Safety guard for injection molding machine

Abstract

The utility model relates to injection molding machine protection technical field discloses a safety device of injection molding machine, including two protective door plates, the upper end of two protective door plates is equipped with switch spare, the bottom of two protective door plates is equipped with support spare, the opposite side end of two protective door plates is equipped with buffer spare, the side end of each protective door plate all is set up with a plurality of recess, the bottom of a plurality of recess all sets up with thread hole, the inside of protective door plate is equipped with net frame, the inside side wall of net frame is fixedly installed with buffer net, the side end of net frame is fixedly connected with a plurality of lock piece, technical effect is to take buffer net as the first barrier between foreign matter and observation window, intercepts the plastic particle, the broken block that pops out from the mold gap high pressure, reduces the kinetic energy of foreign matter impact observation window, greatly reduces the possibility that observation window breaks because of foreign matter impact, prolongs the service life of observation window.

Description

Technical Field

[0001] This utility model relates to the field of injection molding machine protection technology, specifically a safety protection device for injection molding machines. Background Technology

[0002] Injection molding machines are a type of molding equipment that uses plastic molds to produce plastic products of various shapes from thermoplastic or thermosetting plastics. Injection molding machine protection mainly focuses on the protection of operators.

[0003] In the injection molding process, the mold clamping zone is a critical area where molten plastic is injected into the mold under high pressure (usually 100-300MPa). Long-term use of the mold leads to an increase in the gap between the mold mating surfaces, and molten plastic may spray out from the gap. Foreign objects or high-temperature degradation products in the plastic raw material may form high-speed splashes. The observation windows on traditional protective doors are mostly made of ordinary glass or protective glass with limited strength. Ordinary glass is easily broken under the impact of foreign objects such as high-speed ejected plastic particles and fragments. Although the protective glass with slightly higher strength has a certain impact resistance, it will also be at risk of breaking after long-term exposure to foreign object impacts. Once the observation window is broken, it will not only expose the internal structure of the injection molding machine and increase the risk of equipment damage, but also pose a serious threat to the personal safety of the operators. Therefore, we propose a new type of safety protection device for injection molding machines. Utility Model Content

[0004] This utility model provides the following technical solution: a safety protection device for an injection molding machine, comprising two protective door panels, a switch component at the upper end of the two protective door panels, a support component at the bottom end of the two protective door panels, and a buffer component at the opposite side end of the two protective door panels. Each protective door panel has multiple grooves at its side end, and threaded holes at the bottom end of each of the multiple grooves. A mesh frame is provided inside each protective door panel, and a buffer mesh is fixedly installed on the inner side wall of the mesh frame. Multiple locking plates are fixedly connected to the side end of the mesh frame, and a fixing bolt is threaded to the upper end of each of the multiple locking plates, with the fixing bolt penetrating the side wall of the locking plate. A material collecting component is provided at the bottom end of each protective door panel, and a fixing component is provided at the side end of each protective door panel.

[0005] Preferably, the buffer net includes a first buffer net and a second buffer net, both of which are fixedly installed on the inner wall of the frame, and the mesh diameter of the first buffer net is greater than that of the second buffer net.

[0006] Preferably, each of the aggregate components includes a collection box, two limiting grooves and two limiting blocks. The two limiting grooves are both formed on the opposite sidewalls of the mesh frame, and the two limiting blocks are slidably connected in the two limiting grooves respectively. The collection box is fixedly installed on the sidewall between the two limiting blocks.

[0007] Preferably, each of the fixing components includes a T-shaped rod, a rotating plate, and two magnets. The T-shaped rod is fixedly installed on the side end of the protective door panel, the rotating plate is rotatably installed on the outer surface of the T-shaped rod, and the two magnets are respectively fixedly installed on the side wall between the magnet and the collection box.

