Split maintenance cover plate device for injection molding machine

Abstract

The present application relates to the technical fields of split maintenance cover plate device, especially to a split maintenance cover plate device for injection molding machine, which comprises a support, a cover plate is installed on the support through screws, a disengagement mechanism is arranged between the support and the cover plate, the disengagement mechanism is used to make the cover plate disengage from the installation position on the support and form a visual gap after the screws are removed, the cover plate is disengaged from the installation position on the support through the disengagement mechanism, at the same time, a visual gap is formed between the cover plate and the support, the cover plate can automatically slide down without fasteners, or the cover plate can obviously pop up when the fasteners are loosened, both of which meet the safety requirements of the maintenance cover plate, avoid the cover plate of the mold closing tail and the injection unit of the injection molding machine in the existing intelligent manufacturing equipment industry being only single fixed through bolts, the cover plate and the machine body cannot form an obvious visual gap after the bolts are loosened, which does not meet the safety regulations of the injection molding machine, and the dangerous operation of the cover plate being started without being fastened is easy to be forgotten.

Description

Technical Field

[0001] This invention relates to the field of split-type inspection cover plate devices, and in particular to a split-type inspection cover plate device for injection molding machines. Background Technology

[0002] Injection molding machines are widely used in the intelligent manufacturing equipment industry, encompassing a complete range of technologies from single-machine intelligence to unmanned production lines, and from data acquisition to intelligent decision-making. During injection molding machine maintenance, the mold closing tail section uses a split upper / lower cover plate structure (U-shaped). According to safety regulations, the maintenance cover plate, as a detachable fixed protective device, must be removed from its original installation position after all fasteners are removed. It must not remain in place relying on any residual connections or jamming, as this poses a safety hazard. However, existing injection units' L-shaped cover plates are only single-fixed with bolts. After loosening the bolts, no clear visual gap is formed between the cover plate and the machine body, failing to meet the explicit requirements of safety standards. This leads to potential operational risks. For example, if the maintenance cover plate remains in its installation position, its loose state may be overlooked, leading to dangerous operation of starting the machine with the cover plate not securely fastened, causing personal injury accidents. Summary of the Invention

[0003] The technical problem to be solved by this invention is: In the existing intelligent manufacturing equipment industry, the cover plate of the mold closing tail and injection unit of the injection molding machine is only fixed by bolts. After the bolts are loosened, there is no obvious visible gap between the cover plate and the machine body. This makes it easy to forget the operation and cause dangerous operation of starting the machine without tightening the cover plate, resulting in personal safety accidents and failing to meet the explicit requirements of the safety standards. Therefore, a split maintenance cover plate device for injection molding machines is provided.

[0004] The technical solution adopted by this invention to solve its technical problem is: a split maintenance cover plate device for injection molding machines, including a bracket, on which a cover plate is mounted by screws. A release mechanism is provided between the bracket and the cover plate. The release mechanism is used to release the cover plate from its mounting position on the bracket after the screws are removed, creating a visible gap. Compared with the prior art, this solution uses a release mechanism to release the cover plate from its mounting position on the bracket, while simultaneously creating a visible gap between the two. This allows the cover plate to automatically slide down when there are no fasteners, or to clearly spring up when the fasteners are loosened, both of which meet the safety requirements of the maintenance cover plate.

[0005] To achieve the disengagement mechanism, in some preferred embodiments, the disengagement mechanism includes an upper cover and a lower cover. The upper cover is disposed above the lower cover and spliced ​​together to form a cover plate. The contact surface at the joint between the upper and lower covers is an inclined surface, which gradually slopes downwards from the inside of the bracket. With the upper and lower covers positioned vertically and spliced ​​together, the inclined surface at the joint allows the upper cover to automatically slide down and disengage from the mounting surface when not secured.

[0006] To prevent jamming between the upper and lower covers, which would prevent the upper cover from sliding down, in some preferred embodiments, the contact edges of the upper and lower covers at the inclined surfaces are both chamfered.

[0007] To ensure stable and reliable sliding of the top cover, in some preferred embodiments, a coating that reduces the coefficient of friction is applied to the contact surface of the beveled joint. This is achieved by spraying a coating that reduces the surface friction coefficient at the beveled joint.

[0008] To achieve a coating with a low coefficient of friction, in some preferred embodiments, the coating is a polytetrafluoroethylene (PTFE) coating.

[0009] In some preferred embodiments, the inclination angle A of the inclined plane is 8°-20°.

[0010] To achieve the detachment mechanism, in some preferred embodiments, the detachment mechanism includes a tongue-shaped plate with elastic deformation capability. One end of the tongue-shaped plate abuts against the bracket, and the other end of the tongue-shaped plate is mounted on the cover plate. The tongue-shaped plate is used to lift the disassembled cover plate by means of the elastic deformation of bending, so as to separate the cover plate from the mounting surface of the bracket.

