Automatic valve ball mounting device for oil injector

Abstract

The utility model relates to an automatic valve ball installing device for an oil injector. The device comprises a container used for containing a valve ball. A first valve ball transfer groove is formed in the movable guide column, a tunnel allowing the valve balls to roll is designed in the movable guide column, a first opening of the tunnel is located in the end of the movable guide column, and a second opening is located in the side wall of the movable guide column; the guide sleeve part surrounds the periphery of the movable guide column and is provided with a second valve ball transfer groove; the power device is used for driving the movable guide column to reciprocate between a first position and a second position; when the movable guide column is located at the first position, the first valve ball transfer groove communicates with the second valve ball transfer groove, and the second opening is sealed by the guide sleeve part. When the movable guide column is located at the second position, the first valve ball transfer groove is communicated with the container, and the second opening is communicated with the second valve ball transfer groove. The problems that manual valve ball installation is low in efficiency, difficult to standardize, unstable in productivity and the like are solved.

Description

Technical Field

[0001] The invention belongs to the technical field of mechanical automation equipment and precision assembly, and particularly relates to a fuel injector assembly installation technology. Background Art

[0002] The injector valve ball is a critical component in the injector assembly, and its installation quality directly impacts the injector's performance and reliability. Currently, injector valve balls are primarily installed manually. Operators manually insert the valve ball into the injector, but due to its small size, manual handling and placement are difficult, making it difficult to accurately grasp and position the ball. This can lead to dropped balls, or multiple balls being handled at once, resulting in installation errors.

[0003] Manual installation of valve balls has the following defects:

[0004] 1. Low installation efficiency. Because the valve ball is small and difficult to operate, each manual installation takes a long time, resulting in low overall installation efficiency. For manufacturers who need to mass-produce injectors, manual installation cannot meet the needs of efficient production.

[0005] 2. Difficulty in standardization. Different operators have different proficiency levels, installation techniques, and speeds, making it difficult to ensure installation quality and time consistency during mass production. This instability affects the controllability of product quality and the standardized management of the production process.

[0006] 3. Unstable production capacity. Manual installation depends on the personal ability and status of the operator. Once the personnel changes or the status is not good, it will affect the production progress, making it difficult to ensure stable production capacity, thus affecting the factory's normal production plan and delivery cycle.

[0007] 4. The operation is difficult and the valve ball is small in size. Operators are prone to make mistakes when picking up and placing it, causing the valve ball to fall or be installed incorrectly, increasing rework and quality risks.

[0008] To address these issues, improve injector valve ball installation efficiency, ensure consistent installation quality, and achieve standardized production processes and stable production capacity, an automated injector valve ball installation device is urgently needed. This device should be able to precisely transport and install valve balls, reduce the impact of human factors on production, and meet the needs of high-volume, high-quality production. Summary of the Invention

[0009] This invention aims to provide an automatic valve ball installation device for fuel injectors, addressing the existing issues of manual valve ball installation, such as low installation efficiency, difficulty in standardization, and unstable production capacity. Through an automated mechanical structure, the device achieves precise, efficient, and stable valve ball installation, meeting the needs of mass production.

[0010] To achieve the above object, the present invention provides an automatic valve ball installation device for a fuel injector, comprising:

[0011] This container is used to hold a large number of valve balls, capable of holding 6,000 to 10,000 balls at a time. This ensures an adequate supply of valve balls during mass production, reduces the need for frequent ball additions, and improves production efficiency. The container consists of a cylindrical body and a lid, which form a sealed container with the fourth guide sleeve of the guide sleeve.

[0012] The movable guide post is equipped with a first valve ball transfer trough, within which a tunnel for the valve ball to roll is located. The tunnel consists of a first portion and a second portion. The first portion is located at the axis of the movable guide post and terminates at a first opening at the end of the movable guide post. The second portion extends from the center of the movable guide post at an angle to the axis of the movable guide post, connecting the first portion and the second opening. The first opening is located at the end of the movable guide post, and the second opening is located on the side wall. An inclined guide surface is provided at the top of the movable guide post to ensure smooth rolling of the valve ball into the sinking trough.

[0013] The guide sleeve part is surrounded by the movable guide column and is provided with a second valve ball transfer groove. The guide sleeve part includes a first guide sleeve, a second guide sleeve, a third guide sleeve and a fourth guide sleeve:

[0014] The first guide sleeve is sleeved on the outside of the movable guide column and is provided with a waist-shaped groove.