[0008] Preferably, the switch includes an upper mounting plate, an electric slide rail, and two electric sliders. The electric slide rail and the two electric sliders are both located inside the upper mounting plate. The two electric sliders are slidably mounted on the outer surface of the electric slide rail, and the two electric sliders are respectively fixedly mounted on the upper ends of the two protective door panels.

[0009] Preferably, the support includes a lower mounting plate and two supporting movable rods, the two supporting movable rods are respectively fixedly installed at the bottom ends of the two protective door panels, and both supporting movable rods are located inside the lower mounting plate.

[0010] Preferably, the buffer component includes a receiving groove, a buffer plate, and multiple buffer springs. The receiving groove is formed at the side end of the protective door panel, the multiple buffer springs are fixedly installed at the side end of the receiving groove, and the buffer plate is fixedly installed at one end of the multiple buffer springs.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This invention uses a buffer mesh as the first barrier between foreign objects and the observation window. Its fine and elastic structure directly intercepts plastic particles and fragments ejected under high pressure from mold gaps. When a foreign object impacts the buffer mesh, the mesh deforms to absorb some of the impact force, reducing the kinetic energy of the impact and significantly decreasing the likelihood of the observation window breaking due to the impact. This extends the lifespan of the observation window and distributes the concentrated impact force of the foreign object across multiple mesh wires. Even with large plastic fragments, the force is not concentrated on a single point on the observation window, preventing cracks or breakage due to excessive localized stress and maintaining the integrity of the observation window. Attached Figure Description

[0013] Figure 1 This is a front view structural diagram of the present invention;

[0014] Figure 2 This is a schematic diagram of the rear view structure of this utility model;

[0015] Figure 3 This is a front sectional view of the present invention.

[0016] Figure 4 This is a schematic diagram of the protective door panel and buffer mesh structure of this utility model.

[0017] In the diagram: 1. Protective door panel; 2. Lock plate; 3. Wire mesh frame; 4. Buffer mesh; 401. First buffer mesh; 402. Second buffer mesh; 5. Fixing bolt; 6. Collector; 601. Collection box; 602. Limiting groove; 603. Limiting block; 7. Fixing component; 701. T-shaped rod; 702. Rotating plate; 703. Magnet; 8. Switch; 801. Upper mounting plate; 802. Electric slide rail; 803. Electric slider; 9. Support component; 901. Lower mounting plate; 902. Support moving rod; 10. Buffer component; 101. Receiving groove; 102. Buffer plate; 103. Buffer spring; 11. Groove; 12. Threaded hole.

[0018] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiments of this utility model. However, this is only for illustrative purposes and is not intended to limit this utility model to the specific structure, device and environment. According to specific needs, those skilled in the art can adjust or modify these devices and environments, and such adjustments or modifications are still included in the scope of the appended claims. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] like Figure 1-4 As shown, this utility model provides a technical solution: a safety protection device for an injection molding machine, including two protective door panels 1, a switch 8 at the upper end of the two protective door panels 1, a support 9 at the bottom end of the two protective door panels 1, a buffer 10 at the opposite side end of the two protective door panels 1, multiple grooves 11 at the side end of each protective door panel 1, threaded holes 12 at the bottom end of each of the multiple grooves 11, a mesh frame 3 inside the protective door panel 1, a buffer mesh 4 fixedly installed on the inner side wall of the mesh frame 3, multiple locking pieces 2 fixedly connected to the side end of the mesh frame 3, a fixing bolt 5 threadedly connected to the upper end of each of the multiple locking pieces 2, the fixing bolt 5 penetrating the side wall of the locking piece 2, a material collecting piece 6 at the bottom end of each protective door panel 1, and a fixing piece 7 at the side end of each protective door panel 1.

[0021] In an optional embodiment: the buffer net 4 includes a first buffer net 401 and a second buffer net 402, both of which are fixedly installed on the inner wall of the frame 3, and the mesh diameter of the first buffer net 401 is greater than that of the second buffer net 402.

