An automatic in-line hot pressing assembly line for plastic products

Abstract

The present invention relates to a hot-pressing built-in automatic assembly line for plastic products, belonging to the technical field of notebook shell processing. The hot-pressing built-in automatic assembly line for plastic products includes a machine body, an assembly line, and an auxiliary material transfer mechanism. A plurality of the assembly lines are arranged on the machine body at intervals in the horizontal direction. Each of the assembly lines includes a conveying mechanism, a hot melting mechanism, and an auxiliary material feeding mechanism. A plurality of the auxiliary material feeding mechanisms are provided. The hot melting mechanism is located between any two adjacent auxiliary material feeding mechanisms. The hot melting mechanism is used for hot-pressing the auxiliary materials already attached to the product or melting the positions of the auxiliary materials to be attached. There is an installation gap between adjacent assembly lines. The auxiliary material transfer mechanism is arranged on the machine body and located in the installation gap. The auxiliary material transfer mechanism corresponds to the auxiliary material feeding mechanisms on adjacent assembly lines one by one. The present invention has the advantage of improving the assembly efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of notebook shell processing, and in particular to a hot-pressing built-in automatic assembly line for plastic products. Background Art

[0002] In the processing of plastic notebook shell products, there is usually a process of hot-pressing and attaching small accessories to the surface of the notebook shell to achieve the functions of increasing brand recognition and displaying product information.

[0003] In the related art, a Chinese patent document with the publication number CN118372477A discloses a hot-pressing built-in automatic assembly line for an externally hot-pressed plastic product, which includes a machine body, a product conveying mechanism, a labeling mechanism, and a hot-melting mechanism. The product conveying mechanism is arranged through the machine body, the labeling mechanism is arranged on the machine body, and the labeling mechanism is used to attach accessories to the surface of the product on the product conveying mechanism. The product conveying mechanism penetrates through the hot-melting mechanism, and the product conveying mechanism is a U-shaped conveying line. During operation, the product is conveyed by the product conveying mechanism, then the hot-melting mechanism is used to hot-press the position where the accessories of the product are attached or to hot-melt the position where the accessories to be attached are located, then the labeling mechanism attaches the accessories to the product, and then it is conveyed out through the conveying mechanism.

[0004] Regarding the above related art, when the U-shaped assembly line is working, it can only assemble the accessories on one product model. When it is necessary to assemble the accessories on other product models, it is necessary to wait until the assembly of the products on the product conveying mechanism is completely finished, resulting in low efficiency. Summary of the Invention

[0005] To help improve the assembly efficiency, the present invention provides a hot-pressing built-in automatic assembly line for plastic products.

[0006] A hot-pressing built-in automatic assembly line for plastic products provided by the present invention adopts the following technical solutions:

[0007] A hot-pressing built-in automatic assembly line for plastic products includes a machine body, an assembly production line, and an accessory transfer mechanism. A plurality of the assembly production lines are horizontally arranged at intervals on the machine body. Each assembly production line includes a conveying mechanism, a hot-melting mechanism, and an accessory feeding mechanism. A plurality of the accessory feeding mechanisms are provided, and the hot-melting mechanism is located between any two adjacent accessory feeding mechanisms. The hot-melting mechanism is used to hot-press the accessories that have been attached to the product or to hot-melt the position where the accessories to be attached are located.

[0008] There is an installation gap between the adjacent assembly lines. The auxiliary material transfer mechanism is arranged on the machine body and located in the installation gap. The auxiliary material transfer mechanism corresponds to the auxiliary material feeding mechanism on the adjacent assembly line one by one. The auxiliary material transfer mechanism is used to transfer and attach the auxiliary materials on the auxiliary material feeding mechanism of the adjacent assembly line on either side to the surface of the product on the corresponding conveyor mechanism.

[0009] Preferably, the auxiliary material transfer mechanism includes a multi-axis robot arranged on the machine body, a mounting frame arranged at the bottom of the telescopic end of the multi-axis robot, and a plurality of auxiliary material suction components arranged on the mounting frame. The auxiliary material suction components are used to suck the auxiliary materials on the auxiliary material feeding mechanism of the adjacent assembly line on either side.

[0010] Preferably, each auxiliary material suction component includes a lifting frame slidably arranged on the mounting frame, a suction nozzle arranged on the lifting frame, and a lifting member arranged on the mounting frame. The lifting frame is slidably arranged in the vertical direction. The suction nozzle is used to be connected with external negative pressure through a pipeline. The lifting member is used to drive the lifting frame to slide.

[0011] Preferably, a lower pressing plate is slidably arranged on the mounting frame. The lower pressing plate is slidably arranged in the vertical direction. A driving source for driving the lower pressing plate to slide is arranged on the mounting frame. The lower pressing plate includes a vertical section slidably connected to the mounting frame and a horizontal section arranged at the lower end of the vertical section. The horizontal section is located on the side of the vertical section close to the mounting frame. The horizontal section is used to press the metal strip-shaped auxiliary materials on the notebook shell product. A bending and fitting component is arranged on the vertical section. The bending and fitting component is used to push the end of the metal strip-shaped auxiliary material that is upturned by the downward pressing of the horizontal section on the notebook shell product and bend and fit the upturned end of the metal strip-shaped auxiliary material at the position of the convex structure on the notebook shell product.

[0012] Preferably, the bending and fitting component includes a sliding rod slidably arranged on the vertical section, a flattening block slidably sleeved on the sliding rod, an elastic member arranged on the sliding rod, and a horizontal moving member arranged on the vertical section. The sliding rod is located on the side of the vertical section close to the horizontal section. The sliding direction of the sliding rod is perpendicular to the plane where the vertical section is located. The flattening block is slidably arranged in the vertical direction. An opening for the flattening block to move in or out is formed on the vertical section. The surface of the flattening block close to the opening is an arc surface. The distance from the arc surface to the horizontal section decreases towards the direction close to the mounting frame. The arc surface is used to slidably abut against the upper edge of the convex structure on the notebook shell product. The elastic member is used to drive the flattening block to reset. The horizontal moving member is used to drive the sliding rod to slide.

