Cooling water device of screw machine barrel and manufacturing method of cooling water device

Abstract

The invention discloses a cooling water device of a screw machine barrel and a manufacturing method of the cooling water device, the cooling water device comprises a block body, a top opening is formed in the top of the block body, roundabout cooling water containing grooves are formed in the side wall and the bottom surface of the block body, and the adjacent cooling water containing grooves are communicated with each other through side wall through holes; cover plates are respectively arranged on the side wall and the bottom surface of the block-shaped body, and communicating ports are formed in the three cover plates. The manufacturing method comprises the following steps: manufacturing the outer cylinder, the inner cylinder and the block-shaped body; a roundabout cooling water containing groove and a side wall through hole are manufactured; a locking structure is manufactured on the outer wall of the inner cylinder; manufacturing a feed port of the machine barrel; thread positioning holes are machined in the periphery of each cooling water containing groove in a surrounding mode; the cover plate is connected with the block-shaped body; and a communication port is formed in the cover plate. The cooling device has the advantages that the cooling device is easy to machine, can be in contact with a machine barrel body in a larger area, is high in cooling efficiency, and can control the temperature of the machine barrel more accurately; the circulation of a water path can be realized and is smooth.

Description

Technical Field

[0001] The invention relates to the technical field of injection molding machine barrel manufacturing, in particular to a cooling water device for a screw barrel and a manufacturing method thereof. Background Art

[0002] There is a Chinese utility model patent with patent number CN201721137878.5 and the name of "A sheet extruder barrel feeding cooling mechanism", which discloses a sheet extruder barrel feeding cooling mechanism, including an extruder barrel, which is provided with a feed port, and is characterized in that: a plurality of semi-annular grooves distributed along the axial interval are provided on the outer wall of the extruder barrel cooling section, and a straight groove penetrating each of the semi-annular grooves along the axial direction is also provided on the outer wall of the extruder barrel cooling section; it also includes a cooling pipe, which has a plurality of semi-annular cooling parts and a straight cooling part; the semi-annular cooling channels in the semi-annular cooling parts are connected with the straight cooling channels in the straight cooling parts; the semi-annular cooling parts are inserted into the semi-annular grooves one by one, the straight cooling parts are inserted into the straight grooves, and a water inlet and a water outlet are respectively provided at both ends of the straight cooling part; the cooling pipe is detachably fixed to the extruder barrel. The utility model is used for cooling the feed of the barrel of a sheet extruder, and has a good cooling effect, and can solve the problem in the prior art that the barrel can only be replaced as a whole when the cooling channel in the barrel is rusted or blocked. However, the contact area between the feed cooling mechanism and the barrel can be further increased, so the structure of the feed cooling mechanism needs to be further improved. Summary of the invention

[0003] The first technical problem to be solved by the present invention is to provide a cooling water device for a screw barrel with good material cooling effect in view of the above-mentioned existing technical status.

[0004] The technical solution adopted by the present invention to solve the above-mentioned technical problems is: the cooling water device of the screw barrel is characterized in that it includes a block body which is sleeved outside the barrel feed section, a top opening which can be connected to the barrel feed port is arranged on the top of the block body, and circuitous cooling water containing grooves are arranged on the side wall and bottom surface of the block body, and adjacent cooling water containing grooves are connected to each other through corresponding side wall through holes, and cover plates which can cover the corresponding cooling water containing grooves are arranged on the side wall and bottom surface of the block body, and at least two connecting ports which can connect the outside of the block body and the corresponding cooling water containing grooves are arranged on the three cover plates.

[0005] As an improvement, the distance from the bottom of any cooling water holding tank to the inner wall of the corresponding barrel can preferably remain unchanged, so that the heat conduction is more uniform and the temperature control effect is better.

[0006] As a further improvement, the first receiving groove and the second receiving groove on the side wall of the block body may preferably be both S-shaped structures, and the third receiving groove on the bottom surface of the block body may preferably be U-shaped structure.

[0007] As an improvement, the three cover plates can be preferably respectively connected to the block body in a detachable manner via circumferential fixing screws.

[0008] As a further improvement, a communication port may preferably be provided on any cover plate.

