CN116118139A - Tape casting extruder for tpx release film - Google Patents

Abstract

The invention relates to the technical field of casting machines. The invention discloses a casting extruder for tpx release film, comprising: a base, a stirring box, a heating box, a die head and a controller. The stirring box is set On the top of the base, the heating box is set on the left end of the stirring box, the die head is set on the left end of the heating box, the controller is fixedly installed on the front side of the stirring box, and the extrusion mechanism is set on the Right end of the mixing box. The casting extruder used for tpx release film can stably transport plastic raw materials, avoid unstable feeding speed or material jams, ensure the quality of finished products, and have self-cleaning characteristics, avoid wall hanging phenomenon, and can automatically The molded plastic film is pulled out without manual operation, easy to maintain, time-saving and labor-saving, and adopts the technical solution of cutting after indentation, which can automatically cut off the remaining material, collect and crush the remaining material, so that it can be reused , without manual collection.

Description

A casting extruder for tpx release film

technical field

The invention relates to the technical field of casting machines, in particular to a casting extruder for TPX release films.

Background technique

Casting is a plastic film production process. First, the raw materials are plasticized and melted by an extruder, extruded through a T-shaped structure forming die, and cast in sheet form to the roll surface of a cooling roller that rotates smoothly. The film is cooled After being cooled and shaped on the roller, the product is rolled up after traction and trimming. The extruded products of Tpx release film, such as film, coated paper, tube, round rod, etc., are used in frozen food packaging, release paper, It is used in baking corrugated paper, release paper for epoxy resin hardening, etc.;

The main working principle of the tape casting extruder is to dry the polymer material, mix it with the required fillers, plasticizers, heat stabilizers and other plastic additives according to the proportion, then suck it into the hopper, and enter Barrel screw, the screw in the barrel rotates to convey the material forward. Due to the use of electric heating outside the barrel, the temperature of the material rises and the screw in the barrel rotates, so that the material is plasticized and melted and extruded from the mold mouth evenly. The flake-like molten material is cast onto a smoothly rotating roller, and then after multi-stage traction and edge trimming, it is finally wound into a film product;

In the prior art, trimming is required before the product is rolled, and the remaining material needs to be processed before being processed here. However, the existing casting extruder uses a cutter to cut off the remaining material. The traction force of pulling the plastic film is not constant, resulting in the inconstant width of the cut off material, and the remaining material cannot be recycled and reused automatically, it needs to be manually collected and processed, which is time-consuming and laborious, and most of the existing casting extruders It is manually or using a feeding machine to pour the raw materials into the feeding hopper. The raw materials enter the extruder under the action of their own weight. The feeding speed of this process is unstable. When the collecting hopper jams, it will lead to There may be air bubbles, which will affect the quality of the finished product. In addition, the formed plastic film cannot be pulled automatically, and it needs to be pulled manually before each use.

Contents of the invention

The purpose of the present invention is to provide a casting extruder for tpx release film, to at least solve the problem that the existing technology cannot automatically pull the formed plastic film, the difficulty of automatically removing the remaining material, and the inability to recycle the remaining material and feed the material Problems that are discontinuous and affect the quality of finished products.

To achieve the above object, the present invention provides the following technical solutions: a casting extruder for tpx release film, comprising: a base, a stirring box, a heating box, a die and a controller, the stirring box is arranged on The top of the base, the heating box is arranged at the left end of the stirring box, the die head is arranged at the left end of the heating box, the controller is fixedly installed on the front side of the stirring box, and the heating box and the controller The electrical connection also includes: an extrusion mechanism, which is arranged on the right end of the mixing box, and the extrusion mechanism is controlled by a controller; a feeding mechanism is arranged on the top of the mixing box, and the feeding mechanism It is controlled by the controller; the flow extension mechanism is arranged on the left side of the base, and the flow extension mechanism is controlled by the controller; the surplus material recovery mechanism is arranged on the front side of the flow extension mechanism, and the surplus material recovery mechanism passes through controller manipulation;

The purpose is to melt and extrude the material. The extrusion mechanism includes: an extrusion motor, which is fixedly installed on the top right end of the base and is electrically connected to the controller; the first gear is fixedly installed on the The output end of the above-mentioned extrusion motor; the number of conjugate screws is two, which are respectively rotatably installed on the front and rear sides of the right end of the inner cavity of the mixing box, and the two conjugate screws are engaged in conjugate engagement; the number of the second gear There are two, fixedly mounted on the right ends of the two conjugate screws respectively, and the two second gears are both meshed with the first gear.

The purpose is to avoid material hanging on the wall. Preferably, the pitch of the blades of the conjugated screw is about half of the diameter of the rotating shaft, and the blades between the two conjugated screws mesh with each other.

Preferably, the feeding mechanism includes: a feeding port, which is opened on the top of the stirring box; a hopper is fixedly installed on the top of the feeding port; a feeding assembly is arranged on the rear side of the base , and is electrically connected with the controller.

