Demolding mechanism for processing disposable plastic cup

By designing a demolding mechanism that includes a vacuum suction cup and a fan, the problems of uneven force and incomplete cooling of plastic cups after injection molding were solved, achieving uniform demolding and cooling, and improving the processing quality and production efficiency of plastic cups.

CN223685830UActive Publication Date: 2025-12-19JIANGSU RISHENG BIOLOGICAL TECH CO LTD
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Patent Information

Application Number
CN202520114974.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-17
Publication Date
2025-12-19
Estimated Expiration
2035-01-17

AI Technical Summary

Technical Problem

Disposable plastic cups are prone to uneven stress during demolding after injection molding, which can cause bottom depressions and damage. Also, if they are not fully cooled, the side walls can stick to the mold cavity, affecting the processing quality and the use of the mold cavity.

Method used

A demolding mechanism was designed, comprising a mounting base, mounting frame, telescopic rod, vacuum suction cup, fan, and cylinder. The vacuum suction cup evenly adsorbs the side wall of the plastic cup, and the use of the fan cooling and cylinder top plate achieves uniform demolding and cooling, adapting to different models of plastic cups.

Benefits of technology

It achieves uniform force distribution during demolding of plastic cups, avoiding damage, and accelerates the demolding process through a cooling fan. It is adaptable to the processing of various models of plastic cups, reduces manual intervention, and improves production efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a demoulding mechanism for processing a disposable plastic cup, which comprises a mounting seat, a female die is arranged in the mounting seat, a mounting rack is arranged above the mounting seat, a first telescopic rod is slidably mounted in the mounting rack, a second telescopic rod is slidably mounted in the first telescopic rod, and the female die is arranged on the mounting rack. A fixed seat is fixedly mounted at one end, far away from the first telescopic rod, of the second telescopic rod, a mounting ring is arranged in the fixed seat, a gear ring sleeves the mounting ring, a driving wheel is rotatably mounted in the fixed seat, a plurality of groups of annularly distributed adjusting frames are arranged in the fixed seat, and two groups of vacuum chucks are arranged on each adjusting frame; a threaded rod is arranged in the mounting frame, a threaded pipe is arranged in the first telescopic rod, all positions of the side wall of the plastic cup are evenly adsorbed through the multiple sets of adjusting frames and the two sets of vacuum suction cups arranged on the adjusting frames, and the situation that the plastic cup is damaged due to the fact that the plastic cup is stressed unevenly when demolding is conducted independently through a top plate is avoided.
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Description

TECHNICAL FIELD

[0001] The utility model relates to plastic cup processing technical field, concretely is a demoulding mechanism for disposable plastic cup processing. BACKGROUND

[0002] Plastic cup refers to the disposable container for beverage and tea. It is a non-degradable product and the main source of "white pollution". The largest user of disposable plastic cups is generally beverage stores, hot and cold drink stores, milk tea stores, hotels, restaurants and coffee shops, which provide various take-out drinks and on-site use of plastic cups. Disposable plastic cups are usually produced by injection molding technology. Injection molding is a common plastic molding process, which is suitable for producing plastic products of various shapes and sizes. After injection molding, the disposable plastic cups need to be demolded.

[0003] At present, the demolding of the plastic cup after injection molding of the disposable plastic cup is completed by the ejection mechanism in the concave mold. The disposable plastic cup is not uniformly stressed in the concave mold, which can easily cause the bottom to be damaged. In addition, the side wall of the disposable plastic cup can be partially bonded in the concave mold during the demolding process if it is not completely cooled, which affects the processing quality of the disposable plastic cup and the subsequent use of the concave mold. SUMMARY

[0004] The utility model aims at providing a demoulding mechanism for disposable plastic cup processing to solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a demoulding mechanism for disposable plastic cup processing, comprising a mounting seat, a concave mold is arranged in the mounting seat, an installation frame is arranged above the mounting seat, the installation frame is rotatably connected with the mounting seat through a rotating shaft, a first telescopic rod is slidably installed in the installation frame, a second telescopic rod is slidably installed in the first telescopic rod, a fixed seat is fixedly installed at the end of the second telescopic rod away from the first telescopic rod, an installation ring is arranged in the fixed seat, a gear ring is sleeved on the installation ring, a driving wheel is rotatably installed in the fixed seat, a plurality of groups of adjusting frames are arranged in the form of annular in the fixed seat, two groups of vacuum suction cups are arranged on the adjusting frame, the two groups of vacuum suction cups are slidably connected with the adjusting frame, a damping rod is arranged between the adjusting frame and the vacuum suction cup, a fan is rotatably installed in the fixed seat, a threaded rod is arranged in the installation frame, and a threaded pipe is arranged in the first telescopic rod.