[0015] The second guide sleeve is disposed externally of the first guide sleeve and closes the outer opening of the waist-shaped groove, forming a second valve ball transfer groove. A limit groove is disposed on the second guide sleeve, and a limit rod is disposed on the movable guide post. The limit rod moves only within the travel range defined by the limit groove, ensuring reciprocating motion of the movable guide post between the first position and the second position.

[0016] The third guide sleeve cooperates with other guide sleeve components to form a guiding and supporting function.

[0017] The fourth guide sleeve has a passage disposed therein and is in communication with the container. The fourth guide sleeve includes a first conical guide surface and a second conical guide surface disposed therein. The second conical guide surface is disposed in a recessed groove of the first conical guide surface to guide the valve ball into the movable guide post.

[0018] The power unit is used to drive the movable guide post to reciprocate between a first position and a second position. The power unit includes a linear drive device (such as a cylinder) and an elastic return device (such as a compression spring). The linear drive device is used to move the movable guide post from the first position to the second position, overcoming the spring force to achieve delivery and installation of the valve ball; the elastic return device is used to return the movable guide post from the second position to the first position.

[0019] The guide sleeve includes a guide groove communicating with the container. The guide groove and the outer wall of the movable guide post form a channel sized to accommodate only one valve ball. A retaining chamber is formed in the channel near the first valve ball transfer groove. The retaining chamber has a first inclined surface that allows the valve ball to roll from the retaining chamber into the first valve ball transfer groove for temporary storage, ensuring that only one valve ball is transferred at a time.

[0020] Working principle:

[0021] The valve ball enters the first valve ball transfer trough. When the movable guide post is in the second position, gravity forces the valve ball inside the container onto the tapered guide surface within the fourth guide sleeve, guiding the ball to the top of the movable guide post. The inclined guide surface causes the ball to roll into the sinking trough and into the first valve ball transfer trough. Simultaneously, the second opening communicates with the second valve ball transfer trough.

[0022] The valve ball is transferred to the second valve ball transfer groove. When the movable guide column moves from the second position to the first position, the valve ball in the first valve ball transfer groove rolls into the second valve ball transfer groove. At this time, the second opening is sealed by the guide sleeve, ensuring that the valve ball cannot flow out from the side.

[0023] The valve ball is installed in the injector. When the movable guide column moves to the second position again, the valve ball in the second valve ball transfer groove enters the second opening under the action of gravity, passes through the tunnel inside the movable guide column, and rolls from the first opening to the installation position of the injector, completing the precise installation of the valve ball.

[0024] Beneficial effects:

[0025] 1. Improve installation efficiency and realize rapid installation of valve balls through automated devices. Compared with manual operation, it is faster and can meet the needs of mass production.

[0026] 2. Achieve standardized production. The device operates according to preset procedures and parameters, is not affected by individual differences among operators, and ensures consistency in installation quality and time.

[0027] 3. Stable production capacity. The operation of the device does not depend on the personal ability of the operator. It can produce continuously and stably, ensuring the stability of the factory's production capacity.

[0028] 4. Precise installation mechanism, the design of the movable guide column matches the internal structure of the injector, ensuring that the valve ball can be accurately installed in the specified position, improving the installation accuracy and quality.

[0029] 5. The unique valve ball conveying mechanism adopts a barrel-shaped valve ball placement structure, which can place a large number of valve balls at one time, reducing the operation of frequently adding valve balls.

[0030] 6. High degree of automation, from the delivery of the valve ball, the positioning of the injector to the installation of the valve ball, the entire process is fully automated, without the need for manual intervention, greatly reducing labor costs.

[0031] 7. Operational safety: Due to the small size of the valve ball, manual operation is prone to misoperation. The automated device reduces manual contact and reduces operational risks.

[0032] 8. For single valve ball delivery, a precise valve ball delivery channel is formed through the cooperation of the first guide sleeve, the second guide sleeve and the fourth guide sleeve, ensuring that only one valve ball is delivered at a time; at the same time, the sizes of the first valve ball transfer groove, the second valve ball transfer groove and the second opening are precisely configured, so that when in the first position or the second position, the first valve ball transfer groove or the second opening is mutually exclusive connected to the second valve ball transfer groove, avoiding installation errors caused by the simultaneous delivery of multiple balls. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the overall structure of the automatic valve ball installation device for the fuel injector of the present invention.