The purpose is to continuously feed materials. Preferably, the feeding assembly includes: a bracket, which is arranged on the rear side of the base; a stirring motor is fixedly installed on the top of the bracket and is electrically connected to the controller; The rotating shaft is fixedly installed on the output end of the stirring motor; the number of stirring rods is several, which are respectively arranged on the side wall of the rotating shaft along the circumference; the screw conveying rod is arranged at the bottom of the rotating shaft, and is connected with the feeding The mouth is suitable for plugging.

The purpose is to continuously convey the raw materials into the inner cavity of the mixing box. Preferably, the flow extension mechanism includes: a mounting frame, which is arranged on the left side of the base; a cooling roller is rotatably mounted on the mounting frame The right end of the front and rear sides of the inner cavity, and the cooling roller is located below the die head; the first motor is arranged on the rear side of the mounting frame, the cooling roller is fixedly connected to the output end of the first motor, and the first A motor is electrically connected to the controller; the peeling roller is rotatably installed in the middle of the front and rear sides of the inner cavity of the mounting frame, and is in close contact with the cooling roller; the number of traction rollers is two, and they can be rotatably installed At the left end of the front and rear sides of the inner cavity of the installation frame, and the side walls of the two traction rollers are in close contact; the second motor is arranged on the rear side of the installation frame, and the traction roller at the top is in contact with the second motor. The output end of the motor is fixedly connected, and the first motor is electrically connected to the controller; the guide plate is arranged on the front and rear sides of the inner cavity of the mounting frame, and the guide plate is gradually inclined downward from right to left; The peeling scraper is fixedly installed on the top of the installation seat, and the peeling scraper is in close contact with the upper left corner of the cooling roller.

The purpose is to cut off the excess edge material of the tpx release film. Preferably, the residual material recovery mechanism includes: a mounting rod, which is arranged on the top of the mounting frame; a lifting assembly, which is arranged on the left side of the top of the mounting frame , and is electrically connected with the controller; the return hopper is arranged on the front side of the inner cavity of the installation frame, and the front side of the return hopper is open; the recovery component is arranged on the back side of the return hopper, and is connected with the The controller is electrically connected to the trimming component, which is arranged at the bottom of the lifting component.

Preferably, the lifting assembly includes: a mounting base, fixedly installed on the left side of the top of the mounting frame; an electric control slide, arranged on the right side of the mounting base, and electrically connected to the controller; a lifting base, Fixedly installed on the output end of the electric control slide; the installation plate is arranged on the bottom of the lifting seat; the number of slide bars is two, which are slidably installed on the front and rear ends of the installation plate respectively; Blocks, two in number, respectively arranged on the tops of the two slide bars; slide frames, fixedly installed on the bottoms of the two slide bars; springs, two in number, respectively sleeved on the two slide bars the outer wall of the rod, and one end is respectively clamped to the bottom of the mounting plate, and the other end is respectively clamped to the top of the sliding frame.

The purpose is to recycle the remaining materials. Preferably, the recovery assembly includes: two recovery rollers, which are rotatably installed on the top of the left and right side walls of the inner cavity of the return hopper, and the two recovery rollers The side walls of the rollers are in close contact; the third motor is fixedly installed on the right side of the return hopper, the recovery roller on the front side is fixedly connected to the output end of the third motor, and the third motor is electrically connected to the controller connection; the third gear is rotatably installed on the left side of the return hopper, and the third gear is fixedly connected with the recovery roller located on the front side; the fourth gear is rotatably installed on the left side of the return hopper, And it is matched and meshed with the third gear; there are two crushing rollers, which are respectively rotatably installed at the bottom of the left and right side walls of the inner cavity of the return hopper; there are two fifth gears, which are respectively fixedly installed on At the left ends of the two crushing rollers, the two fifth gears mesh with each other, and the fifth gear on the front side meshes with the fourth gear; the guide groove is arranged on the rear side of the inner cavity of the mounting frame, And the guide groove is gradually inclined downward from the rear side to the front side.

The purpose is to cut off the remaining material. Preferably, the trimming assembly includes: a driven roller, which is rotatably installed on the front and rear sides of the inner cavity of the sliding frame; two creasing knives, which are respectively arranged on The front and rear ends of the outer wall of the driven roller; the number of cutters is two, which are respectively set at the left and front ends of the sliding frame; the number of limit rods is two, and the number is two, respectively, at the left and front ends of the social self-healing lifting seat There are two first connecting rods, which are respectively rotatably installed on the left sides of the two limit rods; the second connecting rods are two in number, and one end is respectively rotatably installed on the two first connecting rods; The bottom end of the rod, and the other end is rotatably mounted on the tops of the two cutters; the baffle plate is two in number, and is respectively arranged on the left side of the two first connecting rods; the blades are in the number of two, respectively arranged at the bottom ends of the two baffles.

The purpose is to crush the remaining materials so as to be reused. Preferably, the crushing roller is equidistantly provided with several toothed knives from front to back, and the distance between adjacent toothed knives is equal to the width of the toothed knife. The crushing rollers are installed in opposite directions and inserted into each other.

