Vacuum breaking device and feeding mechanism

Abstract

The invention discloses a vacuum breaking device and a feeding mechanism, and relates to the technical field of inductor manufacturing equipment, and the vacuum breaking device comprises a vacuum seat, a guide rod, a first connecting nozzle and a second connecting nozzle. The vacuum seat is provided with a through hole and a mounting hole which are communicated. The guide rod is movably arranged in the through hole in a penetrating mode and provided with a negative pressure channel and a negative pressure inlet which are communicated, and the negative pressure inlet can be communicated with the mounting hole. The first connecting nozzle is detachably mounted in the mounting hole and used for being connected with a vacuum source. The second connecting nozzle is detachably installed on the guide rod, communicates with the negative pressure channel and is used for being connected with the suction nozzle. When the guide rod moves along the through hole until the negative pressure inlet is communicated with the mounting hole, negative pressure provided by the vacuum source can be communicated to the suction nozzle through the first connecting nozzle, the mounting hole, the negative pressure inlet, the negative pressure channel and the second connecting nozzle, so that the adsorption function of the vacuum breaking device is achieved. According to the vacuum breaking device and the feeding mechanism, the problem that an internal channel is difficult to clean after being blocked can be solved, and the production cost is reduced.

Description

Technical Field

[0001] This application relates to the field of inductor manufacturing equipment technology, specifically to a vacuum breaking device and a feeding mechanism. Background Technology

[0002] In inductor manufacturing, the hot-pressing process is a crucial step in forming a complete inductor. This requires a loading mechanism to precisely transfer the magnetic core assembly with its coil into the mold. Existing loading mechanisms typically include a suction nozzle, a vacuum breaking device, and a vacuum source. The vacuum source, via the vacuum breaking device, provides negative pressure to the suction nozzle to attract the magnetic core assembly. Once the magnetic core assembly has been transferred to the designated position in the mold, the vacuum breaking device cuts off the negative pressure, releasing the magnetic core assembly.

[0003] However, after prolonged use, the internal channels of existing vacuum breaking devices are prone to blockage due to the accumulation of magnetic powder or debris, leading to the failure of negative pressure transmission and affecting the normal operation of the feeding mechanism. Due to structural limitations of existing devices, blockages are difficult to clean and require complete replacement, resulting in high production costs.

[0004] Therefore, there is an urgent need for a vacuum breaking device and a feeding mechanism to solve the problems existing in the above-mentioned prior art. Summary of the Invention

[0005] The purpose of this application is to provide a vacuum breaking device and a feeding mechanism that can solve the problem of difficulty in cleaning the internal channels after they are blocked, thereby reducing production costs.

[0006] In a first aspect, embodiments of this application provide a vacuum breaking device, which includes a vacuum base, a guide rod, a first connecting nozzle, and a second connecting nozzle. The vacuum base has a through hole and a mounting hole that are connected. The guide rod is movably inserted through the through hole and has a negative pressure channel and a negative pressure inlet that are connected, with the negative pressure inlet communicating with the mounting hole. The first connecting nozzle is detachably installed in the mounting hole for connecting a vacuum source. The second connecting nozzle is detachably installed at the end of the guide rod and communicates with the negative pressure channel for connecting a suction nozzle. When the guide rod moves along the through hole until the negative pressure inlet communicates with the mounting hole, the negative pressure provided by the vacuum source can communicate with the suction nozzle through the first connecting nozzle, the mounting hole, the negative pressure inlet, the negative pressure channel, and the second connecting nozzle to achieve the adsorption function of the vacuum breaking device.

[0007] The vacuum base, guide rod, first connecting nozzle, and second connecting nozzle are all assembled into a single, detachable unit. This allows for the separation of each component while ensuring the vacuum breaking device functions properly, facilitating internal cleaning and unclogging. Therefore, when the vacuum breaking device becomes clogged, it can be restored to normal operation simply by disassembling, unclogging, and reassembling. This effectively solves the problem of traditional vacuum breaking devices being difficult to clean after clogging and requiring complete replacement, thus reducing replacement costs.

[0008] In some examples, the first end of the guide rod is provided with a limiting part, and the second end of the guide rod is provided with a detachable stop. The vacuum seat is located between the limiting part and the stop. When the guide rod moves in a first direction, the limiting part can abut against the first end face of the vacuum seat. When the guide rod moves in a second direction opposite to the first direction, the stop can abut against the second end face of the vacuum seat.

[0009] With the combined effect of the limiting part and the stop, the axial movement range of the guide rod is limited from both ends, ensuring stable guidance during operation. Meanwhile, the stop is detachably installed at the second end of the guide rod, facilitating cleaning and maintenance. The guide rod can be removed from the vacuum seat simply by removing the stop, effectively simplifying disassembly and assembly, eliminating the need to replace the entire vacuum breaking device, and reducing costs.

[0010] In some examples, the limiting part includes a limiting flange disposed on the peripheral sidewall of the guide rod, the outer diameter of which is larger than the diameter of the through hole. The peripheral sidewall of the second end of the guide rod is provided with an annular groove, and a stop member is engaged in the annular groove, the outer diameter of which is larger than the diameter of the through hole.

