Automated preform packaging system and method

Abstract

The present invention discloses an automated preform packaging system and method, comprising a transport device for sequentially moving a plurality of preforms at a position where a preform-taking robot places the preforms to a designated location; a transmission component comprising a conveyor belt and a power device, wherein the conveyor belt is connected to the power device; a side-taking robot is arranged between the transport device and the conveyor belt, wherein the side-taking robot grabs the bottle mouth of the preform on the transport device and transfers it to the conveyor belt for transportation; a packaging robot is arranged in front of the conveying direction of the conveyor belt, wherein the packaging robot grabs the bottle body of the preform on the transport device and transfers it into the packaging box at an angle where the bottle body of the preform is parallel to the bottom of the packaging box; and a control system is connected to the transport device, the power device, the side-taking robot and the packaging robot, thereby improving the efficiency of preform packaging and the space utilization rate of the packaging box.

Description

Technical Field

[0001] The present invention relates to the technical field of fully automatic packaging, and in particular to an automatic preform packaging system and method. Background Art

[0002] At present, in the intelligent and fully automatic production process of bottle preforms, the bottle preforms will enter the packaging production line for the preform removal and boxing process after injection molding. In this process, the bottle preforms that have been injected and cooled need to be transferred to the packaging boxes in batches.

[0003] In the prior art, after the injection molding is completed, the preforms are generally transported to the packaging production line in a vertical state, and then transferred to the linear conveyor belt on the packaging production line for transportation. During the transportation process, the vertical preforms are grabbed by a robotic arm, and after the preforms are lifted to a certain height, they are horizontally moved to the top of the packaging box, and then the preforms are vertically moved downward until they fall into the packaging box. In this process, the movement path of the robotic arm is relatively long, so the process of grabbing and transferring by the robotic arm in a single time takes a long time, resulting in the inability to improve the packaging efficiency.

[0004] Secondly, the bottle preforms are stacked vertically in the packaging box, the contact area between the bottom of the bottle preforms and the packaging box is small and the surface is unstable, resulting in poor stability of the bottle preforms in the packaging box. The bottle preforms are easy to tilt in the packaging box, affecting the subsequent normal packing process; and the bottle preforms are generally cylindrical in structure, and the bottle preforms are placed in the packaging box at an angle perpendicular to the bottom of the packaging box, so that the area occupied by a single bottle preform in the packaging box is too large, and the number of bottle preforms in a packaging box is small, resulting in the spacing between connected bottle preforms in the packaging box cannot be used, and the space utilization rate in the packaging box is low.

[0005] In addition, the robot generally transports the preforms by grabbing the bottle mouth. If the preforms are rotated and placed horizontally into the packaging box in this grabbing method, the grabbing end of the robot will not be able to enter the limited space of the packaging box due to its large size, making it impossible to stably stack the preforms in the packaging box, resulting in low efficiency in the packaging process of the preforms. Summary of the invention

[0006] In order to overcome the deficiencies of the prior art, one of the objectives of the present invention is to provide an automated preform packaging system, which can improve the efficiency of preform packaging and improve the space utilization of the packaging box.

[0007] A second object of the present invention is to provide an automated preform packaging method.

[0008] One of the purposes of the present invention is achieved by the following technical solution:

[0009] An automated preform packaging system for automatic transportation and packaging of preforms after molding, comprising:

[0010] The transport device is located at the place where the preform taking robot in the preform forming device places the preform, and is used to receive the preform on the preform taking robot and move the preform to a designated location;

[0011] A conveying assembly, comprising a conveyor belt and a power device, wherein the conveyor belt is connected to the power device;

[0012] A side-taking robot, disposed between the transport device and the conveyor belt, the side-taking robot grabs the mouth of the preform on the transport device and transfers it to the conveyor belt for transport;

[0013] A packing robot, arranged in front of the conveying direction of the conveyor belt, the packing robot grabs the bottle body of the preform on the transport equipment, and transfers the bottle body of the preform into the packaging box at an angle parallel to the bottom of the packaging box;

[0014] A control system is connected to the transport equipment, the power equipment, the side-taking robot and the box-packing robot.

[0015] Furthermore, the conveying assembly includes two conveyor belts arranged side by side, the side-picking robot sequentially grabs the bottle mouths of multiple groups of bottle preforms from the transportation equipment and releases the multiple groups of bottle preforms alternately on the two conveyor belts in sequence; and the boxing robot alternately grabs the bottle body of each group of bottle preforms on the two conveyor belts and transfers each group of bottle preforms into a packaging box.