The beneficial effect of the present invention compared with prior art is:

1. In the present invention, the output end of the stirring motor is controlled by the controller to drive the rotating shaft to rotate. The stirring rod stirs the plastic raw materials in the inner cavity of the upper hopper, and cleans the inner wall of the upper hopper. With the rotation of the screw conveying rod, the screw The helical blade of the conveying rod pushes the powdery raw material into the inner cavity of the mixing box for conveying. Therefore, the plastic raw material can be conveyed stably, avoiding unstable feeding speed or material jam, and ensuring the quality of the finished product.

2. In the present invention, the output end of the extrusion motor is controlled by the controller to drive the first gear to rotate, and the two conjugate screws are driven to rotate in the same direction under the meshing action of the first gear and the two second gears. Under the action of friction between the inner walls of the stirring box and the heating box, the helical blades of the conjugated screw push the raw material to the left for conveying. Due to the conjugate engagement between the two conjugated screws, that is, when the spiral of one of the conjugated screws The waste in the groove will be extruded by the helical blade of another conjugate screw, so it has self-cleaning characteristics, avoids wall hanging phenomenon, simple maintenance, and saves time and effort.

3. In the present invention, the melted plastic raw material drips from the die on the top of the cooling roller, and the controller controls the output end of the first motor to drive the cooling roller to rotate. With the rotation of the cooling roller, the plastic liquid is cast on the surface of the cooling roller The plastic film is formed, and the formed plastic film rotates to the position of the peeling blade, and is peeled off by the peeling blade. Under the action of the plastic film's own gravity, the peeled plastic film bypasses the peeling roller and enters two Between the traction rollers, the controller controls the output end of the second motor to drive the traction rollers to rotate. When the two traction rollers rotate inward at the same time, the plastic film is pulled out from the left side. Therefore, the formed plastic film can be automatically pulled out. out without manual operation.

4. In the process of pulling the plastic film through the pulling roller, the controller controls the output end of the electronically controlled sliding table to drive the lifting seat to move downward until the sliding frame contacts the mounting frame, the driven roller and the peeling roller are in close contact, and the indentation knife Make indentations on the front and rear sides of the plastic film, and as the traction roller pulls the plastic film, the two cutters cut the remaining material on both sides of the plastic film, and the controller controls the output end of the electric control slide to drive the lifting seat to continue downward During this process, the spring between the mounting plate and the sliding frame is compressed, and the distance between the mounting plate and the sliding frame is shortened. Under the connection of the two second connecting rods, the two first connecting rods drive the two The first baffle rotates downward, and the blades at the bottom of the two baffles cut off the remaining material on the front and rear sides of the plastic film. Therefore, the technical solution of cutting after limiting the indentation can automatically cut off the remaining material.

5. In the present invention, the output end of the third motor is controlled by the controller to drive the two recovery rollers to rotate inward at the same time. Under the meshing of the third gear, the fourth gear and the fifth gear, the two crushing rollers rotate inward at the same time, and are The cut leftovers enter the return hopper under the traction of two recovery rollers, and then are crushed into plastic fragments by the inwardly rotating crushing rollers. Therefore, the leftovers can also be collected and crushed for reuse without manual collection .

Description of drawings

Fig. 1 is a schematic diagram of the structure of the present invention.

Fig. 2 is a schematic diagram of the structure of the present invention.

Fig. 3 is a front view of the present invention.

Figure 4 is an enlarged view of A.

Fig. 5 is a front sectional view of the present invention.

Figure 6 is an enlarged view of B.

Fig. 7 is a top view of the present invention.

Fig. 8 is a left view of the present invention.

Fig. 9 is a left sectional view of the recovery assembly.

In the figure: 2, base; 3, stirring box; 4, heating box; 5, die head; 6, extrusion mechanism; 61, extrusion motor; 62, first gear; 63, second gear; 64, total Yoke screw; 7, feeding mechanism; 71, feeding port; 72, hopper; 73, feeding assembly; 731, bracket; 732, stirring motor; 733, rotating shaft; 734, stirring rod; 735, screw conveying rod; 8 , flow extension mechanism; 81, mounting frame; 82, cooling roller; 83, first motor; 84, peeling roller; 85, traction roller; 86, second motor; 87, guide plate; 88, peeling blade; 9, Surplus material recovery mechanism; 91, installation rod; 92, lifting assembly; 921, mounting seat; 922, electric control slide table; 923, lifting seat; 924, mounting plate; 925, sliding rod; Spring; 928, sliding frame; 93, return hopper; 94, recovery assembly; 941, recovery roller; 942, third motor; 943, third gear; 944, fourth gear; 945, fifth gear; 946, crushing roller ; 947, guide groove; 95, trimming assembly; 951, driven roller; 952, indentation knife; , baffle; 958, blade; 10, controller.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Please refer to Figures 1-9, the present invention provides a technical solution for casting extruder for tpx release film, including: base 2, stirring box 3, heating box 4, die head 5, extrusion mechanism 6, Feeding mechanism 7, flow extension mechanism 8, residual material recovery mechanism 9 and controller 10, the stirring box 3 is set on the top of the base 2, the heating box 4 is set on the left end of the stirring box 3, and the die head 5 is set on the heating box 4 The controller 10 is fixedly installed on the front side of the mixing box 3, and the heating box 4 is electrically connected to the controller 10. The extrusion mechanism 6 is arranged on the right end of the mixing box 3, and the extrusion mechanism 6 is controlled by the controller 10. The feeding mechanism 7 is arranged on the top of the mixing box 3, the feeding mechanism 7 is controlled by the controller 10, the flow extension mechanism 8 is arranged on the left side of the base 2, the flow extension mechanism 8 is controlled by the controller 10, and the remaining material recovery mechanism 9 Set on the front side of the flow extension mechanism 8, the residual material recovery mechanism 9 is controlled by the controller 10;

