A multi-station injection molding machine

Abstract

The utility model discloses a multi-station injection molding machine, comprising a shell, a positioning mechanism and a support column; the shell: a mounting groove is opened at the upper end of the inner part thereof, the bottom wall of the mounting groove is rotatably connected with a rotating shaft, the top end of the rotating shaft extends to the outside of the upper surface of the shell, the top end of the rotating shaft is fixedly connected with a turntable, and the upper surface of the turntable is provided with four lower mold seats; the positioning mechanism: there are four positioning mechanisms, the four positioning mechanisms are all arranged between the upper surface of the shell and the lower surface of the turntable, and the positioning mechanisms are all in one-to-one correspondence with the upper and lower positions of the vertically adjacent lower mold seats; the support column: there are four supporting columns, the upper ends of the four supporting columns are all fixedly connected with the four corners of a fixed plate 2, the multi-station injection molding machine can instantly sense a slight change or offset in the position of the mold, and can ensure that the mold accurately corresponds to its proper position, thereby realizing the accuracy of the multi-station injection molding machine in the process of adjusting the workstations.

Description

Technical Field

[0001] The utility model relates to the technical field of blister packaging production, in particular to a multi-station injection molding machine. Background Art

[0002] Blister packaging is a manufacturing process that usually involves softening plastic sheets or sheets by heating, and then applying vacuum or negative pressure to a mold or product to form a packaging container or packaging shape. In the blister packaging industry, a large number of packaging products are usually required. Using a multi-station injection molding machine can speed up production and increase output;

[0003] In order to ensure the precise positioning of each station, traditional multi-station injection molding machines usually set a driven wheel matching the main shaft gear at each station. These gears are connected through a mechanical transmission system (such as chains, belts, etc.) so that all stations can rotate synchronously or stop at the required position.

[0004] Traditional multi-station injection molding machines have the following problems: the accuracy of the mechanical transmission system is limited by manufacturing and installation, and may not be able to meet high-precision requirements, especially in a production environment that requires minor adjustments or changes. For this reason, we propose a multi-station injection molding machine. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the existing defects and provide a multi-station injection molding machine, which can achieve the accuracy and consistency of the multi-station injection molding machine in the process of adjusting the stations, and can effectively solve the problems in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a multi-station injection molding machine, comprising a housing, a positioning mechanism and a support column;

[0007] Shell: The upper end of the inner part is provided with a mounting groove, the bottom wall of the mounting groove is rotatably connected with a rotating shaft, the top end of the rotating shaft extends to the outside of the upper surface of the shell, the top end of the rotating shaft is fixedly connected with a turntable, and the upper surface of the turntable is provided with four lower mold seats;

[0008] Positioning mechanisms: There are four positioning mechanisms, all of which are arranged between the upper surface of the housing and the lower surface of the turntable, and all of the positioning mechanisms correspond to the upper and lower positions of the vertically adjacent lower die seats;

[0009] Support columns: There are four of them, and the upper ends of the four support columns are fixedly connected to the four corners of a fixed plate 2. A sliding opening is opened in the middle of the fixed plate 2, and the inner wall of the sliding opening is slidably connected to an injection cylinder that can move up and down. The injection port of the injection cylinder is fixedly connected to an upper mold base, and the upper mold base is installed in coordination with the vertically adjacent lower mold base. It can instantly sense slight changes or offsets in the mold position, and can quickly adjust the motor to ensure that the mold accurately corresponds to its proper position, thereby achieving accuracy and consistency in the process of adjusting the workstations of the multi-station injection molding machine.

[0010] Furthermore, it also includes a single-chip microcomputer, which is arranged at the front end of the right side of the shell, and the input end of the single-chip microcomputer is electrically connected to an external power supply to facilitate the regulation of the operation of various electrical appliances.

