CN113103611B - Multi-shaft rotating and extrusion molding three-dimensional net-shaped structure product and molding method and equipment - Google Patents

Abstract

The invention belongs to the field of plastic cushions and forming devices, and relates to a multi-axis rotating and extrusion forming three-dimensional net-shaped structure product, a forming method and equipment. Including the forming system of preparation three-dimensional network structure goods, the unordered adhesion of current plastics cushion has been overcome to former equipment among the forming system and the multiaxis rotation technology that former equipment adopted, causes the not enough of product comfort level decline for a long time, accomplishes orderly adhesion through multiaxis rotation and in-mould forming technology, has better whole elasticity, intensity and resistance to deformation ability.

Description

Multi-axis rotation, extrusion molding three-dimensional network structure product and molding method and equipment

technical field

The invention belongs to the field of plastic cushions and forming devices, and in particular relates to a multi-axis rotating, extrusion-molded three-dimensional network structure product and a molding method and equipment.

Background technique

Traditional plastic soft pads mostly use fixed porous spinnerets to extrude materials downward to form a disordered adhesion-like messy silk pad, and then go through the processes of setting, cooling, drying and other processes to make products. Due to its technological characteristics, the disordered filaments are excessively overlapped when they are adhered, and the chaotic filaments in the middle position are not firm. Long-term use will cause the cluttered filaments to separate, collapse, and not rebound, resulting in a decrease in product comfort and excessive overlap. Failure to make full use of space results in heavier unit volume and mass, and not particularly good elasticity.

The 201110128151.1 patent discloses a cushion in which the pipe network coexists with random wires, the size of the holes in the same row is the same, the size of the different rows is inconsistent, the middle is large, the two sides are small, and there are only three rows of holes, such a product will cause the degree of pressure Non-uniformity, resulting in different product comfort.

SUMMARY OF THE INVENTION

In order to overcome the shortcomings of the existing plastic soft pads sticking randomly and disorderly and causing the product comfort to decrease for a long time, the present invention provides a multi-axis rotation, extrusion molding three-dimensional network structure product and a molding method and equipment.

The above object of the present invention is achieved by the following technical solutions: multi-axis rotation, extrusion molding of three-dimensional network structure products, products using multi-axis rotation technology to mutually orderly bond and shape in the mold. Among them, the multi-axis rotation technology is that the multi-axis rotate with each other, and the joints of adjacent discharge ports are bonded to each other to form nodes, and a three-dimensional network structure is formed under the action of rotation force, gravity and traction force.

Further, the material of the three-dimensional network structure product is polyethylene, polypropylene, and polyolefin elastomer.

The structure of the molding system for making three-dimensional net-like structure products includes sequentially connected extruders, screen changers, metering pumps, molding equipment, molding machines, tractors, cutting machines, conveyors, and blanking platforms.

The structure of the molding equipment in the molding system for making the three-dimensional mesh structure product includes: gear motor, crank eccentric shaft, rotating body drive plate, cross transition device, slider, slide rail, upper rotating body, lower rotating body, mold body, discharge mouth.

The connection method of the forming equipment is as follows: the gear motor is connected to the crank eccentric shaft, the crank eccentric shaft and the rotating body drive plate are connected by a flat key, and the rotating body drive plate is connected to the pin shaft on the cross transition device through the transverse opening grooves on both sides of the rotating body drive plate. A longitudinal slider and a slide rail device are installed under the transition device. The slider is connected to the lower surface of the cross transition device. The slide rail is embedded in the upper part of the mold body. The upper rotating body is composed of an upper rotating body and a lower rotating body. The upper rotating body is a crankshaft. The upper part of the crankshaft is connected with the rotating body transmission plate, and the lower part is connected with the lower rotating body. The lower part of the transmission plate is embedded in the center of the cross transition device, the upper rotating body and the lower rotating body are connected by bolts, and the bottom of the lower rotating body is provided with a discharge port.