[0034] Figure 2 It is a schematic structural diagram along the AA section of the automatic valve ball installation device for the fuel injector of the present invention.

[0035] Figure 3 The figure is a schematic diagram of the exploded structure of the automatic valve ball installation device for the fuel injector of the present invention.

[0036] Figure 4 The present invention is a schematic diagram of the three-dimensional structure of the movable guide column of the automatic valve ball installation device of the fuel injector.

[0037] Figure 5 It is a schematic diagram of the three-dimensional structure of the second guide sleeve and the fourth guide sleeve of the automatic valve ball installation device of the fuel injector of the present invention from another perspective.

[0038] Figure 6 This is a schematic diagram of the state of the movable guide column of the automatic valve ball installation device of the fuel injector of the present invention in the second position, showing the process of the valve ball entering the first valve ball transfer groove.

[0039] Figure 7 The present invention is a schematic diagram of an intermediate state of a movable guide post of an automatic valve ball installation device for a fuel injector during a process of returning from a second position to a first position.

[0040] Figure 8 The diagram is a schematic diagram of a state in which the movable guide post of the automatic valve ball installation device for the fuel injector of the present invention is completely reset to the first position. DETAILED DESCRIPTION

[0041] Please refer to Figure 1 , a schematic diagram of the overall structure of the injector automatic valve ball installation device 1000 of the present application.

[0042] The automatic valve ball installation device 1000 for a fuel injector of the present invention mainly includes a container 100 for accommodating a valve ball, a movable guide column 200, a tunnel 300, a guide sleeve 400, a power device 500, a first valve ball transfer groove 210, and a second valve ball transfer groove 411.

[0043] The automatic valve ball installation device 1000 for the fuel injector of the present invention realizes automatic storage, precise transfer and efficient installation of the valve ball 1001 by integrating the ball placement barrel 110 for accommodating the valve ball, the movable guide column 200 and its tunnel 300 for accurately controlling the transfer of the valve ball, the guide sleeve 400 for ensuring the single transfer of the valve ball 1001, and the power device 500 for providing stable drive. The design of the first valve ball transfer groove 210 and the second valve ball transfer groove 411 ensures that only one valve ball 1001 is transferred at a time, avoiding errors caused by simultaneous operation of multiple balls. The retaining chamber 470 of the guide sleeve 400 and the inclined guide surface 240 (such as Figure 7 The design (shown in Figure 5) ensures smooth flow and positioning of the valve ball 1001 during transport. The power unit 500, through the synergistic action of the slide and linear motor 510, achieves precise reciprocating motion of the movable guide post 200 between preset positions, improving the device's operating efficiency and stability. The overall device boasts a high degree of automation, significantly improving the efficiency and consistency of injector valve ball installation. This addresses the low efficiency, difficulty in standardization, and unstable production capacity associated with traditional manual installation methods. The device is suitable for large-scale production environments and possesses broad application prospects and significant market value.

[0044] Reference Figure 2 The container part of the device adopts a barrel-shaped structure, which is called a ball placement barrel 110. The ball placement barrel 110 is connected to the outside through the valve ball barrel cover 120, and can store 6,000 to 10,000 valve balls 1001 at a time to meet the needs of mass production. The design of the ball placement barrel 110 ensures that the valve balls 1001 remain stable before being taken out, and avoids the valve balls 1001 from rolling or becoming chaotic due to vibration or other external forces during storage, thereby ensuring the orderly supply of valve balls 1001. The main part of the container 100 includes a cover 120 and a barrel body 110. A small hole for ventilation is provided above the cover 120. The cover 120 is connected to the barrel body 110 through a snap on the edge and an internal flange. The barrel body 110 is connected to the guide sleeve 400 through a flange and a snap.

[0045] Reference Figure 3 and Figure 4The movable guide column 200 is the core component of the device and is responsible for the transfer and positioning of the valve ball 1001. A first valve ball transfer groove 210 is provided inside the movable guide column 200, and a tunnel 300 is provided inside for the valve ball to roll. The first opening 310 of the tunnel 300 is located at the end of the movable guide column 200. The first opening 310 is used to align with the valve ball assembly port of the injector when the movable guide column 200 is in the first position, so that the valve ball 1001 can smoothly roll into the injector 600; the second opening 320 is provided on the side wall of the movable guide column 200. The second opening facilitates the valve ball 1001 to enter the tunnel 300 of the movable guide column 200 from the second valve ball transfer groove 411.

