A screw and screw injection molding machine based on laser cladding

Abstract

The present invention discloses a screw and a screw injection molding machine based on laser cladding, comprising: a workbench and a barrel, wherein the injection molding screw is rotatably installed inside the barrel through a screw driving mechanism; an anti-retention component, wherein the anti-retention component is provided with multiple groups, and the multiple groups of anti-retention components are arranged in a ring-shaped equidistant manner, and the multiple groups of anti-retention components are composed of memory steel plates and vibration components, and the inner wall of the barrel is provided with multiple groups of working grooves, and the anti-retention component and the working groove are arranged in pairs, and the memory steel plate is movably arranged at one end inside the working groove; a speed change component, wherein the speed change component is transmission-connected with the linkage component, and the speed change component is rotatably installed inside the discharge pipe through the linkage component. The present invention has the advantages of being able to effectively process different plastics processed in the barrel through the mutual cooperation of the anti-retention component, the speed change component and the linkage component, thereby effectively reducing the processing cost and avoiding the blockage of the discharge of subsequent materials after the hardening of the material.

Description

Technical Field

[0001] The invention belongs to the technical field of screw injection molding machines, and in particular relates to a screw and a screw injection molding machine based on laser cladding. Background Art

[0002] The screw injection molding machine is a type of injection molding equipment used in the plastic processing industry. It heats, melts and injects plastic particles or powders into the mold through the screw to form the required plastic products. The screw of the injection molding machine is an important component of the injection molding machine. It is mainly used to convey, compact, melt, stir and pressurize plastics. Usually, the screw is placed inside the barrel, and there is a discharge port at one end of the barrel, and there is a storage area below the discharge port for storing the plastic particles heated by the screw. However, the surface of the screw is easily worn due to long-term friction, resulting in a decrease in service life. In combination with laser cladding technology, the surface of the screw is improved to increase the service life of the injection molding screw. Laser cladding, also known as laser cladding or laser coating, is a new surface modification technology. It forms a metallurgically bonded additive cladding layer on the surface of the base by adding cladding material to the surface of the substrate and using a high-energy-density laser beam to melt it together with a thin layer on the surface of the substrate.

[0003] However, there are some problems with the prior art: however, after the injection molding screw melts the plastic particles or powder, the melted materials are easily attached to the inner wall of the barrel. Although the rotation of the injection molding screw can completely fit the inner wall of the barrel and rotate and transport the materials adhered to the inner wall of the barrel, the injection molding screw is easily concave after long-term use and excessive contact with the inner wall of the barrel. This causes the inner wall of the barrel to still easily retain and adhere to the melted materials, resulting in the inability to discharge the materials. It is necessary to manually disassemble the barrel for cleaning, which is time-consuming and labor-intensive, and has certain limitations. In addition, the melted materials that cannot be discharged in time are not only easy to harden and adhere to the inner wall of the barrel, but also easy to block the melted materials behind, resulting in the inability to quickly discharge the melted materials. At the same time, when the injection molding screw is started, the hardened materials are easy to collide with the injection molding screw, resulting in secondary damage to the injection molding screw, which has certain limitations. Therefore, we propose a screw and a screw injection molding machine based on laser cladding. Summary of the invention

[0004] In view of the problems existing in the prior art, the purpose of the present invention is to provide a screw and a screw injection molding machine based on laser cladding. Through the cooperation of the anti-retention component, the speed change component and the linkage component, different plastics processed in the barrel can be effectively processed, thereby effectively reducing the processing cost and avoiding the blockage of subsequent material discharge after the material hardens.

[0005] The present invention is implemented in this way: a laser cladding screw and a screw injection molding machine, comprising:

[0006] An injection molding screw, wherein the outer side of the injection molding screw is wrapped with a coating layer;

[0007] A workbench and a barrel, wherein a plurality of groups of support seats are fixedly installed at one end of the outer side of the barrel, and the support seats are fixedly connected to the upper surface of the workbench, a material storage barrel is arranged at one end of the workbench, a conical tube is connected to one end of the barrel, and a discharge pipe is connected to one end of the conical tube, and the discharge pipe is arranged above the material storage barrel, a screw driving mechanism is arranged at one end of the upper surface of the support seat, and the screw driving mechanism is fixedly connected to the injection screw, one end of the screw driving mechanism extends to the inside of the barrel, and the injection screw is rotatably installed inside the barrel through the screw driving mechanism;

[0008] Anti-retention components, wherein the anti-retention components are provided in multiple groups, and the multiple groups of anti-retention components are arranged in a circular shape and at equal intervals, the multiple groups of anti-retention components are composed of memory steel plates and vibration components, the inner wall of the barrel is provided with multiple groups of working grooves, and the anti-retention components are arranged in pairs with the working grooves, the memory steel plate is movably arranged at one end inside the working groove, and the memory steel plate and the other end inside the working groove form a vibration cavity, the multiple groups of vibration components are fixedly connected to the outer side of the barrel, and the vibration components are fixedly connected to the memory steel plate, so that the memory steel plate is deformed by the vibration components;

[0009] The memory steel plate is composed of a bonding steel plate and an extension steel plate fixedly connected at both ends of the bonding steel plate. The inner arc surface of the bonding steel plate is arranged in the same horizontal line as the inner wall of the barrel. One end of both sides of the working groove is provided with a steel plate guide groove, and the extension steel plate is slidably inserted in the steel plate guide groove. The middle part of the outer arc surface of the bonding steel plate is fixedly connected to the vibration component.