[0013] Preferably, the elastic member includes a reset spring for driving the flattening block to reset. The reset spring is sleeved on the sliding rod. One end of the reset spring is arranged on the sliding rod, and the other end is arranged on the flattening block.

[0014] Preferably, the horizontal moving member includes a rodless cylinder disposed on the vertical section, and the sliding rod is connected to the moving end of the rodless cylinder.

[0015] Preferably, the distance from the bottom wall of the opening to the lower surface of the horizontal section is less than the height of the convex structure on the notebook housing product. A groove is formed in the bottom wall of the opening, and a limiting piece is slidably disposed in the groove. The limiting piece is slidably arranged in the vertical direction, and a sliding assembly for adjusting the sliding of the limiting piece is arranged in the groove.

[0016] Preferably, the sliding assembly includes a pushing spring disposed in the groove and a pulling member disposed on the sliding rod. One end of the pushing spring away from the groove is disposed on the limiting piece. The pushing spring is used to push the limiting piece to slide in a direction away from the groove. When the pulling member is used to make the sliding rod slide in a direction close to the vertical section, the pulling member pulls the limiting piece to move in a direction close to the groove.

[0017] Preferably, the pulling member includes an elastic cord. One end of the elastic cord is disposed on the limiting piece, and the other end passes through the vertical section and is connected to the sliding rod. The elastic force of the elastic cord is greater than the elastic force of the pushing spring.

[0018] In summary, the present invention includes the following beneficial technical effects:

[0019] During use, products of different specifications are placed on the conveying mechanisms of different assembly lines. The auxiliary materials on the auxiliary material feeding mechanisms in adjacent assembly lines are attached to the surfaces of the corresponding products on the conveying mechanisms through the auxiliary material transfer mechanism. Then, the products are conveyed to the hot melting mechanism by the conveying mechanism. The hot melting mechanism hot presses the auxiliary materials already attached to the products and melts the positions of the auxiliary materials to be attached. Next, the conveying mechanism conveys the products to the auxiliary material transfer mechanism at the next material attaching station, and continues to attach the auxiliary materials on the two-side auxiliary material feeding mechanisms to the surfaces of the corresponding products on the conveying mechanism through the auxiliary material transfer mechanism. Finally, the products are conveyed out through the conveying mechanism; since each auxiliary material transfer mechanism can attach the auxiliary materials to one side of the product and can also attach the auxiliary materials to the product on the other side during the gap time, each auxiliary material transfer mechanism can label and assemble products of different models during processing, realizing the simultaneous processing of products of different models, thereby helping to improve the assembly efficiency; at the same time, by arranging the hot melting mechanism between any adjacent auxiliary material feeding mechanisms in the assembly line, it is possible to attach the auxiliary materials both before and after hot melting, further ensuring the assembly efficiency. Description of the Drawings

[0020] Figure 1 It is a top view of the overall structure of an embodiment of the present invention.

[0021] Figure 2It is a partial structural schematic diagram of an embodiment of the present invention.

[0022] Figure 3 It is an overall structural schematic diagram of the auxiliary material transfer mechanism in an embodiment of the present invention.

[0023] Figure 4 It is an overall structural schematic diagram of the mounting bracket in an embodiment of the present invention.

[0024] Figure 5 It is a partial cross-sectional view of the lower pressing plate in an embodiment of the present invention.

[0025] Figure 6 It is an overall structural schematic diagram of the lower pressing plate in an embodiment of the present invention.

[0026] Figure 7 It is an overall structural schematic diagram of the bent and adhered metal strip-shaped auxiliary material on the notebook shell product in an embodiment of the present invention.

[0027] Explanation of reference numerals: 1, body; 2, assembly line; 201, conveying mechanism; 202, hot melting mechanism; 203, auxiliary material feeding mechanism; 3, installation gap; 4, multi-axis robot; 5, mounting bracket; 6, lifting frame; 7, lower pressing plate; 71, vertical section; 72, horizontal section; 8, notebook shell product; 9, metal strip-shaped auxiliary material; 10, convex structure; 11, sliding rod; 12, flattening block; 13, opening; 14, return spring; 15, rodless cylinder; 16, groove; 17, limiting piece; 18, pushing spring; 19, elastic rope; 20, first driving cylinder; 21, second driving cylinder; 22, support plate; 23, guide block; 24, guide wheel; 25, connecting plate. Detailed implementation manners

[0028] The following is combined with Figures 1 - 7 to further elaborate on the present invention in detail.

[0029] An embodiment of the present invention discloses a hot pressing and built-in automatic assembly line for plastic products. Referring to Figure 1 , the hot pressing and built-in automatic assembly line for plastic products includes a body 1, an assembly line 2, an auxiliary material transfer mechanism and a PLC controller (not shown in the figure). The body 1 is rectangular and is formed by splicing a plurality of cabinets; the assembly line 2 is arranged on the body 1 and a plurality of assembly lines 2 are arranged at intervals in the horizontal direction. The arrangement direction of the plurality of assembly lines 2 is perpendicular to the length direction of the body 1, and each assembly line 2 is linear and the extending direction is parallel to the length direction of the body 1.