When the molding equipment is in operation, the rotating body drive plate and the cross transition device move laterally relative to each other, and the cross transition device moves relatively longitudinally with the mold body through the slider and the slide rail device, thereby driving the upper part of the rotating body on the crankshaft on the rotating body drive plate to move in the opposite direction. Regular circular motion, the lower part of the upper rotating body of the crankshaft drives the lower rotating body to rotate along the shaft self-transmission, the discharge port located on the side of the lower rotating body evenly discharges the material, and the two adjacent discharge ports meet each other, forming a network through rotation. Finally, a three-dimensional network structure product is produced.

Further, the rotating body transmission plate is different from the conventional transmission plate in that the conventional transmission plate only completes the rotation of one rotating body, and the rotating body transmission plate completes the simultaneous rotation of all the rotating bodies.

Further, the discharge port is a multi-axis discharge port and the cross-sectional arrangement is a regular polygon.

Further, the three-dimensional network structure product is applied to the household industry or to replace the buffer material.

Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The orderly arranged plastic filaments form a multi-layer network structure, so that the plastic cushion of the present invention has better overall elasticity, strength, resistance to The ability to deform and repeatedly deform, and the bonding is completed in the mold body, which greatly improves the bonding force; 2. Since the plastic filaments of the present invention are arranged in an orderly manner and integrated into a system, the adhesion and disorder caused by the long-term use of traditional plastic cushions are avoided. The wire is separated, collapsed, and does not rebound; 3. Plastic is used as the raw material, and there are many hollow parts of the cushion, so the unit mass is lighter under the condition of ensuring good elasticity, and it is comfortable and easy to store and move; 4. The drive device includes a crank eccentric shaft, which is driven by a reduction motor to drive the rotating body transmission plate, and the transmission accuracy is reliable and stable through the cross transition device; The running track of the device is circular, so that the product is a rotating body, which greatly strengthens the firmness.

Description of drawings

Fig. 1 is the three-dimensional network structure product forming equipment of the present invention.

Fig. 2 is a bottom detail view of the three-dimensional network structure product forming apparatus of the present invention.

FIG. 3 is a structural diagram of the three-dimensional network structure product forming system of the present invention.

Figure 4 is a detailed view A of the lower rotating body and the discharge port of the present invention.

Fig. 5 is a detailed view B of the lower rotating body and the discharge port of the present invention.

In the figure, 1. Geared motor; 2. Crank eccentric shaft; 3. Rotating body drive plate; 4. Cross transition device; 5. Slider; 6. Slide rail; 7. Upper rotating body; 8. Lower rotating body; 9. Mould body; 10. Outlet; 101. Outlet a; 102. Outlet b; 103. Outlet c; 104. Outlet d; 105. Outlet e; 106. Outlet f ; 107. Outlet g; 108. Outlet h; 109. Outlet i; 110. Outlet j; 11. Extruder; 12. Screen changer; 13. Metering pump; 14. Forming equipment ; 15. Forming machine; 16. Tractor; 17. Cutting machine; 18. Conveyor; 19. Blanking platform.

Detailed ways

The present invention is described in detail below through specific embodiments, but the protection scope of the present invention is not limited. Unless otherwise specified, the experimental methods used in the present invention are all conventional methods, and the experimental equipment, materials, reagents, etc. used can be obtained from commercial sources.

Example 1

FIG. 1 is a three-dimensional network structure product forming equipment 14

Including: reduction motor 1, crank eccentric shaft 2, rotating body drive plate 3, cross transition device 4, slider 5, slide rail 6, upper rotating body 7, lower rotating body 8, mold body 9, discharge port 10.