[0046] The movable guide column 200 realizes reciprocating motion through the power device 500. When the movable guide column 200 is in the first position, the first valve ball transfer groove 210 is connected with the second valve ball transfer groove 411, and the second opening 320 is closed by the guide sleeve 400; when the movable guide column 200 moves to the second position, the valve ball 1001 in the container 100 enters the first valve ball transfer groove 210, and the second opening 320 is connected with the second valve ball transfer groove 411.

[0047] The first valve ball transfer groove 210 is provided on a plane near one side of the top of the movable guide column 200. The plane is cut out along the chord line of the circular projection surface of the cylindrical movable guide column 200 using a cutting or grinding process. A step surface perpendicular to the plane is provided at the end of the plane. The first valve ball transfer groove 210 includes a hemispherical groove structure provided on the inner side of the plane, and a hemispherical groove structure provided on the step surface. The two hemispherical structures are connected, and an inclined surface is formed inside thereof, which forms a certain angle with the vertical direction to facilitate the rolling of the valve ball. The openings of the two semi-grooved structures are both larger than the diameter of the valve ball 1001, so that the valve ball 1001 can roll in or out easily.

[0048] Furthermore, a portion of the opening of the hemispherical groove on the step surface is formed on the plane of the step, and another portion is formed on the arc-shaped side surface of the movable guide pillar 200 .

[0049] Furthermore, the top of the movable guide post 200 is provided with an inclined guide surface 240 so that in the second position (refer to Figure 6 ), the valve ball 1001 above the movable guide post 200 rolls into the sinking groove. In the second position, the movable guide post 200 moves upward. Due to the effects of inertia and gravity, the valve ball 1001 above the movable guide post 200 can roll toward the plane on one side of the top of the guide post 200, so as to be further guided to the first valve ball transfer groove 210.

[0050] Furthermore, the guide surface 240 intersects with a plane on one side of the top of the guide pillar 200 , and the plane continuously rises and extends from the intersection line.

[0051] Furthermore, a flange portion 250 extending radially outward is formed at the bottom of the movable guide column 200 , and the flange portion 250 is used to align with the matching port of the injector.

[0052] Furthermore, at the bottom of the movable guide column 200, a conical guide 260 is formed on the radial inner side of the outwardly extending flange portion 250 (refer to Figure 8 ), the conical guide 260 is aligned with the valve ball mounting port of the injector when the movable guide column 200 is in the second position, and the first opening 310 of the tunnel 300 is set at the center of the conical guide 260.

[0053] Furthermore, the movable guide column 200 is provided with a mounting hole 281 for receiving the stop rod 280 (refer to Figure 7 ), after the stop rod 280 is installed, the maximum stroke of the movable guide column 200 when moving between the first position and the second position can be limited.

[0054] Reference Figure 3 、 Figure 5 and Figure 6 As shown, the guide sleeve portion 400 includes a first guide sleeve 410, a second guide sleeve 420, and a third guide sleeve 430. The first guide sleeve 410 is sleeved on the outside of the movable guide post 200 and is provided with a waist-shaped groove 450 with a symmetrical structure and position. The second guide sleeve 420 is provided on the outside of the first guide sleeve 410 and closes the outer opening of the waist-shaped groove 450, so that the waist-shaped groove 450 forms the second valve ball transfer groove 411. On the second guide sleeve 420, a limiting groove 460 is provided on the opposite side of the second valve ball transfer groove 411. The limiting groove 460 is used to limit the travel of the stop rod 280, thereby further limiting the travel of the movable guide post 200.

[0055] The top of the second guide sleeve 420 includes a flange structure 421 with a reduced diameter, which is used to connect to the bottom of the fourth guide sleeve 440. The flange structure includes a holding chamber 470 within its circumference. This holding chamber 470 is used to temporarily store the valve ball 1001. When the movable guide post 200 is in the second position, the valve ball 1001 is rolled into the first valve ball transfer groove 210 via its internal inclined surface.

[0056] The third guide sleeve 430 is an annular closed structure, which can close the limit groove 460. The function of the third guide sleeve 430 is to seal the internal components of the guide sleeve part 400 as a whole, thereby playing a dust-proof role. At the same time, the third guide sleeve 430 can also play a protective role to prevent the moving parts from unexpected dangers.