[0011] By setting a limiting flange at the first end of the guide rod and a detachable stop at the second end of the guide rod, the axial movement range of the guide rod is limited. When the guide rod needs to be removed for cleaning and maintenance, only the stop needs to be removed to remove the guide rod from the vacuum seat. This is convenient and quick, which helps to improve the efficiency of cleaning and maintenance, thereby further reducing maintenance costs.

[0012] In some examples, the limiting part also includes a limiting hole, and the first end of the vacuum seat is provided with a positioning part, which cooperates with the limiting hole to limit the circumferential rotation of the guide rod.

[0013] The cooperation between the limiting hole and the positioning part can eliminate the circumferential rotation that may occur during the movement of the guide rod, ensuring that the negative pressure inlet and the mounting hole can be accurately connected, thereby improving the reliability of the vacuum breaking device when adsorbing materials and ensuring the stable operation of the vacuum breaking device.

[0014] In some examples, the positioning part includes a positioning hole and a positioning pin installed in the positioning hole, the positioning pin engaging with the limiting hole.

[0015] The positioning section is configured with positioning holes and positioning pins. This facilitates machining and assembly, and avoids the structural instability of directly mounting a column-like structure on the vacuum seat. Furthermore, the length of the positioning pin can accommodate the axial movement of the guide rod, ensuring that the positioning pin always engages with the limiting hole to limit the movement of the guide rod along its axis, effectively improving the accuracy of the connection between the negative pressure inlet and the mounting hole.

[0016] In some examples, threaded connections are used between the first connecting nozzle and the mounting hole, and between the second connecting nozzle and the guide rod.

[0017] Threaded connections offer higher stability and sealing, which improves the operational stability of the vacuum breaking device. Furthermore, while ensuring the detachability of both the first and second connecting nozzles, threaded connections significantly improve assembly and disassembly efficiency, simplifying cleaning and maintenance of the vacuum breaking device and reducing costs.

[0018] In some examples, the guide rod also has a positive pressure channel and a positive pressure inlet, which are independent of the negative pressure channel. The positive pressure inlet is connected to the positive pressure channel, and the positive pressure inlet and the negative pressure inlet are spaced apart along the axial direction of the guide rod. When the guide rod moves along the through hole to the point where the positive pressure inlet connects with the mounting hole, the negative pressure is eliminated, thus realizing the release function of the vacuum breaking device.

[0019] The positive pressure channel and positive pressure inlet can be connected to the mounting hole during the release process of the vacuum breaking device. On the one hand, this can block the vacuum source from continuing to provide negative pressure to the negative pressure channel, and on the other hand, it can eliminate the residual negative pressure in the vacuum breaking device to cut off the adsorption effect on the material.

[0020] In some examples, an elastic element is also included, which is sleeved on the guide rod and abuts against the second end face of the stop and the vacuum seat.

[0021] The elastic element provides elastic force to the guide rod, allowing it to move under the action of the elastic force. The elastic force, combined with the driving force on the guide rod, enables the guide rod to reciprocate within the through hole. This eliminates the need for an additional device that drives in the opposite direction to the driver, and also eliminates the need to directly connect the guide rod to the driver. This simplifies the assembly process, facilitates the disassembly, cleaning, and maintenance of the vacuum breaking device, and also helps reduce production costs.

[0022] In some examples, a sealing structure is provided between the guide rod and the through hole, and / or between the first connecting nozzle and the mounting hole, and / or between the second connecting nozzle and the guide rod.

[0023] The sealing structure can effectively improve the airtightness between the guide rod and the through hole, between the first connecting nozzle and the mounting hole, and between the second connecting nozzle and the guide rod of the vacuum breaking device. This helps to reduce the risk of pressure leakage during the operation of the vacuum breaking device and enables the vacuum breaking device to maintain a stable vacuum adsorption function.

[0024] Secondly, embodiments of this application also provide a feeding mechanism, including a vacuum source, a suction nozzle, a driver, and the aforementioned vacuum breaking device. A first connecting nozzle is connected to the vacuum source, a second connecting nozzle is connected to the suction nozzle, and the driver is used to drive the guide rod to move.

[0025] The beneficial effects of the feeding mechanism provided in the second aspect and the various possible designs of the second aspect can be found in the first aspect and the various possible implementations of the first aspect, and will not be repeated here. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 The diagram shows the overall structure of the vacuum breaking device and a partial diagram of the feeding mechanism provided in the embodiments of this application.

[0028] Figure 2 An exploded view of the vacuum breaking device provided in the embodiments of this application.

[0029] Figure 3 This is a cross-sectional view of the vacuum breaking device provided in the embodiment of this application in the adsorption state.

[0030] Figure 4 A cross-sectional view of the vacuum breaking device provided in the embodiment of this application in the release state.

