Sliding door of injection molding machine

Abstract

The utility model relates to the technical field of injection molding machine accessories, and discloses an injection molding machine sliding door which comprises a guide rail fixed on a machine body and a sliding door body sliding on the guide rail in a guiding mode, and the sliding door body comprises a sliding door frame, a transparent piece and a guiding pulley matched with the guide rail in a guiding mode. The sliding door frame is rectangular and is formed by splicing and welding four frame profiles with rectangular sections, the edge of the transparent sheet is fixedly connected with the side, away from the machine body, of the sliding door frame, and an installation block used for installing a guide pulley is fixed to the side, away from the transparent sheet, of the sliding door frame. The processing technology is obviously simplified, the production efficiency is obviously improved, the weight is obviously reduced while the anti-deformation performance is ensured, and the material cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding machine accessories, in particular to a sliding door of an injection molding machine. Background Art

[0002] Injection molding machines are the main molding equipment that uses molding molds to make plastic products of various shapes from thermoplastics or thermosetting plastics. Existing injection molding machines generally have two safety doors, which are generally sliding door structures. Figure 1-Figure 2 As shown, it includes a guide rail fixed on the body and a sliding door body matched with the guide rail. The sliding door body includes a sliding door frame, a transparent sheet 3 fixed on the sliding door frame, and a guide pulley 7 fixed on the sliding door frame and matched with the guide rail.

[0003] The manufacturing process of the existing sliding door frame is as follows: first, a visual window 2 is cut out on an iron plate 1 with a thickness of 1.2MM to 2MM; then a small square is cut off from each of the four corners of the iron plate 1; then the four sides of the iron plate 1 are vertically folded to the same side to form a hem 4, and the width of the hem 4 is the length of the small square; then the adjacent hems 4 are welded together; then a support beam 5 is welded in the middle of the side of the iron plate 1 facing the hem and at the edge of the window; further, a mounting plate 6 covering the four corners of the iron plate is vertically welded on both sides of the side of the iron plate 1 facing the hem 4, and a guide pulley 7 is screwed on the mounting plate 6, and finally, a transparent sheet 3 is fixed to the side of the iron plate 1 close to the hem 4 and covers the visual window 2.

[0004] In the above structure, the iron plate is a sheet structure, which itself has weak deformation resistance. Directly installing the guide pulley and the transparent sheet will cause deformation at the installation location of the guide pulley and the transparent sheet. Therefore, the main functions of the support beam and the mounting plate are to increase the thickness of the iron plate and increase its strength to ensure the stability of the entire sliding door after the transparent sheet and the guide pulley are installed. However, the manufacturing process of the above sliding door is very cumbersome, resulting in low production efficiency of the sliding door. Utility Model Content

[0005] The utility model aims to solve the problem of low production efficiency of sliding doors with sufficient stability in the prior art and provides a sliding door for an injection molding machine with improved production efficiency while ensuring stability.

[0006] In order to solve the above technical problems, the utility model is solved by the following technical solutions:

[0007] The sliding door of an injection molding machine comprises a guide rail fixed on a machine body and a sliding door body guided and slidable on the guide rail. The sliding door body comprises a sliding door frame, a transparent sheet and a guide pulley coordinated with the guide rail. The sliding door frame is rectangular and is welded together by four frame profiles with rectangular cross-sections. The edge of the transparent sheet is fixedly connected to a side of the sliding door frame away from the machine body. A mounting block for mounting the guide pulley is fixed to the side of the sliding door frame away from the transparent sheet.

[0008] By adopting the above scheme, the sliding door frame is directly welded from profiles. The rectangular cross-section of the profile has high strength and good deformation resistance. The transparent sheet is not easy to deform after being directly fixed to the sliding door frame, which not only increases the visual range, but also eliminates the support beam originally used to support the visual window. The mounting block is directly installed on the sliding door frame. Due to the good supporting performance of the sliding door frame, the volume of the mounting block intersecting with the mounting plate can be significantly reduced. After the sliding door frame adopts the profile, the deformation resistance is improved, the stability is improved, the profile can be customized in batches or directly purchased, and simple cutting, welding and punching can be performed directly on the profile afterwards, which significantly simplifies the production process and significantly improves production efficiency. The elimination of the support beam and the reduction in the volume of the mounting block can significantly reduce the weight of the sliding door and improve the smoothness of the sliding door.

[0009] Preferably, a supporting profile with a rectangular cross section is vertically welded in the middle of the sliding door frame, and a side of the supporting profile close to the transparent sheet is fixedly connected to the transparent sheet.

[0010] By adopting the above solution, the setting of the supporting profile not only further improves the stability of the sliding door frame, but also increases the area connected to the transparent sheet, thereby improving the firmness and deformation resistance of the transparent sheet after being fixed to the sliding door frame.

[0011] Preferably, the transparent sheet is fixed to the supporting profile and the frame profile by means of foam adhesive.

[0012] Preferably, a reinforcing support structure for increasing the contact area with the transparent sheet is provided on the frame profile and the support profile.

