Stacking device for nutritional porridge capping machine

Abstract

The utility model discloses a stacking device for a nutritional porridge capping machine, which belongs to the technical field of food packaging machinery and comprises a rack, a main conveying belt is transversely arranged at the top of the rack, and a material guide mechanism and a material transfer mechanism are arranged above a conveying plane of the main conveying belt. The material guide mechanism comprises a first arc-shaped guide plate arranged along the edge of the outer side of the main conveying belt and a second arc-shaped guide plate arranged along the edge of the inner side of the main conveying belt, five third arc-shaped guide plates are arranged between the first arc-shaped guide plate and the second arc-shaped guide plate at equal intervals, and six guide channels arranged in parallel are jointly formed; the material transferring mechanism comprises a supporting base fixed to the side edge of the main conveying belt, a pneumatic control unit is arranged on the supporting base, and the pneumatic control unit is connected with a first execution unit and a second execution unit through air pipes. Through modular structural design and pneumatic cooperative control, high efficiency, accuracy and low loss of nutritional porridge stacking are achieved, and the packaging automation level is remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of food packaging machinery technology, specifically to an automated material stacking device for a nutritious porridge lid-setting machine, which is particularly suitable for the efficient and precise arrangement and transfer of canned or cup-packaged nutritious porridge. Background Technology

[0002] In automated packaging production lines for liquid foods such as nutritious porridge, the material stacking process is a crucial link connecting filling and sealing. Traditional material stacking methods mainly rely on manual operation or simple mechanical assistance, resulting in low efficiency, high labor intensity, and poor positioning accuracy. Although existing mechanical material stacking devices can achieve partial automation, the following technical bottlenecks still exist:

[0003] 1. Inadequate guide structure design: The material guide channels of existing equipment are mostly fixed straight plate structures, which are prone to jamming or deviation when materials turn, resulting in uneven arrangement and affecting the accurate grasping of subsequent workstations.

[0004] 2. Poor synchronization of material transfer: Most devices use a single cylinder to drive multiple sets of material feeding mechanisms, which makes it difficult to achieve synchronous opening and closing of multiple channels, and easily causes material accumulation or leakage.

[0005] 3. Limited continuous operation: Frequent machine stops are required during material transfer to wait for reset, and the interlocking mechanism and conveyor belt are not closely coordinated, making it difficult to increase the production cycle.

[0006] 4. Sealing and wear issues: When the blocking plate comes into contact with the conveyor belt, the rigid collision can easily damage the materials and equipment, and the sealing performance will decrease after long-term use, affecting the isolation effect.

[0007] Therefore, there is an urgent need for a material stacking device that can adapt to the characteristics of nutritious porridge products and has both high-precision guidance and efficient continuous operation. Utility Model Content

[0008] 1. Technical problem to be solved:

[0009] In view of the problems existing in the prior art, the purpose of this utility model is to provide a material feeding device for a nutritious porridge covering machine. Through modular structural design and pneumatic coordinated control, it achieves high efficiency, accuracy and low loss in nutritious porridge feeding, and significantly improves the level of packaging automation.

[0010] 2. Technical Solution:

[0011] To solve the above problems, the present invention adopts the following technical solution.

[0012] A material feeding device for a nutritious porridge topping machine includes a frame, a main conveyor belt horizontally arranged on the top of the frame, and a material guiding mechanism and a material transfer mechanism arranged above the conveying plane of the main conveyor belt.

[0013] The material guiding mechanism includes a first arc-shaped guide plate arranged along the outer edge of the main conveyor belt and a second arc-shaped guide plate arranged along the inner edge of the main conveyor belt. Five third arc-shaped guide plates are equally spaced between the first arc-shaped guide plate and the second arc-shaped guide plate, forming six parallel guide channels. The outlet ends of each guide channel are flush.

[0014] The material transfer mechanism includes a support base fixed to the side of the main conveyor belt, and a pneumatic control unit is provided on the support base. The pneumatic control unit is connected to the first execution unit and the second execution unit through air pipes.

[0015] The first execution unit includes a first lifting cylinder vertically installed in the support base. The piston rod end of the first lifting cylinder is connected to a translation cylinder. The cylinder body of the translation cylinder is provided with guide brackets on both sides. A bearing plate is fixed between the two guide brackets. The bearing plate is provided with six material discharge ports. The piston rod end of the translation cylinder is provided with an opening and closing stop block that cooperates with the material discharge ports.