[0031] Explanation of reference numerals in the attached drawings: 100, feeding mechanism; 101, vacuum source; 102, suction nozzle; 103, driver; 104, vacuum breaking device; 1, vacuum seat; 11, through hole; 12, mounting hole; 13, positioning part; 131, positioning hole; 132, positioning pin; 14, annular boss; 2, guide rod; 21, negative pressure channel; 22, negative pressure inlet; 23, limiting part; 231, limiting flange; 232, limiting hole; 24, stop; 25, annular groove; 26, positive pressure channel; 27, positive pressure inlet; 3, first connecting nozzle; 4, second connecting nozzle; 5, elastic element. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0033] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0034] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0035] In the description of this application, it should be noted that the terms "inner" and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing this application and for 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 application. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0036] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "setup" and "connection" 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 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 according to the specific circumstances.

[0037] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.

[0038] Figure 1 This is a partial schematic diagram of the feeding mechanism. (Refer to...) Figure 1 This embodiment provides a feeding mechanism 100, including a vacuum source 101, a suction nozzle 102, a driver 103, and a vacuum breaking device 104. The first connecting nozzle 3 of the vacuum breaking device 104 is connected to the vacuum source 101, and the second connecting nozzle 4 of the vacuum breaking device 104 is connected to the suction nozzle 102. The driver 103 is used to drive the guide rod 2 of the vacuum breaking device 104 to move. The specific structure of the vacuum breaking device 104 will be described in detail later and will not be elaborated here.

[0039] Vacuum source 101 is used to provide negative pressure. Vacuum source 101 is usually connected to the first connecting nozzle 3 via a hose. The negative pressure provided by vacuum source 101 can be connected to the first connecting nozzle 3 via the hose.

[0040] The suction nozzle 102 is used to adsorb materials, which may be magnetic core components in the inductor manufacturing process mentioned in this application, or other similar components. The suction nozzle 102 is typically connected to the second connecting nozzle 4 via a flexible tube. The negative pressure provided by the vacuum source 101 can be connected to the suction nozzle 102 via the guide rod 2 and the second connecting nozzle 4 to adsorb materials through the suction nozzle 102.

[0041] The actuator 103 drives the guide rod 2 to move, enabling it to reach a position where it can perform the adsorption function. The actuator 103 and the guide rod 2 can be two independent structural components; for example, the actuator 103 can be a servo push rod located near the end of the guide rod 2. When the guide rod 2 needs to move, the actuator 103 can push it forward. Alternatively, the actuator 103 and the guide rod 2 can be fixedly connected; for example, the actuator 103 can be a servo motor connected to the end of the guide rod 2.

[0042] The vacuum breaking device 104 provided in this application embodiment can utilize the detachable feature of each component to promptly clear the internal blockage of the vacuum breaking device 104, reducing the possibility that the feeding mechanism 100 cannot be used normally due to blockage of the vacuum breaking device 104. Compared with the traditional approach where the entire vacuum breaking device 104 must be replaced after blockage, this embodiment can effectively reduce production costs.

[0043] Reference Figures 1 to 3 This embodiment provides a vacuum breaking device 104, which includes a vacuum base 1, a guide rod 2, a first connecting nozzle 3, and a second connecting nozzle 4. The vacuum base 1 has a through hole 11 and a mounting hole 12 that are connected. The guide rod 2 is movably inserted through the through hole 11 and has a negative pressure channel 21 and a negative pressure inlet 22 that are connected. The negative pressure inlet 22 can communicate with the mounting hole 12. The first connecting nozzle 3 is detachably installed in the mounting hole 12 and is used to connect to a vacuum source 101. The second connecting nozzle 4 is detachably installed at the end of the guide rod 2 and communicates with the negative pressure channel 21, and is used to connect to a suction nozzle 102.

[0044] When the guide rod 2 moves along the through hole 11 to the negative pressure inlet 22 and the mounting hole 12, the negative pressure provided by the vacuum source 101 can be connected to the suction nozzle 102 through the first connecting nozzle 3, the mounting hole 12, the negative pressure inlet 22, the negative pressure channel 21 and the second connecting nozzle 4 to realize the adsorption function of the vacuum breaking device 104.

[0045] The vacuum seat 1, guide rod 2, first connecting nozzle 3, and second connecting nozzle 4 are all assembled into a single, detachable unit. This allows for the separation of each component for easy cleaning, while ensuring the normal operation of the vacuum breaking device 104. Therefore, when the vacuum breaking device 104 becomes clogged, it can be restored to normal operation simply by disassembling, clearing, and reassembling. This effectively solves the problem of traditional vacuum breaking devices 104 being difficult to clean after clogging and requiring complete replacement, thus reducing the replacement cost of the vacuum breaking device 104.

[0046] Reference Figure 1 and Figure 2 The vacuum seat 1 serves as the supporting body for the vacuum breaking device 104. The guide rod 2 and the second connecting nozzle 4 are both mounted on the vacuum seat 1. The vacuum seat 1 is also used for mounting the vacuum breaking device 104 within the feeding mechanism 100. In this embodiment, the vacuum seat 1 has a cylindrical structure, with a through hole 11 located on the axis of the vacuum seat 1 and penetrating through it. A mounting hole 12 is located on the side wall of the vacuum seat 1, and the mounting hole 12 communicates with the through hole 11.

[0047] Reference Figure 2 The guide rod 2 is installed in the through hole 11 and can move along the through hole 11, with both ends of the guide rod 2 outside the through hole 11. The guide rod 2 is provided with a negative pressure channel 21 and a negative pressure inlet 22. The negative pressure channel 21 is opened inside the guide rod 2, and the axis of the negative pressure channel 21 coincides with the axis of the guide rod 2. The end of the negative pressure channel 21 extends to the end face of the first end of the guide rod 2.