[0010] A linkage component, wherein the linkage component is arranged at one end of the injection screw near the discharge pipe, and the plurality of anti-retention components are fixedly connected to the linkage component, so that the plurality of anti-retention components are elastically movable inside the barrel through the linkage component;

[0011] A speed change assembly is transmission-connected with the linkage assembly, and the speed change assembly is rotationally installed inside the discharge pipe through the linkage assembly.

[0012] Optionally, the vibration component includes a trigger block and a pressure rod, the trigger block is movably connected to the linkage assembly, a sealing force transmission column is fixedly installed at one end of the pressure rod, a plurality of sealing grooves are opened on the outside of the barrel, and the sealing grooves are arranged in pairs with the working grooves, the sealing grooves are communicated with the inside of the working grooves, one end of the sealing force transmission column passes through the inside of the sealing groove to the inside of the working chamber, and a pulling plate is fixedly installed at one end of the sealing force transmission column, the pulling plate is fixedly installed in the middle part of the outer arc surface of the fitted steel plate, and the pulling plate is located inside the working chamber, an expansion sleeve is provided on the fixed sleeve on the outside of the pressure rod, an expansion slot is opened at the upper end of the sealing slot, a reset spring is arranged between the expansion sleeve and the inside of the expansion slot, an inclined slot is opened at one end of one side of the trigger block, another group of inclined slots are opened at one end of the outside of the pressure rod, and the two groups of inclined slots are arranged correspondingly.

[0013] Optionally, the linkage assembly includes a transmission column, a stabilizing column and multiple groups of drive rods, the transmission column is fixedly connected to one end of the injection screw, the stabilizing column is fixedly installed at one end inside the discharge pipe, the speed change assembly is arranged between the transmission column and the stabilizing column, the multiple groups of drive rods are arranged equidistantly in a ring shape, and the drive rods are fixedly connected to the speed change assembly, the outer sides of the multiple groups of drive rods are commonly fixedly connected with a connecting ring, the outer side of the discharge pipe is provided with an avoidance hole, and the discharge pipe is separated by the avoidance hole to form two groups of connecting pipes, the connecting ring is rotatably installed between the two groups of connecting pipes, and the ends of the multiple groups of drive rods on the same side and away from each other are fixedly installed with a connecting plate, and the trigger block is movably connected to the connecting plate.

[0014] Optionally, the speed shift assembly includes a transmission housing, a main drive gear and a speed shift switching mechanism, the transmission housing is rotatably installed between two groups of connecting tubes, one end of one group of connecting tubes is provided with a switching groove, and one end of the outer side of one group of connecting tubes is provided with an adjusting groove, the adjusting groove is communicated with the inside of the switching groove, the speed shift switching mechanism is arranged inside the adjusting groove, the speed shift switching mechanism is fixedly connected to the main drive gear, and the main drive gear is arranged to move horizontally inside the switching groove through the speed shift switching mechanism, a first driven gear and a second driven gear are respectively fixedly installed on both sides of the switching groove, the first driven gear and the second driven gear are staggered, the first driven gear and the second driven gear are both meshed and connected with the main drive gear, and the first driven gear and the second driven gear are both detachably connected to the transmission housing.

[0015] Optionally, the speed switching mechanism includes a bearing column and two groups of adjusting gears, the bearing column is fixedly installed at one end inside the switching groove, a control groove is opened at one end of the bearing column, a third screw rod is rotatably connected to one end inside the control groove, a threaded connection shell is threadedly connected to the outer side of the third screw rod, one end of the threaded connection shell is slidably installed inside the control groove, and the threaded connection shell is fixedly connected to the main driving gear, the two groups of adjusting gears are meshed with each other, and the two groups of adjusting gears are rotatably installed on one side inside the adjusting groove, one group of the adjusting gears is fixedly connected to the third screw rod, and a rotating button is fixedly installed on one side of the other group of adjusting gears.

[0016] Optionally, the rotating button is composed of a driving column and multiple groups of rotating rods, the driving column is fixedly connected to the middle part of one side of another group of adjusting gears, and one end of the driving column is rotatably installed on the other side of the adjusting groove, the multiple groups of rotating rods are arranged equidistantly in a ring shape, and the rotating rods are fixedly connected to the driving column, a torsion spring mechanism is provided at one end of the rotating rod, and one end of the multiple groups of rotating rods are movably connected to an extension rod through the torsion spring mechanism, and an arc-shaped sealing plate is clamped and connected along the edge of the adjusting groove.

[0017] Optionally, a groove is provided on one side of the transmission shell close to one of the groups of connecting shells, a docking base is fixedly installed at the center of one side inside the groove, a first synchronous wheel is rotatably connected to the middle part of one side of the docking base, and a second synchronous wheel is rotatably connected to one side of the first synchronous wheel, another group of second synchronous wheels and another group of first synchronous wheels are fixedly installed on one side of the first driven gear and the second driven gear, respectively, a synchronous belt is sleeved between the two groups of the first synchronous wheels and the two groups of the second synchronous wheels, and one group of the first synchronous wheels and one group of the second synchronous wheels are detachably connected to the docking base.

