Telescopic sleeve rubber band mechanism

Abstract

The invention discloses a telescopic sleeve rubber band mechanism, which relates to the technical field of equipment tools, and comprises an opening and closing actuator, a rubber band column, a material pushing actuator and a material pushing plate, the rubber band columns and the material pushing plates are arranged in a staggered mode in the circumferential direction of the same central axis, the opening and closing actuator is fixedly installed on the upper bottom plate, the output end of the opening and closing actuator is fixedly installed at the rear ends of the rubber band columns, and the output drives the rubber band columns to expand outwards or retract in the radial direction of the central axis. The pushing actuator is fixedly installed on the upper bottom plate, the output end of the pushing actuator is fixedly installed on the pushing plates, and the pushing actuator outputs to drive the pushing plates to move forwards or backwards in a translational mode. According to the rubber band taking device, the material pushing actuator drives the rubber band column to be expanded outwards and folded to achieve rubber band taking, the material pushing actuator drives the material pushing plate to push the rubber band forwards from the rubber band column to the end of a protection bag or a thin film arranged on a workpiece in a sleeving mode, and the rubber band is instantly folded, bound and fixed at the end of the protection bag or the thin film through elasticity of the rubber band. The automatic rubber band taking and binding device mechanically realizes automatic rubber band taking and binding, does not need manual participation, and is efficient and convenient.

Description

Technical Field

[0001] The invention relates to the technical field of equipment tooling, and in particular to a mechanism for sleeve-mounting a rubber band. Background Art

[0002] Covering the workpiece with a protective bag or film is a common workpiece protection method in workpiece processing. The protective bag or film covered on the workpiece is often fixed and tightened by a rubber band tied at the end to prevent the protective bag or film from falling off the workpiece and to achieve separation of the environment inside and outside the protective bag or film.

[0003] Through prior art search, there are the following known technical solutions: Prior art 1: a rubber band set device Application number: CN202121212076.2, application date: 2021.06.01, publication (announcement) date: 2021.12.07.

[0004] Prior art 1 provides a rubber band set device, which relates to the technical field of bundling equipment, including a fixing mechanism, a rubber band expansion mechanism and a rubber band transmission mechanism; in a specific bundling process, the fixing mechanism includes a clamping assembly, and the rubber band transmission mechanism can slide back and forth relative to the fixing mechanism, and the rubber band can be initially stretched and opened by the rubber band expansion mechanism, and the stretched and opened rubber band can be driven to the position of the clamping assembly by the rubber band transmission mechanism, and the clamping assembly is used to abut the rubber band outside the rubber band transmission mechanism, so that the rubber band is transferred to the position of the clamping assembly based on its own elastic force, so that the rubber band can be accurately set on the outside of the folded plastic bag, alleviating the technical problem that the rubber band cannot be tied to the outside of the plastic bag in the prior art, resulting in low plastic bag bundling efficiency and easy matching failure.

[0005] Prior art 2: Application number: CN202310371883.6, application date: 2023.04.04, publication (announcement) date: 2023.07.25.

[0006] The optimal technology 2 discloses a glove rubber band bundling mechanism, including a glove placement device and a bundling drive device arranged on a machine base, a rubber band connecting device, a rubber band stretching and pushing device are arranged above the bundling drive device, and the bundling drive device can drive the rubber band connecting device, the rubber band stretching and pushing device to move forward and backward and left and right on one side of the glove placement device, and a structure in which the bundling drive device cooperates with the rubber band connecting device, the rubber band stretching and pushing device to control the rubber band connecting device, the rubber band stretching and pushing device to move forward and backward and left and right, so that the rubber band connecting device can connect the rubber band and stretch the rubber band forward and backward, and the rubber band stretching and pushing device can stretch the rubber band up and down, so that the rubber band expands to the surroundings until it is large enough to fit into the cuff of the folded gloves; a structure in which the glove placement device cooperates with other devices is adopted to automatically bundling the rubber bands at the cuff of the folded gloves, thereby improving the automation level of glove bundling.

[0007] However, the gloves in prior art 1 and prior art 2 are equivalent to the protective bag or film put on the workpiece, and the technical effect achieved is actually to tie the rubber band on the protective bag or film itself, but is not suitable for tying the rubber band on the protective bag or film put on the outside of the workpiece, especially for the workpiece with a larger end face area.

[0008] Through the above search, it is found that the above technical solutions do not affect the novelty of the present invention; and the mutual combination of the above prior arts does not destroy the creativity of the present invention. Summary of the invention

[0009] The present invention provides a telescopic rubber band mechanism in order to avoid the above-mentioned deficiencies in the prior art.