[0048] The negative pressure inlet 22 is located on the side wall of the guide rod 2. The negative pressure inlet 22 is connected to the negative pressure channel 21, and the negative pressure inlet 22 can connect with the mounting hole 12 during the movement of the guide rod 2. Specifically, when it is necessary to adsorb material, the guide rod 2 can be moved until the negative pressure inlet 22 is connected to the mounting hole 12. At this time, the first connecting nozzle 3, the mounting hole 12, the negative pressure inlet 22, the negative pressure channel 21, and the second connecting nozzle 4 form a complete negative pressure path. The negative pressure provided by the vacuum source 101 can be conducted to the suction nozzle 102 through this negative pressure path, and act on the material through the suction nozzle 102 to achieve the adsorption of the material.

[0049] When releasing the material, the guide rod 2 moves until the negative pressure inlet 22 is completely misaligned with the mounting hole 12. At this time, the negative pressure provided by the vacuum source 101 cannot enter the negative pressure inlet 22 and the negative pressure channel 21, thereby releasing the adsorption effect on the material and completing the release of the material.

[0050] Reference Figure 1One end of the first connecting nozzle 3 is connected to the vacuum source 101, and the other end is detachably installed in the mounting hole 12. This allows the first connecting nozzle 3 to be removed and cleared when impurities are adsorbed and clogged. The specific connection method of the first connecting nozzle 3 in the mounting hole 12 can be a threaded connection, a magnetic connection, or a snap-fit ​​connection. All of these connection methods enable detachable connection and are simple and efficient to install and remove, solving the problem of easy clogging and inability to clear blockages at the first connecting nozzle 3 in traditional vacuum breaking devices 104, and avoiding increased costs due to complete replacement.

[0051] Similarly, the first end of the second connecting nozzle 4 is connected to the suction nozzle 102, and the other end is detachably installed at the end of the guide rod 2. In this way, when impurities are adsorbed and clog the second connecting nozzle 4 and the negative pressure channel 21, the second connecting nozzle 4 can be removed and cleared. The specific connection form of the second connecting nozzle 4 at the end of the guide rod 2 can also be a threaded connection, magnetic connection, or snap-fit ​​connection, etc., which has the same technical effect as described above, and will not be elaborated here.

[0052] Reference Figure 2 and Figure 3 In some examples, the first end of the guide rod 2 is provided with a limiting part 23, and the second end of the guide rod 2 is provided with a detachable stop 24. The vacuum seat 1 is located between the limiting part 23 and the stop 24. When the guide rod 2 moves in the first direction, the limiting part 23 can abut against the first end face of the vacuum seat 1. When the guide rod 2 moves in the second direction opposite to the first direction, the stop 24 can abut against the second end face of the vacuum seat 1.

[0053] With the coordinated design of the limiting part 23 and the stop 24, the axial movement range of the guide rod 2 can be limited from both ends, ensuring stable guidance of the guide rod 2 during operation. At the same time, the stop 24 is detachably installed at the second end of the guide rod 2, which facilitates cleaning and maintenance. The guide rod 2 can be removed from the vacuum seat 1 simply by removing the stop 24, which effectively simplifies the disassembly and assembly process and eliminates the need to replace the entire vacuum breaking device 104, thus reducing costs.

[0054] The first direction is Figure 3 The first direction is from bottom to top, and the second direction is from top to bottom.

[0055] When the guide rod 2 moves in the first direction, the limiting part 23 abuts against the first end face of the vacuum seat 1, that is, abuts against... Figure 3 The lower end face of the vacuum seat 1, as shown Figure 3 As shown.

[0056] When the guide rod 2 moves in the second direction, the stop 24 can abut against the second end face of the vacuum seat 1, that is, abut against... Figure 3 The upper end face of the vacuum seat 1.

[0057] The engagement of the limiting part 23 with the lower end face of the vacuum seat 1 and the engagement of the stop part 24 with the upper end face of the vacuum seat 1 limit the range of axial movement of the guide rod 2 in the through hole 11.

[0058] exist Figure 3 In this configuration, the first end of the guide rod 2 is located below the first end of the vacuum seat 1, and the limiting part 23 can cooperate with the end face of the first end of the vacuum seat 1 to restrict the first end of the guide rod 2 from moving into the through hole 11. The second end of the guide rod 2 extends above the vacuum seat 1, and the guide rod 2 can be inserted into the through hole 11 from below the vacuum seat 1 to achieve the cooperation between the guide rod 2 and the through hole 11.

[0059] In an alternative embodiment, the limiting part 23 can be provided at the second end of the guide rod 2, and the detachable stop 24 can be provided at the first end of the guide rod 2, which can also have the same technical effect as the aforementioned embodiment.

[0060] In another alternative embodiment, the guide rod 2 can be provided with detachable stop members at both ends. When it is necessary to unclog the guide rod 2, only one stop member can be removed, or both stop members can be removed at the same time. Both methods can remove the guide rod 2 from the vacuum seat 1 for unblocking.