The raw material is stably transported into the inner cavity of the mixing box 3 through the feeding mechanism 7, the extrusion mechanism 6 transports the raw material from right to left, the plastic melts in the heating box 4, and is extruded through the die head 5, and the flow extension mechanism 8. The extruded plastic is cast into a plastic film, and the residual material recovery mechanism 9 cuts and collects the excess material;

The extrusion mechanism 6 includes: an extrusion motor 61, a first gear 62, a second gear 63 and a conjugate screw 64. The extrusion motor 61 is fixedly installed on the top right end of the base 2 and is electrically connected to the controller 10. A gear 62 is fixedly installed on the output end of the extruding motor 61. There are two conjugate screws 64, which are respectively rotatably installed on the front and rear sides of the right end of the inner cavity of the mixing box 3, and the two conjugate screws 64 are engaged in conjugate engagement. , the cross-section of the blades of the conjugated screw 64 is trapezoidal, so that the raw material is transported to the left by the helical blades of the conjugated screw 64 under the friction between the raw material itself and the inner walls of the stirring box 3 and the heating box 4, There are two second gears 63 , which are respectively fixedly installed on the right ends of the two conjugated screw rods 64 , and the two second gears 63 are both meshed with the first gear 62 .

As a preferred solution, further, as shown in Figure 2, the pitch of the blades of the conjugated screw 64 is about half of the diameter of the rotating shaft, and the blades between the two conjugated screws 64 are engaged with each other, that is, when one of them The material in the helical groove of the yoke screw 64 will be extruded by the helical blade of the other yoke screw 64, which has self-cleaning properties and avoids the phenomenon of material hanging on the wall.

As a preferred solution, further, as shown in Figure 2-4, the feeding mechanism 7 includes: a feeding port 71, a hopper 72 and a feeding assembly 73, the feeding port 71 is opened on the top of the mixing box 3, and the feeding hopper 72 It is fixedly installed on the top of the feeding port 71 , and the feeding assembly 73 is arranged on the rear side of the base 2 and is electrically connected with the controller 10 .

As a preferred solution, further, as shown in Figure 3, the feeding assembly 73 includes: a support 731, a stirring motor 732, a rotating shaft 733, a stirring rod 734 and a screw conveying rod 735, and the support 731 is arranged on the rear side of the base 2, stirring The motor 732 is fixedly installed on the top of the bracket 731, and is electrically connected with the controller 10. The rotating shaft 733 is fixedly installed on the output end of the stirring motor 732. There are several stirring rods 734, which are respectively arranged on the sides of the rotating shaft 733 in the circumferential direction. wall, the screw conveying rod 735 is arranged at the bottom of the rotating shaft 733, and is adapted to be plugged with the feed port 71, the output end of the stirring motor 732 drives the rotating shaft 733 to rotate, and the stirring rod 734 cleans the inner wall of the upper hopper 72, along with With the rotation of the screw delivery rod 735, the helical blades of the screw delivery rod 735 push the powdery raw materials into the inner cavity of the mixing box 3 for delivery.

