A single-drive double-action linkage structure and transplanting mechanism

Abstract

The present invention discloses a single-drive double-action linkage structure and a transplanting mechanism, which belong to the field of automation equipment. The single-drive double-action linkage structure includes a bracket and a first drive element, a first actuating part, a second actuating part and a linkage assembly installed on the bracket, wherein the linkage assembly includes a rocking arm, a steering spring and a reset spring. When the present invention is working, the first drive element drives the first actuating part to move in the first direction to complete the first action; when the first action is completed, the rocking arm is switched from the initial position to the completion position through the linkage assembly, and then the second actuating part is driven to move in the second direction under the drive of the reset spring to complete the second action; the two actions are completed in sequence, and the operation is smooth and stable, and only one power element is used in the whole process, which is simpler in structure and control, reduces hardware costs, and improves the applicability of the present invention.

Description

Technical Field

[0001] The invention relates to the field of automation equipment, and in particular to a single-drive double-action linkage structure and a transplanting mechanism. Background Art

[0002] At present, in the design process of automation equipment, it is common to have two action "chain reactions": after one action is completed, the other action is completed immediately. For example, the material return structure in the box dismantling mechanism, the stacking plate dismantling mechanism, and the transplanting mechanism. After the material return mechanism pushes the material out as a whole, it must also complete the lifting action to form a gap between the material and the bottom surface so that a forklift or other transfer mechanism can be inserted and then the material can be transferred away; or in other cases, the material is adhered to the bottom surface due to its stickiness, which is not conducive to cleaning and transfer. In this case, it is also necessary to lift the material to a certain height to form a gap between the material and the bottom surface. The characteristics of this structure are: the two actions are one after the other, which are chain actions with unchanged order, and in most cases the stroke is fixed and has no special features.

[0003] In existing automation equipment, the most common solution is to use two cylinders to control one of the actions respectively, and finally complete the linkage. The disadvantages of this solution are: 1. Two cylinders require two sets of control systems, which are more complex in structure and increase hardware costs; 2. The order between the two control systems needs to be accurately adjusted to ensure the smoothness of the chain reaction, which increases the difficulty of control.

[0004] In view of this, it is necessary to propose a new technical solution to solve the above technical problems. Summary of the invention

[0005] The purpose of the present invention is to solve the above-mentioned problems in the prior art and to provide a single-drive double-action linkage structure and a transplanting mechanism, which has the advantages of simple structure, stable operation, simple control and wide applicability.

[0006] To achieve the above purpose, the present invention adopts the following technical means:

[0007] A single-drive double-action linkage structure comprises a bracket and a first driving element, a first actuating part, a second actuating part and a linkage assembly mounted on the bracket;

[0008] The first driving element is connected to the first actuating part and is used to push the first actuating part to move back and forth in a first direction;

[0009] The second actuating part is movably mounted on the first actuating part and can move back and forth in a second direction relative to the first actuating part;

[0010] The linkage assembly is installed between the first actuating part, the second actuating part and the bracket, and includes a rocking arm, a steering tension spring and a return tension spring;

[0011] The bracket is provided with two limit points, the rocking arm is pivotally connected to the bracket so as to swing up and down, and the pivot point of the rocking arm is not colinear with the two limit points, and the two limit points are used to respectively define the upper limit position and the lower limit position of the rocking arm;

[0012] The end of the rocking arm away from the limit point is provided with a toggle convex point downwardly, one end of the steering tension spring is connected to the toggle convex point, and the other end is connected to the upper limit point;

[0013] The upper end of the reset spring is connected to the first actuating part, and the other end is connected to the second actuating part, and the reset spring is used to provide a pulling force to move the second actuating part upward;

[0014] Wherein, a toggle wheel is provided at one end of the second actuating part close to the bracket, and the toggle wheel always abuts against the bottom edge of the rocking arm.

[0015] As a further improvement, one end of the rocking arm close to the limit point is bent downward to form a curved portion. When the rocking arm is at the upper limit position, the upper limit point is just received in the recessed portion of the curved portion. At this time, the center line of the steering spring is below the rotation point of the rocking arm.

[0016] As a further improvement, the first driving element includes a cylinder.

