CN111633916B

CN111633916B - Injection molding device with mold cleaning function

Info

Publication number: CN111633916B
Application number: CN202010555284.6A
Authority: CN
Inventors: 蓝茂生; 潘平; 何公平
Original assignee: Individual
Current assignee: Lan Maosheng; Pan Ping
Priority date: 2020-06-17
Filing date: 2020-06-17
Publication date: 2021-03-09
Anticipated expiration: 2040-06-17
Also published as: CN111633916A

Abstract

The invention discloses an injection molding device with a mold cleaning function, which comprises a main body, wherein a driving cavity is arranged in the main body, a driving assembly is arranged in the driving cavity, a cleaning cavity is communicated with the lower side of the driving cavity and is internally provided with a cleaning assembly, an injection molding cavity is communicated with the lower side of the cleaning cavity and is internally provided with an injection molding assembly, the cleaning assembly comprises a screw rod which is rotatably arranged on the upper end wall of the driving cavity and extends downwards to the injection molding cavity, a lifting sliding groove is arranged on the rear end wall of the cleaning cavity and the injection molding cavity, the cleaning assembly descends to the injection molding cavity when the mold needs to be cleaned, water spraying and cleaning work are repeatedly carried out on a movable mold and a fixed mold, the cleaning brush rotates around the center simultaneously, the cleaning range is expanded, the water spraying range is expanded by rotating a nozzle, the cleaning effect is.

Description

Injection molding device with mold cleaning function

Technical Field

The invention relates to the technical field of plastic molds, in particular to an injection molding device with a mold cleaning function.

Background

Injection molding is a method of molding by injection and molding. Stirring the completely molten plastic material by a screw at a certain temperature, injecting the plastic material into a mold cavity by high pressure, and cooling and solidifying to obtain a molded product. The method has the advantages of high production speed, high efficiency, automation of operation, various designs and varieties, capability of forming parts with complicated shapes from simple to complex, and suitability for the field of molding processing such as mass production and products with complicated shapes by injection molding. However, the mold with a complicated shape is easy to have residues left on the mold after injection molding, and is difficult to clean, and manual cleaning usually consumes a lot of time and labor, and simple washing is difficult to clean.

Disclosure of Invention

Aiming at the technical defects, the invention provides an injection molding device with a mold cleaning function, which can overcome the defects.

The injection molding device with the mold cleaning function comprises a main body, wherein a driving cavity is arranged in the main body, a driving assembly is arranged in the driving cavity, a cleaning cavity is communicated with the lower side of the driving cavity, a cleaning assembly is arranged in the cleaning cavity, an injection molding cavity is communicated with the lower side of the cleaning cavity, an injection molding assembly is arranged in the injection molding cavity, the cleaning assembly comprises a screw rod which is rotatably arranged on the upper end wall of the driving cavity and extends downwards to the injection molding cavity, a lifting sliding groove is arranged on the rear end wall of the cleaning cavity and the injection molding cavity, a threaded lifting block which is in threaded fit with the screw rod and has a rotating cavity with the left side and the right side communicated with the outside is slidably arranged in the lifting sliding groove, a rotating block is rotatably arranged in the rotating cavity, a water spraying cavity is arranged in the rotating block, a cleaning cavity with the right side communicated with the outside is arranged on the right side of the water spraying cavity, a cleaning, clean axis of rotation right side fixed mounting and have the rotation connecting rod, clean the chamber about the end wall rotate install annular turning block connecting rod, two from top to bottom fixed mounting has annular turning block between the annular turning block connecting rod, both sides rotate around the annular turning block and install the motor connecting rod, two from front to back fixed mounting has clean motor between the motor connecting rod, clean motor left side power connection have the left side with rotate connecting rod fixed connection's clean transmission shaft, clean motor right side power connection has the drive shaft of cleaning, clean drive shaft right side fixed mounting has the right side to contain the brush clean the turning block.

Preferably, clean subassembly is still including being located the water spray intracavity with clean axis of rotation fixed connection's initiative drive gear, water spray chamber left end wall fixed mounting has the water pump fixed block that the right side is fixed with the water pump, water pump right side power connection has the water pump drive shaft, water pump drive shaft right side fixed mounting have with initiative drive gear meshed water pump gear, the water pump downside is connected with the outlet pipe, the outlet pipe left side is connected with through the bearing and extends left the turning block outside with the return bend of water spray chamber left end wall rotation installation, the return bend left side is connected with the nozzle, the water spray intracavity be equipped with return bend fixed connection's driven water pipe gear, water spray chamber left end wall rotates and installs and is located the clean driven shaft of return bend downside, fixed mounting on the clean driven shaft with driven water pipe gear meshed initiative water pipe gear and can with initiative drive gear meshed driven clean And the upper side of the water pump is connected with a water inlet pipe.