[0016] Furthermore, the gripping end of the side-picking robot is fixed with multiple connecting rods arranged side by side, each connecting rod is distributed with multiple suction nozzles, and the intervals between the suction nozzles connected on each connecting rod are the same, so that the suction nozzles on the gripping end of the side-picking robot are distributed in a matrix.

[0017] Furthermore, the side-picking robot releases one row of preforms in a group of preforms each time, and after each row of preforms is released, its gripping end moves to a position close to the surface of the conveyor belt for the next row of preforms before releasing the row of preforms, until each row of preforms at the gripping end is released sequentially onto the same conveyor belt.

[0018] Furthermore, the control system controls the conveyor belt in transportation to temporarily pause according to the time interval of releasing each row of preforms by the side-taking robot.

[0019] Furthermore, the packing robot grabs the bottle bodies of multiple bottle preforms on the conveyor belt in batches when the conveyor belt temporarily stops.

[0020] The second object of the present invention is achieved by adopting the following technical solution:

[0021] An automated preform packaging method, characterized in that it is applied in the automated preform packaging system as described above, comprising:

[0022] Step S1: the transport device transports a group of preforms placed at the place where the preform taking robot places the preforms to the grasping range of the side taking robot;

[0023] Step S2: the side-taking robot grasps the mouths of a group of preforms at the same time, and tightens the distance between the single-row preforms to the same spacing as the conveyor belt, and turns its grasping end to make the preforms parallel to one of the conveyor belts, and when the conveyor belt temporarily pauses according to the time interval for releasing the preforms, the side-taking robot releases the row of preforms closest to the surface of the conveyor belt on the conveyor belt until a group of preforms is completely released;

[0024] Step S3: the conveyor belt from which the preforms have been released in step S2 transports the preforms to the grasping range of the box packing robot, and the box packing robot grabs the preforms on the conveyor belt in batches and transfers them to the packaging box until a group of preforms on the conveyor belt is completely transferred; during this period, while the side-picking robot grabs the preforms, the process returns to and executes steps S1 and S2, and the side-picking robot grabs another group of preforms and releases them on another conveyor belt for transportation, so that after the box packing robot grabs the preforms on one conveyor belt, it moves alternately to another conveyor belt to grab and transfer the preforms on the conveyor belt.

[0025] Furthermore, the transport method of the transport equipment is as follows: after the side-picking robot completes the action of grabbing a group of bottle preforms on the transport equipment, the transport equipment starts to return to the place where the embryo-picking robot places the embryos to load materials, and before the side-picking robot completes the action of releasing a group of bottle preforms, another group of bottle preforms is transported again to the grabbing range of the side-picking robot.

[0026] Furthermore, the method for the side-taking robot to release the preform is:

[0027] Step S11: the side-taking robot controls the gripping end thereof to move and rotate to an inclined angle perpendicular to the conveyor belt, so that a row of preforms located at the lowest end of the gripping end is close to the surface of the conveyor belt;

[0028] Step S12: releasing a row of preforms on the gripping end that is closest to the conveyor belt surface;

[0029] Step S13: After a row of preforms is released, the gripping end is controlled to move downward at the same inclination angle until the next row of preforms approaches the surface of the conveyor belt, and the process returns to step S12. The gripping end is controlled to return to its original state until a group of preforms is released.

[0030] Furthermore, the method by which the packing robot transfers the preform to the packaging box is:

[0031] The packing robot grabs the preforms on the conveyor belt when the conveyor belt temporarily stops, and releases the preforms horizontally into the packaging box, so that the preforms on the upper layer of the packaging box are stacked in order in the gaps between the connected preforms on the lower layer.