[0057] The guide sleeve portion 400 further includes a fourth guide sleeve 440, which includes a flange 441 connected to the top flange 421 of the second guide sleeve 420. The guide groove 480 is disposed within the fourth guide sleeve 440. The bottom of the fourth guide sleeve 440 is connected to the valve ball retaining chamber 470. When the movable guide post 200 is in the second position, the valve ball 1001 enters the retaining chamber 470 through the guide groove 480. A flange with a reduced diameter is disposed at the top of the fourth guide sleeve 440, which communicates with the container 100 through the flange. The fourth guide sleeve 440 includes a first tapered guide surface 443 and a second tapered guide surface 444 disposed therein. The second tapered guide surface 444 is disposed in the recessed groove 445 of the first tapered guide surface 443. The opening at the top of the guide groove 480 is located at the lowest point of the second tapered guide surface 491.

[0058] Furthermore, the channel size formed by the guide groove 480 and the outer wall of the movable guide column 200 is only large enough for one valve ball 1001 to pass through. The holding bin 470 is arranged near the first valve ball transfer groove 210 for temporarily storing the valve ball.

[0059] The size is designed to allow only one valve ball 1001 to pass through, which can prevent installation errors caused by transporting multiple balls at the same time. The holding chamber 470 is used to temporarily store a single valve ball 1001 to ensure smooth flow of the single valve ball 1001 during transport.

[0060] Reference Figure 1 and Figure 2 The power unit 500 comprises a slide and a linear motor 510. The linear motor 510 drives the movable guide post 200 back and forth between a first position p1 and a second position p2. The slide provides a stable motion platform, while the linear motor 510 precisely controls the trajectory and speed of the movable guide post 200. The design of the power unit 500 ensures efficient and stable movement of the movable guide post 200, ensuring continuous and reliable transfer of the valve ball 1001.

[0061] Furthermore, in order to increase the return speed of the movable guide column 200 from the second position p2 to the first position p1, the power device 500 further includes an elastic return device 520. The elastic return device 520 of the present application is a spring 520 installed at the bottom of the movable guide column 200. Those skilled in the art will also know that the elastic return device 520 may also include a rubber return element, a gas spring, a bellows return device, a shape memory alloy (SMA) return device, a magnetic elastic return device, an air bag return device, or a liquid bag return device.

[0062] Reference Figures 6 to 8 As shown, for a clearer illustration, structures irrelevant to the transport process of the valve ball 1001 are omitted. Figure 6 The movable guide post 200 is in the second position P2. Figure 7 The figure shows the intermediate state of the process of resetting from the second position P2 to the first position p1. Figure 8 It is a schematic diagram showing the movable guide post 200 being completely restored to the first position.

[0063] The overall working process of the injector automatic valve ball installation device is as follows:

[0064] Valve ball storage and supply: the valve balls 1001 are first stored in the ball placement barrel 110 and are supplied one by one to the first valve ball transfer groove 210 of the movable guide column 200 through the guide groove 480.

[0065] The movable guide post 200 reciprocates and moves from the first position to the second position under the drive of the power device 500. At this time, the valve ball 1001 in the container 100 enters the first valve ball transfer groove 210, and the second opening 320 is connected to the second valve ball transfer groove 411.

[0066] During the transfer and installation of the valve ball, when the movable guide post 200 moves to the second position P2, the valve ball 1001 rolls through the tunnel 300 from the first opening 310 to the injector installation position. The power unit 500 then drives the movable guide post 200 back to the first position P1, completing the transfer and installation of the valve ball 1001. This process repeats itself over and over again, ensuring that the valve ball 1001 can be continuously and efficiently automatically installed in the injector.

[0067] For one reciprocating motion, the working process of the injector automatic valve ball installation device is as follows: Initially, the movable guide column 200 is in the first position P1 (such as Figure 2 or Figure 8As shown), in the initial position, the linear drive device 510 of the power device 500 does not slide. When the movable guide column 200 is in the first position P1, the first valve ball transfer groove 210 is connected to the second valve ball transfer groove 411, and the second opening 320 is closed by the guide sleeve 400, and the valve ball in the second valve ball transfer groove 411 cannot enter through the second opening 320. At the same time, the valve ball in the first valve ball transfer groove 210 (if there is a valve ball inside it in a non-initial state) enters the second valve ball transfer groove 411, and the valve ball is enclosed in the second valve ball transfer groove 411. At this time, the elastic reset device 520 is in a released or minimum compressed state. The retaining bin 470 at the bottom of the channel includes a valve ball 1001, and the valve ball is stuck in the retaining bin 470 and does not fall.