[0013] Preferably, the reinforced support structure includes a first support edge extending vertically on one side of the frame profile and in contact with the transparent sheet, and a second support edge extending vertically on both sides of the support profile and in contact with the transparent sheet.

[0014] By adopting the above solution, the first supporting edge and the second supporting edge can further increase the contact area between the sliding door frame and the transparent sheet, thereby increasing the anti-deformation performance and stability of the transparent sheet after being fixed to the sliding door frame.

[0015] Preferably, the mounting block and the supporting profile are fixed by at least two groups of fasteners, a plurality of first through holes are provided on the mounting block, and at least one second through hole is provided on the end of the supporting profile on the side away from the transparent sheet, and the fasteners include rivet nuts and rivet screws, a rivet nut is fixed in the second through hole, and the rivet screw is tightly fitted with the rivet nut after passing through the first through hole.

[0016] By adopting the above scheme, after the roughened nut is fixed in the second through hole, the mounting block and the supporting profile are locked by using the rivet screw. This connection method is easy to implement.

[0017] Preferably, a handle is fixed on the outside of the transparent sheet to facilitate its movement.

[0018] The utility model has remarkable technical effects due to the adoption of the above technical scheme: the sliding door frame is directly formed by welding profiles, and the profiles with rectangular cross-sections have high strength and good deformation resistance; the transparent sheet is not easy to deform after being directly fixed to the sliding door frame, which not only increases the visual range, but also eliminates the support beam originally used to support the visual window; the mounting block is directly installed on the sliding door frame, and due to the good supporting performance of the sliding door frame, the volume of the mounting block intersecting with the mounting plate can be significantly reduced; after the sliding door frame adopts the profile, simple cutting, welding and punching are required on the existing profile, which can significantly simplify the production process and improve production efficiency while ensuring the stability of the sliding door structure, and the elimination of the support beam and the reduction of the volume of the mounting block can significantly reduce the weight of the sliding door and improve the smoothness of the sliding door. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is the main view of the existing injection molding machine sliding door;

[0020] Figure 2 It is an axonometric view of the existing sliding door of the injection molding machine;

[0021] Figure 3 This is a front view of the sliding door of the injection molding machine of this embodiment;

[0022] Figure 4 is an axonometric view of the sliding door of the injection molding machine of the present embodiment;

[0023] Figure 5 yes Figure 4 A magnified image of A;

[0024] Figure 6 is a partial exploded view of the sliding door frame of this embodiment;

[0025] Figure 7 yes Figure 6 A magnified view of B;

[0026] Figure 8 yes Figure 6 Enlarged view of C;

[0027] Fig. 9 is an axonometric view of the injection molding machine sliding door of this embodiment assembled on the injection molding machine;

[0028] Fig.10 yes Fig. 9 Magnified view of D.

[0029] The names of the parts indicated by the numerical labels in the above drawings are as follows: 1. Iron plate; 2. Visual window; 3. Transparent sheet; 4. Folding edge; 5. Support beam; 6. Mounting plate; 7. Guide pulley; 71. Upper pulley; 72. Lower pulley; 8. Handle; 9. First travel switch; 10. Mounting block; 1001. First through hole; 11. Frame profile; 12. Support profile; 121. Second notch; 13. First supporting edge; 14. First notch; 15. Second supporting edge; 16. Rivet screw; 17. Rivet nut; 18. Body; 19. Guide rail; 20. Second travel switch; 21. Door opening limit block; 22. Door closing limit block; 23. Fixed template; 24. Moving template; 25. Door frame. DETAILED DESCRIPTION

[0030] The utility model is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0031] Injection molding machine sliding door, refer to Figures 3 to 10 As shown, it includes two guide rails 19 fixed on the fuselage 18 and distributed in parallel up and down, and a sliding door body that cooperates with the guide rails 19 for guiding and sliding. The sliding door body includes a sliding door frame 25, a transparent sheet 3 fixed to the side of the sliding door frame 25 away from the fuselage 18, and a guide pulley 7 arranged on the side of the sliding door frame 25 close to the fuselage 18 and cooperating with the guide rails 19 for guiding.

[0032] Combination Figure 4 , Figure 6 to Figure 8 As shown, the sliding door frame 25 is rectangular and is welded from four frame profiles 11. The cross-section of the frame profile 11 is rectangular. A first supporting edge 13 extends vertically on one side of the frame profile 11. Both ends of the vertically arranged first supporting edge 13 are provided with first notches 14 for splicing the ends of the horizontally arranged first supporting edge 13. A supporting profile 12 is vertically welded to the middle of the sliding door frame 25. The cross-section of the supporting profile 12 is rectangular. Second supporting edges 15 extend vertically on both sides of the supporting profile 12. Both ends of the second supporting edge 15 are recessed with second notches 121 for splicing the side walls of the horizontally arranged first supporting edge 13.

[0033] Combination Figure 3 As shown, the first supporting edge 13 and the second supporting edge 15 are flush with the side of the frame profile 11 away from the fuselage 18, and the transparent sheet 3 is bonded to the frame profile 11, the first supporting edge 13, the supporting profile 12 and the second supporting edge 15 at the same time by foam adhesive. With the above arrangement, the visible range is increased by more than 10% compared with the prior art. The transparent sheet 3 is made of transparent plastic, and the surface is screen-printed using silk-screen technology. Black is screen-printed outside the visible range of the transparent sheet 3. The surface is smooth without scratches, and the periphery is polished and rounded.

