Wide Mouth Plastic Cup Production Line

Abstract

The invention discloses a wide-mouth plastic cup production line, which is directly arranged on the front side of an injection-blowing machine with a compact structure, and comprises: a material-taking manipulator in front of the injection molding machine, a circulation workbench placed on the ground and capable of being touched by the manipulator at one end, a directional guide component fixedly arranged at the other end of the circulation workbench, a stacked cup unloading component fixedly arranged below the output end of the directional guide component, and a box receiving component arranged below the stacked cup unloading component; after the plastic cups are formed, they are placed on the circulation workbench by the material-taking manipulator, and the conveyor belt of the circulation workbench transfers the plastic cups to the directional guide component, and the directional guide component ensures that the plastic cups enter the stacked cup unloading component in the same direction, and during the falling process of the plastic cups, they are blocked by the coding component and then the bottom of each plastic cup is sprayed with a mark, and the sprayed plastic cups continue to fall, and when the set number is reached, the stacked cup unloading component starts unloading, and the corresponding box receiving component receives them.

Description

Technical Field

[0001] The invention belongs to the technical field of plastic cup production, and in particular relates to a production line for wide-mouth plastic cups. Background Art

[0002] Wide-mouth plastic cups (non-disposable plastic cups) have a wall thickness of 2 to 4 mm and can be nested with each other. They have a texture similar to that of glass cups, and their anti-fall performance and product production cost are superior to those of glass cups, so they are very popular in the market. The production process of wide-mouth plastic cups generally includes: injection blow molding, visual inspection, coding, cup stacking, and packaging into boxes. At present, the two processes of cup stacking and packaging into boxes in the whole set of flow processes require manual intervention. The Chinese invention patent with authorization announcement number CN111332553B discloses an integrated equipment for preparing, counting and packaging plastic cups. The equipment is mainly aimed at disposable plastic cups, and mainly solves the problem of automatic induction counting and film sealing packaging of plastic cups. The induction counting uses the induction signal after the touch of the extended reinforcement part of the mouth of the disposable plastic cup, while the mouth of the wide-mouth plastic cup generally does not need to be extended and strengthened, so it is not suitable for counting using this method. In addition, since it is much heavier than disposable plastic cups in weight, it generally does not need to be sealed after stacking but needs to be packaged into boxes. In addition, the products in the flow operation of the equipment are all arranged horizontally, resulting in large space occupation. Summary of the invention

[0003] In view of the defects of the above-mentioned prior art, the technical problem to be solved by the present invention is to provide a wide-mouth plastic cup production line, which occupies a small space, and the counting, cup stacking, and packaging into boxes all utilize the characteristics of the product itself, and the overall production line runs continuously without pause.

[0004] The invention objective of the present invention is achieved through the following technical scheme: a wide-mouth plastic cup production line, which is directly arranged on the front side of an injection-blowing machine with a compact structure, comprising: a material-taking manipulator in front of the injection molding machine, a circulation workbench placed on the ground and the manipulator can touch one end of which, a directional guide component fixedly arranged at the other end of the circulation workbench, a stacked cup unloading component fixedly arranged below the output end of the directional guide component, a coding component arranged in the middle of the stacked cup unloading component, and a box receiving component arranged below the stacked cup unloading component; after the plastic cup is completed in molding, it is placed on the circulation workbench by the material-taking manipulator, and the conveyor belt of the circulation workbench transfers the plastic cup to the directional guide component, the directional guide component ensures that the plastic cup enters the stacked cup unloading component in the same direction, and during the falling process of the plastic cup, it is blocked by the coding component and then the bottom of each plastic cup is sprayed with a mark, and the sprayed plastic cups continue to fall, and when the set number is reached, the stacked cup unloading component starts unloading, and the corresponding box receiving component receives it.

[0005] Preferably, the directional guide assembly includes a mounting plate fixed to the end of the circulation workbench, two guardrails, one end of which is fixed to the mounting plate and the other end of which is fixed to the circulation workbench, a guard member arranged on one side of the guardrail fixed to the mounting plate and fixed to the mounting plate, two parallel directional guide rods, each of which is located below the guard member and has a spacing less than the maximum diameter of a plastic cup, and is rotatably fixed to the mounting plate at one end and has the other end inclined downward to form a certain angle, a fixed mounting seat for rotatably mounting the directional guide rods, two transmission gears coaxially fixed to the two directional guide rods and meshing with each other on the inner side of the fixed mounting seat, a driving motor transmission-connected to one of the directional guide rods on the outer side of the fixed mounting seat, an angle bracket fixed to the circulation workbench at one end and used to connect and support the fixed mounting seat at the other end, a transmission belt located below the directional guide rod, one end of which is rotatably fixed to the circulation workbench through a support and the other end of which is fixed to the angle bracket, a transmission member that is led out from one of the directional guide rods through a pulley drive, converted to a bevel gear and then converted to the transmission belt.

