CN219006999U

CN219006999U - TPU film multilayer coextrusion blow molding device

Info

Publication number: CN219006999U
Application number: CN202223483371.9U
Authority: CN
Inventors: 李振林; 杨美名; 杨强
Original assignee: Kunming Red Apple Plastic Cement New Material Co ltd
Current assignee: Kunming Red Apple Plastic Cement New Material Co ltd
Priority date: 2022-12-24
Filing date: 2022-12-24
Publication date: 2023-05-12
Anticipated expiration: 2032-12-24

Abstract

The utility model relates to a TPU membrane multilayer coextrusion blowing device, it includes the workstation, is provided with a plurality of ejection of compact barrels that are used for placing TPU material on the workstation, all communicates the discharging pipe on a plurality of ejection of compact barrels, is provided with on the workstation and is used for melting the coextrusion mechanism of discharging the TPU material in the discharging pipe, is provided with on the workstation and is used for the blow molding mechanism of TPU material blow molding; the side wall of the workbench is provided with a first die frame and a second die frame in a sliding manner, and the workbench is provided with a driving assembly for driving the first die frame and the second die frame to slide; the first die frame and the second die frame are respectively provided with a placing groove, the first die frame is provided with a containing groove communicated with the placing groove, a sliding block is arranged in the containing groove in a sliding manner, and a driving piece for driving the sliding block to slide is arranged in the containing groove; the workbench is provided with a conveying assembly for conveying the redundant TPU waste away from the workbench. The application has the effect of being convenient for later stage collection handles unnecessary TPU waste material.

Description

TPU film multilayer coextrusion blow molding device

Technical Field

The application relates to the technical field of TPU film manufacturing, in particular to a TPU film multilayer coextrusion blow molding device.

Background

TPU has excellent characteristics of high tension, toughness and aging resistance, and is a mature environment-friendly material. At present, TPU is widely applied to the aspects of medical treatment and health, electronic appliances, industry, sports and the like, has the characteristics of high strength, good toughness, wear resistance, cold resistance, oil resistance, water resistance, ageing resistance, weather resistance and the like which are incomparable with other plastic materials, and has a plurality of excellent functions of high water resistance and moisture permeability, wind resistance, cold resistance, antibiosis, mildew resistance, warmth retention, ultraviolet resistance, energy release and the like; the TPU is typically processed into other suitable forms by a blow molding machine.

Currently, blow molding machines generally comprise a fixed frame, and a heating device and a blow molding device arranged on the fixed frame; in the case of blowing TPU films, the TPU pellets are usually placed in a blowing machine, the particulate form of the TPU is melted to a fluid form by a heating device, and the fluid TPU material is then blow molded by a blow molding device.

However, during the blow molding process of TPU materials, excess TPU waste on the blow mold often falls into the production line or is scattered around in the construction site along with the molded materials, resulting in mess in the environment in the construction site, and inconvenience in subsequent collection and treatment.

Disclosure of Invention

In order to facilitate the post-collection treatment of the excess TPU waste, the present application provides a TPU film multilayer coextrusion blow molding apparatus.

The application provides a TPU membrane multilayer coextrusion blowing device adopts following technical scheme:

the TPU material blow molding machine comprises a workbench, wherein a plurality of discharging barrels used for placing TPU materials are arranged on the workbench, discharging pipes are communicated with the plurality of discharging barrels, a coextrusion mechanism used for fusing and discharging the TPU materials in the plurality of discharging pipes is arranged on the workbench, and a blow molding mechanism used for blow molding the TPU materials is arranged on the workbench; a first die frame and a second die frame are arranged on the side wall of the workbench in a sliding manner along the direction approaching or separating from each other, the first die frame is used for being abutted with the second die frame, and a driving assembly for driving the first die frame and the second die frame to slide is arranged on the workbench; the first die frame and the second die frame are respectively provided with a placing groove, the placing grooves are used for guiding TPU materials into the first die frame or the second die frame, the first die frame is provided with a containing groove communicated with the placing grooves, the containing groove is used for containing redundant TPU waste materials, a sliding block is arranged in the containing groove in a sliding manner along the direction close to or far from the first die frame, and a driving piece for driving the sliding block to slide is arranged in the containing groove; the workbench is provided with a conveying assembly for conveying the redundant TPU waste away from the workbench.