[0010] The present invention adopts the following technical solution to solve the technical problem: a telescopic sleeve rubber band mechanism, the upper base plate is used as a structure for supporting the connection, including an opening and closing actuator, a rubber band column, a push actuator and a push plate; At least three rubber rods and at least three push plates are staggeredly arranged around the same central axis; The fixed end of the opening and closing actuator is fixedly mounted on the upper base plate, and the output end is fixedly mounted on the rear end of the rubber rod column, and the output drives each of the rubber rod columns to expand or retract radially along the central axis; The fixed end of the push actuator is fixedly mounted on the upper base plate, and the output end is fixedly mounted on the push plate, and the output drives each push plate to move forward or backward in translation; The minimum gap between each push plate and each adjacent rubber band column is smaller than the diameter of the rubber band.

[0011] Furthermore, the opening and closing actuator and the rubber rod column, and the pushing actuator and the pushing plate are respectively arranged in one-to-one correspondence; The output end of the opening and closing actuator outputs a linear motion along the radial direction of the central axis, driving the corresponding rubber column to expand or contract radially; the output end of the pushing actuator outputs a linear motion along the axial direction of the central axis, driving the corresponding pushing plate to move forward or backward along the axial direction of the central axis.

[0012] Furthermore, it also includes a linear guide rail and a guide rail slider; The linear guide rails are correspondingly arranged on the upper base plate at positions corresponding to the rubber columns along the expansion or contraction paths of the rubber columns, and each rubber column is connected to the corresponding linear guide rail and the opening and closing actuator by means of the guide rail slider which is simultaneously installed in a sliding cooperation with the corresponding linear guide rail and fixedly installed with the output end of the corresponding opening and closing actuator.

[0013] Furthermore, during the forward or backward translation of the push plate, the gap between it and two adjacent rubber band columns remains consistent.

[0014] Furthermore, the rubber band column includes a pair of columns arranged in pairs.

[0015] Furthermore, the axis of the column is arranged parallel to the central axis.

[0016] Further, it also includes an air suction cylinder; Each of the push plates and each of the rubber band columns are located at the outer periphery in front of the front end of the suction cylinder, and the rear end of the suction cylinder is connected to a negative pressure air source.

[0017] Furthermore, the axis of the air suction cylinder is arranged to coincide with the central axis.

[0018] Further, it also includes a fixed plate and a telescopic actuator; The fixed plate serves as a frame, the fixed end of the telescopic actuator is fixedly mounted on the fixed plate, and the output end outputs and drives the bottom plate to move forward or backward in translation.

[0019] Further, it also includes a guide shaft and a lower base plate; Each of the guide shafts is arranged around the central axis in a circumferential direction parallel to the central axis and penetrates the fixed plate, and a sliding pair is formed between the fixed plate and the fixed plate to support the guide shaft to move forward or backward relative to the fixed plate along the central axis; The two ends of the guide shaft are respectively connected and fixed to the upper base plate and the lower base plate; The output end of the telescopic actuator is fixedly mounted on the lower base plate, and drives the base plate to translate forward or backward along the axial direction of the central axis through the lower base plate and each of the guide shafts.

[0020] The present invention provides a telescopic rubber band mechanism, which has the following beneficial effects: 1. The present invention realizes the taking of rubber bands by driving the rubber band column to expand and retract through the pushing actuator, and drives the pushing plate to push the rubber band from the rubber band column forward to the end of the protective bag or film sleeved on the workpiece through the pushing actuator, and utilizes the elasticity of the rubber band to instantly shrink, tie and fix the rubber band at the end of the protective bag or film, thereby mechanized automatic taking and tying of rubber bands is realized without manual intervention, which is efficient and convenient.

[0021] 2. The present invention is provided with an air suction cylinder, which performs negative pressure suction on the end opening of the protective bag or film sleeved on the workpiece before tying the rubber band, so that the protective bag or film is in a tightened state fitting the workpiece when tying the rubber band, avoiding the failure of rubber band tying caused by excessive opening of the end of the protective bag or film, which is beneficial to ensuring the working stability of the telescopic rubber band mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the present invention.

[0023] In the figure: 1. Vacuum cylinder, 2. Push plate, 3. Push actuator, 4. Rubber column, 5. Linear guide rail, 6. Opening and closing actuator, 7. Base plate, 8. Fixed plate, 9. Guide shaft, 10. Lower base plate, 11. Telescopic actuator. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in combination with the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] A telescopic rubber band mechanism, such as Figure 1 As shown, the structural relationship is as follows: the upper base plate 7 is used as a structure for supporting the connection, including an opening and closing actuator 6, a rubber column 4, a push actuator 3 and a push plate 2; At least three rubber rods 4 and at least three push plates 2 are staggeredly arranged around the same central axis; The fixed end of the opening and closing actuator 6 is fixedly mounted on the upper base plate 7, and the output end is fixedly mounted on the rear end of the rubber column 4, and the output drives each rubber column 4 to expand or retract radially along the central axis; The fixed end of the push actuator 3 is fixedly mounted on the upper base plate 7, and the output end is fixedly mounted on the push plate 2, and the output drives each push plate 2 to move forward or backward in translation; The minimum gap between each push plate 2 and each adjacent rubber band column 4 is smaller than the diameter of the rubber band.

