Workpiece double-layer conveying device

Abstract

The invention belongs to the technical field of workpiece conveying, and particularly relates to a workpiece double-layer conveying device which comprises a jacking station, an upper-layer conveying station and a lower-layer conveying station, the upper-layer conveying station and the lower-layer conveying station are arranged on a mounting platform in a stacked mode in the vertical direction, and the mounting platform is mounted at the moving end of the jacking station; the jacking station is used for driving the upper-layer conveying station and the lower-layer conveying station to ascend and descend synchronously. By the adoption of the conveying stations designed in a stacked mode, the problem that due to tiled layout of a conveying station operation area, the occupied space of equipment is large is solved, and the occupied length of the device is reduced; and the height of the two layers of conveying stations is adjusted in cooperation with the jacking station, butt joint with other devices in the dispensing machine is facilitated, it is ensured that all parts of the whole production system can work cooperatively, feeding and discharging operation of workpieces on the two layers of stations is also facilitated, smooth connection of the production process is guaranteed, and the production efficiency and stability are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of workpiece transmission, and in particular to a double-layer workpiece transmission device. Background Art

[0002] Underfill dispensing is a common back-end packaging and testing process in semiconductor manufacturing. In traditional dispensing machine layout design, preheating stations, dispensing stations, and holding stations are usually set up in sequence along the production line. When processing larger chips, to ensure the production efficiency of a single machine, multiple work areas are generally set up in the dispensing station. Each work area can correspond to a carrier for holding the workpiece. Based on this design, the number of work areas in the accompanying preheating and holding stations must also be consistent with the number of work areas in the dispensing station to ensure a smooth connection of the entire production process.

[0003] However, if the working areas in the preheating station and the insulation station adopt the conventional track-laying layout, the length of the dispensing machine equipment in the direction of the production line will be greatly increased. This layout will not only take up more production space, but also cannot be applied at all in some production scenarios with relatively cramped space layouts, thereby limiting the flexible application of the dispensing machine in different production environments. Summary of the Invention

[0004] The technical problem solved by the present invention is that the preheating station and the heat preservation station operating areas adopt a flat layout, resulting in a large equipment footprint.

[0005] To this end, the present invention provides a double-layer workpiece transmission device, which reduces the length of the device through a stacking design.

[0006] The double-layer workpiece transmission device according to an embodiment of the present invention is located between a loading mechanism and an operating mechanism, or between an operating mechanism and an unloading mechanism. The double-layer workpiece transmission device can sequentially transmit two workpieces to the operating mechanism, or can sequentially receive two workpieces transmitted by the operating mechanism, and includes: a lifting station, an upper-layer transmission station, and a lower-layer transmission station. The upper conveying station and the lower conveying station are stacked in the vertical direction on the mounting platform, and the mounting platform is installed on the moving end of the lifting station, and the lifting station is used to drive the upper conveying station and the lower conveying station to rise and fall synchronously; The upper conveying station includes an upper conveying mechanism and an upper lifting mechanism. The upper conveying mechanism is used to convey a workpiece. The upper lifting mechanism is arranged below the upper conveying mechanism and can be used to lift the workpiece so that the workpiece and the upper conveying mechanism are separated from each other. The lower conveying station includes a lower conveying mechanism and a lower lifting mechanism. The lower conveying mechanism is used to convey another workpiece. The lower lifting mechanism is arranged below the lower conveying mechanism and can be used to lift the workpiece so that the workpiece and the lower conveying mechanism are separated up and down.

[0007] The beneficial effect of the present invention is that, by adopting a stacked design of the conveying station, the problem of the large equipment space occupied due to the flat layout of the preheating station or the insulation station working area is solved, the length of the device is reduced, and the production space is saved, so that the dispensing machine can be used in production scenarios with a relatively cramped space layout; and the height of the two-layer conveying station is adjusted in conjunction with the jacking station to facilitate docking with other devices in the dispensing machine, ensuring that all parts of the entire production system can work together, and also facilitating the loading and unloading operations of workpieces on the double-layer conveying station, ensuring the smooth connection of the production process, and improving production efficiency and stability.

[0008] According to one embodiment of the present invention, the lower conveying station further includes a pull-out mechanism, which includes a fixed-track platform and a pull-out platform. The fixed-track platform is mounted on the moving end of the lower lifting mechanism, and the pull-out platform is slidably mounted on the fixed-track platform. Thus, the pull-out design enables quick and convenient replacement of the lower heating fixture, shortening workpiece changeover time, improving the flexibility and responsiveness of the production line, and resolving the issue of the lower conveying station being blocked by the upper conveying station or other components on the entire machine, making it difficult to replace the lower heating fixture, inspect, or clean the equipment.