By adopting the technical scheme, when the TPU film is blow-molded, constructors respectively place a plurality of different TPU materials into a plurality of discharging cylinders, and guide the TPU materials into the co-extrusion mechanism through a plurality of discharging pipes; then, driving the first die frame and the second die frame to slide along the direction close to each other through the driving assembly, and driving the first die frame and the second die frame to abut against each other, so that a molding space of a die of the TPU material is formed, guiding the TPU material into the molding space through the co-extrusion mechanism, carrying out blow molding on the TPU material through the blow molding mechanism, and extruding redundant TPU waste into the accommodating groove; after the TPU grinding tool is molded and formed, driving the first die frame and the second die frame to slide along the direction away from each other through the driving component, when the first die frame slides to the position where the conveying component is located, driving the sliding block to push the redundant TPU waste to the conveying component through the driving component, and finally conveying the redundant TPU waste away from the workbench through the conveying component; therefore, the redundant TPU waste materials can not fall into a production line or scatter around in a construction site together with the formed materials, and the later collection and treatment of the redundant TPU waste materials are convenient to a certain extent.

Optionally, the drive assembly includes two-way screw rod and first actuating source, fixedly on first mould frame and the second mould frame respectively be provided with first slider and second slider, two-way screw rod rotates and sets up on the workstation, first screw hole and second screw hole have been seted up respectively along the length direction of two-way screw rod on first slider and the second slider, first screw hole and first slider threaded connection are worn to locate by the one end of two-way screw rod, second screw hole and second slider threaded connection are worn to locate by the other end of two-way screw rod, first actuating source is used for driving two-way screw rod rotation.

Through adopting above-mentioned technical scheme, drive bi-directional screw through first actuating source and rotate, because first slider and second slider all with bi-directional screw threaded connection, drive first slider and second slider and be close to each other or keep away from when the bi-directional screw rotates to drive first mould frame and second mould frame and slide along the direction that is close to each other or keep away from each other.

Optionally, the driving piece comprises a spring, one end of the spring is fixedly arranged on the side wall of the sliding block, the other end of the spring is fixedly arranged on the bottom wall of the accommodating groove, and the spring is used for driving the sliding block to slide along the direction away from the first die frame; and a pulling piece for driving the spring to compress is arranged in the placing groove.

By adopting the technical scheme, when the TPU material is in blow molding, the pulling piece drives the spring to keep a compressed state, so that redundant TPU waste is placed in the accommodating groove; when the first die frame slides to the position where the transport assembly is located, the spring is loosened through the pulling piece, the sliding block is driven to slide along the direction away from the first die frame, and accordingly the pushing plate is driven to push the redundant TPU waste out of the accommodating groove.

Optionally, the pulling piece includes the stay cord, the through-hole with the holding groove intercommunication has been seted up to the lateral wall of first mould frame, fixedly on the workstation be provided with place the piece, the fixed setting of one end of stay cord is on placing the piece, the other end of stay cord wears to locate in the through-hole and slip piece fixed connection.

By adopting the technical scheme, as one end of the stay rope is fixedly arranged on the placement block, when the first die frame slides towards the direction close to the second die frame, namely the first die frame slides towards the direction gradually far away from the placement block, the stay rope drives the sliding block to slide towards the direction close to the first die frame, so that the spring is kept in a compressed state; when the first die frame slides towards the direction gradually approaching to the placement block, the pull rope is in a loosening state, so that the sliding block slides towards the direction far away from the first die frame under the action of the spring.

Optionally, one end of the sliding block far away from the spring is fixedly provided with a rubber pad.

Through adopting above-mentioned technical scheme, through the setting of rubber pad, prevent unnecessary TPU waste material adhesion on the sliding block to a certain extent.

Optionally, the first mold frame and the second mold frame are both provided with a condensing part for cooling the TPU material

Through adopting above-mentioned technical scheme, through the setting of condensation piece, the cooling rate of TPU material has been accelerated to a certain extent.