[0006] Preferably, the two directional guide rods have a section at one end close to the transmission gear whose diameter is reduced to a point where the distance between them is smaller than the maximum diameter of the plastic cup, thereby forming a material drop zone.

[0007] Preferably, the cup stacking and unloading assembly includes a cup stacking tube which is sleeved and fixed on a fixed mounting seat below the blanking area, and a connecting seat fixed at the foot of the circulating workbench for fixing the cup stacking tube; the length of the cup stacking tube is close to the foot of the circulating workbench and the lower end is offset toward one end of the foot of the workbench, the upper part of the overall cup stacking tube is in an outwardly tilted shape, the high end entrance of the cup stacking tube is in an outwardly expanded open shape, and the lower end toward the side of the circulating workbench has an inwardly split section, and the inwardly split section is further down to the lowest end, which is an outwardly split section facing away from the circulating workbench.

[0008] Preferably, the stacked cup unloading assembly also includes two guide rails fixedly arranged on the two cut edges of the outward cut section and extending upward, and a unloading half-circle cylinder that slides with the guide rails by fixing guide pins at the upper and lower ends respectively; the overall cross-section of the unloading half-circle cylinder is semicircular, and the two long straight sides have limit baffles matching the guide rails, and the guide pins are fixedly installed at the upper and lower ends of the limit baffles respectively, and after the unloading half-circle cylinder cooperates with the guide rails, elastic band mounting buckles are fixedly arranged on both sides of the upward end and unloading flip gears are fixedly arranged on both sides of the downward end, a hinge shaft is coaxially fixedly connected between the two unloading flip gears, and a support plate is fixedly arranged on the inner wall of the unloading half-circle cylinder on one side of the unloading flip gear.

[0009] Preferably, the middle part of the unloading half-circle cylinder is two arc-shaped flip doors which can be flipped to both sides respectively, a magnetic strip is fixed on one side where the two arc-shaped flip doors intersect, an opening and closing trigger shaft is fixed on one side where the unloading flip gear is installed of the two arc-shaped flip doors, and an avoidance hole is provided at the unloading half-circle cylinder position corresponding to the opening and closing trigger shaft.

[0010] Preferably, the unloading half-circle cylinder also includes a cylinder reset part fixedly arranged on the connecting seat; the cylinder reset part includes two racks arranged corresponding to the position of the unloading flip gear, and a triangular lifting plate protruding upward is respectively provided on the inner side of the two racks, and a reset cylinder is fixedly arranged on the side of the two racks facing the flow workbench, and a receiving seat is fixed on the connecting seat between the two racks; the receiving seat has a groove matching the hinge shaft, and the receiving seat is made of elastic plastic material. When the hinge shaft falls with gravity, the position of the hinge shaft corresponds to the groove of the receiving seat, and can be squeezed into the groove under the action of gravity. When the hinge shaft falls into the groove, the outer hypotenuse of the two triangular lifting plates just contacts with the hinge shaft.

[0011] Preferably, an elastic band retractable roll that can rotate at a certain angle is fixedly provided at the highest point of the cup stacking tube near the guide rail, the elastic band retractable roll has a coil spring inside, the elastic band is retracted by the coil spring, the elastic band itself is also elastic, and the exposed end of the elastic band is fixedly connected to the elastic band mounting buckle.

[0012] Preferably, the connecting seat is provided with a recessed avoidance notch for unloading the half-circle cylinder when it flips downward, and the connecting seat is provided with two arc grooves at the lower end surface of the avoidance notch for the corresponding movement of the opening and closing trigger shafts when the two arc-shaped flip doors are opened. A trigger pin protruding upward is fixedly set in the avoidance notch, and the diameter of the upper end of the trigger pin is the smallest and gradually increases downward to form a cone as a whole. The position of the trigger pin corresponds to the center of the two opening and closing trigger shafts, and it is set so that when the unloading half-circle cylinder flips downward to the far end below the horizontal position, the trigger pin enters between the two opening and closing trigger shafts.

