A material changing mechanism for use in a central feeding system

Abstract

This utility model discloses a material changing mechanism for a central feeding system, belonging to the field of material conveying technology. It aims to solve the problems of difficult movement and positioning, poor height adaptability, and low pipeline connection efficiency of traditional equipment. The mechanism achieves flexible movement and stable positioning through universal wheels with locking function; a servo motor drives a synchronous belt and threaded shaft to precisely raise and lower a sliding block along a sliding groove with an inverted trapezoidal cross-section. Combined with scale indicators and guide pillars, it accurately matches feeding interfaces of different heights. The core connecting unit drives the opening and closing of symmetrical sliding plates through a rotating handle, controlling the hinged clamps to quickly clamp the input / output pipes. The guide protrusions on the pipe connecting plate are used for insertion and positioning with the slots. Finally, the threaded ring on the outer wall of the pipe is locked by a rotating connector, forming a double seal. This invention significantly improves material changing efficiency and connection reliability, and is suitable for high-frequency material switching scenarios in automated production lines.

Description

Technical Field

[0001] This utility model belongs to the field of material conveying technology, specifically relating to a material changing mechanism applied to a central material supply system. Background Technology

[0002] In the operation of a central feeding system, frequent replacement of raw material pipelines is a key aspect of ensuring multi-variety production.

[0003] However, traditional material changing mechanisms have significant limitations: First, the equipment often uses a fixed base or simple roller design, making it difficult to move flexibly and position stably in the workshop, and prone to misalignment due to vibration; second, the large differences in pipe interface height make manual adjustment of the lifting mechanism inefficient and inaccurate, often leading to misalignment or sealing failure, resulting in raw material leakage and mixing risks; third, pipe connections rely on flange bolts or ordinary clamps for fastening, which is cumbersome and time-consuming, and prone to loosening and leakage under high-pressure conditions, resulting in high maintenance costs. These defects severely restrict the automation efficiency and production safety of the material feeding system.

[0004] Therefore, it is necessary to develop a new material changing mechanism that integrates mobile locking, precision lifting and fast and reliable connection functions to solve the three core pain points of unstable equipment positioning, poor height adaptability and low pipeline disassembly and assembly efficiency, thereby improving the overall operating efficiency and reliability of the central material supply system. Utility Model Content

[0005] The purpose of this invention is to provide a material changing mechanism for use in a central material feeding system, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a material changing mechanism for a central feeding system, comprising a base plate, universal wheels with locking structures installed at the four corners of the lower end of the base plate, a support plate fixedly connected to one side of the upper end of the base plate, a top plate fixedly connected to the upper end of the support plate, a fixed plate fixedly connected to one side of the top plate by symmetrical fixing bolts, a sliding groove provided in the middle of the base plate, a servo motor fixedly connected to the middle of one side of the upper end of the top plate, the output shaft of the servo motor being meshed with one end of a synchronous belt, one end of the synchronous belt being meshed with one end of a threaded shaft, the other end of the threaded shaft being slidably connected to one side of the top plate and passing through the sliding groove, a sliding block being threadedly connected to the outer surface of the threaded shaft, the outer surface of the sliding block being fixedly fitted and slidably connected to the sliding groove, a connecting plate being fixedly connected to the lower end of the sliding block, the connecting plate being inverted U-shaped, and a fixed shaft being slidably connected to the middle of both sides of the connecting plate, a connecting unit being threadedly connected to the outer surface of the fixed shaft.

[0007] It should be noted in the solution that the front end of the top plate is equipped with a scale.

[0008] It is worth noting that a first guide post is fixedly connected to the upper end of one side of the support plate, and the first guide post is slidably connected to both sides of the upper end of the connecting plate.

[0009] Furthermore, it should be noted that the cross-sections of the sliding groove and the sliding block are both inverted trapezoidal, and the outer surfaces of the output shaft and the threaded shaft of the servo motor are fixedly connected to limit plates at both ends of the synchronous belt.

