Sucking disc used on easy-open lid production line

Abstract

The utility model relates to a suction cup, in particular to a suction cup used on an easy-open lid production line, which comprises a suction cup body and an elastic rod, a flow channel is arranged in the suction cup body, one end of the flow channel is connected with a vacuum generator, the other end of the flow channel faces a workpiece, the other end of the suction cup body is connected with a leather cup, and the elastic rod is arranged in the leather cup. The elastic rod is connected into the runner in a sliding mode, and the elastic rod slides in the first direction so as to be close to or away from the workpiece. According to the suction cup used on the easy-open lid production line, the suction effect can be guaranteed, and meanwhile a workpiece can be easily separated from the suction cup.

Description

Technical Field

[0001] This utility model relates to a suction cup, and more particularly to a suction cup used on an easy-open lid production line. Background Technology

[0002] See appendix Figure 4 Easy-open lids are common sealing components for aluminum cans or other cylindrical packaging. Easy-open lid production generally includes processes such as basic lid molding, pull ring assembly molding, and lid packaging. Suction cups are needed to move between these processes. When the pull ring is integrated into the lid body, it occupies the suction cup's suction position; therefore, the suction position of an easy-open lid with an integrated pull ring changes from point A to point B.

[0003] One end of the suction cup is connected to a vacuum generator, and the other end is connected to a rubber cup. When it is necessary to move the easy-open lid, the rubber cup is placed on the lid, and the vacuum generator is activated to hold the lid in place. A problem encountered in actual use is that when the suction cup moves the lid to the target location and the vacuum generator is turned off, the lid, being light and having significant friction with the rubber cup, cannot detach from the suction cup on its own.

[0004] Therefore, improvements are needed to the existing suction cups. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology, this utility model provides a suction cup used on an easy-open lid production line, which facilitates separation from the easy-open lid when the vacuum generator is turned off.

[0006] To achieve the above objectives, this utility model discloses a suction cup used on an easy-open lid production line, which has a spring rod that can move up and down inside, and uses the spring rod to push the easy-open lid off the suction cup.

[0007] Specifically, the suction cup includes a suction cup body, the inside of which is provided with a flow channel. One end of the flow channel is connected to a vacuum generator, the other end of the flow channel faces the workpiece, and the other end of the suction cup body is connected to a rubber cup.

[0008] A spring rod is slidably connected to the flow channel and slides in a first direction to move closer to or away from the workpiece.

[0009] Preferably, the spring rod is an electrically telescopic rod, with the fixed end of the spring rod connected to the flow channel and the movable end of the spring rod extending into the flow channel near the workpiece.

[0010] Preferably, the spring rod includes a sleeve, a mandrel, and a spring. One end of the sleeve is fixedly connected to the inside of the suction cup body, the mandrel is slidably connected to the inside of the sleeve, and one end of the spring is pressed against one end of the mandrel. Without the action of external force, the mandrel has a tendency to slide towards the side closer to the workpiece, and one end of the sleeve is connected to a vacuum generator.

[0011] The sleeve cavity is provided with a first flange, which is located above the mandrel, and the spring is located between the first flange and the mandrel.

[0012] The mandrel is provided with a second flange for limiting its sliding limit position.

[0013] One end of the mandrel is connected to a rubber sleeve.

[0014] The diameter of the flow channel is defined as D, and the outer diameter of the sleeve is defined as d, where D > d.

[0015] This utility model has the following technical effects:

[0016] (1) The adsorption position of the workpiece changes from point A to point B, which can ensure the reliability of adsorption;

[0017] (2) The workpiece can be easily separated from the leather cup by using the spring rod to prevent the workpiece from sticking to the leather cup. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the adsorption easy-open cap of this utility model;

[0019] Figure 2 This is a cross-sectional view of the present invention;

[0020] Figure 3 for Figure 2 Enlarged view of the structure of section C;

[0021] Figure 4 This is a schematic diagram of the structure of the easy-open cover (workpiece) in this utility model.

[0022] In the diagram:

[0023] 100. Suction cup body; 101. Flow channel; 102. Leather cup;

[0024] 200. Spring rod; 201. Sleeve; 202. Mandrel; 203. Spring; 204. First flange; 205. Second flange; 206. Rubber sleeve;

[0025] 300. Workpiece. Detailed Implementation

[0026] The principles and features of this utility model are described below with reference to the embodiments; the examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0027] A suction cup used on a pull-tab production line includes a suction cup body 100. The suction cup body 100 has an internal flow channel 101. One end of the flow channel 101 is connected to a vacuum generator, and the other end of the flow channel 101 faces the workpiece 300. A rubber cup 102 is connected to the end of the suction cup body 100 closest to the workpiece 300. The vacuum generator provides a negative pressure environment for the flow channel 101; when transferring the workpiece 300, the vacuum generator is activated, and the rubber cup 102 adsorbs the workpiece 300. See appendix. Figure 4 The common suction cup adsorption location is usually the upper surface of workpiece 300 (i.e., point A). However, since the upper surface of workpiece 300 is no longer flat after the easy-pull ring is integrated, the reliability of adsorption is reduced. Therefore, in this solution, the adsorption location of the suction cup is changed from point A to point B. Here, the cup 102 refers to a cone-shaped object made of rubber or a material with the same elastic properties as rubber. The main structure of the suction cup body 100 can be an existing suction cup structure, generally composed of a metal shell, which will not be described in detail here.

