Material positioning device and conveying device

Abstract

The utility model discloses a material positioning device and a conveying device.The material positioning device comprises a driving motor, an output shaft of the driving motor is connected with an adapter, the adapter is provided with an abutting piece, and the abutting piece is used for rotating in a reciprocating mode along a preset path under driving of the driving motor so as to push materials to a designated position, the predetermined path has a starting point corresponding to the initial position of the abutment member and an end point corresponding to the specified position of the material. According to the material positioning device, the driving motor drives the abutting piece to rotate back and forth along the preset path through the adapter, and active pushing and positioning of materials are achieved. The material positioning process achieved through the material positioning device does not depend on friction force transmission any more, so that influences of external factors such as speed fluctuation of the conveying belt are avoided, and the accuracy of the material positioning stage is improved.

Description

Technical Field

[0001] This utility model relates to the field of material conveying technology, and in particular to a material positioning device and a conveying device. Background Technology

[0002] In industrial automated production, conveyor belt systems are a common material handling device. Their basic components include a conveyor belt, a drive unit, a tensioning device, a support structure, and a control system. When the conveyor belt is in operation, the drive unit rotates the drive rollers, and the continuous movement of the belt is achieved through the friction between the belt and the rollers, thus transporting material from one end to the other.

[0003] Traditional conveyor belt systems primarily rely on speed control and timed stops to determine material position. However, in actual operation, due to factors such as conveyor belt speed fluctuations and friction changes, materials often fail to stop precisely at the predetermined position. These influencing factors include unstable motor drives, control system response delays, decreased transmission efficiency due to mechanical wear, conveyor belt material aging, load variations, and environmental factors (such as humidity and temperature). Summary of the Invention

[0004] The main purpose of this utility model is to provide a material positioning device and a conveying device to solve the above-mentioned technical problems.

[0005] In a first aspect, the present invention provides a material positioning device, comprising: a drive motor, wherein the output shaft of the drive motor is connected to an adapter, and an abutment is provided on the adapter. The abutment is used to reciprocate along a predetermined path under the drive of the drive motor to push the material to a designated position, wherein the predetermined path has a starting point corresponding to the initial position of the abutment and an ending point corresponding to the designated position of the material.

[0006] An elastic buffer assembly is provided between the adapter and the abutment to buffer the inertial resistance of the material when the abutment pushes the material.

[0007] A guide structure is provided between the adapter and the abutment to guide the abutment to move relative to the adapter.

[0008] The abutment is provided with a groove, and a limiting member is provided between the groove and the adapter to limit the movable range of the abutment relative to the adapter.

[0009] The adapter includes a pushing part and a resetting part arranged opposite to each other, and the output shaft of the drive motor is connected between the pushing part and the resetting part.

[0010] The guide structure is a guide post disposed between the pushing part and the abutting part, and the elastic buffer assembly is a compression spring, which is sleeved on the outside of the guide post.

[0011] It also includes a photoelectric detection device, which includes a transmitter and a receiver arranged opposite to each other, and the reset part is located between the transmitter and the receiver when the abutment is in the initial position.

[0012] The drive motor is a stepper motor, and the output shaft of the drive motor is connected to the adapter via a coupling.

[0013] Secondly, this utility model also provides a material conveying device, including: a conveyor belt, wherein material positioning devices as described above are respectively provided on opposite sides of the conveyor belt.

[0014] It also includes a starting point photoelectric detection device and an ending point photoelectric detection device for detecting the position of materials.

[0015] The beneficial technical effects of this utility model are as follows: The material positioning device provided by this utility model uses a drive motor to drive the abutment to rotate reciprocally along a predetermined path, thereby realizing the active pushing and positioning of materials. The material positioning process achieved by the material positioning device no longer relies on friction transmission, thus avoiding the influence of external factors such as conveyor belt speed fluctuations and improving the accuracy of the material positioning stage. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A three-dimensional schematic diagram of the material positioning device provided in the embodiment of this utility model;

[0018] Figure 2 An exploded view of the material positioning device provided in this embodiment of the utility model;

[0019] Figure 3 A three-dimensional schematic diagram of the material conveying device provided in the embodiment of this utility model;

[0020] Figure 4 A schematic diagram of the material conveying device and its material positioning device provided in the embodiments of this utility model during use.

