Hydraulic truck spring free height high speed automatic sorting machine

Abstract

The utility model discloses a hydraulic carrier spring free height high -speed automatic sorting machine, including supporting cylinder, the supporting cylinder is rotationally arranged with the sorting board, the top of sorting board evenly is provided with a plurality of groups of support groove, a plurality of groups of sorting mechanism are provided with a plurality of groups of support groove on the sorting board, the side of supporting cylinder is provided with the feeding mechanism, the top of supporting cylinder is seted up to place the groove, the height detection mechanism for detecting spring free height is fixed in the placing groove and is provided with drive assembly in the supporting cylinder, drive assembly is connected with sorting board transmission, the utility model belongs to sorting machine technical field, and specifically refers to a kind of hydraulic carrier spring free height high -speed automatic sorting machine.

Description

Technical Field

[0001] This utility model belongs to the field of sorting machine technology, specifically referring to a high-speed automatic sorting machine with a hydraulic pallet truck spring free height. Background Technology

[0002] Currently, in the mass production and assembly of springs for hydraulic pallet trucks, rapid and accurate sorting of their free height (i.e., their original length under no-load conditions) is a crucial step in ensuring product quality and assembly consistency. Existing technologies for sorting cylindrical parts such as springs often employ a combination of vibratory feeders and single-station measurement or manual sampling. Specifically, a common approach involves using a vibratory feeder to transport the springs to a fixed inspection station, where they are measured individually using a contact height gauge or a simple laser sensor. A robotic arm or pusher then sorts them into different collection boxes based on the measurement results. However, this method reveals the following significant drawbacks in practical applications: First, it is difficult to balance sorting efficiency and continuity. Traditional single-station measurement modes are limited by the cycle time of robotic arm pick-up / placement or push rod movements, resulting in slow sorting speeds that cannot meet the demands of high-speed continuous operation on production lines. The trajectory movement and gripping / releasing of the robotic arm are time-consuming, and reprogramming and positioning are required when switching between multiple specifications, resulting in poor flexibility. On the other hand, push rod sorting is prone to jamming or malfunctions at high speeds, affecting the stability of the entire line operation.

[0003] Secondly, the detection accuracy is greatly affected by the workpiece's posture and vibration. During the conveying and falling into the measuring station, springs are prone to tilting, tipping over, or having inconsistent postures, causing the measurement reference plane for their free height to fail to accurately align with the sensor, resulting in significant measurement errors. Existing devices, relying solely on simple guide grooves, cannot guarantee the springs' vertical standing position under high-speed dynamic conditions, leading to unstable sorting accuracy and poor batch consistency. Utility Model Content

[0004] To address the problems of low sorting efficiency, measurement accuracy, and operational stability in existing hydraulic pallet truck spring sorting technologies, this invention provides a high-speed automatic sorting machine for hydraulic pallet truck springs with free height.

[0005] To achieve the above functions, the technical solution adopted by this utility model is as follows: a hydraulic pallet truck spring free height high-speed automatic sorting machine includes a support cylinder, a sorting plate is rotatably arranged inside the support cylinder, a number of support grooves are evenly arranged on the top of the sorting plate, and a number of sorting mechanisms are arranged on the sorting plate corresponding to the number of support grooves. A feeding mechanism is provided on the side of the support cylinder; The top of the support cylinder is provided with a placement groove, and a height detection mechanism for detecting the free height of the spring is fixedly installed in the placement groove. The support cylinder is equipped with a drive assembly, which is connected to the sorting plate via a transmission.

[0006] Furthermore, the sorting plate has multiple sets of receiving slots evenly distributed corresponding to the sorting mechanism; The top edge of the sorting plate has a groove.

[0007] Furthermore, the sorting mechanism includes a telescopic cylinder fixed to the bottom of the sorting plate, a hinge seat one mounted on the piston rod of the telescopic cylinder, a sorting cylinder movably disposed on the support groove, a hinge seat two fixed to the side of the sorting cylinder near the telescopic cylinder, a hinge seat three fixed to the other side of the sorting cylinder, a connecting rod two fixed in the groove, and a connecting rod one with both ends hinged to the hinge seat one and the hinge seat two respectively. The end of the second connecting rod is hinged to the third hinge seat; The piston rod of the telescopic cylinder extends upward through the bottom of the sorting plate and is located in the receiving groove.

[0008] Furthermore, the top of the sorting cylinder is a conical cylinder, and the bottom is a cylinder that matches the shape of the support groove.