[0032] Compared with the prior art, the present invention has the following beneficial effects:

[0033] Through the cooperation between the side-picking robot and the packing robot, the side-picking robot picks up the bottle mouth of the preform, takes the preform out of the transport equipment and releases it on the conveyor belt, and the packing robot picks up the preform and puts it horizontally into the packaging box. This process improves the packaging efficiency and the space utilization of the packaging box. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is a schematic diagram of the overall structure of the preform packing system in the first embodiment of the present invention;

[0035] Figure 2 It is a schematic diagram of the structure of the transport equipment in the first embodiment of the present invention;

[0036] Figure 3 for Figure 1 A partial enlarged view of point I in the middle;

[0037] Figure 4 This is a schematic diagram of the structure of the gripping end releasing the preform on the conveyor belt in the first embodiment of the present invention (both conveyor belts are in a horizontal state);

[0038] Figure 5 This is a schematic diagram of the structure of a packing robot grabbing a preform on a conveyor belt in Embodiment 1 of the present invention (both conveyor belts are in a horizontal state);

[0039] Figure 6 A schematic side view of the structure of two conveyor belts in Embodiment 1 of the present invention (the two conveyor belts are inclined relative to each other);

[0040] Figure 7 This is a schematic diagram of the structure of the gripping end releasing the preform on the conveyor belt in the first embodiment of the present invention (the two conveyor belts are relatively inclined);

[0041] Figure 8 This is a structural schematic diagram of a packing robot grabbing a preform on a conveyor belt in Embodiment 1 of the present invention (the two conveyor belts are relatively inclined);

[0042] Fig. 9 The figure is a schematic diagram of the process of the preform packing method in the second embodiment of the present invention.

[0043] In the figure: 1. Forming equipment; 2. Transport equipment; 21. Support frame; 22. Power conveyor belt; 23. Trough body; 3. Conveyor belt; 31. First conveyor belt; 32. Second conveyor belt; 33. Power equipment; 4. Side-taking robot; 41. Grabbing end; 42. Connecting rod; 43. Suction nozzle; 5. Packing robot; 6. Packing box. DETAILED DESCRIPTION

[0044] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0045] Embodiment 1

[0046] like Figures 1 to 8 As shown, an automated preform packing system is applied to the preform placing position of a preform taking robot of a preform forming device 1. In this embodiment, the automated preform packing system comprises a transport device 2, a transmission component, a side taking robot 4, a packing robot 5 and a control system. The control system is respectively connected to the transport device 2, the transmission component, the side taking robot 4 and the packing robot 5 to control each device to cooperate with each other to transfer the injection molded preforms to a packaging box 6, thereby improving the working efficiency of the entire packing system.

[0047] like Figure 2 As shown, the transport device 2 is configured as a conveying trolley, on which a support frame 21 and a power conveyor belt 22 are provided. The support frame 21 is provided with a plurality of troughs 23 arranged in a matrix, each trough 23 being used to accommodate a preform. After the preforms are injection molded in the molding device 1, a group of preforms are grabbed and transferred to the trough 23 of the support frame 21 by the manipulator on the molding device 1. The movement range of the conveying trolley is between the place where the preform taking manipulator of the molding device 1 places the preforms and the conveying assembly. The conveying trolley drives the support frame 21 to move back and forth between the place where the preform taking manipulator of the molding device 1 places the preforms and the conveying assembly through its power conveyor belt 22, so as to transport the preforms on the support frame 21 to the grabbing range of the side-taking manipulator 4 for grabbing by the side-taking manipulator 4.

[0048] The automated preform packaging system includes at least one group of conveying components, and one group of conveying components includes two conveyor belts 3 arranged side by side. Each of the conveyor belts 3 is provided with its own independent power device 33, that is, the two conveyor belts 3 can independently control their pause time, so that when the two conveyor belts 3 advance at a certain speed, the power devices 33 controlling the two conveyor belts 3 independently control their conveyor belts 3 to temporarily stop according to a preset time rule, and control the side-taking robot 4 to release the preforms on the corresponding conveyor belt 3 when the conveyor belt 3 is in a temporarily stopped state, and control the packaging robot 5 to grab the preforms on the corresponding conveyor belt 3 when the conveyor belt 3 is paused, so as to improve the stability of grabbing and releasing the preforms, and realize efficient and smooth packaging action through the cooperation among the side-taking robot 4, the conveyor belt 3 and the packaging robot 5.

[0049] A side-taking robot 4 is provided between the transport device 2 and the conveyor belt 3. The side-taking robot 4 is used to grab the bottle mouth of the preform on the transport device 2 and transfer it to the conveyor belt 3 for transportation. The grabbing end 41 of the side-taking robot 4 is fixed with a plurality of connecting rods 42 arranged side by side, and a plurality of suction nozzles 43 are distributed on each of the connecting rods 42. The intervals between the suction nozzles 43 connected on each of the connecting rods 42 are the same, so that the suction nozzles 43 on the grabbing end 41 of the side-taking robot 4 are distributed in a matrix; and the number and matrix distribution pattern of the suction nozzles 43 are consistent with the number and distribution pattern of the slots 23 on the support frame 21, so that the side-taking robot 4 can grab all the preforms on the support frame 21 at a time, thereby improving the grabbing efficiency.