[0021] Explanation of reference numerals in the attached figures:

[0022] In the diagram: 10-Drive motor, 11-Motor mounting base, 20-Adapter, 21-Pushing part, 22-Reset part, 23-Connecting part, 30-Abutting part, 31-Slot, 40-Elastic buffer assembly, 50-Limiting part, 60-Coupling, 70-Conveyor belt, 71-Pattern, 80-Guiding structure, 90-Photoelectric detection device, 91-Transmitter, 92-Receiver, 100-Material positioning device, 110-Starting point photoelectric detection device, 111-Ending point photoelectric detection device. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0024] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0025] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0026] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0027] Please also refer to Figures 1-2 ,in Figure 1 A three-dimensional schematic diagram of the material positioning device provided in the embodiment of this utility model; Figure 2 This is an exploded view of the material positioning device provided in an embodiment of the present invention. Existing conveyor belt systems mainly rely on speed control and timed stops to determine material position, which is easily affected by factors such as conveyor belt speed fluctuations and changes in friction, resulting in insufficient material positioning accuracy. The material positioning device 100 provided in this embodiment of the present invention achieves precise material positioning through an active pushing method.

[0028] The material positioning device 100 includes a drive motor 10, the output shaft of the drive motor 10 is connected to an adapter 20, and an abutment 30 is provided on the adapter 20. The abutment 30 is used to reciprocate along a predetermined path under the drive of the drive motor 10 to push the material to a designated position. The predetermined path has a starting point corresponding to the initial position of the abutment 30 and an ending point corresponding to the designated position of the material.

[0029] In this embodiment, the drive motor 10 serves as a power source, and its output shaft is connected to the adapter 20. The drive motor 10 drives the adapter 20 to perform reciprocating rotational motion. The abutment 30 is disposed on the adapter 20, therefore the predetermined path of the abutment 30 is actually a circular arc trajectory. Specifically:

[0030] When the output shaft of the drive motor 10 rotates, the adapter 20 rotates accordingly, causing the abutment 30 on it to perform an arc motion. During operation, the abutment 30 first rotates forward along the arc trajectory from its initial position, pushing the material to the designated position; after pushing, it rotates back along the original arc trajectory to return to its initial position, waiting for the next action.

[0031] The starting point and ending point of the arc trajectory correspond to the initial position of the abutment 30 and the position when the material is pushed into place, respectively. This rotation angle range can be achieved by controlling the rotation angle of the drive motor 10.

[0032] This active pushing method avoids the positioning errors caused by traditional friction-based transmission, and can more accurately control the stopping position of the material.

[0033] In this embodiment, the material positioning device 100 uses a drive motor 10 to drive the adapter 20 to rotate, and the adapter 20 then converts the rotational motion into a pushing force through the abutment member 30. This rotational motion is characterized by smooth movement. At the same time, the arrangement of the material positioning device 100 can be very flexible, making full use of the lateral space of the conveyor belt 70.

[0034] In one embodiment, an elastic buffer assembly 40 is provided between the adapter 20 and the abutment 30 to buffer the inertial resistance of the material when the abutment 30 pushes the material.

[0035] In this embodiment, in order to reduce the impact force when the abutment 30 comes into contact with the material, an elastic buffer assembly 40 is provided between the adapter 20 and the abutment 30. The elastic buffer assembly 40 is specifically a compression spring.

[0036] One end of the spring is fixedly connected to the adapter 20, and the other end is fixedly connected to the abutment 30. When the abutment 30 pushes the material, on the one hand, the inertial resistance of the material is transmitted to the drive motor 10 through the abutment 30, forming a load torque; on the other hand, the spring design allows the abutment 30 to have a certain displacement margin relative to the adapter 20, enabling it to undergo compressive deformation during sudden load changes, thus providing a buffering effect. This design, through the buffering effect of the spring, can slow down the sudden change in load force, reducing the risk of the drive motor 10 losing synchronization to some extent.