[0061] Alternatively, when the guide rod 2 is directly connected to the driver 103, the movement range of the guide rod 2 can be limited directly by the fixed stroke set by the driver 103, without the need to set a limit part or stop. When it is necessary to clear the blockage, the driver 103 and the guide rod 2 can be separated to remove the guide rod 2 from the vacuum seat 1 for clearing.

[0062] In addition, the stop 24 can take the form of a snap ring, a threaded limit sleeve, or other similar forms. This type of stop can be assembled and separated from the guide rod 2 with a simple disassembly and assembly method, making it easy to remove the guide rod 2 from the vacuum seat 1.

[0063] Reference Figure 2 and Figure 3 In some examples, the limiting part 23 includes a limiting flange 231 disposed on the peripheral sidewall of the guide rod 2, the outer diameter of the limiting flange 231 being larger than the diameter of the through hole 11. The peripheral sidewall of the second end of the guide rod 2 is provided with an annular groove 25, and a stop member 24 is engaged in the annular groove 25, the outer diameter of the stop member 24 being larger than the diameter of the through hole 11.

[0064] By setting a limiting flange at the first end of the guide rod 2 and a detachable stop 24 at the second end of the guide rod 2, the axial movement range of the guide rod 2 is limited. When the guide rod 2 needs to be removed for cleaning and maintenance, only the stop 24 needs to be removed to remove the guide rod 2 from the vacuum seat 1. This is convenient and quick, which helps to improve the efficiency of cleaning and maintenance and further reduce maintenance costs.

[0065] The limiting flange 231 is usually integrally set at the first end of the guide rod 2. This not only provides a limiting function but also has high structural strength, which can reduce the possibility of limiting failure due to axial impact.

[0066] The design of the annular groove 25 facilitates the positioning and installation of the stop 24 at the second end of the guide rod 2, which can reduce the possibility of the stop 24 shifting along the axial direction of the guide rod 2. In this way, together with the limiting flange 231, the movement range of the guide rod 2 can be accurately limited, improving the accuracy of the vacuum breaking device 104 and making the vacuum breaking device 104 have high reliability.

[0067] In this embodiment, refer to Figure 2 and Figure 3 The outer diameter of the limiting flange 231 is larger than the inner diameter of the through hole 11. The design of the limiting flange 231 can significantly increase the contact area with the vacuum seat 1, which is beneficial to improving the structural strength and the stability of the limiting fit between the limiting flange 231 and the vacuum seat 1.

[0068] In addition, this embodiment uses a retaining ring as a stop member 24. The retaining ring can be sleeved in the annular retaining groove 25. The outer diameter of the retaining ring is greater than the depth of the annular retaining groove 25 and greater than the diameter of the through hole 11. During the movement of the guide rod 2, the retaining ring can abut against the second end of the vacuum seat 1 to provide a limiting function opposite to that of the limiting flange 231.

[0069] Using a retaining ring can meet the strength required for limiting while facilitating disassembly and assembly. When it is necessary to clean and maintain the vacuum breaking device 104, the guide rod 2 can be pulled out from the through hole 11 after removing the retaining ring, which helps to improve the efficiency of cleaning and maintenance and reduce maintenance costs.

[0070] In another alternative embodiment, the limiting part 23 and the stop 24 can be designed to have shapes that are significantly different from those of the through hole 11. For example, the limiting part 23 can be a rectangular shoulder provided on the peripheral sidewall of the first end of the guide rod 2, while the through hole 11 is a cylindrical hole. In this way, the rectangular shoulder can restrict the movement of the guide rod.

[0071] Reference Figure 2 and Figure 3 In some examples, the limiting part 23 also includes a limiting hole 232, and the first end of the vacuum seat 1 is provided with a positioning part 13, which cooperates with the limiting hole 232 to limit the circumferential rotation of the guide rod 2.

[0072] The cooperation between the limiting hole 232 and the positioning part 13 can eliminate the circumferential rotation that may occur during the movement of the guide rod 2, ensuring that the negative pressure inlet 22 and the mounting hole 12 can be accurately connected, thereby improving the reliability of the vacuum breaking device 104 when adsorbing materials and ensuring the stable operation of the vacuum breaking device 104.

[0073] Reference Figure 2 and Figure 3 The guide rod 2 is usually set as a cylindrical structure. The cylindrical guide rod 2 is prone to circumferential rotation during movement, which can further cause the negative pressure inlet 22 to shift or even completely misalign with the mounting hole 12, affecting the normal operation of the adsorption function.

[0074] Based on this, by opening a limiting hole 232 on the limiting flange 231 and setting a positioning part 13 on the end face of the first end of the vacuum seat 1, the positioning part 13 and the limiting hole 232 are engaged with each other to achieve the function of circumferential positioning of the limiting flange 231, thereby restricting the guide rod 2 from circumferentially rotating in the through hole 11, so that the negative pressure inlet 22 and the mounting hole 12 are always kept on the same axis, ensuring that the two can be connected accordingly.

[0075] In one alternative embodiment, the guide rod 2 can be designed as a prism, and the through hole 11 can be designed as a hole corresponding to the shape of the prism. In this way, the structural characteristics of the guide rod 2 and the through hole 11 can restrict the circumferential rotation of the guide rod 2.