[0010] In a preferred embodiment, a second guide post is fixedly connected to both sides of the opposite surfaces of the two side plates of the sliding block.

[0011] In a preferred embodiment, the fixed shaft is fixedly connected to a limit ring on one side of the sliding block side plate, and a handle is fixedly connected to the front end of the fixed shaft.

[0012] In a preferred embodiment, the connecting unit includes a symmetrical sliding plate. The symmetrical sliding plate has threaded holes and connecting holes at its center and both sides, respectively. The threaded holes and connecting holes are threaded to a fixed shaft or slidably connected to a second guide post. A semi-circular groove is provided at the center of the lower end of the symmetrical sliding plate, and trapezoidal connecting grooves are provided on both sides of the groove. Pin holes are provided on both sides of the connecting grooves, and clamps are connected to them via pins. Washers are fixedly connected to the center of the upper end of each clamp, and both ends of the clamps can slide together. An input pipe or an output pipe is slidably connected between the groove and the clamps. Connecting discs are provided on opposite sides of the input and output pipes, and the edges of the connecting discs have protruding guides. Symmetrical semi-circular threaded rings are provided on the outer surface of one side of the input and output pipes, and the outer surface of each threaded ring has external threads and is threaded to the inner surface of the connecting component.

[0013] In a preferred embodiment, the input pipe and the output pipe are respectively provided with symmetrical fixing rings or symmetrical slots on opposite sides of the connecting plate, and the fixing rings and slots can be fitted and slidably connected.

[0014] Compared with the prior art, the material changing mechanism for a central feeding system provided by this utility model has at least the following beneficial effects:

[0015] (1) The unique pipe connection unit design is a core advantage. This unit utilizes an openable clamp structure with a connecting disc featuring guiding and positioning characteristics (raised guide, groove / fixing ring) to quickly and accurately align and clamp the input and output pipes. The threaded pipe interface can be locked by rotating the connector, forming a strong seal. This design eliminates the cumbersome bolt alignment and tightening steps of traditional flange connections, significantly shortening the pipe disassembly and assembly time during material changeover, improving operational efficiency, and ensuring the reliability and sealing of the connection process.

[0016] (2) The universal wheels with locking function at the bottom of the mechanism allow the entire device to be easily moved to different workstations and locked securely when needed, significantly improving the deployment flexibility of the equipment in complex workshop environments. At the same time, the servo motor drives the sliding block to move precisely within a specific groove via a synchronous belt and threaded shaft. Combined with the scale indication on the top, this enables precise and controllable adjustment of the height position of the bearing pipe connection unit, greatly facilitating docking with material supply interfaces of different heights and simplifying the operation process. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the front structure of this utility model. Figure 1 ;

[0018] Figure 2 This is a schematic diagram of the front structure of this utility model. Figure 2 ;

[0019] Figure 3 This is a schematic diagram of the connection unit structure of this utility model. Figure 1 ;

[0020] Figure 4 This is a schematic diagram of the connection unit structure of this utility model. Figure 2 .

[0021] In the diagram: 1. Base plate; 101. Caster wheel; 2. Support plate; 3. Top plate; 301. Sliding groove; 302. Scale; 303. First guide post; 304. Fixing bolt; 4. Fixing plate; 5. Servo motor; 6. Output shaft; 7. Synchronous belt; 8. Limiting plate; 9. Threaded shaft; 10. Sliding block; 11. Connecting plate; 12. Fixing shaft; 1201. Limiting ring; 1202. Handle; 13. Second guide post; 14. Connecting... Unit; 1401, sliding plate; 1402, threaded hole; 1403, connecting hole; 1404, input pipe; 1405, output pipe; 1406, connector; 1407, threaded ring; 1408, connecting plate; 1409, raised guide; 1410, slot; 1411, clamp; 1412, washer; 1413, pin hole; 1414, pin shaft; 1415, fixing ring; 1416, connecting groove. Detailed Implementation

[0022] The present invention will be further described below with reference to the embodiments.