[0009] According to one embodiment of the present invention, the fixed rail platform includes a bottom plate portion and two side rail portions, the bottom plate portion is installed at the moving end of the lower lifting mechanism, the two side rail portions are respectively installed on both sides of the bottom plate portion, the bottom plate portion is provided with a guide bearing, the lower end of the pulling-out platform is provided with a guide groove for the guide bearing to slide, both sides of the pulling-out platform are provided with guide bearings, the two side rail portions are respectively provided on both sides of the pulling-out platform, and the side rail portions are provided with guide grooves for the guide bearing to slide. Thus, the pulling-out operation is made smoother by the guide bearings, the guide grooves provided at the lower end of the pulling-out platform cooperate with the guide bearings on the bottom plate portion to form a horizontal constraint mechanism, which can prevent the pulling-out platform from moving left and right during the pulling-out process, and the guide bearings on both sides of the pulling-out platform interact with the guide grooves on the side rail portions to form a longitudinal constraint structure, which can prevent the pulling-out platform from moving up and down during the pulling-out process.

[0010] According to one embodiment of the present invention, a manual quick-release latch is provided on the pull-out platform, and a socket is provided on the fixed rail platform. The manual quick-release latch is operably inserted into the socket to secure the pull-out platform. Thus, the design of the manual quick-release latch allows the operator to quickly and easily secure the pull-out platform to the fixed rail platform, or quickly unlock the pull-out platform when it is necessary to move it.

[0011] According to one embodiment of the present invention, an upper heating fixture is provided on the movable end of the upper lifting mechanism, which is equipped with a heating element for heating the workpiece. A lower heating fixture is provided on the movable end of the lower lifting mechanism, which is also equipped with a heating element for heating the workpiece. Thus, by combining the upper and lower heating fixtures, the double-layer workpiece transfer device of the present invention can be used in preheating stations or heat-keeping stations, such as those requiring preheating or heat-keeping of the workpiece.

[0012] According to one embodiment of the present invention, the upper conveying mechanism is equipped with an upper blocking mechanism, which is located in front of the workpiece in the conveying direction. The upper blocking mechanism includes an upper blocking cylinder and an upper blocking block. The upper blocking cylinder is used to drive the upper blocking block to move in the vertical direction, thereby blocking the workpiece from moving forward. Thus, the cooperation between the upper blocking mechanism, the upper conveying mechanism, and the upper lifting mechanism achieves precise control and orderly connection of the workpiece conveying, positioning, and heating processes.

[0013] According to one embodiment of the present invention, the lower conveying mechanism is provided with a lower blocking mechanism, which is positioned in front of the workpiece in the conveying direction. The lower blocking mechanism comprises a lower blocking cylinder and a lower blocking block. The lower blocking cylinder is used to drive the lower blocking block to move in the vertical direction, thereby blocking the workpiece from advancing. Thus, through the cooperation of the lower blocking mechanism with the lower conveying mechanism and the lower lifting mechanism, precise control and orderly connection of the workpiece conveying, positioning, and heating processes are achieved.

[0014] According to one embodiment of the present invention, the upper conveying mechanism includes an upper mounting plate, an upper drive motor, a first upper transmission belt, a second upper transmission belt, and an upper width adjustment assembly. The upper mounting plate is mounted on the mounting platform, the upper drive motor and the first upper transmission belt are both disposed on the upper mounting plate, the first upper transmission belt and the second upper transmission belt are disposed relative to each other at the output end of the upper drive motor, and the second upper transmission belt is movably disposed on the upper mounting plate via the upper width adjustment assembly to move closer to or further away from the first upper transmission belt. Thus, this design allows the second upper transmission belt to move closer to or further away from the first upper transmission belt through the upper width adjustment assembly, flexibly adjusting the transmission belt spacing to precisely adapt to the dimensional requirements of different workpiece models.

[0015] According to one embodiment of the present invention, the lower conveying mechanism includes a lower mounting plate, a lower drive motor, a first lower transmission belt, a second lower transmission belt, and a lower width adjustment assembly. The lower mounting plate is mounted on the mounting platform, the lower drive motor and the first lower transmission belt are both mounted on the lower mounting plate, the first lower transmission belt and the second lower transmission belt are positioned relative to each other at the output end of the lower drive motor, and the second lower transmission belt is movably mounted on the lower mounting plate via the lower width adjustment assembly to move closer to or further away from the first lower transmission belt. Thus, this design allows the second lower transmission belt to move closer to or further away from the first lower transmission belt via the lower width adjustment assembly, flexibly adjusting the transmission belt spacing to precisely accommodate the dimensional requirements of different workpiece models.

