Multi-station splicing type injection mold and method

Abstract

The invention belongs to the technical field of forming of plastic models, and discloses a multi-station splicing type injection mold and method.The injection mold comprises a dust suction hood and a driving assembly, brackets are fixedly connected to the two sides of the dust suction hood, sliding grooves are formed in the two sides of the inner wall of the dust suction hood, reciprocating lead screws are arranged in the sliding grooves, and the reciprocating lead screws are connected with the driving assembly; the two ends of the reciprocating lead screw are rotationally connected with the corresponding brackets correspondingly, sliding blocks are arranged on the outer wall of the reciprocating lead screw in a matched mode, and a cleaning brush is arranged in the dust collection cover. According to the special-shaped mold cleaning device, the cleaning brush is installed in the liftable dust suction cover and matched with station rotation of the installation table, the position can be adjusted along with mold station switching, it is ensured that the cleaning assembly is accurately aligned with molds at different stations, all cavity areas are covered, and the cleaning brush can penetrate into dead corners of special-shaped molds through the combined action of transverse movement and autorotation; the problem that a fixed cleaning device is not thorough in cleaning is solved, and the subsequent injection molding quality is guaranteed.

Description

Technical Field

[0001] The present invention relates to the field of plastic model molding, and more particularly to a multi-station splicing injection mold and a method thereof. Background Art

[0002] In the production process of multi-station splicing injection molds, the cleanliness of the mold cavity directly affects product quality and production efficiency.

[0003] Currently, cleaning multi-station spliced ​​injection molds primarily relies on manual labor or fixed cleaning devices. Manual cleaning requires operators to wipe the mold surface and cavity between station changes, a labor-intensive and inefficient process that struggles to adapt to high-speed production. Especially during continuous multi-station operation, manual cleaning can lead to production interruptions and reduced equipment utilization.

[0004] Some molds that use fixed cleaning devices have fixed cleaning components, which can only clean a specific area of ​​the mold at a specific station. This makes them unsuitable for the dynamic switching requirements of multi-station molds. When the mold station rotates and switches, the relative position of the cleaning device and the mold shifts, and the cleaning range cannot reach all cavity areas. This is especially true for complex cavities such as special-shaped molds. Fixed cleaning brushes cannot reach deep into corners, and residual impurities will continue to affect the quality of subsequent injection molding. Summary of the Invention

[0005] This application aims to solve at least one of the technical problems existing in the prior art. To this end, this application proposes a multi-station splicing injection mold and method, in which a cleaning brush is installed in a liftable dust cover. The cleaning brush rotates with the station of the mounting table and can be adjusted with the mold station switching. The combined action of lateral movement and rotation enables the cleaning brush to penetrate deep into the blind spots of special-shaped molds and, in conjunction with a vacuum cleaner, promptly remove impurities, thus solving the problem of incomplete cleaning with fixed cleaning devices and ensuring the quality of subsequent injection molding.

[0006] In order to solve the above technical problems, the present invention provides a multi-station splicing injection mold, including a dust collection hood and a driving assembly, wherein both sides of the dust collection hood are fixedly connected to a bracket, both sides of the inner wall of the dust collection hood are provided with a slide groove, and a reciprocating screw rod is provided in the slide groove, and both ends of the reciprocating screw rod are respectively rotatably connected to the corresponding bracket, and the outer wall of the reciprocating screw rod is adapted to be equipped with a sliding slider, a cleaning brush is provided in the dust collection hood, the inner wall of the cleaning brush is fixedly connected to a rotating shaft, and both ends of the rotating shaft are respectively rotatably connected to the slider, and the end of the rotating shaft is fixedly connected to a first bevel gear, one of the outer walls of the reciprocating screw rods is provided with a second bevel gear and a second rotating sleeve, the first bevel gear is meshed with the second bevel gear, one end of the second rotating sleeve is rotatably connected to the slider, and the other end of the second rotating sleeve is fixedly connected to the second bevel gear, the outer wall of the reciprocating screw rod is provided with a plurality of guide grooves, and the inner wall of the second bevel gear is fixedly connected with a plurality of protrusions, and the protrusion is slidably connected to the inner wall of the guide groove, and the driving assembly is used to drive the two reciprocating screw rods to rotate.