[0050] The gripping end 41 of the side-taking robot 4 releases each row of preforms on the same conveyor belt 3 in sequence by releasing row by row, that is, the side-taking robot 4 rotates its gripping end 41 to an inclined angle perpendicular to the surface of the conveyor belt 3, so that the lowest row of preforms in a group of preforms is parallel to the surface of the conveyor belt 3, and the gripping end 41 releases a row of preforms closest to the surface of the conveyor belt 3 in a group of preforms each time, and after each row of preforms is released, the gripping end 41 moves to a position where the next row of preforms is close to the surface of the conveyor belt 3 and then releases the row of preforms, until each row of preforms at the gripping end 41 is released on the same conveyor belt 3 in sequence; the gripping method of the side-taking robot 4 can reduce the moving path in the process of releasing the preforms and improve the release efficiency.

[0051] The surface state of the two conveyor belts 3 can be set to a horizontal state where the conveying surface is parallel to the ground, or it can be set to a relatively inclined state; Figure 4 , Figure 5As shown, when the conveyor belt 3 is set as a horizontal conveyor belt 3, the gripping end 41 of the side-taking robot 4 rotates 90° to make the bottle body of the preform on the gripping end 41 parallel to the surface of the conveyor belt 3; and after each row of preforms is released, it moves in a vertical downward direction until the next row of preforms is close to the surface of the conveyor belt 3, and until all the preforms on the gripping end 41 are released, it rotates 90° again to restore the original state to re-grab another group of preforms. When the packing robot 5 grabs the preforms on the conveyor belt 3, the packing robot 5 grabs the bottle body of the preform vertically.

[0052] In this embodiment, in order to reduce the rotation angle of the grabbing end 41 of the side-taking robot 4 and improve the overall packing efficiency, the orthographic projection area of ​​each conveyor belt 3 on the horizontal plane is not zero, and the orthographic projection area of ​​each conveyor belt 3 on the horizontal plane is smaller than the conveying surface area of ​​the conveyor belt 3, that is, the two conveyor belts 3 are set to an inclined state.

[0053] The two conveyor belts 3 can be set to be inclined in the same direction, or the two conveyor belts 3 can be set to be relatively inclined. Figure 6 to Figure 8 As shown, the extended surfaces of the conveying surfaces of the two conveyor belts 3 intersect at a line, and the vertical plane passing through the intersection line is set as the O plane, and the shortest distance between the highest point A on the surfaces of the two conveyor belts 3 and the O plane is greater than the shortest distance between the lowest point B on the surfaces of the two conveyor belts 3 and the O plane, so that a "V"-shaped structure is formed between the conveying surfaces of the two conveyor belts 3. The two conveyor belts 3 are relatively inclined, which can provide sufficient moving space for the side-taking robot 4 to release the preforms, and avoid collision between the grabbing end 41 and the conveyor belt 3 when the two conveyor belts 3 are spaced closely together.

[0054] In addition, the angle between the extended surfaces of the two conveyor belts 3 is set to 60°~160°. In the present embodiment, the angle between the extended surfaces of the two conveyor belts 3 is 120°. If the inclination angle of the conveyor belt 3 is too gentle or even close to a plane, the rotation amplitude of the side-taking robot 4 and the boxing robot 5 will be large, resulting in relatively low efficiency. If the inclination angle of the conveyor belt 3 is too steep or even close to 90°, the preforms will easily fall off after falling on the conveyor belt 3, resulting in poor stability.

[0055] And ensure that the extended surfaces of the two conveyor belts 3 intersect at the O line, and the angles between the vertical plane passing through the O line and the extended surfaces of the two conveyor belts 3 are the same, that is, the inclination angles of the two conveyor belts 3 are the same. In this embodiment, the angles between the conveying surfaces of the two conveyor belts 3 and the horizontal plane are both 30°, which improves the accuracy of the side-taking robot 4 when alternately grabbing the bottle blanks on the two conveyor belts 3.

