A rubber band feeding device

Abstract

A rubber band feeding device comprises a base, which is fixedly connected to a bottom plate by screws. The invention is characterized in that a rubber band tensioning and closing mechanism and a rubber band peeling mechanism are arranged on the bottom plate. The invention has a simple structure, low cost and is suitable for binding bags of various calibers.

Description

Technical Field

[0001] The invention relates to the technical field of manipulators, in particular to a rubber band feeding device. Background Art

[0002] The robot body is an automatic operating device that can imitate certain movements of human hands and arms, and is used to grab, move objects or operate tools according to a fixed program. At present, rubber band feeding is generally done manually, relying on the human hand to stretch the rubber band and then put it on the object. However, long-term repetitive labor can easily lead to fatigue, and manual operation is inefficient, making it difficult to achieve mass production. It takes a lot of labor to bundle items in large quantities, which is not conducive to maximizing the interests of manufacturers.

[0003] The utility model patent with the Chinese patent authorization announcement number CN210592593U and the authorization announcement date of May 22, 2020 discloses a rubber band binding manipulator, including a manipulator assembly and a chuck for controlling the closing and opening of the manipulator assembly; the manipulator assembly includes a mounting seat and a mechanical finger that can rotate synchronously and is evenly mounted on the mounting seat; a pushing mechanism is installed on the mounting seat. Under the control of the chuck, the mechanical finger can open the rubber band to bind the material, and then unload the material through the pushing mechanism. The structure is simple and easy to use. However, in this design, the rubber band is stretched by the mechanical finger, and the pushing mechanism located in the mechanical finger is used for unloading. When the bag mouth is large and the rubber band needs to be stretched wider, the inner diameter of the stretching section on the mechanical finger will exceed the diameter of the push block on the pushing mechanism, resulting in the push block only passing through the stretched rubber band when advancing, and the rubber band cannot be pushed out, and the entire device will fail. The device has a small scope of application and cannot meet the needs of multi-specification binding bags. Summary of the invention

[0004] The purpose of the present invention is to overcome the above problems existing in the prior art and to provide a rubber band feeding device which has a simple structure, low cost and is suitable for binding bags of various calibers.

[0005] In order to achieve the above-mentioned purpose, the solution of the present invention is: a rubber band feeding device, including a base, which is fixedly connected to the bottom plate by screws, and is characterized in that: a rubber band tensioning and closing mechanism and a rubber band peeling mechanism are arranged on the bottom plate; the rubber band tensioning and closing mechanism includes stretching arms symmetrically arranged on the left and right sides of the bottom plate, the stretching arms are connected to the bottom plate through a vertical mounting plate and a horizontal mounting plate, the stretching arms are horizontally placed along the direction of the bottom plate, the vertical mounting plate is vertically connected to the horizontal mounting plate located on the bottom plate, the horizontal mounting plate is fixed to the bottom plate by bolts, the stretching arm includes a stretching cylinder, the piston rod of the stretching cylinder is connected to a push plate perpendicular to the bottom plate, the vertical mounting plate A sensor connecting plate is vertically connected to the upper part, an L-shaped sensor mounting block is connected to the sensor connecting plate, a groove is arranged on the connecting part of the sensor mounting block and the sensor connecting plate, a micro switch is arranged on the sensor mounting block, and the push plates on the two stretching arms are placed opposite to each other; the rubber band peeling mechanism comprises a cylinder fixing block and a pushing cylinder, the pushing cylinder is placed vertically with the stretching cylinder, the pushing cylinder body is connected to the cylinder fixing block, a mounting block and an L-shaped rubber band stopper block are connected in sequence in front of the piston rod of the pushing cylinder, four pins parallel to the piston rod of the pushing cylinder are installed on the mounting block, and four corresponding shaft holes are arranged on the rubber band stopper block for the pins to pass through.

[0006] The horizontal mounting plate and the vertical mounting plate are provided with reinforcing ribs, and the reinforcing ribs are a step structure.

[0007] The beneficial effects of the present invention are as follows: 1. In the present design, a rubber band tensioning and closing mechanism and a rubber band peeling mechanism are arranged on the bottom plate. When in use, the rubber band is hung on the push plates (both located on the outside of the push plates) of the stretching arms on both sides. When the piston rod of the stretching cylinder is reset, the rubber band is pulled open to form a vertical square surface, which is perpendicular to the rubber band blocking block. Since the height of the push plate is fixed, the height of the plane formed after the rubber band is pulled open is also fixed, and the rubber band blocking block can push it out, which is suitable for various types of binding bags.

