Automatic receiving and counting device for valve seat inserts

Abstract

This utility model relates to the field of valve seat production technology, specifically disclosing an automatic receiving and counting device for valve seats, including a conveying component, a counting unit, and a receiving component. The conveying component sequentially conveys workpieces to the counting unit and the receiving component, and the counting unit counts the number of workpieces passing through. The receiving component includes several baskets connected to the conveying component, with the baskets connected end-to-end and rotating relative to the conveying component. This utility model automatically counts the number of conveyed workpieces by setting a counting unit on the conveying component, and then placing the conveyed workpieces in several baskets connected end-to-end. The baskets rotate relative to the outlet of the conveying component to automatically change the position between full and empty baskets. When all baskets are full, the operator replaces all the baskets, thereby increasing the receiving cycle time and allowing the operator to operate multiple devices simultaneously, thus improving the receiving and counting efficiency.

Description

Technical Field

[0001] This utility model relates to the field of valve seat production technology, specifically to an automatic material receiving and counting device for valve seats. Background Technology

[0002] To address the technical challenges in the final packaging stage of valve seat production, manual material handling presents three main problems that require optimization through automated counting: First, manual counting is prone to errors due to fatigue or negligence, while OEMs require packaging quantities to strictly conform to order specifications (e.g., fixed quantity per box, grouping of the same model). Discrepancies will result in customer rejection, leading to logistics costs and supply chain disruptions. Second, when equipment such as centerless grinders continuously discharge materials, workers must hold baskets throughout the process, handling thousands of pieces per shift. In processes like fine grinding of the outer diameter, workers frequently need to change baskets and move them to the packaging area, consuming significant working hours. With large-scale production, manpower input increases linearly, hindering capacity growth. Third, manual handling of finished valve seat rings may introduce contaminants such as sweat and oil, violating the process specification of "cleaning and rust prevention before packaging."

[0003] The existing Chinese patent CN221025913U discloses an automatic valve seat ring receiving device, including a frame, a conveying mechanism that moves intermittently on the frame, multiple material baskets on the conveying mechanism that can be intermittently conveyed with the conveying mechanism, and a material level sensor on the frame for detecting whether the material baskets at the discharge port are full. The conveying mechanism can drive the full material baskets to be conveyed outward and move the empty material baskets to the discharge port. The conveying mechanism includes a motor on the side wall of the frame, transmission rollers on the inner walls of both sides of the frame, and a conveyor belt sleeved on the transmission rollers. The motor is connected to one set of the transmission rollers. This invention can automatically receive the produced valve seat rings without the need for manual handling of the material baskets, saving time and manpower.

[0004] However, during the implementation of this patent embodiment, the inventors of this application discovered that: in this patent, the material basket is conveyed in a straight line along the transmission belt. The full material basket moves away from the grinding machine outlet, and another empty material basket moves to below the grinding machine outlet to continue receiving material. During this process, after one material basket is full, the conveying mechanism stops, the operator pours it out and stores it, and places the empty material basket at the input end of the conveying mechanism. Thus, one receiving cycle is completed. Although this patent achieves automatic receiving, the receiving cycle is short, which makes it impossible for the operator to be responsible for multiple devices at the same time, reducing the efficiency of workpiece receiving and counting. Utility Model Content

[0005] This invention addresses the problem of low efficiency in automatic valve seat ring receiving and counting by providing an automatic valve seat ring receiving and counting device. The specific technical solution is as follows:

[0006] An automatic receiving and counting device for valve seat rings includes: a conveying component, a counting unit, and a receiving component; the conveying component sequentially conveys workpieces to the counting unit and the receiving component, the counting unit is capable of counting the number of workpieces passing through; and the receiving component includes a plurality of baskets that can communicate with the conveying component, the plurality of baskets being connected end to end and rotating relative to the conveying component to place workpieces after passing through the counting unit.