[0009] Furthermore, the feeding mechanism includes a conveyor belt, a support column for supporting the conveyor belt, and baffles symmetrically fixed on both sides of the conveyor belt. The discharge end of the conveyor belt is located diagonally above the sorting cylinder.

[0010] Furthermore, L-shaped support rods are fixed on both sets of baffles, and arc-shaped limiting plates are fixedly connected to the ends of the L-shaped support rods. The arc surfaces of the two sets of arc-shaped limiting plates are arranged opposite to each other.

[0011] Furthermore, the drive assembly includes a drive motor fixed inside the support cylinder, a drive gear fixedly connected to the output shaft of the drive motor, a rotating shaft rotatably installed inside the support cylinder, and a driven gear fixedly sleeved on the rotating shaft. The driving gear meshes with the driven gear; The sorting plate is circular and is coaxially fixedly installed at the top of the rotating shaft.

[0012] Furthermore, a conductive slip ring is fixedly sleeved on the rotating shaft; The conductive slip ring is located between the sorting plate and the driven gear.

[0013] Furthermore, the height detection mechanism includes a first slide rail vertically fixedly installed in the placement groove at the top of the support cylinder, a first sliding block slidably installed on the first slide rail, a second slide rail horizontally fixed on the first sliding block, a second sliding block slidably installed on the second slide rail, and a laser displacement sensor fixed on the second sliding block. The detection end of the laser displacement sensor is vertically downward, facing the sorting cylinder that has rotated to the detection station.

[0014] Furthermore, multiple sets of sorting and collection bins are evenly arranged in the placement slot along the rotation direction of the sorting plate.

[0015] Compared with the prior art, the present invention achieves the following beneficial effects by adopting the above structure: 1. Achieve continuous high-speed sorting, improving efficiency and reliability. This utility model uses a drive component to drive the circular sorting plate to rotate periodically, so that each sorting cylinder sequentially passes through the feeding, detection, and unloading stations, forming a continuous sorting production line. Simultaneously, the sorting mechanism integrates a multi-link and hinged seat linkage flipping structure driven by a telescopic cylinder. When the sorting cylinder rotates to the unloading station, the telescopic cylinder's action causes the sorting cylinder to flip, precisely pouring the spring into the corresponding collection box through the groove. This design integrates station switching and unloading actions, avoiding the positioning errors and cycle time losses of traditional robotic arms, significantly improving sorting speed while ensuring accurate unloading, thus enhancing the efficiency and reliability of batch sorting.

[0016] 2. Ensuring testing accuracy and adapting to the testing of springs of various specifications. Addressing the issue of springs easily skewing during dynamic sorting, this invention utilizes a two-stage guide system formed by an arc-shaped limiting plate at the conveyor belt exit and a conical structure at the top of the sorting cylinder. This ensures the springs fall vertically and are stably positioned in the support groove, providing a unified benchmark for testing. The height detection mechanism employs a two-dimensional adjustable platform with a laser displacement sensor, allowing for flexible adjustment of the sensor's vertical height and horizontal position to align with the spring's top. This design effectively overcomes the impact of vibration and pose changes on testing accuracy, ensuring the repeatability and accuracy of free height testing results for different batches and specifications of springs, thus improving the equipment's adaptability. Attached Figure Description

[0017] Figure 1 This utility model presents a schematic diagram of the overall structure of a high-speed automatic sorting machine with spring-free height for a hydraulic pallet truck. Figure 1 ; Figure 2 This utility model presents a schematic diagram of the overall structure of a high-speed automatic sorting machine with spring-free height for a hydraulic pallet truck. Figure 2 ; Figure 3 This is a schematic diagram of the sorting direction of the high-speed automatic sorting machine with spring free height of the hydraulic pallet truck proposed in this utility model; Figure 4 This is a cross-sectional view of the high-speed automatic sorting machine with spring free height for hydraulic pallet trucks proposed in this utility model; Figure 5 for Figure 4 Enlarged view of a portion of point A in the middle.

[0018] Among them, 1. Support cylinder; 11. Placement slot; 12. Classification collection box; 13. Height detection mechanism; 131. First slide rail; 132. First sliding block; 133. Second slide rail; 134. Second sliding block; 135. Laser displacement sensor; 14. Drive assembly; 141. Drive motor; 142. Drive gear; 143. Rotating shaft; 144. Driven gear; 15. Conductive slip ring; 16. Sorting plate; 161. Support slot; 162. Receiving slot; 163. Groove; 7. Sorting mechanism; 171. Telescopic cylinder; 172. Hinge seat one; 173. Sorting cylinder; 174. Hinge seat two; 175. Hinge seat three; 176. Link two; 177. Link one; 2. Feeding mechanism; 21. Conveyor belt conveyor; 22. Support column; 23. Baffle; 24. L-shaped support rod; 25. Arc-shaped limiting plate. Detailed Implementation

[0019] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0020] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] Unless otherwise expressly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. The present invention will be further described in detail below with reference to the accompanying drawings.