[0018] Optionally, an avoidance groove is provided on one side of the docking base, a square rod is fixedly installed at the center of one side of the avoidance groove, a transmission rod is rotatably connected to the center of one side of the main driving gear, a transmission hole is provided at the center of one side of one group of the first synchronous wheels and one group of the second synchronous wheels, one end of the transmission rod passes through the transmission hole, a square groove is provided at one end of the transmission rod, one end of the square rod is slidably installed in the square groove, two groups of docking rings are fixedly installed on the outside of the transmission rod, a docking groove is provided at the center of one side of one group of the first synchronous wheels and one group of the second synchronous wheels that are away from each other, and the docking groove and the docking ring are arranged correspondingly, a plurality of groups of docking protrusions are fixedly installed around the side where the two groups of docking rings are close to each other, and the plurality of groups of docking protrusions are arranged in a ring-shaped and equidistant manner, a docking groove is provided around the inside of the docking groove, and the docking protrusions are slidably inserted into the docking groove.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. Through the design of the coating layer wrapped around the outside of the injection molding screw, the coating layer can be formed using laser cladding technology, thereby laser cladding the coating layer on the surface of the screw and improving the shape structure of the screw to make the screw more wear-resistant.

[0021] 2. Through the cooperation of the designed anti-retention components and linkage components, the injection screw can remove materials from most areas of the inner wall of the barrel during operation, thereby further preventing the melted material from hardening and clogging the inner wall of the barrel, and also avoiding material waste.

[0022] 3. The working frequency of the anti-retention component can be changed through the designed speed change component. Therefore, when the injection molding screw processes plastics of different components, the working frequency of the anti-retention component can be adjusted accordingly according to the viscosity of the plastic, so as to better avoid the melted material from sticking to the inner wall of the barrel.

[0023] Further features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure provided by the present invention;

[0025] Figure 2 It is a schematic diagram of the injection molding screw provided by the present invention;

[0026] Figure 3 It is a schematic diagram of a conical cylinder provided by the present invention;

[0027] Figure 4 is a cross-sectional schematic diagram of a transmission column provided by the present invention;

[0028] Figure 5 is a schematic diagram of a transmission rod provided by the present invention;

[0029] Figure 6 The present invention provides Figure 5 A magnified schematic diagram of point A;

[0030] Figure 7 It is a schematic diagram of the speed change switching mechanism provided by the present invention;

[0031] Figure 8 It is a schematic diagram of the barrel provided by the present invention;

[0032] Fig. 9 It is a schematic diagram of the working tank provided by the present invention;

[0033] Fig.10 The present invention provides Fig. 9 An enlarged schematic diagram of point B;

[0034] Fig.11 The present invention provides Fig. 9 An enlarged schematic diagram of point C;

[0035] Fig.12 It is a schematic diagram of the memory steel plate provided by the present invention.

[0036] In the figure: 1. screw drive mechanism; 2. support seat; 3. workbench; 4. storage barrel; 5. speed change assembly; 6. discharge pipe; 7. injection screw; 8. tapered tube; 9. linkage assembly; 10. anti-retention assembly; 11. barrel; 12. auxiliary bracket; 13. transmission rod; 14. docking ring; 15. docking protrusion; 16. docking groove; 17. square rod; 18. driving column; 19. adjusting rod; 20. first screw rod; 21. threaded shell; 22. second screw rod; 23. limit block; 24. working groove; 25. steel plate guide groove; 26. collision plate; 27. connecting ring; 28. arc sealing plate; 101. memory steel plate; 1011. extension steel plate; 1012. bonding steel plate; 102. vibration component; 1021. touch The first and second gears are as follows: the first gear is a gear, the second gear is a gear, the second gear is a gear, the second gear is a gear, the first ... first gear is a gear, the second gear is a gear, the second gear is a gear, the second gear is a gear, the second gear is a gear, the second gear is a gear, the second gear is a gear, the second gear is a gear, the second gear is a gear, the second gear is DETAILED DESCRIPTION

[0037] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples and described in detail with reference to the accompanying drawings.

[0038] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless otherwise specifically stated.

[0039] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

[0040] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0041] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0042] The structure of the present invention is described in detail below in conjunction with the accompanying drawings.

[0043] like Figures 1 to 12 As shown, a laser cladding screw and a screw injection molding machine provided by an embodiment of the present invention include: an injection molding screw 7, the outer side of the injection molding screw 7 is wrapped with a coating layer; a workbench 3 and a barrel 11, one end of the outer side of the barrel 11 is fixedly installed with multiple groups of support seats 2, and the support seats 2 are fixedly connected to the upper surface of the workbench 3, one end of the workbench 3 is provided with a storage barrel 4, one end of the barrel 11 is connected with a tapered tube 8, and one end of the tapered tube 8 is connected with a discharge pipe 6, and the discharge pipe 6 is correspondingly arranged above the storage barrel 4, one end of the upper surface of the support seat 2 is provided with a screw driving mechanism 1, and the screw driving mechanism 1 is fixedly connected to the injection molding screw 7, one end of the screw driving mechanism 1 extends to the inside of the barrel 11, and the injection molding screw 7 is rotatably installed in the barrel 11 through the screw driving mechanism 1;

[0044] like Figure 2 As described above, by designing that the outer side of the injection molding screw 7 is wrapped with a coating layer, the coating layer is formed by laser cladding technology, thereby achieving the effect of processing the surface of the injection molding screw 7, so that the surface shape structure of the injection molding screw 7 is changed, so that the injection molding screw 7 will be more wear-resistant, thereby effectively improving the service life of the injection molding screw 7.

[0045] Specifically, Figure 1 As shown, an auxiliary bracket 12 is fixedly installed at the bottom of the discharge pipe 6, and the auxiliary bracket 12 is fixedly connected to the upper surface of the workbench 3. Therefore, multiple groups of support seats 2 and auxiliary brackets 12 cooperate with each other to stably support the barrel 11 and prevent the injection screw 7 in the barrel 11 from shaking during operation.