[0076] In another alternative embodiment, multiple limiting holes 232 and multiple positioning parts 13 can be provided, with multiple limiting holes 232 and multiple positioning parts 13 being provided in a one-to-one correspondence. This can reduce the risk of decreased positioning accuracy due to wear between a single positioning hole 131 and the positioning part 13.

[0077] Reference Figure 2 and Figure 3 In some examples, the positioning part 13 includes a positioning hole 131 and a positioning pin 132 installed in the positioning hole 131, the positioning pin 132 being engaged with the limiting hole 232.

[0078] The positioning part 13 is configured with a positioning hole 131 and a positioning pin 132. On the one hand, this facilitates processing and assembly, and avoids the instability of a structure that would exist if a column-like structure were directly integrally set on the vacuum seat 1. On the other hand, the length of the positioning pin 132 can be matched with the axial movement of the guide rod 2, so that the positioning pin 132 can always cooperate with the limiting hole 232 to limit the movement of the guide rod 2 along the axial direction, effectively improving the accuracy of the connection between the negative pressure inlet 22 and the mounting hole 12.

[0079] Specifically, refer to Figures 1 to 3A positioning hole 131 is formed on the end face of the first end of the vacuum seat 1. A positioning pin 132 can be inserted into the positioning hole 131, and the axis of the positioning pin 132 is parallel to the axis of the guide rod 2. The axis of the limiting hole 232 is on the same straight line as the axis of the positioning hole 131. In this way, the positioning pin 132 can be inserted into both the positioning hole 131 and the limiting hole 232 at the same time to fix the relative position of the limiting hole 232 and the positioning hole 131, thereby preventing the guide rod 2 from rotating circumferentially.

[0080] In this embodiment, the limiting hole 232 is opened on the edge of the limiting flange 231, and is specifically manifested as a limiting notch on the limiting flange 231. This design facilitates the snap-fit ​​connection between the positioning pin 132 and the limiting hole 232, which can improve the efficiency of disassembly and assembly.

[0081] The length of the positioning pin 132 can be greater than or equal to the distance that the guide rod 2 can move in the through hole 11. In this way, the guide rod 2 always maintains a circumferential limiting fit with the positioning pin 132 during axial movement, thereby ensuring that the guide rod 2 will not rotate circumferentially. The negative pressure inlet 22 is always on the same axis as the mounting hole 12, thereby ensuring the reliable operation of the vacuum breaking device 104.

[0082] In an optional embodiment, the positioning part 13 can be a limiting post disposed on the first end face of the vacuum seat 1, or it can be a structure such as an elastic snap-fit ​​piece. The limiting post or the elastic snap-fit ​​piece can be inserted into the limiting hole 232, and both can play the role of limiting circumferential rotation.

[0083] In some examples, the first connecting nozzle 3 and the mounting hole 12, as well as the second connecting nozzle 4 and the guide rod 2, are connected by threads.

[0084] Threaded connections offer higher stability and sealing, which improves the operational stability of the vacuum breaking device 104. Furthermore, while ensuring the detachability of the first connecting nozzle 3 and the second connecting nozzle 4, threaded connections significantly improve assembly and disassembly efficiency, simplifying cleaning and maintenance of the vacuum breaking device 104 and reducing costs.

[0085] Furthermore, the first connecting nozzle 3 and the mounting hole 12 can be fitted with a fine-pitch thread. The thread profile has been specially optimized, adopting a 30° trapezoidal thread profile, which achieves excellent sealing performance while ensuring connection strength. The thread used to achieve the threaded connection between the second connecting nozzle 4 and the guide rod 2 can have the same thread characteristics as the above-mentioned thread, and have the same technical effect.

[0086] In an optional embodiment, the first connecting nozzle 3 and the mounting hole 12 can also be connected by magnetic attraction or snap-fit. For example, a ring-shaped magnetic attractor can be provided in the mounting hole 12, and a magnet can be provided on the first connecting nozzle 3. When removing the nozzle, simply pull out the first connecting nozzle 3. After cleaning the first connecting nozzle 3, simply bring the first connecting nozzle 3 close to the mounting hole 12 to achieve magnetic fixation. Similarly, the second connecting nozzle 4 and the guide rod 2 can also be fixed by magnetic attraction or snap-fit.

[0087] Reference Figure 3 and Figure 4 In some examples, the guide rod 2 is also provided with a positive pressure channel 26 and a positive pressure inlet 27 that are independent of the negative pressure channel 21. The positive pressure inlet 27 is connected to the positive pressure channel 26, and the positive pressure inlet 27 and the negative pressure inlet 22 are spaced apart along the axial direction of the guide rod 2.

[0088] The positive pressure channel 26 and the positive pressure inlet 27 are connected to the mounting hole 12 during the release process of the vacuum breaking device 104. On the one hand, this blocks the vacuum source 101 from continuing to provide negative pressure to the negative pressure channel 21, and on the other hand, it eliminates the residual negative pressure in the vacuum breaking device 104 to cut off the adsorption effect on the material.

