CN218906152U

CN218906152U - Automatic cover opening mechanism for injection mold

Info

Publication number: CN218906152U
Application number: CN202223091562.0U
Authority: CN
Inventors: 赵艳; 朱春明
Original assignee: Jiangsu Fushun Tianzhizao Technology Co ltd
Current assignee: Jiangsu Fushun Tianzhizao Technology Co ltd
Priority date: 2022-11-21
Filing date: 2022-11-21
Publication date: 2023-04-25
Anticipated expiration: 2032-11-21

Abstract

The utility model discloses an automatic cover opening mechanism for an injection mold, which relates to the technical field of injection molds and comprises an injection mold main body, a mold upper cover lifting unit and a mold upper cover sideslip unit; the inside of injection mold main part is opened there is vertical mould injection cavity, the opening in mould injection cavity sets up, the PLC controller is installed to the front end of injection mold main part. The utility model has the advantages that the die upper cover sideslip unit is reliable, the sealing or opening of the port of the injection cavity of the die can be realized through the movement of two dimensions, and the die upper cover sideslip unit can realize automatic control through the temperature sensor and the PLC, so that the sliding die upper cover can be automatically opened after the cooling of a product is finished, the automatic effect of the device is improved, the sliding die upper cover is laterally opened, the process of taking out the injection product in the injection cavity of the injection die from the upper side is not interfered, and the efficiency of taking out the injection product after the die is opened can be improved.

Description

Automatic cover opening mechanism for injection mold

Technical Field

The utility model relates to the technical field of injection molds, in particular to an automatic cover opening mechanism for an injection mold.

Background

Injection molding, also known as injection molding, is a method of injection and molding. At a certain temperature, stirring completely melted plastic materials by a screw, injecting the materials into a die cavity by high pressure, and cooling and solidifying the materials to obtain a molded product, wherein the method is suitable for mass production of parts with complex shapes and is one of important processing methods;

the Chinese patent with the authority of CN211709950U in the prior art discloses a mold opening mechanism for an injection mold, which comprises an upper stabilizer bar and a connecting plate, wherein the right end face of the upper stabilizer bar is provided with the connecting plate, the center position of the bottom end face of the connecting plate is provided with a fixed block, the bottom end face of the fixed block is provided with a telescopic cylinder, the bottom end face of the telescopic cylinder is provided with a fixed base, the bottom end face of the fixed base is provided with a stabilizer plate, the front position of the left end face of the stabilizer plate is provided with a lower stabilizer bar, and the lower stabilizer bar comprises a rod body, a plugboard, a fixed bolt and a sand grinding pad;

the upper cover plate of the injection mold is driven to rise through the telescopic air cylinder to open the injection cavity of the injection mold when the mold is opened, but the upper cover plate of the injection mold is still suspended above the top opening of the injection cavity of the injection mold after the injection cavity of the injection mold is opened, the process of taking out the injection product in the injection cavity of the injection mold from the upper side is easy to interfere, the production efficiency is lower, and the requirement of quick production is not met.

Disclosure of Invention

The utility model aims to overcome the existing defects, and provides an automatic cover opening mechanism for an injection mold, which is provided with a reliable cover side sliding unit for the upper cover of the mold, can realize the closing or opening of a port of an injection cavity of the mold through the movement of two dimensions, and the cover side sliding unit of the mold can realize automatic control through a temperature sensor and a PLC (programmable logic controller), so that the upper cover of the sliding mold can be automatically opened after the cooling of a product is finished, the automation effect of a device is improved, the upper cover of the sliding mold is laterally opened, the process of taking out an injection product in the injection cavity of the injection mold from the upper side is not interfered, the efficiency of taking out the injection product after the mold is opened can be improved, and the problems in the background art can be effectively solved.

