Blank transfer mechanism

Abstract

The utility model discloses a material blank transfer mechanism which comprises a bottom frame, a material receiving platform fixedly connected to the rear portion of the bottom frame and a movable platform slidably connected to the bottom frame in the front-back direction, the material receiving platform is higher than the upper surface of the movable platform, and the upper portion of the bottom frame is provided with a pair of linear sliding rails extending in the front-back direction and a longitudinal rod parallel to the linear sliding rails. A rack installation plate and a rack are fixedly installed on the longitudinal rod, a movable frame is connected to the pair of linear sliding rails in a sliding fit mode, the movable platform is fixedly installed on the movable frame, a gear and a motor in transmission connection with the gear are rotatably installed on the movable frame, and the gear is in meshing transmission with the rack.

Description

Technical Field

[0001] This application relates to the field of plastic molding technology, and in particular to a preform transfer mechanism. Background Technology

[0002] In the process of manufacturing pallets using extrusion die casting, the blank needs to be weighed and cut after being extruded from the extruder, and then transferred to the die casting press. Because the blank is at a high temperature, has a large mass, and is prone to deformation during transfer, manual transfer is difficult and costly, which is detrimental to the continuity and efficiency of extrusion die casting. Therefore, there is an urgent need for a die casting pallet blank transfer mechanism to solve these problems. Summary of the Invention

[0003] To address the aforementioned shortcomings, the purpose of this utility model is to provide a blank transfer mechanism for producing die-casting pallets.

[0004] To achieve the above objectives, this application adopts the following technical solution:

[0005] This application provides a material transfer mechanism, comprising: a base frame, a receiving platform fixedly connected to the rear of the base frame, and a movable platform slidably connected to the base frame in a front-rear direction. The receiving platform is higher than the upper surface of the movable platform. The upper part of the base frame has a pair of linear slide rails extending in a front-rear direction and a longitudinal rod parallel to the linear slide rails. A rack mounting plate and a rack are fixedly installed on the longitudinal rod. A movable frame is slidably connected to the pair of linear slide rails. The movable platform is fixedly installed on the movable frame, and a gear and a motor connected to the gear are rotatably mounted on the movable frame. The gear meshes with the rack for transmission.

[0006] In one possible implementation, a weighing pallet is fixedly installed at the rear of the base frame, and the receiving platform is installed on the weighing pallet.

[0007] In one possible implementation, the weighing pallet has a pallet and a pallet seat, a weighing sensor is disposed between the pallet and the pallet seat, and the receiving platform is mounted on the pallet.

[0008] In one possible implementation, the receiving platform has a first circulating conveyor belt capable of horizontally conveying the blanks and a first servo motor for driving the first circulating conveyor belt to rotate.

[0009] In one possible implementation, the mobile platform has a second circulating conveyor belt capable of horizontally conveying the blanks and a second servo motor for driving the second circulating conveyor belt to rotate.

[0010] In one possible implementation, both the first and second circulating conveyor belts are made of polytetrafluoroethylene (PTFE).

[0011] In one possible implementation, a speed reducer is also installed on the output side of the motor, the speed reducer having a speed reducer output shaft, the speed reducer output shaft being connected to the gear transmission via a spline.

[0012] In one possible implementation, guardrails are installed on both the left and right sides of the base frame, and the height of the guardrails is higher than the height of the mobile platform.

[0013] In one possible implementation, the guardrail includes a support portion extending in a horizontal direction and a rail portion extending in a vertical direction, wherein a cable tray groove is installed on the support portion.

[0014] In one possible implementation, the base frame further includes a crossbar connecting a pair of linear slide rails, with the front ends of the pair of linear slide rails respectively located on the front side of the crossbar. The moving platform has a loading position near the rear of the base frame and a unloading position near the front of the base frame. When the moving platform is located in the unloading position, the front end of the moving platform is located on the front side of the crossbar, and there is no obstruction below the front end of the moving platform.