As a preferred solution, further, as shown in Figures 3-4, the flow extension mechanism 8 includes: a mounting frame 81, a cooling roller 82, a first motor 83, a peeling roller 84, a traction roller 85, a second motor 86, and a guide plate 87 and peeling blade 88, the mounting frame 81 is arranged on the left side of the base 2, the cooling roller 82 is rotatably installed on the right end of the inner cavity of the mounting frame 81, and the cooling roller 82 is located below the die head 5, cooling The function of the roller 82 is to rapidly cool the film so that the film can obtain good optical properties. The diameter of the cooling roller is between 600-800 mm, and the rotating speed of the roller is required to match the casting speed of the film. The speed can be stepped up and down within the working speed range, and the operation is stable; the roller surface should be smooth and smooth, with a roughness of Ra It should be no more than 0.02μm; there is circulating cooling water in the roller to cool down the roller body. The distance between the cooling roller and the exit of the forming mold is generally controlled within the range of 25-70. In order to improve the cooling effect, in the actual implementation, positive and negative pressure air knives can also be installed before and after the die head, and the positive pressure air knives blow the compressed air. film surface, while the negative pressure bellows takes away the air between the film and the casting roller, making the film close to the roller surface, cooling and forming on the cooling roller, the first motor 83 is arranged on the rear side of the mounting frame 81, and the cooling roller 82 is fixedly connected to the output end of the first motor 83, and the first motor 83 is electrically connected to the controller 10. The peeling roller 84 is rotatably installed in the middle position of the front and rear sides of the inner cavity of the mounting frame 81, and is connected with the cooling roller 82 In close contact, the number of traction rollers 85 is two, which can be rotatably installed on the left ends of the front and rear sides of the inner cavity of the mounting frame 81, and the side walls of the two traction rollers 85 are in close contact. The second motor 86 is arranged on the side of the mounting frame 81. On the rear side, the traction roller 85 located above is fixedly connected to the output end of the second motor 86, and the first motor 83 is electrically connected to the controller 10, and the guide plate 87 is arranged on the front and rear sides of the inner cavity of the mounting bracket 81, and guides The plate 87 is gradually inclined downward from right to left, and the peeling scraper 88 is fixedly installed on the top of the mounting base 81, and the peeling scraper 88 is in close contact with the upper left corner of the cooling roller 82, and the melted plastic drips from the die head 5 on the cooling roller. On the top of the roller 82, the controller 10 controls the output end of the first motor 83 to drive the cooling roller 82 to rotate. With the rotation of the cooling roller 82, the plastic liquid is cast on the surface of the cooling roller 82 to form a plastic film, and the formed plastic film rotates to After the peeling roller 84 is in position, it is peeled off by the peeling roller 84, and the output end of the controller 10 controls the second motor 86 to drive the traction roller 85 to rotate, and the two traction rollers 85 rotate inwardly at the same time, and the plastic film is pulled out from the left side.

As a preferred solution, further, as shown in Figures 5-6, the residual material recovery mechanism 9 includes: a mounting rod 91, a lifting assembly 92, a return hopper 93, a receiving assembly 94 and a trimming assembly 95, and the mounting rod 91 is arranged on The top of the mounting frame 81, the lifting assembly 92, is arranged on the left side of the top of the mounting frame 81, and is electrically connected with the controller 10. The return hopper 93 is arranged on the front side of the mounting frame 81 inner cavity, and the front side of the return hopper 93 is Set openly, the recycling assembly 94 is arranged on the rear side of the return hopper 93 and is electrically connected to the controller 10 , and the trimming assembly 95 is arranged at the bottom of the lifting assembly 92 .

As a preferred solution, further, as shown in Figures 5-6, the lifting assembly 92 includes: a mounting base 921, an electric control slide 922, a lifting base 923, a mounting plate 924, a sliding rod 925, a limit block 926, and a spring 927 and the sliding frame 928, the mounting base 921 is fixedly installed on the left side of the top of the mounting frame 81, the electric control sliding table 922 is arranged on the right side of the mounting base 921, and is electrically connected with the controller 10, and the lifting base 923 is fixedly installed on the electric control The output end of the slide table 922, the mounting plate 924 is arranged on the bottom of the lifting seat 923, the number of slide bars 925 is two, and are slidably installed on the front and rear ends of the mounting plate 924 respectively, and the number of the limiting blocks 926 is two, respectively Set on the top of the two sliding rods 925, the sliding frame 928 is fixedly installed on the bottom of the two sliding rods 925, the number of springs 927 is two, respectively sleeved on the outer walls of the two sliding rods 925, and one end is respectively clamped on the mounting The bottom and the other end of the board 924 are snapped to the top of the sliding frame 928 respectively.

As a preferred solution, further, as shown in Figures 5-6, the recycling assembly 94 includes: a recycling roller 941, a third motor 942, a third gear 943, a fourth gear 944, a fifth gear 945, a crushing roller 946 and a guide There are two grooves 947 and two recovery rollers 941, which can be rotatably installed on the top of the left and right side walls of the inner cavity of the return hopper 93, and the side walls of the two recovery rollers 941 are in close contact, and the third motor 942 is fixedly installed on the return hopper 93 On the right side, the recovery roller 941 on the front side is fixedly connected to the output end of the third motor 942, and the third motor 942 is electrically connected to the controller 10, and the third gear 943 is rotatably installed on the left side of the return hopper 93 , and the third gear 943 is fixedly connected to the recovery roller 941 located on the front side, the fourth gear 944 is rotatably installed on the left side of the return hopper 93, and is matched and meshed with the third gear 943, and the number of crushing rollers 946 is two one, respectively rotatably installed at the bottom of the left and right side walls of the inner cavity of the return hopper 93, the number of the fifth gear 945 is two, fixedly installed on the left ends of the two crushing rollers 946 respectively, and the two fifth gears 945 mesh with each other, And the fifth gear 945 on the front side meshes with the fourth gear 944, the guide groove 947 is arranged on the rear side of the inner cavity of the mounting frame 81, and the guide groove 947 gradually slopes downward from the rear side to the front side, the controller 10 controls the first The output end of the three motors 942 drives two recovery rollers 941 to rotate inwardly at the same time, and under the meshing of the third gear 943, the fourth gear 944 and the fifth gear 945, the two crushing rollers 946 rotate inwardly at the same time, and the cut The remaining material enters the return hopper 93 under the traction of the two recycling rollers 941, and is crushed into plastic fragments by the crushing roller 946 rotating inwardly.

