A cup gluing device

Abstract

The cup gluing device can process in batches in the processes of inner wall gluing and bottom gluing, has high automation, can save manpower and material resources, and improves processing efficiency. The cup gluing device comprises a cup inner wall gluing mechanism, a transferring mechanism and a cup bottom gluing mechanism which cooperate with each other. The gluing mechanism is installed on a gluing box body with an upper opening. A glue supply pipe mechanism which cooperates with the gluing mechanism is also installed on the gluing box body. The glue supply pipe mechanism is connected with an external glue supply system. The gluing mechanism comprises uniformly arranged gluing units. Each gluing unit comprises a cup positioning seat. The bottom of the cup positioning seat is rotationally connected with the base of the gluing box body through a rotating shaft. The bottom of the rotating shaft is power-connected with a rotating drive mechanism. The rotating shaft is driven to rotate by the rotating drive mechanism. A through suction air channel is arranged along the central axis of the cup positioning seat and the rotating shaft. The bottom of the suction air channel is connected with an external suction system.

Description

Technical Field

[0001] This invention relates to the field of disposable cup processing equipment technology, specifically a cup coating device. Background Technology

[0002] Disposable cups made primarily from cornstarch are increasingly popular due to their biodegradability and low environmental pollution. The manufacturing process of these environmentally friendly disposable cups involves coating the inner wall and attaching adhesive to the bottom to ensure waterproofing during use. Currently, these two coating processes cannot be mass-produced and require manual handling for loading and unloading, resulting in significant manpower and material costs and low processing efficiency. Summary of the Invention

[0003] To address the problems of existing disposable cups, such as the inability to mass-produce them, the high labor and material costs, and low processing efficiency, this invention provides a cup adhesive coating device. This device can perform batch processing of the inner wall adhesive coating and cup bottom adhesive bonding processes, while also having a high degree of automation, saving labor and material resources and improving processing efficiency.

[0004] The technical solution is as follows: a cup glue application device, characterized in that it includes a cup inner wall glue application mechanism, a transfer mechanism and a cup bottom glue application mechanism that cooperate with each other;

[0005] The glue application mechanism is mounted on a glue application box with an opening at the top. The glue application box is also equipped with a glue supply pipe mechanism that cooperates with the glue application mechanism. The glue supply pipe mechanism is connected to an external glue supply system. The glue application mechanism includes evenly arranged glue application units. Each glue application unit includes a cup positioning seat. The bottom of the cup positioning seat is rotatably connected to the base of the glue application box via a rotating shaft. The bottom of the rotating shaft is powered by a rotating drive mechanism, which drives the rotating shaft to rotate. A through vacuum suction channel is provided along the central axis of the cup positioning seat and the rotating shaft. The bottom of the suction channel is connected to an external vacuum suction system.

[0006] A further feature is that: the rotary drive mechanism includes a glue-spinning servo motor installed at the bottom of the glue-applying box, a main synchronous pulley is fitted on the outside of the motor shaft of the glue-spinning servo motor, a driven synchronous pulley is fitted on the lower end of the rotary shaft, the driven synchronous pulleys of two adjacent rotary shafts are connected by a synchronous belt, and the main synchronous pulley of the glue-spinning servo motor is also connected to one of the driven synchronous pulleys of the rotary shaft by a synchronous belt.

[0007] The glue supply tube mechanism includes an outer glue tube frame, on which glue inlets and glue outlets are respectively provided. Inside the glue tube frame, there are connected glue tube branches corresponding to each row of cup glue application units. Each glue tube branch has a glue outlet corresponding to the cup positioning seat of each cup glue application unit. Sliding seats are fixedly connected to both sides of the glue tube frame. The outside of the glue application box is provided with a slide rail that slides with the sliding seats. The outside of the glue application box is also provided with a glue tube transfer cylinder connected to the sliding seats.