[0046] The anti-retention assembly 10 is provided with multiple groups, and the multiple groups of anti-retention assemblies 10 are arranged in a ring-shaped and equidistant manner. The multiple groups of anti-retention assemblies 10 are composed of a memory steel plate 101 and a vibration component 102. The inner wall of the barrel 11 is provided with multiple groups of working grooves 24, and the anti-retention assembly 10 and the working grooves 24 are arranged in pairs. The memory steel plate 101 is movably arranged at one end inside the working groove 24, and the memory steel plate 101 and the other end inside the working groove 24 form a vibration cavity, and the multiple groups of vibration components 102 are fixedly connected to the outer side of the barrel 11, and the vibration component 102 is fixedly connected to the memory steel plate 101, so that the memory steel plate 101 is deformed by the vibration component 102;

[0047] like Figures 1 to 12As shown, due to the design of the memory steel plate 101 being deformed by the vibration component 102, the memory steel plate 101 can be bent toward the inside of the working cavity of the surface by the vibration component 102, and then rebound, and the instantaneous force generated can effectively vibrate the bonded material to fall or change the bonding strength between the bonded material and the memory steel plate 101, thereby effectively avoiding excessive retention of material in the barrel 11, causing material waste and blocking the normal discharge of melted material in subsequent work, and can effectively avoid the material from colliding with the injection screw 7 for a long time after hardening, resulting in slight damage to the injection screw 7 and affecting its service life.

[0048] The linkage assembly 9 is arranged at one end of the injection screw 7 close to the discharge pipe 6, and the plurality of anti-retention assemblies 10 are fixedly connected to the linkage assembly 9, so that the plurality of anti-retention assemblies 10 are elastically movable inside the barrel 11 through the linkage assembly 9;

[0049] like Figures 1 to 12 As shown, through the design that multiple groups of anti-retention components 10 are fixedly connected to the linkage component 9, the linkage component 9 generates power when the injection screw 7 works, thereby transmitting the anti-retention component 10, so that the anti-retention component 10 can perform material removal work. Therefore, when the linkage component 9 controls the anti-retention component 10 to perform elastic activities, there is no need to set up additional electric drive equipment on the workbench 3, thereby further reducing the cost of material processing inside the barrel 11.

[0050] The speed change assembly 5 is transmission-connected with the linkage assembly 9, and the speed change assembly 5 is rotationally mounted inside the discharge pipe 6 through the linkage assembly 9;

[0051] like Figures 1 to 12 As shown, through the design of the transmission connection between the speed change component 5 and the linkage component 9, the speed change component 5 can change the rotation frequency of the injection screw 7 and the linkage component 9, thereby indirectly changing the working frequency of the multiple groups of anti-retention components 10. Therefore, according to the plastics with different viscosities processed by the injection screw 7, the working frequency of the anti-retention component 10 can be adjusted accordingly, thereby better effectively processing the material adhered to the inner wall of the barrel 11.

[0052] Furthermore, the memory steel plate 101 is composed of a bonding steel plate 1012 and an extension steel plate 1011 fixedly connected at both ends of the bonding steel plate 1012. The inner arc surface of the bonding steel plate 1012 is arranged on the same horizontal line as the inner wall of the barrel 11. A steel plate guide groove 25 is provided at one end of both sides of the working groove 24, and the extension steel plate 1011 is slidably inserted into the steel plate guide groove 25. The middle part of the outer arc surface of the bonding steel plate 1012 is fixedly connected to the vibration component 102.

[0053] like Figures 9 to 12As shown, by designing that the inner arc surface of the bonding steel plate 1012 is arranged at the same horizontal line as the inner wall of the barrel 11, the bonding steel plate 1012 can fill the unevenness of the inner wall of the barrel 11 caused by the opening of the working groove 24, so as to prevent the melted material from being unable to contact the injection screw 7;

[0054] For example, the above-mentioned bonding steel plate 1012 and the two groups of extension steel plates 1011 are integrated into a finished product, and when the bonding steel plate 1012 is bent toward the inside of the working chamber through the vibration component 102, the memory steel plate 101 is more stable as a whole, and the memory steel plate 101 is prevented from breaking. At the same time, the memory steel plate 101 itself has elasticity, and Fig.12 It can be seen that the bending degree of the memory steel plate 101 is not large, so the memory steel plate 101 can quickly restore to its initial state. After the memory steel plate 101 bends upward, it will bend back with a momentary force, thereby generating a large vibration force. Therefore, the material bonded to the inner arc surface of the memory steel plate 101 can be effectively shaken off;

[0055] Specifically, the steel plate guide groove 25 provided above can better prevent the memory steel plate 101 from being misaligned during the upward bending process.

[0056] Furthermore, the vibration component 102 includes a trigger block 1021 and a pressure rod 1022, the trigger block 1021 is movably connected to the linkage assembly 9, a sealing force transmission column 1026 is fixedly installed at one end of the pressure rod 1022, a plurality of sealing grooves are provided on the outer side of the barrel 11, and the sealing grooves are arranged in pairs with the working grooves 24, the sealing grooves are communicated with the inside of the working grooves 24, one end of the sealing force transmission column 1026 passes through the inside of the sealing groove to the inside of the working chamber, and a pulling plate 1 is fixedly installed at one end of the sealing force transmission column 1026 027, the pulling plate 1027 is fixedly installed in the middle of the outer arc surface of the fitting steel plate 1012, and the pulling plate 1027 is located inside the working chamber, the outer fixed sleeve of the pressure rod 1022 is provided with an extension sleeve 1024, the upper end of the sealing groove is provided with an extension slot, and a return spring 1025 is provided between the extension sleeve 1024 and the inside of the extension slot, one end of one side of the trigger block 1021 is provided with an inclined slot, and one end of the outer side of the pressure rod 1022 is provided with another set of inclined slots, and the two sets of inclined slots are arranged correspondingly;