As a preferred solution, further, the trimming assembly 95 includes: driven roller 951, creasing knife 952, cutting knife 953, limit rod 954, first connecting rod 955, second connecting rod 956 and baffle plate 957, from The driven roller 951 is rotatably installed on the front and rear sides of the inner cavity of the sliding frame 928. There are two creasing knives 952, which are respectively arranged at the front and rear ends of the outer wall of the driven roller 951. The number of cutters 953 is two, which are respectively set. At the left front and rear ends of the sliding frame 928, there are two limit rods 954, which are respectively at the left front and rear ends of the social self-healing lifting seat 923, and the first connecting rods 955 are two in number, which are respectively rotatably installed on On the left side of the two limiting rods 954, there are two second connecting rods 956, one end of which is respectively rotatably mounted on the bottom ends of the two first connecting rods 955, and the other end is respectively rotatably mounted on the two cutting rods. The top of knife 953, baffle plate 957 quantity is two, is arranged on the left side of two first connecting rods 955 respectively; During the process of pulling the plastic film, the controller 10 controls the output end of the electronically controlled sliding table 922 to drive the lifting seat 923 to move downward until the sliding frame 928 is in contact with the mounting frame 81, the driven roller 951 is in close contact with the peeling roller 84, and the creasing knife 952 creasing the front and rear sides of the plastic film, and as the traction roller 85 pulls the plastic film, the two cutters 953 cut the remaining material on both sides of the plastic film, and the controller 10 controls the drive of the output end of the electric control slide 922 Lifting seat 923 continues to move downwards, and the spring 927 between mounting plate 924 and sliding frame 928 is stressed and compressed during this process, and the distance between mounting plate 924 and sliding frame 928 is shortened, and the two second connecting rods 956 Under the action of connection, the two first connecting rods 955 drive the two baffles 957 to rotate downwards, and the blades 958 at the bottom of the two baffles 957 cut off the surplus material on the front and rear sides of the plastic film.

As a preferred solution, furthermore, the pulverizing roller 946 is equidistantly provided with several toothed knives from front to back, the distance between adjacent toothed knives is equal to the width of the toothed knife, and the two adjacent pulverizing rollers 946 are installed in opposite directions and inserted into each other. connected, thereby ensuring that the relative movement of the tooth knife at the top of the pulverizing roller 946 can pulverize the remaining material.

Its detailed connection means is a well-known technology in the art. The following mainly introduces the working principle and process, and the specific work is as follows.

Step 1, pour the plastic raw material into the inner cavity of the upper hopper 72, the controller 10 controls the output end of the stirring motor 732 to drive the rotating shaft 733 to rotate, the stirring rod 734 stirs the plastic raw material in the inner cavity of the upper hopper 72, and The inner wall of the upper hopper 72 is cleaned, and with the rotation of the screw delivery rod 735, the helical blade of the screw delivery rod 735 pushes the powdery raw material into the inner cavity of the mixing box 3 for delivery;

Step 2, the controller 10 controls the output end of the extrusion motor 61 to drive the first gear 62 to rotate, and under the meshing action of the first gear 62 and the two second gears 63 to drive the two conjugate screws 64 to rotate in the same direction, the raw material is Under the action of its own weight and the friction between the inner wall of the stirring box 3 and the heating box 4, the helical blade of the conjugate screw 64 pushes the raw material to the left for conveying, and stirs in the inner cavity of the stirring box 3, and passes through The heating box 4 is heated and melted, and the plastic material is extruded at the die head 5. Due to the conjugate engagement between the two conjugated screw rods 64, that is, when the waste in the helical groove of one of the conjugated screw rods 64 will be absorbed by the other The helical blades of the conjugate screw 64 are extruded, which has self-cleaning properties and avoids wall hanging;

Step 3, the melted plastic material drips from the die head 5 onto the top of the cooling roller 82, and the controller 10 controls the output end of the first motor 83 to drive the cooling roller 82 to rotate. With the rotation of the cooling roller 82, the plastic liquid flows on the cooling roller The surface of 82 is cast to form a plastic film. After the formed plastic film rotates to the position of the peeling blade 88, it is peeled off by the peeling blade 88. Under the action of the plastic film's own gravity, the peeled plastic film bypasses the peeling roller 84. Under the guidance of the plate 87, it enters between the two traction rollers 85, the controller 10 controls the output end of the second motor 86 to drive the traction roller 85 to rotate, and the two traction rollers 85 rotate inward at the same time, pulling the plastic film from the left side Then, two traction rollers 85 tighten the plastic film, so that after the plastic film rotates to the stripping roller 84 position, it is peeled off by the stripping roller 84;