[0008] The transfer mechanism includes a transfer bracket, which is movably mounted on a vertical mounting base. The vertical mounting base is equipped with a lifting drive mechanism that is poweredly connected to the transfer bracket. The vertical mounting base is movably mounted on a horizontal mounting base, which is equipped with a horizontal drive mechanism that is movably connected to it. The transfer bracket is equipped with a cup transfer unit that cooperates with the cup gluing unit. The cup transfer unit includes a guide rod that is vertically mounted on the transfer bracket. An air suction channel is provided along the inside of the guide rod. The upper end of the guide rod is connected to a vacuum system, and the lower end of the guide rod is connected to a pressure sleeve. The bottom of the transfer bracket is equipped with a gripper cylinder corresponding to the lower end of each row of cup transfer units. The output end of the gripper cylinder is connected to a clamping plate that cooperates with each row of cup transfer units. The clamping plate is equipped with a corresponding gripper at the cup clamping position.

[0009] The lifting drive mechanism includes a lifting servo motor mounted on the upper end of the vertical mounting base. The output shaft of the lifting servo motor is connected to the main synchronous pulley. The vertical mounting base is also provided with a slave synchronous pulley connected to the main and slave synchronous pulleys via a synchronous belt. The slave synchronous pulley is connected to a vertically downward lead screw via a coupling. The lead screw nut that cooperates with the lead screw is connected to the transfer bracket via a connecting block.

[0010] The horizontal drive mechanism includes a horizontal guide rail arranged along the length of the horizontal mounting base. The vertical mounting base is slidably connected to the horizontal guide rail via a sliding block. The horizontal mounting base is also provided with a horizontal drive servo motor. The output end of the horizontal drive servo motor is connected to a drive gear via a planetary reducer. The drive gear meshes with a horizontal rack installed on the inner side of the horizontal guide rail.

[0011] The bottom adhesive mechanism of the cup includes an adhesive box with an open top. The bottom of the adhesive box has cup bottom placement seats distributed on its base. An adhesive inlet channel is provided along the central axis of the cup bottom placement seats. The adhesive inlet channel is connected to an external adhesive supply system through an adhesive inlet connector at the bottom.

[0012] The cup bottom placement base includes an upper placement part, a middle connecting part, and a lower mounting part. The upper part of the placement part is provided with a positioning groove for placing the cup bottom. The positioning groove is provided with adhesive sponge inside, and circumferentially distributed through-holes penetrating the placement part are provided along the edge of the positioning groove.

[0013] The lower end of the positioning groove is also provided with an overflow groove, and the overflow groove is provided with an overflow block with an inner diameter smaller than that of the positioning groove. The bottom of the overflow block is provided with an overflow channel that communicates with the glue inlet channel.

[0014] With the above structure, the inner wall gluing mechanism of the cup includes multiple gluing units. The cup is placed on the cup positioning seat, fixed by vacuum suction through the air suction channel, and then glue is supplied through the glue supply pipe mechanism. Finally, the cup is rotated by the rotation drive mechanism to uniformly coat the inside of the cup with glue. This method can complete batch inner wall gluing processing according to the setting of multiple gluing units. At the same time, the cup bottom gluing mechanism is sent to the cup bottom gluing processing through the transfer mechanism to complete the subsequent batch processing of cup bottom gluing. The various mechanisms of the present invention have a high degree of automation, which can save manpower and material resources and improve processing efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the adhesive coating mechanism of the present invention;

[0016] Figure 2 This is a front view of the overall structure of the adhesive application mechanism of the present invention;

[0017] Figure 3 This is a bottom view of the overall structure of the adhesive application mechanism of the present invention;

[0018] Figure 4 This is a top view of the overall structure of the adhesive application mechanism of the present invention;

[0019] Figure 5 This is a cross-sectional view of the overall structure of the adhesive application mechanism of the present invention along one direction;

[0020] Figure 6 This is a cross-sectional view of the overall structure of the adhesive application mechanism of the present invention along another direction;

[0021] Figure 7 This is a schematic diagram of the overall structure of the transfer mechanism of the present invention;

[0022] Figure 8 This is a schematic view of the overall structure of the transfer mechanism of the present invention;

[0023] Figure 9 This is a top view of the overall structure of the transfer mechanism of the present invention;