Preferably, the driving assembly comprises a driving motor fixedly connected with the upper end wall of the driving cavity, the lower side of the driving motor is in power connection with a lifting driving shaft, the lower side of the lifting driving shaft is connected with a spline shaft through a spline sleeve, a reciprocating gear is fixedly connected onto the spline shaft, the rear end wall of the driving cavity is provided with a dovetail sliding groove, a dovetail sliding block connected with the lower side of the spline shaft through a bearing is arranged in the dovetail sliding groove in a sliding manner, an electromagnet is arranged on the upper side of the dovetail sliding groove, an iron block matched with the electromagnet is arranged on the upper side of the dovetail sliding groove, the lower side of the dovetail sliding block and the lower side of the dovetail sliding groove pass through a spring, the upper end wall of the driving cavity is rotatably provided with a lifting transmission shaft positioned on the rear side of the lifting driving shaft, and, the wall of the upper end of the driving cavity is rotatably provided with a rotating transmission shaft positioned at the front side of the lifting driving shaft, and a driven rotating gear which can be meshed with the reciprocating gear is fixedly arranged at the lower side of the rotating transmission shaft.

Preferably, the driving assembly further comprises a driving lifting belt pulley fixedly mounted on the lifting transmission shaft and located on the upper side of the driven lifting gear, a driven lifting belt pulley connected with the driving lifting belt pulley through a lifting belt is fixedly mounted on the screw rod, a driving rotating disc located on the lower side of the driven rotating gear is fixedly mounted on the rotating transmission shaft, two rotating connecting rods containing limit blocks are arranged on the driving rotating disc, a hollow rotating shaft rotatably mounted on the upper side of the rotating block and rotatably mounted on the upper end wall of the threaded lifting block and upwardly extending to the driving cavity, a sheave capable of being matched with the driving rotating disc is fixedly mounted on the upper side of the hollow rotating shaft, four limit grooves capable of being matched with the limit blocks are arranged on the sheave at equal angles, a water tank is arranged on the front side of the injection molding cavity, and an L-shaped water pipe communicated with the water tank is arranged on the upper end, the drive intracavity be equipped with L type water pipe downside passes through the rotation water pipe that the bearing is connected, rotate the water pipe downside with the inlet tube upside is through being located flexible water piping connection in the hollow axis of rotation.

Preferably, the subassembly of moulding plastics includes being located mould cavity's cover half fixed block that contains of moulding plastics chamber right side wall, mould plastics chamber left side wall fixed mounting has the slip track, it is equipped with the movable mould fixed block that contains the movable mould groove to slide on the slip track, mould plastics chamber downside intercommunication and be equipped with the unloading chamber, unloading chamber downside is equipped with out the water cavity through the filter intercommunication that contains the filtration pore, it contains the inclined plane to go out water cavity lower wall, it contains the delivery port to go out water cavity left side.

The beneficial effects are that: the device simple structure, convenient operation, the device is at the injection molding during operation, washs the subassembly and is located the clean intracavity of upside, prevents to influence the injection molding, washs the subassembly and drops to the chamber of moulding plastics when the mould needs nature to wash, carries out repeated water spray and cleans work to movable mould and cover half, and clean brush rotation rotates around the center simultaneously, enlarges and cleans the scope, and the nozzle rotates and enlarges the water spray range, and clean effect is better, does not need manual cleaning, saves time and manpower.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

3 FIG. 32 3 is 3 a 3 schematic 3 diagram 3 of 3 the 3 structure 3 A 3- 3 A 3 of 3 FIG. 31 3 according 3 to 3 an 3 embodiment 3 of 3 the 3 present 3 invention 3; 3

FIG. 3 is a schematic diagram of the structure B-B in FIG. 1 according to an embodiment of the present invention;

FIG. 4 is a schematic diagram of the structure C-C in FIG. 1 according to an embodiment of the present invention;

fig. 5 is an enlarged schematic view of the structure at D in fig. 1 according to the embodiment of the present invention.