[0057] like Figures 9 to 12 As shown, the design of two sets of inclined grooves being arranged correspondingly, for example: Figure 8When rotating counterclockwise, the trigger block 1021 contacts the pressure rod 1022, and through tilting and squeezing, the pressure rod 1022 moves upward, so that the pressure rod 1022 cooperates with the sealing force transmission column 1026 and the pulling plate 1027, so that the middle part of the bonding steel plate 1012 bends upward. At the same time, when the trigger block 1021 continues to rotate counterclockwise, the two sets of inclined grooves will not contact each other for a moment, and the pulling force of the reset spring 1025 and the elasticity of the bonding steel plate 1012 can make the bonding steel plate 1012 reset downward in an instant. The generated inertia can effectively shake off the bonded material.

[0058] Specifically, Figures 8 to 12 As shown, a collision plate 26 is fixedly installed at one end of the outer side of the extension sleeve 1024, and a limit block 23 is correspondingly arranged at the bottom of the collision plate 26. A plurality of placement grooves are arranged on the outer side of the barrel 11, and the placement grooves are arranged correspondingly to the collision plate 26. A threaded shell 21 is arranged inside the placement groove, and a second screw rod 22 is threadedly connected inside the threaded shell 21, and the second screw rod 22 is fixedly connected to the limit block 23.

[0059] Through the design of the collision plate 26, the limit block 23, the threaded shell 21 and the second screw rod 22 set as above, when the memory steel plate 101 is reset downward instantly, in order to avoid the memory steel plate 101 from generating too much rebound force instantly, which causes the memory steel plate 101 to reset downward and causes the inner arc surface and the inner wall of the barrel 11 to be not in the same horizontal plane, the limit block 23 and the collision plate 26 can effectively limit the memory steel plate 101, thereby further avoiding the memory steel plate 101 and the injection screw 7 from having too much contact instantly, resulting in excessive friction and damage to both parties.

[0060] Further, the linkage assembly 9 includes a transmission column 903, a stabilizing column 902 and multiple groups of driving rods 901, the transmission column 903 is fixedly connected to one end of the injection screw 7, the stabilizing column 902 is fixedly installed at one end inside the discharge pipe 6, the speed change assembly 5 is arranged between the transmission column 903 and the stabilizing column 902, the multiple groups of driving rods 901 are arranged equidistantly in a ring shape, and the driving rods 901 are fixedly connected to the speed change assembly 5, the outer sides of the multiple groups of driving rods 901 are commonly fixedly connected with a connecting ring 27, the outer side of the discharge pipe 6 is provided with an avoidance hole, and the discharge pipe 6 is separated by the avoidance hole to form two groups of connecting pipes, the connecting ring 27 is rotatably installed between the two groups of connecting pipes, the ends of the multiple groups of driving rods 901 on the same side and away from each other are fixedly installed with a connecting plate 904, and the trigger block 1021 is movably connected to the connecting plate 904;

[0061] like Figures 1 to 10As shown, through the design of fixed connection between the transmission column 903 and one end of the injection screw 7, when the injection screw 7 rotates, the transmission column 903 and the speed change assembly 5 can be used to make the multiple groups of connecting plates 904 drive the trigger block 1021 to rotate, thereby squeezing the pressure rod 1022, so as to achieve the effect of shaking off the material from the memory steel plate 101;

[0062] Specifically, Fig. 9 As shown, a threaded hole is opened on the upper surface of the trigger block 1021, and a first screw rod 20 is connected to the inside of the threaded hole through a thread, an adjusting rod 19 is fixedly installed on the upper end of the first screw rod 20, and a fixing seat 1023 is rotatably connected to the lower end of the outer side of the adjusting rod 19, the fixing seat 1023 is fixedly connected to the connecting plate 904, and the adjusting rod 19 passes through the bottom of the connecting plate 904.

[0063] Through the design of the first screw rod 20 and the fixed seat 1023 designed as above, according to the viscosity of the processed material, based on the adjustment of the speed change component 5, the contact area between the trigger block 1021 and the pressure rod 1022 can be adjusted again through the cooperation of the first screw rod 20 and the threaded hole, so that the rebound distance generated instantly by the memory steel plate 101 can be changed, so that the inertia force of the memory steel plate 101 to shake off the material can be further changed accordingly according to the viscosity of different processed materials, thereby effectively improving the practicality of the anti-retention component 10.