[0026] Preferably, the opening and closing actuator 6 and the rubber rod column 4 and the pushing actuator 3 and the pushing plate 2 are respectively arranged in a one-to-one correspondence; The output end of the opening and closing actuator 6 outputs a linear motion along the radial direction of the central axis, driving the corresponding rubber column 4 to expand or contract radially; the output end of the pushing actuator 3 outputs a linear motion along the axial direction of the central axis, driving the corresponding pushing plate 2 to move forward or backward along the axial direction of the central axis.

[0027] Preferably, it also includes a linear guide rail 5 and a guide rail slider; Linear guide rails 5 are correspondingly arranged on the upper base plate 7 at positions corresponding to the rubber columns 4 along the expansion or contraction paths of the rubber columns 4. Each rubber column 4 is installed and connected to the corresponding linear guide rail 5 and the opening and closing actuator 6 by means of a guide rail slider which is simultaneously installed in a sliding cooperation with the corresponding linear guide rail 5 and fixedly installed at the output end of the corresponding opening and closing actuator 6.

[0028] Preferably, during the forward or backward translation of the push plate 2, the gap between it and two adjacent rubber bars 4 remains consistent.

[0029] Preferably, the rubber band column 4 includes a pair of columns arranged in pairs.

[0030] Preferably, the axis of the cylinder is arranged parallel to the central axis.

[0031] Preferably, it also includes an air suction cylinder 1; Each push plate 2 and each rubber rod column 4 are located at the outer periphery in front of the front end of the suction cylinder 1, and the rear end of the suction cylinder 1 is connected to a negative pressure gas source.

[0032] Preferably, the axis of the air suction cylinder 1 is arranged to coincide with the central axis.

[0033] Preferably, it also includes a fixing plate 8 and a telescopic actuator 11; The fixed plate 10 serves as a frame, the fixed end of the telescopic actuator 11 is fixedly mounted on the fixed plate 10, and the output end outputs the movement of driving the bottom plate 7 to move forward or backward in translation.

[0034] Preferably, it also includes a guide shaft 9 and a lower base plate 10; Each guide shaft 9 is arranged around the central axis in a circumferential direction parallel to the central axis and penetrates the fixed plate 8, and a sliding pair is formed between the fixed plate 8 to support the guide shaft 9 to move forward or backward along the central axis relative to the fixed plate 8; The two ends of the guide shaft 9 are respectively connected and fixed to the upper base plate 7 and the lower base plate 10; The output end of the telescopic actuator 11 is fixedly mounted on the lower base plate 10 , and drives the base plate 7 to move forward or backward along the axial direction of the central axis through the lower base plate 10 and the guide shafts 9 .

[0035] Before using the telescopic rubber band mechanism to tie the rubber band to the end of the workpiece covered with a protective bag or film, the fixing plate 8 and the front end mechanism for adjusting the position and posture of the telescopic rubber band mechanism should be installed and fixed. The process of tying the rubber band includes the following steps: In the first step, each opening and closing actuator 6 drives each rubber column 4 to radially retract along the central axis, and the telescopic actuator 11 drives the bottom plate 7 to extend forward, driving each push plate 2 and each rubber column 4 to move forward until each push plate 2 and each rubber column 4 are extended to the outer periphery of the front end of the suction cylinder 1.

[0036] In the second step, the front end mechanism adjusts the position and posture of the telescopic sleeve rubber band mechanism so that the telescopic sleeve rubber band mechanism is close to the rubber band preliminary opening mechanism used for rubber band feeding, and the front end of each rubber band column 4 is extended into the initially opened rubber band.

[0037] In the third step, each opening and closing actuator 6 drives each rubber band column 4 to expand the rubber band radially outward along the central axis, and transfers the rubber band from the rubber band preliminary opening mechanism to each rubber band column 4, so as to realize the tensioning and material taking of the rubber band; In the fourth step, the front end mechanism adjusts the position and posture of the telescopic sleeve rubber band mechanism so that the telescopic sleeve rubber band mechanism is close to the workpiece, and the front end of the suction cylinder 1 is aligned with the end opening of the protective bag or film set on the workpiece.

[0038] In the fifth step, the telescopic actuator 11 drives the bottom plate 7 to retract backward, driving each push plate 2 and each rubber column 4 to move backward to the front end of the suction cylinder 1 and extend to the front side of each push plate 2 and each rubber column 4, and the negative pressure air source starts to work immediately, and air is sucked through the suction cylinder 1, so that the protective bag or film on the surface of the workpiece is tightened to the surface of the workpiece.