Step 4, during the process of pulling the plastic film by the pulling roller 85, the controller 10 controls the output end of the electric control slide 922 to drive the lifting seat 923 to move downward until the sliding frame 928 contacts the mounting frame 81, and the driven roller 951 and the peeling roller 84 In close contact, the indentation knife 952 indents the front and rear sides of the plastic film, and the traction roller 85 pulls the plastic film, and the two cutters 953 cut the remaining material on both sides of the plastic film;

Step 5, the controller 10 controls the output end of the electric control slide 922 to drive the lifting seat 923 to continue to move downward. The distance between 928 is shortened. Under the connecting action of the two second connecting rods 956, the two first connecting rods 955 drive the two baffles 957 to rotate downward. The remaining material on both sides is cut off;

Step 6, the cut off material slides into the inner cavity of the return hopper 93 along the guide groove 947, the controller 10 controls the output end of the third motor 942 to drive the two recovery rollers 941 to rotate inwardly at the same time, and the third gear 943, Under the meshing of the fourth gear 944 and the fifth gear 945, the two crushing rollers 946 rotate inwardly at the same time, and the cut off material enters the return hopper 93 under the traction of the two recovery rollers 941, and is then crushed by the inwardly rotating rollers. Roller 946 shreds into plastic pieces;

The invention can transport plastic raw materials stably, avoids unstable feeding speed or material jam, ensures the quality of finished products, and can also collect and crush the remaining materials for reuse.

The above-mentioned embodiments are only to illustrate the technical concept and characteristics of the present invention, and the purpose is to enable those skilled in the art to understand and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes or modifications made according to the spirit of the present invention shall fall within the protection scope of the present invention.

Claims (10)