[0024] Figure 10 This is a cross-sectional view of the overall structure of the transfer mechanism of the present invention;

[0025] Figure 11 This is a schematic diagram of the overall structure of the bottom adhesive mechanism of the present invention;

[0026] Figure 12 This is a top view of the overall structure of the bottom adhesive mechanism of the present invention;

[0027] Figure 13 This is a cross-sectional view of the overall structure of the bottom adhesive mechanism of the present invention;

[0028] Figure 14 This is a schematic diagram of the structure of the cup bottom placement base of the present invention. Detailed Implementation

[0029] A cup adhesive applicator includes a cup inner wall adhesive applicator, a transfer mechanism, and a cup bottom adhesive applicator. The cup inner wall adhesive applicator applies adhesive evenly to the inner wall of the cup, and the transfer mechanism transfers the cup with the adhesive applied to the inner wall to the cup bottom adhesive applicator for bottom adhesive treatment.

[0030] Specifically, such as Figures 1 to 6 As shown, the glue application mechanism is installed inside the glue application box 1, which has an opening at the top. The glue application box 1 also has a glue supply pipe mechanism that works in conjunction with the glue application mechanism. This glue supply pipe mechanism is connected to an external glue supply system (not shown in the figure) to supply glue to the glue application mechanism. Specifically, the glue application mechanism includes evenly arranged glue application units 2. Each glue application unit 2 includes a cup positioning seat 21. The upper end of the cup positioning seat 21 has a contoured groove for fixing the cup. The height of this contoured groove is lower than the height of the cup, facilitating the placement and removal of the cup. The bottom of the cup positioning seat 21 is rotatably connected to the base of the glue application box 1 via a rotating shaft 22. The lower end of the rotating shaft 22 is powered by a rotating drive mechanism 3. This rotating drive mechanism 3 drives the rotating shaft 22 to rotate, evenly applying glue to the inner wall of the cup. A through vacuum suction channel 23 is provided along the central axis of the cup positioning seat 21 and the rotating shaft 22. The bottom of the suction channel 23 is connected to an external vacuum suction system (not shown in the figure). With the setting of the vacuum suction channel 23, after the cup is placed in the cup positioning seat 21, the external vacuum suction system will vacuum and fix the cup and the cup positioning seat 21.

[0031] Specifically, the glue supply tube mechanism 3 includes an outer glue tube frame 31, on which glue inlets 311 and glue outlets 312 are respectively provided. Inside the glue tube frame 31, there are connected glue tube branches 32 corresponding to each row of cup glue application units. The bottom of the glue tube branches 32 has glue outlets (not shown in the figure) corresponding to the cup positioning seats 21 of each cup glue application unit. Sliding seats 33 are fixedly connected to both sides of the glue tube frame 31. The outside of the glue application box 1 is provided with a slide rail 34 that slides with the sliding seats 33. The outside of the glue application box 1 is also provided with a glue tube transfer cylinder 35 connected to the sliding seats 33. During operation, the glue tube transfer cylinder 35 drives the sliding seats 33 to move relative to the slide rail 34, thereby driving the glue tube branches 32 to fill the cup positioning seats 21 of each row of cup glue application units with glue.

[0032] Specifically, the rotary drive mechanism 3 includes a glue-spinning servo motor 24 installed at the bottom of the glue-applying box 1. A main synchronous pulley is fitted onto the outside of the motor shaft of the glue-spinning servo motor 24, and a driven synchronous pulley 25 is fitted onto the lower end of the rotating shaft 22. The driven synchronous pulleys 25 of two adjacent rotating shafts 22 are connected by a synchronous belt. The main synchronous pulley of the glue-spinning servo motor 24 is also connected to the driven synchronous pulley 25 of one of the rotating shafts 22 by a synchronous belt. During operation, glue is first applied to the cup through the glue supply pipe mechanism, and then the glue-spinning servo motor 24 is started. It drives the rotating shaft 22 to rotate via the main and driven synchronous pulleys. During adjustment, it first runs at a low speed to allow excess glue inside the cup to be flung out, and then runs at a high speed to ensure even glue application to the inner wall of the cup.