[0016] According to one embodiment of the present invention, the jacking station includes a jacking motor, a jacking screw, a nut mounting seat, a jacking rod, a jacking slider, a jacking rail and a base, wherein the jacking rail extends in a vertical direction and is mounted on the base, the jacking slider is slidably mounted on the jacking rail, the jacking slider is connected to the nut mounting seat, the jacking rod is mounted on the nut mounting seat in a vertical direction, the mounting platform is mounted on the jacking rod, the nut mounting seat is sleeved on the jacking screw, and the jacking screw is arranged in a vertical direction on the output end of the jacking motor. Thus, through the coordinated cooperation of the jacking motor, the jacking screw and the slider and rail structure, the height of the upper and lower conveying stations can be adjusted accurately, stably and flexibly.

[0017] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or understood by practicing the present invention. The purposes and other advantages of the present invention are realized and obtained by the structures particularly pointed out in the description, claims and drawings.

[0018] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below with reference to the accompanying drawings and examples.

[0020] Figure 1 It is a structural schematic diagram of the double-layer workpiece transmission device of the present invention.

[0021] Figure 2 This is a schematic structural diagram of the double-layer workpiece transmission device from another perspective of the present invention.

[0022] Figure 3 This is a structural schematic diagram of the lower conveying station of the present invention in the pulled-out state.

[0023] Figure 4 It is a structural schematic diagram of the jacking station of the present invention.

[0024] Figure 5 This is a structural schematic diagram of the jacking station of the present invention from another perspective.

[0025] Figure 6 It is a structural schematic diagram of the upper conveying station of the present invention.

[0026] Figure 7 It is a structural schematic diagram of the lower conveying station of the present invention.

[0027] Figure 8 for Figure 7 main view.

[0028] Figure 9 It is a structural schematic diagram of the upper conveying mechanism and the lower conveying mechanism of the present invention.

[0029] Figure 10 This is a structural schematic diagram of the upper conveying mechanism and the lower conveying mechanism of the present invention from another perspective.

[0030] Figure 11 It is a structural schematic diagram of the upper blocking cylinder of the present invention.

[0031] In the figure: 1. Lifting station; 101. Lifting motor; 102. Lifting screw; 103. Nut mounting base; 104. Lifting rod; 105. Lifting slider; 106. Lifting rail; 107. Base; 2. Upper conveying station; 201. Upper heating fixture; 202. Upper conveying mechanism; 202-1. Upper mounting plate; 202-2. Upper drive motor; 202-3. First upper transmission belt; 202-4. Second upper transmission belt; 202-5. Upper width adjustment assembly; 203. Upper lifting mechanism; 203-1. Lifting cylinder; 203-2. Lifting plate; 203-3. Guide column; 203-4. Bushing; 204. Upper blocking cylinder; 205. Upper blocking block; 206. Upper detection photoelectric device; 207. Upper photoelectric baffle; 3. Lower conveying station; 301. Lower heating fixture; 302. Drawing mechanism; 302-1. Tracking platform; 302-1-1. Bottom plate; 302-1-2. Side rails; 302-2. Drawing platform; 302-3. Guide bearing; 302-4. Guide groove; 302-5. Manual quick-release latch; 303. Lower conveying mechanism; 303-1. Lower mounting plate; 303-2. Lower drive motor; 303-3. First lower transmission belt; 303-4. Second lower transmission belt; 303-5. Lower width adjustment assembly; 304. Lower lifting mechanism; 305. Lower blocking cylinder; 306. Lower blocking block; 307. Lower detection photoelectric device; 308. Lower photoelectric baffle; 4. Installation platform; 5. Heating element. DETAILED DESCRIPTION

[0032] The present invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic diagrams that illustrate the basic structure of the present invention in a schematic manner.

[0033] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, features defined as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0034] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0035] The double-layer workpiece transmission device of the present invention can be located between the loading mechanism and the operating mechanism, or between the operating mechanism and the unloading mechanism. When the double-layer workpiece transmission device is located between the loading mechanism and the operating mechanism, it is used to perform preheating transmission operations on the workpieces. The double-layer workpiece transmission device can sequentially convey two workpieces to the operating mechanism. When the double-layer workpiece transmission device is located between the operating mechanism and the unloading mechanism, it is used to perform heat preservation transmission operations on the workpieces and can sequentially take over the two workpieces conveyed by the operating mechanism.

[0036] Preferably, the double-layer workpiece transmission device of the present invention can also be used on other equipment with limited horizontal space and need to transport multiple workpieces in sequence, using vertical space to achieve sequential transmission of workpieces, effectively solving the problem of large equipment footprint.