[0037] In one embodiment, a guide structure 80 is provided between the adapter 20 and the abutment 30 to guide the abutment 30 to move relative to the adapter 20.

[0038] In this embodiment, to ensure that the abutment 30 can move smoothly relative to the adapter 20, a guide structure 80 is provided between the adapter 20 and the abutment 30. The function of the guide structure 80 is to guide the abutment 30 to move along a predetermined track on the adapter 20, avoiding unexpected behaviors such as tilting or swaying during the rotational pushing process. In this way, by cooperating with the abutment 30, the guide structure 80 can restrict the degree of freedom of the abutment 30, making it move only along the predetermined track, reducing displacement in non-preset directions, thereby improving the accuracy of material positioning.

[0039] In one embodiment, the abutment 30 is provided with a groove 31, and a limiting member 50 is provided between the groove 31 and the adapter 20 to limit the movable range of the abutment 30 relative to the adapter 20.

[0040] In this embodiment, the abutment 30 needs a certain displacement margin to cooperate with the buffering effect of the spring. When the abutment 30 pushes the material, due to the inertial resistance of the material, the abutment 30 will be displaced relative to the adapter 20, thereby compressing the spring. However, this relative displacement cannot be too large. Without the limiting member 50, excessive relative displacement may cause the spring to be over-compressed and lose its elasticity or be damaged.

[0041] Therefore, by providing a slot 31 on the abutment member 30 and utilizing the cooperation between the limiting member 50 and the slot 31, a controllable displacement range is formed. This design ensures that the abutment member 30 has the necessary buffer displacement space while preventing the displacement from exceeding the safe range. At the same time, the limiting member 50 also provides a reliable guiding function for the abutment member 30, helping to maintain the stability of its movement trajectory.

[0042] In this embodiment, the limiting member 50 is specifically a limiting screw.

[0043] In another embodiment, the abutment 30 is provided with a slider (not shown in the figure), and the adapter 20 is correspondingly provided with an annular groove (not shown in the figure). The slider is embedded in the annular groove for guidance. The arc length of the annular groove determines the range of movement of the abutment 30, and the slider is stopped when it moves to the end of the annular groove.

[0044] In one embodiment, the adapter 20 includes a pushing part 21 and a resetting part 22 disposed opposite to each other, and the output shaft of the drive motor 10 is connected between the pushing part 21 and the resetting part 22.

[0045] In this embodiment, the adapter 20 includes two main parts: a pushing part 21 and a resetting part 22, which are arranged opposite to each other. The output shaft of the drive motor 10 is located between the pushing part 21 and the resetting part 22. The pushing part 21 is responsible for transmitting the rotational power of the drive motor 10 to the abutment 30, causing the abutment 30 to reciprocate. The resetting part 22 is used in conjunction with the photoelectric detection device 90 to monitor whether the abutment 30 has correctly returned to its initial position.

[0046] When the adapter 20 returns to its initial position, the reset unit 22 cuts off the optical path of the photoelectric detection device 90, thereby realizing the position detection function. The initial position here refers to the very beginning position when the adapter 20 is in the waiting state and the contact member 30 has not yet come into contact with the material, which corresponds to the starting point of the aforementioned arc trajectory.

[0047] In one specific embodiment, the adapter 20 consists of three parts: a pushing part 21, a connecting part 23, and a resetting part 22. The pushing part 21 and the resetting part 22 are arranged in parallel and connected by the vertical connecting part 23, forming an overall shape resembling a "Z". This design simultaneously achieves the functions of pushing and auxiliary position detection on a single component, simplifying the overall structure.

