Pitch changing mechanism

Abstract

The utility model discloses a variable pitch mechanism, including I-shaped mounting rack and be equipped with drive mechanism, guide mechanism, reclaiming mechanism and connecting part on the mounting rack, drive mechanism and guide mechanism are connected and are used for driving the guide mechanism to move along the first direction, the guide mechanism is equipped with the guide part that is connected with reclaiming mechanism, and the connecting part is equipped with the guide part that is connected with reclaiming mechanism. The material taking mechanism can be arranged on the mounting frame in a sliding mode in the second direction, the guiding mechanisms and the material taking mechanism are arranged on the two sides of the mounting frame, the connecting part is arranged in the center of the mounting frame, and the driving mechanism is arranged on the two sides of the connecting part and located between the guiding mechanisms; the stability of the variable-pitch mechanism in the action process of the manipulator is guaranteed, the influence of the driving mechanism on the stability of the variable-pitch mechanism is avoided, meanwhile, the driving mechanism is located between the guide mechanisms and used for driving the guide mechanisms to act, space is utilized in place, the whole variable-pitch mechanism is high in symmetry, and the space utilization rate is increased within a limited space. And the material taking quantity and the mechanism stability can be ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of pitch change, in particular to a pitch change mechanism. Background Art

[0002] After the blister machine punches the entire page of blisters into individual blisters, it outputs them to one place, receives front-end information through PLC, sorts qualified products from unqualified products, and grabs qualified products and puts them into the next process. Because the blister layout is arranged as compactly as possible under a certain size to reduce waste edges, the distance between each blister is certain. Because the next process requires another spacing to meet the needs, a transfer variable distance structure is needed to realize the sorting and transfer functions, which can realize the classification and sorting of blisters. There are many difficulties such as materials that need to be variable distance and small spacing. The applicable scenario is not only for blister boxing and transportation, but also for variable distance transportation between other materials.

[0003] Existing variable distance mechanisms, such as a variable distance suction mechanism recorded in publication number CN214988627U, include a base plate, a variable distance component, a drive component and a plurality of suction components, wherein the drive component is mounted on the base plate. The suction component includes a suction connector, a suction platform and a suction cylinder, wherein the suction connector is mounted on the side of the suction cylinder close to the base plate, the suction platform is mounted on the bottom side of the suction cylinder, and a plurality of suction holes are arranged on the bottom side of the suction platform, wherein the inner cavity of the suction cylinder is in communication with the suction holes. The problem of variable distance of materials is solved, but in the case of limited space, how to achieve the situation where there are many materials that need to be variable in distance, and when a large amount of materials are sucked, the stability of the variable distance mechanism is also a problem. Utility Model Content

[0004] The purpose of the utility model is to provide a variable distance mechanism, which solves the problem of how to achieve variable distance when there are many materials under the condition of limited space in the prior art, and how to ensure the stability of the variable distance mechanism when a large amount of materials is sucked.

[0005] The utility model is implemented as follows: a variable pitch mechanism comprises an I-shaped mounting frame and a driving mechanism, a guiding mechanism, a material picking mechanism and a connecting portion arranged on the mounting frame, wherein the driving mechanism is connected with the guiding mechanism to drive the guiding mechanism to move along a first direction, a guiding portion connected with the material picking mechanism is provided on the guiding mechanism, the material picking mechanism can be slidably arranged on the mounting frame along a second direction, the guiding mechanism and the material picking mechanism are arranged on both sides of the mounting frame, the connecting portion is arranged at the center of the mounting frame, and the driving mechanism is arranged on both sides of the connecting portion and between the guiding mechanisms.

[0006] Compared with the existing design of the material picking mechanism on one side of the mounting frame, the utility model places the material picking mechanism on both sides of the mounting frame, which increases the number of materials picked up and can meet the needs of the case where there are many variable-pitch materials. However, how to ensure the stability of the variable-pitch mechanism on both sides of the mounting frame is also a problem, and the problem of limited space also needs to be solved. Since the connecting part connected to the manipulator is arranged at the center of the mounting frame, the stability of the variable-pitch mechanism during the operation of the manipulator is ensured, and the driving mechanism is located on both sides of the connecting part to avoid the influence of the driving mechanism on the stability of the variable-pitch mechanism. At the same time, the driving mechanism is located between the guide mechanisms to drive the guide mechanisms to move. The space is fully utilized and the symmetry of the entire variable-pitch mechanism is strong. In a limited space, the number of materials picked up can be ensured while ensuring the stability of the mechanism.