[0064] Furthermore, the speed change assembly 5 includes a transmission housing 501, a main driving gear 509 and a speed change switching mechanism 502. The transmission housing 501 is rotatably installed between two groups of connecting pipes, one end of one group of connecting pipes is provided with a switching groove, and one end of the outer side of one group of connecting pipes is provided with an adjustment groove, and the adjustment groove is communicated with the inside of the switching groove. The speed change switching mechanism 502 is arranged inside the adjustment groove, and the speed change switching mechanism 502 is fixedly connected to the main driving gear 509, and the main driving gear 509 is arranged to move horizontally inside the switching groove through the speed change switching mechanism 502. The first driven gear 507 and the second driven gear 509 are fixedly installed on both sides of the switching groove. 08, the first driven gear 507 and the second driven gear 508 are staggered, the first driven gear 507 and the second driven gear 508 are both meshed and connected with the main driving gear 509, and the first driven gear 507 and the second driven gear 508 are both detachably connected with the transmission housing 501; a groove is provided on one side of the transmission housing 501 close to one of the groups of connecting housings, a docking base 503 is fixedly installed at the center of one side of the groove, a first synchronous wheel 504 is rotatably connected to the middle part of one side of the docking base 503, and a second synchronous wheel 506 is rotatably connected to one side of the first synchronous wheel 504, the first driven gear 507 and the second driven gear 508 are detachably connected to the transmission housing 501; a groove is provided on one side of the transmission housing 501 close to one of the groups of connecting housings, a docking base 503 is fixedly installed at the center of one side of the groove, a first synchronous wheel 504 is rotatably connected to the middle part of one side of the docking base 503, and a second synchronous wheel 506 is rotatably connected to one side of the first synchronous wheel 504, Another set of second synchronous wheels 506 and another set of first synchronous wheels 504 are fixedly installed on one side, and a synchronous belt 505 is sleeved between the two sets of first synchronous wheels 504 and the two sets of second synchronous wheels 506. One set of first synchronous wheels 504 and one set of second synchronous wheels 506 are detachably connected to the docking base 503; an avoidance groove is opened on one side of the docking base 503, and a square rod 17 is fixedly installed at the center of one side of the avoidance groove. A transmission rod 13 is rotatably connected to the center of one side of the main driving gear 509, and a transmission hole is opened at the center of one side of one set of first synchronous wheels 504 and one set of second synchronous wheels 506. The transmission rod 13 is The end is arranged inside the transmission hole, a square groove is opened at one end of the transmission rod 13, and one end of the square rod 17 is slidably installed inside the square groove. Two groups of docking rings 14 are fixedly installed on the outside of the transmission rod 13, and a docking groove 16 is opened at the center of one side away from each other of one group of first synchronous wheels 504 and one group of second synchronous wheels 506, and the docking groove 16 is correspondingly arranged with the docking ring 14. Multiple groups of docking protrusions 15 are fixedly installed around the side where the two groups of docking rings 14 are close to each other, and the multiple groups of docking protrusions 15 are arranged in annular equidistant manner, and a docking groove is opened around the inside of the docking groove 16, and the docking protrusion 15 is slidably inserted into the docking groove;

[0065] like Figures 1 to 7As shown, the main driving gear 509 is respectively meshed with the first driven gear 507 and the second driven gear 508, and the first driven gear 507 and the second driven gear 508 can be fixedly connected to the docking base 503. When processing plastic with high viscosity, the first driven gear 507 can be docked and meshed with the main driving gear 509, so that the triggering frequency of the memory steel plate 101 becomes higher. When processing plastic with low viscosity, the second driven gear 508 can be docked and meshed with the main driving gear 509, so that the triggering frequency of the memory steel plate 101 becomes lower, so that the memory steel plate 101 can be better and more reasonably utilized to shake off the material adhered to the inner wall of the barrel 11;

[0066] It is worth noting that by reasonably adjusting the working frequencies of the memory steel plate 101 according to plastics of different viscosities, the memory steel plate 101 can be effectively used to avoid the memory steel plate 101 being in a high-frequency working state for a long time, which results in a shorter service life.

[0067] like Figures 1 to 7 As shown, by the design that the docking protrusion 15 is slidably inserted into the docking groove, when the main driving gear 509 is controlled to select to mesh with the first driven gear 507 and the second driven gear 508, one group of the first synchronous wheels 504 and one group of the second synchronous wheels 506 are switched with each other through the docking ring 14 to be fixedly connected with the docking base 503, thereby effectively preventing the main driving gear 509 from driving the first driven gear 507 and the second driven gear 508 to rotate at the same time.

[0068] It is worth mentioning that due to the design of the square rod 17, when one group of the first synchronization wheels 504 and one group of the second synchronization wheels 506 are interchangeably fixedly connected to the docking base 503, one group of the first synchronization wheels 504 and one group of the second synchronization wheels 506 can control the rotation of the transmission rod 13 through the docking ring 14, and the transmission rod 13 can control the rotation of the docking base 503 through the characteristics of the square rod 17, thereby achieving the effect of multiple groups of memory steel plates 101 working at the same time.

[0069] Furthermore, the speed switching mechanism 502 includes a bearing column 5022 and two sets of adjusting gears 5024. The bearing column 5022 is fixedly installed at one end inside the switching slot. A control slot is opened at one end of the bearing column 5022. A third screw rod 5023 is rotatably connected to one end inside the control slot. A threaded connection shell 5021 is threadedly connected to the outer side of the third screw rod 5023. One end of the threaded connection shell 5021 is slidably installed inside the control slot, and the threaded connection shell 5021 is fixedly connected to the main driving gear 509. The two sets of adjusting gears 5024 are meshed with each other, and the two sets of adjusting gears 5024 are rotatably installed on one side inside the adjusting slot. One set of adjusting gears 5024 is connected to the The third screw rod 5023 is fixedly connected, and a rotating button is fixedly installed on one side of another group of adjusting gears 5024; the rotating button is composed of a driving column 18 and multiple groups of rotating rods 5025, the driving column 18 is fixedly connected to the middle part of one side of another group of adjusting gears 5024, and one end of the driving column 18 is rotatably installed on the other side of the adjusting groove, the multiple groups of rotating rods 5025 are arranged in a ring with equal distances, and the rotating rods 5025 are fixedly connected to the driving column 18, one end of the rotating rod 5025 is provided with a torsion spring mechanism 5026, and one end of the multiple groups of rotating rods 5025 are movably connected to an extension rod 5027 through the torsion spring mechanism 5026, and an arc-shaped sealing plate 28 is connected along the edge of the adjusting groove;