[0007] Furthermore, the drive assembly includes a machine base, a second motor and two synchronous wheels, the two synchronous wheels are respectively fixedly connected to the corresponding reciprocating screw ends, the two synchronous wheels are connected by a synchronous belt transmission, the machine base is fixedly connected to the outer wall of the bracket, the second motor is fixedly connected to the outer wall of the machine base, and the output end of the second motor is fixedly connected to one of the reciprocating screw ends.

[0008] Furthermore, the multi-station splicing injection mold also includes a base, the top of the base is fixedly connected to a support ring, the top of the support ring is fixedly connected to a support ring, the outer wall of the support ring is fixedly connected to an external ring, and the inner wall of the support ring is rotatably connected to a mounting platform.

[0009] Furthermore, two support rods are fixedly connected to the top of the support ring, the outer walls of the support rods are slidably connected to the injection top mold, the outer walls of the support rods are fixedly connected to the mounting plate, the top of the mounting plate is fixedly connected to a hydraulic rod, the output end of the hydraulic rod passes through the mounting plate and extends to the bottom of the plate, the output end of the hydraulic rod is fixedly connected to the injection top mold, the top of the mounting table is fixedly connected to a bottom mold base, and the top of the bottom mold base is fixedly connected to the bottom mold mold by bolts.

[0010] Furthermore, a fixing sleeve is provided on the inner wall of the base, a support plate is fixedly connected to the outer wall of the fixing sleeve, the ends of the support plate are respectively fixedly connected to the inner wall of the base, the inner wall of the fixing sleeve is fixedly connected to the first motor, the output end of the first motor is fixedly connected to the drive shaft, the end of the drive shaft passes through the mounting platform and is fixedly connected thereto, the top of the drive shaft passes through the injection molding top mold and is slidably connected thereto, and the top of the drive shaft passes through the mounting plate and is fixedly connected thereto.

[0011] Furthermore, the outer wall of the drive shaft is rotatably connected to a first rotating sleeve, the outer wall of the first rotating sleeve is fixedly connected to a bracket, the bottom of the bracket is fixedly connected to an external ring, the top of the bracket is fixedly connected to a cylinder, the output end of the cylinder passes through the bracket and extends to below it, the output end of the cylinder is fixedly connected to a connecting frame, and the bottom of the connecting frame is fixedly connected to the dust hood.

[0012] Furthermore, the outer wall of the dust hood is fixedly connected to two second connecting plates, the ends of the second connecting plates are fixedly connected to sliding sleeves, the inner walls of the sliding sleeves are slidably connected to sliding rods, the bottom of the sliding rod is fixedly connected to the external ring, the circumferential outer wall of the sliding rod is fixedly connected to the first limiting ring and the second limiting ring, and the sliding sleeve is located between the first limiting ring and the second limiting ring.

[0013] Furthermore, the outer wall of the dust hood is fixedly connected to a first connecting plate, the end of the first connecting plate is fixedly connected to a mounting sleeve, the mounting sleeve is sleeved on the drive shaft, and a plurality of rotating balls are embedded in the inner wall of the mounting sleeve, and the balls are in rolling contact with the outer wall of the drive shaft.

[0014] Furthermore, a vacuum cleaner is fixedly connected to the top of the bracket, a vacuum nozzle is fixedly connected to the air suction end of the vacuum cleaner, the vacuum nozzle is fixedly connected to the top of the dust hood, and the air inlet end thereof extends into the dust hood.