[0011] Furthermore, it also includes support rods, which are respectively fixedly connected to the four corners of the upper surface of the fixed plate 2, the upper ends between the support rods are fixedly connected to the fixed plate 1, the middle part of the fixed plate 1 is provided with an electric push rod, the telescopic end of the electric push rod is fixedly connected to the sliding plate, the four corners of the sliding plate are slidably connected to the middle part of the adjacent support rods, the lower surface of the fixed plate 1 is fixedly connected to the top of the injection barrel, the input end of the electric push rod is electrically connected to the output end of the single-chip microcomputer, so as to realize the displacement of the upper mold base.

[0012] Furthermore, the positioning mechanism includes a sliding column, a sliding hole, a mounting seat, a mounting plate, a universal wheel, a fixing ring, a positioning groove, a gravity sensor and a guide rail, the fixing ring is fixedly connected to the front end of the upper surface of the shell, the upper surface of the fixing ring is provided with a guide rail, the upper surface of the fixing ring is provided with four positioning grooves, the bottom walls of the four positioning grooves are provided with gravity sensors, the number of the mounting seats is four, the four mounting seats are respectively fixedly connected to the lower surface of the turntable, the interior of the mounting seats is provided with a sliding hole, the inner walls of the sliding holes are slidably connected with sliding columns, the bottom ends of the sliding columns are fixedly connected with mounting plates, the lower surfaces of the mounting plates are installed with universal wheels by bolts, the universal wheels are all located inside a guide rail, the universal wheels are all installed in cooperation with the detection end of the gravity sensor, the gravity sensors are all in one-to-one correspondence with the upper and lower positions of the vertically adjacent lower mold seats, the gravity sensor is bidirectionally electrically connected to the single-chip microcomputer, thereby realizing the accuracy and consistency of the multi-station injection molding machine in the process of adjusting the stations.

[0013] Furthermore, the positioning mechanism also includes a ramp, and the ramps are all arranged at the edges of the four positioning slots in the clockwise direction. The ramps are all installed in cooperation with the universal wheels to facilitate separation from the positioning slots.

[0014] Furthermore, the positioning mechanism also includes springs, and the springs are fixedly connected between the lower surface of the fixing ring and the upper surface of the vertically adjacent mounting plate. The springs are sleeved on the outer surface of the sliding column and elastically supported.

[0015] Furthermore, it also includes a driving component, which includes a motor, a worm and a worm wheel. The motor is installed on the front end of the bottom wall of the mounting groove by bolts, and the rear end of the output shaft of the motor is fixedly connected to the worm. The worm wheel is fixedly sleeved on the lower end of the rotating shaft. The worm wheel is meshingly connected to the worm. The input end of the motor is electrically connected to the output end of the single-chip microcomputer to drive the turntable to rotate.

[0016] Compared with the prior art, the beneficial effects of the utility model are: the multi-station injection molding machine has the following advantages:

[0017] The turntable rotates and drives the universal wheel on the mounting seat to slide along the inner wall of the guide rail, and drives the universal wheel of the station that has completed injection molding to move along the slope into the guide rail, causing the spring to be compressed, so that the slide column on the mounting plate is always in the slide hole. When the universal wheel of the next station moves to the counterclockwise edge of the positioning groove, due to the action of gravity, the universal wheel will fall into the positioning groove, and the compressed spring will release its stored elastic force, thereby driving the universal wheel to rebound and trigger the response of the gravity sensor. The gravity sensor detects the change in gravity and transmits the detected signal to the single-chip microcomputer. The single-chip microcomputer judges and calculates the received signal, and regulates the motor to stop rotating, thereby ensuring that the lower mold base rotates accurately to the bottom of the upper mold base, preparing for the next production operation, so that it can instantly sense the slight change or offset of the mold position, and can quickly adjust the motor to ensure that the mold corresponds accurately to its proper position, thereby achieving the accuracy and consistency of the multi-station injection molding machine in the process of adjusting the station. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 It is a schematic structural diagram of the right side section of the utility model;

[0020] Figure 3 It is a schematic diagram of the structure of the utility model enlarged at A;

[0021] Figure 4 It is a schematic diagram of the structure enlarged at B of the utility model;

[0022] Figure 5 It is a partial structural schematic diagram of the positioning mechanism of the utility model.