[0089] Specifically, the negative pressure channel 21 and the positive pressure channel 26 are independent of each other but are both located on the axis of the guide rod 2. The negative pressure channel 21 is connected from the middle of the guide rod 2 to the first end of the guide rod 2 and is connected to the second connecting nozzle 4. The positive pressure channel 26 is connected from the middle of the guide rod 2 to the second end of the guide rod 2 and is connected to the external environment. The two are spaced apart in the middle of the guide rod 2.

[0090] Figure 3 This is a cross-sectional view of the guide rod 2 moving to the position where it communicates with the negative pressure inlet 22 and the mounting hole 12. Figure 4 This is a cross-sectional view showing the guide rod 2 moving to the position where it communicates with the positive pressure inlet 27 and the mounting hole 12. (Refer to...) Figure 3 and Figure 4 Negative pressure inlet 22 is connected to negative pressure channel 21, and positive pressure inlet 27 is connected to positive pressure channel 26. Negative pressure inlet 22 and positive pressure inlet 27 are spaced apart at the middle position of guide rod 2, and negative pressure inlet 22 and positive pressure inlet 27 are on the same axis, with negative pressure inlet 22 located below positive pressure inlet 27.

[0091] Reference Figure 3 When the guide rod 2 moves to the point where the negative pressure inlet 22 is connected to the mounting hole 12, the positive pressure inlet 27 is located in the position where it is closed by the hole wall of the through hole 11. The negative pressure provided by the vacuum source 101 can be conducted to the suction nozzle through the second connecting nozzle 4, the mounting hole 12, the negative pressure inlet 22, the negative pressure channel 21 and the first connecting nozzle 3 to achieve the adsorption function.

[0092] Reference Figure 4 When the guide rod 2 moves to the point where the positive pressure inlet 27 is connected to the mounting hole 12, the negative pressure inlet 22 is located in a position where it is closed by the hole wall of the through hole 11. The negative pressure provided by the vacuum source 101 is blocked, thereby stopping the adsorption and releasing the material.

[0093] In one embodiment, the distance between the positive pressure inlet 27 and the negative pressure inlet 22 is smaller than the diameter of the mounting hole 12. During the process of switching between the positive pressure inlet 27 and the negative pressure inlet 22 and the mounting hole 12, the positive pressure inlet 27 and the negative pressure inlet 22 can be briefly connected at the mounting hole 12 to eliminate the residual negative pressure in the negative pressure channel 21. This helps to further accelerate the cessation of the adsorption operation and achieve the effect of rapid material release. It effectively improves the working accuracy and efficiency of the vacuum breaking device 104 and the feeding mechanism 100, and has the characteristics of simple structure and low production and processing cost.

[0094] Reference Figures 1 to 4 In some examples, an elastic element 5 is also included, which is sleeved on the guide rod 2 and abuts against the second end face of the stop 24 and the vacuum seat 1.

[0095] The elastic element 5 provides elasticity to the guide rod 2, allowing it to move under the action of elastic force. The elastic force, in conjunction with the driving force on the guide rod 2, enables the guide rod 2 to reciprocate within the through hole 11. This eliminates the need for an additional device that drives in the opposite direction to the driver 103, and also eliminates the need to directly connect the guide rod 2 to the driver 103. This simplifies the assembly process, facilitates the disassembly, cleaning, and maintenance of the vacuum breaking device 104, and also helps reduce production costs.

[0096] Specifically, refer to Figures 1 to 4 In this embodiment, a spring is used as the elastic element 5. The first end of the elastic element 5 abuts against the side of the retaining ring facing the vacuum seat 1, and the second end of the elastic element 5 abuts against the side of the vacuum seat 1 facing the retaining ring. (Refer to...) Figure 3 When the guide rod 2 is in the position where the negative pressure inlet 22 communicates with the mounting hole 12, the limiting part 231 at the first end of the guide rod 2 abuts against the lower end face of the vacuum seat 1, and the elastic member 5 is in a free state or in a slightly compressed state, so that the guide rod 2 is held in this position.

[0097] When it is necessary to switch to the position where the positive pressure inlet 27 communicates with the mounting hole 12, refer to Figure 4The actuator 103 applies force to the guide rod 2, causing it to move downwards until the positive pressure inlet 27 connects with the mounting hole 12. During this process, the elastic element 5 is significantly compressed. When the material release is complete and it is necessary to return to the position where the negative pressure inlet 22 connects with the mounting hole 12, simply releasing the actuator 103 allows the guide rod 2 to move to the position where the negative pressure inlet 22 connects with the mounting hole 12 under the elastic force generated when the elastic element 5 recovers its deformation. The switching process is simple and efficient, with a simple structure and convenient assembly, which helps reduce production costs.

[0098] Additionally, refer to Figure 3 and Figure 4 The second end of the vacuum seat 1 is also provided with an annular boss 14. The inner diameter of the annular boss 14 is the same as that of the through hole 11, and the outer diameter of the annular boss 14 is the same as that of the inner diameter of the elastic element 5. In this way, the annular boss 14 can simultaneously enhance the assembly stability of the vacuum seat 1 with the guide rod 2 and the elastic element 5.

