An injection mold for producing plastic rings

Abstract

The present invention discloses an injection mold for producing plastic rings, comprising a base, the upper side wall of the base is fixedly connected with a lower mold, the upper side wall of the lower mold is provided with an injection cavity, the upper side wall of the lower mold is provided with a ring-shaped permeation groove, the lower mold is provided with a groove located below the injection cavity and connected with the permeation groove, the inner wall of the permeation groove is slidably connected with a load-bearing plate, and the lower side wall of the load-bearing plate is symmetrically fixedly connected with a pressure rod extending to the inside of the groove. The present invention moves the movable plate to the left or right, so that the movable plate drives the push rod, the fixed plate and the upper mold to move upward or downward, thereby quickly completing the closing and opening of the upper mold, effectively improving the efficiency of injection molding and demoulding, and triggering the pressure sensor to transmit information to the PLC controller in the control chamber, thereby controlling the alarm to sound, reminding the operator that the device is leaking, and effectively avoiding unnecessary safety accidents and property losses.

Description

Technical Field

[0001] The invention relates to the technical field of injection molds, and in particular to an injection mold for producing plastic rings. Background Art

[0002] Injection molding is a method of producing industrial products. Products usually use rubber injection molding and plastic injection molding. Injection molding can also be divided into injection molding and die casting. Molds are various molds and tools used in industrial production to obtain the desired products by injection molding, blow molding, extrusion, die casting or forging molding, smelting, stamping, etc. In short, molds are tools used to make molded objects. This tool is composed of various parts, and different molds are composed of different parts. It mainly realizes the processing of the shape of the object by changing the physical state of the molded material. It is known as the "mother of industry".

[0003] Existing injection molds for producing plastic rings lack leakage alarm devices, which may cause safety accidents and property losses, and the closing and opening of the molds are not convenient enough, which in turn affects work efficiency.

[0004] For this reason, a kind of injection mold for producing plastic ring is proposed. Summary of the invention

[0005] The purpose of the present invention is to solve the problems in the background technology and to propose an injection mold for producing plastic rings.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] An injection mold for producing a plastic ring, comprising a base, the upper side wall of the base is fixedly connected to a lower mold, the upper side wall of the lower mold is provided with an injection cavity, the upper side wall of the lower mold is provided with an annular infiltration groove, the lower mold is provided with a groove located below the injection cavity and connected to the infiltration groove, the inner wall of the infiltration groove is slidably connected to a load-bearing plate, the lower side wall of the load-bearing plate is symmetrically fixedly connected to a pressure rod extending into the groove, the lower side walls of the two pressure rods are fixedly connected to a pressure sensor, a buffer mechanism is provided inside the groove, the upper side wall of the lower mold is provided with an annular sealing groove located outside the infiltration groove, the upper side wall of the base is symmetrically fixedly connected to a pressure rod located below the injection cavity, The guide rods on the outside of the mold, the outer walls of the two guide rods are jointly slidably sleeved with an upper mold, the upper side wall of the upper mold is fixedly connected with a fixing plate, the front side wall of the fixing plate is fixedly connected with a push rod, the upper side wall of the upper mold is provided with a sealing mechanism, the top ends of the two guide rods are jointly fixedly connected with a mounting plate, the lower side wall of the mounting plate is symmetrically fixedly connected with a vertical plate, the left side wall of the vertical plate on the right is fixedly connected with a motor, the driving end of the motor is fixedly connected with a threaded rod rotatably connected to the left vertical plate, the outer wall of the threaded rod is threadedly connected with a movable plate slidingly sleeved on the outer wall of the push rod, and the upper side wall of the movable plate is fixedly connected with a sliding rod slidably connected to the lower side wall of the mounting plate.