[0023] In the figure: 1 positioning mechanism, 101 sliding column, 102 sliding hole, 103 mounting seat, 104 spring, 105 mounting plate, 106 universal wheel, 107 fixing ring, 108 positioning groove, 109 gravity sensor, 110 ramp, 111 guide rail, 2 housing, 3 turntable, 4 lower die seat, 5 sliding mouth, 6 electric push rod, 7 fixing plate 1, 8 support rod, 9 sliding plate, 10 upper die seat, 11 injection cylinder, 12 fixing plate 2, 13 supporting column, 14 single chip microcomputer, 15 mounting groove, 16 rotating shaft, 17 driving assembly, 171 motor, 172 worm, 173 worm wheel. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-5 , This embodiment provides a technical solution: a multi-station injection molding machine, including a housing 2, a positioning mechanism 1 and a support column 13;

[0026] The housing 2 has a mounting groove 15 at the upper end thereof, the bottom wall of the mounting groove 15 is rotatably connected to a rotating shaft 16, the top end of the rotating shaft 16 extends to the outside of the upper surface of the housing 2, the top end of the rotating shaft 16 is fixedly connected to a turntable 3, the upper surface of the turntable 3 is provided with four lower die seats 4, and also includes a single-chip microcomputer 14, the single-chip microcomputer 14 is arranged at the front end of the right side of the housing 2, the input end of the single-chip microcomputer 14 is electrically connected to an external power supply, and also includes a drive assembly 17, the drive assembly 17 includes a motor 171, a worm 172 and a worm wheel 173, the motor 171 is installed at the front end of the bottom wall of the mounting groove 15 by bolts, and the output of the motor 171 A worm 172 is fixedly connected to the rear end of the shaft, and a worm wheel 173 is fixedly sleeved on the lower end of the rotating shaft 16. The worm wheel 173 is meshed and connected with the worm 172. The input end of the motor 171 is electrically connected to the output end of the single-chip computer 14. The single-chip computer 14 controls the operation of the motor 171. The output shaft of the motor 171 rotates to drive the worm 172 to rotate. The worm 172 meshes with the worm wheel 173, so that the worm wheel 173 starts to rotate. The rotation of the worm wheel 173 drives the rotating shaft 16 to start rotating. The rotating shaft 16 drives the turntable 3 and the lower die base 4 thereon to rotate counterclockwise, so that the lower die base 4 of the next station can be rotated to the required position.