[0009] As a further improvement, a stepped protrusion may be preferably provided on the inner wall of any connecting port, a guide tube is inserted into the connecting port, and the end surface of the guide tube extends out of the corresponding cover plate surface.

[0010] As an improvement, the barrel feeding section may preferably include an outer barrel and an inner barrel, the outer barrel and the block are made as one piece, the inner barrel is inserted into the inner hole of the outer barrel, and a locking structure that can be fixed to the outer barrel is provided on the outer wall of the inner barrel.

[0011] As a further improvement, the specific structure of the locking structure may preferably be that keyways are respectively provided on the outer wall of the inner cylinder and the inner wall of the outer cylinder, the inner cylinder and the outer cylinder are fixed together by means of a limit key inserted into the keyway, and limit threaded holes are correspondingly provided on the outer cylinder and the limit key corresponding to the keyway of the outer cylinder, and the limit key is fixed to the outer cylinder by a limit screw inserted in the limit threaded hole.

[0012] As a further improvement, both ends of the outer cylinder may preferably be provided with positioning flanges respectively, the positioning flange at one end is a square flange that can be conveniently connected to the bracket, and the positioning flange at the other end is a circular flange that can be conveniently connected to the remaining part of the barrel, and an engaging groove is provided in the middle of the circular flange.

[0013] The second technical problem to be solved by the present invention is to provide a method for manufacturing a cooling water device for a screw barrel with good material cooling effect in view of the above-mentioned existing technical status.

[0014] The technical solution adopted by the present invention to solve the above technical problem is: a method for manufacturing the cooling water device of the screw barrel, characterized in that it comprises the following steps:

[0015] 1. Manufacturing the outer cylinder and the inner cylinder of the barrel, and processing the block and the outer cylinder as a whole while processing the outer cylinder to obtain a composite structure of the block and the outer cylinder;

[0016] 2. Making circuitous cooling water receiving grooves on the side walls and bottom surfaces of the composite structure respectively, so that the distance from the bottom of any cooling water receiving groove to the inner wall of the corresponding inner hole of the outer cylinder remains unchanged, and making side wall through holes connecting adjacent cooling water receiving grooves at the bottom of the cooling water receiving grooves;

[0017] 3. Making a locking structure on the outer wall of the inner cylinder, and fixing the inner cylinder inserted into the composite structure and the composite structure together through the locking structure;

[0018] Fourth, a barrel feed port is made on the integral structure formed by fixing the composite structure and the inner barrel body, so that the barrel feed port is connected to the inner hole and cavity of the composite structure;

[0019] 5. Process threaded positioning holes around each cooling water tank;

[0020] 6. Cover the three cover plates on the surface of the corresponding composite structure and fix them to the composite structure by positioning screws;

[0021] 7. Make connecting ports that can be connected to the cooling water inlet pipes on the three cover plates respectively, thus completing the production of the cooling water device of the screw barrel.

[0022] Compared with the prior art, the advantages of the present invention are: the cooling groove is arranged on the block, and the groove is processed on the plane, which is easy to process and has high manufacturing efficiency; the cooling water containing groove is arranged on the block in a circuitous manner, which can contact the barrel body with a larger area than the prior art, has high cooling efficiency, and can make the temperature control of the barrel more precise; adjacent cooling water containing grooves are interconnected through corresponding side wall through holes, and connecting ports are arranged on the cover plate, which can realize the circulation of the water channel, and the circulation is smooth, thereby solving the technical problem that the conventional hollowed-out water channel in the prior art is prone to form dead water. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A three-dimensional diagram of an embodiment of the present invention;

[0024] Figure 2 for Figure 1 A top view of

[0025] Figure 3 yes Figure 2 Sectional view along line AA;

[0026] Figure 4 yes Figure 2 The cross section along line BB;

[0027] Figure 5 yes Figure 1 The structural breakdown diagram of

[0028] Figure 6 yes Figure 5 A further structural breakdown at another angle;

[0029] Figure 7 yes Figure 6 A further structural decomposition diagram after removing the decomposed cover plate;

[0030] Figure 8 yes Figure 7 A bottom view after removing the decomposed inner cylinder;

[0031] Fig. 9 yes Figure 8 Sectional view along line CC. DETAILED DESCRIPTION

[0032] The present invention is further described in detail below with reference to the accompanying drawings.