[0008] 2. In this design, four pins parallel to the piston rod of the push cylinder are installed on the mounting block, and four corresponding axial holes are provided on the rubber band stop block for the pins to pass through. The pins not only act as guide columns, but also can be used to position the binding bags. The structure is simple and easy to use.

[0009] 3. In this design, reinforcing ribs are provided on the horizontal mounting plate and the vertical mounting plate. The reinforcing ribs are a step structure, which makes the entire device more stable and can remain stable during the stretching and pushing process of the cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the structure of the present invention;

[0011] Figure 2is a schematic diagram of the rubber band tensioning and closing mechanism in the present invention in an open state;

[0012] Figure 3 is a schematic diagram of the rubber band tensioning and closing mechanism of the present invention in a folded state;

[0013] Figure 4 It is a structural schematic diagram of the rubber band peeling mechanism in the present invention;

[0014] Figure 5 It is a structural schematic diagram of the rubber band tensioning and closing mechanism in the present invention.

[0015] Among them: base 1, bottom plate 2, horizontal mounting plate 3, vertical mounting plate 4, reinforcing rib 5, stretching cylinder 6, pushing cylinder 7, mounting block 8, rubber band blocking block 9, cylinder fixing block 10, pin 11, micro switch 12, sensor mounting plate 13, sensor mounting block 14, rubber band peeling mechanism 50, rubber band opening and closing mechanism 60, stretching arm 61, pushing plate 62. DETAILED DESCRIPTION

[0016] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments: Figures 1 to 5 A rubber band feeding device comprises a base 1, wherein the base 1 is fixedly connected to a bottom plate 2 by screws, and a rubber band tensioning and closing mechanism 60 and a rubber band peeling mechanism 50 are arranged on the bottom plate 2; the rubber band tensioning and closing mechanism 60 comprises stretching arms 61 symmetrically arranged on the left and right sides of the bottom plate 2, the stretching arms 61 are connected to the bottom plate 2 by a vertical mounting plate 4 and a horizontal mounting plate 3, the stretching arms 61 are horizontally placed along the direction of the bottom plate 2, the vertical mounting plate 4 is vertically connected to the horizontal mounting plate 3 located on the bottom plate 2, the horizontal mounting plate 3 is fixed to the bottom plate 2 by bolts, the stretching arm 61 comprises a stretching cylinder 6, the piston rod of the stretching cylinder 6 is connected to a push plate 62 perpendicular to the bottom plate 2, and a sensor connecting plate 13 is vertically connected to the vertical mounting plate 4 , an L-shaped sensor mounting block 14 is connected to the sensor connecting plate 13, a groove is provided on the sensor mounting block 14 at the connecting portion with the sensor connecting plate 13, a micro switch 12 is provided on the sensor mounting block 14, and the push plates 62 on the two stretching arms 61 are placed opposite to each other; the rubber band peeling mechanism 50 includes a cylinder fixing block 10 and a pushing cylinder 7, the pushing cylinder 7 is placed vertically to the stretching cylinder 6, the pushing cylinder 7 body is connected to the cylinder fixing block 10, and the front of the piston rod of the pushing cylinder 7 is connected with a mounting block 8 and an L-shaped rubber band stopper block 9 in sequence, four pins 11 parallel to the piston rod of the pushing cylinder 7 are installed on the mounting block 8, and four corresponding shaft holes are provided on the rubber band stopper block 9 for the pins 11 to pass through.

[0017] The horizontal mounting plate 3 and the vertical mounting plate 4 are provided with reinforcing ribs 5, and the reinforcing ribs 5 are of a step structure.

