Production line of clay filled ball for injection molding of hollow ornament ball

Abstract

The utility model discloses a production line of a clay filled ball for injection molding of a hollow ornament ball. The production line comprises an extruder, a film laminating machine, a transfer manipulator and a molding press, the extruder comprises an extrusion charging barrel, an extrusion hopper, an extrusion motor and an extrusion die head; the film laminating machine comprises a conveying belt, a film laminating roller, an upper film unwinding roller, a lower film unwinding roller and a section cutting mechanism; the molding press comprises a mounting platform, a lower pressing die, an upper pressing die and an extrusion mechanism, the extrusion die head is arranged above the starting end of the advancing direction of the conveying belt, and the transfer manipulator is arranged between the film laminating machine and the molding press. The utility model aims to provide the production line of the clay filled ball for injection molding of the hollow ornament ball, which is high in automation degree and production efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of ornament processing, and more specifically to a production line for hollow ornament balls filled with clay for injection molding. Background Art

[0002] Hollow spheres are widely used in jewelry, such as pendants and hangings. However, producing a single, integrated sphere is complex and can present challenges with demolding. Currently, most hollow spheres on the market are manufactured by ultrasonically welding the halves together. With superior craftsmanship, these welds are virtually invisible. However, this additional process can lead to significant issues with both efficiency and yield.

[0003] The applicant has come up with an ingenious method for integrally processing a hollow decorative ball. This involves filling the inside of the mold with a filler, and then using a water-washable material such as clay as the filler. After the injection molding is completed, the filler is washed away by water, and a complete, integral hollow decorative ball is obtained.

[0004] However, this type of clay-filled ball is disposable. In order to match the efficient injection molding efficiency of the hollow decorative balls, it is necessary to produce this type of clay-filled ball in batches and quickly. Therefore, mass production of this type of spherical clay-filled ball brings huge challenges. Utility Model Content

[0005] The purpose of the utility model is to overcome the above defects of the prior art and provide a production line for hollow decorative balls with high automation and production efficiency and for injection molding clay-filled balls.

[0006] In order to achieve the above purpose, the utility model is realized through the following technical solutions: a production line for hollow decorative balls injection molding and clay-filled balls, characterized in that it includes an extruder, a laminating machine, a transfer robot and a molding machine; the extruder includes an extrusion barrel with a built-in auger, an extrusion hopper is provided on the upper side wall of the extrusion barrel, an extrusion motor is provided at one end of the extrusion barrel, the motor shaft of the extrusion motor is connected to the auger in the extrusion barrel, and an extrusion die head is provided at the other end of the extrusion barrel; the laminating machine includes a conveyor belt, a laminating roller is provided above the middle of the conveyor belt, an upper film unwinding roller is provided obliquely above the laminating roller, and a lower film unwinding roller is provided below the conveyor belt; the extrusion die head is placed in front of the conveyor belt A segmentation mechanism is provided above the starting end of the forward direction and above the terminal end of the forward direction of the conveyor belt, and the transfer robot is arranged between the laminating machine and the molding machine; the molding machine includes a mounting platform, a lower molding machine is provided on the mounting platform, an upper molding machine is provided directly above the lower molding machine, and a plurality of semicircular mold cavities arranged in a matrix are provided on the end faces of the upper molding machine and the lower molding machine; the upper molding machine is placed on an extrusion mechanism, and the extrusion mechanism includes a fixed table plate lifted by a plurality of supporting slides, which are installed on the mounting platform, and an extrusion cylinder is provided on the fixed table plate, and a movable table plate is connected to the cylinder shaft of the extrusion cylinder, and the movable table plate is also placed on the supporting slides, and the upper molding machine is placed on the lower end face of the movable table plate.

[0007] Preferably, the transfer robot includes a first transfer robot and a second transfer robot, the first transfer robot includes a servo motor, a vertically arranged turntable is provided on the motor shaft of the servo motor, a plurality of material support boxes arranged at equal arc length intervals are provided on the circumferential edge of the turntable, the side of the material support box is hinged to the turntable through a swing arm, the material support box is provided with a side opening and a dematerializing trough passing through the upper and lower parts, the material support box at the edge of the dematerializing trough is provided with three-sided limiting ribs, the size of the dematerializing trough is adapted to the size of the lower die; the second transfer robot includes a rodless cylinder, a reciprocating slide is provided on the piston of the rodless cylinder, a first rotary cylinder with horizontal rotation movement is provided on the reciprocating slide, a rotating pendulum seat is provided on the first rotary cylinder, a second rotary cylinder with vertical rotation movement is provided on the rotating pendulum seat, a reciprocating arm rod extending horizontally outward is provided on the second rotary cylinder, and the lower die is provided on the free end of the reciprocating arm rod.