[0056] In this embodiment, the conveyor belts 3 are used to transport preforms. Since the conveyor belts 3 have a certain inclination angle, in order to prevent the preforms from slipping off the conveyor belts 3 when being transported on the conveyor belts 3, a limiting groove is fixed on the conveying surface of each conveyor belt 3. Each limiting groove corresponds to accommodating a preform, and the limiting groove moves with the conveyor belt 3. Every time the gripping end 41 of the side-taking robot 4 is ready to release the preforms, the control system controls the corresponding conveyor belt 3 to pause, so that a row of preforms corresponds to the limiting grooves on the conveyor belt 3 one by one, thereby improving the release accuracy of the preforms; when a row of preforms is released, the gripping end 41 moves to the next row of preforms to align with the conveyor belt 3, and the control system controls the conveyor belt 3 to move, transport the preforms on the conveyor belt 3 forward, and stop again after a set time interval, so that the next row of preforms can be released on the conveyor belt 3 by the gripping end 41 closely following the previous row of preforms, thereby avoiding the occurrence of vacancies on the conveyor belt 3 that affect the subsequent packing steps.

[0057] In addition, in order to improve the efficiency of preform packing, the control system controls the side-taking robot 4 to grab multiple groups of preforms in sequence and release the multiple groups of preforms alternately on the two conveyor belts 3 in sequence, that is, the previous group of preforms is completely released on the same conveyor belt 3, and the next group of preforms can be released on the other conveyor belt 3, so that the two conveyor belts 3 always keep one of the conveyor belts 3 to transport the preforms after loading to the front for the packing robot 5 to grab, and at the same time the other conveyor belt 3 is loading, so that the packing robot 5 can grab the preforms from the two conveyor belts 3 alternately and in batches, that is, after grabbing a group of preforms in batches from the same conveyor belt 3, move to the other conveyor belt 3 to grab another group of preforms, so as to avoid a long pause in the process of the grabbing end 41 grabbing a new group of preforms, resulting in the conveyor belt 3 being unable to transport enough preforms to the front in time for the packing robot 5 to grab, resulting in low efficiency of the packing robot 5.

[0058] The packing robot 5 is arranged in front of the conveying direction of the conveyor belt 3. When the conveyor belt 3 transports the preforms to the grabbing range of the packing robot 5, the packing robot 5 can grab the bottle body of the preform on the transport device 2 and transfer it to the packaging box 6 at an angle that the bottle body of the preform is parallel to the bottom of the packaging box 6. The packing robot 5 is also connected to the control system. The control system controls the grabbing rhythm of the packing robot 5 to match the transportation time of the two conveyor belts 3, so that it grabs the preforms on the two conveyor belts 3 alternately to avoid the packing robot 5 from being stopped; and because the preforms on the conveyor belt 3 are in an inclined state, the packing robot 5 can be controlled to move to an angle perpendicular to the surface of the conveyor belt 3, so that the packing robot 5 directly grabs the bottle body of the preform and transfers it to the packaging box 6 in batches; the packing robot 5 grabs the position of the bottle body of the preform so that the preform is stacked in the packaging box 6 in a manner parallel to the bottom of the packaging box 6, thereby improving the space utilization rate of the packaging box 6.

[0059] Embodiment 2

[0060] An automated preform packaging method is applied in the automated preform packaging system as described in Example 1, which can maximize the working efficiency of the entire packaging system. In addition, in order to distinguish the two conveyor belts 3 in the preform packaging conveyor system described in Example 1, the two conveyor belts 3 are respectively named as the first conveyor belt 31 and the second conveyor belt 32 in this embodiment.

[0061] like Fig. 9 As shown, the automated preform packaging method of this embodiment specifically includes the following steps:

[0062] Step S1: the transport device 2 transports a group of preforms from the place where the preform-taking robot places the preforms to the grasping range of the side-taking robot 4; wherein the transport method of the transport device 2 is as follows: the robot on the molding device 1 grabs a group of preforms and transfers them to the trough 23 of the support frame 21, the transport device 2 transports a group of preforms to a designated position close to the side-taking robot 4, and after the side-taking robot 4 completes the action of grabbing a group of preforms on the transport device 2, the transport device 2 starts to return to the place where the preform-taking robot places the preforms for loading, and transports another group of preforms to the grasping range of the side-taking robot 4 before the side-taking robot 4 completes the action of releasing a group of preforms, and uses the time when the side-taking robot 4 releases the preforms to transport another group of preforms out, so that the side-taking robot 4 can grab another group of preforms immediately after releasing a group of preforms, thereby improving the continuity of the side-taking robot 4 and the packing efficiency.