[0023] Please see Figure 1-4This utility model provides a material changing mechanism for a central feeding system, comprising: a base plate 1, with universal wheels 101 with locking structures installed at the four corners of the lower end of the base plate 1; a support plate 2 fixedly connected to one side of the upper end of the base plate 1; a top plate 3 fixedly connected to the upper end of the support plate 2; a fixing plate 4 fixedly connected to one side of the top plate 3 by symmetrical fixing bolts 304; a sliding groove 301 provided in the middle of the base plate 1; and a servo motor 5 fixedly connected to the middle of one side of the upper end of the top plate 3. The output shaft 6 of the servo motor 5 is connected to the base plate 1 by meshing with the top plate 3. One end of the synchronous belt 7 is engaged with one end of the threaded shaft 9. The other end of the threaded shaft 9 is slidably connected to one side of the top plate 3 and passes through the sliding groove 301. A sliding block 10 is threadedly connected to the outer surface of the threaded shaft 9. The outer surface of the sliding block 10 is fixedly fitted and slidably connected to the sliding groove 301. A connecting plate 11 is fixedly connected to the lower end of the sliding block 10. The connecting plate 11 is in the shape of an inverted U. A fixed shaft 12 is slidably connected to the middle of both sides of the connecting plate 11. A connecting unit 14 is threadedly connected to the outer surface of the fixed shaft 12.

[0024] Further as Figure 1 and Figure 2 As shown, it is worth noting that the top plate 3 has a scale 302 at its front end. The scale 302 provides an intuitive height positioning reference, enabling operators to accurately control the lifting position of the connecting unit 14, which facilitates quick alignment of the feeding interfaces at different heights, reduces debugging time, and improves material changing efficiency.

[0025] Further as Figure 1 and Figure 2 As shown, it is worth noting that a first guide post 303 is fixedly connected to the upper end of one side of the support plate 2. The first guide post 303 is slidably connected to both sides of the upper end of the connecting plate 11. The first guide post 303 forms a vertical guide for the lifting and lowering movement of the connecting plate 11, preventing swaying or jamming caused by the single-point drive of the threaded shaft 9, ensuring that the lifting and lowering process of the connecting unit 14 is stable and reliable, and extending the service life of the mechanism.

[0026] Further as Figure 1 and Figure 2 As shown, it is worth noting that the cross-sections of both the sliding groove 301 and the sliding block 10 are inverted trapezoidal, and the outer surfaces of the output shaft 6 and the threaded shaft 9 of the servo motor 5 are fixedly connected to the limiting plates 8 at both ends of the synchronous belt 7. The inverted trapezoidal cross-section design enables the sliding block 10 to form a mechanical interlock with the sliding groove 301, preventing the sliding block 10 from dislodging under load and enhancing the structural rigidity. The limiting plates 8 restrict the axial displacement of the synchronous belt 7, avoiding tooth slippage or skipping in the transmission, and ensuring that the power of the servo motor 5 is stably transmitted to the threaded shaft 9.

[0027] This solution includes the following work process:

[0028] 1. Movement and positioning: The entire mechanism is moved to the required work position and locked in place by means of the casters 101 with locking structure at the lower end of the base plate 1.

[0029] 2. Height Adjustment: The servo motor 5 is activated, and its output shaft 6 drives the threaded shaft 9 to rotate via the synchronous belt 7. The threaded shaft 9 is threadedly connected to the sliding block 10, and the shape of the sliding block 10 matches the sliding groove 301 (the cross-section is an inverted trapezoid to prevent it from dislodging). Therefore, the rotation of the threaded shaft 9 is converted into precise linear motion of the sliding block 10 within the sliding groove 301. The sliding block 10 drives the inverted U-shaped connecting plate 11 fixed to it and the entire connecting unit 14 to rise and fall. The first guide post 303 passes through the connecting plate 11, ensuring a smooth and vertical lifting process. The scale 302 at the front end of the top plate 3 assists in precisely controlling the lifting height, allowing the connecting unit 14 to connect with feed ports of different heights.