In order to achieve the above purpose, the present utility model provides the following technical solutions: an automatic cover opening mechanism for an injection mold comprises an injection mold main body, a mold upper cover lifting unit and a mold upper cover sideslip unit;

injection mold main body: a vertical mold injection cavity is formed in the mold injection cavity, an opening of the mold injection cavity faces upwards, and a PLC controller is arranged at the front end of the injection mold main body;

die upper cover lifting unit: is arranged on the upper side of the injection mold main body;

die upper cover sideslip unit: the automatic lifting device comprises a sliding die upper cover, a motor, a transmission shaft, straight gears, rack bars and fixing bolts, wherein the sliding die upper cover is longitudinally connected between two clamping frames of a die upper cover lifting unit in a sliding mode, the motor is respectively embedded and installed at the front ends of the left side and the right side of the sliding die upper cover, an output shaft of the motor is outwards arranged and is fixedly connected with one end of the transmission shaft which is transversely arranged, the straight gears are fixedly connected with the other end of the transmission shaft, the longitudinal rack bars are symmetrically installed in upper and lower sides of clamping sliding grooves in the clamping frames, two ends of each rack bar are fixedly connected with the inner walls of the clamping sliding grooves through the fixing bolts, the straight gears are meshed and connected between the upper rack bar and the lower rack bar, the transverse width of each straight gear is smaller than that of each tooth on each rack bar, and the input end of each motor is electrically connected with the output end of an external power supply through a PLC.

The injection mold main part is used for seting up of mould injection cavity, the mould injection cavity is used for carrying out cooling shaping to the material of injecting into, the PLC controller is used for controlling the automatic switching of slip mould upper cover, mould upper cover elevating unit is used for controlling the lid and reciprocates, thereby can control the closure or opening of mould injection cavity port, the slip mould upper cover is used for closing the port of mould injection cavity, the motor passes through the transmission shaft and drives the spur gear rotation, the spur gear is connected with the rack pole meshing of upper and lower both sides, the rack pole passes through fixing bolt and joint spout's inner wall fixed connection, thereby make the spur gear roll around in the pivoted, and then drive slip mould upper cover backward through the transmission shaft.

Further, the die upper cover sideslip unit further comprises a limiting block, a limiting block is fixedly connected to corner positions of the front end and the rear end of the rack rod, the upper end and the lower end of the limiting block are respectively fixedly connected with the upper rack rod and the lower rack rod, and one side of the limiting block is provided with an arc-shaped laminating groove. The limiting block is used for limiting the transmission shaft and preventing the transmission shaft from moving too much distance, so that the upper cover of the sliding die is separated from the clamping chute.

Further, the die upper cover sideslip unit further comprises a longitudinal chute and a sliding connection rod, the longitudinal chute is formed in the upper side of the inside of the clamping chute in the die upper cover lifting unit, the longitudinal sliding connection rods are fixedly connected to the left side and the right side of the upper end of the sliding die upper cover, and the sliding connection rod is in sliding connection with the inside of the longitudinal chute. The longitudinal sliding groove is used for being in sliding connection with the sliding connection rod, so that the upper cover of the sliding die can slide longitudinally stably.

Further, mould upper cover elevating unit contains mounting hole, pneumatic cylinder, spliced pole and joint frame and joint spout, a circular shape mounting hole has all been seted up to the upper end four corners position department of injection mold main part, and the pneumatic cylinder is all installed in the inside of every mounting hole in the embedding, the flexible end and the lower extreme fixed connection of vertical spliced pole of pneumatic cylinder, the upper end fixed connection of spliced pole is at the lower extreme of fore-and-aft joint frame, fore-and-aft joint spout has all been seted up to the opposite one side of joint frame, the input of pneumatic cylinder passes through the output electricity of PLC controller and external power source and is connected. The mounting hole is used for the installation of pneumatic cylinder, and the pneumatic cylinder passes through the spliced pole and drives the joint frame and go up and down, and the joint frame carries out bearing and joint to the tip of sliding die upper cover through the joint spout to make sliding die upper cover can slide along the joint spout back and forth.