[0008] Preferably, the buffer mechanism includes sleeves symmetrically fixedly connected to the inner bottom wall of the groove, the upper side walls of the two sleeves are slidably inserted with support rods, the top ends of the two support rods are fixedly connected to support plates that are in contact with the pressure sensor, springs are fixedly connected between the lower ends of the support rods and the inner bottom wall of the sleeves on the same side, and the outer walls of the support rods on the same side are symmetrically rotatably connected to rotating rods. The inner bottom wall of the groove is symmetrically fixedly connected to vertical plates respectively located on the outsides of the two sleeves, and the two vertical plates on the same side are opposite to each other. Four sliders are symmetrically slidably connected on both sides, the outer walls of the two sliders on the same side are rotatably connected with rotating rod 2, the ends of the two rotating rods 2 on the same side away from the vertical plate are rotatably connected with a buffer plate together, the buffer plate and the end of rotating rod 1 on the same side are rotatably connected, the outer wall of the vertical plate on the same side is symmetrically fixedly connected with a baffle plate located outside the two sliders, a spring 1 is fixedly connected between the slider and the baffle plate on the same side, an alarm is installed on the right outer wall of the lower mold, and a power supply and a control compartment are installed on the outer wall of the lower mold.

[0009] Preferably, a PLC controller is provided in the control compartment, and the PLC controller is electrically connected to the power supply, the pressure sensor and the alarm.

[0010] Preferably, the sealing mechanism includes an insert plate symmetrically and slidably inserted on the upper mold, the lower ends of the two insert plates are commonly fixedly connected to a sealing block slidably connected to the inside of the upper mold, the sealing block matches the annular sealing groove, the top ends of the two insert plates are commonly fixedly connected to a connecting plate slidably sleeved on the outer wall of the fixed plate, the outer wall of the connecting plate is symmetrically fixedly connected to an ear plate, the upper side wall of the upper mold is symmetrically fixedly connected to a hydraulic cylinder located on the outside of the upper mold, and the end of the hydraulic cylinder on the same side away from the upper mold is fixedly connected to a locking block fixedly sleeved on the outer wall of the ear plate.

[0011] Preferably, a bearing is fixedly embedded in the right side wall of the vertical plate located on the left side, and the inner ring of the bearing is fixedly connected to the outer wall of the threaded rod.

[0012] Preferably, a through guide groove matching the stop rod is provided on the front side wall of the movable plate, and the guide groove is inclined with the left side lower and the right side higher.

[0013] Preferably, a sliding groove matching the sliding rod is formed on the lower side wall of the mounting plate.

[0014] Compared with the prior art, the advantages of the injection mold for producing plastic rings proposed by the present invention are:

[0015] A lower mold, an infiltration groove, a load-bearing plate, a pressure rod, a pressure sensor and a buffer mechanism are provided. When leakage occurs during the injection molding process, the molten plastic material will flow into the load-bearing plate in the infiltration groove, thereby driving the pressure rod and the pressure sensor to move downward, so that the pressure sensor is squeezed and contacted with the support plate, thereby triggering the pressure sensor, transmitting information to the PLC controller in the control chamber, and then controlling the alarm to sound, reminding the operator that the device has leaked, effectively avoiding unnecessary safety accidents and property losses. The buffer mechanism can transmit the pressure on the pressure sensor to the spring one and the spring two through the support rod, the rotating rod one and the rotating rod two for release, thereby effectively protecting the pressure sensor and increasing its service life;

[0016] A hydraulic cylinder, a plug plate, an annular sealing groove, an ear plate and a sealing block are provided. When the upper mold and the lower mold are closed, the hydraulic cylinder is started, and the driving end of the hydraulic cylinder drives the locking block to move downward, thereby driving the ear plate, the connecting plate, the plug plate and the sealing block to move downward, so that the sealing block moves into the annular sealing groove, thereby ensuring the sealing performance when the upper mold and the lower mold are closed, thereby improving the quality of injection molding;