[0037] Specifically, such as Figures 1 to 11As shown, it is a preferred embodiment of the present invention. The double-layer workpiece transmission device of this embodiment includes: a lifting station 1, an upper conveying station 2 and a lower conveying station 3. The upper conveying station 2 and the lower conveying station 3 are stacked in the up and down directions on the installation platform 4. The installation platform 4 is installed on the moving end of the lifting station 1. The lifting station 1 is used to drive the upper conveying station 2 and the lower conveying station 3 to rise and fall synchronously; the upper conveying station 2 includes an upper heating tool 201, an upper conveying mechanism 202 and an upper lifting mechanism 203. The upper heating tool 201 is arranged on the moving end of the upper lifting mechanism 203. A heating element 5 is provided on the upper heating tool 201. The upper heating tool 201 is used to heat the workpiece, and the upper conveying mechanism 202 is used to convey A workpiece, the upper lifting mechanism 203 is arranged below the upper conveying mechanism 202, and can be used to lift the upper heating tooling 201, thereby making the workpiece and the upper conveying mechanism 202 separated from each other, the lower conveying station 3 includes a lower heating tooling 301, a lower conveying mechanism 303 and a lower lifting mechanism 304, the lower heating tooling 301 is arranged on the moving end of the lower lifting mechanism 304, and a heating element 5 is provided on the lower heating tooling 301, the lower heating tooling 301 is used to heat the workpiece, the lower conveying mechanism 303 is used to convey another workpiece, the lower lifting mechanism 304 is arranged below the lower conveying mechanism 303, and can be used to lift the lower heating tooling 301, thereby making the workpiece and the lower conveying mechanism 303 separated from each other.

[0038] Thus, the loading and unloading of workpieces is achieved through the upper conveying mechanism 202. When the workpiece is delivered to the position, the upper lifting mechanism 203 is used to lift the upper heating fixture 201 in the vertical direction. When the upper heating fixture 201 is lifted and contacts the workpiece, it continues to lift upward, and the workpiece is separated from the upper conveying mechanism 202. This prevents the upper conveying mechanism 202 from operating in a high-temperature environment for a long time, extends the service life of the conveying mechanism, and allows the workpiece to be placed on the upper heating fixture 201 and heated. The loading and unloading of workpieces is achieved through the lower conveying mechanism 303. When the workpiece is delivered to the position, the lower lifting mechanism 304 is used to lift the lower heating fixture 301 in the vertical direction. When the lower heating fixture 301 is lifted and contacts the workpiece, it continues to lift upward, and the workpiece is separated from the lower conveying mechanism 303. This prevents the lower conveying mechanism 303 from operating in a high-temperature environment for a long time, extends the service life of the lower conveying mechanism 303, and allows the workpiece to be placed on the lower heating fixture 301 and heated. Preferably, if the workpiece does not require heating, the upper heating fixture 201 and the lower heating fixture 301 can be replaced with other positioning fixtures, so that the workpiece can be accurately positioned on the fixture after being separated from the conveying mechanism, making it easier for other operating mechanisms to operate on the workpiece on the fixture.

[0039] Traditional preheating stations and heat preservation stations adopt a conventional track flat layout. As the number of working areas increases, the equipment continues to extend in the horizontal direction, resulting in a significant increase in the size of a single machine, which occupies a large amount of valuable production site space. The present invention adopts a stacked design of heating stations, which stacks multiple working areas in the vertical direction, making full use of the vertical space. It is small in size and matches the number of working areas of the dispensing station without increasing the horizontal floor area of ​​the equipment, effectively solving the problem of large equipment floor space. The vertical position of the two layers of heating stations is adjusted by the lifting station 1, and the operations of the heating stations on each layer can be carried out independently without interfering with each other. When a certain layer of heating stations has completed the preheating or heat preservation operation, it can be directly connected to the dispensing device to transport the workpiece over for dispensing operation, while the workpieces on the other layers of heating stations continue to undergo corresponding heating treatment. This parallel operation mode ensures the continuity of the production process. During the production process, the workpiece at the subsequent station does not need to wait for the workpiece at the previous station to complete the heating operation before it can be transported and glued. This avoids the situation where subsequent stations have to wait due to unfinished operations at a certain station, causing production line congestion, thereby improving production efficiency.