[0011] In order to achieve the installation of the tongue-shaped plate, in some preferred embodiments, the tongue-shaped plate includes a mounting part and a bending part connected in sequence. The mounting part is mounted on the cover plate, and the bending part is bent and deformed in the direction of the mounting part and abuts against the bracket.

[0012] In some preferred embodiments, the mounting portion and the bending portion are connected by an arc transition.

[0013] In some preferred embodiments, the portion of the bent part that contacts the cover plate is provided with a rounded chamfer or a pad.

[0014] The beneficial effects of this invention are as follows: When in use, the split maintenance cover plate device for injection molding machines of this invention uses a release mechanism to detach the cover plate from the mounting position of the bracket. Simultaneously, a visible gap is formed between the two, allowing it to automatically slide down when no fasteners are present, or to clearly spring up when the fasteners are loosened. Both meet the safety requirements of maintenance cover plates. This avoids the problem in existing intelligent manufacturing equipment industries where the cover plates of the injection molding machine's mold closing tail and injection unit are only fixed with bolts. After loosening the bolts, a clear visible gap cannot be formed between the cover plate and the machine body, making it easy to forget to tighten the cover plate, leading to dangerous operations such as starting the machine without securing it, causing personal injury accidents, and failing to meet the explicit requirements of safety standards. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Figure 1 This is a three-dimensional structural schematic diagram of Embodiment 1 of the present invention; Figure 2 This is the front view of Embodiment 1 in this invention; Figure 3 This is a side view of Embodiment 1 in this invention; Figure 4 This is a state diagram of the disassembly process in Embodiment 1 of the present invention; Figure 5 This is a schematic diagram of the three-dimensional structure in Embodiment 2 of the present invention. Figure 1 ; Figure 6 This is a schematic diagram of the three-dimensional structure in Embodiment 2 of the present invention. Figure 2 ; Figure 7 yes Figure 6 A magnified view of part A in the image; Figure 8 This is the front view of Embodiment 2 in this invention; Figure 9 yes Figure 6 BB section view; Figure 10 yes Figure 9 A magnified view of part C; Figure 11 This is a diagram showing the visible gap between the cover plate and the bracket at the installation position during disassembly in Embodiment 2 of the present invention; Figure 12 yes Figure 10 Enlarged view of D; Figure 13 This is a schematic diagram of the structure of the cover plate and the tongue plate in Embodiment 2 of the present invention; Figure 14 This is a three-dimensional structural diagram of the tongue-shaped plate in Embodiment 2 of the present invention.

[0017] In the figure: 1. Bracket, 2. Cover plate, 201. Upper cover, 202. Lower cover, 203. Inclined surface, 3. Tongue-shaped plate, 301. Mounting portion, 302. Bending portion; Wherein the inclination angle A is the included angle between the inclined surface and the horizontal plane. Detailed Description of the Preferred Embodiments

[0018] Embodiment 1, as shown in Figure 1-4 the figure, a split type access cover device for an injection molding machine comprises a bracket 1, a cover plate 2 is mounted on the bracket 1 through screws, a separation mechanism is arranged between the bracket 1 and the cover plate 2, and the separation mechanism is used for making the cover plate 2 separate from the mounting position on the bracket 1 and form a visible gap after the screws are removed.

[0019] The separation mechanism comprises an upper cover 201 and a lower cover 202, the upper cover 201 is arranged above the lower cover 202 and spliced with each other to form the cover plate 2, the contact surface at the splicing seam between the upper cover 201 and the lower cover 202 is an inclined surface 203, the inclined surface 203 is arranged to gradually incline downward from the inside to the outside of the bracket 1, the inclination angle A of the inclined surface 203 is 8°-20°, wherein both the upper cover 201 and the lower cover 202 are thin-plate outer covers formed by cold stamping or bending, the cover plate 2 is in a "several" shape in top view, two vertical rows of transverse kidney holes are respectively formed on the folded edges on both sides of the upper cover 201 and the lower cover 202, and are fixed on the bracket 1 through bolts, and an easy-to-release handle is arranged on the outer surface of the upper cover 201.

[0020] The contact edges of the upper cover 201 and the lower cover 202 at the inclined surface 203 are both provided with chamfers, and the chamfers ensure that the sliding direction of the upper cover 201 is clear and avoid jamming.

[0021] A coating for reducing the friction coefficient is arranged on the contact surface of the inclined surface 203 at the splicing seam, the coating is a polytetrafluoroethylene coating, which reduces the friction force between the upper cover 201 and the lower cover 202 at the inclined surface 203, and ensures that the upper cover 201 slides down stably and reliably after being disassembled.

[0022] Its working principle is as follows: during normal use, the upper cover 201 is fixed by bolts, and the appearance of the upper cover 201 and the lower cover 202 are spliced and flush with each other, ensuring the overall aesthetics of the cover plate 2.