[0017] As a further improvement, the invention further comprises a first guide element, and the first actuating part is mounted on the first guide element so as to be movable back and forth.

[0018] As a further improvement, the first guide element includes a slide rail and a slider, the slide rail is fixedly mounted on the bracket, and the slider is movably mounted on the slide rail;

[0019] The first actuating part is fixedly connected to the sliding block.

[0020] As a further improvement, the bracket includes a bottom plate and two vertical plates fixed on both sides of the bottom plate, and a movable space is formed between the two vertical plates and the bottom plate;

[0021] The first actuating part includes a supporting portion and a running portion located on both sides of the supporting portion, wherein the supporting portion is formed by sinking the middle portion of a rectangular plate;

[0022] During assembly, the supporting part is located in the activity space, and the walking part is installed on the top of the corresponding vertical board.

[0023] As a further improvement, the second actuating part is plate-shaped and is installed in parallel inside the supporting part; a second guide element is provided between the first actuating part and the second actuating part, and the second guide element is used to ensure that the second actuating part moves back and forth in the second direction.

[0024] As a further improvement, the first direction and the second direction are perpendicular to each other;

[0025] The second guide element includes a plurality of guide posts perpendicular to the bottom wall of the supporting portion, and the second actuating part is provided with a plurality of guide holes, and the guide holes correspond to the guide posts one by one.

[0026] As a further improvement, a travel avoidance hole is respectively provided on the two side walls of the supporting part, and a toggle wheel is respectively provided at both ends of the second actuating part; the toggle wheel passes through the corresponding travel avoidance hole and abuts against the lower side of the rocking arm.

[0027] A transplanting mechanism comprises the above-mentioned single-drive double-linkage linkage structure.

[0028] Compared with the prior art, the present invention brings the following technical effects:

[0029] When the present invention is working, the first driving element drives the first actuating part to move in the first direction to complete the first action; when the first action is completed, the transmission action of the linkage assembly causes the rocking arm to switch from the initial position to the completion position, and then drives the second actuating part to move in the second direction driven by the reset spring, thereby completing the second action; the two actions are completed successively, and the operation is smooth and stable; the whole process uses only one power element, which is simpler in structure and control than the method of using two power elements in the prior art, reduces hardware costs, and greatly improves the applicability of the present invention in the field of automation equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0031] Figure 1 The three-dimensional structure diagram of the single-drive double-action linkage structure of the first embodiment is shown (due to the symmetry of the structure, only one side is cut out for illustration);

[0032] Figure 2The structural diagram of the rocking arm of the single-drive double-action linkage structure of the first embodiment is shown;

[0033] Figure 3 A side view of the single-drive double-action linkage structure of the first embodiment is shown.

[0034] Description of main component symbols:

[0035] 1- bracket; 11- bottom plate; 12- vertical plate; 2- first driving element; 21- piston rod; 3- first actuating part; 31- supporting part; 32- walking part; 35- guide column; 36- travel avoidance hole; 4- second actuating part; 41- toggle wheel; 51- slide rail; 52- slider; 61- rocking arm; 611- toggle convex point; 612- bending part; 62- steering spring; 63- reset spring; Q1- upper limit position; Q2- lower limit position; S- pivot point; a- recessed part; b- upper recessed part; M- center line. DETAILED DESCRIPTION

[0036] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0037] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0038] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0039] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0041] The present invention provides a single-drive double-action linkage structure and a transplanting mechanism, wherein the single-drive double-action linkage structure is applied in automated equipment, such as a box dismantling mechanism, a stacking plate dismantling mechanism, and a material return structure in a transplanting mechanism, and is used to complete a two-action chain reaction: first, the material is moved into place in one direction, and then a second action is completed, such as lifting, to cooperate with other processes, such as cutting. The present invention is described in detail below through specific implementation methods.

[0042] Embodiment 1

[0043] See also Figures 1 to 3 This embodiment discloses a single-drive double-action linkage structure, which is used in automation equipment to complete two interlocking actions. The single-drive double-action linkage structure includes a bracket 1 and a first driving element 2, a first actuating part 3, a second actuating part 4 and a linkage assembly installed on the bracket 1.