[0040] In a preferred embodiment, the jacking station 1 includes a jacking motor 101, a jacking screw 102, a nut mounting seat 103, a jacking rod 104, a jacking slider 105, a jacking slide rail 106 and a base 107. The jacking slide rail 106 extends vertically and is mounted on the base 107. The jacking slider 105 is slidably mounted on the jacking slide rail 106. The jacking slider 105 is connected to the nut mounting seat 103. The jacking rod 104 is vertically mounted on the nut mounting seat 103. The mounting platform 4 is mounted on the jacking rod 104. The nut mounting seat 103 is sleeved on the jacking screw 102. The jacking screw 102 is vertically arranged on the output end of the jacking motor 101. Therefore, through the coordinated cooperation of the jacking motor 101, the jacking screw 102 and the slider and rail structure, highly accurate, stable and flexible adjustment of the upper and lower conveying stations 3 is achieved. The lifting motor 101, as a driving source, can precisely control the number of rotations and angles of the lifting screw 102. Because the nut mounting seat 103 and the lifting screw 102 are threaded together, the screw's rotation is converted into linear motion of the nut mounting seat 103, which in turn drives the lifting rod 104, the mounting platform 4, and the upper and lower conveying stations 2 and 3 to precisely move in the vertical direction. Compared to using the lifting cylinder 203-1 as a driving source (which can only achieve lifting at two fixed positions) and cannot meet the docking requirements of different heights, the design of the present invention enables the upper and lower conveying stations 3 to be accurately docked to any set height position.

[0041] Specifically, the lifting motor 101 and the lifting screw 102 are connected via a transmission structure, which can be a belt drive structure, a chain drive structure, or a gear drive structure. The indirect connection between the lifting motor 101 and the lifting screw 102 via the transmission structure has significant advantages over the method of directly connecting the lifting screw 102 to the motor shaft in terms of reducing motor load, improving transmission performance, and enhancing equipment stability. Preferably, the lifting motor 101 is a servo motor.

[0042] In a preferred embodiment, the lower conveying station 3 further includes a pulling mechanism 302, which includes a fixed track platform 302-1 and a pulling platform 302-2. The fixed track platform 302-1 is installed at the moving end of the lower lifting mechanism 304, and the pulling platform 302-2 is slidably installed on the fixed track platform 302-1. The lower heating tool 301 is set on the pulling platform 302-2, and the pulling platform 302-2 drives the lower heating tool 301 to move horizontally. Therefore, through the pull-out design, the lower heating tool 301 can be quickly and conveniently replaced, shortening the workpiece changeover time, improving the flexibility and response speed of the production line, and also solving the problem that the lower conveying station 3 is blocked by the upper conveying station 2 or other components on the entire equipment, making it inconvenient to replace the tool, inspect or clean the equipment.

[0043] In a preferred embodiment, the fixed rail platform 302-1 includes a bottom plate portion 302-1-1 and two side rail portions 302-1-2. The bottom plate portion 302-1-1 is installed on the moving end of the lower lifting mechanism 304, and the two side rail portions 302-1-2 are respectively installed on both sides of the bottom plate portion 302-1-1. A guide bearing 302-3 is provided on the bottom plate portion 302-1-1, and a guide groove 302-4 for sliding of the guide bearing 302-3 is provided at the lower end of the pulling platform 302-2. Guide bearings 302-3 are provided on both sides of the pulling platform 302-2. The two side rail portions 302-1-2 are respectively arranged on both sides of the pulling platform 302-2, and the side rail portions 302-1-2 are provided with a guide groove 302-4 for sliding of the guide bearing 302-3. Therefore, the pulling and drawing operation is made smoother by the guide bearing 302-3, and the guide groove 302-4 set at the lower end of the pulling and drawing platform 302-2 cooperates with the guide bearing 302-3 on the bottom plate part 302-1-1 to form a horizontal constraint mechanism, which can prevent the pulling and drawing platform 302-2 from moving left and right during the pulling and drawing process. The guide bearings 302-3 on both sides of the pulling and drawing platform 302-2 interact with the guide groove 302-4 on the side rail part 302-1-2 to form a longitudinal constraint structure, which can prevent the pulling and drawing platform 302-2 from moving up and down during the pulling and drawing process.

[0044] In a preferred embodiment, a manual quick-release latch 302-5 is provided on the pull-out platform 302-2, and a socket is provided on the track-fixing platform 302-1. The manual quick-release latch 302-5 is operably inserted into the socket to secure the pull-out platform 302-2. Thus, the design of the manual quick-release latch 302-5 allows the operator to quickly and easily secure the pull-out platform 302-2 to the track-fixing platform 302-1, or quickly unlock the pull-out platform 302-2 when it is necessary to move it.

[0045] In a preferred embodiment, the upper conveying mechanism 202 is provided with an upper blocking mechanism, which is arranged in front of the workpiece conveying direction. The upper blocking mechanism includes an upper blocking cylinder 204 and an upper blocking block 205. The upper blocking cylinder 204 is used to drive the upper blocking block 205 to move in the vertical direction, thereby blocking the workpiece from advancing. Thus, through the cooperation of the upper blocking mechanism with the upper conveying mechanism 202 and the upper lifting mechanism 203, precise control and orderly connection of the workpiece conveying, positioning and heating processes are achieved. The upper blocking mechanism is arranged in front of the workpiece conveying direction. When the workpiece is blocked by the upper blocking block 205 during conveying, it indicates that the workpiece has been accurately conveyed to the specified position. The physical blocking method provides a reliable basis for workpiece positioning, avoids workpiece position deviation due to conveying error or inertia, ensures that each workpiece can be heated in the same position, and improves production consistency and product quality. After heating is completed, the upper blocking cylinder 204 controls the upper blocking block 205 to descend, releasing the obstruction on the workpiece, allowing the workpiece to continue to advance along the conveying direction and enter the next production process.