[0013] Preferably, a rotation reset member is respectively provided at the ends of the two arc-shaped grooves; and a cylinder stopper is fixedly provided on the cup stacking tube between the inwardly split section and the outwardly split section and toward the side of the transfer workbench.

[0014] In summary, the present invention has the following advantages compared with the prior art:

[0015] The assembly line of the present invention is directly arranged on the front side of the injection-blowing machine with a compact structure, and directional guidance, coding, and cup stacking and unloading are respectively provided, so as to form a complete assembly line from molding to packaging. The directional guidance component can be quickly transferred in a conveying manner, and its coding is interspersed in the process of cup stacking, and the cup stacking can be unloaded at the same time as it is completed, so the overall flow speed has almost no stagnation, and the height difference of the flow table is used for cup stacking and unloading arrangement, so that the overall space occupancy is small, that is, this solution can be arranged in each injection-blowing machine, thereby reducing turnover; in addition, the unloading is a parallel fall at a position close to the horizontal, which has the advantages of stability and accuracy compared with the sliding method of falling into the packaging box, and there will be no single point collision and scattering of stacked cups. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the present invention (the injection-blowing integrated machine is hidden);

[0017] Figure 2 yes Figure 1 A partial enlarged view of the middle A;

[0018] Figure 3 It is a schematic diagram of the structure after the directional guide component and the stacking cup unloading component are combined;

[0019] Figure 4 It is a schematic diagram of the structure of the present invention;

[0020] Figure 5 yes Figure 4 A partial enlarged view of point C in the middle;

[0021] Figure 6 It is a schematic diagram of the structure after the guide rail and the unloading half-circle cylinder are combined;

[0022] Figure 7 It is a structural diagram of unloading a half-circle cylinder;

[0023] Figure 8 yes Figure 3 A partial enlarged view of point B in the middle;

[0024] Fig. 9 yes Figure 6 A partial enlarged view of point D in the middle;

[0025] Fig.10 It is a schematic diagram of a part of the structure after the directional guide assembly and the cup stacking and unloading assembly are combined;

[0026] Fig.11 It is a schematic diagram of the structure of the cam;

[0027] Fig.12 yes Fig.10 A partial enlarged view of point E in the middle;

[0028] Fig.13 It is a schematic diagram of the structure when the half-circle cylinder is about to be unloaded;

[0029] Fig.14 It is a schematic diagram of the structure at another angle when the half-circle cylinder is about to be unloaded.

[0030] Markings in the figure:

[0031] Retrieving manipulator 10, circulation worktable 20, directional guide assembly 30, stacking cup unloading assembly 40, inkjet assembly 50, box receiving assembly 60, mounting plate 31, guardrail 32, guard 33, directional guide rod 34, fixed mounting seat 35, transmission gear 351, drive motor 352, angle bracket 36, conveyor belt 37, transmission member 38, blanking area 341, stacking cup tube 41, connecting seat 44, inwardly cut section 411, outwardly cut section 412, guide rail 42, guide pin 01, unloading half circle cylinder 43, limit stop bar 431, elastic belt mounting buckle 02, unloading flip gear 03, hinge shaft 04, The support plate 07, the arc-shaped flip door 433, the magnetic strip 434, the opening and closing trigger shaft 05, the avoidance hole 06, the cylinder reset part 45, the rack 451, the triangular lifting plate 452, the reset cylinder 453, the receiving seat 454, the groove 08, the elastic belt telescopic roll 09, the notch 001, the avoidance notch 002, the two arc-shaped grooves 004, the trigger pin 003, the rotation reset part 005, the spray terminal 51, the cam blocking part 52, the reduction transmission part 53, the small pulley 531, the large pulley 532, the cam 521, the compression spring 522, the contact head 523, the guide part 52a, the guide seat 52b, and the cylinder stopper 70. DETAILED DESCRIPTION

[0032] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings:

