CN221022233U

CN221022233U - Extrusion molding device

Info

Publication number: CN221022233U
Application number: CN202322542043.XU
Authority: CN
Inventors: 何苑辉
Original assignee: Shenzhen Jinhuanyu Wire Cable Co ltd
Current assignee: Shenzhen Jinhuanyu Wire Cable Co ltd
Priority date: 2023-09-19
Filing date: 2023-09-19
Publication date: 2024-05-28
Anticipated expiration: 2033-09-19

Abstract

The utility model discloses an extrusion molding device, which comprises: the machine head comprises a screw barrel, a machine head connecting piece and a clamping device which is assembled on the outer side of the machine head connecting piece and used for fastening the machine head connecting piece, wherein the screw barrel is of a hollow cylindrical structure and is provided with a screw; the clamp is driven by a clamp driving mechanism; the gripper driving mechanism includes: the driving chain wheel assembly comprises two groups of chain wheel assemblies; the clamp comprises a first sub-clamp and a second sub-clamp; screw holes are formed at both ends of the first sub-clamp and both ends of the second sub-clamp; the first driving screw rod penetrates through the first sub-clamp and the second sub-clamp and is positioned in a screw hole at one end; the second driving screw rod penetrates through the first sub-clamp and the screw hole of the second sub-clamp, and the two clamps are driven positively and negatively on the two driving screw rods to open and close the two clamps. Thereby achieving the purpose of tightening and disassembling the machine head and the machine head connecting piece.

Description

Extrusion molding device

Technical Field

The utility model relates to the field of mechanical manufacturing, in particular to an extrusion molding device.

Background

Along with the rapid development of manufacturing industry, equipment for extrusion molding is widely applied to plastic production and plastic product production lines, manufacturers gradually attach importance to the reliability of extrusion molding equipment in the extrusion molding process, because the existing extrusion molding equipment is slower in extrusion molding process, the existing extrusion molding machine is generally provided with a machine head connecting piece, the original machine head and a screw barrel are connected in a flange mode, 12 bolts are uniformly distributed on the flange and used for fixed connection, the working efficiency is lower, the dismounting time is longer, the machine head and the screw barrel cannot be quickly dismounted, the plastic in the screw barrel is burnt in the process of equipment operation, a series of accidents such as plastic insulation edge or sheath damage are caused, the industrial preparation efficiency of plastic products is seriously influenced, the problem of lower coating efficiency exists in the use process of the existing charger coating die in the current market, and the problem of poor extrusion molding stability exists in the use process of the clamp in the prior art.

Disclosure of utility model

The embodiment of the utility model provides an extrusion molding device, which aims to solve the problem of poor extrusion molding stability of a clamp in the prior art in the use process.

The utility model provides an extrusion molding device, wherein the extrusion molding device comprises: the screw barrel is of a hollow cylindrical structure, and a screw rod is assembled in the screw barrel.

The gripper is driven by a gripper driving mechanism.

The gripper driving mechanism includes: the driving chain wheel assembly and the driving screw rod connected with the driving chain wheel assembly in a transmission mode, the driving screw rod comprises a first driving screw rod and a second driving screw rod, and the driving chain wheel assembly comprises two groups of chain wheel assemblies.

The clamp comprises a first sub-clamp and a second sub-clamp; screw holes are formed in the two ends of the first sub-clamp and the two ends of the second sub-clamp; the first driving screw rod penetrates through the first sub-clamp and the second sub-clamp at the same time and is positioned in a screw hole at one end; the second driving screw rod penetrates through the first sub-clamp and the second sub-clamp at the same time and is positioned in a screw hole at the other end.

And connecting columns are arranged at the two ends of the first driving screw rod and the two ends of the second driving screw rod.

The connecting column of one side of the first driving screw rod and the second driving screw rod is in transmission connection through a group of chain wheel assemblies; the first driving screw rod and the connecting column positioned on the other side of the second driving screw rod are in transmission connection through another group of chain wheel assemblies, so that the machine head and the machine head connecting piece arranged on the extrusion molding device are clamped and disassembled.