[0015] The advantages of this utility model are: the structure is low-cost, compact and simple, the transmission is stable and reliable, and it is easy to carry out subsequent inspection and maintenance. Attached Figure Description

[0016] Figure 1 This is a front view of the die-casting pallet blank transfer mechanism provided in an embodiment of this application.

[0017] Figure 2 This is a side view of the die-casting pallet blank transfer mechanism provided in an embodiment of this application.

[0018] Figure 3 A perspective view of the die-casting pallet blank transfer mechanism provided in the embodiments of this application.

[0019] Figure 4 for Figure 2 A magnified view of a portion of point A in the middle.

[0020] The components include: 1. Base frame; 2. Linear slide rail; 3. Guardrail; 4. Receiving platform; 5. Moving platform; 6. Weighing pallet; 7. Weighing sensor; 8. First circulating conveyor belt; 9. First servo motor; 10. Second circulating conveyor belt; 11. Moving frame; 12. Rack; 13. Heavy-duty rubber-bottomed steel feet; 14. Cable trough; 15. Rack mounting plate; 16. Reducer; 17. Reducer output shaft; 18. Gear; 19. Crossbar; 20. Vertical bar; 21. Second servo motor; 22. Electric motor. Detailed Implementation

[0021] To illustrate the technical content, structural features, achieved objectives, and effects of this application in detail, the technical solutions in the embodiments of this application will be described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. In the following description, for illustrative purposes, numerous specific details are set forth to provide a detailed description of various exemplary embodiments or implementations of this application. However, various exemplary embodiments may also be implemented without these specific details or in one or more equivalent arrangements. Furthermore, the various exemplary embodiments may differ, but are not necessarily exclusive. For example, the specific shape, structure, and characteristics of an exemplary embodiment may be used or implemented in another exemplary embodiment without departing from the inventive concept.

[0022] In the following description, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0023] Furthermore, in this application, spatial relative terms such as "below," "under," "below," "down," "above," "above," "higher," and "side" (e.g., in "sidewall") are used to describe the relationship between one element and another element as shown in the accompanying drawings. The spatial relative terms are intended to include different orientations of the device in use, operation, and / or manufacture other than those depicted in the drawings. This application is appended with... Figure 1 The left side of the image is the "front" side as described in the instruction manual.

[0024] In this application, unless otherwise expressly specified and limited, the term "connection" shall be interpreted broadly. For example, "connection" may be a fixed connection, a detachable connection, or an integral part; it may be a direct connection or an indirect connection through an intermediate medium.

[0025] See Figure 1 , 3 As shown, an embodiment of this application discloses a blank transfer mechanism for a die-casting pallet, which includes a base frame 1. The upper part of the base frame 1 has a pair of linear slide rails 2 extending in the front-rear direction. The pair of linear slide rails 2 are connected by a crossbar 19. The base frame 1 also has a longitudinal bar 20 parallel to the linear slide rails 2.

[0026] A weighing tray 6 is fixedly installed at a higher position at the rear of the base frame 1. The weighing tray 6 has a tray and a tray seat. Multiple weighing sensors 7 are installed between the tray and the tray seat. A receiving platform 4 is fixedly installed above the tray. When the blank falls onto the receiving platform 4, the weighing sensors will detect the weight of the blank on the receiving platform in real time and feed the weight information back to the PLC. When the weight of the blank reaches the set threshold, the upstream cutting blade is controlled to cut the continuous blank.

[0027] The receiving platform 4 includes a pair of rotating rollers, a first servo motor 9 connected to one of the rotating rollers, and a first circulating conveyor belt 8 tensioned on the pair of rotating rollers. The first circulating conveyor belt 8 rotates in a cycle under the drive of the pair of rotating rollers and moves the material blank forward until the material blank is transferred to the moving platform 5.