[0033] Example 1

[0034] The present invention provides a wide-mouth plastic cup production line, which is directly arranged on the front side of the injection-blowing machine with a compact structure, so as to directly detect and package the plastic cups after they are formed, thereby reducing turnover and space occupation; Figure 1-2As shown, it specifically includes: a material taking manipulator 10 in front of the injection molding machine, a flow table 20 at one end of which the manipulator can reach, a directional guide component 30 arranged at the other end of the flow table 20, a stacking cup unloading component 40 arranged below the output end of the directional guide component 30, a coding component 50 arranged in the middle of the stacking cup unloading component 40, and a box receiving component 60 arranged below the stacking cup unloading component 40. The working process of the assembly line is that after the plastic cups are formed, they are placed on the flow table 20 by the material taking manipulator 10, and the conveyor belt of the flow table 20 transfers the plastic cups to the directional guide component 30. The directional guide component 30 ensures that the plastic cups enter the stacking cup unloading component 40 in the same direction. During the falling process of the plastic cups, they are blocked by the coding component 50 and the bottom of each plastic cup is sprayed with a mark. The sprayed plastic cups continue to fall. When the set number is reached, the stacking cup unloading component 40 starts unloading, and the corresponding box receiving component 60 receives them.

[0035] like Figure 2 As shown, the directional guide assembly 30 includes a mounting plate 31 fixed to the end of the flow workbench 20, two guardrails 32, one end of which is fixed to the mounting plate 31 and the other end is fixed to the flow workbench 20, a guard member 33 provided on one side of the guardrail 32 fixed to the mounting plate 31 and fixed to the mounting plate 31, two parallel directional guide rods 34, one end of which is rotatably fixed to the mounting plate 31 and the other end of which is tilted downward to form a certain angle, and a fixed mounting seat 35 for rotatably mounting the directional guide rod 34, and a fixed mounting seat 35 for rotatably mounting the directional guide rod 34. The inner side of the mounting seat 35 is provided with two transmission gears 351 which are coaxially fixedly connected with the two directional guide rods 34 and mesh with each other; a driving motor 352 which is transmission-connected with one of the directional guide rods 34 on the outer side of the fixed mounting seat 35; a corner bracket 36 which is fixed at one end on the flow-through workbench 20 and at the other end for connecting and supporting the fixed mounting seat 35; a transmission belt 37 which is located below the directional guide rods 34 and is rotatably fixed at one end on the flow-through workbench 20 through a support and at the other end on the corner bracket 36; a transmission member 38 which is led out from one of the directional guide rods 34 through a pulley drive, then converted to a bevel gear and then converted to the transmission belt 37;

[0036] The two directional guide rods 34 have a section at one end close to the transmission gear 351, whose diameter is reduced to make the distance between them smaller than the maximum diameter of the plastic cup, thereby forming a drop zone 341; when the directional guide assembly 30 is working, the driving motor 352 drives the two directional guide rods 34 to rotate outward, so that the plastic cups that continuously enter are guided by the guardrail 32 and the shield 33. Since the diameter of the wide-mouth plastic cup is the largest at the mouth, no matter which end of the plastic cup is under the rotation of the directional guide rods 34 and the tilt angle, it will automatically adjust between the two directional guide rods 34 until the bottom of the plastic cup falls into the gap between the two directional guide rods 34, and below the two directional guide rods 34 is the running conveyor belt 37, so the bottom of the plastic cup will be quickly transferred to the side of the drop zone 341 when it touches the conveyor belt 37, and fall from the drop zone 341 in the same direction.

[0037] like Figure 2-3 As shown, the cup stacking and unloading assembly 40 includes a cup stacking tube 41 which is sleeved and fixed on the fixed mounting seat 35 below the material dropping area 341, and a connecting seat 44 which is fixed at the foot position of the transfer workbench 20 and is used to fix the cup stacking tube 41;

[0038] The length of the cup stacking tube 41 is close to the foot of the flow table 20 and the lower end is offset toward one end of the foot of the work table 20. The upper part of the cup stacking tube 41 is tilted outwards. The high end entrance of the cup stacking tube 41 is open outwards. The lower end of the cup stacking tube 41 is provided with an inwardly cut section 411 on the side facing the flow table 20. The inwardly cut section 411 is further downwards to the lowest end, which is an outwardly cut section 412 facing away from the flow table 20.