The inside of aircraft nose is provided with a cavity, one side of cavity is connected with a first perforation, the aircraft nose with the one side that first perforation is adjacent still is provided with the second perforation.

The end, connected with the machine head, of the machine head connecting piece forms a horn-shaped opening, the opening diameter of the horn-shaped opening towards one end of the machine head is larger than the opening diameter of one end far away from the machine head, the end with the larger opening diameter is a fourth perforation, and the end with the smaller opening diameter is a third perforation; the third perforation is communicated with the second perforation, and the outer side edge of the fourth perforation is connected with the outer side wall of the screw cylinder.

The clamp wraps the machine head connecting piece and is arranged on the outer side of the machine head, and the clamp is used for fastening the machine head and the machine head connecting piece.

An extrusion device, wherein the screw is of a cylindrical structure, and a spiral flange is arranged around the periphery of the cylindrical structure.

An extrusion molding device, wherein the inner wall of the screw cylinder is provided with a plurality of threads with a spiral structure.

An extrusion molding device, wherein each group of chain wheel components comprises a chain and two chain wheels, the two chain wheels of the same group of chain wheel components are synchronously driven through a corresponding chain, and the chain is sleeved on the two chain wheels.

An extrusion molding device, wherein, the screw barrel is towards the edge of the opening part of aircraft nose one side is provided with the mounting, the mounting is including the cross section for first mounting and the second mounting that slope set up, first mounting is the flange of annular structure, just the flange orientation the one side of screw barrel outwards extends.

An extrusion molding device, wherein the cavity of the screw barrel is positioned on the same axis with the third perforation, the second perforation and the fourth perforation.

An extrusion molding device, wherein the first sub-clamp and the second sub-clamp are inwards sunken to form a clamp cavity, and the machine head connecting piece and the machine head are wrapped and arranged in the clamp cavity.

An extrusion molding device, wherein the outer side edges of the first driving screw rod and the second driving screw rod are provided with spiral threads, the spiral threads comprise first threads and second threads, and the spiral directions of the first threads and the second threads are opposite.

The extrusion molding device comprises a machine head connecting piece, a first fixing piece, a second fixing piece and a screw barrel, wherein the first fixing piece is arranged on the outer side edge of the machine head connecting piece, the second fixing piece is a flange of an annular structure, and one side of the flange, which is away from the screw barrel, is inwards recessed.

An extrusion molding device, wherein a motor is connected to the screw, and the motor drives the screw to directionally move along the inner wall of the screw cylinder towards one end of the machine head.

Compared with the prior art, the utility model has the following advantages:

An embodiment of the present utility model provides an extrusion apparatus including: the machine head comprises a screw barrel, a machine head connecting piece and a clamping device which is assembled on the outer side of the machine head connecting piece and used for fastening the machine head connecting piece, wherein the screw barrel is of a hollow cylindrical structure and is provided with a screw; the clamp is driven by a clamp driving mechanism; the gripper driving mechanism includes: the driving chain wheel assembly comprises two groups of chain wheel assemblies; the clamp comprises a first sub-clamp and a second sub-clamp; screw holes are formed at both ends of the first sub-clamp and both ends of the second sub-clamp; the first driving screw rod penetrates through the first sub-clamp and the second sub-clamp and is positioned in a screw hole at one end; the second driving screw rod penetrates through the first sub-clamp and the screw hole of the second sub-clamp, and the two clamps are driven positively and negatively on the two driving screw rods to open and close the two clamps. Thereby achieving the purpose of tightening and disassembling the machine head and the machine head connecting piece.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a block diagram of an overall configuration for an extrusion apparatus according to an embodiment of the present utility model;

FIG. 2 is a schematic view of a part of an extrusion apparatus according to an embodiment of the present utility model;

FIG. 3 is a schematic view of a screw barrel for an extrusion device according to an embodiment of the present utility model;

FIG. 4 is a schematic view of the overall structure of a handpiece and a handpiece attachment for an extrusion apparatus according to an embodiment of the present utility model;

FIG. 5 is a schematic view of the overall structure of a connecting rod for an extrusion device according to an embodiment of the present utility model;

FIG. 6 is a schematic view of a drive sprocket assembly for an extrusion apparatus arrangement according to an embodiment of the present utility model;

Fig. 7 is a schematic view of a gripper driving mechanism of an extrusion molding apparatus according to an embodiment of the present utility model.