[0016] The second execution unit includes a second lifting cylinder vertically disposed within the support base, and the piston rod end of the second lifting cylinder is connected to a blocking plate that can cover the edge of the main conveyor belt.

[0017] A further improvement is that the pneumatic control unit includes an air compressor and an electromagnetic control valve group, wherein the electromagnetic control valve group uses a three-position five-way electromagnetic valve to realize the sequential control of cylinder action.

[0018] A further improvement is that the bottom of the blocking plate is provided with a flexible sealing strip, the cross-sectional shape of which matches the outline of the side beam of the main conveyor belt, and the material of the flexible sealing strip is silicone or polyurethane with a thickness of 3-5mm.

[0019] A further improvement is that the width of the guide channel is formed by the gradual change in the curvature radius of the first arc-shaped guide plate, the second arc-shaped guide plate, and the third arc-shaped guide plate, in order to adapt to the turning and conveying of materials.

[0020] A further improvement is that the center line of the material drop outlet of the bearing plate coincides with the center line of the corresponding guide channel.

[0021] 3. Beneficial effects:

[0022] Compared with the prior art, the technical solution provided by this utility model has the following advantages:

[0023] (1) High-precision guidance and arrangement: The gradual curvature design of the arc guide plate group enables the material to be naturally aligned during the turning process, avoiding jamming. The equal spacing of the six guide channels ensures that the material is evenly distributed, and the flat design at the outlet further improves the consistency of stacking.

[0024] (2) High-efficiency continuous operation: The pneumatic control unit coordinates with the first and second execution units to operate in steps. While the blocking plate is pressing down to block, the bearing plate simultaneously descends to release the material, realizing the "blocking-dropping-resetting" cycle. The conveyor belt can continuously supply material without stopping the machine, increasing production efficiency by more than 30%.

[0025] (3) Low wear and long service life: The flexible sealing strip at the bottom of the blocking plate is flexibly attached to the crossbeam on the side of the conveyor belt, which avoids rigid collision damage to the equipment and ensures the sealing of the partition, thus extending the service life of key components.

[0026] (4) Compact structure and easy maintenance: The translation cylinder and guide bracket are integrated into the support base, reducing the risk of external interference; the air circuit system controlled by the three-position five-way solenoid valve simplifies the action logic, reduces the failure rate, and reduces maintenance costs by 40%.

[0027] (5) Strong adaptability: The center line of the discharge port is aligned with the guide channel, which can be adapted to different sizes of cup / canned porridge. The shape can be quickly changed by adjusting the cylinder stroke and the guide plate spacing to meet the production needs of multiple varieties.

[0028] It should be noted that the structures not described in this utility model are the same as or can be implemented using existing technology, and will not be elaborated here, as they do not involve the design points and improvement directions of this utility model. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall material feeding structure of this utility model;

[0030] Figure 2 This is a schematic diagram of the material guiding mechanism of this utility model;

[0031] Figure 3 This is a schematic diagram of the material transfer mechanism of this utility model;

[0032] Figure 4 This is a schematic diagram of the structure of this utility model during overall transportation.

[0033] Explanation of the labels in the diagram:

[0034] 1. Frame; 2. Main conveyor belt;

[0035] 3. Material guiding mechanism; 31. First arc-shaped guide plate; 32. Second arc-shaped guide plate; 33. Third arc-shaped guide plate;

[0036] 4. Material transfer mechanism; 41. Support base; 42. Pneumatic control unit;

[0037] 43. First execution unit; 431. First lifting cylinder; 432. Translation cylinder; 433. Guide bracket; 434. Bearing plate; 435. Material discharge port; 436. Opening and closing stop block;

[0038] 44. Second execution unit; 441. Second lifting cylinder; 442. Blocking plate. Detailed Implementation

[0039] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the utility model will be more thorough and complete.

[0040] I. Component Installation and Structural Configuration

[0041] 1. Installation of frame and main conveyor belt:

[0042] The frame 1 is made of welded metal frame, with the main conveyor belt 2 horizontally fixed at the top. The surface of the conveyor belt is covered with an anti-slip silicone layer and is driven by a motor to run at a constant speed.

[0043] Limiting guards are set on both sides of the main conveyor belt 2. The side beams are made of aluminum alloy profiles and have grooves on the surface that match the flexible sealing strip of the blocking plate 442.

[0044] 2. Installation of material guiding mechanism:

[0045] The first arc-shaped guide plate 31 is fixed along the outer edge of the main conveyor belt 2 by bolts, and the second arc-shaped guide plate 32 is fixed to the inner edge. The distance between the two is determined by the diameter of the nutrient porridge cup, for example, 80 mm.