The connection method of the three-dimensional mesh structure product forming equipment is: the gear motor 1 is linked to the crank eccentric shaft 2, the crank eccentric shaft 2 and the rotating body transmission plate 3 are connected by a flat key, and the rotating body transmission plate 3 is connected through the horizontal opening on both sides of the rotating body transmission plate 3. The groove is connected with the pin shaft of the cross transition device 4. Below the cross transition device 4, a longitudinal slider 5 and a slide rail 6 are installed. The slider 5 is connected to the lower surface of the cross transition device 4. The direction of the rail 6 and the direction of the opening slot on the rotating body transmission plate 3 are crossed. The multi-axis is mainly composed of an upper rotating body 7 and a lower rotating body 8. The upper rotating body 7 is a crankshaft, and the upper part of the crankshaft is connected with the rotating body transmission plate 3. The body transmission plate 3 is sleeved into the upper rotating body 7 arranged in an orderly manner. The upper rotating body 7 is located at the lower part of the rotating body transmission plate 3 and is embedded in the center of the cross transition device 4. The upper rotating body 7 and the lower rotating body 8 are connected by bolts. 8 There is a discharge port 10 at the bottom.

The power source of the molding equipment is the geared motor 1. The geared motor 1 links the crank eccentric shaft 2 to drive the crank eccentric shaft 2 to rotate along the center of the main shaft. The crank eccentric shaft 2 and the rotating body transmission plate 3 are linked by a flat key. The rotating body drive plate 3 rotates along the center of the main shaft, so that a single rotating body can move along the required trajectory at the center point of the main shaft. Driven by the crank eccentric shaft 2, the rotating body transmission plate 3 is driven to move linearly in the direction of the opening slot, and a slider 5 slide rail 6 device is installed under the cross transition device 4, and the direction of the slide rail 6 is a cross with the direction of the opening slot. Cross, the cross transition device 4 makes a cross linear motion along the cross direction, and the rotating body drive plate 3 and the cross transition device 4 move in a relative straight line through the reciprocating cooperation of the gears to realize the rotational motion of each lower rotating body 8 according to its respective center point, all the lower rotating bodies 8. The rotating body 8 rotates in the same direction. When two adjacent discharge ports 10 meet, the two wires meet to form an overlap point. After shaping, cooling and other processes, the final product is formed.

Example 2

Multi-axis rotation technology

The upper discharge openings 10 of the lower rotating body 9 are evenly distributed on the side of the lower rotating body 9. Each rotating body is connected through the discharge opening 10 to form a node. Through the action of gravity and downward traction, it rotates continuously and crosses to form a three-dimensional network. The structure is a regular polygon in cross section.

There are 6 discharge ports for the lower rotating body (Figure 4):

There are 6 discharge ports evenly distributed on the side of each lower rotating body, namely discharge port a101, discharge port b102, discharge port c103, discharge port d104, discharge port e105, discharge port f106, two adjacent ones. The discharge ports of the rotating body meet at the tangent point to form a connection node. As shown in Figure 4, the discharge port a101 is connected to the discharge port d104, the discharge port b102 is connected to the discharge port e105, and the discharge port c103 is connected to the discharge port f106. , the discharge ports 10 meet to form a node, each rotating body rotates in a counterclockwise direction, and the discharge port 10 rejoins once every 60° rotation, each point rotates around the center of the respective rotating body, and is affected by gravity and traction to form a rotating three-dimensional Spatial network structure.

The cross-section of the product output from the discharge port 10 of the lower rotating body 9 is approximately regular hexagon, and the product is a three-dimensional network structure.

Example 3

Multi-axis rotation technology

The upper discharge openings 10 of the lower rotating body 9 are evenly distributed on the side of the lower rotating body 9. Each rotating body is connected through the discharge opening 10 to form a node. Through the action of gravity and downward traction, it rotates continuously and crosses to form a three-dimensional network. The structure is a regular polygon in cross section.

There are 4 discharge ports for the lower rotating body (Figure 5):

There are 4 discharge ports evenly distributed on the side of each lower rotating body, namely discharge port g107, discharge port h108, discharge port i109, discharge port j110, and two different rotating body discharge ports g107 are connected to the discharge port i109, the discharge port h108 is connected to the discharge port j110, the discharge port 10 intersects to form a node, each rotating body rotates counterclockwise, and the discharge port 10 rejoins once every 90° rotation, and each point rotates around the center of the respective rotating body , Under the action of gravity and traction, a rotating three-dimensional space network structure is formed.