[0015] A method for using a multi-station splicing injection mold comprises the following steps: S1: When switching between workstations, the first motor drives the mounting platform to rotate via the drive shaft to achieve workstation switching of the bottom mold; S2, injection stage, the hydraulic rod pushes the injection top mold down along the support rod and closes the mold with the bottom mold to complete the injection. After the injection is completed, the injection top mold rises and the mounting table rotates to the next station. At the same time, the bottom mold to be cleaned is moved to the cleaning area; S3, cleaning stage, the cylinder drives the dust cover down along the slide rod through the connecting frame until the cleaning brush touches the surface of the bottom mold. The second motor starts, and drives the two reciprocating screws to rotate synchronously through the synchronous wheel and the synchronous belt. During the movement of the slider, the reciprocating screw drives the second bevel gear to rotate through the cooperation between the guide groove and the protrusion. The second bevel gear drives the first bevel gear to rotate, so that the rotating shaft drives the cleaning brush to rotate, realizing a combined cleaning action of lateral movement and rotation. The impurities generated by cleaning are sucked in by the vacuum cleaner through the dust nozzle to avoid secondary pollution; S4. After cleaning is completed, the cylinder drives the dust hood to rise and reset, and the mounting table continues to rotate to switch positions, realizing continuous operation of injection molding and cleaning.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The driving component drives the cleaning brush to automatically complete lateral movement and rotation, eliminating the need for manual wiping, improving cleaning efficiency, avoiding production interruptions, reducing labor intensity, adapting to high-speed production rhythms, and avoiding a decrease in equipment utilization; the cleaning brush is installed in a liftable dust cover, and cooperates with the station rotation of the mounting table to adjust its position as the mold station switches, ensuring that the cleaning component is accurately aligned with the molds at different stations and covering all cavity areas; the combined action of lateral movement and rotation enables the cleaning brush to penetrate deep into the blind spots of special-shaped molds, and cooperate with the vacuum cleaner to remove impurities in time, solving the problem of incomplete cleaning of fixed cleaning devices and ensuring the quality of subsequent injection molding. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the implementation methods of the present application, the following is a brief introduction to the drawings required for use in the implementation methods. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 Schematic diagram of the installation structure of the drive shaft of the present invention; Figure 3 Schematic diagram of the installation structure of the injection molding top mold of the present invention; Figure 4 Schematic diagram of the installation structure of the cylinder of the present invention; Figure 5 Schematic diagram of the mounting structure of the bracket of the present invention; Figure 6 Schematic diagram of the installation structure of the reciprocating screw rod of the present invention; Figure 7 Schematic diagram of the installation structure of the slider of the present invention; Figure 8 It is a schematic diagram of the installation structure of the second rotating sleeve of the present invention.

[0019] Explanation of the reference numbers in the figure: 1. Base; 2. Support ring; 3. Support ring; 4. External ring; 5. Mounting platform; 6. Fixing sleeve; 7. Support plate; 8. First motor; 9. Drive shaft; 10. Support rod; 11. Injection top mold; 12. Mounting plate; 13. Hydraulic rod; 14. Bottom mold base; 15. Bottom mold; 16. Bracket; 17. First rotating sleeve; 18. Cylinder; 19. Vacuum cleaner; 20. Connecting frame; 21. Dust hood; 22. First connecting plate; 23 , mounting sleeve; 24, ball bearing; 25, dust suction nozzle; 26, second connecting plate; 27, sliding sleeve; 28, sliding rod; 29, first limiting ring; 30, second limiting ring; 31, bracket; 32, machine base; 33, second motor; 34, reciprocating screw; 35, slide groove; 36, synchronous wheel; 37, guide groove; 38, slider; 39, rotating shaft; 40, first bevel gear; 41, second bevel gear; 42, bump; 43, cleaning brush; 44, second rotating sleeve. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] like Figure 5-Figure 8 As shown, a multi-station splicing injection mold includes a dust cover 21 and a drive assembly. Both sides of the dust cover 21 are fixedly connected to a bracket 31. Both sides of the inner wall of the dust cover 21 are provided with a slide groove 35. A reciprocating screw rod 34 is provided in the slide groove 35. The two ends of the reciprocating screw rod 34 are respectively rotatably connected to the corresponding bracket 31. The outer wall of the reciprocating screw rod 34 is adapted to be equipped with a sliding slider 38. A cleaning brush 43 is provided in the dust cover 21. The inner wall of the cleaning brush 43 is fixedly connected to a rotating shaft 39. The two ends of the rotating shaft 39 are respectively rotatably connected to the slider 38. The end of the rotating shaft 39 is fixed. It is connected to a first bevel gear 40, and the outer wall of one reciprocating screw rod 34 is provided with a second bevel gear 41 and a second rotating sleeve 44. The first bevel gear 40 is meshed with the second bevel gear 41. One end of the second rotating sleeve 44 is rotatably connected to the slider 38, and the other end of the second rotating sleeve 44 is fixedly connected to the second bevel gear 41. The outer wall of the reciprocating screw rod 34 is provided with a plurality of guide grooves 37, and the inner wall of the second bevel gear 41 is fixedly connected with a plurality of protrusions 42. The protrusions 42 are slidably connected to the inner wall of the guide groove 37. The driving assembly is used to drive the two reciprocating screw rods 34 to rotate.