[0007] The driving mechanism drives the guide mechanism to move in the first direction. Since the material-retrieving mechanism is connected to the guide mechanism, when the guide mechanism moves in the first direction, the material-retrieving mechanism can be driven to move in the second direction. Multiple material-retrieving mechanisms slide along the second direction on the mounting frame to cooperate with the guide part, so that the distance between the material-retrieving mechanisms can be changed. When the guide mechanism moves in the first direction, the material-retrieving mechanism can slide in the second direction through the guide part.

[0008] A further technical solution of the utility model is that the guide mechanism can be slidably arranged on the mounting frame along the first direction.

[0009] The guide mechanism is slidably arranged on the mounting frame along a first direction. When the driving mechanism drives the guide mechanism to move, the guide mechanism can slide along the first direction to ensure the stability of the guide mechanism movement.

[0010] A further technical solution of the utility model is that the material taking mechanism is placed between the mounting frame and the guide mechanism.

[0011] One side of the material taking mechanism is slidably connected to the mounting frame and the other side is slidably connected to the guide mechanism, so that when the material taking mechanism slides along the mounting frame through the guide mechanism, the material taking mechanism has strong stability.

[0012] A further technical solution of the utility model is: the guide part is a plurality of strip grooves, and the material taking mechanism is provided with rollers matched with the strip grooves.

[0013] The strip grooves are arranged along the length direction of the guide mechanism, and rollers that move along the strip grooves are provided on the material picking member; when the guide mechanism is in motion, the rollers move in the strip grooves, and due to the inclined setting of the strip grooves, the distance between the material picking mechanisms changes, thereby increasing or reducing the distance between the material picking mechanisms and completing the distance change.

[0014] A further technical solution of the utility model is: the mounting frame includes two side plates, a connecting plate placed between the side plates for connecting the side plates, and an end plate placed at the end of the side plates for sliding connection with the guide mechanism, and the driving mechanism is placed between the side plates.

[0015] The space between the two side plates is used to install the driving mechanism, which not only reduces the space occupation but also ensures the stability of the variable pitch mechanism; the end plates provided at the ends of the side plates are used to be slidably connected with the guide mechanism, so that the material-retrieving mechanism is placed in the space surrounded by the side plates, the end plates and the guide mechanism, and the two sides of the material-retrieving mechanism are respectively connected to the mounting seat and the guide mechanism to ensure the movement stability of the material-retrieving mechanism.

[0016] A further technical solution of the utility model is: the driving mechanism is a cylinder or a linear motor.

[0017] The driving mechanism can make the guide mechanism move in a straight line; this can be achieved by using a cylinder or a linear motor.

[0018] A further technical solution of the utility model is that the output end of the driving mechanism is connected to the guide mechanisms on both sides of the mounting frame through a connecting piece.

[0019] The output end of the driving mechanism is connected to the guide mechanism through a connecting piece, so that the guide mechanisms on both sides of the mounting frame can move synchronously to ensure the overall stability of the pitch-changing mechanism.

[0020] A further technical solution of the utility model is that a magnetic switch for detecting the position of the output end of the driving mechanism is provided above the connecting piece.

[0021] The magnetic switch can detect the position of the output end of the driving mechanism, so that the variable distance between the material taking mechanisms can be adjusted according to the detection result of the magnetic switch.

[0022] A further technical solution of the utility model is that: the connecting piece is provided with an avoidance groove for avoiding the material taking mechanism.

[0023] The material taking part of the material taking mechanism is below the material taking mechanism, and the power end of the material taking mechanism is above the material taking mechanism. In order to avoid the influence of the connecting piece on the working process of the material taking mechanism, an avoidance groove is provided on the connecting piece.

[0024] A further technical solution of the utility model is: the driving mechanism is used to drive the guide mechanism to rise and fall, and there are multiple material taking mechanisms which can slide horizontally along the mounting frame.

[0025] When the guide mechanism is lifted or lowered, the material taking mechanism can slide in the horizontal direction through the guide part, and the distance between multiple material taking mechanisms can be changed through the guide part.