The machine head 1, the fixing piece 2, the machine head connecting piece 3, the screw cylinder 4, the screw 5, the first perforation 6, the second perforation 7, the third perforation 8, the fourth perforation 9, the first fixing piece 11, the second fixing piece 12, the first sub-clamp 13, the second sub-clamp 14, the clamp 15, the motor 16, the driving screw 17, the clamp driving mechanism 18, the first thread 19, the second thread 20, the fixing block 21, the chain 22, the first driving screw 23, the second driving screw 24, the connecting post 25, the driving sprocket assembly 26, the sprocket assembly 27 and the sprocket 28.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be understood that the terms "comprises" and "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

It is also to be understood that the terminology used in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be further understood that the term "and/or" as used in the present specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.

Referring to fig. 1, 2, 3, 5, 6 and 7, as shown, an extrusion apparatus according to an embodiment of the present utility model includes: the screw barrel 4, the machine head 1, the machine head connecting piece 3 and the clamp which is assembled on the outer side of the machine head connecting piece 3 and used for fastening the machine head connecting piece 3 are of a hollow cylindrical structure, a cavity is formed in the screw barrel 4 in a hollow mode, and a screw 5 is assembled in the screw barrel 4. The gripper 15 as a whole is driven by a gripper driving mechanism 18. The gripper driving mechanism 18 includes: the driving chain wheel assembly 26 and the driving screw rod 17 in transmission connection with the driving chain wheel assembly 26, wherein the driving screw rod 17 comprises a first driving screw rod 23 and a second driving screw rod 24, and the driving chain wheel assembly 26 comprises two groups of chain wheel assemblies 27. The clamp 15 comprises a first sub-clamp 13 and a second sub-clamp 14; screw holes (not shown) are formed at both ends of the first sub-clamp 13 and both ends of the second sub-clamp 14. The first driving screw rod 23 penetrates through the screw holes of the first sub-clamp 13 and the second sub-clamp 14 at one end at the same time; the second driving screw 24 penetrates through the first sub-clamp 13 and the first sub-clamp 14 at the same time, and is positioned in a screw hole at the other end. The two ends of the first driving screw rod 23 and the two ends of the second driving screw rod 24 are respectively provided with a connecting column 25. The connecting column 25 on one side of the first driving screw 23 and the second driving screw 24 is in transmission connection through a group of chain wheel assemblies 27; the connecting columns of the first driving screw rod 23 and the second driving screw rod 24 on the other side are in transmission connection through another group of chain wheel assemblies 27, so that the machine head 1 and the machine head connecting piece 3 arranged on the extrusion molding device are clamped and disassembled. The inside of aircraft nose 1 is provided with a cavity, one side of cavity is connected with a first perforation 6, aircraft nose 1 with the one side that first perforation 6 is adjacent still is provided with second perforation 7. The end, connected with the machine head 1, of the machine head connecting piece 3 forms a horn-shaped opening, the diameter of the opening of the horn-shaped opening towards one end of the machine head 1 is larger than that of the opening of the end far away from the machine head 1, the end with the larger opening diameter is a fourth perforation 9, and the end with the smaller opening diameter is a third perforation 8; the third through hole 8 is communicated with the second through hole 7, and the outer side edge of the fourth through hole 9 is connected with the outer side wall of the screw cylinder 4. The outer side edge of the handpiece connector 3 is also fixedly connected with a clamp 15, and the clamp 15 is used for fastening the handpiece 1 and the handpiece connector 3.