[0033] After the above-mentioned glue-applying mechanism completes its processing, it is transferred to the next process via a transfer mechanism. Specifically, for example... Figures 7 to 10As shown, the transfer mechanism includes a transfer bracket 4, which is movably mounted on a vertical mounting base 5. The vertical mounting base 5 is provided with a lifting drive mechanism 6 that is poweredly connected to the transfer bracket 4. The lifting drive mechanism 6 drives the vertical mounting base 5 to rise or fall in the vertical direction. A vertical mounting base 5 is movably mounted on a horizontal mounting base 7. A horizontal drive mechanism 8 is movably connected to the horizontal mounting base 7. A cup transfer unit that cooperates with the cup glue application unit 2 is provided on the transfer bracket 4. Specifically, the cup transfer unit includes a guide rod 41 vertically mounted on the transfer bracket 4. The guide rod 41 is mounted on the transfer bracket 4 through a bearing seat. The upper end of the guide rod 41 is connected to an external vacuum system, and the lower end of the guide rod 41 is connected to a pressure sleeve 42. An air suction channel is provided along the axial direction inside the guide rod 41. A gripper cylinder 43 is provided at the bottom of the transfer bracket 4 corresponding to the lower end of each row of cup transfer units. The output end of the gripper cylinder 43 is connected to a clamping plate 44 that cooperates with each row of cup transfer units. A corresponding gripper 45 is provided on the clamping plate 44 at the cup clamping position. During operation, the transfer bracket 4, driven by the lifting drive mechanism 6 and the horizontal drive mechanism 8, moves to a suitable position. The guide rod 41 and the pressure sleeve 42 on it contact the mouth of the cup. The suction channel on the guide rod 41 connects to the external vacuum system to draw a vacuum. At the same time, the gripper cylinder 43 controls the gripper 45 to clamp and fix the cup. Then, driven by the lifting drive mechanism 6 and the horizontal drive mechanism 8, it moves to the next station for feeding.

[0034] Specifically, the lifting drive mechanism 6 includes a lifting servo motor 61 mounted on the upper end of the vertical mounting base 5. The output shaft of the lifting servo motor 61 is connected to the main synchronous pulley. The vertical mounting base 5 also has a slave synchronous pulley connected to the main and slave synchronous pulleys via a synchronous belt. The slave synchronous pulley is connected to a vertically downward lead screw 62 via a coupling. The lead screw nut that mates with the lead screw 62 is connected to the transfer bracket 4 via a connecting block. A vertical guide rail is also provided along the vertical mounting base 5, and a sliding block that mates with the vertical guide rail is provided on the transfer bracket 4. During operation, the lifting servo motor 61 drives the slave synchronous pulley to rotate via the main synchronous pulley, thereby driving the lead screw 62 connected to it to rotate, and ultimately driving the transfer bracket 4 to rise or fall. This lifting drive mechanism 6 drives the transfer bracket 4 and the cup it holds to rise or fall.

[0035] Specifically, the horizontal drive mechanism 8 includes a horizontal guide rail 71 arranged along the length of the horizontal mounting base 7. The bottom of the vertical mounting base 5 is slidably connected to the horizontal guide rail 71 via a sliding block. The horizontal mounting base 7 is also equipped with a horizontal drive servo motor 72, the output end of which is connected to a drive gear (not shown in the figure) via a planetary reducer 73. The drive gear meshes with a horizontal rack 74 installed inside the horizontal guide rail 71. This horizontal drive mechanism drives the vertical mounting base 5 and its transfer bracket 4 to move and transfer the cup in the horizontal direction.

[0036] The aforementioned transfer mechanism then sends the cup with the inner wall coated with adhesive to the bottom gluing mechanism for adhesive gluing of the bottom of the cup. Specifically, as follows: Figures 11 to 14 As shown, the cup bottom gluing mechanism includes a gluing box 9 with an open top. Cup bottom placement seats 91 for placing cups are distributed on the base of the gluing box 9. A glue inlet channel 911 is provided along the central axis of the cup bottom placement seat 91. The glue inlet channel 911 is connected to an external glue supply system (not shown in the figure) through a glue inlet connector 92 at the bottom.