[0028] The weighing tray 6 is located above the base frame 1 and is higher than the height of the moving platform 5. When the material blank falls onto the receiving platform, the weighing sensor detects the mass of the material blank above in real time. At the same time, the first circulating conveyor belt 8 rotates slowly to ensure that the material blank can be evenly spread on the first circulating conveyor belt 8. After the material blank reaches the set threshold, it is sent to the moving platform 5 below.

[0029] A movable frame 11 is slidably mounted on a pair of linear guide rails 2. The movable frame 11 can move back and forth on the base frame 1 via the linear guide rails 2, and the front and rear ends of the linear guide rails 2 are respectively equipped with obstructions to prevent the movable frame from derailing and detaching from the base frame. A movable platform 5 is mounted on the movable frame 11, and the movable platform 5 also includes a pair of rotating rollers, a second circulating conveyor belt 10 tensioned on the pair of rotating rollers, and a second servo motor 21 that drives the rotating rollers to rotate.

[0030] Please see Figure 2 , 3 4. A rack mounting plate 15 extending in the front-rear direction is provided on the upper part of the longitudinal rod 20, and a rack 15 is fixedly mounted on the rack mounting plate 15. The length of the rack mounting plate 15 is approximately the same as the length of the base frame 1, so that the movable frame 11 can move fully to both ends on the base frame 1. The rack mounting plate 15 and the rack 12 are locked together by bolts. The rack 12 is horizontal with the rack mounting plate 15, and the length of the rack 12 is approximately the same as the length of the rack mounting plate 15.

[0031] A motor 22 is mounted on the movable frame 11. The output end of the motor 22 is connected to a reducer 16. A reducer output shaft 17 is coaxially mounted inside the reducer 16, and the reducer output shaft 17 can rotate smoothly on the movable frame 11. The reducer output shaft 17 is connected to a gear 18 via a key. The reducer output shaft 17 and the gear 18 rotate synchronously, and the reducer output shaft 17 drives the gear 18 to rotate. The gear 18 meshes with the rack 12, realizing the conversion of gear rotation into linear movement of the movable frame on the rack. The motor 22 can rotate in both directions to drive the movable frame 11 to move forward or backward.

[0032] To ensure that the mobile platform 5 has a large range of movement and accurately delivers the blank into the designated die-casting equipment, the front ends of a pair of linear guide rails 2 protrude from the front side of the crossbar 19. That is to say, the mobile platform 5 has a loading position near the rear of the base frame 1 and a unloading position near the front of the base frame 1. When the mobile platform 5 is in the unloading position, the front end of the mobile platform 5 is located in front of the crossbar 19, and there is no obstruction below the front end of the mobile platform 5 to facilitate unloading.

[0033] The movable frame 11 and the movable platform 5 are fastened together by bolts. First, it moves to the loading position at the rear of the base frame 1. Since the height of the movable platform 5 is lower than the height of the receiving platform 4, the blank falls onto the movable platform 5 through the receiving platform 4 under the action of gravity. The movable frame 11 starts to drive under the transmission of the motor 22, gear 18, and rack 12, and transfers the movable platform 5 and the blank from the rear end to the front end of the base frame 1. After the movable frame 11 reaches the unloading position at the front end of the base frame 1, the second circulating conveyor belt 10 starts to rotate and sends the blank to the next processing step.

[0034] The left and right sides of the base frame 1 and the guardrail 3 are fastened together with bolts. The guardrail 3 can maintain the normal operation of the transfer mechanism, ensure the safety of the staff, and prevent the material blanks from falling. Figure 2 As shown, the guardrail 3 includes a support portion extending horizontally and a railing portion extending vertically, wherein a cable carrier groove 14 is installed on the support portion. The cable carrier groove 14 is fixed to the guardrail 3 by bolts. The cable carrier groove 14 can move with the moving frame 11, enhancing the flexibility of the equipment, while also protecting the wires, preventing the wires from being exposed, and improving the safety of the equipment.