[0030] Referring to Figure 1, specifically, each assembly line 2 includes a conveying mechanism 201, a hot melting mechanism 202, and an auxiliary material feeding mechanism 203. The conveying mechanism 201, the hot melting mechanism 202, and the auxiliary material feeding mechanism 203 are all installed on the machine body 1. Among them, the conveying mechanism 201 is used to convey the products, the hot melting mechanism 202 is used to hot press the auxiliary materials already attached to the products or melt the positions where the auxiliary materials are to be attached, and the auxiliary material feeding mechanism 203 is used to provide label auxiliary materials. The hot melting mechanism 202 and the auxiliary material feeding mechanism 203 are arranged along the conveying direction of the conveying mechanism 201. Further, the hot melting mechanism 202 can be arranged in front of the auxiliary material feeding mechanism 203 in the conveying direction, or the hot melting mechanism 202 can be arranged behind the auxiliary material feeding mechanism 203 in the conveying direction. Multiple labeling stations can also be set, and the auxiliary material feeding mechanism 203 corresponds to each labeling station one by one. The hot melting mechanism 202 is located between the auxiliary material feeding mechanisms 203 of any two labeling stations, so as to meet different requirements, and can realize attaching auxiliary materials first and then hot melting and pressing, or hot melting first and then attaching auxiliary materials and pressing, or melting other labeling positions while hot pressing the attached auxiliary materials and then continuing to attach auxiliary materials and pressing. In the present invention, multiple labeling stations are set, multiple groups of auxiliary material feeding mechanisms 203 are set, the auxiliary material feeding mechanisms 203 correspond to each labeling station one by one, and the hot melting mechanism 202 is located between any two groups of auxiliary material feeding mechanisms 203.

[0031] Refer to Figure 1 And Figure 2 , there is an installation gap 3 between adjacent assembly lines 2. The auxiliary material transfer mechanism is fixedly arranged on the machine body 1 and is located in the installation gap 3. The auxiliary material transfer mechanism in each installation gap 3 corresponds to the auxiliary material feeding mechanism 203 in the adjacent assembly line 2 on either side one by one. The auxiliary material transfer mechanism is used to transfer and attach the auxiliary materials on the auxiliary material feeding mechanism 203 in the adjacent assembly line 2 on either side to the surface of the products on the corresponding conveying mechanism 201. Among them, the conveying mechanism 201, the hot melting mechanism 202, the auxiliary material transfer mechanism, and the auxiliary material feeding mechanism 203 are all electrically connected to the PLC controller, which helps to realize automated processing.

[0032] In use, products of different specifications are placed on the conveying mechanism 201 of different assembly lines 2. The conveying mechanism 201 conveys the corresponding products to the first material pasting station. The auxiliary material transfer mechanism alternately pastes the auxiliary materials on the auxiliary material feeding mechanism 203 in adjacent assembly lines 2 onto the surface of the products on the corresponding conveying mechanism 201. Then, the conveying mechanism 201 conveys the corresponding products to the hot melting mechanism 202. The hot melting mechanism 202 hot presses the pasted auxiliary materials on the products and melts the positions for the to-be-pasted auxiliary materials. Next, the conveying mechanism 201 conveys the products to the auxiliary material transfer mechanism at the next material pasting station, and continues to alternately paste the auxiliary materials on the auxiliary material feeding mechanism 203 in adjacent assembly lines 2 onto the surface of the products on the corresponding conveying mechanism 201. Finally, the products are conveyed out through the conveying mechanism 201; since each auxiliary material transfer mechanism can paste auxiliary materials on the products on one side and can also paste auxiliary materials on the products on the other side during the gap time, each auxiliary material transfer mechanism can label and assemble products of different models during processing, realizing the simultaneous processing of products of different models, thereby helping to improve the assembly efficiency; at the same time, by arranging the hot melting mechanism 202 inside the linear assembly line 2 and between any adjacent auxiliary material feeding mechanisms 203, it is possible to paste the auxiliary materials both before and after hot melting, further ensuring the assembly efficiency.

[0033] Refer to Figure 1 and Figure 2 , in the embodiment of the present invention, two assembly lines 2 are provided on the machine body 1, which helps to process two different models of products simultaneously and improve the assembly efficiency; in other embodiments, the number of assembly lines 2 can be set as required.

[0034] Refer to Figure 1 and Figure 2 , wherein, each conveying mechanism 201 includes a plurality of conveyor belts installed on the machine body 1. The plurality of conveyor belts are arranged in sequence along the length direction of the machine body 1. The conveying direction of the conveyor belts is parallel to the arrangement direction of the plurality of conveyor belts. The plurality of conveyor belts have a feeding end and a discharging end, and each conveyor belt is electrically connected to the PLC controller. By placing the products on the conveyor belt at the feeding end and conveying them through the plurality of conveyor belts, it helps to convey the products to positions such as the auxiliary material transfer mechanism and the hot melting mechanism 202. Finally, the products with the auxiliary material assembly completed are obtained on the conveyor belt at the discharging end. In other embodiments, the conveying mechanism 201 can also use only one conveyor belt, which can also achieve the conveying of products.

[0035] Refer to Figure 1, for facilitating the hot pressing of the auxiliary materials already attached to the product and the hot melting of the positions for the auxiliary materials to be attached, the hot melting mechanism 202 is fixedly installed on the machine body 1, and the conveying mechanism 201 passes through the hot melting mechanism 202. Specifically, the hot melting mechanism 202 is the same as that in the related art and belongs to the prior art, so it will not be elaborated here. During use, the hot melting mechanism 202 performs hot pressing on the auxiliary materials already attached to the surface of the product on the conveying mechanism 201 and hot melts the positions for the auxiliary materials to be attached.

[0036] Refer to Figure 1 and Figure 2 , for facilitating the provision of auxiliary material labels, the auxiliary material feeding mechanism 203 includes a feeder fixedly installed on the machine body 1. There are multiple feeders in the auxiliary material feeding mechanism 203 at each material pasting station. The multiple feeders are arranged in sequence along the length direction of the machine body 1, and the feeder is located on the side of the conveying mechanism 201 in the corresponding assembly line 2 away from the auxiliary material transfer mechanism, so that the multiple feeders are respectively located on both sides of the machine body 1. The feeder is electrically connected to the PLC controller. The feeder can select different models and sizes according to needs, which helps to provide different auxiliary materials according to needs and improve the processing efficiency. The feeder, also called a feeder or a feeder, is mainly used to supply auxiliary materials to the auxiliary material transfer mechanism for material suction; its principle and specific structure belong to the prior art and will not be elaborated here.