Optionally, two side walls of the placing groove are close to each other along the direction gradually approaching to the mounting frame.

Through adopting above-mentioned technical scheme, through the setting that the both sides wall of standing groove is along being close to the direction of mounting bracket each other that is close to gradually, make the blowing device fast with the butt joint of TPU material to a certain extent.

Optionally, the transportation subassembly includes first belt pulley, second belt pulley, conveyer and second drive source, the lateral wall of workstation is fixed to be provided with the mounting bracket, first belt pulley and second belt pulley rotate respectively and set up the both ends at the mounting bracket, the axial of first belt pulley and second belt pulley is parallel, conveyer is around establishing on first belt pulley and second belt pulley, the second drive source is used for driving first belt pulley rotation.

Through adopting above-mentioned technical scheme, drive first belt pulley rotation through the second drive source, when first belt pulley pivoted, drive around the conveyer belt who establishes at first belt pulley and slide to drive the second belt pulley and rotate, thereby drive the orderly fortune of unnecessary TPU waste material on the conveyer belt and leave the workstation.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when the TPU film is blow-molded, a constructor respectively places a plurality of different TPU materials into a plurality of discharging cylinders, and the TPU materials are guided into the co-extrusion mechanism through a plurality of discharging pipes; then, driving the first die frame and the second die frame to slide along the direction close to each other through the driving assembly, and driving the first die frame and the second die frame to abut against each other, so that a molding space of a die of the TPU material is formed, guiding the TPU material into the molding space through the co-extrusion mechanism, carrying out blow molding on the TPU material through the blow molding mechanism, and extruding redundant TPU waste into the accommodating groove; after the TPU grinding tool is molded and formed, driving the first die frame and the second die frame to slide along the direction away from each other through the driving component, when the first die frame slides to the position where the conveying component is located, driving the sliding block to push the redundant TPU waste to the conveying component through the driving component, and finally conveying the redundant TPU waste away from the workbench through the conveying component; the redundant TPU waste materials can not fall into a production line or scatter around in a construction site together with the formed materials, so that the redundant TPU waste materials can be collected and treated at a later stage to a certain extent;

2. when the TPU material is in blow molding, the pulling piece drives the spring to keep a compressed state, so that redundant TPU waste materials are placed in the accommodating groove; when the first die frame slides to the position where the transport assembly is located, the spring is loosened through the pulling piece, and the sliding block is driven to slide along the direction away from the first die frame, so that the pushing plate is driven to push the redundant TPU waste out of the accommodating groove;

3. because one end of the pull rope is fixedly arranged on the placement block, when the first die frame slides towards the direction close to the second die frame, namely the first die frame slides towards the direction gradually far away from the placement block, the pull rope drives the sliding block to slide towards the direction close to the first die frame, so that the spring is kept in a compressed state; when the first die frame slides towards the direction gradually approaching to the placement block, the pull rope is in a loosening state, so that the sliding block slides towards the direction far away from the first die frame under the action of the spring.

Drawings

FIG. 1 is a schematic overall structure of an embodiment of the present application;

FIG. 2 is a schematic view of a portion of the structure of an embodiment of the present application, mainly for illustrating the structure of a first mold frame and a second mold frame;

fig. 3 is a partial structural sectional view of the embodiment of the present application, mainly for illustrating a structure in the accommodating groove.

Reference numerals illustrate: 1. a work table; 11. a discharging cylinder; 12. a discharge pipe; 13. a co-extrusion mechanism; 14. a blow molding mechanism; 15. placing a block; 2. a transport assembly; 21. a mounting frame; 22. a conveyor belt; 23. a driving motor; 3. a first mold frame; 31. a second mold frame; 32. a first slider; 33. a second slider; 34. a bidirectional screw; 341. a support block; 35. a servo motor; 36. a placement groove; 37. a condensing member; 4. a receiving groove; 41. a sliding block; 411. a rubber pad; 42. a spring; 43. a through hole; 44. and (5) pulling the rope.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-3.