[0017] A fixed plate, a stopper, a motor, a threaded rod and a moving plate are arranged, and the motor is started. The driving end of the motor drives the threaded rod to rotate clockwise or counterclockwise, thereby driving the moving plate to move left or right, so that the moving plate drives the stopper, the fixed plate and the upper mold to move upward or downward, thereby quickly completing the closing and opening of the upper mold, and effectively improving the efficiency of injection molding and demoulding;

[0018] In summary, the present invention moves the movable plate to the left or right, so that the movable plate drives the support rod, the fixed plate and the upper mold to move upward or downward, thereby quickly completing the closing and opening of the upper mold, effectively improving the efficiency of injection molding and demolding, and triggering the pressure sensor to transmit information to the PLC controller in the control chamber, thereby controlling the alarm to sound, reminding the operator that the device is leaking, effectively avoiding unnecessary safety accidents and property losses. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic structural diagram of an injection mold for producing a plastic ring proposed by the present invention;

[0020] Figure 2 A three-dimensional diagram of a sealing block in an injection mold for producing a plastic ring proposed by the present invention;

[0021] Figure 3 A cross-sectional view of a lower mold in an injection mold for producing a plastic ring proposed by the present invention;

[0022] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0023] In the figure: 1 base, 2 lower mold, 3 injection cavity, 4 penetration groove, 5 load-bearing plate, 6 pressure rod, 7 pressure sensor, 8 sleeve, 9 support rod, 10 rotating rod 1, 11 vertical plate, 12 slider, 13 rotating rod 2, 14 buffer plate, 15 baffle, 16 spring 1, 17 support plate, 18 spring 2, 19 annular sealing groove, 20 guide rod, 21 upper mold, 22 sealing block, 23 plug plate, 24 connecting plate, 25 ear plate, 26 hydraulic cylinder, 27 locking block, 28 fixed plate, 29 push rod, 30 mounting plate, 31 vertical plate, 32 motor, 33 threaded rod, 34 slide rod, 35 bearing, 36 movable plate, 37 guide groove. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0025] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0026] Reference Figure 1-4 , an injection mold for producing a plastic ring, comprising a base 1, a lower mold 2 is fixedly connected to the upper side wall of the base 1, an injection cavity 3 is provided on the upper side wall of the lower mold 2, an annular infiltration groove 4 is provided on the upper side wall of the lower mold 2, a groove located below the injection cavity 3 and connected to the infiltration groove 4 is provided in the lower mold 2, a load-bearing plate 5 is slidably connected to the inner wall of the infiltration groove 4, a pressure rod 6 extending to the inside of the groove is symmetrically fixedly connected to the lower side wall of the load-bearing plate 5, a pressure sensor 7 is fixedly connected to the lower side walls of the two pressure rods 6, a buffer mechanism is provided inside the groove, the buffer mechanism comprises a sleeve 8 symmetrically fixedly connected to the inner bottom wall of the groove, a support rod 9 is slidably inserted on the upper side walls of the two sleeves 8, a support plate 17 abutting against the pressure sensor 7 is fixedly connected to the top of the two support rods 9, and a spring 18 is fixedly connected between the lower end of the support rod 9 on the same side and the inner bottom wall of the sleeve 8;

[0027] The outer walls of the support rods 9 on the same side are symmetrically connected to the rotating rods 10 for rotation, the inner bottom wall of the groove is symmetrically fixedly connected to the vertical plates 11 respectively located on the outside of the two sleeves 8, the two vertical plates 11 on the same side are symmetrically slidably connected to the four sliders 12 on the opposite sides, the outer walls of the two sliders 12 on the same side are rotatably connected to the rotating rods 13, the ends of the two rotating rods 13 on the same side away from the vertical plates 11 are rotatably connected to the buffer plates 14 together, the buffer plates 14 on the same side and the ends of the rotating rods 10 are rotatably connected, the outer walls of the vertical plates 11 on the same side are symmetrically fixedly connected to the baffles 15 located on the outside of the two sliders 12, the sliders 12 and the baffles 15 on the same side are fixedly connected with springs 16, and an alarm is installed on the right outer wall of the lower mold 2;