[0037] Refer to Figure 2 and Figure 3 , for facilitating the attachment of the auxiliary material to the required position of the product, each auxiliary material transfer mechanism includes a multi-axis robot 4, a mounting frame 5, and an auxiliary material suction component. The multi-axis robot 4 is fixedly installed on the machine body 1 and is located in the installation gap 3. The multi-axis robot 4 is aligned with the corresponding auxiliary material feeding mechanism 203. Both the multi-axis robot 4 and the auxiliary material suction component are electrically connected to the PLC controller. In the embodiment of the present invention, the multi-axis robot 4 uses a four-axis robot. The arm part of the four-axis robot can move freely in a geometric plane. The first two joints of the four-axis robot can rotate freely left and right on the horizontal plane. The third joint consists of a metal rod called a feather and a gripper. This metal rod can move up and down or rotate around its vertical axis in the vertical plane. The four-axis robot belongs to the prior art in the labeling field, and its principle and specific structure will not be elaborated here. In other embodiments, the multi-axis robot 4 can also use a six-axis robot.

[0038] Refer to Figure 3 and Figure 4 , the mounting frame 5 is fixed at the bottom of the telescopic end of the multi-axis robot 4. The mounting frame 5 can move in all directions under the action of the multi-axis robot 4. The mounting frame 5 is a hollow frame, which helps to reduce the weight; multiple auxiliary material suction components are arranged on the mounting frame 5, and the auxiliary material suction components are used to suck the auxiliary materials on the auxiliary material feeding mechanism 203 in the adjacent assembly line 2.

[0039] Referring to Figure 3 and Figure 4 Figure 4 , for facilitating the absorption of the auxiliary material labels on the auxiliary material feeding mechanism 203, each auxiliary material absorption component includes a lifting frame 6, an adsorption nozzle (not labeled in the figure), and a lifting member. The lifting frame 6 is slidably connected to the mounting frame 5, and the lifting frame 6 is slidably arranged in the vertical direction. The adsorption nozzle is fixedly installed on the corresponding lifting frame 6, and the adsorption nozzle is electrically connected to the PLC controller. Multiple adsorption nozzles can be arranged on the lifting frame 6 as needed. The adsorption nozzle is connected to the external negative pressure through a pipeline. The lifting member is arranged on the mounting frame 5, and the lifting member is used to drive the lifting frame 6 to slide. The structure of the lifting frame 6 in different auxiliary material absorption components can be set according to the shape of the auxiliary material.

[0040] Referring to Figure 3 and Figure 4 Figure 4 , for facilitating the sliding of the lifting frame 6, the lifting member includes a first driving cylinder 20 fixedly installed on the mounting frame 5. The first driving cylinder 20 extends downward, and the lifting frame 6 is fixedly connected to the piston rod of the first driving cylinder 20. Further, the lifting frame 6 is slidably matched with the cylinder body position of the corresponding first driving cylinder 20 to guide the sliding of the lifting frame 6. The first driving cylinder 20 is electrically connected to the PLC controller. In other embodiments, the lifting member can also be replaced with an electric cylinder, an electric push rod, etc.

[0041] When it is necessary to absorb the auxiliary material, the multi-axis robot 4 moves the mounting frame 5 to the required position, aligns the required adsorption nozzle with the auxiliary material below, then drives the lifting frame 6 to move downward through the corresponding lifting member, so that the adsorption nozzle adsorbs the auxiliary material downward through negative pressure. Then, the lifting member drives the lifting frame 6 and the adsorption nozzle to drive the auxiliary material to move upward. The multi-axis robot 4 moves the mounting frame 5 to the pasting position, and then the lifting member drives the lifting frame 6 to move downward so that the auxiliary material on the adsorption nozzle is pasted on the corresponding position of the product, completing the material absorption and pasting operations.

[0042] Referring to Figure 7 Figure 7 , currently, the laptop shell product 8 usually has a raised structure 10. When the linear metal strip-shaped auxiliary material 9 is attached to the surface of the laptop shell product 8, it needs to extend to the position of the raised structure 10 and then be bent and flattened. The metal strip-shaped auxiliary material 9 is mostly made of aluminum alloy, titanium alloy, etc.

[0043] Referring to Figure 4 and Figure 5To complete this operation, a lower pressing plate 7 is slidably provided on the mounting frame 5, and the lower pressing plate 7 is slidably provided in the vertical direction, wherein the lower pressing plate 7 is located at the side of the mounting frame 5, and the specific position can be designed as needed. A driving source for driving the lower pressing plate 7 to slide is provided on the mounting frame 5, and specifically, the driving source includes a second driving cylinder 21, and the second driving cylinder 21 is fixedly installed on the side wall of the mounting frame 5, and the extension direction of the second driving cylinder 21 is set downward, and a connecting plate 25 is fixed on the top of the lower pressing plate 7, and the connecting plate 25 is fixed to the piston rod of the second driving cylinder 21, and the second driving cylinder 21 is electrically connected to the PLC controller. In other embodiments, the second driving cylinder 21 can be replaced by an electric cylinder, an electric push rod, etc., and the use of a driving source such as an electric cylinder, an electric push rod, etc. can also achieve the purpose of driving the lower pressing plate 7 to move.