[0046] In a preferred embodiment, the lower conveying mechanism 303 is provided with a lower blocking mechanism, which is positioned in front of the workpiece in the conveying direction. The lower blocking mechanism includes a lower blocking cylinder 305 and a lower blocking block 306. The lower blocking cylinder 305 is used to drive the lower blocking block 306 to move vertically, thereby blocking the workpiece from advancing. Specifically, the lower blocking mechanism has the same structure as the upper blocking mechanism. Thus, the coordination of the lower blocking mechanism with the lower conveying mechanism 303 and the lower lifting mechanism 304 enables precise control and orderly connection of the workpiece conveying, positioning, and heating processes. The lower blocking mechanism is arranged in front of the workpiece conveying direction. When the workpiece is blocked by the lower blocking block 306 during the conveying process, it indicates that the workpiece has been accurately conveyed to the specified position. The physical blocking method provides a reliable basis for the positioning of the workpiece, avoiding the position deviation of the workpiece due to conveying error or inertia, and ensuring that each workpiece can perform subsequent heating operations in the same position, thereby improving the consistency of production and product quality. After the heating is completed, the lower blocking cylinder 305 controls the lower blocking block 306 to descend, releasing the blockage of the workpiece, so that the workpiece can continue to move along the conveying direction and enter the next production process.

[0047] Specifically, the upper mounting plate 202-1 and the lower mounting plate 303-1 are integrated to form a whole plate-like structure, the first upper transmission belt 202-3 and the first lower transmission belt 303-3 are installed on the plate-like structure in the up-down direction, and a partition plate is provided in the middle of the plate-like structure to separate the upper heating station and the lower heating station, one end of the partition plate is connected to the plate-like structure, and the other end of the partition plate is connected to the mounting platform 4 through a support column, the upper width adjustment component 202-5 and the lower width adjustment component 303-5 are the same width adjustment component structure, and the width adjustment component is provided On the partition plate, the width adjustment component includes a width adjustment guide rail and a width adjustment slider. The width adjustment slider is slidably installed on the width adjustment guide rail. A movable mounting plate is installed on one side of the width adjustment slider. The second upper transmission belt 202-4 and the second lower transmission belt 303-4 are installed on the movable mounting plate along the up and down directions. Therefore, the width adjustment slider moves along the width adjustment guide rail to synchronously adjust the position of the second upper transmission belt 202-4 and the second lower transmission belt 303-4, ensuring the consistency of the transmission belt spacing in the upper conveying mechanism 202 and the lower conveying mechanism 303. This design makes the width adjustment component structure simple.

[0048] The upper lifting mechanism 203 is mounted on the partition plate, and the lower lifting mechanism 304 is mounted on the mounting platform 4. Specifically, the upper lifting mechanism 203 includes a lifting cylinder 203-1, a lifting plate 203-2, a guide post 203-3, and a sleeve 203-4. The lifting cylinder 203-1 is mounted on the partition plate, the lifting plate 203-2 is mounted on the moving end of the lifting cylinder 203-1, one end of the guide post 203-3 is connected to the lifting plate 203-2, and the other end of the guide post 203-3 is slidably connected to the sleeve 203-4. The sleeve 203-4 is mounted on the partition plate and sleeved on the guide post 203-3. The lower lifting mechanism 304 has the same structure as the upper lifting mechanism 203 and will not be described in detail here.

[0049] An upper detection photoelectric sensor 206 is provided on the partition plate, and an upper photoelectric baffle 207 is provided on the upper heating fixture 201. The upper photoelectric baffle 207 cooperates with the upper detection photoelectric sensor 206 to detect whether the upper heating fixture 201 is in the raised or lowered position. A lower detection photoelectric sensor 307 is provided on the mounting platform 4, and a lower photoelectric baffle 308 is provided on the lower heating fixture 301. The lower photoelectric baffle 308 cooperates with the lower detection photoelectric sensor 307 to detect whether the lower heating fixture 301 is in the raised or lowered position.