[0027] Positioning mechanism 1: There are four of them, and the four positioning mechanisms 1 are all arranged between the upper surface of the housing 2 and the lower surface of the turntable 3. The positioning mechanisms 1 correspond to the upper and lower positions of the vertically adjacent lower mold bases 4 one by one. The positioning mechanism 1 includes a slide column 101, a slide hole 102, a mounting seat 103, a mounting plate 105, a universal wheel 106, a fixing ring 107, a positioning groove 108, a gravity sensor 109 and a guide rail 111. The fixing ring 107 is fixedly connected to the front end of the upper surface of the housing 2. The upper surface of the fixing ring 107 is provided with a guide rail 111. The upper surface of the fixing ring 107 is provided with four positioning grooves 108. The bottom walls of the four positioning grooves 108 are provided with gravity sensors 109. There are four mounting seats 103, which are fixedly connected to the lower surface of the turntable 3 respectively. Slide holes 102 are opened inside the mounting seats 103, and the inner walls of the slide holes 102 are slidably connected with slide columns 101. The bottom ends of the slide columns 101 are fixedly connected with mounting plates 105. Universal wheels 106 are installed on the lower surfaces of the mounting plates 105 by bolts. The universal wheels 106 are located inside a guide rail 111. The universal wheels 106 are installed in cooperation with the detection ends of gravity sensors 109. The gravity sensors 109 correspond to the upper and lower positions of the vertically adjacent lower mold seats 4 one by one. The gravity sensors 109 are bidirectionally electrically connected to the single-chip microcomputer 14. The positioning mechanism 1 also includes a ramp 110, the ramps 110 are all arranged at the clockwise edges of the four positioning grooves 108, the ramps 110 are all installed in cooperation with the universal wheels 106, the positioning mechanism 1 also includes a spring 104, the springs 104 are all fixedly connected between the lower surface of the fixing ring 107 and the upper surface of the vertically adjacent mounting plate 105, the springs 104 are all sleeved on the outer surface of the slide column 101, the turntable 3 rotates and drives the universal wheels 106 on the mounting seat 103 to slide along the inner wall of the guide rail 111, and drives the universal wheels 106 that have been injection molded to move along the ramp 110 into the guide rail 111, causing the spring 104 to be compressed, so that the slide column 101 on the mounting plate 105 Always in the slide hole 102, when the universal wheel 106 of the next station moves to the edge of the positioning groove 108 in the counterclockwise direction, due to the effect of gravity, the universal wheel 106 will fall into the positioning groove 108, and the compression spring 104 will release its stored elastic force, thereby driving the universal wheel 106 to rebound and trigger the response of the gravity sensor 109. The gravity sensor 109 detects the change of gravity and transmits the detected signal to the single-chip microcomputer 14. The single-chip microcomputer 14 judges and calculates the received signal and regulates the motor 171 to stop rotating, thereby ensuring that the lower mold base 4 rotates accurately to the bottom of the upper mold base 10, ready for the next production operation;

[0028] Support columns 13: There are four of them. The upper ends of the four support columns 13 are fixedly connected to the four corners of a fixed plate 2 12. A sliding opening 5 is provided in the middle of the fixed plate 2 12. The inner wall of the sliding opening 5 is slidably connected to an injection cylinder 11 that can move up and down. An upper mold base 10 is fixedly connected to the injection port of the injection cylinder 11. The upper mold base 10 is installed in cooperation with the vertically adjacent lower mold base 4. It also includes a support rod 8, which is fixedly connected to the four corners of the upper surface of the fixed plate 2 12 respectively. A fixed plate 1 7 is fixedly connected to the upper ends of the support rods 8. An electric push rod 6 is provided in the middle of the fixed plate 1 7. The telescopic end of the electric push rod 6 is fixedly connected to a sliding plate 9. The four corners of the sliding plate 9 are slidably connected to the middle of the adjacent support rod 8. The lower surface of the fixed plate 1 7 is fixedly connected to the top of the injection cylinder 11. The input end of the electric push rod 6 is electrically connected to the output end of the single-chip microcomputer 14. The electric push rod 6 is regulated by the single-chip microcomputer 14. When the push rod 6 runs, the telescopic end of the electric push rod 6 pushes the sliding plate 9, so that the sliding plate 9 moves downward along the outer surface of the support rod 8, and at the same time drives the injection cylinder 11 and the fixedly connected upper mold base 10 to move downward synchronously, until the upper mold base 10 is driven to move to fully fit with the lower mold base 4 to form a whole, ensuring the closure of the mold and the accuracy of the injection molding space. When the upper mold base 10 is fully fitted with the lower mold base 4, the telescopic end of the electric push rod 6 continues to push the sliding plate 9, so that it applies pressure to the injection end of the injection cylinder 11, and the plastic raw material is pushed through the injection cylinder 11 into the cavity where the upper mold base 10 and the lower mold base 4 fit together, filling the entire mold space. After the injection molding is completed, the mold will be cooled and solidified to finally form a product. Subsequently, the operation of the electric push rod 6 is controlled by the single-chip microcomputer 14, and the telescopic end of the electric push rod 6 drives the upper mold base 10 to separate from the lower mold base 4, and the blister packaging is demolded.

