means of threaded connection. The center of the connector 2 is provided with a second air passage 6, which is used to communicate with the first air passage 5, thereby realizing the guidance of airflow. The connector 2 is connected to the vacuum pumping equipment through an air pipe.

[0025] In this embodiment, the suction head 3 has a petal-shaped structure. Specifically, the suction head 3 includes a mounting part 9 and several petals 10. The mounting part 9 is used to be fixedly connected to the lower end of the connecting seat 1. The lower end of the connecting seat 1 is provided with a connecting part 13. The outer diameter of the connecting part 13 is smaller than the outer diameter of the upper end of the connecting seat 1, thereby forming a stepped structure, which facilitates the limitation of the position of the mounting part 9. Several petals 10 are fixedly installed on the lower periphery of the mounting part 9. Adjacent petals 10 are fixedly connected together, and an exhaust gap 11 is provided between the lower ends of adjacent petals 10. The exhaust gap 11 is not longer than half the length of the petal 10, so as to facilitate the rapid discharge of auxiliary gas.

[0026] It is understandable that the connection between the mounting part 9 and the connecting part 13 can be a transition connection, an adhesive connection, or a threaded connection. The specific choice can be made according to actual needs, and no further restrictions are imposed here.

[0027] The valve body 10 has a concave structure, that is, the inner wall of the valve body 10 is concave towards the outer wall to improve the gripping force. A sealing lip 12 is fixedly provided at the lower edge of the valve body 10 to improve the sealing ability between the valve body 10 and the film bag.

[0028] Example 2 In another typical embodiment of this utility model, such as Figure 5 and Figure 6 As shown, a bag-retrieving device is proposed, including a crossbeam 14, a fixed base 16, a first guide rail 18, a first slider 20, a gripping frame 22, and a vacuum suction cup. The first guide rail 18 is fixedly installed on the crossbeam 14, and the first slider 20 is fixedly installed on the fixed base 16. The fixed base 16 is slidably connected to the first guide rail 18 through the first slider 20. A motor-driven lead screw pair is also installed on the crossbeam 14. The lead screw is rotatably mounted on the crossbeam 14, and a nut seat threadedly connected to the lead screw is fixedly installed on the fixed base 16, thereby driving the fixed base 16 to move along the length direction of the crossbeam 14. The gripping frame 22 is installed on the fixed base 16, and at least one vacuum suction cup as described in Embodiment 1 is installed on the gripping frame 22 to grip and transfer the coated bag using the vacuum suction cup.

[0029] A telescopic unit 17 is fixedly installed on the fixed base 16. The telescopic unit 17 is a cylinder structure. The telescopic unit 17 is vertically arranged. The lower end of the telescopic unit 17 is the telescopic end. The telescopic end of the telescopic unit 17 extends downward out of the fixed base 16 and is fixedly connected to the gripping frame 22, thereby driving the gripping frame 22 and the vacuum suction cup on it to move vertically.

[0030] like Figure 6 As shown, the gripper 22 is fixedly connected to a second guide rail 19, which is vertically arranged. A second slider 21 is fixedly provided on the fixed base 16. The second guide rail 19 and the second slider 21 are slidably connected, thereby guiding the gripper 22 vertically and preventing the gripper 22 from tilting during vertical movement.

[0031] In this embodiment, longitudinal beams 15 are also fixed at both ends of the crossbeam 14. The crossbeam 14 is movably connected to the longitudinal beam 15 through a motor-driven lead screw pair structure, thereby realizing the movement of the gripping frame 22 in the X, Y, and Z axes.

[0032] Example 3 In another typical embodiment of this utility model, a packaging line is proposed, including a conveyor belt and a bag-picking device. The conveyor belt is used for conveying vortex-spun yarn. A packaging station is provided on one side of the conveyor belt in the conveying direction, and a laminated bag stacking position is provided on each side of the conveyor belt in the conveying direction. The two laminated bag stacking positions are used to place laminated bags of different specifications. The crossbeam 14 of the bag-picking device spans the conveyor belt, and the gripping frame 22 can grab the laminated bags on the corresponding laminated bag stacking position according to the actual specifications of the vortex-spun yarn. It has strong adaptability and high working efficiency. The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A vacuum suction cup, comprising: The connector (1) is characterized in that a connector (2) is detachably installed on the upper end of the connector (1), and a core (4) and a petal-shaped suction head (3) are detachably installed on the lower end of the connector (1). The lower end of the core (4) is located in the inner cavity of the suction head (3), and the connector (1), connector (2) and core (4) are connected to each other. The core (4) has several first channels (7) and second channels (8). The first channels (7) are arranged along the axial direction of the core (4), and the second channels (8) are at an angle to the axial direction of the core (4).

2. The vacuum suction cup according to claim 1, characterized in that, The first channel (7) penetrates the upper and lower ends of the core (4), and the second channel (8) penetrates the upper end and side wall of the core (4).

3. The vacuum suction cup according to claim 1, characterized in that, The suction head (3) includes a mounting part (9), which is connected to the lower end of the connecting seat (1). Several valves (10) are fixedly provided on the lower periphery of the mounting part (9). Adjacent valves (10) are fixedly connected together, and an exhaust gap (11) is provided between the lower ends of adjacent valves (10).

4. The vacuum suction cup according to claim 3, characterized in that, A sealing lip (12) is fixedly provided at the lower edge of the valve body (10).

5. The vacuum suction cup according to claim 3, characterized in that, The valve body (10) has an inward concave structure.

6. The vacuum suction cup according to claim 3, characterized in that, The lower end of the connector (1) has a stepped structure.

7. A bag-removing device, characterized in that, include: A crossbeam (14) is provided with a fixed seat (16) on the crossbeam (14). A telescopic unit (17) is fixedly installed on the fixed seat (16). The telescopic unit (17) is arranged vertically. A gripping frame (22) is fixedly connected to the lower end of the telescopic unit (17). At least one vacuum suction cup as described in any one of claims 1-6 is installed on the gripping frame (22).

8. The bag-removing device according to claim 7, characterized in that, The gripper (22) is fixedly connected to a second guide rail (19), which is vertically arranged. A second slider (21) is fixedly provided on the fixed base (16), and the second guide rail (19) and the second slider (21) are slidably connected.

9. A packaging line, characterized in that, The bag-retrieving device as described in claim 7 is adopted, including a conveyor belt, with a film-coated bag stacking position on each side of the conveyor belt in the conveying direction, and a crossbeam (14) spanning the conveyor belt.

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