[0006] As a further preferred embodiment of the present technical solution, the bottom of the concave mold is embedded with a top plate, a first air cylinder is installed in the mounting seat, the top plate is connected with the output end of the piston rod of the first air cylinder, the installation ring is rotatably connected with the fixed seat through a bearing, and the driving wheel is meshingly connected with the gear ring.

[0007] As a further preferred of the technical solution, the plurality of adjusting frames are rotatably connected with the fixing base through the rotating shafts, the first gears are sleeved on the adjusting frames, the plurality of first gears are meshingly connected with the toothed ring, the two ends of the damping rod are fixedly connected with the corresponding vacuum suction cups and adjusting frames respectively, and the connecting pipe is arranged between the two vacuum suction cups.

[0008] As a further preferred of the technical solution, the driven wheels are sleeved on the fan, the driving wheels are rotatably installed in the fixing base, and the belt is arranged in the fixing base and is in transmission connection with the driving wheels and the driven wheels.

[0009] As a further preferred of the technical solution, the upper end of the threaded rod penetrates through the mounting frame and is rotatably connected with the mounting frame through the bearing, the upper end of the threaded pipe penetrates through the first telescopic rod and is threadedly connected with the first telescopic rod, the lower end of the threaded rod penetrates through the first telescopic rod and is threadedly connected with the first telescopic rod, and the lower end of the threaded pipe penetrates through the second telescopic rod and is threadedly connected with the second telescopic rod.

[0010] As a further preferred of the technical solution, the threaded rod is provided with two groups of symmetrically distributed limiting grooves, the threaded pipe is provided with two groups of symmetrically distributed limiting blocks, the limiting blocks are arranged in correspondence with the limiting grooves, and the threaded pipe is slidably sleeved with the threaded rod through the limiting blocks.

[0011] As a further preferred of the technical solution, the second gears are sleeved on the mounting frame, the mounting seat is provided with the rack, the mounting seat is provided with the second cylinder, the rack is in sliding connection with the mounting seat, the rack is connected with the output end of the piston rod of the second cylinder, and the rack is in meshing connection with the second gear.

[0012] The utility model provides a kind of demoulding mechanism for disposable plastic cup processing, with the following beneficial effects:

[0013] (1) the utility model discloses a plurality of adjusting frames and the two groups of vacuum suction cups arranged on the adjusting frames are evenly adsorbed on the various positions of the plastic cup sidewall, and cooperate with the first cylinder and the top plate to complete the demolding of the plastic cup in the recessed die and discharge, avoid relying on the top plate demolding alone, so that the plastic cup is not uniformly stressed, leading to plastic cup damage, and the fan in the fixing base can accelerate the speed of the plastic cup and the inner wall of the recessed die in the process of demolding.

[0014] (2)The utility model discloses a mounting ring cooperation gear ring and first gear etc. are arranged to realize the adjustment of the radius of multiple sets of adjusting frame, make the demoulding mechanism can be applicable to multiple different models of plastic cup, and the first telescopic rod and second telescopic rod of mounting frame cooperation are arranged to realize the transfer of the plastic cup after demoulding, under the action of fan and multiple sets of adjustable radius adjusting frame, make plastic cup demoulding also relatively easy and adjusting frame separates, successfully complete plastic cup whole demoulding transportation work, in this process, plastic cup does not need manual contact. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the whole structure schematic diagram of the utility model;

[0016] Figure 2 It is the structure schematic diagram of the fixed seat of the utility model;

[0017] Figure 3 It is the structure schematic diagram of the mounting frame of the utility model;