[0044] Reference Figure 4 , Figure 5 and Figure 7 The lower pressing plate 7 is L-shaped. Specifically, the lower pressing plate 7 includes a vertical section 71 and a horizontal section 72. The vertical section 71 is fixed to the bottom wall of the connecting plate 25 and is located on the side of the connecting plate 25 away from the mounting frame 5; the horizontal section 72 is integrally formed at the lower end of the vertical section 71, and the horizontal section 72 is located on the side of the vertical section 71 close to the mounting frame 5. The horizontal section 72 is used to press the metal strip auxiliary material 9 on the notebook shell product 8, and the vertical section 71 is used to abut against the side wall of the raised structure 10, so as to flatten the metal strip auxiliary material 9 on the surface of the notebook shell product 8 while making the metal strip auxiliary material 9 vertically tilted and abut against the side wall of the raised structure 10; a bending and fitting component is provided on the vertical section 71, and the bending and fitting component is used to push the horizontal section 72 on the notebook shell product 8 to press down the tilted end of the metal strip auxiliary material 9 and bend the tilted end of the metal strip auxiliary material 9 to fit the surface of the raised structure 10 on the notebook shell product 8.

[0045] When in use, the linear metal strip auxiliary material 9 is placed on the surface of the notebook shell product 8 on the conveying mechanism 201 through the auxiliary material suction component on the multi-axis robot 4, and then the multi-axis robot 4 drives the mounting frame 5 to move so that the horizontal section 72 of the lower pressing plate 7 is aligned with the position of the metal strip auxiliary material 9 close to the protruding structure 10, and the horizontal section 72 is misaligned with the protruding structure 10, and the side of the vertical section 71 away from the mounting frame 5 is close to the side of the protruding structure 10 close to the metal strip auxiliary material 9, leaving a gap of the thickness of the metal strip auxiliary material 9, and then the second driving cylinder 21 The connecting plate 25 is driven to move the lower pressure plate 7 downward. At this time, the horizontal section 72 of the lower pressure plate 7 flattens the metal strip auxiliary material 9 on the surface of the notebook shell product 8. Under the action of the vertical section 71, the end of the metal strip auxiliary material 9 is vertically bent and fits against the side wall of the raised structure 10. Then, the vertically raised end of the metal strip auxiliary material 9 is pushed to be bent and fit against the surface of the raised structure 10 of the notebook shell product 8 through the bending and fitting assembly, thereby realizing the fitting assembly of the linear metal strip auxiliary material 9. Then, the second driving cylinder 21 drives the lower pressure plate 7 to move upward and reset.

[0046] Reference Figure 5 and Figure 7 In order to facilitate the pushing of the vertically raised end of the metal strip auxiliary material 9 to bend and fit on the surface of the raised structure 10 of the notebook shell product 8, the widths of the vertical section 71 and the horizontal section 72 are both greater than the width of the linear metal strip auxiliary material 9. A support plate 22 is fixed to a side of the vertical section 71 close to the horizontal section 72. The bending and fitting assembly includes a sliding rod 11, a flattening block 12, an elastic member and a horizontal moving member. The sliding rod 11 is slidably arranged on the support plate 22. The sliding direction of the sliding rod 11 is perpendicular to the plane where the vertical section 71 is located. The sliding rod 11 is located above the horizontal section 72. Specifically, a guide block 23 is fixedly sleeved on the sliding rod 11, and the guide block 23 slides with the support plate 22.

[0047] Reference Figure 4 , Figure 5 and Figure 7 The flattening block 12 is slidably sleeved on the sliding rod 11, and the flattening block 12 is slidably arranged in the vertical direction. The flattening block 12 is located at one end of the sliding rod 11 close to the horizontal section 72, and the sliding rod 11 is located on the side of the flattening block 12 away from the vertical section 71, so that the flattening block 12 extends toward the direction of the sliding rod 11 close to the vertical section 71; an opening 13 is provided on the vertical section 71 for the flattening block 12 to move in or out, and a side of the flattening block 12 close to the opening 13 is an arc surface, and the distance from the arc surface to the horizontal section 72 decreases toward the direction close to the mounting frame 5, and the arc surface is used to slide and abut against the upper edge of the raised structure 10 on the notebook shell product 8, and an elastic member is arranged on the sliding rod 11, and the elastic member is used to drive the flattening block 12 to reset, and a horizontal moving member is arranged on the support plate 22, and the horizontal moving member is used to drive the guide block 23 and the sliding rod 11 to slide.

[0048] Reference Figure 5 and Figure 6 For the convenience of driving the flattening block 12 to reset, the elastic member includes a return spring 14. The return spring 14 is sleeved on the sliding rod 11. The return spring 14 is located on the side of the flattening block 12 away from the horizontal section 72. One end of the return spring 14 is fixed on the sliding rod 11, and the other end is fixed on the flattening block 12. The elastic force of the return spring 14 is much greater than the acting force required for the deformation of the metal strip-shaped auxiliary material 9.

[0049] Reference Figure 5 and Figure 6 For the convenience of driving the guide block 23 and the sliding rod 11 to slide, the horizontal moving member includes a rodless cylinder 15 fixedly installed on the support plate 22. The guide block 23 on the sliding rod 11 is fixedly connected to the moving end of the rodless cylinder 15. The rodless cylinder 15 is electrically connected to the PLC controller.