The embodiment of the application discloses a TPU film multilayer coextrusion blow molding device. Referring to fig. 1, the hot melt extrusion machine comprises a workbench 1, wherein a plurality of discharging barrels 11 for placing TPU materials are arranged on the workbench 1, discharging pipes 12 are communicated with the plurality of discharging barrels 11, a co-extrusion mechanism 13 for fusing and discharging the TPU materials in the plurality of discharging pipes 12 is arranged on the workbench 1, and a blow molding mechanism 14 for blow molding the TPU materials is arranged on the workbench 1; in this embodiment, the co-extrusion mechanism 13 and the blow molding mechanism 14 are both provided as corresponding mechanisms on a TED-200 blow molding machine.

Referring to fig. 1 and 2, a transport assembly 2 for transporting the excess TPU waste away from the workbench 1 is arranged on the workbench 1, the transport assembly 2 comprises a first belt pulley, a second belt pulley, a conveying belt 22 and a second driving source, a mounting frame 21 is fixedly arranged on the side wall of the workbench 1, the first belt pulley and the second belt pulley are respectively arranged at two ends of the mounting frame 21 in a rotating mode, the first belt pulley is arranged at one end, close to the workbench 1, of the mounting frame 21, the first belt pulley and the second belt pulley are axially parallel, the conveying belt 22 is wound on the first belt pulley and the second belt pulley, the conveying belt 22 is slidably arranged on the mounting frame 21, the conveying belt 22 is used for being abutted to the excess TPU waste, the second driving source is used for driving the first belt pulley to rotate, the second driving source comprises a driving motor 23, the driving motor 23 is fixedly arranged on the mounting frame 21, and an output shaft of the driving motor 23 is fixedly connected with the first belt pulley in a coaxial mode.

Referring to fig. 1 and 2, a first mold frame 3 and a second mold frame 31 are slidably arranged on the side wall of the workbench 1 along the direction approaching or separating from each other, the first mold frame 3 and the second mold frame 31 are both slidably arranged along the direction perpendicular to the side wall of the workbench 1, the first mold frame 3 is used for being abutted against the second mold frame 31, an inserting block is fixedly arranged on the second mold frame 31, and a slot for inserting the inserting block is formed in the first mold frame 3; when the insert block of the second mold frame 31 is inserted into the insert groove of the first mold frame 3, a molding space is formed between the first mold frame 3 and the second mold frame 31.

Referring to fig. 1 and 2, a driving assembly for driving the first mold frame 3 and the second mold frame 31 to slide is provided on the table 1; the workbench 1 is fixedly provided with a supporting block 341, the driving assembly comprises a bidirectional screw rod 34 and a first driving source, the first die frame 3 and the second die frame 31 are respectively fixedly provided with a first sliding block 32 and a second sliding block 33, the first sliding block 32 is matched with the second sliding block 33 in size and position, the bidirectional screw rod 34 is rotatably arranged on the workbench 1, the bidirectional screw rod 34 is horizontally arranged on the workbench 1, the first sliding block 32 and the second sliding block 33 are respectively provided with a first threaded hole and a second threaded hole along the length direction of the bidirectional screw rod 34, the first threaded holes and the second threaded holes are matched with the bidirectional screw rod 34, one end of the bidirectional screw rod 34 is arranged in the first threaded holes in a penetrating mode and is in threaded connection with the first sliding block 32, the other end of the bidirectional screw rod 34 is arranged in the second threaded hole in a penetrating mode and is in threaded connection with the second sliding block 33, the first driving source is used for driving the bidirectional screw rod 34 to rotate, the first driving source comprises a servo motor 35, the servo motor 35 is fixedly arranged on the supporting block 341, and an output shaft of the servo motor 35 is fixedly connected with the bidirectional screw rod 34 in a coaxial mode.

Referring to fig. 2 and 3, the side walls of the first mold frame 3 and the second mold frame 31 are provided with a placing groove 36, the placing groove 36 is communicated with a molding space formed between the first mold frame 3 and the second mold frame 31, the placing groove 36 is used for guiding TPU material into the molding space, and two side walls of the placing groove 36 are mutually close along the direction gradually approaching to the mounting frame 21; the first mold frame 3 and the second mold frame 31 are each provided with a condensation piece 37 for cooling the TPU material, the condensation piece 37 comprising condensation PC pipes which are distributed around the inside of the first mold frame 3 or the second mold frame 31.