Further, the injection molding die further comprises a supporting ring and a rubber sealing ring, wherein the annular supporting ring is fixedly arranged at the upper port of the injection molding cavity of the die, and the rubber sealing ring is fixedly arranged at the upper end of the supporting ring. The support ring is used for being attached to the lower end of the upper cover of the sliding die, so that the upper port of the injection cavity of the die is closed, and the rubber sealing ring is used for sealing between the support ring and the upper cover of the sliding die.

Further, the injection mold further comprises a temperature sensor, wherein the temperature sensor is arranged at the front end of the injection mold main body, the induction end of the temperature sensor is adjacent to the inner wall of the injection cavity of the mold, the input end of the temperature sensor is electrically connected with the output end of an external power supply through an external control switch group, and the output end of the temperature sensor is connected with the signal input end of the PLC through a data line. The temperature sensor is used for sensing the temperature inside the injection cavity of the die, so that the opening of the upper cover of the sliding die can be automatically controlled through the PLC when the temperature inside the injection cavity of the die is reduced to a proper position.

Compared with the prior art, the utility model has the beneficial effects that: this automatic mechanism of uncapping for injection mold has following benefit:

1. the device has the advantages that the device is provided with the reliable side sliding unit of the upper cover of the die, and the port of the injection cavity of the die can be closed or opened by sliding the upper cover of the die in two dimensions: the mounting holes are used for mounting the hydraulic cylinders, the hydraulic cylinders drive the clamping frames to lift through the connecting columns, the clamping frames support and clamp the end parts of the upper covers of the sliding molds through the clamping sliding grooves, the upper covers of the sliding molds can slide back and forth along the clamping sliding grooves, the supporting rings are used for being attached to the lower ends of the upper covers of the sliding molds, therefore, the upper ports of the injection molding cavities of the molds are sealed, and the rubber sealing rings are used for sealing between the supporting rings and the upper covers of the sliding molds; the motor drives the spur gear to rotate through the transmission shaft, the spur gear is meshed with rack bars on the upper side and the lower side, the rack bars are fixedly connected with the inner wall of the clamping chute through fixing bolts, so that the spur gear can roll back and forth between the upper rack bar and the lower rack bar while rotating, and the upper cover of the sliding die is driven to slide backwards through the transmission shaft;

2. the sliding die upper cover can be automatically opened after the cooling of the product is completed: when the temperature in the injection cavity of the die falls to a proper position, the opening of the upper cover of the sliding die is automatically controlled by the PLC controller: the temperature sensor is used for sensing the temperature in the injection cavity of the die and transmitting temperature data to the PLC, and the PLC firstly controls the upper cover of the sliding die to rise and then slides the upper cover of the sliding die backwards, so that the upper port of the injection cavity of the die is exposed, and the product is conveniently taken out;

3. the utility model has the advantages that the die upper cover sideslip unit is reliable, the sealing or opening of the port of the injection cavity of the die can be realized through the movement of two dimensions, and the die upper cover sideslip unit can realize automatic control through the temperature sensor and the PLC, so that the sliding die upper cover can be automatically opened after the cooling of a product is finished, the automatic effect of the device is improved, the sliding die upper cover is laterally opened, the process of taking out the injection product in the injection cavity of the injection die from the upper side is not interfered, and the efficiency of taking out the injection product after the die is opened can be improved.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the rear side structure of the present utility model;

FIG. 3 is a schematic view of the right upper side structure of the present utility model;

FIG. 4 is a schematic view of the structure of the present utility model shown in FIG. 1 at a partially enlarged scale;

fig. 5 is a schematic view of a partial enlarged structure at B in fig. 2 according to the present utility model.