[0030] 3. Pipe connection and replacement:

[0031] The operator rotates the handle 1202 at the front end of the fixed shaft 12, causing the fixed shaft 12 to move on both sides of the connecting plate 11. The fixed shaft 12 is threadedly connected to the threaded hole 1402 in the middle of the sliding plate 1401 of the connecting unit 14, thereby driving the two sliding plates 1401 to slide in opposite directions along the second guide post 13.

[0032] When the sliding plate 1401 is separated, the input pipe 1404 and the output pipe 1405 are respectively placed into the semi-circular groove at their lower ends, and the protruding guide 1409 on the two pipe connecting plate 1408 is aligned with the slot 1410 (or the fixing ring 1415).

[0033] Rotating handle 1202 causes sliding plate 1401 to close, causing clamp 1411 (connected via pin 1414) to rotate and tighten the pipe. Washer 1412 enhances the seal. At this point, the threaded rings 1407 of the two pipes are aligned.

[0034] Finally, screw the connector 1406 onto the threaded rings 1407 of the two pipes. Through the engagement of the external and internal threads, the input pipe 1404 and the output pipe 1405 are quickly and securely connected and sealed, completing the switching of the material change interface.

[0035] Based on the above work process, it can be concluded that:

[0036] The scale 302 provides an intuitive height positioning reference, enabling operators to accurately control the lifting position of the connecting unit 14, facilitating quick alignment of feeding interfaces at different heights, reducing debugging time, and improving material change efficiency. The first guide post 303 provides vertical guidance for the lifting movement of the connecting plate 11, preventing swaying or jamming caused by single-point drive of the threaded shaft 9, ensuring a smooth and reliable lifting process for the connecting unit 14, and extending the service life of the mechanism. The inverted trapezoidal cross-section design creates a mechanical interlock between the sliding block 10 and the sliding groove 301, preventing the sliding block 10 from disengaging under load and enhancing structural rigidity; the limiting plate 8 restricts the axial displacement of the synchronous belt 7, preventing transmission tooth slippage or skipping, and ensuring stable power transmission from the servo motor 5 to the threaded shaft 9.

[0037] Further as Figure 1 and Figure 2 As shown, it is worth noting that the two sides of the sliding block 10 are fixedly connected with the second guide post 13 on both sides of the opposite side of the two plates. The second guide post 13 provides parallel guidance for the symmetrical sliding plate 1401 of the connecting unit 14, ensuring that the two sliding plates 1401 move strictly synchronously during the opening and closing process, avoiding deviation when the pipe is clamped, and ensuring the sealing performance.

[0038] Further as Figure 1 and Figure 2 As shown, it is worth noting that the fixed shaft 12 is fixedly connected to a limit ring 1201 on one side of the sliding block 10 side plate, and a handle 1202 is fixedly connected to the front end of the fixed shaft 12. The axial displacement range of the fixed shaft 12 is limited by the limit ring 1201 to prevent excessive screwing and damage to the mechanism. The handle 1202 provides a manual operation fulcrum, which allows the fixed shaft 12 to be quickly screwed without tools, thereby clamping / releasing the connecting unit 14 and improving the ease of operation.