Specifically, in this embodiment, the extrusion molding device includes: the screw barrel 4, the machine head 1, the machine head connecting piece 3 and the clamp which is assembled on the outer side of the machine head connecting piece 3 and used for fastening the machine head connecting piece 3 are of a hollow cylindrical structure, a cavity is formed in the screw barrel 4 in a hollow mode, and a screw 5 is assembled in the screw barrel 4. The gripper 15 is driven by a gripper driving mechanism 18; the gripper driving mechanism 18 includes: the driving chain wheel assembly 26 and the driving screw rod 17 in transmission connection with the driving chain wheel assembly 26, wherein the driving screw rod 17 comprises a first driving screw rod 23 and a second driving screw rod 24, and the driving chain wheel assembly 26 comprises two groups of chain wheel assemblies 27. The clamp 15 comprises a first sub-clamp 13 and a first sub-clamp 14; screw holes (not shown) are formed at both ends of the first sub-clamp 13 and both ends of the first sub-clamp 14; the first driving screw rod 23 penetrates through the first sub-clamp 13 and the first sub-clamp 14 at the same time and is positioned in a screw hole at one end; the second driving screw rod 24 penetrates through the first sub-clamp 13 and the first sub-clamp 14 at the same time and is positioned in a screw hole at the other end; the two ends of the first driving screw rod 23 and the two ends of the second driving screw rod 24 are respectively provided with a connecting column 25; the connecting column 25 on one side of the first driving screw 23 and the second driving screw 24 is in transmission connection through a group of chain wheel assemblies 27; the connecting columns of the first driving screw rod 23 and the second driving screw rod 24 on the other side are in transmission connection through the other group of chain wheel assemblies 27, so that the machine head 1 and the machine head connecting piece 3 arranged on the extrusion molding device are fastened and detached; the first driving screw 23 rotates in a first direction and the second driving screw 24 rotates in a second direction to enable the first sub-clamp 13 and the first sub-clamp 14 to be close to each other and clamped, the first driving screw 23 rotates in a second direction and the second driving screw 24 rotates in the first direction to enable the first sub-clamp 13 and the first sub-clamp 14 to be far away from each other, and in this arrangement, two driving screws (the first driving screw 23 and the second driving screw 24) are driven to move in opposite directions through two groups of chain wheels of the driving chain wheel assembly 26, so that the first sub-clamp 13 and the first sub-clamp 14 are driven to be retracted, the fastening degree of the clamp (the first sub-clamp and the second sub-clamp) is controlled, and the overall extrusion stability of the device is further improved.

Specifically, in this embodiment, the screw cylinder 4 is a hollow cylinder structure, and the clamp 15 includes: the screw barrel 4, the machine head 1 and with the machine head connecting piece 3 that the machine head 1 is connected, just the inside of screw barrel 4 is equipped with a screw rod 5, the whole cylinder structure that is of screw barrel 4, just the screw barrel 4 is provided with the cavity, the inner wall of cavity with the outer wall of screw rod 5 contacts, the whole cuboid structure that is of machine head 1, the inside of machine head 1 is provided with a cavity, one side of cavity is connected with a first perforation 6, machine head 1 with the adjacent one side of first perforation 6 still is provided with the second perforation 7, and the machine head is used for extruding flexible thermoplastic towards first perforation 6, carries out fixed connection through screw barrel 4 connecting piece between the cavity of machine head and the screw barrel 4 to make two cavities intercommunicate, link up steadily between machine head connecting piece 3 and the screw barrel 4, this kind of setting mode has improved the holistic extrusion molding's of device efficiency, has further increased the holistic stability of extruding of device.

Specifically, in one embodiment, after the connection between the machine head connecting piece 3 and the screw barrel 4, an inclined connection surface is formed at the outer edge of the machine head connecting piece 3, the connection surface integrally comprises an inclined surface at the outer edge of the screw barrel 4 and an inclined surface at the outer edge of the machine head connecting piece 3, the two inclined surfaces are integrated into an integral structure, a clamp 15 is fixedly connected to the outer edge of the machine head connecting piece 3, the clamp 15 (the first sub-clamp 13 and the second sub-clamp 14) is used for fastening the machine barrel and the machine head connecting piece 3, the integral structure of the device forms the connection surface, and after connection, the machine head 1, the machine head connecting piece 3 and the screw barrel 4 form an integral design, so that the stability of integral extrusion molding of the device is further improved.