[0018] Figure 4 It is the structure schematic diagram of the mounting ring of the utility model;

[0019] Figure 5 It is the structure schematic diagram of the vacuum chuck of the utility model;

[0020] In the drawing: 1, mounting seat;2, concave die;3, top plate;4, first air cylinder;5, mounting frame;6, first telescopic rod;7, second telescopic rod;8, fixed seat;9, threaded rod;10, threaded tube;11, limit slot;12, limit block;13, fan;14, driving wheel;15, driven wheel;16, belt;17, mounting ring;18, gear ring;19, driving wheel;20, adjusting frame;21, first gear;22, damping rod;23, spring;24, vacuum chuck;25, connecting pipe;26, second gear;27, rack;28, second air cylinder. DETAILED DESCRIPTION

[0021] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model.

[0022] The utility model provides technical scheme: as Figures 1-5As shown, in this embodiment, a demolding mechanism for processing disposable plastic cups, comprising a mounting seat 1, a recess die 2 is arranged in the mounting seat 1, a mounting frame 5 is arranged above the mounting seat 1, the mounting frame 5 is rotatably connected with the mounting seat 1 through a rotating shaft, a first telescopic rod 6 is slidably arranged in the mounting frame 5, a second telescopic rod 7 is slidably arranged in the first telescopic rod 6, a fixed seat 8 is fixedly arranged at one end of the second telescopic rod 7 away from the first telescopic rod 6, a mounting ring 17 is arranged in the fixed seat 8, a gear ring 18 is sleeved on the mounting ring 17, a drive wheel 19 is rotatably arranged in the fixed seat 8, a plurality of adjustment frames 20 are arranged in the fixed seat 8 in a ring shape, two groups of vacuum suction cups 24 are arranged on each adjustment frame 20, the two groups of vacuum suction cups 24 are slidably connected with the adjustment frame 20, a damping rod 22 is arranged between the adjustment frame 20 and the vacuum suction cup 24, a fan 13 is rotatably arranged in the fixed seat 8, a threaded rod 9 is arranged in the mounting frame 5, a threaded pipe 10 is arranged in the first telescopic rod 6, the rotation of the drive wheel 19 driven by the motor in the fixed seat 8 drives the mounting ring 17 to rotate through the meshing connection of the gear ring 18, and a plurality of first gears 21 meshingly connected with the gear ring 18 drive the corresponding adjustment frames 20 to rotate synchronously, the radius of the plurality of adjustment frames 20 is adjusted, so that the vacuum suction cups arranged on each adjustment frame 20 are in close contact with the inner wall of the plastic cup, a top plate 3 is embedded at the bottom of the recess die 2, a first cylinder 4 is arranged in the mounting seat 1, the top plate 3 is connected with the output end of the piston rod of the first cylinder 4, the mounting ring 17 is rotatably connected with the fixed seat 8 through a bearing, the drive wheel 19 is meshingly connected with the gear ring 18, the vacuum suction cups 24 are connected with the vacuum pump through a connecting pipe 25, after the inner wall of the plastic cup is fixed by the plurality of vacuum suction cups 24, the first telescopic rod 6 and the second telescopic rod 7 are lifted upwards, and the top plate 3 is lifted by cooperating with the first cylinder 4, so as to complete the demolding work of the plastic cup together, the stress of each position of the plastic cup is uniform during the whole demolding process, the plurality of adjustment frames 20 are rotatably connected with the fixed seat 8 through rotating shafts, the first gears 21 are sleeved on the adjustment frames 20, the plurality of first gears 21 are meshingly connected with the gear ring 18, the two ends of the damping rod 22 are fixedly connected with the corresponding vacuum suction cups 24 and the adjustment frames 20, the connecting pipe 25 is arranged between the two groups of vacuum suction cups 24, and the two groups of suction cups on each adjustment frame 20 can be in close contact with the corresponding positions of the inner wall of the special-shaped plastic cup under the action of the damping rod 22 and the spring 23, so as to ensure that the inner wall of the plastic cup is uniformly adsorbed and fixed, and avoid damage to the plastic cup caused by uneven stress in the demolding process.