[0039] Further as Figure 3 and Figure 4As shown, it is worth noting that the connecting unit 14 includes a symmetrical sliding plate 1401. The symmetrical sliding plate 1401 has threaded holes 1402 and connecting holes 1403 on its center and both sides, respectively. The threaded holes 1402 and connecting holes 1403 are threaded to the fixed shaft 12 or slidably connected to the second guide post 13. A semi-circular groove is provided at the center of the lower end of the symmetrical sliding plate 1401, and trapezoidal connecting grooves 1416 are provided on both sides of the groove. Pin holes 1413 are provided on both sides of the connecting grooves 1416, and clamps 1411 are connected to both grooves via pins 1414. Washers 1412 are fixedly connected to the middle of the upper end, and both ends of the clamp 1411 can be slidably connected. An input pipe 1404 or an output pipe 1405 is slidably connected between the groove and the clamp 1411 respectively. A connecting plate 1408 is provided on the opposite side of the input pipe 1404 and the output pipe 1405. A protruding guide 1409 is provided on the edge of the connecting plate 1408. A symmetrical semi-circular threaded ring 1407 is provided on the outer surface of the input pipe 1404 and the output pipe 1405 on one side of the connecting plate 1408. The outer surface of the threaded ring 1407 is provided with external threads and is threaded to the inner surface of the connector 1406.

[0040] Further as Figure 3 and Figure 4 As shown, it is worth noting that the connecting plate 1408 of the input pipe 1404 and the output pipe 1405 is provided with symmetrical fixing rings 1415 or symmetrical slots 1410 on opposite sides, and the fixing rings 1415 and the slots 1410 can be fitted and slidably connected.

[0041] Quick assembly and disassembly:

[0042] The clamp 1411 is hinged by the pin 1414, which has a large degree of freedom in opening and closing. Combined with the handle 1202, it drives the fixed shaft 12 to control the movement of the sliding plate 1401, so as to realize the quick clamping or release of the input / output pipes 1404 / 1405.

[0043] The protruding guide 1409 of the connecting plate 1408 and the slot 1410 (or fixing ring 1415) form an insertion positioning, eliminating the need for manual alignment.

[0044] Reliable sealing:

[0045] Gasket 1412 enhances the seal between the pipe and clamp 1411;

[0046] By rotating the connector 1406 to lock the threaded rings 1407 of the two pipes, a rigid connection is formed, eliminating the risk of leakage.

[0047] Modular adaptation: The symmetrical sliding plate 1401 can be adapted to different pipe diameters, and the trapezoidal connecting groove 1416 design of the clamp 1411 enhances clamping stability and is suitable for various working conditions.

[0048] In summary:

[0049] The second guide post 13 provides parallel guidance for the symmetrical sliding plates 1401 of the connecting unit 14, ensuring that the two sliding plates 1401 move strictly synchronously during opening and closing, avoiding skewing when clamping the pipe and ensuring sealing. The limit ring 1201 restricts the axial displacement range of the fixed shaft 12 to prevent excessive screwing and damage to the mechanism; the handle 1202 provides a manual operation fulcrum, allowing for quick screwing of the fixed shaft 12 without tools, realizing the clamping / release of the connecting unit 14, and improving the ease of operation.

[0050] Quick assembly and disassembly:

[0051] The clamp 1411 is hinged by the pin 1414, which has a large degree of freedom in opening and closing. Combined with the handle 1202, it drives the fixed shaft 12 to control the movement of the sliding plate 1401, so as to realize the quick clamping or release of the input / output pipes 1404 / 1405.

[0052] The protruding guide 1409 of the connecting plate 1408 and the slot 1410 (or fixing ring 1415) form an insertion positioning, eliminating the need for manual alignment.

[0053] Reliable sealing:

[0054] Gasket 1412 enhances the seal between the pipe and clamp 1411;

[0055] By rotating the connector 1406 to lock the threaded rings 1407 of the two pipes, a rigid connection is formed, eliminating the risk of leakage.

[0056] Modular adaptation: The symmetrical sliding plate 1401 can be adapted to different pipe diameters, and the trapezoidal connecting groove 1416 design of the clamp 1411 enhances clamping stability and is suitable for various working conditions.