[0099] In some examples, a sealing structure is provided between the guide rod 2 and the through hole 11, and / or between the first connecting nozzle 3 and the mounting hole 12, and / or between the second connecting nozzle 4 and the guide rod 2.

[0100] The sealing structure (not shown in the figure) can effectively improve the airtightness between the guide rod 2 and the through hole 11, between the first connecting nozzle 3 and the mounting hole 12, and between the second connecting nozzle 4 and the guide rod 2, which helps to reduce the risk of pressure leakage during the operation of the vacuum breaking device 104 and enable the vacuum breaking device 104 to maintain a stable vacuum adsorption function.

[0101] In one optional embodiment, the sealing structure between the guide rod 2 and the through hole 11 can be achieved by providing a sealing ring between the first end of the guide rod 2 and the first end of the vacuum seat 1, and also by providing a sealing ring between the second end of the guide rod 2 and the second end of the vacuum seat 1. Alternatively, an oil seal can be used between the guide rod 2 and the through hole 11. Other suitable sealing methods can also be used, prioritizing the ability to provide a good sealing effect without affecting the disassembly and assembly of the vacuum breaking device 104.

[0102] In addition, a sealing ring can be used between the first connecting nozzle 3 and the mounting hole 12, and a sealing ring can also be used between the second connecting nozzle 4 and the guide rod 2. This facilitates assembly, ensures stable sealing, and also reduces production costs.

[0103] Meanwhile, the sealing structure can be repaired or replaced when cleaning and maintaining the vacuum breaking device 104, so as to ensure that the vacuum breaking device 104 maintains a stable seal for a long time, reduce the probability of failure, and improve the working stability of the vacuum breaking device 104. Compared with the traditional vacuum breaking device 104, which can only be replaced as a whole when the seal fails or is blocked, this embodiment effectively reduces the production cost.

[0104] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A vacuum breaking device, characterized in that, include: The vacuum base has a through hole and a mounting hole that are connected to each other; A guide rod is movably inserted into the through hole. The guide rod has a connected negative pressure channel and a negative pressure inlet, and the negative pressure inlet can communicate with the mounting hole. The first connector is detachably mounted in the mounting hole for connecting to a vacuum source; The second connecting nozzle is detachably installed on the guide rod and communicates with the negative pressure channel for connecting the suction nozzle; When the guide rod moves along the through hole to the negative pressure inlet and the mounting hole, the negative pressure provided by the vacuum source can be connected to the suction nozzle through the first connecting nozzle, the mounting hole, the negative pressure inlet, the negative pressure channel and the second connecting nozzle to realize the adsorption function of the vacuum breaking device.

2. The vacuum breaking device according to claim 1, characterized in that, The first end of the guide rod is provided with a limiting part, the second end of the guide rod is provided with a detachable stop, and the vacuum seat is located between the limiting part and the stop; During the movement of the guide rod in the first direction, the limiting part can abut against the first end face of the vacuum seat; during the movement of the guide rod in the second direction opposite to the first direction, the stop can abut against the second end face of the vacuum seat.

3. The vacuum breaking device according to claim 2, characterized in that, The limiting part includes a limiting flange disposed on the peripheral sidewall of the guide rod, the outer diameter of the limiting flange being larger than the diameter of the through hole; the peripheral sidewall of the second end of the guide rod is provided with an annular groove, the stop member is engaged in the annular groove, and the outer diameter of the stop member being larger than the diameter of the through hole.

4. The vacuum breaking device according to claim 2, characterized in that, The limiting part also includes a limiting hole, and the first end of the vacuum seat is provided with a positioning part, which cooperates with the limiting hole to limit the circumferential rotation of the guide rod.

5. The vacuum breaking device according to claim 4, characterized in that, The positioning part includes a positioning hole and a positioning pin installed in the positioning hole, the positioning pin being engaged with the limiting hole.

6. The vacuum breaking device according to any one of claims 1-5, characterized in that, The first connecting nozzle and the mounting hole, as well as the second connecting nozzle and the guide rod, are both connected by threads.

7. The vacuum breaking device according to any one of claims 1-5, characterized in that, The guide rod is also provided with a positive pressure channel and a positive pressure inlet that are independent of the negative pressure channel. The positive pressure inlet is connected to the positive pressure channel, and the positive pressure inlet and the negative pressure inlet are spaced apart along the axial direction of the guide rod. When the guide rod moves along the through hole to the positive pressure inlet and connects with the mounting hole, the negative pressure is eliminated, thereby realizing the release function of the vacuum breaking device.

8. The vacuum breaking device according to claim 2, characterized in that, It also includes an elastic element, which is sleeved on the guide rod and abuts against the second end face of the stop and the vacuum seat.

9. The vacuum breaking device according to claim 1, characterized in that, A sealing structure is provided between the guide rod and the through hole, and / or between the first connecting nozzle and the mounting hole, and / or between the second connecting nozzle and the guide rod.

10. A feeding mechanism, characterized in that, It includes a vacuum source, a suction nozzle, a driver, and a vacuum breaking device as described in any one of claims 1-9, wherein the first connecting nozzle is connected to the vacuum source, the second connecting nozzle is connected to the suction nozzle, and the driver is used to drive the guide rod to move.

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