[0068] Furthermore, a plurality of valve balls are arranged one by one in sequence in the channel above the holding chamber 470 and gradually extend into the interior of the container 100 .

[0069] Furthermore, in the first position P1 , the movable guide column 200 is below the limiting groove 460 , and at this time, the elastic reset device 520 is at the bottom.

[0070] Subsequently, the driving device drives the container 100, the first guide sleeve 410, the second guide sleeve 420, the third guide sleeve 430, the fourth guide sleeve 440, and the movable guide post 200 downward as a whole until the travel of the stop rod 280 reaches the uppermost position of the limit slot 460. At this point, the movable guide post 200 is completely in the second position. The flange portion 250 at the bottom of the movable guide post 200 completely contacts the injector opening, and the tapered guide 260 at the bottom of the movable guide post 200 is completely accommodated within the injector opening.

[0071] In the second position, the elastic reset device 520 is in a maximum compression state, and its reset force also reaches a maximum state.

[0072] Furthermore, when in the second position P2 , the opening of the first valve ball transfer groove 210 is slightly lower than the cross-sectional opening of the holding bin 470 , so that the valve ball inside the holding bin 470 can enter the first valve ball transfer groove 210 .

[0073] Furthermore, the first inclined surface of the holding bin 470 enables the valve ball to roll from the holding bin 470 into the first valve ball transfer groove 210 .

[0074] Furthermore, at the second position P2, the second opening 320 of the tunnel 300 of the movable guide column 200 is completely connected with the second valve ball transfer groove 411, and the valve ball in the second valve ball transfer groove 411 rolls into the second opening 320 along the internal inclined surface thereof, thereby further entering the tunnel 300 and starting to fall in the direction in which the tunnel 300 extends.

[0075] In order to achieve the above-mentioned technical effects, it is necessary to configure the sizes and positions of the first valve ball transfer groove 210, the second valve ball transfer groove 411 and the second opening 320 so that when in the first position P1 or the second position P2, the first valve ball transfer groove 210 or the second opening 320 is mutually exclusively connected to the second valve ball transfer groove 411.

[0076] Reference Figure 7 During the return of the movable guide post 200 from the second position P2 to the first position P1, the valve ball 1001 falls to a position within the tunnel 300 near the first opening 310. In some embodiments, the valve ball may fall more quickly, completely entering the injector 600, or more slowly, remaining in the upper position as shown in the figure. However, the valve ball must be able to fully enter the injector while the movable guide post 200 remains in contact with the injector opening.

[0077] At the same time, during this resetting process, the guide sleeve portion 400 moves upward, and the valve ball 1001 in the first valve ball transfer groove 210 moves relatively downward until the movable guide column 200 is completely reset to the first position. The first valve ball transfer groove 210 is connected to the second valve ball transfer groove 411, and the valve ball inside it falls into the second valve ball transfer groove 411, completing the transfer of a single valve ball.

[0078] All components of this device are constructed from high-strength, wear-resistant materials to ensure resistance to damage even under high-frequency operation. Furthermore, all moving parts are precision-machined to ensure high precision and reliability. The optimized design of the guide sleeve 400 and the movable guide post 200 reduces friction and improves the device's operating efficiency.

[0079] The present invention's automatic valve ball installation device for fuel injectors is suitable for automated valve ball installation for various fuel injectors, particularly for fuel injector assembly processes on large-scale production lines. This device significantly improves valve ball installation efficiency and accuracy, reduces production costs, and improves product quality. It is widely applicable to industries requiring large-scale fuel injector production, such as automotive manufacturing and machining.

[0080] The automatic valve ball installation device for fuel injectors of the present invention has the following significant advantages:

[0081] 1. Improve installation efficiency. Through automated valve ball transportation and installation, production efficiency is greatly improved to meet the needs of mass production.

[0082] 2. Achieve standardized production. The device operates according to preset procedures and parameters, which is not affected by individual differences among operators, ensuring the consistency of installation quality and time.

[0083] 3. Stable production capacity: the device does not rely on the personal ability of the operator and can produce continuously and stably, ensuring the normal operation of the factory and the stability of production capacity.

[0084] 4. The unique ball conveying mechanism design uses a barrel-shaped ball storage bucket with a valve ball bucket cover to store a large number of valve balls at one time, reducing the need for frequent ball additions. Furthermore, the precise fit of the movable guide post and guide sleeve ensures that only one valve ball is transferred at a time, avoiding installation errors caused by multiple ball transfers.