[0022] When the reciprocating screw is driven to rotate by a single second motor 33, the lateral movement of the slider 38 is synchronized with the rotation of the cleaning brush 43, avoiding the control delay of the traditional multi-motor system and ensuring that the bristles always contact the cavity surface at the optimal angle in the curved surface or blind corner area of ​​the special-shaped mold, thereby improving the efficiency of impurity removal.

[0023] The dust raised by the rotating cleaning brush is sucked into the vacuum cleaner 19 by negative pressure in real time, forming a closed loop of cleaning and collection. Compared with open cleaning, it avoids impurities from adhering to the mold or polluting the workshop environment for the second time, and especially solves the problem of pitting on the surface of injection molded parts caused by residual particles.

[0024] The drive assembly drives the reciprocating screw 34, causing the slider 38 to move the cleaning brush 43 laterally. Simultaneously, the meshing transmission of the first bevel gear 40 and the second bevel gear 41 enables the cleaning brush 43 to rotate. This creates a combined cleaning action of lateral movement and rotation, enabling deep cleaning of complex, blind spots in the cavities of irregularly shaped molds. The coordination of the reciprocating screw 34 and the slider 38 ensures that the entire mold surface is cleaned, resolving the issue of incomplete cleaning with fixed cleaning devices. The sliding connection between the guide groove 37 and the protrusion 42 ensures that the second bevel gear 41 rotates synchronously with the reciprocating screw 34 without affecting the movement of the slider 38, resulting in a stable transmission structure.

[0025] like Figure 5 and Figure 6 As shown, the drive assembly includes a machine base 32, a second motor 33 and two synchronous wheels 36. The two synchronous wheels 36 are respectively fixedly connected to the ends of the corresponding reciprocating screw rods 34. The two synchronous wheels 36 are connected by a synchronous belt transmission. The machine base 32 is fixedly connected to the outer wall of the bracket 31, the second motor 33 is fixedly connected to the outer wall of the machine base 32, and the output end of the second motor 33 is fixedly connected to the end of one of the reciprocating screw rods 34.

[0026] The synchronous wheel 36 and synchronous belt of the drive assembly realize the synchronous rotation of the two reciprocating screws 34, ensuring that the cleaning brush 43 is evenly stressed on both sides and moves horizontally smoothly; the second motor 33 provides stable power, can control the cleaning speed and stroke, adapt to the cleaning needs of different molds, and improve cleaning efficiency.

[0027] like Figure 1 and Figure 2 As shown, the multi-station splicing injection mold also includes a base 1, a support ring 2 is fixedly connected to the top of the base 1, a support ring 3 is fixedly connected to the top of the support ring 2, an external ring 4 is fixedly connected to the outer wall of the support ring 3, and a mounting platform 5 is rotatably connected to the inner wall of the support ring 3.

[0028] The base 1, the support ring 2 and the support ring 3 form a stable support structure. The mounting platform 5 can rotate relative to the support ring 3 to achieve multi-station switching and continuous injection molding and cleaning operations.

[0029] like Figure 1-Figure 3 As shown, two support rods 10 are fixedly connected to the top of the support ring 3, and the outer wall of the support rod 10 is slidably connected to the injection top mold 11. The outer wall of the support rod 10 is fixedly connected to the mounting plate 12, and the top of the mounting plate 12 is fixedly connected to the hydraulic rod 13. The output end of the hydraulic rod 13 passes through the mounting plate 12 and extends to the bottom thereof. The output end of the hydraulic rod 13 is fixedly connected to the injection top mold 11, and the top of the mounting table 5 is fixedly connected to the bottom mold base 14, and the top of the bottom mold base 14 is fixedly connected to the bottom mold mold 15 by bolts.

[0030] The support rod 10 guides the injection top mold 11 to rise and fall precisely, and the hydraulic rod 13 provides mold clamping pressure to ensure the quality of injection molding; the bottom mold 15 is connected to the bottom mold base 14 by bolts, which is convenient for replacing molds of different models and improving the versatility of the device.

[0031] like Figure 3 As shown, a fixing sleeve 6 is provided on the inner wall of the base 1, and a support plate 7 is fixedly connected to the outer wall of the fixing sleeve 6. The ends of the support plate 7 are respectively fixedly connected to the inner wall of the base 1, and a first motor 8 is fixedly connected to the inner wall of the fixing sleeve 6. The output end of the first motor 8 is fixedly connected to a drive shaft 9. The end of the drive shaft 9 passes through the mounting platform 5 and is fixedly connected thereto, the top of the drive shaft 9 passes through the injection top mold 11 and is slidably connected thereto, and the top of the drive shaft 9 passes through the mounting plate 12 and is fixedly connected thereto.