[0048] In one specific embodiment, the reset part 22 is provided with a light-shielding plate (not shown in the figure). When the adapter 20 returns to the initial position, the light-shielding plate will be inserted between the transmitting end 91 and the receiving end 92 of the photoelectric detection device 90 to cut off the light path, so that the control system can determine whether the abutment 30 has been accurately reset.

[0049] In one embodiment, the guide structure 80 is a guide post disposed between the push part 21 and the abutment 30, and the elastic buffer assembly 40 is a compression spring, which is sleeved on the outside of the guide post.

[0050] In this embodiment, a guide post, specifically a cylindrical pin, is provided between the pushing part 21 and the abutting part 30 as a guide structure 80. The elastic buffer assembly 40 is a compression spring, directly sleeved on the outside of the cylindrical pin. This coaxial design not only saves installation space but also unifies the guiding and buffering functions. The inner diameter of the spring is slightly larger than the outer diameter of the cylindrical pin, ensuring that the spring does not interfere excessively with the cylindrical pin during compression and release, thereby guaranteeing the free compression deformation of the spring and effectively exerting its buffering effect.

[0051] In another embodiment, the guide structure 80 may adopt a dovetail groove guide rail configuration (not shown in the figures). Specifically, a dovetail-shaped protruding guide rail is provided on the pushing part 21, and a corresponding dovetail groove matching the guide rail is provided on the abutment member 30. The elastic buffer assembly 40 is a compression spring located within an accommodating space formed by the pushing part 21 and the abutment member 30. One end of the spring is fixedly connected to the pushing part 21, and the other end is fixedly connected to the abutment member 30.

[0052] In one embodiment, the material positioning device 100 further includes a photoelectric detection device 90, which includes a transmitter 91 and a receiver 92 disposed opposite to each other, and a reset part 22 is located between the transmitter 91 and the receiver 92 when the abutment 30 is in the initial position.

[0053] In this embodiment, the transmitting end 91 and the receiving end 92 are arranged vertically at intervals. The light beam emitted by the transmitting end 91 is received by the receiving end 92, forming an optical path. The reset part 22 is made of a light-shielding material. When the adapter 20 is in the initial position, the reset part 22 will cut off the optical path between the transmitting end 91 and the receiving end 92. By detecting whether the optical path is cut off, it can be accurately determined whether the adapter 20 has returned to the initial position, thereby confirming whether the material positioning device 100 has been correctly reset.

[0054] Only after the photoelectric detection device 90 confirms that the reset part 22 has reached the initial position can the material positioning device 100 start the next pushing action, thereby avoiding the abnormal operation caused by the material positioning device 100 starting the next action before it has fully reset.

[0055] In one specific embodiment, the photoelectric detection device 90 uses a through-beam photoelectric sensor. The transmitting end 91 has a built-in light-emitting diode as a light source to generate a light beam of a certain wavelength; the receiving end 92 has a built-in photodetector to receive the light beam emitted by the transmitting end. When the light beam is blocked, the photodetector of the receiving end 92 detects the change in light intensity and outputs a corresponding electrical signal to the control system.

[0056] In one embodiment, the drive motor 10 is a stepper motor, and the output shaft of the drive motor 10 is connected to the adapter 20 via a coupling 60.

[0057] In this embodiment, a stepper motor is used as the drive motor 10, which features precise angle control and fast response. By controlling the pulse signal of the stepper motor, precise control of the rotation angle can be achieved, thereby ensuring the accuracy of material positioning. The stepper motor is connected to the adapter 20 via a coupling 60. This connection method ensures the reliability of power transmission.

[0058] Figure 3 A three-dimensional schematic diagram of the material conveying device provided in the embodiment of this utility model; Figure 4 A schematic diagram illustrating the use of the material conveying device and its material positioning device provided in this embodiment of the utility model. Figure 3 and Figure 4 As shown, in an embodiment of this utility model, a material conveying device is also provided, including: a conveyor belt 70, and material positioning devices 100 as described in any of the above embodiments are respectively arranged on opposite sides of the conveyor belt 70.