[0023] As Figure 3 and Figure 4The fan 13 is sleeved with a driven wheel 15, the driving wheel 14 is rotatably installed in the fixed seat 8, the belt 16 is arranged in the fixed seat 8, the belt 16 is respectively connected with the driving wheel 14 and the driven wheel 15, when the vacuum chuck 24 fixes the plastic cup at different positions, the motor in the fixed seat 8 is started to drive the driving wheel 14, the belt 16 and the driven wheel 15 to start the fan 13, the fan 13 blows the cooling air downward to assist the plastic cup to complete the cooling, the screw rod 9 is rotatably connected with the mounting frame 5 through the bearing, the upper end of the threaded tube 10 is screwed with the first telescopic rod 6, the lower end of the screw rod 9 is screwed with the first telescopic rod 6, the lower end of the threaded tube 10 is screwed with the second telescopic rod 7, the screw rod 9 is provided with two groups of symmetrical limiting grooves 11, the threaded tube 10 is provided with two groups of symmetrical limiting blocks 12, the limiting blocks 12 are arranged corresponding to the limiting grooves 11, the threaded tube 10 is sleeved with the screw rod 9 through the limiting blocks 12, after the plastic cup is demolded, the motor in the mounting frame 5 drives the screw rod 9 to rotate, and the first telescopic rod 6 and the second telescopic rod 7 are retracted under the action of the limiting grooves 11 and the limiting blocks 12, the plastic cup is lifted, the second gear 26 is sleeved with the mounting frame 5, the rack 27 is arranged in the mounting seat 1, the second cylinder 28 is arranged in the mounting seat 1, the rack 27 is slidably connected with the mounting seat 1, the rack 27 is connected with the output end of the piston rod of the second cylinder 28, the rack 27 is meshingly connected with the second gear 26, the rack 27 is slid under the driving of the second cylinder 28, and the mounting frame 5 is rotated by cooperating with the second gear 26, so that the plastic cup is away from the concave die 2 in the mounting seat 1, the fan 13 is continuously rotated, the vacuum pump and the vacuum chuck 24 are closed to complete the smooth discharge of the plastic cup.

[0024] The utility model provides a disposable plastic cup processing is with demoulding mechanism, concrete working principle is as follows: through the rotation of motor drive wheel 19 in fixed base 8, the rotation of the gear ring 18 of engagement connection drives the installation ring 17, and a plurality of first gear 21 of engagement connection of gear ring 18 will drive corresponding adjusting frame 20 synchronous rotation, for a plurality of adjusting frame 20 around radius adjustment, so that the suction cup installed on each adjusting frame 20 is all with plastic cup inner wall, through connecting pipe 25 connects vacuum chuck 24 with vacuum pump, a plurality of vacuum chuck 24 is even for plastic cup inner wall fixed, under the action of first telescopic link 6 and second telescopic link 7, and cooperate first cylinder 4 makes the top plate 3 rise, jointly completes the demoulding work of plastic cup, and the stress of plastic cup each position is even in the whole demoulding process, under the action of damper 22 and spring 23 makes two groups of suction cups on each adjusting frame 20 can with the corresponding position of the inner wall of special-shaped plastic cup, guarantee plastic cup inner wall is evenly adsorbed fixed, avoid in the demoulding process partial position uneven stress leads to the damage of plastic cup, while vacuum chuck 24 is fixed for plastic cup each position, start motor in fixed base 8 cooperation driving wheel 14, belt 16 and driven wheel 15 complete the start of fan 13, and fan 13 blows down cooling air, and auxiliary plastic cup completes cooling, guarantee the smooth demoulding of plastic cup, after the demoulding of plastic cup is completed, start the rotation of screw rod 9 in mounting bracket 5 motor drive, and realize the retraction of first telescopic link 6 and second telescopic link 7 under the action of limiting groove 11 and limiting block 12, complete the lifting of plastic cup, under the driving of second cylinder 28 makes rack 27 slide, cooperate second gear 26 realizes the rotation of mounting bracket 5, so that plastic cup is far from mounting seat 1 inner female die 2, and fan 13 continues to rotate, and close vacuum pump and vacuum chuck 24 complete the smooth discharge of plastic cup.