[0057] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A material changing mechanism for a central feeding system, comprising a base plate (1), characterized in that: The base plate (1) is equipped with casters (101) with locking structures at the four corners of its lower end. A support plate (2) is fixedly connected to one side of the upper end of the base plate (1). A top plate (3) is fixedly connected to the upper end of the support plate (2). A fixing plate (4) is fixedly connected to one side of the top plate (3) by symmetrical fixing bolts (304). A sliding groove (301) is provided in the middle of the base plate (1). A servo motor (5) is fixedly connected to the middle of one side of the upper end of the top plate (3). The output shaft (6) of the servo motor (5) is meshed with one end of a synchronous belt (7). The threaded shaft (9) is engaged with one end of the threaded shaft (9), and the other end of the threaded shaft (9) is slidably connected to one side of the top plate (3) and passes through the sliding groove (301). The outer surface of the threaded shaft (9) is threaded with a sliding block (10). The outer surface of the sliding block (10) is fixedly fitted and slidably connected to the sliding groove (301). The lower end of the sliding block (10) is fixedly connected with a connecting plate (11). The connecting plate (11) is inverted U-shaped. The middle of both sides of the connecting plate (11) is slidably connected with a fixed shaft (12). The outer surface of the fixed shaft (12) is threaded with a connecting unit (14).

2. The material changing mechanism applied to a central feeding system according to claim 1, characterized in that: The top plate (3) has a scale (302) at its front end.

3. The material changing mechanism applied to a central feeding system according to claim 1, characterized in that: The support plate (2) is fixedly connected to the upper end of one side with a first guide post (303), and the first guide post (303) is slidably connected to both sides of the upper end of the connecting plate (11).

4. The material changing mechanism applied to a central feeding system according to claim 1, characterized in that: The cross-sections of the sliding groove (301) and the sliding block (10) are both inverted trapezoidal, and the outer surfaces of the output shaft (6) and the threaded shaft (9) of the servo motor (5) are fixedly connected to the limit plates (8) at both ends of the synchronous belt (7).

5. A material changing mechanism for a central feeding system according to claim 1, characterized in that: The sliding block (10) has a second guide post (13) fixedly connected to both sides of the opposite side of the two side plates.

6. A material changing mechanism for a central feeding system according to claim 1, characterized in that: The fixed shaft (12) is fixedly connected to a limit ring (1201) on one side of the sliding block (10) side plate, and a handle (1202) is fixedly connected to the front end of the fixed shaft (12).

7. A material changing mechanism for a central feeding system according to claim 1, characterized in that: The connecting unit (14) includes a symmetrical sliding plate (1401). The symmetrical sliding plate (1401) has threaded holes (1402) and connecting holes (1403) in the middle and on both sides, respectively. The threaded holes (1402) and connecting holes (1403) are threaded to the fixed shaft (12) or slidably connected to the second guide post (13), respectively. The symmetrical sliding plate (1401) has a semi-circular groove in the middle of its lower end, and the symmetrical sliding plate (1401) has trapezoidal connecting grooves (1416) on both sides of the groove. The connecting grooves (1416) have pin holes (1413) on both sides, and each is connected to a clamp (1411) through a pin (1414). The clamp (1411) has a pin hole (1413) in the middle of its upper end. Both are fixedly connected with washers (1412), and both ends of the clamp (1411) can be slidably connected. An input pipe (1404) or an output pipe (1405) is slidably connected between the groove and the clamp (1411). A connecting plate (1408) is provided on the opposite side of the input pipe (1404) and the output pipe (1405). The edge of the connecting plate (1408) is provided with a protruding guide (1409). The outer surface of the input pipe (1404) and the output pipe (1405) on one side of the connecting plate (1408) is provided with a symmetrical semi-circular threaded ring (1407). The outer surface of the threaded ring (1407) is provided with an external thread and is threaded to the inner surface of the connector (1406).

8. A material changing mechanism for a central feeding system according to claim 7, characterized in that: The connecting plate (1408) of the input pipe (1404) and the output pipe (1405) are respectively provided with symmetrical fixing rings (1415) or symmetrical slots (1410) on opposite sides, and the fixing rings (1415) and the slots (1410) can be fitted and slidably connected.

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