[0026] The beneficial effects of the utility model are as follows: compared with the existing design of the material picking mechanism on one side of the mounting frame, the utility model places the material picking mechanism on both sides of the mounting frame, which increases the amount of material picking and can meet the needs of the case where there are many variable-pitch materials. However, how to ensure the stability of the variable-pitch mechanism on both sides of the mounting frame is also a problem, and the problem of limited space also needs to be solved. Since the connecting part connected to the manipulator is arranged at the center of the mounting frame, the stability of the variable-pitch mechanism during the operation of the manipulator is ensured, and the driving mechanism is located on both sides of the connecting part to avoid the influence of the driving mechanism on the stability of the variable-pitch mechanism. At the same time, the driving mechanism is located between the guide mechanisms to drive the guide mechanisms to move. The space is fully utilized and the symmetry of the entire variable-pitch mechanism is strong. In a limited space, the amount of material picking can be ensured while ensuring the stability of the mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a three-dimensional structural schematic diagram of a pitch-changing mechanism provided by the utility model;

[0028] Figure 2 This is a front view of a pitch-changing mechanism provided by the utility model;

[0029] Figure 3 It is a top view of a pitch-changing mechanism provided by the utility model;

[0030] Figure 4 It is a bottom view of a pitch-changing mechanism provided by the utility model;

[0031] Figure 5 It is a side view of a pitch-changing mechanism provided by the utility model;

[0032] Figure 6 It is a stereoscopic diagram from another viewing angle of a distance-changing mechanism provided by the utility model.

[0033] Reference numerals: 1. mounting frame, 11. side plate, 12. connecting plate, 13. end plate,

[0034] 2. Driving mechanism,

[0035] 3. Guide mechanism, 31. Guide part,

[0036] 4. Material taking mechanism, 41. Roller,

[0037] 5. Connecting part, 6. Connecting piece. DETAILED DESCRIPTION

[0038] The following is an explanation of the implementation of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention.

[0039] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of the present specification are only used to match the contents disclosed in the specification for people familiar with the technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present utility model, so they have no substantial technical significance. Any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effects and purposes that can be achieved by the present utility model, should still fall within the scope of the technical contents disclosed by the present utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in the present specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present utility model. The change or adjustment of the relative relationship, without substantial change of the technical contents, should also be regarded as the scope of the implementation of the present utility model.

[0040] Embodiment 1:

[0041] Figure 1-6 A variable pitch mechanism is shown, including an I-shaped mounting frame 1 and a driving mechanism 2, a guiding mechanism 3, a material picking mechanism 4, and a connecting portion 5 arranged on the mounting frame 1. The driving mechanism 2 is connected to the guiding mechanism 3 to drive the guiding mechanism 3 to move along a first direction. The guiding mechanism 3 is provided with a guiding portion 31 connected to the material picking mechanism 4. The material picking mechanism 4 can be slidably arranged on the mounting frame 1 along a second direction. The guiding mechanism 3 and the material picking mechanism 4 are arranged on both sides of the mounting frame 1, the connecting portion 5 is placed at the center of the mounting frame 1, and the driving mechanism 2 is placed on both sides of the connecting portion 5 and between the guiding mechanism 3.

[0042] Compared with the existing design of the material picking mechanism on one side of the mounting frame, the utility model places the material picking mechanism on both sides of the mounting frame, which increases the number of materials picked up and can meet the needs of the case where there are many variable-pitch materials. However, how to ensure the stability of the variable-pitch mechanism on both sides of the mounting frame is also a problem, and the problem of limited space also needs to be solved. Since the connecting part connected to the manipulator is arranged at the center of the mounting frame, the stability of the variable-pitch mechanism during the operation of the manipulator is ensured, and the driving mechanism is located on both sides of the connecting part to avoid the influence of the driving mechanism on the stability of the variable-pitch mechanism. At the same time, the driving mechanism is located between the guide mechanisms to drive the guide mechanisms to move. The space is fully utilized and the symmetry of the entire variable-pitch mechanism is strong. In a limited space, the number of materials picked up can be ensured while ensuring the stability of the mechanism.

[0043] The driving mechanism drives the guide mechanism to move in the first direction. Since the material-retrieving mechanism is connected to the guide mechanism, when the guide mechanism moves in the first direction, the material-retrieving mechanism can be driven to move in the second direction. Multiple material-retrieving mechanisms slide along the second direction on the mounting frame to cooperate with the guide part, so that the distance between the material-retrieving mechanisms can be changed. When the guide mechanism moves in the first direction, the material-retrieving mechanism can slide in the second direction through the guide part.

[0044] In this embodiment, the guide mechanism 3 is slidably disposed on the mounting frame 1 along a first direction.

[0045] The guide mechanism is slidably arranged on the mounting frame along a first direction. When the driving mechanism drives the guide mechanism to move, the guide mechanism can slide along the first direction to ensure the stability of the guide mechanism movement.