[0022] like Figure 1-5As shown, the present invention provides a hydraulic pallet truck spring free height high-speed automatic sorting machine, including a support cylinder 1, a sorting plate 16 rotatably arranged inside the support cylinder 1, a plurality of support grooves 161 evenly arranged on the top of the sorting plate 16, and a plurality of sorting mechanisms 7 arranged on the sorting plate 16 corresponding to the plurality of support grooves 161. A feeding mechanism 2 is provided on the side of the support cylinder 1; a placement groove 11 is provided on the top of the support cylinder 1, and a height detection mechanism 13 for detecting the free height of the spring is fixedly installed in the placement groove 11; multiple sets of sorting collection boxes 12 are evenly arranged in the placement groove 11 along the rotation direction of the sorting plate 16, and each set of sorting collection boxes 12 corresponds to springs in different height ranges, and is used to sort and collect springs after height detection and sorting; a drive assembly 14 is provided in the support cylinder 1, and the drive assembly 14 is connected to the sorting plate 16 for driving the sorting plate 16 to rotate around its own axis, so that each set of support grooves 161 and the sorting mechanism 7 pass through the feeding station, the height detection station and the unloading collection station in sequence, realizing the continuous automatic sorting operation of springs.

[0023] like Figure 1-5 As shown, multiple sets of receiving slots 162 are evenly provided on the sorting plate 16 corresponding to the sorting mechanism 7; a groove 163 is provided on the top edge of the sorting plate 16; The sorting mechanism 7 includes a telescopic cylinder 171 fixed to the bottom of the sorting plate 16, a hinge seat 172 mounted on the piston rod of the telescopic cylinder 171, a sorting cylinder 173 movably mounted on the support groove 161, a hinge seat 2 174 fixed to the side of the sorting cylinder 173 near the telescopic cylinder 171, a hinge seat 3 175 fixed to the other side of the sorting cylinder 173, a connecting rod 2 176 fixed in the groove 163, and a connecting rod 177 whose two ends are respectively hinged to the hinge seat 172 and the hinge seat 2 174; the end of the connecting rod 2 176 is hinged to the hinge seat 3 175. The piston rod of the telescopic cylinder 171 extends upward through the bottom of the sorting plate 16 and is located in the receiving groove 162. When the telescopic cylinder 171 is activated, its piston rod extends and retracts in the vertical direction. Through the linkage of the first hinge seat 172, the first connecting rod 177, and the second hinge seat 174, the sorting cylinder 173 is driven to rotate around the hinge point of the third hinge seat 175 and the second connecting rod 176, so that the opening of the sorting cylinder 173 faces the groove 163, thereby tilting and discharging the spring that has completed the height detection through the groove 163, realizing the rapid unloading and collection of the spring. The top of the sorting cylinder 173 is a conical cylinder, and the bottom is a cylinder that matches the shape of the support groove 161. The conical structure can guide the falling spring, making it easy for the spring to fall accurately into the sorting cylinder 173 and to stably position the bottom of the spring in the support groove 161, ensuring the consistency of posture during height detection.

[0024] like Figure 1-4As shown, the feeding mechanism 2 includes a conveyor belt 21, a support column 22 for supporting the conveyor belt 21, and baffles 23 symmetrically fixed on both sides of the conveyor belt 21. The discharge end of the conveyor belt 21 is located obliquely above the sorting cylinder 173. The baffles 23 are used to limit the lateral position of the springs during the conveying process to prevent them from tilting. The feed end of the conveyor belt 21 is connected to an external feeder, which can vertically convey the springs pre-treated by the feeder to the conveyor belt at a preset interval, and then convey them one by one from the discharge end of the conveyor belt 21 into the sorting cylinder 173 that has been rotated to the feeding station. Two sets of baffles 23 are fixed with L-shaped support rods 24, and the ends of the L-shaped support rods 24 are fixedly connected with arc-shaped limiting plates 25. The arc surfaces of the two sets of arc-shaped limiting plates 25 are arranged opposite to each other. The arc surface structure of the arc-shaped limiting plates 25 can be used to guide and limit the posture of the spring that is about to fall from the discharge end of the conveyor belt 21, ensuring that the spring falls vertically into the sorting cylinder 173.