[0039] The stacking cup unloading assembly 40 also includes two guide rails 42 fixedly arranged at the two cut edges of the outward cut section 412 and extending upward, and a unloading half-circle cylinder 43 that is slidably matched with the guide rails 42 by fixing guide pins 01 at the upper and lower ends respectively; the unloading half-circle cylinder 43 refers to Figure 3 , 6 , 7, 13, the overall cross-section is semicircular, and the two long straight sides have limit stop bars 431 matching the guide rail 42, and the guide pins 01 are respectively fixedly installed on the upper and lower ends of the limit stop bars 431. After the unloading half-circle cylinder 43 cooperates with the guide rail 42, the two sides of the upward end are respectively rotatably fixed with elastic belt mounting buckles 02, and the two sides of the downward end are respectively rotatably fixed with unloading flip gears 03. The hinge shaft 04 is coaxially fixedly connected between the two unloading flip gears 03, and a support plate 07 is fixedly arranged on the inner wall of the unloading half-circle cylinder 43 located on one side of the unloading flip gear 03;

[0040] Reference Fig.14The middle part of the unloading half-circle cylinder 43 is composed of two arc-shaped flip doors 433 that can be flipped to both sides respectively. A magnetic strip 434 is fixed on one side where the two arc-shaped flip doors 433 intersect. An opening and closing trigger shaft 05 is fixed on one side where the unloading flip gear 03 is installed. A avoidance hole 06 is provided at the position of the unloading half-circle cylinder 43 corresponding to the opening and closing trigger shaft 05.

[0041] The unloading half-circle cylinder 43 also includes a cylinder reset member 45 fixedly arranged on the connecting seat 44; Figure 7 The cylinder reset member 45 includes two racks 451 arranged at positions corresponding to the unloading and flipping gears 03, and the inner sides of the two racks 451 are respectively provided with a triangular lifting plate 452 protruding upwards, and a reset cylinder 453 is fixedly arranged on one side of the two racks 451 facing the flow workbench 20, referring to Fig.13 , a receiving seat 454 fixed on the connecting seat 44 between the two racks 451; the receiving seat 454 has a groove 08 matching the hinge shaft 04, and is made of elastic plastic material. When the hinge shaft 04 falls with gravity, the position corresponds to the groove of the receiving seat 454, and can be squeezed into the groove 08 under the action of gravity. When the hinge shaft 04 falls into the groove 08, the outer side of the two triangular lifting plates 452 is just in contact with the hinge shaft 04. The purpose is that in this state, the reset cylinder 453 starts to move forward, and the two triangular lifting plates 452 will resist the hinge shaft 04 to force it to leave the groove 08, and make the unloading half-circle cylinder 43 return to the guide rail 42;

[0042] In order to facilitate the control of the movement of the unloading half-circle cylinder 43 in the guide rail 42, an elastic band retractable roll 09 is fixedly arranged in the cup stacking tube 41 near the highest point of the guide rail 42 and can be rotated at a certain angle. The elastic band retractable roll 09 has a coil spring inside, and the elastic band is retracted by the coil spring. The elastic band itself is also elastic, and the exposed end of the elastic band is fixedly connected to the elastic band mounting buckle 02; in order to allow the unloading half-circle cylinder 43 to unload itself after receiving a certain number of plastic cups, the elastic force of the coil spring of the elastic band and the elastic force of the elastic band itself need to match the weight design of the plastic cups, that is, each time a plastic cup is received, the elastic band retractable roll 09 releases a section of the elastic band until the hinge shaft 04 enters the groove 08. At this time, the stacked plastic cups received are a group, and the number is the number of one discharge. Since the inclined setting of the cup stacking tube 41 can make the unloading half-circle cylinder 43 have a tendency to tip outward after losing the limit of the guide rail, after the hinge shaft 04 falls into the groove 08, the guide pin 01 at the lower part has been separated from the guide rail 42, and the two guide rails 42 corresponding to the guide pin 01 at the upper part are provided with notches 001. In this way, the unloading half-circle cylinder 43 will turn downward around the hinge shaft 04. In order to open the arc-shaped flip door 433 when turning to the required angle so that the stacked plastic cups can fall downward into the packaging box, refer to Figure 8A recessed avoidance notch 002 is provided in the connection seat 44 for unloading the half-circle cylinder 43 when it is turned downward. Two arc grooves 004 are provided at the lower end surface of the avoidance notch 002 in the connection seat 44 for the corresponding movement of the opening and closing trigger shafts 05 when the two arc-shaped flip doors 433 are opened. A trigger pin 003 protruding upward is fixedly set in the avoidance notch 002. The diameter of the upper end of the trigger pin 003 is the smallest and gradually increases downward to form a cone shape as a whole. The position of the trigger pin 003 corresponds to the center of the two opening and closing trigger shafts 05, which is set to be when the unloading half-circle cylinder 43 is turned downward to When the far end is lower than the horizontal position, the trigger pin 003 enters between the two opening and closing trigger shafts 05. At this time, the stacked plastic cups will slide toward the far end because the far end of the unloading half-circle cylinder 43 is lower than the horizontal position, that is, the group of plastic cups completely enters the area of ​​the arc-shaped flip door 433, and the tapered shape of the trigger pin 003 forces the two opening and closing trigger shafts 05 to separate, that is, the two magnetic strips 434 separate, and the two arc-shaped flip doors 433 are opened under the dead weight of the stacked plastic cups, and the group of plastic cups falls out in the gap between the two arc-shaped flip doors 433.