[0034] The guide pulley 7 includes an upper pulley 71 located on both sides of the upper end of the sliding door frame 25 and guided to slide with the guide rail 19 above the fuselage 18, and a lower pulley 72 located on both sides of the lower end and guided to slide with the guide rail 19 below the fuselage 18. A mounting block 10 is installed at each of the four corners of the sliding door frame 25, and a guide pulley 7 is installed on each mounting block 10.

[0035] Combination Figure 5 and Figure 7 As shown, the mounting block 10 is fixedly connected to the sliding door frame 25 by fasteners, and the fasteners include rivet screws 16 and rivet nuts 17 that match each other. A plurality of first through holes 1001 are provided on the mounting block 10, some of which are used to install the guide pulley 7 or other parts (such as limit blocks or buffer blocks that cooperate with the travel switch), and some are used to pass the rivet screws 16. At least one second through hole is provided on the side of the frame profile 11 away from the transparent sheet 3, and the rivet nut 17 is fixed in the second through hole. After the rivet screw 16 passes through the first through hole 1001, it is tightly matched with the rivet nut 17, thereby realizing the fixation of the mounting block 10 on the frame profile 11.

[0036] Combination Figure 9-10 As shown, a door frame 25 cooperating with the sliding door body is provided on the fuselage 18, a first travel switch 9 for detecting the closed state of the sliding door body is provided on the fixed template 23 of the fuselage 18, a second travel switch 20 for detecting the open state of the sliding door body is provided on the movable template 24 of the fuselage 18, a door closing limit block 22 cooperating with the first travel switch 9 is provided on the mounting block 10 at the upper end of the sliding door frame 25 close to the closing direction of the sliding door, and a door opening limit block 21 cooperating with the second travel switch 20 is fixed to one end of the lower end of the sliding door frame 25 close to the opening direction of the sliding door.

[0037] The main improvement of the sliding door is that a profile is used as the sliding door frame 25, and the strength and deformation resistance are significantly improved. The transparent sheet 3 and the mounting block 10 are directly installed on the sliding door frame 25. The anti-deformation performance of the sliding door frame 25 itself ensures the stability of the transparent sheet 3 and each part on the mounting block 10 after installation, and eliminates the support beam 5 and the mounting plate 6 and other structures originally provided to increase the deformation resistance. The weight of the entire sliding door is significantly reduced, and the material cost of the sliding door is reduced. The profile can be mass-produced or customized, with fewer processing steps and easy processing, so the production efficiency of the sliding door can be significantly improved.

[0038] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A sliding door for an injection molding machine, comprising a guide rail (19) fixed on a machine body (18) and a sliding door body guided and slidable on the guide rail (19), the sliding door body comprising a sliding door frame (25), a transparent sheet (3) and a guide pulley (7) guided and matched with the guide rail (19), characterized in that: The sliding door frame (25) is rectangular and is welded from four frame profiles (11) with rectangular cross-sections. The edge of the transparent sheet (3) is fixedly connected to a side of the sliding door frame (25) away from the body (18). A mounting block (10) for mounting a guide pulley (7) is fixed to the side of the sliding door frame (25) away from the transparent sheet (3).

2. The sliding door of the injection molding machine according to claim 1, characterized in that: A supporting profile (12) with a rectangular cross section is vertically welded in the middle of the sliding door frame (25), and the side of the supporting profile (12) close to the transparent sheet (3) is fixedly connected to the transparent sheet (3).

3. The sliding door of the injection molding machine according to claim 2, characterized in that: The transparent sheet (3) is bonded and fixed to the supporting profile (12) and the frame profile (11) by means of foam adhesive.

4. The sliding door of the injection molding machine according to claim 3, characterized in that: A reinforcing support structure for increasing the contact area with the transparent sheet (3) is provided on the frame profile (11) and the support profile (12).

5. The sliding door of the injection molding machine according to claim 4, characterized in that: The reinforced support structure comprises a first support edge (13) extending vertically on one side of the frame profile (11) and in contact with the transparent sheet (3), and a second support edge (15) extending vertically on both sides of the support profile (12) and in contact with the transparent sheet (3).

6. The sliding door of the injection molding machine according to claim 1, characterized in that: The mounting block (10) and the supporting profile (12) are fixed by fasteners. A plurality of first through holes (1001) are provided on the mounting block (10). The end of the supporting profile (12) is provided with at least one second through hole on a side away from the transparent sheet (3). The fasteners include a rivet nut (17) and a rivet screw (16). The rivet nut (17) is fixed in the second through hole. The rivet screw (16) passes through the first through hole (1001) and is tightly fitted with the rivet nut (17).

7. The sliding door of the injection molding machine according to claim 1, characterized in that: A handle (8) is fixed on the outside of the transparent sheet (3) for facilitating its movement.

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