In the figure: the device comprises an injection mold main body, a mold injection cavity 2, a PLC 3, a mold upper cover lifting unit 4, a mounting hole 41, a hydraulic cylinder 42, a connecting column 43, a clamping frame 44, a clamping sliding chute 45, a mold upper cover sideslip unit 5, a sliding mold upper cover 51, a motor 52, a transmission shaft 53, a straight gear 54, a rack bar 55, a fixed bolt 56, a limiting block 57, a longitudinal sliding chute 58, a sliding bar 59, a supporting ring 6, a rubber sealing ring 7 and a temperature sensor 8.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5, the present embodiment provides a technical solution: an automatic cover opening mechanism for an injection mold comprises an injection mold main body 1, a mold upper cover lifting unit 4 and a mold upper cover sideslip unit 5;

injection mold body 1: a vertical mold injection cavity 2 is formed in the injection mold, an opening of the mold injection cavity 2 is upward, and a PLC 3 is installed at the front end of the injection mold main body 1;

die upper cover lifting unit 4: is installed on the upper side of the injection mold body 1;

die upper cover sideslip unit 5: the automatic lifting device comprises a sliding die upper cover 51, a motor 52, a transmission shaft 53, a spur gear 54, a rack rod 55 and a fixing bolt 56, wherein the sliding die upper cover 51 is longitudinally and slidably connected between two clamping frames 44 of a die upper cover lifting unit 4, the motor 52 is respectively embedded and installed at the front ends of the left side and the right side of the sliding die upper cover 51, an output shaft of the motor 52 is outwards arranged and is fixedly connected with one end of the transversely arranged transmission shaft 53, the spur gear 54 is fixedly connected with the other end of the transmission shaft 53, longitudinal rack rods 55 are vertically and symmetrically installed in clamping sliding grooves 45 in the clamping frames 44, two ends of the rack rods 55 are fixedly connected with the inner walls of the clamping sliding grooves 45 through the fixing bolts 56, the spur gear 54 is meshed and connected between the upper rack rods 55 and the lower rack rods 55, and the transverse width of the spur gear 54 is smaller than that of upper teeth of the rack rods 55, and the input end of the motor 52 is electrically connected with the output end of an external power supply through a PLC 3.

The injection mold main body 1 is used for setting up of a mold injection cavity 2, the mold injection cavity 2 is used for carrying out cooling molding on injected materials, the PLC controller 3 is used for controlling automatic opening and closing of the upper cover 51 of the sliding mold, the upper cover lifting unit 4 of the mold is used for controlling up-and-down movement of the cover body, accordingly, sealing or opening of a port of the mold injection cavity 2 can be controlled, the upper cover 51 of the sliding mold is used for sealing the port of the mold injection cavity 2, the motor 52 drives the spur gear 54 to rotate through the transmission shaft 53, the spur gear 54 is meshed with rack bars 55 on the upper side and the lower side, the rack bars 55 are fixedly connected with the inner wall of the clamping sliding groove 45 through the fixing bolts 56, and accordingly the spur gear 54 can roll back and forth between the upper and lower rack bars 55 while rotating, and then the upper cover 51 of the sliding mold is driven to slide backwards through the transmission shaft 53.

The die upper cover sideslip unit 5 further comprises a limiting block 57, wherein the limiting block 57 is fixedly connected to corner positions of the front end and the rear end of the rack rod 55, the upper end and the lower end of the limiting block 57 are respectively and fixedly connected with the upper rack rod 55 and the lower rack rod 55, and one side of the limiting block 57 is provided with an arc-shaped laminating groove. The limiting block 57 is used for limiting the transmission shaft 53, and preventing the transmission shaft 53 from moving too much distance, so that the sliding die upper cover 51 is separated from the clamping chute 45.

The side sliding unit 5 of the upper cover of the die further comprises a longitudinal sliding groove 58 and a sliding connection rod 59, the longitudinal sliding groove 58 is formed in the upper side of the inner portion of the clamping sliding groove 45 in the lifting unit 4 of the upper cover of the die, the longitudinal sliding connection rod 59 is fixedly connected to the left side and the right side of the upper end of the upper cover 51 of the sliding die, and the sliding connection rod 59 is slidably connected to the inner portion of the longitudinal sliding groove 58. The longitudinal sliding groove 58 is slidably connected to the slide contact rod 59, so that the slide die upper cover 51 can be smoothly slid in the longitudinal direction.