[0018] The present invention comprises a rubber band opening and closing mechanism 60 and a rubber band peeling mechanism 50; the rubber band opening and closing mechanism 60 is used to open the rubber band fitted thereon so that the diameter of the rubber band is larger than the cross-sectional area of ​​the binding bag; the rubber band peeling mechanism 50 is arranged behind the rubber band opening and closing mechanism 60 and is used to scrape off the opened rubber band so that the rubber band can be fitted on an object to bind it; please refer to Figure 5 The rubber band tensioning and closing mechanism 60 includes: a horizontal mounting plate 3 and a vertical mounting plate 4 are three-dimensionally arranged on the bottom plate 2; the reinforcing rib 5 and the horizontal mounting plate 3 are connected to the vertical mounting plate 4, and the reinforcing rib 5 is designed as a step structure with two threaded holes in the middle; a sensor connecting plate 13 is vertically arranged on the vertical mounting plate 4, and the other end of the sensor connecting plate 13 is connected to the sensor mounting block 14, and a micro switch 12 is installed at one end of the sensor mounting block 14; the sensor mounting block 14 is designed as an L-shaped structure and a groove is provided in the middle part connected to the sensor connecting plate 13. The micro switch 12 uses a specified stroke and a specified force to perform an opening and closing action to drive the rubber band tensioning and closing mechanism 60 to move; the stretching cylinder 6 is fixedly connected to the rubber band tensioning and closing mechanism 60, and the stretching cylinder 6 provides power to push the rubber band tensioning and closing mechanism 60 to perform an opening and closing movement to tighten the rubber band; please refer to Figure 4 and Figure 5 The piston rod of the pushing cylinder 7 is fixedly connected to the mounting block 8, four pins 11 are installed on the mounting block 8, and the rubber band blocking block 9 is provided with four axial holes for the pins 11 to pass through, so as to feed the rubber bands one by one; the rubber band blocking block 9 is fixedly connected to the front of the cylinder fixing block 10, and the rubber band blocking block 9 is provided with four axial holes for the pins 11 to pass through. When the pin 11 leaves the pin hole, the rubber band on the pin 11 is scraped off by the rubber band blocking block 9, so that the rubber band can be fitted onto the object to bundle it.

[0019] In this design, the bottom plate 2 is provided with a rubber band tensioning and closing mechanism 60 and a rubber band peeling mechanism 50. When in use, the rubber band is hung on the push plates 62 (both located outside the push plates 62) of the stretching arms 61 on both sides. When the piston rod of the stretching cylinder 6 is reset, the rubber band is pulled open to form a vertical square surface, which is perpendicular to the rubber band blocking block 9. Since the height of the push plate 62 is fixed, the height of the plane presented after the rubber band is pulled open is also fixed. The rubber band blocking block 9 can push it out, which is suitable for various types of binding bags. In this design, four pins 11 parallel to the piston rod of the push cylinder 7 are installed on the mounting block 10. Four corresponding shaft holes are provided on the rubber band blocking block 9 for the pins 11 to pass through. The pins 11 not only play the role of guide columns, but also can be used to position the binding bag. The structure is simple and easy to use. In this design, the horizontal mounting plate 3 and the vertical mounting plate 4 are provided with reinforcing ribs 5, which are step structures, so that the whole device is more stable and can remain stable during the stretching and pushing process of the cylinder. The above is only a specific description of the present invention, and does not represent all the ways in which the present invention is implemented. Equivalent changes and modifications made on the basis of the purpose and technical solution of the present invention are all within the scope of patent protection of the present invention.

Claims

1. A rubber band feeding device, comprising a base (1), wherein the base (1) is fixedly connected to a bottom plate (2) by screws, and characterized in that: The bottom plate (2) is provided with a rubber band opening and closing mechanism (60) and a rubber band peeling mechanism (50); The rubber band tensioning and closing mechanism (60) comprises a stretching arm (61) symmetrically arranged on the left and right sides of the base plate (2), the stretching arm (61) being connected to the base plate (2) via a vertical mounting plate (4) and a horizontal mounting plate (3), the stretching arm (61) being placed horizontally along the direction of the base plate (2), the vertical mounting plate (4) being vertically connected to the horizontal mounting plate (3) located on the base plate (2), the horizontal mounting plate (3) being fixed to the base plate (2) via bolts, the stretching arm (61) comprising a stretching cylinder (6), the piston rod of the stretching cylinder (6) being connected to a push plate (62) perpendicular to the base plate (2), the vertical mounting plate (4) being vertically connected to a sensor connecting plate (13), the sensor connecting plate (13) being connected to an L-shaped sensor mounting block (14), a groove being provided on the sensor mounting block (14) at a portion connected to the sensor connecting plate (13), a micro switch (12) being provided on the sensor mounting block (14), and the push plates (62) on the two stretching arms (61) being placed opposite to each other; The rubber band peeling mechanism (50) comprises a cylinder fixing block (10) and a pushing cylinder (7), wherein the pushing cylinder (7) and the stretching cylinder (6) are arranged vertically, the pushing cylinder (7) body is connected to the cylinder fixing block (10), the front of the piston rod of the pushing cylinder (7) is connected in sequence with a mounting block (8) and an L-shaped rubber band stopper block (9), the mounting block (8) is mounted with four pins (11) parallel to the piston rod of the pushing cylinder (7), and the rubber band stopper block (9) is provided with four corresponding shaft holes for the pins (11) to pass through.

2. A rubber band feeding device according to claim 1, characterized in that: The horizontal mounting plate (3) and the vertical mounting plate (4) are provided with reinforcing ribs (5), and the reinforcing ribs (5) are of a step structure.

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