[0039] In the sixth step, each opening and closing actuator 6 drives each rubber column 4 to radially retract along the central axis, and the telescopic actuator 11 drives the bottom plate 7 to extend forward, driving the tensioned rubber bands on each rubber column 4 to move forward to the binding position; each pushing actuator 3 then drives each pushing plate 2 to move forward, pushing the rubber bands tensioned on each rubber column 4 forward, so that the rubber bands are detached from each rubber column 4, and instantly shrink under the action of their own elastic force, and are tied to the end of the protective bag or film set on the workpiece.

[0040] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0041] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A telescopic rubber band mechanism, wherein the upper base plate (7) is used as a structure for supporting the connection, characterized in that: It comprises an opening and closing actuator (6), a rubber rod column (4), a material pushing actuator (3) and a material pushing plate (2); At least three rubber rod columns (4) and at least three push plates (2) are staggeredly arranged in the circumferential direction around the same central axis; The fixed end of the opening and closing actuator (6) is fixedly mounted on the upper base plate (7), and the output end is fixedly mounted on the rear end of the rubber rod column (4), and the output drives each of the rubber rod columns (4) to move radially outwardly or retracting along the central axis; The fixed end of the push actuator (3) is fixedly mounted on the upper base plate (7), and the output end is fixedly mounted on the push plate (2), and the output drives each push plate (2) to move forward or backward in a translational manner; The minimum gap between each push plate (2) and each adjacent rubber band column (4) is smaller than the diameter of the rubber band.

2. A telescopic rubber band mechanism according to claim 1, characterized in that: The opening and closing actuator (6) and the rubber rod column (4) and the pushing actuator (3) and the pushing plate (2) are respectively arranged in a one-to-one correspondence; The output end of the opening and closing actuator (6) outputs a linear motion along the radial direction of the central axis, driving the corresponding rubber column (4) to expand or contract radially; the output end of the pushing actuator (3) outputs a linear motion along the axial direction of the central axis, driving the corresponding pushing plate (2) to move forward or backward along the axial direction of the central axis.

3. A telescopic rubber band mechanism according to claim 1 or 2, characterized in that: It also includes a linear guide rail (5) and a guide rail slider; The linear guide rails (5) are correspondingly arranged on the upper base plate (7) at positions corresponding to the rubber columns (4) along the expansion or contraction paths of the rubber columns (4); and each rubber column (4) is connected to the corresponding linear guide rail (5) and the opening and closing actuator (6) by means of a guide rail slider which is simultaneously installed in a sliding manner with the corresponding linear guide rail (5) and fixedly installed with the output end of the corresponding opening and closing actuator (6).

4. A telescopic rubber band mechanism according to claim 1 or 2, characterized in that: During the forward or backward translation of the push plate (2), the gap between it and two adjacent rubber rod columns (4) remains consistent.

5. A telescopic rubber band mechanism according to claim 4, characterized in that: The rubber band column (4) comprises a pair of columns arranged in pairs.

6. A telescopic rubber band mechanism according to claim 5, characterized in that: The axis of the column is arranged parallel to the central axis.

7. The telescopic rubber band mechanism according to claim 1, characterized in that: It also includes an air suction cylinder (1); Each of the push plates (2) and each of the rubber rod columns (4) are located on the outer periphery in front of the front end of the suction cylinder (1), and the rear end of the suction cylinder (1) is connected to a negative pressure gas source.

8. A telescopic rubber band mechanism according to claim 7, characterized in that: The axis of the air suction cylinder (1) is arranged to coincide with the central axis.

9. The telescopic rubber band mechanism according to claim 7, characterized in that: It also includes a fixing plate (8) and a telescopic actuator (11); The fixed plate (10) serves as a frame, the fixed end of the telescopic actuator (11) is mounted and fixed to the fixed plate (10), and the output end outputs and drives the bottom plate (7) to move forward or backward in translation.

10. A telescopic rubber band mechanism according to claim 9, characterized in that: It also includes a guide shaft (9) and a lower base plate (10); Each of the guide shafts (9) is arranged around the central axis in a circumferential direction thereof and parallel to the central axis, penetrating the fixed plate (8), and a sliding pair is formed between the guide shaft (9) and the fixed plate (8) to support the guide shaft (9) to move forward or backward along the central axis relative to the fixed plate (8); The two ends of the guide shaft (9) are respectively connected and fixed to the upper base plate (7) and the lower base plate (10); The output end of the telescopic actuator (11) is fixedly mounted on the lower base plate (10), and drives the base plate (7) to move forward or backward along the axial direction of the central axis via the lower base plate (10) and each of the guide shafts (9).

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