[0046] In this embodiment, slide rails are provided at both ends of the mounting frame for sliding up and down with the guide mechanism, and slide rails are provided on both sides of the mounting frame for horizontal sliding of the material picking mechanism. The material picking mechanism is located between the mounting frame and the guide mechanism. During the distance change process of the material picking mechanism, the material picking mechanism has high stability and is not easy to shake or deviate.

[0047] In this embodiment, the material taking mechanism 4 is placed between the mounting frame 1 and the guide mechanism 3 .

[0048] One side of the material taking mechanism is slidably connected to the mounting frame and the other side is slidably connected to the guide mechanism, so that when the material taking mechanism slides along the mounting frame through the guide mechanism, the material taking mechanism has strong stability.

[0049] In this embodiment, the guide portion 31 is a plurality of strip-shaped grooves, and the material taking mechanism 4 is provided with rollers 41 that cooperate with the strip-shaped grooves.

[0050] The strip grooves are arranged along the length direction of the guide mechanism, and rollers that move along the strip grooves are provided on the material picking member; when the guide mechanism is in motion, the rollers move in the strip grooves, and due to the inclined setting of the strip grooves, the distance between the material picking mechanisms changes, thereby increasing or reducing the distance between the material picking mechanisms and completing the distance change.

[0051] In this embodiment, the first direction is a vertical direction, and the second direction is a horizontal direction; the guide portion is a strip groove, and a roller that can slide along the strip groove is provided on the material picking mechanism. When the guide mechanism moves along the first direction, the material picking mechanism slides along the strip groove under the action of the roller, wherein there are multiple strip grooves and they are arranged in a horizontal direction, and the strip grooves gradually incline from top to bottom toward the center line of the guide mechanism in the width direction, and the roller can reciprocate along the strip groove to change the distance between the material picking mechanisms.

[0052] In this embodiment, the mounting frame 1 includes two side plates 11, a connecting plate 12 placed between the side plates 11 for connecting the side plates 11, and an end plate 13 placed at the ends of the side plates 11 for sliding connection with the guide mechanism 3, and the driving mechanism 2 is placed between the side plates 11.

[0053] The space between the two side plates is used to install the driving mechanism, which not only reduces the space occupation but also ensures the stability of the variable pitch mechanism; the end plates provided at the ends of the side plates are used to be slidably connected with the guide mechanism, so that the material-retrieving mechanism is placed in the space surrounded by the side plates, the end plates and the guide mechanism, and the two sides of the material-retrieving mechanism are respectively connected to the mounting seat and the guide mechanism to ensure the movement stability of the material-retrieving mechanism.

[0054] In this embodiment, there are two side panels, and the material-picking mechanisms are placed on the outside of the side panels and arranged along the length direction of the side edges. There are as many material-picking mechanisms as possible to ensure the quantity of materials picked up. The connecting plate is used to connect the two side panels, and a storage space for accommodating the driving mechanism is formed between the two side panels. The driving mechanism is arranged between the two side panels, and the space is reasonably utilized. In addition, the gravity of the driving mechanism is easily distributed symmetrically on the mounting frame, thereby ensuring the stability of the variable pitch mechanism.

[0055] In this embodiment, the end plate is perpendicular to the side plate, and both ends of the guide mechanism are slidably connected to the end plate respectively. A storage space with upper and lower openings is formed between the guide mechanism, the end plate and the side plate. The air inlet end of the material picking mechanism extends from the upper end of the storage space, and the material picking end of the material picking mechanism extends from the lower end of the storage space.

[0056] In this embodiment, the driving mechanism 2 is a cylinder or a linear motor.

[0057] The driving mechanism can make the guide mechanism move in a straight line; this can be achieved by using a cylinder or a linear motor.

[0058] In this embodiment, the output end of the driving mechanism 2 is connected to the guide mechanisms 3 on both sides of the mounting frame 1 through the connecting piece 6 .

[0059] The output end of the driving mechanism is connected to the guide mechanism through a connecting piece, so that the guide mechanisms on both sides of the mounting frame can move synchronously to ensure the overall stability of the pitch-changing mechanism.

[0060] In this embodiment, the driving mechanism is placed on the center line of the accommodation space surrounded by the two side plates and is symmetrical with respect to the connecting portion, thereby ensuring the stability of the pitch-changing mechanism.

[0061] In this embodiment, a magnetic switch for detecting the position of the output end of the driving mechanism 2 is provided above the connecting member 6 .

[0062] The magnetic switch can detect the position of the output end of the driving mechanism, so that the variable distance between the material taking mechanisms can be adjusted according to the detection result of the magnetic switch.

[0063] In this embodiment, the connecting member 6 is provided with an avoidance groove for avoiding the material taking mechanism 4 .