[0050] When the lower pressing plate 7 moves downward to press the horizontal section 72 against the metal strip-shaped auxiliary material 9, the flattening block 12 is located above the horizontal section 72 and on the side of the vertical section 71 close to the support plate 22, so that the flattening block 12 does not affect the horizontal section 72 pressing the metal strip-shaped auxiliary material 9 against the surface of the notebook shell product 8; after the horizontal section 72 presses the metal strip-shaped auxiliary material 9 tightly, the rodless cylinder 15 is started. The rodless cylinder 15 drives the guide block 23 and the sliding rod 11 to move towards the direction close to the vertical section 71. The sliding rod 11 drives the flattening block 12 to move synchronously. Then, the arc surface end of the flattening block 12 gradually moves out of the opening 13 and abuts against the raised position of the metal strip-shaped auxiliary material 9. As the guide block 23 and the sliding rod 11 continue to approach the vertical section 71, the arc surface of the flattening block 12 abutting against the raised position of the metal strip-shaped auxiliary material 9 moves towards the surface of the raised structure 10. Under the abutment of the upper edge of the raised structure 10, the flattening block 12 will slide relative to the metal strip-shaped auxiliary material 9 separated by the upper edge position of the raised structure 10, causing the flattening block 12 to slide relative to the sliding rod 11. The abutting flattening block 12 moves upward relative to the sliding rod 11. Then, the lower plane of the flattening block 12 presses the metal strip-shaped auxiliary material 9 to fit along the upper surface of the raised structure 10, thereby realizing the bending and fitting of the metal strip-shaped auxiliary material 9. Then, the second driving cylinder 21 drives the lower pressing plate 7 to move upward, and the rodless cylinder 15 drives the guide block 23 and the sliding rod 11 to move away from the vertical section 71 for resetting, so that the abutting force received by the flattening block 12 is reduced, and the return spring 14 drives the flattening block 12 to reset until the flattening block 12 completely moves to the side of the vertical section 71 close to the horizontal section 72.

[0051] Moreover, since the arc surface of the flattening block 12 can slide and abut against the upper edges of raised structures 10 with different thicknesses, it can be applied to raised structures 10 with different thicknesses on notebook shell products 8 of different specifications, facilitating the pasting of materials on the products on both sides of the assembly line 2.

[0052] ReferenceFigure 6 And Figure 7 , to ensure that the flattening block 12 can bend and fit the metal strip auxiliary material 9 on the surfaces of the notebook shell product 8 and the convex structure 10, the distance from the bottom wall of the opening 13 to the lower surface of the horizontal section 72 is less than the height of the convex structure 10 on the notebook shell product 8, so that the arc surface of the flattening block 12 can slide and abut against the upper edges of different convex structures 10, and is not easily affected by the bottom wall of the opening 13 on the vertical section 71.

[0053] Refer to Figure 5 And Figure 6 , a groove 16 is provided on the bottom wall of the opening 13, a limiting piece 17 is slidably inserted in the groove 16, the limiting piece 17 is slidably arranged in the vertical direction, the height of the limiting piece 17 is less than the depth of the groove 16, and a sliding component for adjusting the sliding of the limiting piece 17 is arranged in the groove 16. Specifically, the sliding component includes a pushing spring 18 and a pulling member. The pushing spring 18 is located in the groove 16, the extending direction of the pushing spring 18 is parallel to the sliding direction of the limiting piece 17, one end of the pushing spring 18 is fixed on the bottom wall of the groove 16, and the other end is fixed on the bottom wall of the limiting piece 17. The pushing spring 18 is used to push the limiting piece 17 to slide in a direction away from the groove 16. The pulling member is arranged on the guiding block 23 outside the sliding rod 11, and the pulling member is used to pull the limiting piece 17 to move in a direction close to the groove 16 when the sliding rod 11 slides in a direction close to the vertical section 71.

[0054] Refer to Figure 5 And Figure 6 , to facilitate pulling the limiting piece 17 to move in a direction close to the groove 16 when the sliding rod 11 slides in a direction close to the vertical section 71, the pulling member includes an elastic cord 19. One end of the elastic cord 19 is fixed on the bottom wall of the limiting piece 17, and the other end passes through the lower end of the vertical section 71 and is fixed to the guiding block 23 on the sliding rod 11. The elastic force of the elastic cord 19 is greater than the elastic force of the pushing spring 18. To guide the elastic cord 19, guiding wheels 24 are installed on both the horizontal section 72 and the support plate 22. The guiding wheels 24 are all located on the sides of the horizontal section 72 and the support plate 22 away from the vertical section 71. The elastic cord 19 between the limiting piece 17 and the guiding block 23 slides and laps on the two guiding wheels 24. When the sliding rod 11 is in the initial state on the side of the support plate 22 away from the vertical section 71, the flattening block 12 is on the side of the vertical section 71 close to the support plate 22, and the elastic cord 19 is in a natural tension state. At this time, the elastic cord 19 does not have a pulling force on the limiting piece 17.

[0055] When the lower pressing plate 7 moves downward to press the metal strip-shaped auxiliary material 9 on the notebook shell product 8 with the horizontal section 72, at this time, the sliding rod 11 is in the initial state on the side of the support plate 22 away from the vertical section 71, so that the limiting piece 17 extends out of the groove 16. During the downward pressing process of the horizontal section 72, the limiting piece 17 can limit the warped metal strip-shaped auxiliary material 9 with the side wall of the convex structure 10, so that the warped position of the end of the metal strip-shaped auxiliary material 9 is kept vertical and not easily bent into the opening 13, thus facilitating the subsequent flattening block 12 to bend and flatten the metal strip-shaped auxiliary material 9 on the surface of the convex structure 10.

[0056] After the horizontal section 72 flattens the metal strip-shaped auxiliary material 9, the sliding rod 11 moves towards the direction close to the vertical section 71. Since the elastic rope 19 is in a tensioned state and the elastic force of the elastic rope 19 is greater than the thrust of the pushing spring 18, therefore, the guiding block 23 pulls the limiting piece 17 towards the direction close to the groove 16 through the elastic rope 19, so that the elastic rope 19 will not be stretched, and the limiting piece 17 gradually exposes the opening 13, providing space for the flattening block 12 to move towards the opening 13, so as to facilitate the sliding contact between the arc surface of the flattening block 12 and the upper edge of the convex structure 10; as the sliding rod 11 continues to move, when the limiting piece 17 completely moves into the groove 16, the guiding block 23 will continue to pull the elastic rope 19, so that the elastic rope 19 is stretched to adapt to the sliding of the sliding rod 11.