[0070] like Figures 1 to 7 As shown, since one end of the multiple groups of rotating rods 5025 are movably connected to the extension rod 5027 through the torsion spring mechanism 5026, when it is necessary to adjust the meshing object of the main driving gear 509, by removing the arc-shaped sealing plate 28, the extension rod 5027 automatically rotates and extends under the action of the torsion spring mechanism 5026, so that it is convenient for the staff to rotate the third screw rod 5023 to control the position of the main driving gear 509. Since the extension rod 5027 is connected to the torsion spring mechanism 5026, when the third screw rod 5023 is rotated for several weeks, the multiple groups of extension rods 5027 can be automatically rotated and extended through the torsion spring mechanism 5026;

[0071] It is worth noting that the arc-shaped sealing plate 28 is engaged with the inner edge of the adjusting groove, thereby effectively preventing the melted plastic from entering the adjusting groove when being discharged, thereby affecting the extension rod 5027 controlling the rotation of the rotating rod 5025 .

[0072] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0073] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A laser cladding screw and a screw injection molding machine, characterized in that: include: An injection molding screw (7), wherein the outer side of the injection molding screw (7) is wrapped with a coating layer; A workbench (3) and a barrel (11), wherein one end of the outer side of the barrel (11) is fixedly mounted with a plurality of support seats (2), and the support seats (2) are fixedly connected to the upper surface of the workbench (3); one end of the workbench (3) is provided with a material storage barrel (4); one end of the barrel (11) is connected with a conical tube (8), and one end of the conical tube (8) is connected with a discharge pipe (6), and the discharge pipe (6) is correspondingly arranged above the material storage barrel (4); one end of the upper surface of the support seat (2) is provided with a screw drive mechanism (1), and the screw drive mechanism (1) is fixedly connected to an injection screw (7); one end of the screw drive mechanism (1) extends into the interior of the barrel (11), and the injection screw (7) is rotatably mounted in the interior of the barrel (11) through the screw drive mechanism (1); An anti-retention component (10), wherein the anti-retention component (10) is provided with a plurality of groups, and the plurality of groups of anti-retention components (10) are arranged in a ring-shaped manner and at equal intervals, the plurality of groups of anti-retention components (10) are composed of a memory steel plate (101) and a vibration component (102), the inner wall of the barrel (11) is provided with a plurality of groups of working grooves (24), and the anti-retention component (10) and the working grooves (24) are arranged in pairs, the memory steel plate (101) is movably arranged at one end inside the working groove (24), and a vibration cavity is formed between the memory steel plate (101) and the other end inside the working groove (24), the plurality of groups of vibration components (102) are fixedly connected to the outer side of the barrel (11), and the vibration component (102) is fixedly connected to the memory steel plate (101), so that the memory steel plate (101) is deformed by the vibration component (102); The memory steel plate (101) is composed of a bonding steel plate (1012) and an extension steel plate (1011) fixedly connected at both ends of the bonding steel plate (1012); the inner arc surface of the bonding steel plate (1012) is arranged on the same horizontal line as the inner wall of the barrel (11); a steel plate guide groove (25) is provided at one end of both sides of the working groove (24), and the extension steel plate (1011) is slidably inserted into the steel plate guide groove (25); the middle part of the outer arc surface of the bonding steel plate (1012) is fixedly connected to the vibration component (102); A linkage assembly (9), wherein the linkage assembly (9) is arranged at one end of the injection screw (7) close to the discharge pipe (6), and the plurality of groups of anti-retention assemblies (10) are fixedly connected to the linkage assembly (9), so that the plurality of groups of anti-retention assemblies (10) can be elastically moved inside the barrel (11) through the linkage assembly (9); A speed change assembly (5), wherein the speed change assembly (5) is transmission-connected to the linkage assembly (9), and the speed change assembly (5) is rotationally mounted inside the discharge pipe (6) via the linkage assembly (9).

2. A laser cladding screw and a screw injection molding machine according to claim 1, characterized in that: The vibration component (102) comprises a trigger block (1021) and a pressure rod (1022), wherein the trigger block (1021) is movably connected to the linkage assembly (9), and a sealing force transmission column (1026) is fixedly installed at one end of the pressure rod (1022), and a plurality of sealing grooves are provided on the outer side of the barrel (11), and the sealing grooves and the working grooves (24) are arranged in pairs, and the sealing grooves are communicated with the inside of the working groove (24), and one end of the sealing force transmission column (1026) passes through the inside of the sealing groove to the inside of the working chamber, and a pulling plate (1026) is fixedly installed at one end of the sealing force transmission column (1026). 1027), the pulling plate (1027) is fixedly installed on the middle part of the outer arc surface of the bonding steel plate (1012), and the pulling plate (1027) is located inside the working chamber, the outer fixed sleeve of the pressure rod (1022) is provided with an expansion sleeve (1024), the upper end of the sealing groove is provided with an expansion slot, and a reset spring (1025) is provided between the expansion sleeve (1024) and the inside of the expansion slot, one end of one side of the trigger block (1021) is provided with an inclined slot, and one end of the outer side of the pressure rod (1022) is provided with another group of inclined slots, and the two groups of inclined slots are arranged correspondingly.