[0008] Preferably, a three-sided limit frame is provided on the mounting platform, and a pair of guide strips opened outward into a trumpet shape are provided at the only one side outlet of the limit frame. The inner cavity size of the limit frame is adapted to the size of the lower die.

[0009] Preferably, a material collection frame is provided between the second transfer robot and the molding machine.

[0010] Preferably, a die groove with a straight opening is provided on the end face of the extrusion die head.

[0011] Preferably, the segment cutting mechanism includes a segment cutting knife, which is placed on a track slide that supports it to slide stably up and down, and a knife cylinder that provides power for the segment cutting knife to move up and down is provided on the track slide.

[0012] Beneficial effects: The utility model can integrate multiple devices and tools to complete multiple processes or production tasks, improve production efficiency and reduce costs, and is suitable for batch production. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural diagram of the utility model;

[0014] Figure 2 This is a schematic structural diagram of the extruder of the utility model;

[0015] Figure 3 This is a schematic structural diagram of the extrusion die head of the utility model;

[0016] Figure 4 This is a schematic structural diagram of the utility model laminating machine;

[0017] Figure 5 This is a structural diagram of the first transfer manipulator of the present utility model;

[0018] Figure 6 This is a structural diagram of the second transfer manipulator of the present utility model;

[0019] Figure 7 This is a schematic structural diagram of the molding machine of the present utility model;

[0020] Figure 8 It is a structural schematic diagram of the lower pressing die of the utility model.

[0021] In the figure: 1-extruder, 2-laminating machine, 3-first transfer robot, 4-second transfer robot, 5-pressing machine, 6-collection frame, 7-semicircular mold cavity, 11-extrusion barrel, 12-extrusion motor, 13-extrusion die head, 14-extrusion hopper, 15-die groove, 21-conveyor belt, 22-laminating roller, 23-upper film unwinding roller, 24-lower film unwinding roller, 25-segmenting knife, 26-track slide, 27-knife cylinder, 31-servo motor Machine, 32-turntable, 33-support box, 34-rotating swing arm, 35-stripping chute, 36-limiting rib, 41-rodless cylinder, 42-reciprocating slide, 43-first rotary cylinder, 44-rotating swing seat, 45-second rotary cylinder, 46-reciprocating arm, 51-mounting platform, 52-lower die, 53-upper die, 54-support slide, 55-fixed table, 56-extrusion cylinder, 57-movable table, 58-limiting frame, 59-guide strip. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features and objectives of the present invention easier to understand, the present invention is further described below in conjunction with specific embodiments.

[0023] Example: Figure 1 As shown, a production line for hollow decorative balls injection-molded with clay-filled balls includes an extruder 1, a laminating machine 2, a first transfer robot 3, a second transfer robot 4 and a molding machine 5; a collection frame 6 is provided between the second transfer robot 4 and the molding machine 5.

[0024] like Figure 2 and Figure 3 As shown, the extruder 1 includes an extrusion barrel 11 with a built-in auger, an extrusion hopper 14 is provided on the upper side wall of the extrusion barrel 11, an extrusion motor 12 is provided at one end of the extrusion barrel 11, the motor shaft of the extrusion motor 12 is connected to the auger in the extrusion barrel 11, and an extrusion die head 13 is provided at the other end of the extrusion barrel 11; a die groove 15 with a straight opening is provided on the end face of the extrusion die head 13.

[0025] like Figure 4 As shown, the laminating machine 2 includes a conveyor belt 21, a laminating roller 22 is provided above the middle of the conveyor belt 21, an upper film unwinding roller 23 is provided obliquely above the laminating roller 22, and a lower film unwinding roller 24 is provided below the conveyor belt 21; the extrusion die head 13 is arranged above the starting end of the conveyor belt 21 in the forward direction, and a segmenting mechanism is provided above the terminal end of the conveyor belt 21 in the forward direction. The segmenting mechanism includes a segmenting knife 25, and the segmenting knife 25 is placed on a track slide 26 that supports it to slide stably up and down, and the track slide 26 is provided with a knife cylinder 27 that provides power for the segmenting knife 25 to move up and down.