[0043] When the unloading half-circle cylinder 43 turns downward to unload the group of plastic cups, the cylinder reset member 45 can be in a depressurized state, that is, it naturally turns downward with the gravity of the unloading half-circle cylinder 43, until the two arc-shaped turning doors 433 are opened to unload the group of plastic cups. The cylinder reset member 45 can also be in an actuated state, that is, the speed of the unloading half-circle cylinder 43 turning downward is controlled by controlling the moving speed of its two racks 451;

[0044] After the unloading half-circle cylinder 43 has completed unloading the group of plastic cups, it is necessary to close the two arc-shaped flip doors 433 and then return the unloading half-circle cylinder 43 to its original position by moving the rack 451 and the triangular lifting plate 452. For this purpose, refer to Figure 8-9 A rotation reset member 005 is respectively arranged at the end adjacent to the two arc-shaped grooves 004. The power source of the rotation reset member 005 can be a motor or a cylinder. The rotation reset member 005 pushes the opening and closing trigger shaft 05 to reset the two arc-shaped flip doors 433.

[0045] In order to prevent the upper assembly line from stagnating when unloading the half-circle tube 43, a cylinder stopper 70 is fixedly provided on the cup stacking tube 41 between the inwardly split section 411 and the outwardly split section 412 and toward the side of the transfer workbench 20. The telescopic end of the cylinder stopper 70 can enter the interior of the cup stacking tube 41 to block the falling plastic cups.

[0046] Reference Figure 10-12The inkjet coding assembly 50 includes an inkjet terminal 51 that can be translated into the inwardly cut section 411, a cam blocking member 52 arranged upward from the inwardly cut section 411, and a reduction transmission member 53 that applies power to the cam blocking member 52; the reduction transmission member 53 includes a small pulley 531 coaxially fixedly connected to the distal transmission shaft of the transmission belt 37, and a large pulley 532 connected by a belt drive; the large pulley 532 is fixedly connected to the bottom surface of the mounting seat 35 through two supports; the cam blocking member 52 includes a cam 521 sleeved on the central axis of the large pulley 532, a compression spring 522 sleeved on the central axis of the large pulley 532 on the side away from the large pulley 532, and a contact head 523 fixed on the surface of the central axis of the large pulley 532 on the side close to the large pulley 532; the cam 521 refers to Fig.11 , with a raised guide portion 52a upward, a guide seat 52b matched with the guide portion is fixedly provided on the bottom surface of the mounting seat 35, one end of the cam 521 axial direction is a straight end, and the other end is a cam end, the circumferential surfaces of the straight end and the cam end have a certain interval, and the axial direction is respectively extended from the center to the outside from small to large conical surfaces, the two conical surfaces can respectively block the entering plastic cup when the cam 521 moves back and forth laterally, that is, when the cam 521 continuously moves back and forth laterally, the plastic cup falls for a pause here, and during the short pause, the spray terminal 51 just enters to spray the mark on the plastic cup, the continuous lateral reciprocating movement of the cam 521 is obtained by the rotation of the large pulley 532, specifically, when the large pulley 532 rotates, the contact head 523 rotates accordingly and presses the cam end of the cam 521, and after the cam 521 moves, its straight end squeezes the compression spring 522, thereby obtaining continuous reciprocating movement.

[0047] In order to facilitate receiving the plastic cups in groups, a device that can be translated is set directly below the unloading half-circle cylinder 43 when it is horizontal, referring to Figure 6 , place the packaging box on the device and fill the packaging box by timely translation.