[0050] When the present invention is used as a preheating station to connect with the loading station and the dispensing station, the specific working process is as follows: When the preheating station is docked with the loading station: the lifting motor 101 is started, driving the lifting screw 102 to rotate, and the rotation of the lifting screw 102 is converted into a linear motion of the nut mounting seat 103, thereby driving the lifting rod 104, the mounting platform 4 and the upper conveying station 2 and the lower conveying station 3 to move precisely in the vertical direction until any layer of heating station is docked with the loading station, for example, the heating station of this layer is the upper conveying station 2, and the workpiece on the loading station is transported to the upper conveying station 2, and the workpiece is transported along the upper conveying mechanism 202 until it is blocked by the upper blocking block 205, which means that The workpiece is delivered to the position. At this time, the upper lifting mechanism 203 is used to lift the upper heating fixture 201 in the up and down direction. When the upper heating fixture 201 is lifted to contact with the workpiece, it continues to lift upward, and the workpiece is separated from the upper conveying mechanism 202. The heating element 5 on the upper heating fixture 201 works to preheat the workpiece. At the same time, the lifting motor 101 drives the installation platform 4 and the upper conveying station 2 and the lower conveying station 3 to rise and fall, so that the lower conveying station 3 is docked with the loading station. Another workpiece on the loading station is transported to the lower conveying station 3, and the lower conveying station 3 performs a preheating operation on the workpiece. During the docking process between the lower conveying station 3 and the loading station, the upper heating tooling 201 completes the preheating operation, the upper lifting mechanism 203 drives the workpiece to descend, so that the workpiece is placed on the upper conveying mechanism 202, and the upper blocking cylinder 204 drives the upper blocking block 205 to descend. At this time, the preheated workpiece is in a ready state to be transported to the dispensing operation station.

[0051] When the preheating station is docked with the gluing operation station: the lifting motor 101 drives the installation platform 4 and the upper conveying station 2 and the lower conveying station 3 to rise and fall until the upper conveying station 2 is docked with the gluing operation station, and the preheated workpiece is transported to the gluing operation station by the upper conveying mechanism 202, and is transported to the corresponding gluing work area through the conveying mechanism of the gluing operation station. At this time, the workpiece on the lower conveying station 3 completes the preheating operation, and the preheated workpiece is in a ready state to be transported to the gluing operation station. The lifting motor 101 drives the installation platform 4 and the upper conveying station 2 and the lower conveying station 3 to rise and fall until the lower conveying station 3 is docked with the gluing operation station, and the preheated workpiece on the lower conveying station 3 is transported to the gluing operation station by the lower conveying mechanism 303, and is transported to the corresponding gluing work area through the conveying mechanism of the gluing operation station.

[0052] Repeat the above working process to realize the process of docking loading, jacking preheating, and docking unloading of the entire production line.

[0053] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative uses of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0054] With the above-described preferred embodiments of the present invention as a guide, and with reference to the above description, relevant personnel are fully capable of making various changes and modifications without departing from the technical spirit of this invention. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A double-layer workpiece transmission device, characterized in that: The workpiece double-layer transmission device is located between a loading mechanism and an operating mechanism, or between an operating mechanism and an unloading mechanism. The workpiece double-layer transmission device can sequentially transmit two workpieces to the operating mechanism, or can sequentially receive two workpieces transmitted by the operating mechanism. The workpiece double-layer transmission device comprises: a lifting station (1), an upper-layer transmission station (2), and a lower-layer transmission station (3). The upper conveying station (2) and the lower conveying station (3) are stacked in the vertical direction on a mounting platform (4), and the mounting platform (4) is mounted on the moving end of the lifting station (1). The lifting station (1) is used to drive the upper conveying station (2) and the lower conveying station (3) to rise and fall synchronously. The upper conveying station (2) comprises an upper conveying mechanism (202) and an upper lifting mechanism (203), wherein the upper conveying mechanism (202) is used to convey a workpiece, and the upper lifting mechanism (203) is arranged below the upper conveying mechanism (202) and can be used to lift the workpiece so that the workpiece and the upper conveying mechanism (202) are separated from each other. The lower conveying station (3) comprises a lower conveying mechanism (303) and a lower lifting mechanism (304). The lower conveying mechanism (303) is used to convey another workpiece. The lower lifting mechanism (304) is arranged below the lower conveying mechanism (303) and can be used to lift the workpiece so that the workpiece and the lower conveying mechanism (303) are separated from each other.

2. The double-layer workpiece transmission device according to claim 1, characterized in that: The lower conveying station (3) further comprises a drawing mechanism (302), wherein the drawing mechanism (302) comprises a track-fixing platform (302-1) and a drawing platform (302-2), wherein the track-fixing platform (302-1) is mounted on the moving end of the lower lifting mechanism (304), and the drawing platform (302-2) is slidably mounted on the track-fixing platform (302-1).