[0028] The outer wall of the lower mold 2 is installed with a power supply and a control chamber, and a PLC controller is arranged in the control chamber. The PLC controller is electrically connected with the power supply, the pressure sensor 7 and the alarm. When leakage occurs during the injection molding process, the molten plastic material will flow into the load-bearing plate 5 in the infiltration groove 4, thereby driving the pressure rod 6 and the pressure sensor 7 to move downward, so that the pressure sensor 7 is squeezed and contacted with the support plate 17, thereby triggering the pressure sensor 7, transmitting the information to the PLC controller in the control chamber, and then controlling the alarm to sound, reminding the operator that the device has leaked, effectively avoiding unnecessary safety accidents and property losses. The setting of the buffer mechanism can transmit the pressure on the pressure sensor 7 to the spring 16 and the spring 2 18 through the support rod 9, the rotating rod 10 and the rotating rod 2 13 for release, thereby effectively protecting the pressure sensor 7 and improving its service life;

[0029] The upper side wall of the lower mold 2 is provided with an annular sealing groove 19 located on the outer side of the penetration groove 4, the upper side wall of the base 1 is symmetrically fixedly connected with a guide rod 20 located on the outer side of the lower mold 2, the outer walls of the two guide rods 20 are slidably sleeved with an upper mold 21, the upper side wall of the upper mold 21 is fixedly connected with a fixed plate 28, the front side wall of the fixed plate 28 is fixedly connected with a push rod 29, the upper side wall of the upper mold 21 is provided with a sealing mechanism, the sealing mechanism includes a plug plate 23 symmetrically slidably inserted on the upper mold 21, the lower ends of the two plug plates 23 are commonly fixedly connected with a sealing block 22 slidably connected to the inside of the upper mold 21, the sealing block 22 and the annular sealing groove 19 match, the top ends of the two plug plates 23 are commonly fixedly connected with a connecting plate 24 slidably sleeved on the outer wall of the fixing plate 28, the outer wall of the connecting plate 24 is symmetrically fixedly connected with an ear plate 25, and the upper side wall of the upper mold 21 is symmetrically fixedly connected with a hydraulic cylinder 26 located on the outer side of the upper mold 21;

[0030] The end of the hydraulic cylinder 26 located on the same side away from the upper mold 21 is fixedly connected to a locking block 27 fixedly sleeved on the outer wall of the ear plate 25, the top ends of the two guide rods 20 are commonly fixedly connected to a mounting plate 30, the lower side wall of the mounting plate 30 is symmetrically fixedly connected to a vertical plate 31, the left side wall of the vertical plate 31 located on the right side is fixedly connected to a motor 32, the driving end of the motor 32 is fixedly connected to a threaded rod 33 rotatably connected to the left vertical plate 31, the right side wall of the vertical plate 31 located on the left side is fixedly embedded with a bearing 35, the inner ring of the bearing 35 is fixedly connected to the outer wall of the threaded rod 33, the outer wall of the threaded rod 33 is threadedly connected to a moving plate 36 slidably sleeved on the outer wall of the push rod 29, the front side wall of the moving plate 36 is provided with a penetrating guide groove 37 matching the push rod 29, and the guide groove 37 is inclined with a left lower and a right higher setting;