Detailed Description

All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations and/or steps that are mutually exclusive.

The invention will now be described in detail with reference to fig. 1-5, for convenience of description, the following orientations will now be defined: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.

The injection molding device with the mold cleaning function comprises a main body 10, a driving cavity 11 is arranged in the main body 10, a driving assembly is arranged in the driving cavity 11, a cleaning cavity 14 is communicated and arranged on the lower side of the driving cavity 11, a cleaning assembly is arranged in the cleaning cavity 14, an injection molding cavity 21 is communicated and arranged on the lower side of the cleaning cavity 14, the injection molding assembly is arranged in the injection molding cavity 21, the cleaning assembly comprises a screw 44 which is rotatably arranged on the upper end wall of the driving cavity 11 and extends downwards to the injection molding cavity 21, a lifting sliding groove 47 is arranged on the rear end wall of the cleaning cavity 14 and the injection molding cavity 21, a threaded lifting block 46 which is in threaded fit with the screw 44 and comprises a rotating cavity 81 with the left side and the right side communicated with the outside is arranged in the lifting sliding groove 47, a rotating block 33 is rotatably arranged in the rotating cavity 81, and a water spraying cavity 65 is arranged in, a cleaning cavity 78 with the right side communicated with the outside is arranged on the right side of the water spraying cavity 65, a cleaning rotating shaft 68 extending to the left side of the water spraying cavity 65 is rotatably arranged on the left end wall of the cleaning cavity 78, a rotating connecting rod 69 is fixedly arranged on the right side of the cleaning rotating shaft 68, annular rotating block connecting rods 77 are rotatably arranged on the upper end wall and the lower end wall of the cleaning cavity 78, an annular rotating block 72 is fixedly arranged between the upper annular rotating block connecting rod 77 and the lower annular rotating block connecting rod 77, motor connecting rods 73 are rotatably arranged on the front side and the rear side of the annular rotating block 72, a cleaning motor 71 is fixedly arranged between the front motor connecting rod 73 and the rear motor connecting rod 73, a cleaning transmission shaft 70 fixedly connected with the left side and the rotating connecting rod 69 is dynamically connected on the left side of the cleaning motor 71, a, the screw 44 drives the screw elevating block 46 to slide up and down when rotating, the rotating block 33 can rotate in the rotating cavity 81, the cleaning motor 71 drives the cleaning driving shaft 76, the brush 75 and the cleaning rotating block 74 to rotate when working, and simultaneously, the cleaning motor 71 rotates around the cleaning rotating shaft 68 through the rotating connecting rod 69 due to the combined action of the rotating connecting rod 69, the cleaning rotating shaft 68 and the annular rotating block 72, thereby expanding the cleaning range of the brush 75.

Beneficially, the cleaning assembly further comprises a driving transmission gear 66 fixedly connected with the sweeping rotating shaft 68 and located in the water spraying cavity 65, a water pump fixing block 15 with a water pump 34 fixed on the right side is fixedly installed on the left end wall of the water spraying cavity 65, a water pump driving shaft 80 is dynamically connected on the right side of the water pump 34, a water pump gear 79 meshed with the driving transmission gear 66 is fixedly installed on the right side of the water pump driving shaft 80, a water outlet pipe 42 is connected to the lower side of the water pump 34, the left side of the water outlet pipe 42 is connected with an elbow 17 which extends leftwards and is rotatably installed on the outer side of the rotating block 33 and the left end wall of the water spraying cavity 65 through a bearing, a nozzle 16 is connected to the left side of the elbow 17, a driven water pipe gear 18 fixedly connected with the elbow 17 is arranged in the water, fixed mounting has on the clean driven shaft 20 with the initiative water pipe gear 19 of driven water pipe gear 18 meshing and can with the driven clean gear 67 of initiative drive gear 66 meshing, water pump 34 upside is connected with inlet tube 35, clean motor 71 during operation drives water pump 34 work inhales water follow in the return bend 17 the spout of nozzle 16, simultaneously driven water pipe gear 18 drives return bend 17 rotates, enlarges the water spray range.