[0032] The first motor 8 drives the mounting table 5 to rotate through the drive shaft 9, realizing automatic switching of workstations without manual intervention; the sliding connection between the drive shaft 9 and the injection top mold 11 ensures that the lifting of the injection top mold is not affected by the workstation switching, so that the injection and cleaning processes are smoothly connected.

[0033] like Figure 4 As shown, the outer wall of the drive shaft 9 is rotatably connected to the first rotating sleeve 17, the outer wall of the first rotating sleeve 17 is fixedly connected to the bracket 16, the bottom of the bracket 16 is fixedly connected to the external ring 4, the top of the bracket 16 is fixedly connected to the cylinder 18, the output end of the cylinder 18 passes through the bracket 16 and extends to the bottom thereof, the output end of the cylinder 18 is fixedly connected to the connecting frame 20, and the bottom of the connecting frame 20 is fixedly connected to the dust hood 21.

[0034] The cylinder 18 drives the dust cover 21 to rise and fall, and the contact pressure of the cleaning brush 43 can be adjusted according to the mold height to avoid excessive wear or incomplete cleaning; the first rotating sleeve 17 makes the bracket 16 and the drive shaft 9 relatively independent, so that the position of the cleaning component is stable when the workstation rotates.

[0035] like Figure 4As shown, the outer wall of the dust hood 21 is fixedly connected to two second connecting plates 26, the ends of the second connecting plates 26 are fixedly connected to the sliding sleeves 27, the inner walls of the sliding sleeves 27 are slidably connected to the sliding rods 28, the bottom of the sliding rods 28 are fixedly connected to the external ring 4, the circumferential outer wall of the sliding rods 28 is fixedly connected to the first limiting ring 29 and the second limiting ring 30, and the sliding sleeve 27 is located between the first limiting ring 29 and the second limiting ring 30.

[0036] The sliding sleeve 27 cooperates with the sliding rod 28 to provide guidance for the lifting and lowering of the dust hood 21 to prevent the cleaning brush 43 from being offset; the first limiting ring 29 and the second limiting ring 30 limit the lifting and lowering range of the dust hood 21 to prevent collision with the mold or other components, thereby improving operational safety.

[0037] like Figure 4 As shown, the outer wall of the dust hood 21 is fixedly connected to a first connecting plate 22, and the end of the first connecting plate 22 is fixedly connected to a mounting sleeve 23, which is sleeved on the drive shaft 9. A plurality of rotating balls 24 are embedded in the inner wall of the mounting sleeve 23, and the balls 24 are in rolling contact with the outer wall of the drive shaft 9.

[0038] The balls 24 embedded in the mounting sleeve 23 are in rolling contact with the drive shaft 9, converting sliding friction into rolling friction, thereby reducing resistance and wear when the dust hood 21 is raised or lowered.

[0039] The first connecting plate 22 and the mounting sleeve 23 enhance the connection stability between the dust hood 21 and the drive shaft 9. The balls 24 convert sliding friction into rolling friction, reducing the resistance and wear when the dust hood 21 is raised and lowered, thereby extending the service life of the components.

[0040] like Figure 4 As shown, a vacuum cleaner 19 is fixedly connected to the top of the bracket 16 , a vacuum nozzle 25 is fixedly connected to the suction end of the vacuum cleaner 19 , and the vacuum nozzle 25 is fixedly connected to the top of the dust hood 21 , and its air inlet end extends into the dust hood 21 .

[0041] The vacuum cleaner 19 promptly sucks away impurities generated during the cleaning process through the vacuum nozzle 25, preventing the impurities from remaining or floating and contaminating the mold, thereby further improving the cleaning effect.

[0042] Working principle: When the workstation is switched, the first motor 8 drives the mounting platform 5 to rotate through the drive shaft 9 to achieve the workstation switching of the bottom mold 15.

[0043] During injection molding, the hydraulic rod 13 pushes the injection top mold 11 down along the support rod 10 and closes the mold with the bottom mold 15 to complete the injection molding. After the injection molding is completed, the injection top mold 11 rises, the mounting table 5 rotates to the next workstation, and the bottom mold 15 to be cleaned moves to the cleaning area.