[0046] Five third arc-shaped guide plates 33 are installed at equal intervals between the first and second guide plates via adjustable brackets, forming six guide channels with uniform width. The channel width is adjustable to accommodate cup diameters of 80-120mm.

[0047] 3. Installation of material transfer mechanism:

[0048] The support base 41 is fixed to the side of the main conveyor belt 2 by a flange. The first lifting cylinder 431 and the second lifting cylinder 441 are vertically installed inside the base, and the distance between the axes of the two cylinders is 300mm.

[0049] The piston rod end of the first lifting cylinder 431 is connected to the translation cylinder 432 via a hinge. Guide brackets 433 are welded to both sides of the cylinder body of the translation cylinder 432, and a bearing plate 434 is horizontally fixed between the two brackets.

[0050] The support plate 434 has six discharge ports 435, each with a diameter slightly larger than the outer diameter of the porridge cup. For example, if the cup diameter is 100mm, the discharge port is 105mm. The center line is aligned with the guide channel.

[0051] An opening and closing stop 436 is installed at the end of the piston rod of the translation cylinder 432. The stop is made of polyurethane and the gap between it and the bearing plate 434 is ≤0.5mm when it covers the material drop port 435.

[0052] The piston rod of the second lifting cylinder 441 is fitted with a blocking plate 442, and a 4mm thick silicone sealing strip is embedded at its bottom. The sealing strip has a trapezoidal cross section and is interference-fitted with the groove of the conveyor belt side beam.

[0053] 4. Pneumatic control system connection:

[0054] The air compressor output pressure of the pneumatic control unit 42 is set to 0.6MPa, and is connected to the first lifting cylinder 431, the translation cylinder 432 and the second lifting cylinder 441 respectively through a three-position five-way solenoid valve group.

[0055] The sequence of actions controlled by the solenoid valve group is as follows: the second lifting cylinder 441 presses down first → the first lifting cylinder 431 moves down → the translation cylinder 432 retracts → after the material is dropped, each cylinder resets in sequence.

[0056] II. Operating Steps and Process

[0057] 1. Material sorting and guiding stage:

[0058] After being filled, the nutritious porridge cups are conveyed to the material guiding mechanism 3 entrance via the main conveyor belt 2, and guided into the six channels by the first and second arc-shaped guide plates.

[0059] The gradual curvature of the third arc-shaped guide plate 33 allows the porridge cups to gradually align during the turning process, and the flush design at the outlet end ensures that all six porridge cups arrive at the discharge port 435 of the support plate 434 at the same time.

[0060] 2. Blocking and Localization Phase:

[0061] When all six porridge cups have entered the discharge port 435 area, the pneumatic control unit 42 triggers the second lifting cylinder 441 to press down, and the silicone sealing strip at the bottom of the blocking plate 442 presses against the side beam of the conveyor belt to form a physical barrier and prevent subsequent porridge cups from entering the transfer area.

[0062] The blocking action takes 0.5 seconds, during which the main conveyor belt 2 continues to run, and the porridge cups behind are temporarily stored in the guide channel.

[0063] 3. Material unloading and stacking stage:

[0064] After the second lifting cylinder 441 is in position, the first lifting cylinder 431 is activated, driving the bearing plate 434 to move down 150mm to the bottom of the stacking station to connect with the packaging box conveyor line.

[0065] After the support plate 434 reaches the target position, the translation cylinder 432 drives the opening and closing block 436 to retract horizontally by 50mm, and the six discharge ports 435 open simultaneously. The porridge cup falls accurately into the six holes of the packaging box by gravity, with an error of ≤±1mm.

[0066] 4. Reset and Looping Phase:

[0067] After the material is unloaded, the translation cylinder 432 pushes the opening and closing block 436 to reset and close the material unloading port, and the first lifting cylinder 431 drives the bearing plate 434 to rise to the initial height.

[0068] The second lifting cylinder 441 then raises the blocking plate 442, releasing the conveyor belt partition. The main conveyor belt 2 then transports the next set of six porridge cups to the transfer area. The cycle time can be adjusted according to production needs.

[0069] III. Operational Effectiveness and Technological Advantages

[0070] 1. Precise guidance and zero jamming: The gradual curvature design of the arc-shaped guide plate ensures that the force is even when the porridge cup turns. Combined with the equally spaced channel layout, it ensures that the six porridge cups arrive at the discharge port at the same time, with a position deviation rate of <2%.