Beneficially, the driving assembly includes a driving motor 51 fixedly connected to the upper end wall of the driving chamber 11, a lifting driving shaft 52 is dynamically connected to the lower side of the driving motor 51, a spline shaft 54 is connected to the lower side of the lifting driving shaft 52 through a spline sleeve 53, a reciprocating gear 55 is fixedly connected to the spline shaft 54, a dovetail sliding groove 58 is formed in the rear end wall of the driving chamber 11, a dovetail sliding block 56 connected to the lower side of the spline shaft 54 through a bearing is slidably arranged in the dovetail sliding groove 58, an electromagnet 59 is arranged on the upper side of the dovetail sliding groove 58, an iron block 82 matched with the electromagnet 59 is arranged on the upper side of the dovetail sliding groove 58, a spring 57 is arranged between the lower side of the dovetail sliding block 56 and the lower side of the dovetail sliding groove 58, the lifting transmission shaft 50 located at the rear side of the lifting driving chamber 52 is rotatably mounted on the upper end wall of the driving chamber 11, a driven lifting gear 60 capable, the upper end wall of the driving cavity 11 is rotatably provided with a rotating transmission shaft 41 positioned in front of the lifting driving shaft 52, the lower side of the rotating transmission shaft 41 is fixedly provided with a driven rotating gear 12 capable of being meshed with the reciprocating gear 55, the spring 57 is in a normal stretching state when the electromagnet 59 is not electrified, the reciprocating gear 55 is meshed with the driven rotating gear 12, the spring 57 is stretched when the electromagnet 59 is electrified, and the reciprocating gear 55 is meshed with the driven lifting gear 60.

Beneficially, the driving assembly further includes a driving lifting pulley 61 fixedly mounted on the lifting transmission shaft 50 and located on the upper side of the driven lifting gear 60, a driven lifting pulley 45 connected with the driving lifting pulley 61 through a lifting belt 43 is fixedly mounted on the screw 44, a driving rotating disc 13 located on the lower side of the driven rotating gear 12 is fixedly mounted on the rotating transmission shaft 41, two rotating connecting rods 63 including limiting blocks 62 are disposed on the driving rotating disc 13, a hollow rotating shaft 37 rotatably mounted on the upper side of the rotating block 33 and extending upward to the driving cavity 11 and rotatably mounted on the upper end wall of the threaded lifting block 46, a grooved pulley 38 capable of being matched with the driving rotating disc 13 is fixedly mounted on the upper side of the hollow rotating shaft 37, and four limiting grooves 64 capable of being matched with the limiting blocks 62 are disposed on the grooved pulley 38 at equal angles, the chamber 21 front side of moulding plastics is equipped with

water tank

48, 11 upper end walls in drive chamber be equipped with the L type water pipe 40 of water tank 48 intercommunication, be equipped with in the drive chamber 11 with the rotation water pipe 39 that the 40 downside of L type water pipe passes through the bearing and connects, rotate water pipe 39 downside with inlet tube 35 upside is through being located flexible water pipe 36 in the hollow axis of rotation 37 is connected, initiative rotation disc 13 rotate a week have with stopper 62 with spacing groove 64 cooperation drives the sheave 38 rotates half a week, thereby drives the turning block 33 rotates half a week.

Beneficially, the injection molding assembly comprises a fixed mold fixing block 32 containing a fixed mold groove 31 and located on the right end wall of the injection molding cavity 21, a sliding rail 22 is fixedly installed on the left end wall of the injection molding cavity 21, a movable mold fixing block 29 containing a movable mold groove 30 is slidably arranged on the sliding rail 22, a blanking cavity 28 is communicated with the lower side of the injection molding cavity 21, a water outlet cavity 27 is communicated with the lower side of the blanking cavity 28 through a filter plate 24 containing a filter hole 23, the lower end wall of the water outlet cavity 27 contains an inclined surface 26, a water outlet 25 is arranged on the left side of the water outlet cavity 27, the movable mold is fixed in the movable mold groove 30, the fixed mold is fixed in the fixed mold groove 31, and the movable mold and the fixed mold are cleaned through the nozzle 16.

In the initial state, the screw elevating block 46 is positioned at the uppermost side, the grooved pulley 38 is not engaged with the driving rotary disk 13, the electromagnet 59 is not energized, the spring 57 is in the normal tension state, and the reciprocating gear 55 is engaged with the driven rotary gear 12.