[0063] Step S2: the side-taking robot 4 simultaneously grabs the mouths of a group of preforms on the transport device 2, and tightens the distance between the single-row preforms to the distance corresponding to the upper limit groove on the conveyor belt 3, and then turns over its grabbing end 41 to make the preforms parallel to the first conveyor belt 31. When the first conveyor belt 31 temporarily pauses according to the time interval for releasing the preforms, the side-taking robot 4 releases a row of preforms closest to the surface of the first conveyor belt 31 on the surface of the first conveyor belt 31, and so on until a group of preforms is completely released.

[0064] The method for releasing the preform by the side-taking robot 4 is as follows:

[0065] Step S11: the side-taking robot 4 controls the gripping end 41 thereof to move and rotate to an inclined angle perpendicular to the first conveyor belt 31 , so that a row of preforms located at the lowest end of the gripping end 41 is close to the surface of the first conveyor belt 31 ;

[0066] Step S12: releasing a row of preforms on the gripping end 41 that is closest to the surface of the first conveyor belt 31; at this time, the first conveyor belt 31 is paused at a preset time interval, so that a row of preforms located at the lowest end of the gripping end 41 can be stably released on the first conveyor belt 31;

[0067] Step S13: After a row of preforms is released, the gripping end 41 is controlled to move downward at the same inclination angle until the next row of preforms approaches the surface of the first conveyor belt 31, and the first conveyor belt 31 continues to move forward during the movement of the gripping end 41; thereafter, the process returns to step S12 to release a row of preforms closest to the surface of the first conveyor belt 31, until the gripping end 41 completes the release of a group of preforms, and then the gripping end 41 is controlled to return to its original state to grip another group of preforms.

[0068] Step S3: the first conveyor belt 31 from which the preforms have been released in step S2 transports the preforms to the grasping range of the packing robot 5. The packing robot 5 grasps the bottle bodies of the preforms on the first conveyor belt 31 when the first conveyor belt 31 temporarily stops, and releases the preforms horizontally into the packaging box 6, so that the preforms on the upper layer in the packaging box 6 are stacked in order in the gaps between the connected preforms on the lower layer. Step S3 is repeated until a group of preforms on the first conveyor belt 31 are completely transferred.

[0069] During this period, while the side-taking robot 4 grabs and releases the preforms, the process returns to and executes step S1 and step S2. The transport device 2 returns to the place where the preform-taking robot puts the preforms to transport another group of preforms out, and uses the side-taking robot 4 to grab the group of preforms and release them on the second conveyor belt 32 for transportation. After the packing robot 5 grabs the preforms on the first conveyor belt 31, it immediately moves to the second conveyor belt 32 to grab and transfer the preforms on the second conveyor belt 32, so that the grabbing and releasing actions of the packing robot 5 are more coherent, and the packing efficiency is improved at the same time.

[0070] In this embodiment, the side-taking robot 4 releases multiple groups of preforms alternately onto the two conveyor belts 3, that is, during the loading process of the first conveyor belt 31, the second conveyor belt 32 transports the loaded preforms to the front, allowing the boxing robot 5 to grab the preforms on the second conveyor belt 32 and transfer them to the packaging box 6; when a group of preforms on the second conveyor belt 32 are all transferred to the packaging box 6, the first conveyor belt 31 completes the loading action and transports the preforms to the front, at which time the boxing robot 5 switches the grabbing direction to grab the preforms on the first conveyor belt 31; the boxing steps are circulated in the above method, so that the boxing rhythm of the boxing robot 5 is compact, avoiding the boxing robot 5 from being idle, and maximizing the working efficiency of the entire boxing system.