Referring to fig. 2 and 3, a containing groove 4 communicated with a containing groove 36 is formed in the first mold frame 3, the containing groove 4 is used for containing redundant TPU waste, and a sliding block 41 is slidably arranged in the containing groove 4 along a direction perpendicular to the side wall of the workbench 1; the driving piece for driving the sliding block 41 to slide is arranged in the accommodating groove 4 and comprises a spring 42, the spring 42 is arranged as a pressure spring, one end of the spring 42 is fixedly arranged on the side wall of the sliding block 41, the other end of the spring 42 is fixedly arranged on the bottom wall of the accommodating groove 4, the spring 42 is used for driving the sliding block 41 to slide along the direction away from the first die frame 3, one end, away from the spring 42, of the sliding block 41 is fixedly provided with a rubber pad 411, and the rubber pad 411 is used for being abutted with redundant TPU waste materials.

Referring to fig. 2 and 3, a pulling member for driving the spring 42 to compress is arranged in the placing groove 36, the pulling member comprises a pull rope 44, the pull rope 44 is arranged as a reinforcing steel bar rope, a through hole 43 communicated with the accommodating groove 4 is formed in the outer side wall of the first mold frame 3, the pull rope 44 is slidably arranged in the through hole 43, a placing block 15 is fixedly arranged on the side wall of the workbench 1, one end of the pull rope 44 is fixedly arranged on the placing block 15, and the other end of the pull rope 44 is penetrated in the through hole 43 and fixedly connected with the sliding block 41; when the first mold frame 3 is slid in a direction away from the second mold frame 31, the pulling cord 44 is in a relaxed state, so that the pressure of the spring 42 against the slider 41 is not affected.

The implementation principle of the TPU film multilayer coextrusion blow molding device in the embodiment of the application is as follows: when the TPU film is blow molded, a constructor respectively places a plurality of different TPU materials into a plurality of discharging cylinders 11, and the TPU materials are guided into a co-extrusion mechanism 13 through a plurality of discharging pipes 12; after that, the two-way screw 34 is driven to rotate by the servo motor 35, and the first sliding block 32 and the second sliding block 33 are in threaded connection with the two-way screw 34, so that the two-way screw 34 rotates and drives the first sliding block 32 and the second sliding block 33 to be close to each other, and accordingly the first die frame 3 and the second die frame 31 are driven to slide along the direction close to each other, a molding space of a die of the TPU material is formed, the TPU material is guided into the molding space by the co-extrusion mechanism 13, the TPU material is blow molded by the blow molding mechanism 14, and redundant TPU waste is extruded into the accommodating groove 4.

After the TPU grinding tool is molded and formed, the two-way screw 34 is driven to rotate through the servo motor 35, as the first sliding block 32 and the second sliding block 33 are in threaded connection with the two-way screw 34, the two-way screw 34 drives the first sliding block 32 and the second sliding block 33 to be far away from each other while rotating, so that the first mold frame 3 and the second mold frame 31 are driven to slide along the direction far away from each other, when the first mold frame 3 slides to the position of the conveyor belt 22, the spring 42 drives the sliding block 41 to push excessive TPU waste to the conveyor belt 22, and finally the driving motor 23 drives the first belt pulley to rotate, and drives the conveyor belt 22 wound on the first belt pulley to slide while the first belt pulley rotates, so that the second belt pulley is driven to rotate, and redundant TPU material on the conveyor belt is driven to orderly move away from the workbench 1; therefore, the redundant TPU waste materials can not fall into a production line or scatter around in a construction site together with the formed materials, and the later collection and treatment of the redundant TPU waste materials are convenient to a certain extent.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims

1. A TPU film multilayer coextrusion blow molding apparatus characterized by: the TPU material blow molding machine comprises a workbench (1), wherein a plurality of discharging barrels (11) for placing TPU materials are arranged on the workbench (1), discharging pipes (12) are communicated with the plurality of discharging barrels (11), a coextrusion mechanism (13) for fusing and discharging the TPU materials in the plurality of discharging pipes (12) is arranged on the workbench (1), and a blow molding mechanism (14) for blow molding the TPU materials is arranged on the workbench (1); a first die frame (3) and a second die frame (31) are arranged on the side wall of the workbench (1) in a sliding manner along the direction approaching or separating from each other, the first die frame (3) is used for being abutted with the second die frame (31), and a driving assembly for driving the first die frame (3) and the second die frame (31) to slide is arranged on the workbench (1); the novel TPU plastic molding machine is characterized in that the first mold frame (3) and the second mold frame (31) are respectively provided with a placing groove (36), the placing grooves (36) are used for guiding TPU materials into the first mold frame (3) or the second mold frame (31), the first mold frame (3) is provided with a containing groove (4) communicated with the placing grooves (36), the containing groove (4) is used for containing redundant TPU waste materials, the containing groove (4) is internally provided with a sliding block (41) in a sliding manner along the direction close to or far away from the first mold frame (3), and the containing groove (4) is internally provided with a driving piece for driving the sliding block (41) to slide; the workbench (1) is provided with a conveying assembly (2) for conveying redundant TPU waste away from the workbench (1).

2. A TPU film multilayer coextrusion blow molding apparatus according to claim 1, wherein: the driving assembly comprises a bidirectional screw (34) and a first driving source, a first sliding block (32) and a second sliding block (33) are fixedly arranged on the first die frame (3) and the second die frame (31) respectively, the bidirectional screw (34) is rotationally arranged on the workbench (1), a first threaded hole and a second threaded hole are respectively formed in the first sliding block (32) and the second sliding block (33) along the length direction of the bidirectional screw (34), one end of the bidirectional screw (34) is penetrated into the first threaded hole and is in threaded connection with the first sliding block (32), the other end of the bidirectional screw (34) is penetrated into the second threaded hole and is in threaded connection with the second sliding block (33), and the first driving source is used for driving the bidirectional screw (34) to rotate.

3. A TPU film multilayer coextrusion blow molding apparatus according to claim 2, wherein: the driving piece comprises a spring (42), one end of the spring (42) is fixedly arranged on the side wall of the sliding block (41), the other end of the spring (42) is fixedly arranged on the bottom wall of the accommodating groove (4), and the spring (42) is used for driving the sliding block (41) to slide along the direction away from the first die frame (3); a pulling member is provided in the placement groove (36) to urge compression of the spring (42).

4. A TPU film multilayer coextrusion blow molding apparatus according to claim 3, wherein: the pulling piece comprises a pulling rope (44), a through hole (43) communicated with the accommodating groove (4) is formed in the outer side wall of the first die frame (3), a placing block (15) is fixedly arranged on the workbench (1), one end of the pulling rope (44) is fixedly arranged on the placing block (15), and the other end of the pulling rope (44) penetrates through the through hole (43) and is fixedly connected with the sliding block (41).

5. A TPU film multilayer coextrusion blow molding apparatus according to claim 4, wherein: one end of the sliding block (41) far away from the spring (42) is fixedly provided with a rubber pad (411).

6. A TPU film multilayer coextrusion blow molding apparatus according to claim 5, wherein: the first mold frame (3) and the second mold frame (31) are each provided with a condensation piece (37) for cooling the TPU material.

7. A TPU film multilayer coextrusion blow molding apparatus according to claim 1, wherein: the two side walls of the placing groove (36) are close to each other along the direction gradually approaching the mounting frame (21).

8. A TPU film multilayer coextrusion blow molding apparatus according to claim 1, wherein: the conveying assembly (2) comprises a first belt pulley, a second belt pulley, a conveying belt (22) and a second driving source, a mounting frame (21) is fixedly arranged on the side wall of the workbench (1), the first belt pulley and the second belt pulley are respectively arranged at two ends of the mounting frame (21) in a rotating mode, the axial directions of the first belt pulley and the second belt pulley are parallel, the conveying belt (22) is wound on the first belt pulley and the second belt pulley, and the second driving source is used for driving the first belt pulley to rotate.