The cross section of the product output from the discharge port 10 of the lower rotating body 9 is approximately square, and the product has a three-dimensional network structure.

Example 4

Three-dimensional network structure product forming system

The structure of the molding system includes an extruder 11 , a screen changer 12 , a metering pump 13 , a molding device 14 , a molding machine 15 , a tractor 16 , a cutting machine 17 , a conveyor 18 , and a blanking platform 19 connected in sequence.

When the molding system is running, the raw materials are extruded from the extruder 11, the impurities are filtered out through the screen changer 12, and the flow is adjusted by the metering pump. The forming machine is refined and formed, the formed product enters the tractor for finalization, the finalized product is cut into the desired shape by the drawing cutting machine, and then enters the conveyor for transportation, and finally falls into the blanking platform to form the finished product.

The above-mentioned embodiments are only preferred embodiments of the present invention, rather than all possible embodiments of the present invention. For those skilled in the art, any obvious changes made to it without departing from the principle and spirit of the present invention should be considered to be included in the protection scope of the claims of the present invention.

Claims (8)

1. A molding equipment for a three-dimensional network structure product, characterized in that the structure comprises a reduction motor (1), a crank eccentric shaft (2), a rotating body drive plate (3), a cross transition device (4), a slider ( 5), a slide rail (6), a number of multi-axis arranged in an orderly manner, a mold body (9), and a discharge port (10); The forming equipment (14) is connected in the following way: the gear motor (1) is linked to the crank eccentric shaft (2), the crank eccentric shaft (2) and the rotary body transmission plate (3) are linked by a flat key, and the rotary body transmission plate (3) The transverse opening grooves on both sides of the rotating body transmission plate (3) are connected to the upper pin of the cross transition device (4), and the longitudinal slider (5) and the slide rail (6) are installed under the cross transition device (4). (5) Connect the lower surface of the cross transition device (4), the slide rail (6) is embedded in the upper part of the mold body (9), and the direction of the slide rail (6) and the direction of the opening groove on the rotating body transmission plate (3) are crossed, and many The shaft is mainly composed of an upper rotating body (7) and a lower rotating body (8). The upper rotating body (7) is a crankshaft. The upper part of the crankshaft is connected with the rotating body transmission plate (3), and the rotating body transmission plate (3) is sleeved in an orderly manner. Arranged upper rotating body (7), the upper rotating body (7) is located at the lower part of the rotating body transmission plate (3), embedded in the center of the cross transition device (4), and the upper rotating body (7) and the lower rotating body (8) are connected by bolts , and the bottom of the lower rotating body (8) is provided with a discharge port (10). 2. The molding device for a three-dimensional network structure product according to claim 1, wherein the molding system structure where the molding device is located comprises an extruder (11), a screen changer (12), a metering pump connected in sequence (13), forming equipment (14), forming machine (15), tractor (16), cutting machine (17), conveyor (18), blanking platform (19). 3 . The molding device for a three-dimensional network structure product according to claim 1 , wherein the rotating body transmission plate ( 3 ) in the molding device ( 14 ) makes all the rotating bodies rotate simultaneously. 4 . 4 . The molding device for three-dimensional net-like structure products according to claim 1 , wherein the discharge port ( 10 ) in the molding device ( 14 ) is multi-axial and the cross-sectional arrangement is a regular polygon. 5 . 5. A product with a three-dimensional network structure, characterized in that, the forming equipment according to claim 1 is used to carry out orderly bonding and forming in a mold. 6. The three-dimensional network structure product according to claim 5, characterized in that, the multi-axis rotates with each other, and the two intersection points of the discharge ports (10) between adjacent multi-axis are mutually bonded to form nodes, A three-dimensional network structure is formed under the action of rotational force, gravity and traction. 7 . The three-dimensional network structure product according to claim 5 , wherein the three-dimensional network structure product is made of polyethylene, polypropylene, and polyolefin elastomer. 8 . 8. The application of the three-dimensional net structure product according to claim 7, characterized in that, it is used in the household industry or in place of buffer materials.

Images