[0044] The bracket 1 includes a bottom plate 11 and two vertical plates 12 fixed on both sides of the bottom plate 11 , and a movable space is formed between the two vertical plates 12 and the bottom plate 11 .

[0045] The first actuating part 3 is formed by bending a rectangular plate, and specifically includes a supporting portion 31 and running portions 32 located on both sides of the supporting portion 31 . The supporting portion 31 is formed by sinking the middle portion of the rectangular plate, and a horizontally extending running portion 32 is left on both sides of the supporting portion 31 .

[0046] During assembly, the supporting portion 31 is located in the activity space, and the walking portion 32 is installed on the top of the corresponding vertical plate 12. The assembled first actuating part 3 can move back and forth horizontally in the activity space.

[0047] Specifically in this embodiment, the first driving element 2 is a cylinder, the piston rod 21 of the cylinder is connected to the first actuating part 3, and the cylinder body of the cylinder is fixed on the bracket 1, so that the cylinder can drive the first actuating part 3 to move horizontally back and forth in the activity space.

[0048] Furthermore, a first guide element is provided between the first driving element 2 and the first actuating part 3, and the first actuating part 3 is mounted on the first guide element so as to be movable back and forth. Specifically, the first guide element includes a slide rail 51 and a slider 52, the slide rail 51 is fixedly mounted on the bracket 1, and the slider 52 is mounted on the slide rail 51 so as to be movable back and forth; more specifically, in this embodiment, one of the first guide elements is provided on the top of each of the two vertical plates 12, and each of the first guide elements includes a slide rail 51 and two sliders 52, the slide rail 51 is fixed on the top edge of the vertical plate 12, and the slide rail 51 extends in the same direction as the top edge of the vertical plate 12, and the walking part 32 of the first actuating part 3 is fixedly connected to the two sliders 52; therefore, when the first driving element 2 is working, it can drive the first actuating part 3 to move back and forth stably and horizontally in the activity space.

[0049] In this embodiment, the second actuating part 4 is movably mounted on the first actuating part 3 and can move back and forth in the second direction relative to the first actuating part 3. Specifically, the second actuating part 4 is plate-shaped and is mounted parallel to the inside of the supporting part 31. A second guide element is provided between the first actuating part 3 and the second actuating part 4, and the second guide element is used to ensure that the second actuating part 4 moves back and forth in the second direction.

[0050] Specifically, in this embodiment, the first direction and the second direction are perpendicular to each other, specifically: the first direction is the X direction, and the second direction is the Y direction. The second guide element includes a plurality of guide posts 35 perpendicular to the bottom wall of the supporting portion 31, and the second actuating part 4 is provided with a plurality of guide holes (not shown in the figure), and the guide holes correspond to the guide posts 35 one by one. The second guide element can move up and down in the Y direction under the limitation of the guide posts 35.

[0051] More specifically, the two side walls of the supporting portion 31 are respectively provided with a travel avoidance hole 36, and the two ends of the second actuating part 4 are respectively provided with a toggle wheel 41 extending outward; during assembly, the toggle wheel 41 passes through the corresponding travel avoidance hole 36 and extends to the inner side of the first actuating part 3.

[0052] Specifically in this embodiment, the linkage assembly is installed between the first actuating part 3 , the second actuating part 4 and the bracket 1 , and includes a rocker arm 61 , a steering tension spring 62 and a return tension spring 63 .

[0053] Specifically, a set of linkage components is provided on both sides of the bracket 1, and the two sets of linkage components are symmetrically arranged. Taking one side as an example, the following description is made:

[0054] One of the vertical plates 12 has an inner wall with two upper and lower limit points, namely, an upper limit point Q1 and a lower limit point Q2. The swing arm 61 is specifically a long strip bar (such as Figure 2 As shown), the rocking arm 61 is pivotally connected to the inner wall of the vertical plate 12 so as to swing up and down, and the pivot point S of the rocking arm 61 is not colinear with the two limit points, which are used to respectively limit the upper limit position and the lower limit position of the rocking arm 61 when it swings.

[0055] Specifically, the end of the rocking arm 61 away from the limit point is provided with a downwardly protruding toggle protrusion 611, one end of the steering tension spring 62 is connected to the toggle protrusion 611, and the other end is connected to the upper limit point Q1.