Specifically, a horn-shaped structure is formed on one side of the nose connecting piece 3, a smaller perforation in the horn-shaped structure is a third perforation 8, a larger perforation in the horn-shaped structure is a fourth perforation 9, the third perforation 8 is connected with the second perforation 7, and the outer side edge of the fourth perforation 9 is connected with the outer side wall of the screw cylinder 4; the cavity arranged on the screw cylinder 4 and the third perforation 8, the second perforation 7 and the fourth perforation 9 are all positioned on the same axis; the screw 5 is connected with a motor 16, the motor 16 drives the screw 5 to move directionally along the inner wall of the screw cylinder 4 towards one end of the machine head 1, and the motor 16 drives the screw 5 to compress directionally towards one side of the machine head, and after the machine head link piece and the screw cylinder 4 are assembled, the stability of integral extrusion molding of the device is improved.

Further, the gripper driving mechanism 18 includes: the driving chain wheel assembly 26 and with the driving screw 17 that driving chain wheel assembly 26 transmission is connected, driving screw 17 includes first driving screw 23 and second driving screw 24, driving chain wheel assembly 26 is provided with two chains 22, each chain 22 is driven by two sets of sprockets driving screw 17 carries out the transmission, each set of sprocket includes two sprocket assemblies 27 of relative setting, each the fixed block 21 that clamp 15 both ends set up is embedded in the fixed orifices (not shown in the drawing) of first driving screw 23 and second driving screw 24 respectively, just two linking posts 25 of first driving screw 23 are embedded in the perforation that sprocket 28 set up respectively, two linking posts 25 of second driving screw 24 are embedded in the perforation that sprocket 28 set up respectively, the width of linking post 25 is greater than the width between the sprocket 28. In this arrangement, the first sub-clamp and the second sub-clamp are synchronously driven by the two groups of chain wheel assemblies 27 to perform tightness adjustment, so that loosening of the machine head and the screw cylinder is difficult to occur in the processing process, and the stability of extrusion molding of the device is improved.

Referring to fig. 1 and 3, as shown, the screw 5 is of a cylindrical structure, and a spiral flange (not shown) is disposed around the periphery of the cylindrical structure.

Specifically, the periphery of cylindrical structure is provided with the heliciform flange, and every flange all encircles and sets up in the surface of screw rod 5, and the outward flange of flange with the inner wall of screw tube 4 contacts, in one embodiment, one side that screw rod 5 deviates from the aircraft nose is provided with a driving motor 16, because the screw thread of heliciform flange and the upper groove structure's of screw tube 4 screw thread mutually agree with, driving motor 16 drives screw rod 5 to carry out directional removal towards one side of aircraft nose, thereby carry out directional extrusion to the high temperature plastic in the screw tube 4, in carrying out extrusion molding processing, carry out extrusion molding with the high temperature plastic, thereby further improved the holistic machining efficiency of plastic, the problem that the extrusion molding can't be carried out in the extrusion molding process appears in the reduction device.

Referring to fig. 1 and 3, as shown in the drawings, the inner wall of the screw cylinder 4 is provided with a plurality of threads with a spiral structure.

Specifically, in one embodiment, the inner wall of the screw cylinder 4 is provided with a screw thread of a screw structure, a spiral flange on the outer side of the screw 5 extends into the screw thread of the screw structure, the screw depth of the screw structure is 0.5cm, and in the arrangement mode, when the screw 5 is driven by a driving motor 16 in a directional manner, the driving motor 16 drives the screw 5 to move in a directional manner towards one side of the machine head, so that high-temperature plastic in the screw cylinder 4 is extruded in a directional manner, and the high-temperature plastic is extruded in an extrusion molding process, so that the overall processing efficiency of the plastic is further improved, and the occurrence probability of unstable extrusion molding of the device in the extrusion molding process is reduced.

Referring to fig. 1 and 3, as shown in the drawings, each set of the sprocket assemblies 27 includes a chain 22 and two sprockets 28, and the two sprockets 28 of the same set of the sprocket assemblies 27 are synchronously driven by a corresponding chain 22, and the chain 22 is sleeved on the two sprockets 28.