[0048] The overall working steps of the assembly line (refer to all attached pictures):

[0049] 1. According to Figure 4 As shown, the material taking robot 10 takes the formed plastic cup out of the injection molding machine and puts it into the transfer workbench 20;

[0050] 2. After visual inspection, the plastic cups enter the orientation guide assembly 30 and enter the stacking cup unloading assembly 40 after orientation adjustment;

[0051] 3. In the stacked cup unloading assembly 40, the coding assembly 50 completes coding and marking on each plastic cup;

[0052] 4. According to Figure 6As shown, the unloading half-circle cylinder 43 unloads the group of plastic cups into the packaging box, and at this time, the cylinder blocking member 70 extends to block the falling plastic cups;

[0053] 5. Under the action of the starting cylinder reset member 45 and the elastic band retractable roll 09, the unloading half-circle cylinder 43 is reset to return to the initial pick-up position, the cylinder blocking member 70 retracts, and the plastic cup continues to fall into the unloading half-circle cylinder 43; and the process is repeated in sequence.

[0054] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A wide-mouth plastic cup production line, which is directly arranged on the front side of the injection-blowing machine with a compact structure, characterized in that: include: A material taking robot (10) in front of the injection molding machine is placed on the ground and the robot can reach a flow table (20) at one end thereof, a directional guide assembly (30) fixedly arranged at the other end of the flow table (20), a stacked cup unloading assembly (40) fixedly arranged below the output end of the directional guide assembly (30), a coding assembly (50) arranged in the middle of the stacked cup unloading assembly (40), and a box receiving assembly (60) arranged below the stacked cup unloading assembly (40); after the plastic cups are formed, the material taking robot (10) The plastic cups are placed on the transfer workbench (20). The conveyor belt of the transfer workbench (20) transfers the plastic cups to the directional guide assembly (30). The directional guide assembly (30) ensures that the plastic cups enter the stacking cup unloading assembly (40) in the same direction. During the falling process of the plastic cups, they are blocked by the coding assembly (50) and then the bottom of each plastic cup is sprayed with a marking. The sprayed plastic cups continue to fall. When a set number of plastic cups is reached, the stacking cup unloading assembly (40) starts unloading and the corresponding box receiving assembly (60) receives them. The cup stacking unloading assembly (40) comprises a cup stacking tube (41) which is sleeved and fixed on a fixed mounting seat (35) below the material dropping area (341), and a connecting seat (44) fixed at the foot of the circulating workbench (20) for fixing the cup stacking tube (41); the length of the cup stacking tube (41) is close to the foot of the circulating workbench (20) and the lower end is offset towards one end of the foot of the workbench; the upper part of the cup stacking tube (41) is in an outwardly tilted shape; the upper end entrance of the cup stacking tube (41) is in an outwardly expanded open shape; the lower end of the cup stacking tube (41) is provided with an inwardly split section (411) on the side facing the circulating workbench (20); the inwardly split section (411) is further downward until the lowest end is an outwardly split section (412) facing away from the circulating workbench (20); The stacked cup unloading assembly (40) further comprises two guide rails (42) fixedly arranged on two split edges of the outward split section (412) and extending upward, and a unloading half-circle cylinder (43) which is slidably matched with the guide rails (42) by respectively fixing guide pins (01) at the upper and lower ends; the unloading half-circle cylinder (43) has an overall semicircular cross-section, and two long straight sides have limit stop bars (431) matching the guide rails (42), and the guide pins (01) are respectively fixedly installed at the upper and lower ends. At the upper and lower ends of the limit stop bar (431), after the unloading half-circle cylinder (43) cooperates with the guide rail (42), the two sides of the upward end are respectively rotatably fixed with elastic belt mounting buckles (02), and the two sides of the downward end are respectively rotatably fixed with unloading flip gears (03), a hinge shaft (04) is coaxially fixedly connected between the two unloading flip gears (03), and a support plate (07) is fixedly arranged on the inner wall of the unloading half-circle cylinder (43) located on one side of the unloading flip gear (03); the unloading half-circle cylinder (43) also includes a cylinder reset member (45) fixedly arranged on the connecting seat (44);The cylinder reset member (45) comprises two racks (451) arranged at positions corresponding to the positions for unloading the flip gear (03), and an upwardly protruding triangular lifting plate (452) is respectively provided on the inner sides of the two racks (451), a reset cylinder (453) is fixedly provided on the side of the two racks (451) facing the flow worktable (20), and a receiving seat (454) is fixed on the connecting seat (44) between the two racks (451); the receiving seat (454) has a groove (08) matching the hinge shaft (04), and the receiving seat (454) is made of an elastic plastic material. When the hinge shaft (04) falls with gravity, the position corresponds to the groove of the receiving seat (454), and can be squeezed into the groove (08) under the action of gravity. When the hinge shaft (04) falls into the groove (08), the outer hypotenuse of the two triangular lifting plates (452) just contacts the hinge shaft (04); An elastic band retractable roll (09) is fixedly provided at the highest position of the cup stacking tube (41) near the guide rail (42) and is rotated at a certain angle. The elastic band retractable roll (09) has a coil spring inside, and the elastic band is retracted by the coil spring. The elastic band itself is also elastic, and the exposed end of the elastic band is fixedly connected to the elastic band mounting buckle (02).