[0028] In this design, the adsorption location is point B. There is significant friction between the cup 102 and the workpiece 300. Therefore, even with the vacuum generator turned off, the workpiece 300 will not easily separate from the cup 102 due to the friction, the small mass of the workpiece 300, and the elastic restraint provided by the cup 102. To address this, the applicant attempted to install an air-blowing device parallel to the vacuum generator at one end of the flow channel 101, trying to blow the workpiece 300 away from the cup 102 by blowing air into the flow channel 101. However, due to the small mass of the workpiece 300, the falling position of the cup 102 after being blown away deviates, resulting in unsatisfactory results.

[0029] Therefore, the applicant has slidably connected a spring rod 200 in the flow channel 101, which, in the first direction (see appendix) Figure 2 Slide it along the X direction to drop the workpiece 300 to the predetermined position.

[0030] The applicant discloses the following two examples.

[0031] Example 1

[0032] The spring rod 200 is an electrically operated telescopic rod. According to research, the smallest electrically operated telescopic rod currently available can be controlled within 5 centimeters in size, allowing for application in very confined spaces. Common brands include TEMUI pen-style electrically operated linear actuators. It is important to note that in the design, the outer diameter of the spring rod 200 should not exceed the inner diameter of the flow channel 101, to allow space for negative pressure airflow.

[0033] Example 2

[0034] Unlike Embodiment 1, in this embodiment, the spring rod 200 includes a sleeve 201, a spindle 202, and a spring 203. One end of the sleeve 201 is threadedly connected to the inside of the suction cup body 100, and the spindle 202 is slidably connected to the inside of the sleeve 201. One end of the spring 203 is pressed against one end of the spindle 202. Without external force, the spindle 202 tends to slide towards the workpiece 300. One end of the sleeve 201 is connected to a vacuum generator. A first flange 204 is provided inside the sleeve 201, positioned above the spindle 202. The spring 203 is positioned between the first flange 204 and the spindle 202. Under the action of the spring 203, the spindle 202 extends out of the sleeve 201. The spindle 202 is provided with a second flange 205 to limit its sliding limit position; specifically, the second flange 205 limits the lowest downward sliding position of the spindle 202.

[0035] To prevent damage to the workpiece 300 when the mandrel 202 pops out, a rubber sleeve 206 is connected to the protruding end of the mandrel 202.

[0036] Similarly, to prevent the spring rod 200 from blocking the entire flow channel 101, the dimensions of the spring rod 200 and the flow channel 101 should be limited to allow space for negative pressure airflow. Specifically, the diameter of the flow channel 101 is defined as D, and the outer diameter of the sleeve 201 is defined as d, where D > d.

[0037] To ensure the device is airtight, see Appendix Figure 2 A sealing ring needs to be installed at point F (where the sleeve 201 connects to the suction cup body 100) and point E (between the spindle 202 and the inner wall of the flow channel 101).

[0038] In this embodiment, the working principle of the spring rod 200 is as follows: when the leather cup 102 is placed over the workpiece 300, the spring rod 200 is lifted up; when the vacuum generator is started, the workpiece 300 is adsorbed and the spring rod 200 is fixed; when the workpiece 300 is transferred to the target position, the vacuum generator is turned off and the spring rod 200 is pushed down under the action of the spring 203.

[0039] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A suction cup used on an easy-open lid production line, comprising: The suction cup body (100) has a flow channel (101) inside. One end of the flow channel (101) is connected to a vacuum generator, and the other end of the flow channel (101) faces the workpiece (300). The other end of the suction cup body (100) is connected to a leather cup (102). Its characteristic is that it further includes: A spring rod (200) is slidably connected to the flow channel (101) and slides in a first direction to approach or move away from the workpiece (300). The spring rod (200) includes a sleeve (201), a spindle (202), and a spring (203). One end of the sleeve (201) is fixedly connected to the inside of the suction cup body (100), and the spindle (202) is slidably connected to the inside of the sleeve (201). One end of the spring (203) is pressed against one end of the spindle (202). Without the action of external force, the spindle (202) has a tendency to slide towards the side closer to the workpiece (300). One end of the sleeve (201) is connected to the vacuum generator. Define the diameter of the flow channel (101) as D, and define the outer diameter of the sleeve (201) as d, where D > d.

2. The suction cup used on the easy-open lid production line according to claim 1, characterized in that, The sleeve (201) has a first flange (204) inside, which is located above the mandrel (202). The spring (203) is located between the first flange (204) and the mandrel (202).

3. The suction cup used on the easy-open lid production line according to claim 1, characterized in that, The mandrel (202) is provided with a second flange (205) for limiting its sliding limit position.

4. The suction cup used on the easy-open lid production line according to claim 1, characterized in that, One end of the mandrel (202) is connected to a rubber sleeve (206).

5. The suction cup used on the easy-open lid production line according to claim 1, characterized in that, The diameter of the flow channel (101) is defined as D, and the outer diameter of the sleeve (201) is defined as d, where D > d.

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