[0007] Furthermore, the receiving assembly also includes a rotating bracket fixed at the bottom relative to the conveying assembly. The top of the rotating bracket forms a rotating structure, and several material baskets are placed on the top of the rotating bracket. The rotating bracket can connect empty material baskets to the conveying assembly one by one, and the rotating bracket can separate full material baskets from the conveying assembly.

[0008] Preferably, the material basket connected to the conveying component is designated as material basket C; the receiving component also includes a full material detection sensor located at the bottom of the rotating bracket. The full material detection sensor is located on the side of material basket C, and the beam path D of the full material detection sensor is at the same height as the top surface of material basket C. When the beam path D is blocked by the workpiece, it indicates that material basket C is in a full material state.

[0009] Preferably, the counting unit is an infrared sensor, the beam path E of the counting unit is parallel to the conveying surface of the conveying component, and the distance H between the beam path E and the conveying surface satisfies: 1mm≤H≤3mm.

[0010] Preferably, the conveying assembly includes: a belt conveyor for conveying workpieces, the conveying surface of the belt conveyor being higher than the top surface of the basket; a weighing machine disposed on the belt conveyor, the weighing machine being capable of measuring the weight of the conveyed workpieces; and a discharge plate disposed at the discharge port of the belt conveyor, the discharge plate connecting the discharge port and a single basket to allow workpiece movement.

[0011] Preferably, the length direction of the discharge plate is the moving direction of the workpiece, and limiting plates are formed on both sides of the discharge plate along the length direction.

[0012] Preferably, the material of the discharge plate is aluminum alloy.

[0013] As can be seen from the above technical solution, this utility model has the following beneficial effects:

[0014] This invention automatically counts the number of workpieces conveyed by setting a counting unit on the conveying component. Secondly, several baskets connected end to end are set up to hold the conveyed workpieces. The baskets rotate relative to the discharge port of the conveying component to automatically change the position between full and empty baskets. When all baskets are full, the operator replaces all the baskets, thereby increasing the material receiving cycle time and enabling the operator to operate multiple devices simultaneously, thus improving the material receiving and counting efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0016] Figure 2 for Figure 1 Enlarged view of the structure at point A in the image;

[0017] Figure 3 for Figure 1 Enlarged view of the structure at point B in the image.

[0018] In the diagram: 1. Conveying assembly; 11. Belt conveyor; 12. Weighing machine; 13. Discharge plate; 2. Counting unit; 3. Receiving assembly; 31. Rotating support; 32. Material basket; 33. Full material detection sensor. Detailed Implementation

[0019] 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, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. They are 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.

[0021] like Figure 1 and Figure 2 As shown, this embodiment is an automatic receiving and counting device for valve seat rings, which includes: a conveying component 1, a counting unit 2, and a receiving component 3; the conveying component 1 conveys the workpieces sequentially to the counting unit 2 and the receiving component 3, the counting unit 2 can count the number of workpieces that have passed through; and the receiving component 3 includes a plurality of material baskets 32 that can communicate with the conveying component 1, the plurality of material baskets 32 being connected end to end and rotating relative to the conveying component 1 to place the workpieces that have passed through the counting unit 2.

[0022] Specifically, the conveying component 1 forms a conveying mechanism for conveying valve seat rings. During the conveying process, the valve seat rings pass through the working range of the counting unit 2, ensuring that each conveyed valve seat ring can be counted by the counting unit 2. After the valve seat rings have been counted, they are conveyed from the discharge port into several material baskets 32 for storage. The several material baskets 32 are connected end to end to form a continuous holding container. As the several material baskets 32 rotate relative to the discharge port of the conveying component 1, the holding container can always be connected to the discharge port, thus always collecting the conveyed workpieces and realizing automatic receiving and counting. When the several material baskets 32 have held a sufficient number of workpieces, the operator moves them to the next process position, thus completing one receiving cycle. This increases the duration of the receiving cycle, allowing the operator to handle multiple cases simultaneously, thereby improving the efficiency of workpiece receiving and counting.