2. The wide-mouth plastic cup production line according to claim 1, characterized in that: The directional guide assembly (30) comprises a mounting plate (31) fixed to the end of the flow worktable (20), two guardrails (32) with one end fixed to the mounting plate (31) and the other end fixed to the flow worktable (20), a guard member (33) provided on one side of the guardrail (32) fixed to the mounting plate (31) and fixed to the mounting plate (31), two directional guide rods (34) parallel to each other and spaced apart by a distance less than the maximum diameter of a plastic cup, located below the guard member (33), one end of which is rotatably fixed to the mounting plate (31) and the other end of which is tilted downward at a certain angle, a fixed mounting seat (35) for rotatably mounting the directional guide rod (34), and a fixed mounting seat (35) for rotatably mounting the directional guide rod (34). Two transmission gears (351) are coaxially fixedly connected to the two directional guide rods (34) and meshed with each other on the inner side of the seat (35); a driving motor (352) is transmission-connected to one of the directional guide rods (34) on the outer side of the fixed mounting seat (35); an angle frame (36) is fixed at one end to the flow-through worktable (20) and the other end is used to connect and support the fixed mounting seat (35); a transmission belt (37) is located below the directional guide rod (34), one end of which is rotatably fixed to the flow-through worktable (20) through a support and the other end of which is fixed to the angle frame (36); and a transmission member (38) is led out from one of the directional guide rods (34) through a pulley drive, then converted to a bevel gear and then converted to the transmission belt (37).

3. The wide-mouth plastic cup production line according to claim 2, characterized in that: The two directional guide rods (34) have a section at one end close to the transmission gear (351) whose diameter is reduced to a size smaller than the maximum diameter of the plastic cup, thereby forming a material drop zone (341).

4. The wide-mouth plastic cup production line according to claim 1, characterized in that: The middle part of the unloading half-circle cylinder (43) is composed of two arc-shaped flip doors (433) that flip to the two sides respectively. A magnetic attraction strip (434) is fixedly provided on one side where the two arc-shaped flip doors (433) intersect. An opening and closing trigger shaft (05) is fixedly provided on one side where the unloading flip gear (03) is installed on the two arc-shaped flip doors (433). A avoidance hole (06) is provided at the position of the unloading half-circle cylinder (43) corresponding to the opening and closing trigger shaft (05).

5. The wide-mouth plastic cup production line according to claim 4, characterized in that: The connecting seat (44) is provided with a recessed avoidance notch (002) for the unloading half-circle cylinder (43) to be turned downward. The connecting seat (44) is provided with two arc-shaped grooves (004) at the lower end surface of the avoidance notch (002) for the opening and closing trigger shafts (05) of the two arc-shaped flip doors (433) to move correspondingly when they are opened. An upwardly protruding trigger pin (003) is fixedly arranged in the avoidance notch (002). The diameter of the upper end of the trigger pin (003) is the smallest and gradually increases downward to form a cone shape as a whole. The position of the trigger pin (003) corresponds to the center of the two opening and closing trigger shafts (05). When the unloading half-circle cylinder (43) is turned downward to the far end below the horizontal position, the trigger pin (003) enters between the two opening and closing trigger shafts (05).

6. The wide-mouth plastic cup production line according to claim 5, characterized in that: A rotational reset member (005) is respectively provided at the end adjacent to the two arc-shaped grooves (004); and a cylinder stopper (70) is fixedly provided on the cup stacking tube (41) between the inwardly split section (411) and the outwardly split section (412) and toward the side of the transfer workbench (20).

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