[0033] like Figures 1 to 9 As shown, the cooling water device of the screw barrel of this embodiment includes a block 1 sleeved outside the barrel feed section, a top opening that can be connected to the barrel feed port 10 is arranged on the top of the block 1, and a circuitous cooling water receiving groove is arranged on the side wall and bottom surface of the block 1. Adjacent cooling water receiving grooves are connected to each other through corresponding side wall through holes 14, and cover plates 4 that can cover the corresponding cooling water receiving grooves are arranged on the side wall and bottom surface of the block 1, respectively. At least two connecting ports that can connect the outside of the block and the corresponding cooling water receiving grooves are arranged on the three cover plates 4. The distance from the bottom of any cooling water receiving groove to the corresponding barrel inner wall remains unchanged.

[0034] The first receiving groove 11 and the second receiving groove 12 on the side wall of the block are both S-shaped structures, and the third receiving groove 13 on the bottom surface of the block is a U-shaped structure. The three cover plates 4 are detachably connected to the block 1 through surrounding fixing screws 41. A communication port is provided on any cover plate 4. A step protrusion is provided on the inner wall of any communication port, and a guide tube 42 is inserted into the communication port, and the end surface of the guide tube 42 extends out of the corresponding surface of the cover plate 4.

[0035] The barrel feeding section includes an outer barrel 2 and an inner barrel 3. The outer barrel 2 and the block 1 are made in one piece. The inner barrel 3 is inserted into the inner hole of the outer barrel 2. A locking structure that can be fixed with the outer barrel 2 is provided on the outer wall of the inner barrel 3. The specific structure of the locking structure is that a keyway 31 is provided on the outer wall of the inner barrel 3 and the inner wall of the outer barrel 2 respectively. The inner barrel 3 and the outer barrel 2 are fixed together by a limit key 32 inserted into the keyway 31. A limit threaded hole is correspondingly provided on the outer barrel 2 and the limit key 32 corresponding to the keyway 31 of the outer barrel 2. The limit key 32 is fixed to the outer barrel 2 by a limit screw inserted in the limit threaded hole.

[0036] The outer cylinder 2 is provided with positioning flanges at both ends. The positioning flange at one end is a square flange that can be conveniently connected to the bracket, and the positioning flange at the other end is a circular flange that can be conveniently connected to the remaining part of the barrel. An engaging groove 21 is provided in the middle of the circular flange.

[0037] The manufacturing method of the cooling water device of the screw barrel comprises the following steps:

[0038] 1. manufacturing the outer barrel 2 and the inner barrel 3 of the barrel, and processing the block 1 and the outer barrel 2 as a whole while processing the outer barrel 2, so as to obtain a composite structure of the block 1 and the outer barrel 2;

[0039] Second, circuitous cooling water receiving grooves are made on the side walls and bottom surfaces of the composite structure, so that the distance from the bottom of any cooling water receiving groove to the inner wall of the corresponding inner hole of the outer cylinder remains unchanged, and a side wall through hole 14 connecting the adjacent cooling water receiving grooves is made at the bottom of the cooling water receiving groove;

[0040] 3. Making a locking structure on the outer wall of the inner cylinder 3, and fixing the inner cylinder 3 inserted into the composite structure with the composite structure through the locking structure;

[0041] Fourth, a barrel feed port 10 is made on the integral structure formed by fixing the composite structure and the inner barrel 3, so that the barrel feed port 10 is connected to the inner hole and cavity of the composite structure;

[0042] 5. Process threaded positioning holes around each cooling water tank;

[0043] 6. Cover the three cover plates 4 on the surface of the corresponding composite structure and fix them to the composite structure by positioning screws;

[0044] 7. Make connecting ports that can be connected to the cooling water inlet pipe on the three cover plates 4 respectively, and the cooling water device of the screw barrel is completed.