[0056] Preferably, one end of the rocking arm 61 close to the limit point is bent downward to form a bending portion 612. When the rocking arm 61 is at the upper limit position, the upper limit point Q1 is just received in the recessed portion a of the bending portion 612. At this time, the center line M of the steering spring 62 is located below the rotation point of the rocking arm 61.

[0057] The upper end of the return spring 63 is connected to the first actuating part 3 , and the other end is connected to the second actuating part 4 . The return spring 63 is used to provide a pulling force to move the second actuating part 4 upward.

[0058] It should be noted that after assembly, the rocker arm 61 and the steering spring 62 are located between the first actuating part 3 and the vertical plate 12, and the reset spring 63 is located in the inner space of the supporting part 31 (such as Figure 1 The two driving wheels 41 of the second actuating part 4 always abut against the bottom edge of the rocking lever 61.

[0059] The working principle of the single-drive double-action linkage structure of this embodiment is as follows:

[0060] See also Figure 3 When the left end of the rocking rod 61 swings to the upper limit position Q1, the entire structure is in the initial position. At this time, the second actuating part 4 is closely attached to the bottom wall of the supporting part 31, and the reset tension spring 63 is in a stretched state; the toggle wheel 41 of the second actuating part 4 is located at the upper concave part b below the left end of the rocking rod 61.

[0061] The first driving element 2 works, driving the first actuating part 3 to move horizontally from left to right. During this process, the second actuating part 4 moves horizontally from left to right along with the first actuating part 3 under the lateral limitation of the guide column 35, and there is no relative movement between the two parts. At this time, the position of the rocking arm 61 remains unchanged, that is, it is in the initial position, the elongation of the steering tension spring 62 is L1, and the driving wheel 41 of the second actuating part 4 also moves from left to right along the lower side of the rocking arm 61 at the same time.

[0062] As the first actuating part 3 and the second actuating part 4 move to the right together, when the toggle wheel 41 moves to the right end of the rocking arm 61, that is, to the position of the toggle protrusion 611, the toggle wheel 41 starts to push the toggle protrusion 611 upward. At this time, the entire structure completes the first action, that is, carrying the material to move horizontally for a distance.

[0063] Next, the toggle wheel 41 continues to push the toggle convex point 611, so that the right end of the rocking arm 61 swings upward, and the rocking arm 61 finally swings to the completion position. At this time, the left end of the rocking arm 61 is located at the lower limit position Q2, and the elongation of the steering spring 62 is L3. It should be noted that when the rocking arm 61 switches from the initial position to the completion position, it needs to pass through an intermediate position. The elongation of the steering spring 62 corresponding to the intermediate position is L2, and L2>L1, L2>L3. That is, in the process of switching the rocking arm 61 from the initial position to the completion position, it is necessary to overcome the potential energy of the intermediate position to do work on the steering spring 62, so that it can cross the intermediate position and reach the completion position. This setting of the linkage assembly ensures that the rocking arm 61 will not switch to the completion position before the entire structure completes the first action.

[0064] At the same time, when the toggle wheel 41 pushes the right end of the rocking arm 61 to swing upward, the reset spring 63 contracts, providing an upward elastic driving force, so that the second actuating part 4 moves upward relative to the first actuating part 3, thereby completing the second action, that is, moving the material upward for a certain distance.

[0065] As described above, the present invention, through the ingenious design of the linkage assembly, causes a chain reaction between the first actuating part 3 and the second actuating part 4, and the two parts can complete two actions by sharing one power element. Compared with the prior art, it is simpler in structure and control, and reduces hardware costs. When the first action is completed, the rocker arm 61 is switched from the initial position to the completion position through the transmission action of the linkage assembly, and then the second actuating part 4 is driven to move in the second direction under the drive of the reset spring 63, thereby completing the second action. The two actions are completed in sequence, and the operation is smooth and stable, which greatly improves the applicability of the present invention in the field of automation equipment.

[0066] Embodiment 2

[0067] This embodiment discloses a transplanting mechanism including the single-drive double-action linkage structure of the first embodiment, and the transplanting mechanism is applied in automatic loading and unloading equipment for silicone rubber.