[0085] 5. The device achieves a fully automated process from valve ball delivery, injector positioning to valve ball installation, significantly improving operational efficiency and device reliability. In addition, the use of an elastic reset structure ensures the stability and reliability of the device under different operating conditions.

[0086] In summary, the present invention's automatic injector valve ball installation device, through its innovative structural design and efficient operating principle, achieves automated, efficient, and precise installation of injector valve balls. This device not only addresses the low efficiency, difficulty in standardization, and unstable production capacity inherent in existing manual installation methods, but also significantly improves the overall performance and production capacity of injector production lines through numerous structural and functional innovations. The device's stability and reliability are effectively guaranteed, promising broad application prospects and significant market value.

Claims

1. An automatic valve ball installation device for a fuel injector, characterized in that: include: a container for holding the valve ball; A movable guide post, wherein the movable guide post is provided with a first valve ball transfer groove, wherein a tunnel is provided inside the movable guide post for the valve ball to roll therein, wherein a first opening of the tunnel is provided at the end of the movable guide post, and a second opening is provided on the side wall of the movable guide post; A guide sleeve portion surrounding the movable guide column, wherein the guide sleeve portion is provided with a second valve ball transfer groove; a power device for driving the movable guide post to reciprocate between a first position and a second position; In which, when the movable guide column is in the first position, the first valve ball transfer groove is connected to the second valve ball transfer groove, and the second opening is closed by the guide sleeve; when the movable guide column is in the second position, the first valve ball transfer groove is connected to the container, and the second opening is connected to the second valve ball transfer groove.

2. The automatic valve ball installation device for fuel injector according to claim 1, characterized in that: The sizes of the first valve ball transfer groove, the second valve ball transfer groove and the second opening are configured such that in the first position or the second position, the first valve ball transfer groove or the second opening is mutually exclusively connected to the second valve ball transfer groove.

3. The automatic valve ball installation device for fuel injector according to claim 2, characterized in that: When the movable guide column is in the first position, the valve ball in the first valve ball transfer groove enters the second valve ball transfer groove; when the movable guide column is in the second position, the valve ball in the container enters the first valve ball transfer groove, and the valve ball in the second valve ball transfer groove enters the tunnel through the second opening.

4. The automatic valve ball installation device for fuel injector according to claim 3, characterized in that: When the movable guide column is at the second position, the valve ball in the second valve ball transfer groove enters the second opening and rolls from the first opening to the installation position of the injector through the tunnel.

5. The automatic valve ball installation device for fuel injector according to claim 4, characterized in that: The guide sleeve includes a guide groove connected to the container. The channel formed by the guide groove and the outer wall of the movable guide column is only for one valve ball to pass through. A holding bin is formed in the channel near the first valve ball transfer groove for temporarily storing the valve ball.

6. The automatic valve ball installation device for fuel injector according to claim 5, characterized in that: The guide sleeve includes a first guide sleeve, a second guide sleeve and a third guide sleeve. The first guide sleeve is arranged on the outside of the movable guide column, and the first guide sleeve is provided with a waist-shaped groove; the second guide sleeve is arranged on the outside of the first guide sleeve and closes the outer opening of the waist-shaped groove, so that the waist-shaped groove forms the second valve ball transfer groove.

7. The automatic valve ball installation device for fuel injector according to claim 6, characterized in that: The second guide sleeve is provided with a limiting groove, and the movable guide column is provided with a limiting rod, and the limiting rod moves only within the stroke range defined by the limiting groove.

8. The automatic valve ball installation device for fuel injector according to claim 6, characterized in that: The guide sleeve also includes a fourth guide sleeve, the channel is arranged in the fourth guide sleeve, the fourth guide sleeve is connected to the container, the fourth guide sleeve includes a first conical guide surface and a second conical guide surface arranged inside the fourth guide sleeve, and the second conical guide surface is arranged in the sinking groove of the first conical guide surface.

9. The automatic valve ball installation device for fuel injector according to claim 8, characterized in that: An inclined guide surface is provided on the top of the movable guide post so that when the valve ball on the top of the movable guide post rolls into the sinking groove.

10. The automatic valve ball installation device for fuel injector according to claim 6, characterized in that: The holding bin has a first inclined surface, which enables the valve ball to roll from the holding bin into the first valve ball transfer groove.

Images