Opening and closing grabbing mechanism

Abstract

The utility model provides an opening and closing grabbing mechanism which is sequentially provided with a solid push rod, an action hollow pipe and a fixed hollow pipe from inside to outside in the radial direction, the solid push rod slides in the action hollow pipe, and the action hollow pipe slides in the fixed hollow pipe. A pushing head is arranged at the front end of the solid push rod, an action head is arranged at the front end of the action hollow pipe, a clamping jaw is arranged on the action head through a pin, a first fixing head and a second fixing head are arranged at the front end of the fixed hollow pipe, and grooves for embedding the clamping jaw are formed in the first fixing head and the second fixing head; the tail end of the action hollow pipe is connected with a first external driving assembly, and the tail end of the fixed hollow pipe is connected with a second external driving assembly. According to the three-jaw opening and closing grabbing mechanism, an external driving assembly is combined, opening and closing of the clamping jaws are achieved by controlling actions of different original rods, and then separation of products and packages is achieved.

Description

Technical Field

[0001] The utility model relates to an opening and closing grabbing mechanism, in particular to an opening and closing grabbing mechanism which can be used to separate a product from a packaging bag. Background Art

[0002] During the dialyzer assembly process, the membrane filaments need to be separated from the packaging film. During the separation process, when the membrane filaments reach the inside of the dialyzer shell, the membrane filaments need to be fixed in place and the packaging film needs to be pulled separately to separate the membrane filaments from the packaging film. Due to the small diameter of the membrane filaments and the wide variety of models, the traditional manual separation method is very labor-intensive and has extremely low work efficiency. Utility Model Content

[0003] In order to solve the above problems, the utility model provides an opening and closing grabbing mechanism for quickly separating a product from an outer package, and is particularly applicable to the separation of membrane filaments from a coating paper during the production of a dialyzer.

[0004] The utility model adopts the following technical solutions:

[0005] A kind of opening and closing grasping mechanism, radially from inside to outside, is provided with a solid push rod, an action hollow tube, and a fixed hollow tube in sequence, the solid push rod slides inside the action hollow tube, and the action hollow tube slides inside the fixed hollow tube; a pushing head is arranged at the front end of the solid push rod, an action head is arranged at the front end of the action hollow tube, a clamping claw is installed on the action head through a pin, a first fixed head and a second fixed head are arranged at the front end of the fixed hollow tube, and grooves for embedding the clamping claw are arranged on the first fixed head and the second fixed head; the tail end of the action hollow tube is connected to the first external driving component, and the tail end of the fixed hollow tube is connected to the second external driving component.

[0006] Preferably, at least three clamping jaws are used and are arranged equidistantly in the radial direction. Correspondingly, the first fixing head and the second fixing head are provided with grooves of the same number and at the same positions.

[0007] Preferably, an annular groove is provided on the actuating head, the annular groove is in tangential contact with the bottom of the clamping jaw, and the bottom of the clamping jaw is always located in the annular groove, and the opening and closing of the clamping jaw is controlled by the forward or backward movement of the actuating head.

[0008] Preferably, a pointed pin is provided at the top end of the clamping jaw.

[0009] Preferably, the action hollow tube and the solid push rod are slidably connected via first sliding bearings installed at the front and rear ends.

[0010] Preferably, the moving hollow tube and the fixed hollow tube are slidably connected via a second sliding bearing installed at the front end.

[0011] The beneficial effects of the utility model are as follows: the three-claw opening and closing grasping mechanism provided by the utility model, combined with the external driving component, realizes the opening and closing of the clamping jaws by controlling the movements of different original rods, thereby realizing the separation of the product and the package; in addition, by replacing the pushing heads of different shapes, it can meet the needs of different product types, greatly improve the production efficiency, save the number of production personnel, and at the same time effectively ensure the quality of the product during the peeling process. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a cross-sectional view of the gripping device when the three claws are closed.

[0013] Figure 2 It is a cross-sectional view of the gripping device when the three claws are open.

[0014] Figure 3 This is the state diagram when the opening and closing grasping mechanism reaches the working position (the clamping jaws are open).

[0015] Figure 4 This is a state diagram when the opening and closing gripping mechanism separates the product and the packaging film (the clamping jaws are closed).

[0016] Figure 5 This is the left view when the three claws are open.