1. A casting extruder for tpx release film, including: base (2), stirring box (3), heating box (4), die head (5) and controller (10), the The stirring box (3) is set on the top of the base (2), the heating box (4) is set at the left end of the stirring box (3), and the die head (5) is set at the top of the heating box (4) On the left end, the controller (10) is fixedly installed on the front side of the stirring box (3), and the heating box (4) is electrically connected to the controller (10), characterized in that the tpx release Film cast extruders also include: The extrusion mechanism (6) is arranged at the right end of the stirring box (3), and the extrusion mechanism (6) is controlled by the controller (10); The feeding mechanism (7) is arranged on the top of the mixing box (3), and the feeding mechanism (7) is controlled by the controller (10); The flow extension mechanism (8) is arranged on the left side of the base (2), and the flow extension mechanism (8) is controlled by the controller (10); The residual material recovery mechanism (9) is arranged on the front side of the flowing flow mechanism (8), and the residual material recovery mechanism (9) is controlled by the controller (10); The extrusion mechanism (6) includes: Extrusion motor (61), fixedly installed on the top right end of the base (2), and electrically connected with the controller (10); The first gear (62) is fixedly installed on the output end of the extrusion motor (61); Conjugate screws (64), two in number, are rotatably installed on the front and rear sides of the right end of the inner cavity of the stirring box (3), and the two conjugate screws (64) are conjugately engaged; There are two second gears (63), which are respectively fixedly installed on the right ends of the two conjugate screws (64), and both of the second gears (63) mesh with the first gear (62). 2. A casting extruder for tpx release film according to claim 1, characterized in that: the blade pitch of the conjugate screw (64) is about half of the diameter of the rotating shaft, and two The vanes between the conjugated screws (64) are engaged with each other. 3. A casting extruder for tpx release film according to claim 2, characterized in that: the feeding mechanism (7) includes: The feed inlet (71) is opened on the top of the stirring box (3); The upper hopper (72) is fixedly installed on the top of the feed inlet (71); The feeding component (73) is arranged on the rear side of the base (2), and is electrically connected with the controller (10). 4. A casting extruder for tpx release film according to claim 3, characterized in that: the feeding assembly (73) includes: a bracket (731), arranged on the rear side of the base (2); a stirring motor (732), fixedly installed on the top of the support (731), and electrically connected to the controller (10); The rotating shaft (733) is fixedly installed on the output end of the stirring motor (732); There are several stirring rods (734), which are respectively circumferentially arranged on the side wall of the rotating shaft (733); The screw conveying rod (735) is arranged at the bottom of the rotating shaft (733), and fits and plugs into the feeding port (71). 5. A casting extruder for tpx release film according to claim 4, characterized in that: the casting mechanism (8) includes: The mounting frame (81) is arranged on the left side of the base (2); The cooling roller (82) is rotatably installed at the right ends of the front and rear sides of the inner cavity of the installation frame (81), and the cooling roller (82) is located below the die head (5); The first motor (83) is arranged on the rear side of the installation frame (81), the cooling roller (82) is fixedly connected to the output end of the first motor (83), and the first motor (83) is connected to the output end of the first motor (83). The controller (10) is electrically connected; The peeling roller (84) is rotatably installed in the middle of the front and rear sides of the inner cavity of the installation frame (81), and is in close contact with the cooling roller (82); There are two traction rollers (85), which can be rotatably installed at the left ends of the front and rear sides of the inner cavity of the installation frame (81), and the side walls of the two traction rollers (85) are in close contact; The second motor (86) is arranged on the rear side of the installation frame (81), the traction roller (85) located above is fixedly connected to the output end of the second motor (86), and the first motor ( 83) electrically connected with the controller (10); The guide plate (87) is arranged on the front and rear sides of the inner cavity of the installation frame (81), and the guide plate (87) gradually slopes downward from right to left; The stripping scraper (88) is fixedly installed on the top of the installation seat (81), and the stripping scraper (88) is in close contact with the upper left corner of the cooling roller (82). 6. A casting extruder for tpx release film according to claim 5, characterized in that: the residual material recovery mechanism (9) includes: The installation rod (91) is arranged on the top of the installation frame (81); The lifting component (92) is arranged on the top left side of the installation frame (81), and is electrically connected with the controller (10); The return hopper (93) is arranged on the front side of the inner cavity of the installation frame (81), and the front side of the return hopper (93) is open; A recovery component (94), arranged on the rear side of the return hopper (93), and electrically connected to the controller (10); The trimming component (95) is arranged at the bottom of the lifting component (92). 7. A casting extruder for tpx release film according to claim 6, characterized in that: the lifting assembly (92) includes: The mounting base (921) is fixedly mounted on the top left side of the mounting frame (81); The electric control slide (922) is arranged on the right side of the mounting base (921), and is electrically connected with the controller (10); The lifting seat (923) is fixedly installed on the output end of the electric control slide (922); The mounting plate (924) is arranged on the bottom of the lifting seat (923); There are two sliding rods (925), which are respectively slidably installed at the front and rear ends of the mounting plate (924); There are two limiting blocks (926), which are respectively arranged on the tops of the two sliding bars (925); The sliding frame (928) is fixedly installed on the bottom of the two sliding bars (925); The number of springs (927) is two, which are respectively sleeved on the outer walls of the two sliding rods (925), and one end is respectively clamped to the bottom of the mounting plate (924), and the other end is respectively clamped to the sliding frame (928 )the top of. 8. A casting extruder for tpx release film according to claim 7, characterized in that: the recovery component (94) includes: There are two recovery rollers (941), which can be rotatably installed on the top of the left and right side walls of the inner cavity of the return hopper (93), and the side walls of the two recovery rollers (941) are in close contact; The third motor (942) is fixedly installed on the right side of the return hopper (93), the recovery roller (941) on the front side is fixedly connected to the output end of the third motor (942), and the third The motor (942) is electrically connected to the controller (10); The third gear (943) is rotatably installed on the left side of the return hopper (93), and the third gear (943) is fixedly connected to the recovery roller (941) on the front side; The fourth gear (944) is rotatably installed on the left side of the return hopper (93) and fits and meshes with the third gear (943); There are two crushing rollers (946), which are respectively rotatably installed at the bottom of the left and right side walls of the inner cavity of the return hopper (93); There are two fifth gears (945), which are respectively fixedly installed on the left ends of the two crushing rollers (946). The two fifth gears (945) mesh with each other and are located on the fifth The gear (945) meshes with the fourth gear (944); The guide groove (947) is arranged at the rear side of the inner cavity of the installation frame (81), and the guide groove (947) gradually slopes downward from the rear side to the front side. 9. A casting extruder for tpx release film according to claim 8, characterized in that: the trimming component (95) includes: The driven roller (951) is rotatably installed on the front and rear sides of the inner cavity of the sliding frame (928); There are two creasing knives (952), which are respectively arranged at the front and rear ends of the outer wall of the driven roller (951); There are two cutters (953), which are respectively arranged at the front and rear ends of the left side of the sliding frame (928); There are two limit rods (954), which are respectively the left front and rear ends of the social self-healing lifting seat (923); There are two first connecting rods (955), which are respectively rotatably installed on the left sides of the two limit rods (954); There are two second connecting rods (956), one end of which is rotatably mounted on the bottom ends of the two first connecting rods (955), and the other end is respectively rotatably mounted on the two cutting knives top of (953); There are two baffles (957), which are respectively arranged on the left side of the two first connecting rods (955); There are two blades (958), which are respectively arranged at the bottoms of the two baffles (957). 10. A casting extruder for tpx release film according to claim 9, characterized in that: said pulverizing roller (946) is provided with several tooth knives equidistantly from front to back, adjacent The spacing between the tooth cutters is equal to the width of the tooth cutters, and the two adjacent crushing rollers (946) are installed in opposite directions and inserted into each other.

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