[0025] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A demolding mechanism for processing disposable plastic cups, comprising a mounting seat (1), characterized in that: The mounting seat (1) is provided with a recessed die (2), the mounting seat (1) is provided with a mounting rack (5) above, the mounting rack (5) is rotatably connected with the mounting seat (1) through a rotating shaft, the first telescopic rod (6) is slidably installed in the mounting rack (5), the second telescopic rod (7) is slidably installed in the first telescopic rod (6), the second telescopic rod (7) is fixedly installed with a fixed seat (8) away from one end of the first telescopic rod (6), the fixed seat (8) is provided with a mounting ring (17), the mounting ring (17) is sleeved with a gear ring (18), the fixed seat (8) is rotatably installed with a driving wheel (19), the fixed seat (8) is provided with a plurality of groups of adjusting racks (20) distributed in a ring shape, the adjusting racks (20) are all provided with two groups of vacuum suction cups (24), the two groups of vacuum suction cups (24) are all slidably connected with the adjusting racks (20), the damping rods (22) are arranged between the adjusting racks (20) and the vacuum suction cups (24), the fixed seat (8) is rotatably installed with a fan (13), the mounting rack (5) is provided with a threaded rod (9), and the first telescopic rod (6) is provided with a threaded tube (10).

2. A demolding mechanism for processing disposable plastic cups according to claim 1, characterized in that: The recessed die (2) is embedded with a top plate (3), the mounting seat (1) is provided with a first air cylinder (4), the top plate (3) is connected with the output end of the piston rod of the first air cylinder (4), the mounting ring (17) is rotatably connected with the fixed seat (8) through a bearing, and the driving wheel (19) is meshedly connected with the gear ring (18).

3. A demolding mechanism for processing disposable plastic cups according to claim 1, characterized in that: A plurality of groups of the adjusting racks (20) are rotatably connected with the fixed seat (8) through rotating shafts, the adjusting racks (20) are sleeved with first gears (21), a plurality of groups of the first gears (21) are meshedly connected with the gear ring (18), the two ends of the damping rod (22) are fixedly connected with the corresponding vacuum suction cup (24) and adjusting rack (20) respectively, and connecting pipes (25) are arranged between the two groups of vacuum suction cups (24).

4. A demolding mechanism for processing disposable plastic cups according to claim 1, characterized in that: The fan (13) is sleeved with a driven wheel (15), the fixed seat (8) is rotatably installed with a driving wheel (14), the fixed seat (8) is provided with a belt (16), and the belt (16) is drivingly connected with the driving wheel (14) and the driven wheel (15) respectively.

5. A demolding mechanism for processing disposable plastic cups according to claim 1, characterized in that: The upper end of the threaded rod (9) penetrates through the mounting rack (5) and is rotatably connected with the mounting rack (5) through a bearing, the upper end of the threaded tube (10) penetrates through the first telescopic rod (6) and is threadedly connected with the first telescopic rod (6), the lower end of the threaded rod (9) penetrates through the first telescopic rod (6) and is threadedly connected with the first telescopic rod (6), and the lower end of the threaded tube (10) penetrates through the second telescopic rod (7) and is threadedly connected with the second telescopic rod (7).

6. A demolding mechanism for processing disposable plastic cups according to claim 1, characterized in that: The threaded rod (9) is provided with two groups of symmetrically distributed limiting grooves (11), the threaded tube (10) is provided with two groups of symmetrically distributed limiting blocks (12), the limiting blocks (12) are correspondingly arranged with the limiting grooves (11), and the threaded tube (10) is slidably sleeved with the threaded rod (9) through the limiting blocks (12).

7. A demolding mechanism for processing disposable plastic cups according to claim 1, characterized in that: The mounting frame (5) is sleeved with a second gear (26), the mounting base (1) is provided with a rack (27), the mounting base (1) is provided with a second cylinder (28), the rack (27) is in sliding connection with the mounting base (1), the rack (27) is connected with the output end of the piston rod of the second cylinder (28), and the rack (27) is in meshing connection with the second gear (26).