When the mold needs to be cleaned, the movable mold slot 30 is controlled to slide to the leftmost side of the sliding track 22, the electromagnet 59 is electrified to attract the iron block 82, the spring 57 is stretched, the reciprocating gear 55 is engaged with the driven lifting gear 60, the driving motor 51 is started to rotate in the forward direction, so that the lifting driving shaft 52 is driven to rotate, the spline shaft 54 is driven to rotate, so that the driven lifting gear 60 is driven to rotate, so that the lifting driving shaft 50 is driven to rotate, so that the driving lifting belt pulley 61 is driven to rotate, so that the driven lifting belt pulley 45 is driven to rotate, so that the screw 44 is driven to rotate, so that the threaded lifting block 46 and the rotating block 33 are driven to slide downwards, so that the grooved wheel 38 is driven to slide downwards to be matched with the driving rotating disc 13, when the threaded lifting block 46 slides to the lowermost side, the driving motor 51 is stopped, starting the cleaning motor 71 and the driving motor 51, the cleaning motor 71 drives the cleaning driving shaft 76 to rotate, thereby driving the cleaning rotating block 74 to rotate, thereby driving the brush 75 to rotate, informing the cleaning motor 71 to drive the cleaning driving shaft 70 to rotate, thereby driving the rotating link 69 to rotate around the cleaning rotating shaft 68, thereby driving the cleaning rotating shaft 68 to rotate, thereby driving the brush 75 to clean the fixed mold completely, simultaneously the cleaning rotating shaft 68 drives the driving transmission gear 66 to rotate, thereby driving the water pump gear 79 to rotate, thereby driving the water pump driving shaft 80 to rotate, thereby driving the water pump 34 to work, water passes through the L-shaped water pipe 40 from the water tank 48, the rotating water pipe 39, the telescopic water pipe 36, the water inlet pipe 35, the water outlet pipe 42 and the elbow 17 to be sprayed from the nozzle 16 to the movable mold, simultaneously the driving transmission gear 66 drives the driven cleaning gear 67 to rotate, thereby driving the driven water pipe gear 18 to rotate, thereby driving the elbow 17 to rotate, expanding the water spraying range, simultaneously driving the motor 51 to drive the lifting driving shaft 52 to rotate, thereby driving the spline shaft 54 to rotate, thereby driving the reciprocating gear 55 to rotate, thereby driving the driven rotating gear 12 to rotate, thereby driving the rotating driving shaft 41 to rotate, thereby driving the driving rotating disc 13 to rotate, thereby driving the grooved wheel 38 to rotate, when the driving rotating disc 13 rotates for one circle, driving the grooved wheel 38 to rotate for half circle, thereby driving the rotating block 33 to rotate for half circle, the nozzle 16 sprays water to the fixed die, the brush 75 cleans the moving die, after the cleaning is completed, the motor 71 is cleaned, the driving motor 51 is stopped, the electromagnet 59 is electrified, the iron block 82 is attracted, the spring 57 is stretched, the reciprocating gear 55 is engaged with the driven lifting gear 60, the driving motor 51 is started to rotate reversely, thereby driving the thread lifting block 46 and the rotating block 33 to, the electromagnet 59 is de-energized and the device is reset due to the spring 57 acting to engage the reciprocating gear 55 with the driven rotating gear 12.

The above description is only an embodiment of the invention, but the scope of the invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the invention. Therefore, the protection scope of the invention should be subject to the protection scope defined by the claims.