[0059] In this embodiment, two material positioning devices 100 are provided, one installed on the left side of the conveyor belt 70 and the other installed on the right side of the conveyor belt 70. The abutment member 30 of the material positioning device 100 can reciprocate along a predetermined path under the drive of the drive motor 10 to push the material to a designated position. Taking pallet 71 as an example:

[0060] When the pallet 71 on the conveyor belt 70 is conveyed to near the end of the conveyor belt 70, the material positioning devices 100 on both sides operate synchronously, pushing the pallet 71 to the end of the conveyor belt 70 through the rotational movement of the abutment member 30. At this time, the pallet 71 is attached to the end of the conveyor belt 70. This dual-sided positioning design avoids the deflection of the pallet 71 that may be caused by pushing from one side, ensuring the accuracy and stability of the pallet 71 positioning.

[0061] Through the active pushing action of the material positioning device 100, the material conveying device overcomes the shortcomings of traditional positioning based on the friction of the conveyor belt 70, and the positioning accuracy of the pallet 71 will not be affected by factors such as speed fluctuations and friction changes of the conveyor belt 70.

[0062] In this embodiment, the drive motor 10 is fixedly mounted in the lateral space of the conveyor belt 70 via the motor mounting base 11, specifically on the support structure of the conveyor belt 70 (not shown in the figure).

[0063] In one embodiment, the material conveying device further includes a starting point photoelectric detection device 110 and an ending point photoelectric detection device 111 for detecting the position of the material.

[0064] In this embodiment, when the starting photoelectric detection device 110 detects that a tray 71 has entered, the conveyor belt 70 is started to transport the tray 71. When the ending photoelectric detection device detects that the tray 71 has arrived (approaching the tail of the conveyor belt 70), the material positioning device 100 is triggered to start.

[0065] By using the photoelectric detection device 110 at the starting point and the photoelectric detection device 111 at the ending point together, the automatic connection between the conveyor belt 70 and the material positioning device 100 is realized, ensuring the continuity and accuracy of the transportation and positioning process of the pallet 71.

[0066] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A material positioning device, characterized in that, include: A drive motor is provided, the output shaft of which is connected to an adapter. An abutment is provided on the adapter. The abutment is used to reciprocate along a predetermined path under the drive of the drive motor to push the material to a designated position. The predetermined path has a starting point corresponding to the initial position of the abutment and an ending point corresponding to the designated position of the material.

2. The material positioning device according to claim 1, characterized in that, An elastic buffer assembly is provided between the adapter and the abutment to buffer the inertial resistance of the material when the abutment pushes the material.

3. The material positioning device according to claim 2, characterized in that, A guide structure is provided between the adapter and the abutment to guide the abutment to move relative to the adapter.

4. The material positioning device according to claim 3, characterized in that, The abutment is provided with a groove, and a limiting member is provided between the groove and the adapter to limit the movable range of the abutment relative to the adapter.

5. The material positioning device according to claim 3, characterized in that, The adapter includes a pushing part and a resetting part arranged opposite to each other, and the output shaft of the drive motor is connected between the pushing part and the resetting part.

6. The material positioning device according to claim 5, characterized in that, The guiding structure is a guide post disposed between the pushing part and the abutting part, and the elastic buffer assembly is a compression spring, which is sleeved on the outside of the guide post.

7. The material positioning device according to claim 5, characterized in that, It also includes a photoelectric detection device, which includes a transmitter and a receiver arranged opposite to each other, and the reset part is located between the transmitter and the receiver when the abutment is in the initial position.

8. The material positioning device according to any one of claims 1-7, characterized in that, The drive motor is a stepper motor, and the output shaft of the drive motor is connected to the adapter via a coupling.

9. A material conveying device, characterized in that, Includes: a conveyor belt, wherein material positioning devices as described in any one of claims 1 to 8 are respectively provided on opposite sides of the conveyor belt.

10. The material conveying device according to claim 9, characterized in that, It also includes a starting point photoelectric detection device and an ending point photoelectric detection device for detecting the position of materials.

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