[0031] The upper side wall of the movable plate 36 is fixedly connected with a slide bar 34 slidably connected to the lower side wall of the mounting plate 30, and the lower side wall of the mounting plate 30 is provided with a slide groove matching the slide bar 34. When the upper mold 21 and the lower mold 2 are closed, the hydraulic cylinder 26 is started, and the driving end of the hydraulic cylinder 26 drives the locking block 27 to move downward, thereby driving the ear plate 25, the connecting plate 24, the plug plate 23 and the sealing block 22 to move downward, so that the sealing block 22 moves into the annular sealing groove 19, thereby ensuring the sealing of the upper mold 21 and the lower mold 2 when they are closed, thereby improving the quality of injection molding, starting the motor 32, and the driving end of the motor 32 drives the threaded rod 33 to rotate clockwise or counterclockwise, thereby driving the movable plate 36 to move left or right, so that the movable plate 36 drives the push rod 29, the fixed plate 28 and the upper mold 21 to move upward or downward, thereby quickly completing the closing and opening of the upper mold 21, effectively improving the efficiency of injection molding and demoulding.

[0032] It is further explained that the above-mentioned fixed connection should be understood in a broad sense unless otherwise clearly specified and limited. For example, it can be welding, gluing, or one-piece molding, etc., which are conventional means well known to those skilled in the art.

[0033] The operating principle of the present invention is now described as follows:

[0034] During use, when leakage occurs during the injection molding process, the molten plastic material will flow into the load-bearing plate 5 in the infiltration groove 4, thereby driving the pressure rod 6 and the pressure sensor 7 to move downward, so that the pressure sensor 7 is squeezed and contacted with the support plate 17, thereby triggering the pressure sensor 7, transmitting the information to the PLC controller in the control chamber, and then controlling the alarm to sound, reminding the operator that the device has leaked, effectively avoiding unnecessary safety accidents and property losses. The setting of the buffer mechanism can transmit the pressure on the pressure sensor 7 through the support rod 9, the rotating rod 10 and the rotating rod 2 13 to the spring 16 and the spring 2 18 for release, thereby effectively protecting the pressure sensor 7 and increasing its service life;

[0035] When the upper mold 21 and the lower mold 2 are closed, the hydraulic cylinder 26 is started, and the driving end of the hydraulic cylinder 26 drives the locking block 27 to move downward, thereby driving the ear plate 25, the connecting plate 24, the plug plate 23 and the sealing block 22 to move downward, so that the sealing block 22 moves into the annular sealing groove 19, thereby ensuring the sealing of the upper mold 21 and the lower mold 2 when they are closed, thereby improving the quality of injection molding, and starting the motor 32, and the driving end of the motor 32 drives the threaded rod 33 to rotate clockwise or counterclockwise, thereby driving the movable plate 36 to move left or right, so that the movable plate 36 drives the push rod 29, the fixed plate 28 and the upper mold 21 to move upward or downward, thereby quickly completing the closing and opening of the upper mold 21, and effectively improving the efficiency of injection molding and demolding.