[0057] The implementation principle of the embodiment of the present invention is as follows: during use, products of two specifications are respectively placed on the conveying mechanisms 201 of the two assembly lines 2. The corresponding notebook shell products 8 are conveyed to the first material pasting station through the conveyor belts of the conveying mechanisms 201. Then, the multi-axis robot 4 at the corresponding material pasting station moves the mounting frame 5 to the required position, aligns the required suction nozzle with the auxiliary material below, and then drives the lifting frame 6 to move downward through the corresponding lifting member, so that the suction nozzle sucks the auxiliary material downward. Then, the lifting member drives the lifting frame 6 and the suction nozzle to drive the auxiliary material to move upward. The multi-axis robot 4 moves the mounting frame 5 to the material pasting position, and drives the lifting frame 6 to move downward through the lifting member so that the auxiliary material on the suction nozzle is pasted at the corresponding position of the product, completing the material pasting operation. This step can be repeated multiple times as needed to be able to attach multiple identical or different auxiliary materials to the product surface. Since the auxiliary materials on different specification products are mostly similar and the differences are not too large, the multi-axis robot 4 can drive the auxiliary material suction assembly to alternately label the products on the two sides of the assembly line 2.

[0058] Then, the conveyor belt of the conveying mechanism 201 conveys the corresponding product to the hot melting mechanism 202. The hot melting mechanism 202 performs hot pressing on the position where the auxiliary material has been attached to the product and hot melting on the position where the auxiliary material is to be attached. Then, the conveyor belt of the conveying mechanism 201 conveys the product to the auxiliary material transfer mechanism at the next material pasting station, and continues to perform labeling through the cooperation of the multi-axis robot 4 at the corresponding material pasting station and the auxiliary material suction assembly.

[0059] When the linear metal strip auxiliary material 9 needs to be bent and attached, the multi-axis robot 4 corresponding to the material placement station drives the mounting frame 5 to move, first sucks and places the linear metal strip auxiliary material 9 on the product surface, and then the mounting frame 5 moves and rotates, so that the horizontal section 72 of the lower pressing plate 7 is aligned with the position of the metal strip auxiliary material 9 close to the convex structure 10, and the horizontal section 72 is misaligned with the convex structure 10. The side of the vertical section 71 away from the mounting frame 5 approaches the side of the convex structure 10 close to the metal strip auxiliary material 9, leaving a gap equal to the thickness of the metal strip auxiliary material 9. At this time, the sliding rod 11 is located at the initial position on the side of the support plate 22 away from the vertical section 71. Then, the second driving cylinder 21 drives the connecting plate 25 to drive the lower pressing plate 7 to move downward. At this time, the horizontal section 72 of the lower pressing plate 7 presses the metal strip auxiliary material 9 flat on the surface of the notebook shell product 8. Under the action of the vertical section 71, the limiting piece 17 and the convex structure 10, the end of the metal strip auxiliary material 9 is vertically upturned and attached to the side wall of the convex structure 10.

[0060] Then, the rodless cylinder 15 is started. The rodless cylinder 15 drives the guide block 23 and the sliding rod 11 to move towards the direction close to the vertical section 71. The sliding rod 11 drives the flattening block 12 to move synchronously. The guide block 23 pulls the limiting piece 17 towards the direction close to the groove 16 through the elastic cord 19. The limiting piece 17 gradually exposes the opening 13, providing space for the flattening block 12 to move towards the opening 13. Then, the arc-shaped end of the flattening block 12 gradually moves out of the opening 13 and abuts against the upturned position of the metal strip auxiliary material 9. As the guide block 23 and the sliding rod 11 continue to approach the vertical section 71, the arc surface of the flattening block 12 abuts against the upturned position of the metal strip auxiliary material 9 and moves towards the surface of the convex structure 10. Under the abutment of the upper edge of the convex structure 10, the flattening block 12 will slide relatively with the metal strip auxiliary material 9 separated from the upper edge position of the convex structure 10. The abutting flattening block 12 moves upward relative to the sliding rod 11. Then, the lower plane of the flattening block 12 presses the metal strip auxiliary material 9 to fit along the upper surface of the convex structure 10, thereby realizing the bending and attachment of the metal strip auxiliary material 9.

[0061] Then, the second driving cylinder 21 drives the lower pressing plate 7 to move upward. The rodless cylinder 15 drives the guide block 23 and the sliding rod 11 to move away from the vertical section 71 for resetting, reducing the abutting force received by the flattening block 12. The return spring 14 drives the flattening block 12 to reset. The pulling force of the elastic cord 19 on the limiting piece 17 gradually decreases. Under the thrust of the pushing spring 18, it moves towards the direction away from the groove 16 for resetting until the sliding rod 11 moves to the initial position, and the flattening block 12 completely moves to the side of the vertical section 71 close to the horizontal section 72.

[0062] After the assembly of the product accessories is completed, the product is conveyed out through the conveyor belt of the conveying mechanism 201; since each accessory transfer mechanism can not only attach accessories to the product on one side but also attach accessories to the product on the other side during the gap time, each accessory transfer mechanism can label and assemble products of different models during processing, realizing the simultaneous processing of products of different models, which helps to improve the assembly efficiency. At the same time, by arranging the hot melt mechanism 202 inside the linear assembly line 2 and between any adjacent accessory feeding mechanisms 203, it is possible to attach accessories before and after hot melting, further ensuring the assembly efficiency.