[0037] Specifically, the cup bottom holder 91 includes an upper placement part 913, a middle connecting part 914, and a lower mounting part 915. The cup bottom holder 91 has an integrated structure design. The upper part of the placement part is provided with a positioning groove for placing the bottom of the cup. The positioning groove is provided with an adhesive sponge 93. Along the edge of the positioning groove, there are circumferentially distributed glue outlet holes 916 that penetrate the placement part. During operation, the glue is fed into the adhesive sponge 93 in the upper placement groove of the cup bottom holder 91 through the glue inlet channel 911 by an external glue supply system. After the glue is evenly spread by the adhesive sponge 93, it contacts the bottom of the cup to coat the bottom of the cup, thus completing the glue coating process. At the same time, excess glue can flow into the glue box 9 through the glue outlet holes 916. The bottom of the glue box 9 is also provided with a glue outlet 95 to discharge excess glue.

[0038] Preferably, the lower end of the positioning groove is also provided with an overflow groove. The overflow groove is provided with an overflow block 94 whose inner diameter is smaller than that of the positioning groove. The bottom of the overflow block 94 is provided with a horizontal overflow channel that communicates with the glue inlet channel 911. The glue entering the glue inlet channel 911 flows out along the circumference of the overflow block 94 through the overflow channel and comes into contact with the adhesive sponge 93 in the positioning groove, so that the adhesive sponge 93 is fully soaked in glue, which can make the bottom of the cup evenly glued.

[0039] In this invention, the gluing mechanism includes gluing units 2 arranged in a 5*5 array. After gluing is applied by the glue supply pipe mechanism 3, the cup positioning seats 21 connected to the rotating shaft 22 of the gluing unit 2 are rotated by the rotary drive mechanism 3 to keep the inner wall of the cup uniformly coated with glue. The rotary drive mechanism 3 has two glue-spraying servo motors 24. One of them drives the cup positioning seats 21 connected to 13 rotating shafts 22 to rotate and apply glue, and the other drives the cup positioning seats 21 connected to 12 rotating shafts 22 to rotate and apply glue. After completing this gluing process, the 25 cups are picked up at once by the transfer bracket 4 of the transfer mechanism, and then driven by the lifting drive mechanism 6 and the horizontal drive mechanism 8 to be placed on the cup bottom positioning seat 91 of the bottom gluing mechanism. Then, the bottom of the cup is injected with glue by the external glue supply mechanism to complete the bottom gluing process. The processing method of this invention can complete the inner wall coating of 25 cups in one go, which can process a large number of cups at the same time, while ensuring uniform coating, high degree of automation, saving manpower and material resources, and improving the processing efficiency of disposable cups.

[0040] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A cup glue-applying device, characterized in that: It includes a cup inner wall adhesive coating mechanism, a transfer mechanism, and a cup bottom adhesive gluing mechanism that work together. The glue application mechanism is installed on a glue application box with an opening at the top. The glue application box is also equipped with a glue supply pipe mechanism that cooperates with the glue application mechanism. The glue supply pipe mechanism is connected to an external glue supply system. The glue application mechanism includes evenly arranged glue application units. Each glue application unit includes a cup positioning seat. The bottom of the cup positioning seat is rotatably connected to the base of the glue application box via a rotating shaft. The bottom of the rotating shaft is powered by a rotating drive mechanism. The rotating drive mechanism drives the rotating shaft to rotate. A through vacuum suction channel is provided along the central axis of the cup positioning seat and the rotating shaft. The bottom of the suction channel is connected to an external vacuum suction system. The bottom adhesive mechanism of the cup includes an adhesive box with an open top. The bottom of the adhesive box has cup bottom placement seats distributed on its base. An adhesive inlet channel is provided along the central axis of the cup bottom placement seats. The adhesive inlet channel is connected to an external adhesive supply system through an adhesive inlet connector at the bottom. The cup bottom placement base includes an upper placement part, a middle connecting part, and a lower mounting part. The upper part of the placement part is provided with a positioning groove for placing the cup bottom. The positioning groove is provided with adhesive sponge inside, and circumferentially distributed through-holes penetrating the placement part are provided along the edge of the positioning groove. During operation, the glue is fed into the adhesive sponge in the placement slot at the top of the cup bottom placement seat through the glue inlet channel via an external glue supply system. After the glue is evenly spread by the adhesive sponge, it contacts the bottom of the cup to coat the bottom with adhesive, thus completing the glue coating process on the bottom of the cup. At the same time, excess glue flows into the glue box through the glue outlet hole. The bottom of the glue box is also equipped with a glue drain port to discharge excess glue. The lower end of the positioning groove is also provided with an overflow groove. Inside the overflow groove is an overflow block with an inner diameter smaller than that of the positioning groove. The bottom of the overflow block is provided with an overflow channel that communicates with the glue inlet channel. The glue entering the glue inlet channel flows out along the circumference of the overflow block through the overflow channel and comes into contact with the adhesive sponge in the positioning groove, thereby making the adhesive sponge fully soaked in glue.