Specifically, in this embodiment, the driving sprocket assembly 26 includes two sets of sprocket assemblies 27, each set of sprocket assemblies 27 includes a chain 22 and two sprockets 28, and the two sprockets 28 of the same set of sprocket assemblies 27 are synchronously driven by a corresponding chain 22, the two sprockets 28 are sleeved with the chain 22, and in this arrangement, the two driving screws (the first driving screw 23 and the second driving screw 24) in this scheme are directionally driven by the two sets of sprocket assemblies 27 to rotate, so that the first sub-clamp 13 and the second sub-clamp 14 on one side of the driving screw can be perfectly adjusted in tightness, and the tightness between the machine head and the screw is controlled, so that the machine head and the screw are not easy to loose in the processing process, and the stability of the integral extrusion molding of the device is improved.

Referring to fig. 1 and 2, as shown in the drawings, a fixing member 2 is disposed at an edge of the opening of the screw cylinder 4 facing one side of the machine head 1, the fixing member 2 includes a first fixing member 11 and a second fixing member 12, the first fixing member 11 is a flange with an annular structure, and the flange extends outwards facing one side of the screw cylinder 4.

Specifically, the edge of the opening part of one side of the screw barrel 4 towards the machine head is provided with a fixing piece, the fixing piece comprises a first fixing piece 11 and a second fixing piece 12, the whole first fixing piece 11 is an annular structure flange, the first fixing piece 11 is fixedly connected with the edge of the screw barrel 4, the first fixing piece 11 extends outwards towards the outer side edge of the screw barrel 4 to form a flange structure and is fixedly connected with one side of the machine head connecting piece 3, the screw barrel 4 and the machine head connecting piece 3 are fixedly connected through the two fixing pieces, the connecting area between the screw barrel 4 and the machine head connecting piece 3 is increased in the process of connecting the machine head and the screw barrel 4, so that the stability of the screw barrel 4 and the machine head is further improved, the phenomenon of extrusion molding failure can not occur in the extrusion molding process is guaranteed, the whole processing efficiency of plastic is further improved, and the problem that the device can not stably extrude in the extrusion molding process is solved.

Referring to fig. 1, 2 and 3, as shown in the drawings, the cavity of the screw 4 is located on the same axis as the third through hole 8, the second through hole 7 and the fourth through hole 9.

Specifically, the cavity that the screw barrel 4 set up with the second is perforated 7, third is perforated 8 and fourth is perforated 9 and all is located same axis, in an embodiment, improves extrusion molding in-process, and thermoplastic carries out extruded smoothness in the cavity of screw barrel, guarantees the screw rod at the inside horizontal migration's of screw barrel in-process, guarantees the phenomenon that extrusion molding can not appear in extrusion molding's in-process to further improved holistic machining efficiency of device, reduced the device and appear the problem that extrusion molding can't carry out stable extrusion molding in carrying out extrusion molding in-process.

Referring to fig. 1 and 3, as shown in the drawings, the first sub-clamp 13 and the first sub-clamp 14 are both recessed inwards to form a clamp cavity, and the handpiece connector 3 and the handpiece 1 are wrapped in the clamp cavity.

Specifically, the first sub-clamp 13 and the first sub-clamp 14 are all inwards sunken to form a clamp cavity, the machine head connecting piece 3 and the machine head 1 are wrapped and arranged in the clamp cavity, the machine head and the machine head connecting piece are separated through the first sub-clamp 13 and the first sub-clamp 14, after the clamp 15 is integrally disassembled in this arrangement mode, the first sub-clamp 13 and the first sub-clamp 14 are formed, and after the clamp is separated, the first fixing piece 11 and the second fixing piece 12 are separated, so that the machine head is conveniently and manually fed or maintained rapidly, and the integral machining efficiency of the device is further improved.