[0023] Secondly, this embodiment includes four material baskets 32, all of which are identical rectangular frames with adjacent sides overlapping to form a continuous connection, so that each of the four material baskets 32 occupies one-quarter of the space. When one material basket 32 ​​is connected to the outlet of the conveying component 1 and thus holds the completed workpieces, the material basket 32 ​​only needs to rotate 90 degrees relative to the conveying component 1 to separate the full material basket 32 ​​from the outlet of the conveying component 1 and connect the adjacent empty material basket 32 ​​to the outlet of the conveying component 1 until all four material baskets 32 are full. The operator then moves the full material basket 32 ​​to the next process position and places the empty material basket 32 ​​back to the receiving position, thus completing one receiving cycle.

[0024] During the process of the workpiece entering the basket 32, the workpiece always falls from the discharge port of the conveying component 1 into the diagonal intersection of the basket 32, so that the stored workpiece gradually forms a cone-shaped structure. When the height of the cone is equal to the depth of the internal cavity of the basket 32, the basket 32 ​​is in a full state.

[0025] Furthermore, the receiving component 3 also includes a rotating bracket 31 whose bottom is fixed relative to the conveying component 1. The top of the rotating bracket 31 forms a rotating structure. Several material baskets 32 are placed on the top of the rotating bracket 31. The rotating bracket 31 can connect empty material baskets 32 to the conveying component 1 one by one, and the rotating bracket 31 can separate full material baskets 32 from the conveying component 1.

[0026] Specifically, the bottom of the rotating bracket 31 and the conveying component 1 are fixedly connected to the support surface. The top of the bracket is a rotating structure that can rotate relative to the conveying component 1. This rotating structure includes a tray holding four baskets 32 and a motor gear transmission mechanism. The motor drives the gear, which in turn drives the tray to rotate. The rotating tray then drives the baskets 32 to rotate relative to the discharge port of the conveying component 1. The number of rotations of the motor per rotation needs to be set to determine the angle of rotation of the tray per rotation, thus ensuring that the full baskets 32 can be separated from the discharge port of the conveying component 1, and that the adjacent empty baskets 32 are connected to the discharge port of the conveying component 1. The number of rotations of the motor per rotation is directly proportional to the angle of rotation of the tray per rotation, and the angle of rotation of the tray per rotation is inversely proportional to the number of baskets 32. The specific correspondence can be determined by commonly used formulas in the mechanical field. In this embodiment, there are four baskets 32, the tray rotates 90 degrees per rotation, and the number of rotations of the motor per rotation is related to the gear transmission ratio. The corresponding relationship can be determined by commonly used formulas in the mechanical field.

[0027] like Figure 3 As shown, the material basket 32 ​​connected to the conveying component 1 is defined as the material basket C; the receiving component 3 also includes a full material detection sensor 33 set at the bottom of the rotating bracket 31. The full material detection sensor 33 is set on the side of the material basket C. The beam path D of the full material detection sensor 33 is at the same height as the top surface of the material basket C. When the beam path D is blocked by the workpiece, it indicates that the material basket C is in a full material state.

[0028] Specifically, in this embodiment, during the material receiving cycle, all baskets 32 connected to the discharge port of the conveying component 1 are named baskets C for ease of describing the material receiving action. Baskets C are fixed relative to the discharge port of the conveying component 1. When the counting unit 2 counts a specified number of workpieces entering basket C, basket C is in a full state. The rotating bracket 31 indirectly drives the full basket 32 ​​to separate from the discharge port, and the adjacent empty basket 32 ​​connects to the discharge port to form a new basket C. The specified number of workpieces is inversely proportional to the size of the workpieces. When changing the size of the workpieces, the operator needs to first determine, according to the counting unit 2, how many workpieces are needed to fill basket C. This ensures that during subsequent material receiving and counting processes, once the specified number of workpieces is placed in basket C, the rotating bracket 31 can rotate.