2. The cup glue applicator according to claim 1, characterized in that: The rotary drive mechanism includes a glue-spinning servo motor installed at the bottom of the glue-applying box. A main synchronous pulley is fitted on the outside of the motor shaft of the glue-spinning servo motor, and a driven synchronous pulley is fitted on the lower end of the rotary shaft. The driven synchronous pulleys of two adjacent rotary shafts are connected by a synchronous belt. The main synchronous pulley of the glue-spinning servo motor is also connected to one of the driven synchronous pulleys of the rotary shaft by a synchronous belt.

3. The cup gluing device according to claim 1, characterized in that: The glue supply tube mechanism includes an outer glue tube frame, on which glue inlets and glue outlets are respectively provided. Inside the glue tube frame, there are interconnected glue tube branches corresponding to each row of glue application units. Each glue tube branch has a glue outlet corresponding to the cup positioning seat of each glue application unit. Sliding seats are fixedly connected to both sides of the glue tube frame. The outside of the glue application box is provided with a slide rail that slides with the sliding seats. The outside of the glue application box is also provided with a glue tube transfer cylinder connected to the sliding seats.

4. The cup gluing device according to claim 1, characterized in that: The transfer mechanism includes a transfer bracket movably mounted on a vertical mounting base. The vertical mounting base is equipped with a lifting drive mechanism poweredly connected to the transfer bracket. The vertical mounting base is movably mounted on a horizontal mounting base, which is equipped with a horizontal drive mechanism movably connected to it. The transfer bracket includes a cup transfer unit that cooperates with the glue application unit. The cup transfer unit includes a guide rod vertically mounted on the transfer bracket, with a suction channel along the inside of the guide rod. The upper end of the guide rod is connected to a vacuum system, and the lower end is connected to a pressure sleeve. A gripper cylinder is located at the bottom of the transfer bracket corresponding to the lower end of each row of cup transfer units. The output end of each gripper cylinder is connected to a clamping plate that cooperates with each row of cup transfer units. The clamping plate has corresponding grippers at the cup-gripping positions.

5. The cup gluing device according to claim 4, characterized in that: The lifting drive mechanism includes a lifting servo motor mounted on the upper end of the vertical mounting base. The output shaft of the lifting servo motor is connected to the main synchronous pulley. The vertical mounting base is also provided with a slave synchronous pulley connected to the main synchronous pulley via a synchronous belt. The slave synchronous pulley is connected to a vertically downward lead screw via a coupling. The lead screw nut that cooperates with the lead screw is connected to the transfer bracket via a connecting block.

6. The cup gluing device according to claim 5, characterized in that: The horizontal drive mechanism includes a horizontal guide rail arranged along the length of the horizontal mounting base. The vertical mounting base is slidably connected to the horizontal guide rail via a sliding block. The horizontal mounting base is also equipped with a horizontal drive servo motor. The output end of the horizontal drive servo motor is connected to a drive gear via a planetary reducer. The drive gear meshes with a horizontal rack installed on the inner side of the horizontal guide rail.

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