[0022] It should be noted that the first buffer net 401 and the second buffer net 402 are made of transparent or semi-transparent high-strength polymer material, which will not affect the normal use of the observation window. The first buffer net 401 buffers large foreign objects, and the second buffer net 402 buffers small foreign objects.

[0023] In an optional embodiment: each collection component 6 includes a collection box 601, two limiting grooves 602 and two limiting blocks 603. The two limiting grooves 602 are both formed on opposite side walls of the wire frame 3. The two limiting blocks 603 are slidably connected in the two limiting grooves 602 respectively. The collection box 601 is fixedly installed on the side wall between the two limiting blocks 603.

[0024] It should be noted that the foreign object slides down the side wall of the buffer net 4 and enters the collection box 601 below, which facilitates the collection and processing of the foreign object.

[0025] In an optional embodiment: each fixing member 7 includes a T-shaped rod 701, a rotating plate 702 and two magnets 703. The T-shaped rod 701 is fixedly installed on the side end of the protective door panel 1, the rotating plate 702 is rotatably installed on the outer surface of the T-shaped rod 701, and the two magnets 703 are respectively fixedly installed on the side wall between the magnets 703 and the collection box 601.

[0026] It should be noted that the two magnets 703 are opposite poles, and when they are close together, they can generate a certain attraction, which can fix the collection box 601 in place. When cleaning later, you only need to rotate the rotating plate 702 to separate the two magnets 703 and then you can take out the collection box 601 for cleaning.

[0027] In an optional embodiment: the switch 8 includes an upper mounting plate 801, an electric slide rail 802 and two electric sliders 803. The electric slide rail 802 and the two electric sliders 803 are both located inside the upper mounting plate 801. The two electric sliders 803 are slidably mounted on the outer surface of the electric slide rail 802. The two electric sliders 803 are respectively fixedly mounted on the upper ends of the two protective door panels 1.

[0028] It should be noted that the electric slide rail 802 can cause the electric slider 803 to move to both sides or to the middle at the same time, thereby opening and closing the two protective door panels 1.

[0029] In an optional embodiment: the support member 9 includes a lower mounting plate 901 and two support movable pillars 902, which are respectively fixedly installed at the bottom ends of the two protective door panels 1, and both support movable pillars 902 are located inside the lower mounting plate 901.

[0030] It should be noted that the support for the movable support 902 can support the protective door panel 1 and increase the ease of movement of the protective door panel 1.

[0031] In an optional embodiment: the buffer 10 includes a receiving groove 101, a buffer plate 102 and a plurality of buffer springs 103. The receiving groove 101 is formed at the side end of the protective door panel 1, the plurality of buffer springs 103 are fixedly installed at the side end of the receiving groove 101, and the buffer plate 102 is fixedly installed at one end of the plurality of buffer springs 103.

[0032] It should be noted that when the protective door panel 1 is closed, the interaction between the buffer spring 103 and the buffer plate 102 can reduce the impact of the two protective door panels 1 colliding together, protecting the door while also reducing noise.

[0033] In practical use, the working principle of this utility model is as follows:

[0034] Multiple locking plates 2 on the side wall of the mesh frame 3 align with multiple grooves 11 on the protective door panel 1, and the locking plates 2 are inserted into the grooves 11. Then, the fixing bolts 5 are rotated into the threaded holes 12 to fix the mesh frame 3 and the protective door panel 1 together. This facilitates replacement when the buffer mesh 4 is damaged. When the mold is worn or deformed, plastic particles, fragments, and other foreign objects are ejected from the gaps when the molten plastic is injected into the mold cavity under high pressure. These foreign objects impact the buffer mesh 4, and the buffer mesh 4 absorbs part of the impact force through deformation, reducing the kinetic energy of the foreign objects impacting the observation window. This greatly reduces the possibility of the observation window breaking due to the impact of foreign objects and extends the observation period. To extend the window's lifespan, the buffer net 4 is made of transparent or semi-transparent high-strength polymer material, ensuring it doesn't affect the normal use of the observation window. Foreign objects slide down the side wall of the buffer net 4 and enter the collection box 601 below, facilitating their collection and processing. The electric slide rail 802 enables the electric slider 803 to move simultaneously to the sides or towards the center, thus opening and closing the two protective door panels 1. When the protective door panels 1 are closed, the interaction between the buffer spring 103 and the buffer plate 102 reduces the impact of the two protective door panels 1 colliding, protecting the door while also reducing noise.