3. The laser cladding screw and screw injection molding machine according to claim 2, characterized in that: The linkage assembly (9) comprises a transmission column (903), a stabilizing column (902) and a plurality of drive rods (901), wherein the transmission column (903) is fixedly connected to one end of the injection screw (7), the stabilizing column (902) is fixedly installed at one end inside the discharge pipe (6), the speed change assembly (5) is arranged between the transmission column (903) and the stabilizing column (902), the plurality of drive rods (901) are arranged in a circular shape and at equal distances, and the drive rods (901) and the speed change assembly (5) are connected to each other. ) are fixedly connected, a connecting ring (27) is commonly fixedly connected to the outer side of the multiple groups of driving rods (901), an avoidance hole is opened on the outer side of the discharge pipe (6), and the discharge pipe (6) is separated by the avoidance hole to form two groups of connecting pipes, the connecting ring (27) is rotatably installed between the two groups of connecting pipes, and a connecting plate (904) is fixedly installed on the same side of the multiple groups of driving rods (901) and at one end away from each other, and the trigger block (1021) is movably connected to the connecting plate (904).

4. The laser cladding screw and screw injection molding machine according to claim 3, characterized in that: The speed change assembly (5) comprises a transmission housing (501), a main driving gear (509) and a speed change switching mechanism (502). The transmission housing (501) is rotatably mounted between two groups of connecting pipes. One end of one group of connecting pipes is provided with a switching groove. One end of the outer side of one group of connecting pipes is provided with an adjustment groove. The adjustment groove is communicated with the inside of the switching groove. The speed change switching mechanism (502) is arranged inside the adjustment groove. The speed change switching mechanism (502) is fixedly connected to the main driving gear (509). The main driving gear (509) is connected to the main driving gear (509) by a screw thread. The speed change switching mechanism (502) is arranged in a horizontally movable manner inside the switching groove, and a first driven gear (507) and a second driven gear (508) are fixedly installed on both sides of the switching groove, respectively. The first driven gear (507) and the second driven gear (508) are arranged in a staggered manner, and the first driven gear (507) and the second driven gear (508) are both meshed and connected with the main driving gear (509), and the first driven gear (507) and the second driven gear (508) are both detachably connected to the transmission housing (501).

5. The laser cladding screw and screw injection molding machine according to claim 4, characterized in that: The speed change switching mechanism (502) comprises a bearing column (5022) and two groups of adjusting gears (5024), wherein the bearing column (5022) is fixedly mounted at one end inside the switching slot, and a control slot is provided at one end of the bearing column (5022), and a third screw rod (5023) is rotatably connected to one end inside the control slot, and a threaded connection shell (5021) is threadedly connected to the outer side of the third screw rod (5023), and one end of the threaded connection shell (5021) is slidably mounted inside the control slot, and the threaded connection shell (5021) is fixedly connected to the main driving gear (509), and the two groups of adjusting gears (5024) are meshed with each other, and the two groups of adjusting gears (5024) are rotatably mounted on one side inside the adjusting slot, wherein one group of the adjusting gears (5024) is fixedly connected to the third screw rod (5023), and a rotating button is fixedly mounted on one side of the other group of the adjusting gears (5024).

6. The laser cladding screw and screw injection molding machine according to claim 5, characterized in that: The rotary button is composed of a driving column (18) and a plurality of rotating rods (5025), wherein the driving column (18) is fixedly connected to the middle part of one side of another group of adjusting gears (5024), and one end of the driving column (18) is rotatably mounted on the other side of the adjusting groove, the plurality of rotating rods (5025) are arranged in a ring-shaped manner and are equidistant, and the rotating rods (5025) are fixedly connected to the driving column (18), a torsion spring mechanism (5026) is arranged at one end of the rotating rod (5025), and one end of the plurality of rotating rods (5025) are movably connected to an extension rod (5027) through the torsion spring mechanism (5026), and an arc-shaped sealing plate (28) is snap-fitted along the edge of the adjusting groove.

7. The laser cladding screw and screw injection molding machine according to claim 6, characterized in that: A groove is provided on one side of the transmission housing (501) close to one of the groups of connecting housings, a docking base (503) is fixedly installed at the center of one side of the groove, a first synchronous wheel (504) is rotatably connected to the middle of one side of the docking base (503), and a second synchronous wheel (506) is rotatably connected to one side of the first synchronous wheel (504), another group of second synchronous wheels (506) and another group of first synchronous wheels (504) are fixedly installed on one side of the first driven gear (507) and the second driven gear (508), respectively, a synchronous belt (505) is sleeved between the two groups of the first synchronous wheels (504) and the two groups of the second synchronous wheels (506), and one group of the first synchronous wheels (504) and one group of the second synchronous wheels (506) are detachably connected to the docking base (503).

8. The laser cladding screw and screw injection molding machine according to claim 7, characterized in that: A side of the docking base (503) is provided with an avoidance groove, a square rod (17) is fixedly installed at the center of one side of the avoidance groove, a transmission rod (13) is rotatably connected to the center of one side of the main driving gear (509), a transmission hole is provided at the center of one side of one group of the first synchronous wheels (504) and a transmission hole is provided at one end of the transmission rod (13) through the transmission hole, a square groove is provided at one end of the transmission rod (13), one end of the square rod (17) is slidably installed in the square groove, and the outer side of the transmission rod (13) is provided with a square groove. Two groups of docking rings (14) are fixedly installed on the side, and a docking groove (16) is provided at the center of the side away from each other of one group of the first synchronous wheels (504) and one group of the second synchronous wheels (506), and the docking groove (16) and the docking ring (14) are arranged correspondingly, and a plurality of groups of docking protrusions (15) are fixedly installed around the side close to each other of the two groups of the docking rings (14), and the plurality of groups of docking protrusions (15) are arranged in an annular shape with equal distances, and a docking groove is provided around the inside of the docking groove (16), and the docking protrusions (15) are slidably inserted in the docking groove.

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