3. The double-layer workpiece transmission device according to claim 2, characterized in that: The fixed rail platform (302-1) includes a bottom plate portion (302-1-1) and two side rail portions (302-1-2), the bottom plate portion (302-1-1) is installed at the moving end of the lower lifting mechanism (304), the two side rail portions (302-1-2) are respectively installed on both sides of the bottom plate portion (302-1-1), and a guide bearing (302-3) is provided on the bottom plate portion (302-1-1). The pulling platform ( The lower end of the drawer (302-2) is provided with a guide groove (302-4) for the guide bearing (302-3) to slide, and guide bearings (302-3) are provided on both sides of the drawer platform (302-2). The two side rails (302-1-2) are respectively provided on both sides of the drawer platform (302-2), and the side rails (302-1-2) are provided with guide grooves (302-4) for the guide bearing (302-3) to slide.

4. The double-layer workpiece transmission device according to claim 2, characterized in that: The pulling platform (302-2) is provided with a manual quick-insertion pin (302-5), and the track fixing platform (302-1) is provided with a socket. The manual quick-insertion pin (302-5) can be operably inserted into the socket to fix the pulling platform (302-2).

5. The double-layer workpiece transmission device according to claim 1, characterized in that: An upper heating fixture (201) is provided on the moving end of the upper lifting mechanism (203), a heating element (5) is provided on the upper heating fixture (201), and the upper heating fixture (201) is used to heat the workpiece. A lower heating fixture (301) is provided on the moving end of the lower lifting mechanism (304), a heating element (5) is also provided on the lower heating fixture (301), and the lower heating fixture (301) is used to heat the workpiece.

6. The double-layer workpiece transmission device according to claim 1, characterized in that: An upper blocking mechanism is provided on the upper conveying mechanism (202), and the upper blocking mechanism is provided in front of the workpiece conveying direction. The upper blocking mechanism comprises an upper blocking cylinder (204) and an upper blocking block (205). The upper blocking cylinder (204) is used to drive the upper blocking block (205) to move in the up and down directions, thereby blocking the workpiece from moving forward.

7. The double-layer workpiece transmission device according to claim 1, characterized in that: The lower conveying mechanism (303) is provided with a lower blocking mechanism, which is arranged in front of the workpiece conveying direction. The lower blocking mechanism comprises a lower blocking cylinder (305) and a lower blocking block (306). The lower blocking cylinder (305) is used to drive the lower blocking block (306) to move in the up and down directions, thereby blocking the workpiece from moving forward.

8. The double-layer workpiece transmission device according to claim 1, characterized in that: The upper conveying mechanism (202) comprises an upper mounting plate (202-1), an upper drive motor (202-2), a first upper transmission belt (202-3), a second upper transmission belt (202-4) and an upper width adjustment component (202-5); the upper mounting plate (202-1) is mounted on the mounting platform (4); the upper drive motor (202-2) and the first upper transmission belt (202-3) are both arranged on the upper mounting plate (202-1); the first upper transmission belt (202-3) and the second upper transmission belt (202-4) are relatively arranged at the output end of the upper drive motor (202-2); the second upper transmission belt (202-4) is movably arranged on the upper mounting plate (202-1) through the upper width adjustment component (202-5) to approach or move away from the first upper transmission belt (202-3).

9. The double-layer workpiece transmission device according to claim 1, characterized in that: The lower conveying mechanism (303) comprises a lower mounting plate (303-1), a lower driving motor (303-2), a first lower transmission belt (303-3), a second lower transmission belt (303-4) and a lower width adjustment component (303-5); the lower mounting plate (303-1) is mounted on the mounting platform (4); the lower driving motor (303-2) and the first lower transmission belt (303-3) are both arranged on the lower mounting plate (303-1); the first lower transmission belt (303-3) and the second lower transmission belt (303-4) are relatively arranged at the output end of the lower driving motor (303-2); the second lower transmission belt (303-4) is movably arranged on the lower mounting plate (303-1) through the lower width adjustment component (303-5) to approach or move away from the first lower transmission belt (303-3).

10. The double-layer workpiece transmission device according to claim 1, characterized in that: The jacking station (1) comprises a jacking motor (101), a jacking screw rod (102), a nut mounting seat (103), a jacking rod (104), a jacking slider (105), a jacking slide rail (106) and a base (107), wherein the jacking slide rail (106) extends in a vertical direction and is mounted on the base (107), the jacking slider (105) is slidably mounted on the jacking slide rail (106), the jacking slider (105) is connected to the nut mounting seat (103), the jacking rod (104) is mounted on the nut mounting seat (103) in a vertical direction, the mounting platform (4) is mounted on the jacking rod (104), the nut mounting seat (103) is sleeved on the jacking screw rod (102), and the jacking screw rod (102) is arranged on the output end of the jacking motor (101) in a vertical direction.

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