[0035] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A safety protection device for an injection molding machine, comprising two protective door panels (1), characterized in that: The upper ends of the two protective door panels (1) are provided with switch components (8), the lower ends of the two protective door panels (1) are provided with support components (9), the opposite sides of the two protective door panels (1) are provided with buffer components (10), each protective door panel (1) has multiple grooves (11) on its side, the bottom of the multiple grooves (11) is provided with threaded holes (12), the interior of the protective door panel (1) is provided with a mesh frame (3), the inner side wall of the mesh frame (3) is fixedly installed with a buffer mesh (4), the side end of the mesh frame (3) is fixedly connected with multiple locking pieces (2), the upper ends of the multiple locking pieces (2) are threadedly connected with fixing bolts (5), the fixing bolts (5) penetrate the side wall of the locking pieces (2), each protective door panel (1) has a material collection component (6) at its bottom, and each protective door panel (1) has a fixing component (7) on its side.

2. The safety protection device for an injection molding machine according to claim 1, characterized in that: The buffer net (4) includes a first buffer net (401) and a second buffer net (402). The first buffer net (401) and the second buffer net (402) are both fixedly installed on the inner wall of the frame (3). The mesh diameter of the first buffer net (401) is greater than that of the second buffer net (402).

3. The safety protection device for an injection molding machine according to claim 1, characterized in that: Each of the collection components (6) includes a collection box (601), two limiting grooves (602) and two limiting blocks (603). The two limiting grooves (602) are opened on opposite side walls of the wire mesh frame (3). The two limiting blocks (603) are slidably connected in the two limiting grooves (602). The collection box (601) is fixedly installed on the side wall between the two limiting blocks (603).

4. A safety protection device for an injection molding machine according to claim 3, characterized in that: Each of the fixing components (7) includes a T-shaped rod (701), a rotating plate (702), and two magnets (703). The T-shaped rod (701) is fixedly installed on the side end of the protective door panel (1), the rotating plate (702) is rotatably installed on the outer surface of the T-shaped rod (701), and the two magnets (703) are respectively fixedly installed on the side wall between the magnet (703) and the collection box (601).

5. A safety protection device for an injection molding machine according to claim 2, characterized in that: The switch (8) includes an upper mounting plate (801), an electric slide rail (802), and two electric sliders (803). The electric slide rail (802) and the two electric sliders (803) are both located inside the upper mounting plate (801). The two electric sliders (803) are slidably mounted on the outer surface of the electric slide rail (802). The two electric sliders (803) are respectively fixedly mounted on the upper ends of the two protective door panels (1).

6. A safety protection device for an injection molding machine according to claim 1, characterized in that: The support member (9) includes a lower mounting plate (901) and two support movable rods (902). The two support movable rods (902) are respectively fixedly installed at the bottom ends of the two protective door panels (1), and both support movable rods (902) are located inside the lower mounting plate (901).

7. A safety protection device for an injection molding machine according to claim 1, characterized in that: The buffer component (10) includes a receiving groove (101), a buffer plate (102), and a plurality of buffer springs (103). The receiving groove (101) is opened at the side end of the protective door panel (1). The plurality of buffer springs (103) are fixedly installed at the side end of the receiving groove (101), and the buffer plate (102) is fixedly installed at one end of the plurality of buffer springs (103).

Images