[0029] The working principle of a multi-station injection molding machine provided by the utility model is as follows: first, the operation of the electric push rod 6 is controlled by the single chip computer 14, and the telescopic end of the electric push rod 6 pushes the sliding plate 9, so that the sliding plate 9 moves downward along the outer surface of the support rod 8, and at the same time drives the injection cylinder 11 and the upper mold base 10 fixedly connected to move downward synchronously, until the upper mold base 10 is driven to move to fully fit with the lower mold base 4 to form a whole, thereby ensuring the closure of the mold and the accuracy of the injection molding space. When the upper mold base 10 is fully fitted with the lower mold base 4, the telescopic end of the electric push rod 6 continues to push the sliding plate 9 to make it The injection end of the syringe 11 applies pressure to push the plastic raw material through the syringe 11 into the cavity where the upper mold base 10 and the lower mold base 4 fit together, filling the entire mold space. After the injection molding is completed, the mold will be cooled and solidified to finally form a product. Then, the electric push rod 6 is controlled by the single-chip microcomputer 14 to operate. The telescopic end of the electric push rod 6 drives the upper mold base 10 to separate from the lower mold base 4, and the blister packaging is demolded. Then, the motor 171 is controlled by the single-chip microcomputer 14 to operate. The output shaft of the motor 171 rotates to drive the worm 172 to rotate. The worm 172 is meshed with the worm wheel 173, so that the worm wheel 173 starts to rotate. The worm gear 173 rotates to drive the rotating shaft 16 to start rotating, and the rotating shaft 16 drives the turntable 3 and the lower mold base 4 thereon to rotate counterclockwise, so that the lower mold base 4 of the next station can be rotated to the required position. The turntable 3 rotates and drives the universal wheel 106 on the mounting seat 103 to slide along the inner wall of the guide rail 111, and drives the universal wheel 106 of the station that has been injection molded to move along the ramp 110 into the guide rail 111, causing the spring 104 to be compressed, so that the slide post 101 on the mounting plate 105 is always in the slide hole 102, and the universal wheel 106 of the next station moves to the fixed When the positioning slot 108 reaches the edge in the counterclockwise direction, due to the effect of gravity, the universal wheel 106 will fall into the positioning slot 108, and the compression spring 104 will release its stored elastic force, thereby driving the universal wheel 106 to rebound and triggering the response of the gravity sensor 109. The gravity sensor 109 detects the change in gravity and transmits the detected signal to the single-chip microcomputer 14. The single-chip microcomputer 14 judges and calculates the received signal and regulates the motor 171 to stop rotating, thereby ensuring that the lower mold base 4 rotates accurately to the bottom of the upper mold base 10, preparing for the next production operation.

[0030] It is worth noting that the specific model of the single chip microcomputer 14 disclosed in the above embodiment is S7-200, the motor 171 is recommended to use D180M-0160030B-E, the electric push rod 6 can use SM-38STG-1000N, and the single chip microcomputer 14 controls the motor 171 and the electric push rod 6 using methods commonly used in the prior art.

[0031] The above are only embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A multi-station injection molding machine, characterized in that: It comprises a housing (2), a positioning mechanism (1) and a support column (13); The housing (2) has a mounting groove (15) at its inner upper end, the bottom wall of the mounting groove (15) is rotatably connected to a rotating shaft (16), the top end of the rotating shaft (16) extends to the outside of the upper surface of the housing (2), the top end of the rotating shaft (16) is fixedly connected to a rotating disk (3), and the upper surface of the rotating disk (3) is provided with four lower mold seats (4); Positioning mechanisms (1): there are four positioning mechanisms (1), each of which is arranged between the upper surface of the housing (2) and the lower surface of the turntable (3), and each of the positioning mechanisms (1) corresponds one to one to the upper and lower positions of the vertically adjacent lower mold bases (4); Support columns (13): There are four support columns (13). The upper ends of the four support columns (13) are fixedly connected to the four corners of a second fixed plate (12). A sliding opening (5) is provided in the middle of the second fixed plate (12). An injection cylinder (11) that can move up and down is slidably connected to the inner wall of the sliding opening (5). An upper mold base (10) is fixedly connected to the injection port of the injection cylinder (11). The upper mold base (10) is installed in coordination with a lower mold base (4) that is adjacent in the vertical direction.