[0017] Figure 6 It is a schematic diagram of the application of the opening and closing grabbing mechanism. DETAILED DESCRIPTION

[0018] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0019] like Figure 1 and Figure 2The present invention discloses an opening and closing grasping mechanism, which is provided with a solid push rod (1), an action hollow tube (3), and a fixed hollow tube (2) in sequence from the inside to the outside in the radial direction. The action hollow tube (3) and the solid push rod (1) are slidably connected via a first sliding bearing (304) installed at the front and rear ends, so that the solid push rod (1) slides inside the action hollow tube (3); the action hollow tube (3) and the fixed hollow tube (2) are slidably connected via a second sliding bearing (203) installed at the front end, so that the action hollow tube (3) slides inside the fixed hollow tube (2); a pushing head (101) is installed at the front end of the solid push rod (1). ), an actuating head (301) is arranged at the front end of the actuating hollow tube (3), a clamping jaw (302) is installed on the actuating head (301) via a pin (305), a pointed pin (303) is arranged at the top end of the clamping jaw (302), a first fixed head (201) and a second fixed head (202) are arranged at the front end of the fixed hollow tube (2), grooves for embedding the clamping jaw (302) are arranged on the first fixed head (201) and the second fixed head (202); the tail end of the actuating hollow tube (3) is connected to the first external driving component, and the tail end of the fixed hollow tube (2) is connected to the second external driving component.

[0020] The clamping jaws (302) are three in number and are arranged at equal distances in the radial direction. Correspondingly, the first fixing head (201) and the second fixing head (202) are provided with grooves of the same number and at the same positions.

[0021] The actuating head (301) is provided with an annular groove having the same position and number as the grooves. The annular groove is in tangential contact with the bottom of the clamping jaw (302), and the bottom of the clamping jaw (302) is always located in the annular groove. The opening and closing of the clamping jaw (302) is controlled by the forward or backward movement of the actuating head (301).

[0022] like Figure 6 As shown, when working, when the moving mechanism (electric cylinder 4) carries the opening and closing grasping mechanism to the product to be separated, the three clamping jaws 302 open, and the moving mechanism (electric cylinder) continues to move forward, pushing the head 101 into the packaging film. At this time, the first external driving component (first cylinder 5) drives the hollow tube 3 to move backward, causing the clamping jaws 302 to close and enter the three grooves opened by the fixed head 201 and the fixed head 202. The top of the clamping jaw 302 is equipped with a pointed pin 303, which can enable the clamping jaw to reliably grasp the packaging film, and the pushing head 101 entering the packaging film can block the product.

[0023] The second external driving component (the second cylinder 6) drives the fixed hollow tube 2 and the moving hollow tube 3 to move backward at the same time, and the solid rod 1 remains stationary. Due to the blocking of the product by the pushing head 1, the clamping claw 302 pulls the packaging film backward, and finally the three-claw grasping mechanism achieves the effect of separating the product and the packaging film.

Claims

1. An opening and closing grabbing mechanism, characterized in that: A solid push rod (1), an actuating hollow tube (3), and a fixed hollow tube (2) are sequentially arranged from the inside to the outside along the radial direction. The solid push rod (1) slides inside the actuating hollow tube (3), and the actuating hollow tube (3) slides inside the fixed hollow tube (2). A pushing head (101) is arranged at the front end of the solid push rod (1), an actuating head (301) is arranged at the front end of the actuating hollow tube (3), a clamping claw (302) is installed on the actuating head (301) through a pin (305), a first fixed head (201) and a second fixed head (202) are arranged at the front end of the fixed hollow tube (2), and grooves for embedding the clamping claw (302) are arranged on the first fixed head (201) and the second fixed head (202); the tail end of the actuating hollow tube (3) is connected to a first external driving component, and the tail end of the fixed hollow tube (2) is connected to a second external driving component.

2. An opening and closing grabbing mechanism according to claim 1, characterized in that: At least three clamping jaws (302) are used and are arranged at equal distances in the radial direction. Correspondingly, the first fixing head (201) and the second fixing head (202) are provided with grooves of the same number and at the same positions.

3. The opening and closing grabbing mechanism according to claim 1, characterized in that: The actuating head (301) is provided with an annular groove, which is in tangential contact with the bottom of the clamping jaw (302), and the bottom of the clamping jaw (302) is always located in the annular groove, and the opening and closing of the clamping jaw (302) is controlled by the forward or backward movement of the actuating head (301).

4. An opening and closing grabbing mechanism according to claim 1, 2 or 3, characterized in that: The top end of the clamping jaw (302) is provided with a pointed pin (303).

5. The opening and closing grabbing mechanism according to claim 1, characterized in that: The action hollow tube (3) and the solid push rod (1) are slidably connected via first sliding bearings (304) installed at the front and rear ends.

6. The opening and closing grabbing mechanism according to claim 1, characterized in that: The moving hollow tube (3) and the fixed hollow tube (2) are slidably connected via a second sliding bearing (203) installed at the front end.

Images