[0035] Heavy-duty rubber-bottomed steel feet 13 are fixedly installed at the lower end of the base frame 1, which ensures the stability and reliability of the transfer mechanism and can adjust the transfer mechanism to maintain a horizontal position, preventing the material blank from tilting or falling during the transfer process due to uneven ground, thus ensuring the stability and reliability of the transfer process.

[0036] In the overall process of this utility model, the blank first falls onto the receiving platform 4, the first circulating conveyor belt 8 rotates at a constant speed, at which time the weighing sensor 7 starts to detect the mass of the blank in real time. The blank is evenly spread above the first circulating conveyor belt 8. After reaching the predetermined threshold, the blank is sent to the moving platform 5 below. The second circulating conveyor belt 10 also rotates at a constant speed, and the blank is evenly spread. Then the moving frame 11 starts to transfer to the front end of the base frame. After the moving frame 11 reaches the unloading position at the front end of the base frame 1, the second circulating conveyor belt 8 starts to rotate, and continues to send the blank to the next processing step.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this application. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this application. Various changes and modifications can be made to this application without departing from the inventive spirit and scope. The scope of protection claimed by this application is defined by the appended claims, specification, and their equivalents.

Claims

1. A material transfer mechanism, characterized in that, include: The system comprises a base frame, a receiving platform fixedly connected to the rear of the base frame, and a movable platform slidably connected to the base frame in the front-to-back direction. The receiving platform is higher than the upper surface of the movable platform. The upper part of the base frame has a pair of linear slide rails extending in the front-to-back direction and a longitudinal rod parallel to the linear slide rails. A rack mounting plate and a rack are fixedly installed on the longitudinal rod. A movable frame is slidably connected to the pair of linear slide rails. The movable platform is fixedly installed on the movable frame, and a gear and a motor connected to the gear transmission are rotatably installed on the movable frame. The gear meshes with the rack for transmission.

2. The material transfer mechanism according to claim 1, characterized in that, A weighing pallet is fixedly installed at the rear of the base frame, and the receiving platform is installed on the weighing pallet.

3. The material transfer mechanism according to claim 2, characterized in that, The weighing pallet has a pallet and a pallet seat, a weighing sensor is installed between the pallet and the pallet seat, and the receiving platform is installed on the pallet.

4. The material transfer mechanism according to claim 1, characterized in that, The receiving platform has a first circulating conveyor belt for horizontally conveying material blanks and a first servo motor for driving the first circulating conveyor belt to rotate.

5. The material transfer mechanism according to claim 4, characterized in that, The mobile platform has a second circulating conveyor belt for horizontally conveying material blanks and a second servo motor for driving the second circulating conveyor belt to rotate.

6. The material transfer mechanism according to claim 5, characterized in that, Both the first and second circulating conveyor belts are made of polytetrafluoroethylene (PTFE).

7. The material transfer mechanism according to claim 1, characterized in that, The output side of the electric motor is also equipped with a reducer, which has a reducer output shaft and is connected to the gear transmission via a spline.

8. The material transfer mechanism according to claim 1, characterized in that, The base frame is also equipped with guardrails on both the left and right sides, and the height of the guardrails is higher than the height of the mobile platform.

9. A material transfer mechanism according to claim 8, characterized in that, The guardrail includes a support portion extending in a horizontal direction and a railing portion extending in a vertical direction, wherein a cable tray groove is installed on the support portion.

10. A material transfer mechanism according to claim 1, characterized in that, The base frame also includes a crossbar connecting a pair of linear slide rails, and the front ends of the pair of linear slide rails are respectively located on the front side of the crossbar. The moving platform has a loading position near the rear of the base frame and a unloading position near the front of the base frame. When the moving platform is located in the unloading position, the front end of the moving platform is located on the front side of the crossbar, and there is no obstruction below the front end of the moving platform.

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