[0064] The material taking part of the material taking mechanism is below the material taking mechanism, and the power end of the material taking mechanism is above the material taking mechanism. In order to avoid the influence of the connecting piece on the working process of the material taking mechanism, an avoidance groove is provided on the connecting piece.

[0065] In this embodiment, the material taking mechanism takes materials by suction, and an air inlet end is provided on the top of the material taking mechanism, and the air inlet end passes through the avoidance groove on the connecting piece and is connected to the air source.

[0066] In this embodiment, the driving mechanism 2 is used to drive the guide mechanism 3 to move up and down, and there are multiple material taking mechanisms 4 that can slide horizontally along the mounting frame 1.

[0067] When the guide mechanism is lifted or lowered, the material taking mechanism can slide in the horizontal direction through the guide part, and the distance between multiple material taking mechanisms can be changed through the guide part.

[0068] In this embodiment, the connecting portion is connected to the manipulator, and the connecting portion is coaxially connected to the connecting end of the manipulator.

[0069] The working principle of the utility model: compared with the existing design of the material picking mechanism on one side of the mounting frame, the utility model places the material picking mechanism on both sides of the mounting frame, which increases the number of materials picked up and can meet the use of the variable pitch material in the case of a large number of variable pitch materials. However, how to ensure the stability of the variable pitch mechanism on both sides of the mounting frame is also a problem, and the problem of limited space also needs to be solved; since the connecting part connected to the manipulator is arranged at the center of the mounting frame, the stability of the variable pitch mechanism during the operation of the manipulator is ensured, and the driving mechanism is located on both sides of the connecting part to avoid the influence of the driving mechanism on the stability of the variable pitch mechanism. At the same time, the driving mechanism is located between the guide mechanism to drive the guide mechanism to move. The space is fully utilized and the symmetry of the entire variable pitch mechanism is strong. In a limited space, the number of materials picked up can be ensured while ensuring the stability of the mechanism.

[0070] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A pitch-changing mechanism, characterized in that: The invention comprises an I-shaped mounting frame (1), a driving mechanism (2), a guiding mechanism (3), a material taking mechanism (4), and a connecting portion (5) arranged on the mounting frame (1); the driving mechanism (2) is connected to the guiding mechanism (3) and is used to drive the guiding mechanism (3) to move along a first direction; the guiding mechanism (3) is provided with a guiding portion (31) connected to the material taking mechanism (4); the material taking mechanism (4) can be slidably arranged on the mounting frame (1) along a second direction; the guiding mechanism (3) and the material taking mechanism (4) are arranged on both sides of the mounting frame (1); the connecting portion (5) is arranged at the center of the mounting frame (1); the driving mechanism (2) is arranged on both sides of the connecting portion (5) and is located between the guiding mechanism (3).

2. A pitch-changing mechanism according to claim 1, characterized in that: The guide mechanism (3) can be slidably arranged on the mounting frame (1) along a first direction.

3. A pitch-changing mechanism according to claim 1, characterized in that: The material taking mechanism (4) is placed between the mounting frame (1) and the guide mechanism (3).

4. A pitch-changing mechanism according to claim 1, characterized in that: The guide portion (31) is a plurality of strip-shaped grooves, and the material taking mechanism (4) is provided with rollers (41) that cooperate with the strip-shaped grooves.

5. A pitch-changing mechanism according to claim 1, characterized in that: The mounting frame (1) comprises two side plates (11), a connecting plate (12) disposed between the side plates (11) and used to connect the side plates (11), and an end plate (13) disposed at the ends of the side plates (11) and used to be slidably connected to the guide mechanism (3); the driving mechanism (2) is disposed between the side plates (11).

6. A pitch-changing mechanism according to claim 1, characterized in that: The driving mechanism (2) is a cylinder or a linear motor.

7. A pitch-changing mechanism according to claim 1, characterized in that: The output end of the driving mechanism (2) is connected to the guide mechanisms (3) on both sides of the mounting frame (1) via a connecting piece (6).

8. A pitch-changing mechanism according to claim 7, characterized in that: A magnetic switch for detecting the position of the output end of the drive mechanism (2) is provided above the connecting member (6).

9. A pitch-changing mechanism according to claim 7, characterized in that: The connecting piece (6) is provided with an avoidance groove for avoiding the material taking mechanism (4).

10. The pitch-changing mechanism according to claim 1, characterized in that: The driving mechanism (2) is used to drive the guide mechanism (3) to move up and down, and the material taking mechanism (4) is multiple and can slide horizontally along the mounting frame (1).

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