[0029] Secondly, the full-load detection sensor 33 is fixedly connected to the bottom of the rotating bracket 31, preventing it from rotating relative to the basket 32. This fixes the position of its beam path D relative to the outlet of the conveying component 1, and consequently, the top surface of the basket C. The full-load detection sensor 33 is an infrared sensor, comprising a transmitter and a receiver, which are respectively connected to the two sides of the basket C relative to the conveying component 1. When a specified number of workpieces are placed in the basket C, the highest workpiece is located at the intersection of the diagonals on its top surface. As the basket C rotates, the intersection of the diagonals rotates accordingly, gradually approaching the beam path D. When a workpiece blocks the beam path D during the 90-degree rotation of the basket C, it indicates that the basket C is full. When no workpiece blocks the beam path D during the 90-degree rotation of the basket C, it indicates that the basket C is not full. This triggers a signal to sound an alarm, stops the rotating bracket 31 from rotating, and allows the operator to adjust the basket C in time to ensure it is full.

[0030] When the material basket C is receiving material, its position relative to the conveying component 1 is fixed, and the beam path D does not pass through the intersection of the top diagonal lines of the material basket C at this time. When the material basket C containing a specified number of materials rotates, its diagonal intersection point moves away from the falling path of the workpiece, and the beam path D passes through the intersection of the top diagonal lines of the material basket C, thus preventing the falling workpiece from blocking the beam path D and triggering the alarm, thereby reducing false alarms, reducing downtime, and improving the detection accuracy of the full material state.

[0031] Furthermore, the counting unit 2 is an infrared sensor, and the beam path E of the counting unit 2 is parallel to the conveying surface of the conveying component 1. The distance H between the beam path E and the conveying surface satisfies: 1mm≤H≤3mm.

[0032] Specifically, infrared sensors are installed at both ends of the conveying assembly 1, and further at both ends of the workpiece conveying path. The beam path E generated by the sensors is parallel to the conveying surface of the conveying assembly 1 used to convey the workpiece. During the conveying process, the thickness direction of the workpiece is perpendicular to the conveying surface, its bottom surface coincides with the conveying surface, and its top surface is parallel to the conveying surface. The distance H between the plane containing the beam path E and the conveying surface needs to be less than the thickness of the workpiece, so that the conveyed workpiece can block the beam path E from triggering the counting signal.

[0033] When H < 1 mm, the beam path E is too close to the conveying surface, and slight unevenness on the conveying surface may block the beam path E from triggering the counting signal, affecting the counting result. When H > 3 mm, the beam path E is too far from the conveying surface, and too close to the top surface of the workpiece. Slight unevenness on the conveying surface may cause the top surface of the workpiece to undulate, thus preventing the workpiece from blocking the beam path E from triggering the counting signal, affecting the counting result. The preferred embodiment in this case is 2 mm.

[0034] The range of H is directly related to the thickness of the workpiece. In this embodiment, the workpiece thickness is 4-5 mm. When the thickness of the workpiece to be counted is >5 mm, the range of H increases. In the preferred embodiment, the range of H increases. The specific value is determined based on the experience of those skilled in the art and the trial production before actual production.

[0035] Furthermore, the conveying assembly 1 includes: a belt conveyor 11 for conveying workpieces, the conveying surface of the belt conveyor 11 being higher than the top surface of the basket 32; a weighing machine 12 disposed on the belt conveyor 11, the weighing machine 12 being capable of measuring the weight of the conveyed workpieces; and a discharge plate 13 disposed at the discharge port of the belt conveyor 11, the discharge plate 13 connecting the discharge port and the individual basket 32 ​​to allow workpiece movement.

[0036] Specifically, the belt conveyor 11 includes a belt, the top surface of which is the conveying surface, and its structure is a conventional design in the conveying field. Secondly, the discharge port of the conveying surface is connected to one end of the discharge plate 13, and the other end is located directly above the intersection of the top diagonals of the material basket C. The discharge port is placed at an angle, so that the workpiece enters the discharge plate 13 from the discharge port and slides down into the material basket C under the action of gravity, landing at the intersection of the diagonals and gradually accumulating into a cone shape. The discharge plate 13 is always higher than the top surface of the material basket C to avoid interference between the material basket C and the discharge plate 13 during the rotation of the material basket C.