[0068] The main function of the transplanting mechanism is to move the silicone rubber material horizontally to the cutting station, and then the cutting device completes the cutting action. During this process, the transplanting mechanism needs to lift the material to a certain height to ensure that the silicone rubber will not stick to the bottom surface.

[0069] It can be seen from the first embodiment that the single-drive double-action linkage structure is assembled on the transplanting mechanism, which can successfully complete the above functions and solve the problem of preventing the silicone rubber from adhering to the bottom surface.

[0070] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0071] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A single-drive double-action linkage structure, characterized in that: It includes a bracket and a first driving element, a first actuating part, a second actuating part and a linkage assembly installed on the bracket; The first driving element is connected to the first actuating part and is used to push the first actuating part to move back and forth in a first direction; The second actuating part is movably mounted on the first actuating part and can move back and forth in a second direction relative to the first actuating part; The linkage assembly is installed between the first actuating part, the second actuating part and the bracket, and includes a rocking arm, a steering tension spring and a return tension spring; The bracket is provided with two limit points, the rocking arm is pivotally connected to the bracket so as to swing up and down, and the pivot point of the rocking arm is not colinear with the two limit points, and the two limit points are used to respectively define the upper limit position and the lower limit position of the rocking arm; The end of the rocking arm away from the limit point is provided with a toggle convex point downwardly, one end of the steering tension spring is connected to the toggle convex point, and the other end is connected to the upper limit point; The upper end of the reset spring is connected to the first actuating part, and the other end is connected to the second actuating part, and the reset spring is used to provide a pulling force to move the second actuating part upward; Wherein, a toggle wheel is provided at one end of the second actuating part close to the bracket, and the toggle wheel always abuts against the bottom edge of the rocking arm.

2. The single-drive double-action linkage structure according to claim 1, characterized in that: One end of the rocking arm close to the limit point is bent downward to form a curved portion. When the rocking arm is located at the upper limit position, the upper limit point is just received in the recessed portion of the curved portion. At this time, the center line of the steering spring is located below the rotation point of the rocking arm.

3. The single-drive double-action linkage structure according to claim 1, characterized in that: The first driving element includes a cylinder.

4. The single-drive double-action linkage structure according to any one of claims 1 to 3, characterized in that: It also includes a first guide element, on which the first actuating part is mounted so as to be movably mounted back and forth.

5. The single-drive double-action linkage structure according to claim 4, characterized in that: The first guide element comprises a slide rail and a slider, the slide rail is fixedly mounted on the bracket, and the slider is movably mounted on the slide rail; The first actuating part is fixedly connected to the sliding block.

6. The single-drive double-action linkage structure according to claim 1, characterized in that: The bracket includes a bottom plate and two vertical plates fixed on both sides of the bottom plate, and a movable space is formed between the two vertical plates and the bottom plate; The first actuating part includes a supporting portion and a running portion located on both sides of the supporting portion, wherein the supporting portion is formed by sinking the middle portion of a rectangular plate; During assembly, the supporting part is located in the activity space, and the walking part is installed on the top of the corresponding vertical board.

7. The single-drive double-action linkage structure according to claim 6, characterized in that: The second actuating part is plate-shaped and is installed in parallel inside the supporting part; a second guide element is provided between the first actuating part and the second actuating part, and the second guide element is used to ensure that the second actuating part moves back and forth in the second direction.

8. The single-drive double-action linkage structure according to claim 7, characterized in that: The first direction and the second direction are perpendicular to each other; The second guide element includes a plurality of guide posts perpendicular to the bottom wall of the supporting portion, and the second actuating part is provided with a plurality of guide holes, and the guide holes correspond to the guide posts one by one.

9. The single-drive double-action linkage structure according to claim 7 or 8, characterized in that: The two side walls of the supporting part are respectively provided with a travel avoidance hole, and the two ends of the second actuating part are respectively provided with a toggle wheel; the toggle wheel passes through the corresponding travel avoidance hole and abuts against the lower side of the rocking arm.

10. A transplanting mechanism, characterized in that: It comprises the single-drive double-action linkage structure as described in any one of claims 1-9.

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