[0071] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. An automated preform packaging system for automatic transportation and packaging of preforms after molding, characterized in that: include: The transport device is located at the place where the preform taking robot in the preform forming device places the preform, and is used to receive the preform on the preform taking robot and move the preform to a designated location; A conveying assembly, comprising a conveyor belt and a power device, wherein the conveyor belt is connected to the power device; A side-taking robot is provided between the transport device and the conveyor belt. The side-taking robot grabs the bottle mouth of the preform on the transport device. The grabbing end of the side-taking robot rotates 90 degrees to make the bottle body of the preform on the grabbing end parallel to the surface of the conveyor belt, and transfers it to the conveyor belt for transportation. A packing robot is arranged in front of the conveying direction of the conveyor belt, and the packing robot grabs the bottle preforms on the conveyor belt and transfers the bottle preforms into the packaging box at an angle that the bottle bodies are parallel to the bottom of the packaging box; A control system connected to the transport equipment, the power equipment, the side-taking robot and the boxing robot; The conveying assembly includes two conveyor belts arranged side by side, and a "V"-shaped structure is formed between the conveying surfaces of the two conveyor belts. The side-picking robot sequentially grabs the bottle mouths of multiple groups of bottle preforms from the transport equipment and releases the multiple groups of bottle preforms alternately on the two conveyor belts in sequence; and the boxing robot alternately grabs each group of bottle preforms on the two conveyor belts and transfers each group of bottle preforms into a packaging box; The side-picking robot releases one row of preforms in a group of preforms each time, and after each row of preforms is released, its gripping end moves to a position close to the surface of the conveyor belt for the next row of preforms before releasing the row of preforms, until each row of preforms at the gripping end is released sequentially onto the same conveyor belt.

2. The automated preform packaging system according to claim 1, characterized in that: The gripping end of the side-picking robot is fixed with multiple connecting rods arranged side by side, each of the connecting rods is distributed with multiple suction nozzles, and the intervals between the suction nozzles connected on each connecting rod are the same, so that the suction nozzles on the gripping end of the side-picking robot are distributed in a matrix.

3. The automated preform packaging system according to claim 1, characterized in that: The control system controls the conveyor belt in transportation to temporarily pause according to the time interval of releasing each row of preforms by the side-taking robot.

4. The automated preform packaging system according to claim 3, characterized in that: The packing robot grabs a plurality of preforms on the conveyor belt in batches when the conveyor belt temporarily stops.

5. An automated preform packaging method, characterized in that: The automatic preform packaging system as claimed in any one of claims 1 to 4 comprises: Step S1: the transport device transports a group of preforms placed at the place where the preform taking robot places the preforms to the grasping range of the side taking robot; Step S2: the side-taking robot grasps the mouths of a group of preforms at the same time, and tightens the distance between the single-row preforms to the same spacing as the conveyor belt, and turns its grasping end to make the preforms parallel to one of the conveyor belts, and when the conveyor belt temporarily pauses according to the time interval for releasing the preforms, the side-taking robot releases the row of preforms closest to the surface of the conveyor belt on the conveyor belt until a group of preforms is completely released; Step S3: the conveyor belt from which the preforms have been released in step S2 transports the preforms to the grasping range of the box packing robot, and the box packing robot grabs the preforms on the conveyor belt in batches and transfers them to the packaging box until a group of preforms on the conveyor belt is completely transferred; during this period, while the side-picking robot grabs the preforms, it returns to and executes steps S1 and S2, grabs another group of preforms by the side-picking robot and releases them on another conveyor belt for transportation, so that after the box packing robot grabs the preforms on one conveyor belt, it moves alternately to another conveyor belt to grab and transfer the preforms on the conveyor belt.

6. The automated preform packaging method according to claim 5, characterized in that: The transport method of the transport equipment is as follows: after the side-picking robot completes the action of grabbing a group of preforms on the transport equipment, the transport equipment starts to return to the place where the preform-picking robot places the preforms to load materials, and before the side-picking robot completes the action of releasing a group of preforms, another group of preforms is transported to the grabbing range of the side-picking robot again.

7. The automated preform packaging method according to claim 5, characterized in that: The method for releasing the preform by the side-taking robot is as follows: Step S11: the side-taking robot controls the gripping end thereof to move and rotate to an inclined angle perpendicular to the conveyor belt, so that a row of preforms located at the lowest end of the gripping end is close to the surface of the conveyor belt; Step S12: releasing a row of preforms on the gripping end that is closest to the conveyor belt surface; Step S13: After a row of preforms is released, the gripping end is controlled to move downward at the same inclination angle until the next row of preforms approaches the surface of the conveyor belt, and the process returns to step S12. The gripping end is controlled to return to its original state until a group of preforms is released.

8. The automated preform packaging method according to claim 5, characterized in that: The method for the packing robot to transfer the preform to the packaging box is: The packing robot grabs the bottle body of the preform on the conveyor when the conveyor stops temporarily, and releases the preform horizontally into the packaging box, so that the preforms on the upper layer in the packaging box are stacked in order in the gaps between the connected preforms on the lower layer.

Images