[0026] like Figure 5 As shown, the first transfer robot 3 includes a servo motor 31, and a vertically arranged turntable 32 is provided on the motor shaft of the servo motor 31. Four material supporting boxes 33 arranged at equal arc length intervals are provided on the circumferential edge of the turntable 32. The side of the material supporting box 33 is hinged to the turntable 32 through a swing arm 34. The material supporting box 32 is provided with a stripping trough 35 with a side opening and passing through the upper and lower parts. The material supporting box 33 at the edge of the stripping trough 35 is provided with a limiting rib 36 surrounded by three sides. The size of the stripping trough 35 is adapted to the size of the lower die 52.

[0027] like Figure 6 As shown, the second transfer robot 4 includes a rodless cylinder 41, a reciprocating slide 42 is provided on the piston of the rodless cylinder 41, a first rotary cylinder 43 with horizontal rotation movement is provided on the reciprocating slide 42, a rotating pendulum seat 44 is provided on the first rotary cylinder 43, a second rotary cylinder 45 with vertical rotation movement is provided on the rotating pendulum seat 44, and a horizontally outward-extending reciprocating arm 56 is provided on the second rotary cylinder 45, and the lower pressing die 52 is provided on the free end of the reciprocating arm 46.

[0028] like Figure 7 and Figure 8 As shown, the molding machine 5 includes a mounting platform 51, on which a lower mold 52 is disposed. An upper mold 53 is disposed directly above the lower mold 52. The end surfaces of the upper mold 53 and the lower mold 52 are each provided with a plurality of semicircular mold cavities 7 arranged in a matrix. The semicircular mold cavities 7 in the upper and lower molds are assembled to form a complete clay-filled ball molding cavity.

[0029] The upper die 53 is placed on an extrusion mechanism, which includes a fixed table 55 supported by four supporting slides 54. These supporting slides 54 are installed on the mounting platform 51. An extrusion cylinder 56 is provided on the fixed table 55. A movable table 57 is connected to the cylinder shaft of the extrusion cylinder 56. The movable table 57 is also placed on the supporting slides 54. The upper die 53 is placed on the lower end surface of the movable table 57.

[0030] A three-sided limit frame 58 is provided on the mounting platform 51 . A pair of guide strips 59 opening outwards into a trumpet shape are provided at the only outlet of the limit frame 58 . The inner cavity size of the limit frame 58 is adapted to the size of the lower die 52 .

[0031] Usage: The utility model has high automation and production efficiency. The clay raw materials are poured into the extrusion barrel, stirred and squeezed by the auger in the extrusion barrel, and extruded from the extrusion die head. The straight die groove shapes it into a clay plate with a plate structure.

[0032] The clay board falls from the starting end of the conveying direction of the conveyor belt. As the conveyor belt moves forward, the upper film is wrapped around from under the laminating roller and laminated on the upper side of the clay board by the latter. The lower film is wrapped around from above the conveyor belt and laminated on the lower side of the clay board from the moment the clay board falls into the conveyor belt. At this point, the upper and lower sides of the clay board are all covered with film. The benefit of lamination is that it effectively protects the clay filling balls during the molding process and later transportation.

[0033] The coated clay slab is transported to the end of the conveying direction of the conveyor belt, cut into sections of clay cubes by the cutting knife, and continued to be transported by the conveyor belt. Then it falls into the material box of the first transfer robot. The weight of the material box and the clay cubes plus the swing arm with a certain damping and rotating around the hinge point ensure that the material box and the clay cubes remain stable and horizontal during the rotation of the turntable. The clay cubes move around half a circle as the turntable first rises and then falls.

[0034] The first rotary cylinder turns the reciprocating arm toward the turntable. At this time, the lower die is located exactly in the rotating track of the material support box (it should be explained here that the upper and lower dies for pressing clay-filled balls are both made of plastic and are not as heavy as conventional metal molds). When the material support box slowly drops the clay cubes, the material support box passes through the lower die in the rotating track due to the obstruction of the lower die, and the clay cubes are smoothly transferred to the lower die. Then the first rotary cylinder resets to point the reciprocating arm toward the molding machine.