[0071] 2. Continuous and efficient operation: Through the alternating action of the blocking plate 442 and the bearing plate 434, the main conveyor belt can achieve continuous material transfer without stopping the machine, with a stacking efficiency of 450 cups / minute, which is 35% higher than traditional equipment.

[0072] 3. Low wear and long service life: The silicone sealing strip makes flexible contact with the conveyor belt crossbeam, reducing the impact force by 70% during the interruption action.

[0073] 4. Synchronous control reliability: The three-position five-way solenoid valve ensures that the cylinder action is strictly executed in the sequence of "blocking → lowering → resetting", with a false action rate of <0.1%, which is suitable for the needs of high-speed production lines.

[0074] IV. Implementation Examples

[0075] Taking a certain porridge production line as an example, the cup diameter is 100mm, and the stacking target is 6 cups per box:

[0076] Adjust the spacing of the third arc-shaped guide plate 33 to 105mm, and set the diameter of the material discharge port 435 to 105mm;

[0077] The stroke of the first lifting cylinder 431 is set to 150mm, and the stroke of the translation cylinder 432 is set to 50mm;

[0078] The pneumatic system pressure was adjusted to 0.6 MPa, and the cycle time was set to 8 seconds;

[0079] Post-run tests showed that it can complete 340 boxes (2040 cups) of material stacking per hour, and the defect rate (misplacement, missing) is reduced to below 0.3%.

[0080] The above-described embodiments are merely illustrative of certain implementations of this utility model, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A feeding device for a porridge topping machine, comprising a frame (1), characterized in that: The main conveyor belt (2) is horizontally arranged on the top of the frame (1), and a material guiding mechanism (3) and a material transfer mechanism (4) are arranged above the conveying plane of the main conveyor belt (2). The material guiding mechanism (3) includes a first arc-shaped guide plate (31) set along the outer edge of the main conveyor belt (2) and a second arc-shaped guide plate (32) set along the inner edge of the main conveyor belt (2). Five third arc-shaped guide plates (33) are set at equal intervals between the first arc-shaped guide plate (31) and the second arc-shaped guide plate (32) to form six parallel guide channels. The outlet ends of each guide channel are flush. The material transfer mechanism (4) includes a support base (41) fixed to the side of the main conveyor belt (2), and a pneumatic control unit (42) is provided on the support base (41). The pneumatic control unit (42) is connected to the first execution unit (43) and the second execution unit (44) respectively through air pipes. The first execution unit (43) includes a first lifting cylinder (431) vertically arranged in the support base (41). The piston rod end of the first lifting cylinder (431) is connected to a translation cylinder (432). The translation cylinder (432) has guide brackets (433) on both sides of the cylinder body. A bearing plate (434) is fixed between the two guide brackets (433). The bearing plate (434) has six material drop ports (435). The piston rod end of the translation cylinder (432) is provided with an opening and closing stop block (436) that cooperates with the material drop ports (435). The second execution unit (44) includes a second lifting cylinder (441) vertically arranged in the support base (41), and the piston rod end of the second lifting cylinder (441) is connected to a blocking plate (442) that can cover the side of the main conveyor belt (2). The pneumatic control unit (42) and the first execution unit (43) and the second execution unit (44) are controlled by timing logic to realize the alternating action of the blocking plate (442) pressing down to isolate and the bearing plate (434) dropping material.

2. The material feeding device for a nutritious porridge topping machine according to claim 1, characterized in that: The pneumatic control unit (42) includes an air compressor and an electromagnetic control valve group, wherein the electromagnetic control valve group uses a three-position five-way electromagnetic valve to realize the sequential control of cylinder action.

3. The material feeding device for a nutritious porridge topping machine according to claim 1, characterized in that: The bottom of the blocking plate (442) is provided with a flexible sealing strip. The cross-sectional shape of the flexible sealing strip matches the outline of the side beam of the main conveyor belt (2). The material of the flexible sealing strip is silicone or polyurethane, and its thickness is 3-5mm.

4. The material feeding device for a porridge topping machine according to claim 1, characterized in that: The width of the guide channel is formed by the gradual change in the curvature radius of the first arc-shaped guide plate (31), the second arc-shaped guide plate (32) and the third arc-shaped guide plate (33) to adapt to the turning and conveying of materials.

5. The material feeding device for a porridge topping machine according to claim 1, characterized in that: The center line of the material drop port (435) of the bearing plate (434) coincides with the center line of the corresponding guide channel.

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