[0036] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An injection mold for producing a plastic ring, comprising a base (1), characterized in that: The upper side wall of the base (1) is fixedly connected to a lower mold (2), an injection cavity (3) is formed on the upper side wall of the lower mold (2), an annular infiltration groove (4) is formed on the upper side wall of the lower mold (2), a groove located below the injection cavity (3) and connected to the infiltration groove (4) is formed in the lower mold (2), a load-bearing plate (5) is slidably connected to the inner wall of the infiltration groove (4), a pressure rod (6) extending into the interior of the groove is symmetrically fixedly connected to the lower side wall of the load-bearing plate (5), a pressure sensor (7) is fixedly connected to the lower side walls of the two pressure rods (6), a buffer mechanism is provided inside the groove, an annular sealing groove (19) is formed on the upper side wall of the lower mold (2), a guide rod (20) located outside the lower mold (2) is symmetrically fixedly connected to the upper side wall of the base (1), the outer sides of the two guide rods (20) are The guide rods (20) are provided with an upper mold (21) and a common sliding sleeve on the wall; the upper side wall of the upper mold (21) is fixedly connected to a fixed plate (28); the front side wall of the fixed plate (28) is fixedly connected to a push rod (29); the upper side wall of the upper mold (21) is provided with a sealing mechanism; the top ends of the two guide rods (20) are commonly fixedly connected to a mounting plate (30); the lower side wall of the mounting plate (30) is symmetrically fixedly connected to a vertical plate (31); the left side wall of the vertical plate (31) on the right side is fixedly connected to a motor (32); the driving end of the motor (32) is fixedly connected to a threaded rod (33) rotatably connected to the left vertical plate (31); the outer wall of the threaded rod (33) is threadedly connected to a movable plate (36) slidably sleeved on the outer wall of the push rod (29); the upper side wall of the movable plate (36) is fixedly connected to a sliding rod (34) slidably connected to the lower side wall of the mounting plate (30); The sealing mechanism comprises an insert plate (23) symmetrically and slidably inserted on the upper die (21), the lower ends of the two insert plates (23) are commonly and fixedly connected with a sealing block (22) slidably connected to the inside of the upper die (21), the sealing block (22) matches the annular sealing groove (19), the top ends of the two insert plates (23) are commonly and fixedly connected with a connecting plate (24) slidably sleeved on the outer wall of the fixed plate (28), the outer wall of the connecting plate (24) is symmetrically and fixedly connected with an ear plate (25), the upper side wall of the upper die (21) is symmetrically and fixedly connected with a hydraulic cylinder (26) located outside the upper die (21), and the end of the hydraulic cylinder (26) located on the same side away from the upper die (21) is fixedly connected with a locking block (27) fixedly sleeved on the outer wall of the ear plate (25); The front side wall of the movable plate (36) is provided with a penetrating guide groove (37) matching the stop rod (29), and the guide groove (37) is arranged to be inclined with the left side lower and the right side higher.

2. The injection mold for producing a plastic ring according to claim 1, characterized in that: The buffer mechanism comprises a sleeve (8) symmetrically fixedly connected to the inner bottom wall of the groove, the upper side walls of the two sleeves (8) are slidably inserted with a support rod (9), the top ends of the two support rods (9) are fixedly connected with a support plate (17) that contacts the pressure sensor (7), the lower ends of the support rods (9) and the inner bottom wall of the sleeve (8) on the same side are fixedly connected with a spring 2 (18), the outer walls of the support rods (9) on the same side are symmetrically rotatably connected with a rotating rod 1 (10), the inner bottom wall of the groove is symmetrically fixedly connected with vertical plates (11) respectively located on the outer sides of the two sleeves (8), and the two vertical plates (11) on the same side are symmetrically slidably connected with four springs on the opposite sides. The invention relates to a sliding block (12), the outer walls of the two sliding blocks (12) located on the same side are both rotatably connected to the second rotating rod (13), the ends of the two rotating rods (13) located on the same side away from the vertical plate (11) are both rotatably connected to the buffer plate (14), the buffer plate (14) and the end of the first rotating rod (10) located on the same side are both rotatably connected, the outer wall of the vertical plate (11) located on the same side is symmetrically fixedly connected to the baffle plate (15) located on the outer sides of the two sliding blocks (12), and the sliding blocks (12) and the baffle plate (15) located on the same side are both fixedly connected to the first spring (16), the right outer wall of the lower mold (2) is equipped with an alarm, and the outer wall of the lower mold (2) is equipped with a power supply and a control compartment.

3. The injection mold for producing a plastic ring according to claim 2, characterized in that: A PLC controller is provided in the control compartment, and the PLC controller is electrically connected to a power source, a pressure sensor (7) and an alarm.

4. The injection mold for producing a plastic ring according to claim 1, characterized in that: A bearing (35) is fixedly embedded in the right side wall of the vertical plate (31) located on the left side, and the inner ring of the bearing (35) is fixedly connected to the outer wall of the threaded rod (33).

5. The injection mold for producing a plastic ring according to claim 1, characterized in that: A sliding groove matching the sliding rod (34) is formed on the lower side wall of the mounting plate (30).

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