The die upper cover lifting unit 4 comprises mounting holes 41, hydraulic cylinders 42, connecting columns 43, clamping frames 44 and clamping sliding grooves 45, round mounting holes 41 are formed in four corners of the upper end of the injection die main body 1, the hydraulic cylinders 42 are embedded and mounted in the mounting holes 41, telescopic ends of the hydraulic cylinders 42 are fixedly connected with the lower ends of the vertical connecting columns 43, the upper ends of the connecting columns 43 are fixedly connected with the lower ends of the longitudinal clamping frames 44, longitudinal clamping sliding grooves 45 are formed in opposite sides of the clamping frames 44, and input ends of the hydraulic cylinders 42 are electrically connected with output ends of an external power supply through the PLC 3. The mounting hole 41 is used for mounting the hydraulic cylinder 42, the hydraulic cylinder 42 drives the clamping frame 44 to lift through the connecting column 43, the clamping frame 44 supports and clamps the end part of the upper cover 51 of the sliding die through the clamping chute 45, and the upper cover 51 of the sliding die can slide back and forth along the clamping chute 45.

The plastic injection mold further comprises a support ring 6 and a rubber sealing ring 7, wherein the annular support ring 6 is fixedly arranged at the upper port of the injection mold cavity 2, and the rubber sealing ring 7 is fixedly arranged at the upper end of the support ring 6. The supporting ring 6 is used for being attached to the lower end of the upper cover 51 of the sliding die, so that the upper port of the injection cavity 2 of the die is closed, and the rubber sealing ring 7 is used for sealing between the supporting ring 6 and the upper cover 51 of the sliding die.

The injection molding die further comprises a temperature sensor 8, the temperature sensor 8 is arranged at the front end of the injection molding die body 1, the sensing end of the temperature sensor 8 is adjacent to the inner wall of the injection molding cavity 2 of the die, the input end of the temperature sensor 8 is electrically connected with the output end of an external power supply through an external control switch group, and the output end of the temperature sensor 8 is connected with the signal input end of the PLC 3 through a data line. The temperature sensor 8 is used for sensing the temperature inside the mold injection cavity 2, so that when the temperature inside the mold injection cavity 2 falls to a proper position, the opening of the sliding mold upper cover 51 can be automatically controlled by the PLC 3.

The utility model provides an automatic cover opening mechanism for an injection mold, which has the following working principle:

when the device operates, the temperature sensor 8 monitors the temperature inside the mold injection cavity 2 and is connected with the signal input end of the PLC controller 3 through a data line, and when the temperature inside the mold injection cavity 2 is reduced to a proper position, the PLC controller 3 sends out a control signal and controls the automatic opening of the upper cover 51 of the sliding mold: the hydraulic cylinder 42 drives the clamping frame 44 to lift through the connecting column 43, the clamping frame 44 supports and clamps the end part of the upper cover 51 of the sliding die through the clamping chute 45, the upper cover 51 of the sliding die can slide back and forth along the clamping chute 45, the supporting ring 6 is used for being attached to the lower end of the upper cover 51 of the sliding die, the upper port of the injection cavity 2 of the die is closed, and the rubber sealing ring 7 is used for sealing between the supporting ring 6 and the upper cover 51 of the sliding die; the motor 52 drives the spur gear 54 to rotate through the transmission shaft 53, the spur gear 54 is meshed with rack bars 55 on the upper side and the lower side, the rack bars 55 are fixedly connected with the inner wall of the clamping chute 45 through fixing bolts 56, so that the spur gear 54 can roll back and forth between the upper rack bar 55 and the lower rack bar 55 while rotating, and further the transmission shaft 53 drives the sliding die upper cover 51 to slide backwards, the upper port of the die injection cavity 2 is exposed, and the injection products are conveniently taken out.

It should be noted that the control switch set disclosed in the above embodiment controls the operation of the temperature sensor 8, and the operation of the hydraulic cylinder 42 and the motor 52 by the PLC controller 3 are all commonly used in the art.

The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.