[0044] During cleaning, the cylinder 18 drives the dust hood 21 to descend along the slide rod 28 through the connecting frame 20 until the cleaning brush 43 is in contact with the surface of the bottom mold 15. The second motor 33 is started and drives the two reciprocating screws 34 to rotate synchronously through the synchronous wheel 36 and the synchronous belt. During the movement of the slider 38, the reciprocating screw 34 drives the second bevel gear 41 to rotate through the cooperation of the guide groove 37 and the protrusion 42. The second bevel gear 41 drives the first bevel gear 40 to rotate, so that the rotating shaft 39 drives the cleaning brush 43 to rotate, realizing a composite cleaning action of lateral movement and rotation. The impurities generated by cleaning are sucked in by the vacuum cleaner 19 through the dust nozzle 25 to avoid secondary pollution.

[0045] After cleaning is completed, the cylinder 18 drives the dust cover 21 to rise and reset, and the mounting table 5 continues to rotate to switch positions, thereby realizing the continuous operation of injection molding and cleaning.

[0046] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-station splicing injection mold, comprising a dust cover (21) and a drive assembly, characterized in that: The dust hood (21) is fixedly connected to a bracket (31) on both sides, and a slide groove (35) is provided on both sides of the inner wall of the dust hood (21). A reciprocating screw rod (34) is provided in each of the slide grooves (35). The two ends of the reciprocating screw rod (34) are respectively rotatably connected to the corresponding bracket (31). The outer wall of the reciprocating screw rod (34) is adapted to be equipped with a sliding slider (38). A cleaning brush (43) is provided in the dust hood (21). The inner wall of the cleaning brush (43) is fixedly connected to a rotating shaft (39). The two ends of the rotating shaft (39) are respectively rotatably connected to the slider (38). The end of the rotating shaft (39) is fixedly connected to a first bevel gear (40). The outer wall of one of the reciprocating screw rods (34) is provided with a second bevel gear (41) and a second rotating sleeve (44), the first bevel gear (40) is meshed with the second bevel gear (41), one end of the second rotating sleeve (44) is rotatably connected to the slider (38), and the other end of the second rotating sleeve (44) is fixedly connected to the second bevel gear (41), the outer wall of the reciprocating screw rod (34) is provided with a plurality of guide grooves (37), the inner wall of the second bevel gear (41) is fixedly connected with a plurality of protrusions (42), and the protrusions (42) are slidably connected to the inner wall of the guide groove (37), and the driving assembly is used to drive the two reciprocating screw rods (34) to rotate.

2. The multi-station splicing injection mold according to claim 1, characterized in that: The driving assembly includes a machine base (32), a second motor (33) and two synchronous wheels (36), the two synchronous wheels (36) are respectively fixedly connected to the ends of the corresponding reciprocating screw rods (34), and the two synchronous wheels (36) are connected via a synchronous belt transmission. The machine base (32) is fixedly connected to the outer wall of the bracket (31), the second motor (33) is fixedly connected to the outer wall of the machine base (32), and the output end of the second motor (33) is fixedly connected to the end of one of the reciprocating screw rods (34).

3. The multi-station splicing injection mold according to claim 2, characterized in that: It also includes a base (1), wherein the top of the base (1) is fixedly connected to a support ring (2), the top of the support ring (2) is fixedly connected to a support ring (3), the outer wall of the support ring (3) is fixedly connected to an external connecting ring (4), and the inner wall of the support ring (3) is rotatably connected to a mounting platform (5).

4. The multi-station splicing injection mold according to claim 3, characterized in that: The top of the support ring (3) is fixedly connected to two support rods (10), the outer wall of the support rod (10) is slidably connected to the injection top mold (11), the outer wall of the support rod (10) is fixedly connected to the mounting plate (12), the top of the mounting plate (12) is fixedly connected to a hydraulic rod (13), the output end of the hydraulic rod (13) passes through the mounting plate (12) and extends below it, the output end of the hydraulic rod (13) is fixedly connected to the injection top mold (11), the top of the mounting platform (5) is fixedly connected to a bottom mold base (14), and the top of the bottom mold base (14) is fixedly connected to a bottom mold mold (15) by bolts.