[0063] The above are all preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. A hot pressing built-in automatic assembly line for plastic products, characterized in that: It includes a machine body (1), an assembly line (2) and an auxiliary material transfer mechanism. A plurality of the assembly lines (2) are arranged on the machine body (1) at intervals in the horizontal direction. Each of the assembly lines (2) includes a conveying mechanism (201), a hot melting mechanism (202) and an auxiliary material feeding mechanism (203). A plurality of the auxiliary material feeding mechanisms (203) are provided. The hot melting mechanism (202) is located between any two adjacent auxiliary material feeding mechanisms (203). The hot melting mechanism (202) is used for hot pressing the auxiliary materials already attached to the product or hot melting the positions of the auxiliary materials to be attached. There is an installation gap (3) between adjacent assembly lines (2). The auxiliary material transfer mechanism is arranged on the machine body (1) and located in the installation gap (3). The auxiliary material transfer mechanism corresponds to the auxiliary material feeding mechanisms (203) on the adjacent assembly lines (2) one by one. The auxiliary material transfer mechanism is used for transferring and attaching the auxiliary materials on the auxiliary material feeding mechanisms (203) in the adjacent assembly line (2) on any side to the surface of the product on the corresponding conveying mechanism (201). The auxiliary material transfer mechanism includes a multi-axis robot (4) arranged on the machine body (1), a mounting frame (5) arranged at the bottom of the telescopic end of the multi-axis robot (4), and a plurality of auxiliary material suction components arranged on the mounting frame (5). A lower pressing plate (7) is slidably arranged on the mounting frame (5). The lower pressing plate (7) is slidably arranged in the vertical direction. A driving source for driving the lower pressing plate (7) to slide is arranged on the mounting frame (5). The lower pressing plate (7) includes a vertical section (71) slidably connected to the mounting frame (5) and a horizontal section (72) arranged at the lower end of the vertical section (71). A bending and attaching component is arranged on the vertical section (71). The bending and fitting assembly includes a sliding rod (11) slidably arranged on the vertical section (71), a flattening block (12) slidably sleeved on the sliding rod (11), an elastic member arranged on the sliding rod (11), and a horizontal moving member arranged on the vertical section (71). The sliding rod (11) is located on the side of the vertical section (71) close to the horizontal section (72). The sliding direction of the sliding rod (11) is perpendicular to the plane where the vertical section (71) is located. The flattening block (12) is slidably arranged in the vertical direction. An opening (13) for the flattening block (12) to move in or out is formed on the vertical section (71). The surface of the flattening block (12) close to the opening (13) is an arc surface. The distance from the arc surface to the horizontal section (72) decreases towards the direction close to the mounting frame (5). The arc surface is used for slidingly abutting against the upper edge of the convex structure (10) on the notebook shell product (8). The elastic member is used to drive the flattening block (12) to reset. The horizontal moving member is used to drive the sliding rod (11) to slide. The distance from the bottom wall of the opening (13) to the lower surface of the horizontal section (72) is less than the height of the convex structure (10) on the notebook shell product (8). A groove (16) is formed on the bottom wall of the opening (13). A limiting piece (17) is slidably inserted into the groove (16). The limiting piece (17) is slidably arranged in the vertical direction. The height of the limiting piece (17) is less than the depth of the groove (16). A sliding assembly for adjusting the sliding of the limiting piece (17) is arranged in the groove (16).

2. The hot pressing built-in automatic assembly line for a plastic product according to claim 1, characterized in that: The auxiliary material suction assembly is used to suck the auxiliary materials on the auxiliary material feeding mechanism (203) in the adjacent assembly line (2) on any side.

3. The hot pressing built-in automatic assembly line for a plastic product according to claim 2, characterized in that: Each auxiliary material suction assembly includes a lifting frame (6) slidably arranged on the mounting frame (5), a suction nozzle arranged on the lifting frame (6), and a lifting member arranged on the mounting frame (5). The lifting frame (6) is slidably arranged in the vertical direction. The suction nozzle is used to be connected with external negative pressure through a pipeline. The lifting member is used to drive the lifting frame (6) to slide.

4. The hot pressing built-in automatic assembly line for a plastic product according to claim 1, wherein: The horizontal section (72) is located on the side of the vertical section (71) close to the mounting frame (5). The horizontal section (72) is used to press the metal strip-shaped auxiliary material (9) on the notebook shell product (8). The bending and fitting assembly is used to push the end of the metal strip-shaped auxiliary material (9) that is upturned under the pressing of the horizontal section (72) on the notebook shell product (8) and bend and fit the upturned end of the metal strip-shaped auxiliary material (9) at the position of the convex structure (10) on the notebook shell product (8).

5. A hot pressing built-in automatic assembly line for a plastic product according to claim 1, characterized in that: The elastic member includes a return spring (14) for driving the flattening block (12) to reset. The return spring (14) is sleeved on the sliding rod (11). One end of the return spring (14) is arranged on the sliding rod (11), and the other end is arranged on the flattening block (12).

6. The hot pressing and built-in automatic assembly line for a plastic product according to claim 1, wherein: The horizontal moving member includes a rodless cylinder (15) arranged on the vertical section (71). The sliding rod (11) is connected to the moving end of the rodless cylinder (15).

7. A hot pressing built-in automatic assembly line for a plastic product according to claim 1, characterized in that: The sliding assembly includes a pushing spring (18) disposed in the groove (16) and a pulling member disposed on the sliding rod (11). One end of the pushing spring (18) away from the groove (16) is disposed on the limiting piece (17). The pushing spring (18) is used to push the limiting piece (17) to slide in a direction away from the groove (16). When the pulling member is used to make the sliding rod (11) slide in a direction close to the vertical section (71), the pulling member pulls the limiting piece (17) to move in a direction close to the groove (16).

8. The hot pressing built-in automatic assembly line for a plastic product according to claim 7, characterized in that: The pulling member includes an elastic cord (19). One end of the elastic cord (19) is disposed on the limiting piece (17), and the other end passes through the vertical section (71) and is connected to the sliding rod (11). The elastic force of the elastic cord (19) is greater than the elastic force of the pushing spring (18).

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