Claims

1. An automatic mechanism of uncapping for injection mold, its characterized in that: comprises an injection mold main body (1), a mold upper cover lifting unit (4) and a mold upper cover sideslip unit (5);

injection mold body (1): a vertical mold injection cavity (2) is formed in the mold injection cavity, an opening of the mold injection cavity (2) is upward, and a PLC (programmable logic controller) is arranged at the front end of the injection mold main body (1);

die upper cover lifting unit (4): is arranged on the upper side of the injection mold main body (1);

die upper cover sideslip unit (5): contain slip mould upper cover (51), motor (52), transmission shaft (53), straight-tooth wheel (54), rack bar (55) and fixing bolt (56), vertical sliding connection has slip mould upper cover (51) between two joint frames (44) of mould upper cover elevating unit (4), a motor (52) is installed in the embedding respectively in the left and right sides front end of slip mould upper cover (51), the output shaft of motor (52) outwards set up and with the one end fixed connection of transversely set up transmission shaft (53), the other end fixedly connected with straight-tooth wheel (54) of transmission shaft (53), vertical rack bar (55) are installed to the inside joint spout (45) of joint frame (44) up-down symmetry, the inner wall fixed connection of rack bar (55) is all passed through fixing bolt (56), the meshing connection of straight-tooth wheel (54) is between upper and lower two poles (55), and the transverse width of straight-tooth wheel (54) is less than the transverse width of tooth on rack bar (55), the electric power input end and the outside of electric controller (3) are connected with PLC.

2. The automatic cover opening mechanism for an injection mold according to claim 1, wherein: the die upper cover sideslip unit (5) further comprises a limiting block (57), the corner positions of the front end and the rear end of the rack rod (55) are fixedly connected with the limiting block (57), the upper end and the lower end of the limiting block (57) are fixedly connected with the upper rack rod (55) and the lower rack rod (55) respectively, and one side of the limiting block (57) is provided with an arc-shaped laminating groove.

3. The automatic cover opening mechanism for an injection mold according to claim 1, wherein: the die upper cover sideslip unit (5) further comprises a longitudinal sliding groove (58) and a sliding connection rod (59), the longitudinal sliding groove (58) is formed in the upper side of the inside of the clamping sliding groove (45) in the die upper cover lifting unit (4), the longitudinal sliding connection rod (59) is fixedly connected to the left side and the right side of the upper end of the sliding die upper cover (51), and the sliding connection rod (59) is in sliding connection with the inside of the longitudinal sliding groove (58).

4. The automatic cover opening mechanism for an injection mold according to claim 1, wherein: the die upper cover lifting unit (4) comprises mounting holes (41), hydraulic cylinders (42), connecting columns (43) and clamping frames (44) and clamping sliding grooves (45), the four corners of the upper end of the injection die main body (1) are provided with one circular mounting hole (41), each mounting hole (41) is internally embedded and provided with a hydraulic cylinder (42), the telescopic end of each hydraulic cylinder (42) is fixedly connected with the lower end of each vertical connecting column (43), the upper ends of the connecting columns (43) are fixedly connected with the lower ends of the corresponding clamping frames (44), the opposite sides of the clamping frames (44) are provided with longitudinal clamping sliding grooves (45), and the input end of each hydraulic cylinder (42) is electrically connected with the output end of an external power supply through a PLC (3).

5. The automatic cover opening mechanism for an injection mold according to claim 1, wherein: the plastic injection mold further comprises a supporting ring (6) and a rubber sealing ring (7), wherein the annular supporting ring (6) is fixedly arranged at the upper port of the injection cavity (2) of the mold, and the rubber sealing ring (7) is fixedly arranged at the upper end of the supporting ring (6).

6. The automatic cover opening mechanism for an injection mold according to claim 1, wherein: the injection molding die comprises a die body (1) and is characterized by further comprising a temperature sensor (8), wherein the front end of the die body (1) is provided with the temperature sensor (8), the sensing end of the temperature sensor (8) is adjacent to the inner wall of the die injection cavity (2), the input end of the temperature sensor (8) is electrically connected with the output end of an external power supply through an external control switch group, and the output end of the temperature sensor (8) is connected with the signal input end of the PLC (3) through a data line.