[0025] like Figure 4 As shown, the drive assembly 14 includes a drive motor 141 fixed inside the support cylinder 1, a drive gear 142 fixedly connected to the output shaft of the drive motor 141, a rotating shaft 143 rotatably mounted inside the support cylinder 1, and a driven gear 144 fixedly sleeved on the rotating shaft 143; the drive gear 142 meshes with the driven gear 144; the sorting plate 16 is circular and coaxially fixedly mounted on the top of the rotating shaft 143; when the drive motor 141 is started, its output shaft drives the drive gear 142 to rotate, and through gear meshing transmission drives the driven gear 144 and the rotating shaft 143 to rotate synchronously, thereby driving the sorting plate 16 to rotate around the axis of the rotating shaft 143, realizing the cyclic switching of each sorting mechanism 7 between different workstations; A conductive slip ring 15 is fixedly sleeved on the rotating shaft 143. The conductive slip ring 15 is located between the sorting plate 16 and the driven gear 144. Its stator end is connected to an external power source, and its rotor end is electrically connected to each set of telescopic cylinders 171 at the bottom of the sorting plate 16. It is used to lead out the power supply lines of each set of telescopic cylinders 171, effectively avoiding the problem of wire entanglement during the rotation of the sorting plate 16.

[0026] like Figure 1-3 As shown, the height detection mechanism 13 includes a first slide rail 131 vertically fixed in the placement groove 11 at the top of the support cylinder 1, a first sliding block 132 slidably installed on the first slide rail 131, a second slide rail 133 horizontally fixed on the first sliding block 132, a second sliding block 134 slidably installed on the second slide rail 133, and a laser displacement sensor 135 fixed on the second sliding block 134; The detection end of the laser displacement sensor 135 is vertically downward and faces the sorting cylinder 173 that is rotated to the detection station. Through the sliding cooperation of the first sliding block 132 and the second sliding block 134, the position of the laser displacement sensor 135 in the vertical and horizontal directions can be adjusted to ensure that the detection end is aligned with the top of the spring inside the sorting cylinder 173.

[0027] In practical use The first step is equipment preparation and loading. The pre-treated springs are neatly arranged in the external feeder, standing upright. The conveyor belt 21 is started, and the feeder releases the springs one by one onto the conveyor belt at preset intervals. The baffles 23 on both sides of the conveyor belt and the arc-shaped limiting plates 25 at the ends constrain and guide the springs, ensuring they are transported to the discharge end in a stable posture.

[0028] The second step is rotational material receiving and height detection. The drive motor 141 drives the circular sorting plate 16 to rotate at a constant speed via a gear set. When the sorting cylinder 173 carrying the spring rotates with the sorting plate 16 to the feeding station, the spring at the conveyor belt's outlet end falls into the sorting cylinder 173 under gravity and guidance, and is guided by its top conical structure, ensuring the bottom of the spring accurately sits in the support groove 161. The sorting plate 16 continues to rotate, delivering the sorting cylinder 173 to the detection station. At this time, the laser displacement sensor 135, pre-positioned in the height detection mechanism 13, is triggered, performing non-contact height measurement of the spring's top and sending the data to an external control system (not shown in the figure).

[0029] The third step is judgment, flipping, and sorting collection. The external control system determines the specification range of the spring based on the measured free height data. The sorting plate 16 continues to rotate, bringing the sorting cylinder 173 to the corresponding unloading and collection station. At this time, the control system instructs the telescopic cylinder 171 at the bottom of the sorting mechanism 7 at this station to actuate. The cylinder piston rod retracts, driving the sorting cylinder 173 to rapidly flip around the fixed hinge point formed by the hinge seat 175 and the connecting rod 176 through the linkage of the hinge seat 172, connecting rod 177, and hinge seat 2 174. The opening of the sorting cylinder 173 faces the groove 163 on the edge of the sorting plate 16. Under the action of gravity, the spring inside the cylinder slides out through the groove 163 and accurately falls into the corresponding sorting collection box 12 placed below, completing the sorting. After the sorting collection box 12 is full, it can be transported and transferred from the placement slot 11 as a whole. Subsequently, the telescopic cylinder 171 resets, the sorting cylinder 173 returns to the vertical feeding state, and enters the next cycle with the sorting plate 16.