[0037] Secondly, the weighing machine 12 is located in the middle of the belt. It can measure and count the weight of a single workpiece. Its structure is a conventional design and will not be described in detail here.

[0038] Furthermore, the length direction of the discharge plate 13 is the moving direction of the workpiece, and limiting plates are formed on both sides of the discharge plate 13 along the length direction.

[0039] Specifically, the discharge plate 13 forms an inclined slope, causing the workpiece to slide down into the material basket C under the action of gravity. Its movement direction is the length direction of the discharge plate 13, reducing the distance the workpiece moves along the width direction of the discharge plate 13, thereby reducing the deviation between the position of the fallen workpiece and the intersection of the diagonals. Secondly, the two limiting plates in the width direction protrude from the inclined slope, which can limit the distance the workpiece moves along the width direction, thereby preventing the workpiece from falling from both sides of the discharge plate 13 and causing damage to the workpiece.

[0040] Furthermore, the material of the discharge plate 13 is aluminum alloy.

[0041] Specifically, in this embodiment, the valve seat ring is made of powder metallurgy, and its surface hardness is greater than that of aluminum alloy. This ensures that when the valve seat ring slides along the surface of the discharge plate 13, the discharge plate 13 will not cause scratches to it, thereby avoiding affecting its function.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

[0043] The technologies, shapes, and structures not described in detail in this utility model are all known technologies.

Claims

1. An automatic receiving and counting device for valve seat rings, characterized in that, include: Conveying assembly (1), counting unit (2), and receiving assembly (3); The conveying assembly (1) sequentially conveys the workpieces to the counting unit (2) and the receiving assembly (3), and the counting unit (2) is capable of counting the number of workpieces that pass through; and The receiving component (3) includes several baskets (32) that can communicate with the conveying component (1). The baskets (32) are connected end to end and rotate relative to the conveying component (1) to place the workpiece after passing through the counting unit (2).

2. The automatic material receiving and counting device according to claim 1, characterized in that: The receiving assembly (3) also includes a rotating bracket (31) whose bottom is fixed relative to the conveying assembly (1). The top of the rotating bracket (31) forms a rotating structure. Several material baskets (32) are placed on the top of the rotating bracket (31). The rotating bracket (31) can connect the empty material baskets (32) to the conveying assembly (1) one by one. The rotating bracket (31) can separate the full material baskets (32) from the conveying assembly (1).

3. The automatic material receiving and counting device according to claim 2, characterized in that: The basket (32) connected to the conveying assembly (1) is designated as basket (32)C; The receiving assembly (3) also includes a full material detection sensor (33) disposed at the bottom of the rotating bracket (31). The full material detection sensor (33) is disposed on the side of the material basket (32) C. The beam path D of the full material detection sensor (33) is at the same height as the top surface of the material basket (32) C. When the beam path D is blocked by the workpiece, it indicates that the material basket (32) C is in a full material state.

4. The automatic material receiving and counting device according to claim 1, characterized in that: The counting unit (2) is an infrared sensor. The beam path E of the counting unit (2) is parallel to the conveying surface of the conveying component (1). The distance H between the beam path E and the conveying surface satisfies: 1mm≤H≤3mm.

5. The automatic material receiving and counting device according to claim 1, characterized in that: The conveying assembly (1) includes: A belt conveyor (11) for conveying workpieces, wherein the conveying surface of the belt conveyor (11) is higher than the top surface of the basket (32); A weighing machine (12) is installed on the belt conveyor (11), the weighing machine (12) being capable of measuring the weight of the conveyed workpiece; and A discharge plate (13) is provided at the discharge port of the belt conveyor (11), the discharge plate (13) connecting the discharge port and a single basket (32) to allow workpiece movement.

6. The automatic material receiving and counting device according to claim 5, characterized in that: The length direction of the discharge plate (13) is the moving direction of the workpiece, and the discharge plate (13) has a limiting plate on both sides along the length direction.

7. The automatic material receiving and counting device according to claim 6, characterized in that: The material of the discharge plate (13) is aluminum alloy.

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