Claims

1. The utility model provides a contain mould cleaning function's device of moulding plastics, includes the main part, its characterized in that: the cleaning device is characterized in that a driving cavity is arranged in the main body, a driving assembly is arranged in the driving cavity, a cleaning cavity is communicated with the lower side of the driving cavity, a cleaning assembly is arranged in the cleaning cavity, an injection molding cavity is communicated with the lower side of the cleaning cavity, an injection molding assembly is arranged in the injection molding cavity, the cleaning assembly comprises a screw rod which is rotatably arranged on the upper end wall of the driving cavity and extends downwards to the injection molding cavity, a lifting sliding groove is arranged on the rear end wall of the cleaning cavity and the injection molding cavity, a threaded lifting block which is in threaded fit with the screw rod is slidably arranged in the lifting sliding groove, the left side and the right side of the lifting sliding block are provided with rotating cavities communicated with the outside, a rotating block is rotatably arranged in the rotating cavity, a water spraying cavity is arranged in the rotating block, a cleaning cavity with the right side communicated with the outside is, a rotary connecting rod is fixedly arranged on the right side of the cleaning rotary shaft, annular rotating block connecting rods are rotatably arranged on the upper end wall and the lower end wall of the cleaning cavity, an annular rotating block is fixedly arranged between the upper annular rotating block connecting rod and the lower annular rotating block connecting rod, motor connecting rods are rotatably arranged on the front side and the rear side of the annular rotating block, a cleaning motor is fixedly arranged between the front motor connecting rod and the rear motor connecting rod, the left side of the cleaning motor is in power connection with a cleaning transmission shaft, the left side of the cleaning motor is fixedly connected with the rotating connecting rod, the right side of the cleaning motor is in power connection with; the cleaning assembly further comprises a driving transmission gear which is positioned in the water spraying cavity and is fixedly connected with the cleaning rotation shaft, a water pump fixing block of which the right side is fixed with a water pump is fixedly arranged on the left end wall of the water spraying cavity, the right side of the water pump is in power connection with a water pump driving shaft, a water pump gear which is engaged with the driving transmission gear is fixedly arranged on the right side of the water pump driving shaft, the lower side of the water pump is connected with a water outlet pipe, the left side of the water outlet pipe is connected with a bent pipe which extends leftwards, the outer side of the rotating block and the left end wall of the water spraying cavity are rotatably arranged, the left side of the bent pipe is connected with a nozzle, a driven water pipe gear which is fixedly connected with the bent pipe is arranged in the water spraying cavity, a cleaning driven shaft which is positioned on the lower, the upper side of the water pump is connected with a water inlet pipe; the driving assembly comprises a driving motor fixedly connected with the upper end wall of the driving cavity, the lower side of the driving motor is in power connection with a lifting driving shaft, the lower side of the lifting driving shaft is connected with a spline shaft through a spline sleeve, a reciprocating gear is fixedly connected onto the spline shaft, the rear end wall of the driving cavity is provided with a dovetail sliding groove, a dovetail sliding block connected with the lower side of the spline shaft through a bearing is arranged in the dovetail sliding groove in a sliding mode, an electromagnet is arranged on the upper side of the dovetail sliding groove, an iron block matched with the electromagnet is arranged on the upper side of the dovetail sliding groove, the lower side of the dovetail sliding block and the lower side of the dovetail sliding groove are connected through a spring, a lifting transmission shaft positioned on the rear side of the lifting driving shaft is installed on the upper end wall of the driving cavity in a rotating mode, a driven lifting gear capable of being meshed with the reciprocating gear is fixedly, a driven rotating gear which can be meshed with the reciprocating gear is fixedly arranged on the lower side of the rotating transmission shaft; the driving assembly further comprises a driving lifting belt pulley fixedly mounted on the lifting transmission shaft and positioned on the upper side of the driven lifting gear, a driven lifting belt pulley connected with the driving lifting belt pulley through a lifting belt is fixedly mounted on the screw rod, a driving rotating disc positioned on the lower side of the driven rotating gear is fixedly mounted on the rotating transmission shaft, two rotating connecting rods containing limit blocks are arranged on the driving rotating disc, a hollow rotating shaft rotatably mounted on the upper side of the rotating block and rotatably mounted with the upper end wall of the threaded lifting block and upwardly extending to the driving cavity, a grooved wheel capable of being matched with the driving rotating disc is fixedly mounted on the upper side of the hollow rotating shaft, four limit grooves capable of being matched with the limit blocks are arranged on the grooved wheel at equal angles, a water tank is arranged on the front side of the injection molding cavity, and an L-shaped water pipe communicated with the water tank is arranged on, a rotary water pipe connected with the lower side of the L-shaped water pipe through a bearing is arranged in the driving cavity, and the lower side of the rotary water pipe is connected with the upper side of the water inlet pipe through a telescopic water pipe positioned in the hollow rotary shaft; the injection molding assembly comprises a fixed die fixing block containing a fixed die groove and located on the right end wall of the injection molding cavity, a sliding rail is fixedly mounted on the left end wall of the injection molding cavity, a movable die fixing block containing a movable die groove is slidably arranged on the sliding rail, a blanking cavity is communicated with the lower side of the injection molding cavity, a water outlet cavity is formed in the lower side of the blanking cavity through a filter plate communicated with a filter hole, an inclined plane is formed in the lower end wall of the water outlet cavity, and a water outlet is formed in the left side of the water outlet cavity.