[0030] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A high-speed automatic sorting machine with spring-free height for hydraulic pallet trucks, comprising a support cylinder (1), characterized in that: A sorting plate (16) is rotatably arranged inside the support cylinder (1). Multiple sets of support grooves (161) are evenly arranged on the top of the sorting plate (16). Multiple sets of sorting mechanisms (7) are arranged on the sorting plate (16) corresponding to the multiple sets of support grooves (161). The side of the support cylinder (1) is provided with a feeding mechanism (2). The top of the support cylinder (1) is provided with a placement groove (11), and a height detection mechanism (13) for detecting the free height of the spring is fixedly installed in the placement groove (11). The support cylinder (1) is provided with a drive assembly (14), which is connected to the sorting plate (16) in a transmission manner.

2. The high-speed automatic sorting machine with spring free height for hydraulic pallet trucks according to claim 1, characterized in that: The sorting plate (16) has multiple sets of receiving slots (162) evenly distributed on it in relation to the sorting mechanism (7). The top edge of the sorting plate (16) is provided with a groove (163).

3. A high-speed automatic sorting machine for spring free height of a hydraulic pallet truck according to claim 2, characterized in that: The sorting mechanism (7) includes a telescopic cylinder (171) fixed to the bottom of the sorting plate (16), a hinge seat one (172) mounted on the piston rod of the telescopic cylinder (171), a sorting cylinder (173) movably mounted on the support groove (161), a hinge seat two (174) fixed to the side of the sorting cylinder (173) near the telescopic cylinder (171), a hinge seat three (175) fixed to the other side of the sorting cylinder (173), a connecting rod two (176) fixed in the groove (163), and a connecting rod one (177) with both ends hinged to the hinge seat one (172) and the hinge seat two (174) respectively. The end of the second connecting rod (176) is hinged to the third hinge seat (175); The piston rod of the telescopic cylinder (171) extends upward through the bottom of the sorting plate (16) and is located in the receiving groove (162).

4. A high-speed automatic sorting machine for spring free height of a hydraulic pallet truck according to claim 3, characterized in that: The top of the sorting cylinder (173) is a conical cylinder, and the bottom is a cylinder that matches the shape of the support groove (161).

5. A high-speed automatic sorting machine for spring free height of a hydraulic pallet truck according to claim 1, characterized in that: The feeding mechanism (2) includes a conveyor belt (21), a support column (22) for supporting the conveyor belt (21), and baffles (23) symmetrically fixed on both sides of the conveyor belt (21). The discharge end of the conveyor belt (21) is located diagonally above the sorting cylinder (173).

6. A high-speed automatic sorting machine for spring free height of a hydraulic pallet truck according to claim 5, characterized in that: Two sets of baffles (23) are fixed with L-shaped support rods (24), and the ends of the L-shaped support rods (24) are fixedly connected with arc-shaped limiting plates (25). The arc surfaces of the two sets of arc-shaped limiting plates (25) are arranged opposite to each other.

7. A high-speed automatic sorting machine for spring free height of a hydraulic pallet truck according to claim 1, characterized in that: The drive assembly (14) includes a drive motor (141) fixed inside the support cylinder (1), a drive gear (142) fixedly connected to the output shaft of the drive motor (141), a rotating shaft (143) rotatably installed inside the support cylinder (1), and a driven gear (144) fixedly sleeved on the rotating shaft (143). The driving gear (142) meshes with the driven gear (144); The sorting plate (16) is circular and is coaxially fixedly installed on the top of the rotating shaft (143).

8. A high-speed automatic sorting machine for spring free height of a hydraulic pallet truck according to claim 7, characterized in that: A conductive slip ring (15) is fixedly sleeved on the rotating shaft (143); The conductive slip ring (15) is located between the sorting plate (16) and the driven gear (144).

9. A high-speed automatic sorting machine for spring free height of a hydraulic pallet truck according to claim 1, characterized in that: The height detection mechanism (13) includes a first slide rail (131) vertically fixed in the top placement groove (11) of the support cylinder (1), a first sliding block (132) slidably installed on the first slide rail (131), a second slide rail (133) horizontally fixed on the first sliding block (132), a second sliding block (134) slidably installed on the second slide rail (133), and a laser displacement sensor (135) fixed on the second sliding block (134). The detection end of the laser displacement sensor (135) is vertically downward, facing the sorting cylinder (173) that has been rotated to the detection station.

10. A high-speed automatic sorting machine for spring free height of a hydraulic pallet truck according to claim 1, characterized in that: Multiple sets of sorting collection boxes (12) are evenly arranged in the placement slot (11) along the rotation direction of the sorting plate (16).

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