2. A multi-station injection molding machine according to claim 1, characterized in that: It also includes a single-chip microcomputer (14), which is arranged on the front end of the right side of the housing (2), and an input end of the single-chip microcomputer (14) is electrically connected to an external power supply.

3. A multi-station injection molding machine according to claim 2, characterized in that: It also includes support rods (8), wherein the support rods (8) are respectively fixedly connected to the four corners of the upper surface of the second fixed plate (12), the upper ends between the support rods (8) are fixedly connected to the first fixed plate (7), the middle part of the first fixed plate (7) is provided with an electric push rod (6), the telescopic end of the electric push rod (6) is fixedly connected to the sliding plate (9), the four corners of the sliding plate (9) are slidably connected to the middle part of the adjacent support rods (8), the lower surface of the first fixed plate (7) is fixedly connected to the top end of the injection cylinder (11), and the input end of the electric push rod (6) is electrically connected to the output end of the single chip computer (14).

4. A multi-station injection molding machine according to claim 2, characterized in that: The positioning mechanism (1) comprises a sliding column (101), a sliding hole (102), a mounting seat (103), a mounting plate (105), a universal wheel (106), a fixing ring (107), a positioning groove (108), a gravity sensor (109) and a guide rail (111); the fixing ring (107) is fixedly connected to the front end of the upper surface of the housing (2); the upper surface of the fixing ring (107) is provided with a guide rail (111); the upper surface of the fixing ring (107) is provided with four positioning grooves (108); the bottom walls of the four positioning grooves (108) are each provided with a gravity sensor (109); the number of the mounting seats (103) is four, and the four mounting seats (103) are respectively fixed to the front end of the upper surface of the housing (2); the upper surface of the fixing ring (107) is provided with a guide rail (111); the upper surface of the fixing ring (107) is provided with four positioning grooves (108); the bottom walls of the four positioning grooves (108) are each provided with a gravity sensor (109); The mounting base (103) is fixedly connected to the lower surface of the rotating disk (3), and a sliding hole (102) is provided inside the mounting base (103). The inner wall of the sliding hole (102) is slidably connected to a sliding column (101). The bottom end of the sliding column (101) is fixedly connected to a mounting plate (105). A universal wheel (106) is installed on the lower surface of the mounting plate (105) by bolts. The universal wheel (106) is located inside a guide rail (111). The universal wheel (106) is installed in cooperation with the detection end of a gravity sensor (109). The gravity sensor (109) corresponds to the upper and lower positions of the vertically adjacent lower mold base (4) one by one. The gravity sensor (109) is bidirectionally electrically connected to the single-chip computer (14).

5. A multi-station injection molding machine according to claim 4, characterized in that: The positioning mechanism (1) further comprises a slope (110), wherein the slopes (110) are all arranged at the edges of the four positioning slots (108) in the clockwise direction, and the slopes (110) are all installed in cooperation with the universal wheels (106).

6. A multi-station injection molding machine according to claim 4, characterized in that: The positioning mechanism (1) further comprises a spring (104), wherein the springs (104) are fixedly connected between the lower surface of the fixing ring (107) and the upper surface of the vertically adjacent mounting plate (105), and the springs (104) are sleeved on the outer surface of the sliding column (101).

7. The multi-station injection molding machine according to claim 2, characterized in that: The device also comprises a driving assembly (17), the driving assembly (17) comprising a motor (171), a worm (172) and a worm wheel (173), the motor (171) being mounted on the front end of the bottom wall of the mounting groove (15) by means of bolts, the rear end of the output shaft of the motor (171) being fixedly connected to the worm (172), the worm wheel (173) being fixedly sleeved on the lower end of the rotating shaft (16), the worm wheel (173) being meshingly connected to the worm (172), and the input end of the motor (171) being electrically connected to the output end of the single-chip computer (14).

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