[0023] When it is necessary to disassemble the bolts of the upper cover 201 for maintenance, the upper cover 201 is no longer restricted by the fasteners after removal, and slides down along the inclined surface 203 by its own gravity, and separates from the fixed position from the tail or the side, so that it cannot stay in place, which meets the safety requirements.

[0024] Embodiment 2 is another embodiment of the separation mechanism, specifically as shown in Figure 5-14As shown, the detachment mechanism includes a tongue-shaped plate 3 with elastic deformation capability. One end of the tongue-shaped plate 3 abuts against the bracket 1, and the other end of the tongue-shaped plate 3 is installed on the cover plate 2. The tongue-shaped plate 3 is used to lift the disassembled cover plate 2 by means of elastic deformation of bending, so as to separate the cover plate 2 from the mounting surface of the bracket 1. The cover plate 2 is an L-shaped sheet metal part with a handle on the upper inclined surface and a vertical fixing bolt near the edge.

[0025] The tongue-shaped plate 3 includes a mounting part 301 and a bending part 302 connected in sequence. The mounting part 301 is mounted on the cover plate 2, and the bending part 302 is bent and deformed towards the mounting part 301 and abuts against the bracket 1. The mounting part 301 and the bending part 302 are connected by an arc transition. The part of the bending part 302 that abuts against the cover plate 2 is provided with an arc chamfer or a pad. The cover plate 2 is formed into a tongue-shaped elastic structure by bending sheet material on both sides: the first bend is obliquely downward, the first bend is a long lever arm, and the first bend inclination angle is 8°-20°; the second bend is bent upward at a small angle to form an arc contact surface. After the whole assembly, the lower surface of the tongue-shaped structure protrudes 5-20mm when the cover plate 2 is placed horizontally.

[0026] Its working principle is as follows: when the bolts are tightened, the cover plate 2 fits against the lower protective cover and remains in position.

[0027] When the bolts are removed, the release of the elastic stress in the tongue-shaped cover causes the lower right side of the L-shaped cover 2 to lift up, forming a clear gap with the lower protective cover, which is a visible gap. This clearly indicates that the cover 2 is in an unsecured or unprotected state, meeting the safety regulations' requirement that detachable protective devices must not remain in their original position when there are no fasteners.

[0028] Based on the above-described preferred embodiments of the present invention, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A split inspection cover plate device for an injection molding machine, comprising a bracket (1), wherein a cover plate (2) is mounted on the bracket (1) by screws, characterized in that: A disengagement mechanism is provided between the bracket (1) and the cover plate (2). The disengagement mechanism is used to disengage the cover plate (2) from the mounting position on the bracket (1) and form a visible gap after the screws are removed.

2. The split inspection cover device for an injection molding machine according to claim 1, characterized in that: The detachment mechanism includes an upper cover (201) and a lower cover (202). The upper cover (201) is positioned above the lower cover (202) and is spliced ​​together to form a cover plate (2). The contact surface at the splice seam between the upper cover (201) and the lower cover (202) is an inclined surface (203). The inclined surface (203) is gradually inclined downward from the inside to the outside of the bracket (1).

3. A split inspection cover device for an injection molding machine according to claim 2, characterized in that: The contact edges of the upper cover (201) and the lower cover (202) at the inclined surface (203) are both chamfered.

4. A split inspection cover device for an injection molding machine according to claim 2 or 3, characterized in that: The contact surface of the bevel (203) at the splice seam is provided with a coating to reduce the coefficient of friction.

5. A split inspection cover device for an injection molding machine according to claim 4, characterized in that: The coating is a polytetrafluoroethylene coating.

6. A split inspection cover device for an injection molding machine according to claim 2, characterized in that: The inclination angle A of the inclined plane (203) is 8°-20°.

7. A split inspection cover device for an injection molding machine according to claim 1, characterized in that: The detachment mechanism includes a tongue-shaped plate (3) with elastic deformation capability. One end of the tongue-shaped plate (3) abuts against the bracket (1), and the other end of the tongue-shaped plate (3) is installed on the cover plate (2). The tongue-shaped plate (3) is used to lift the disassembled cover plate (2) by means of the elastic deformation of bending, so as to separate the cover plate (2) from the mounting surface of the bracket (1).

8. A split inspection cover device for an injection molding machine according to claim 7, characterized in that: The tongue-shaped plate (3) includes a mounting part (301) and a bending part (302) connected in sequence. The mounting part (301) is mounted on the cover plate (2), and the bending part (302) is bent and deformed in the direction of the mounting part (301) and abuts against the bracket (1).

9. A split inspection cover device for an injection molding machine according to claim 8, characterized in that: The mounting part (301) and the bending part (302) are connected by an arc transition.

10. A split inspection cover device for an injection molding machine according to claim 8 or 9, characterized in that: The bent portion (302) that contacts the cover plate (2) is provided with a rounded chamfer or a pad.

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