Claims

1. A cooling water device for a screw barrel, characterized in that: The invention comprises a block (1) which is sleeved outside a barrel feed section, a top opening which can be connected to a barrel feed port (10) is arranged on the top of the block (1), a circuitous cooling water receiving groove is arranged on the side wall and the bottom surface of the block (1), adjacent cooling water receiving grooves are connected to each other through corresponding side wall through holes (14), cover plates (4) which can cover the corresponding cooling water receiving grooves are arranged on the side wall and the bottom surface of the block (1), and at least two connecting openings which can connect the outside of the block and the corresponding cooling water receiving grooves are arranged on the three cover plates (4).

2. The cooling water device according to claim 1, characterized in that: The distance from any point on the bottom of any cooling water holding tank to the inner wall of the corresponding barrel remains unchanged.

3. The cooling water device according to claim 2, characterized in that: The first accommodating groove (11) and the second accommodating groove (12) located on the side wall of the block are both S-shaped structures, and the third accommodating groove (13) located on the bottom surface of the block is a U-shaped structure.

4. The cooling water device according to any one of claims 1 to 3, characterized in that: The three cover plates (4) are respectively connected to the block body (1) in a detachable manner via surrounding fixing screws (41).

5. The cooling water device according to claim 4, characterized in that: Any cover plate (4) is provided with a communication port.

6. The cooling water device according to claim 5, characterized in that: A step protrusion is provided on the inner wall of any communication port, a guide tube (42) is plugged into the communication port, and the end surface of the guide tube (42) extends out of the surface of the corresponding cover plate (4).

7. The cooling water device according to any one of claims 1 to 3, characterized in that: The barrel feeding section comprises an outer barrel (2) and an inner barrel (3); the outer barrel (2) and the block (1) are integrally manufactured; the inner barrel (3) is inserted into the inner hole of the outer barrel (2); and a locking structure capable of being fixed to the outer barrel (2) is provided on the outer wall of the inner barrel (3).

8. The cooling water device according to claim 7, characterized in that: The specific structure of the locking structure is that keyways (31) are respectively arranged on the outer wall of the inner cylinder (3) and the inner wall of the outer cylinder (2); the inner cylinder (3) and the outer cylinder (2) are fixed together by means of a limit key (32) inserted into the keyway (31); limit threaded holes are correspondingly arranged on the outer cylinder (2) and the limit key (32) corresponding to the keyway (31) of the outer cylinder (2); the limit key (32) is fixed to the outer cylinder (2) by means of a limit screw inserted into the limit threaded hole.

9. The cooling water device according to claim 7, characterized in that: The outer cylinder (2) is provided with positioning flanges at both ends, the positioning flange at one end is a square flange that can be conveniently connected to the bracket, and the positioning flange at the other end is a circular flange that can be conveniently connected to the remaining part of the barrel, and an engaging groove (21) is provided in the middle of the circular flange.

10. A method for manufacturing a cooling water device for a screw barrel according to any one of claims 1 to 9, characterized in that: The following steps are included:

1. manufacturing an outer barrel (2) and an inner barrel (3) of the barrel, and processing the block (1) and the outer barrel (2) as a whole while processing the outer barrel (2) to obtain a composite structure of the block (1) and the outer barrel (2); Second, circuitous cooling water receiving grooves are respectively made on the side walls and bottom surfaces of the composite structure, so that the distance from the bottom of any cooling water receiving groove to the inner wall of the corresponding inner hole of the outer cylinder remains unchanged, and side wall through holes (14) are made at the bottom of the cooling water receiving groove to connect with adjacent cooling water receiving grooves; 3. Making a locking structure on the outer wall of the inner cylinder (3), and fixing the inner cylinder (3) inserted into the composite structure and the composite structure together through the locking structure; Fourth, a barrel feed port (10) is made on the integral structure formed by fixing the composite structure and the inner barrel (3), so that the barrel feed port (10) is connected to the inner hole and cavity of the composite structure; 5. Process threaded positioning holes around each cooling water tank; 6. Cover the three cover plates (4) on the surface of the corresponding composite structure and fix them to the composite structure by means of positioning screws; 7. Make connecting ports that can be connected to the cooling water inlet pipe on the three cover plates (4), thus completing the production of the cooling water device for the screw barrel.

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