[0035] The rodless cylinder pushes the reciprocating arm to send the lower die to the die pressing machine. The lower die slides in with the square clay block against the mounting platform, and with the guidance of the guide bar, it smoothly reaches the designated position, that is, directly below the upper die, that is, within the limit frame. The upper die is slowly pressed down under the action of the extrusion cylinder, and the semicircular mold cavities corresponding to the upper and lower dies are pieced together to form a complete clay-filled ball forming cavity, so that clay-filled balls are pressed out of the square clay block. The rodless cylinder pulls back the reciprocating arm to pull the lower die out of the die pressing machine, and then the second rotary cylinder rotates to make the lower die face up and face down, and the clay-filled balls and excess clay material fall off naturally and fall into the aggregate port. The excess clay can be put into the extruder after the film is removed without waste. Finally, the second rotary cylinder resets the lower die face down and faces up, entering the next repeated production link.

Claims

1. A production line for hollow decorative balls injection molding clay filling balls, characterized in that: It includes an extruder, a laminating machine, a transfer robot and a molding machine; The extruder includes an extrusion barrel with a built-in auger, an extrusion hopper is provided on the upper side wall of the extrusion barrel, an extrusion motor is provided at one end of the extrusion barrel, and an extrusion die head is provided at the other end of the extrusion barrel; The laminating machine includes a conveyor belt, a laminating roller is provided above the middle of the conveyor belt, an upper film unwinding roller is provided obliquely above the laminating roller, and a lower film unwinding roller is provided below the conveyor belt; The extrusion die head is placed above the starting end of the conveyor belt in the forward direction, a segmentation mechanism is provided above the terminal end of the conveyor belt in the forward direction, and the transfer robot is placed between the laminating machine and the die pressing machine; The die pressing machine includes a mounting platform, a lower die is provided on the mounting platform, an upper die is provided just above the lower die, and a plurality of semicircular die cavities arranged in a matrix are provided on the end surfaces of the upper die and the lower die; The upper die is placed on an extrusion mechanism, which includes a fixed table supported by a number of supporting slides. An extrusion cylinder is provided on the fixed table. A movable table is connected to the cylinder shaft of the extrusion cylinder. The movable table is also placed on the supporting slides. The upper die is placed on the lower end surface of the movable table.

2. The production line for hollow decorative balls injection molding clay-filled balls according to claim 1 is characterized in that: The transfer robot includes a first transfer robot and a second transfer robot, the first transfer robot includes a servo motor, a vertically arranged turntable is provided on the motor shaft of the servo motor, a plurality of material supporting boxes arranged at equal arc length intervals are provided on the circumferential edge of the turntable, the side of the material supporting box is hinged to the turntable through a swing arm, the material supporting box is provided with a stripping trough with one side opening and passing through the upper and lower parts, and the material supporting box at the edge of the stripping trough is provided with limiting ribs surrounded by three sides, and the size of the stripping trough is adapted to the size of the lower die; The second transfer robot includes a rodless cylinder, a reciprocating slide is provided on the piston of the rodless cylinder, a first rotary cylinder with horizontal rotational movement is provided on the reciprocating slide, a rotating pendulum seat is provided on the first rotary cylinder, a second rotary cylinder with vertical rotational movement is provided on the rotating pendulum seat, and a reciprocating arm rod extending horizontally outward is provided on the second rotary cylinder, and the lower pressing die is provided on the free end of the reciprocating arm rod.

3. The production line for hollow decorative balls injection molding clay-filled balls according to claim 2 is characterized in that: A three-sided limit frame is provided on the installation platform. A pair of guide strips opened outwards into a trumpet shape are provided at the only one side outlet of the limit frame. The inner cavity size of the limit frame is adapted to the size of the lower pressing die.

4. The production line for hollow decorative balls injection-molded with clay-filled balls according to claim 2 or 3, characterized in that: A material collection frame is provided between the second transfer robot and the molding machine.

5. The production line for hollow decorative balls injection molding clay-filled balls according to claim 1 is characterized in that: A die groove with a straight opening is provided on the end surface of the extrusion die head.

6. The production line for hollow decorative balls injection molding clay-filled balls according to claim 1 is characterized in that: The segment cutting mechanism comprises a segment cutting knife, which is placed on a track slide supporting the segment cutting knife to slide stably up and down. The track slide is provided with a knife cylinder providing power for the segment cutting knife to move up and down.

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