Further, in an embodiment, the first sub-clamp 13 and the first sub-clamp 14 are adjusted in tightness through the sprocket, and are used by being matched with the clamp driving mechanism, the whole clamp is disassembled quickly, one side of the clamp can be provided with an adjusting nut, so that the machine head is convenient to feed or maintain quickly by manpower, and the integral machining efficiency of the device is further improved.

Referring to fig. 5, as shown in the drawing, the outer edges of the first driving screw 23 and the second driving screw 24 are provided with spiral threads, the spiral threads include a first thread 19 and a second thread 20, and the spiral directions of the first thread 19 and the second thread 20 are opposite.

Specifically, the outside edge of first drive lead screw 23 and second drive lead screw 24 is provided with helical screw thread, helical screw thread includes first screw thread 19 and second screw thread 20, just first screw thread 19 with the spiral opposite direction of second screw thread 20, in an embodiment, first drive lead screw 23 and second drive lead screw 24 are a trapezoidal screw, the both ends and the sprocket 28 of trapezoidal screw are fixed the back, two sprockets 28 are directional drive by chain 22, so that first drive lead screw 23 and second drive lead screw 24 carry out directional movement towards the central line of chain, thereby carry out directional adjustment with first mounting and the second mounting that drive lead screw one side set up, and then contact first sub-clamp and second sub-clamp, the lateral surface of two simultaneously clamp clamps, thereby by the elasticity of manual control clamp, make things convenient for the manual work to carry out quick material loading or maintain the aircraft nose, further improved the holistic machining efficiency of device.

Further, in this embodiment, the first driving screw 23 rotates in the first direction and the second driving link 24 rotates in the second direction to make the first sub-clamp 13 and the second sub-clamp 14 approach each other and tighten, and the first driving link 23 rotates in the second direction and the second driving link 24 rotates in the first direction to make the first sub-clamp 13 and the second sub-clamp 14 separate from each other.

Referring to fig. 2, 4 and 5, as shown in the drawings, the second fixing member 12 is disposed at an outer edge of the nose connecting member 3, and the second fixing member 12 is a flange with an annular structure, and a side of the flange facing away from the screw cylinder 4 is recessed inwards.

Specifically, the second mounting 12 set up in the outside edge of aircraft nose connecting piece 3, the flange of second mounting 12 for annular structure, the flange deviates from the inside sunken of one side of spiral shell section of thick bamboo 4, in one embodiment, first mounting 11 and second mounting 12 are the fixed mode of linking of dislocation alternately and transversely link up, carry out fixed connection with spiral shell section of thick bamboo 4 and aircraft nose connecting piece 3 through setting up two mountings, link up the in-process through aircraft nose and spiral shell section of thick bamboo 4, the area of connection between spiral shell section of thick bamboo 4 and the aircraft nose connecting piece 3 has been increased, thereby further improve the steadiness of spiral shell section of thick bamboo 4 and aircraft nose, guarantee the phenomenon that extrusion failure can not appear in the in-process of extrusion molding, thereby further improved the holistic machining efficiency of device, reduce the device and carry out the problem that extrusion molding can't be stable extrusion molding in the extrusion molding process.

Referring to fig. 1, 2, 3, 4 and 5, as shown in the drawings, the screw 5 is connected with a motor 16, and the motor 16 drives the screw 5 to move in a direction along the inner wall of the screw cylinder 4 toward one end of the handpiece 1.

Specifically, in this scheme embodiment, driving motor 16 drive screw 5 carries out directional removal towards one side of aircraft nose to carry out directional extrusion to the high temperature plastic in the screw shell 4, in carrying out extrusion molding processing, carry out extrusion molding with the high temperature plastic, thereby further improved the holistic machining efficiency of plastic, reduce the device and appear the problem that extrusion molding can't carry out stable extrusion molding in carrying out extrusion molding process, on the one hand, realize opening and shutting of quick clamp device, thereby realize clamping the effect of aircraft nose 1 and screw shell 4. On the other hand, through the directional removal of a motor drive screw that sets up alone, the screw rod level carries out the in-process that stretches out and draws back, and the clamp is not hard up behind aircraft nose 1 and the screw shell 4 clamp, has improved the stability of the whole extrusion molding of device simultaneously.