5. The multi-station splicing injection mold according to claim 4, characterized in that: The inner wall of the base (1) is provided with a fixing sleeve (6), the outer wall of the fixing sleeve (6) is fixedly connected to a support plate (7), the ends of the support plate (7) are respectively fixedly connected to the inner wall of the base (1), the inner wall of the fixing sleeve (6) is fixedly connected to a first motor (8), the output end of the first motor (8) is fixedly connected to a drive shaft (9), the end of the drive shaft (9) passes through the mounting platform (5) and is fixedly connected thereto, the top of the drive shaft (9) passes through the injection molding top mold (11) and is slidably connected thereto, and the top of the drive shaft (9) passes through the mounting plate (12) and is fixedly connected thereto.

6. The multi-station splicing injection mold according to claim 5, characterized in that: The outer wall of the driving shaft (9) is rotatably connected to a first rotating sleeve (17), the outer wall of the first rotating sleeve (17) is fixedly connected to a bracket (16), the bottom of the bracket (16) is fixedly connected to the external ring (4), the top of the bracket (16) is fixedly connected to a cylinder (18), the output end of the cylinder (18) passes through the bracket (16) and extends to the bottom thereof, the output end of the cylinder (18) is fixedly connected to a connecting frame (20), and the bottom of the connecting frame (20) is fixedly connected to a dust cover (21).

7. The multi-station splicing injection mold according to claim 6, characterized in that: The outer wall of the dust hood (21) is fixedly connected to two second connecting plates (26), the ends of the second connecting plates (26) are fixedly connected to sliding sleeves (27), the inner walls of the sliding sleeves (27) are slidably connected to sliding rods (28), the bottom of the sliding rods (28) is fixedly connected to the external ring (4), the circumferential outer wall of the sliding rods (28) is fixedly connected to a first limiting ring (29) and a second limiting ring (30), and the sliding sleeve (27) is located between the first limiting ring (29) and the second limiting ring (30).

8. The multi-station splicing injection mold according to claim 7, characterized in that: The outer wall of the dust hood (21) is fixedly connected to a first connecting plate (22), and the end of the first connecting plate (22) is fixedly connected to a mounting sleeve (23), the mounting sleeve (23) is sleeved on the drive shaft (9), and a plurality of rotating balls (24) are embedded in the inner wall of the mounting sleeve (23), and the balls (24) are in rolling contact with the outer wall of the drive shaft (9).

9. The multi-station splicing injection mold according to claim 8, characterized in that: The top of the bracket (16) is fixedly connected to a vacuum cleaner (19), the air suction end of the vacuum cleaner (19) is fixedly connected to a vacuum nozzle (25), the vacuum nozzle (25) is fixedly connected to the top of the vacuum hood (21), and the air inlet end thereof extends into the vacuum hood (21).

10. A method for using a multi-station splicing injection mold, applicable to the multi-station splicing injection mold according to claim 9, characterized in that: The following steps are involved: S1, when the workstation is switched, the first motor (8) drives the mounting platform (5) to rotate via the drive shaft (9), thereby switching the workstation of the bottom mold (15); S2, injection molding stage, the hydraulic rod (13) pushes the injection top mold (11) down along the support rod (10), and closes the mold with the bottom mold (15) to complete the injection molding. After the injection molding is completed, the injection top mold (11) rises, the mounting table (5) rotates to the next station, and at the same time, the bottom mold (15) to be cleaned moves to the cleaning area; S3, cleaning stage, the cylinder (18) drives the dust cover (21) to descend along the slide bar (28) through the connecting frame (20) until the cleaning brush (43) is in contact with the surface of the bottom mold (15), the second motor (33) is started, and the two reciprocating screws (34) are driven to rotate synchronously through the synchronous wheel (36) and the synchronous belt. During the movement of the slider (38), the reciprocating screw (34) drives the second bevel gear (41) to rotate through the cooperation of the guide groove (37) and the protrusion (42), and the second bevel gear (41) drives the first bevel gear (40) to rotate, so that the rotating shaft (39) drives the cleaning brush (43) to rotate, realizing a composite cleaning action of lateral movement and rotation, and the impurities generated by cleaning are sucked in by the dust collector (19) through the dust nozzle (25) to avoid secondary pollution; S4. After cleaning is completed, the cylinder (18) drives the dust cover (21) to rise and reset, and the mounting table (5) continues to rotate to switch the working position.

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