While the utility model has been described with reference to certain preferred embodiments, it will be understood by those skilled in the art that various changes and substitutions of equivalents may be made and equivalents will be apparent to those skilled in the art without departing from the scope of the utility model. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.

Claims

1. An extrusion apparatus, comprising: the machine head comprises a screw cylinder, a machine head connecting piece and a clamp which is assembled at the outer side of the machine head connecting piece and used for fastening the machine head connecting piece, wherein the screw cylinder is of a hollow cylindrical structure, and a screw rod is assembled in the screw cylinder;

The clamp is driven by a clamp driving mechanism;

The gripper driving mechanism includes: the driving chain wheel assembly and the driving screw rod are in transmission connection with the driving chain wheel assembly, the driving screw rod comprises a first driving screw rod and a second driving screw rod, and the driving chain wheel assembly comprises two groups of chain wheel assemblies;

The clamp comprises a first sub-clamp and a second sub-clamp; screw holes are formed in the two ends of the first sub-clamp and the two ends of the second sub-clamp; the first driving screw rod penetrates through the first sub-clamp and the second sub-clamp at the same time and is positioned in a screw hole at one end; the second driving screw rod penetrates through the first sub-clamp and the second sub-clamp at the same time and is positioned in a screw hole at the other end;

The two ends of the first driving screw rod and the two ends of the second driving screw rod are respectively provided with a connecting column;

the connecting column of one side of the first driving screw rod and the second driving screw rod is in transmission connection through a group of chain wheel assemblies; the connecting columns of the first driving screw rod and the second driving screw rod on the other side are in transmission connection through another group of chain wheel assemblies, so that a machine head and a machine head connecting piece arranged on the extrusion molding device are clamped and disassembled;

A cavity is formed in the machine head, one side of the cavity is connected with a first perforation, and a second perforation is formed in one surface of the machine head adjacent to the first perforation;

The end, connected with the machine head, of the machine head connecting piece forms a horn-shaped opening, the opening diameter of the horn-shaped opening towards one end of the machine head is larger than the opening diameter of one end far away from the machine head, the end with the larger opening diameter is a fourth perforation, and the end with the smaller opening diameter is a third perforation; the third perforation is communicated with the second perforation, and the outer side edge of the fourth perforation is connected with the outer side wall of the screw cylinder;

2. An extrusion apparatus according to claim 1, wherein the screw is of cylindrical configuration, the periphery of the cylindrical configuration being provided with a helical flange.

3. An extrusion apparatus according to claim 1, wherein the inner wall of the barrel is provided with a plurality of helically structured threads.

4. An extrusion apparatus according to claim 1, wherein each set of sprocket assemblies comprises a chain and two sprockets, and wherein the two sprockets of the same set of sprocket assemblies are synchronously driven by a corresponding one of the chains, the chains being nested on the two sprockets.

5. An extrusion device according to claim 1, wherein the edge of the opening of the screw barrel towards one side of the head is provided with a fixing member, the fixing member comprises a first fixing member and a second fixing member, the cross section of the first fixing member is inclined, the first fixing member is a flange of an annular structure, and the flange extends outwards towards one side of the screw barrel.

6. An extrusion apparatus according to claim 5, wherein the cavity of the barrel is co-axial with the third bore, the second bore and the fourth bore.

7. An extrusion apparatus as set forth in claim 5 wherein said first and second sub-clamps are each recessed inwardly to form a clamp cavity, said handpiece connector and said handpiece wrap being disposed within said clamp cavity.

8. An extrusion apparatus according to claim 1, wherein the outer edges of the first and second drive screws are provided with helical threads, the helical threads comprising first and second threads, and the first and second threads being of opposite helical directions.

9. An extrusion apparatus as recited in claim 5, wherein the second fastener is disposed at an outer edge of the nose connector, and the second fastener is a flange of annular configuration, and a side of the flange facing away from the barrel is recessed inwardly.

10. An extrusion apparatus according to claim 1, wherein the screw is coupled to a motor, the motor driving the screw to move directionally along the inner wall of the barrel toward one end of the head.