Bottom top type demolding assembly

Abstract

The utility model relates to the technical field of building material manufacturing equipment, in particular to a bottom-top type demolding assembly which comprises a lower mold and an upper mold, the upper mold and the lower mold are provided with two side molds which are symmetrically distributed, the distance between the two side molds is adjustable, the left side and the right side of the lower mold are provided with first supporting seats which are symmetrically distributed, and the top ends of the two first supporting seats are jointly provided with a U-shaped plate. A third electric cylinder is arranged on the inner wall of the top end of the U-shaped plate, a second electric cylinder is arranged at the top of the first supporting base, a height-adjustable top die base plate is arranged at the center of the lower die, and a first electric cylinder used for driving the top die block to move vertically is arranged below the top die base plate. According to the utility model, the two side molds are arranged, and the servo motor and the two-way screw rod are matched for use, so that the two moving blocks drive the corresponding side molds to synchronously and reversely move to realize distance adjustment, and the contact area between an injection molding product and the inner wall of the lower mold during demolding is reduced; therefore, the abrasion degree of the injection molding product in the demolding process is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of building material manufacturing equipment, in particular to a bottom-top demoulding component. Background Art

[0002] As a new type of building material, aerated concrete is widely used in building walls, roofs and other parts. During the production process, the mixed aerated concrete slurry needs to be poured into a pre-made mold to fill it and form it into the required shape and size.

[0003] For example, a demolding mechanism for a plastic injection mold with publication number CN216708244U includes an injection lower mold base, a molding cavity is provided in the middle of the top of the injection lower mold base, a demolding cavity is provided inside the injection lower mold base, a top mold channel communicating with the interior of the demolding cavity is provided at the bottom of the inner wall of the molding cavity, a top mold assembly is slidably connected to the interior of the top mold channel, limiting slide grooves are provided on both sides of the inner wall of the demolding cavity, demolding slide rods are slidably connected to the interior of the two limiting slide grooves, and a top mold pad is fixedly arranged between the two demolding slide rods.

[0004] The utility model adopts the method of electromagnet adsorption top mold assembly and top mold spring push to quickly realize the ejection and demolding of molded plastic products. It has fast response speed, high demolding efficiency, simple operation and use, saves time and effort, works stably and reliably, is not prone to jamming, and improves the service life and application range of the demolding mechanism. It is highly practical. However, in the specific use process, it is necessary to drive the top mold assembly to move upward as a whole through the top mold pad to push the injection molded product, which makes the relative movement distance between the side wall of the injection molded product and the inner wall of the mold cavity of the lower mold base too long, thereby increasing the wear area generated during the ejection process of the injection molded product, thereby affecting the quality of the injection molded product. In view of this, we propose a bottom-top demolding assembly. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a bottom-top demoulding component.

[0006] The technical solution of the utility model is:

[0007] A bottom-top demolding assembly comprises a lower mold and an upper mold, wherein the upper mold and the lower mold are provided with two symmetrically distributed side molds with adjustable spacing, the left and right sides of the lower mold are provided with symmetrically distributed first support seats, the top ends of the two first support seats are jointly provided with a U-shaped plate with an opening facing downward, the top inner wall of the U-shaped plate is provided with a third electric cylinder for driving the upper mold to perform vertical displacement, the top of the first support seat is provided with a second electric cylinder, the center of the lower mold is provided with a height-adjustable top mold pad, and the bottom of the top mold pad is provided with a first electric cylinder for driving the top module to perform vertical displacement.

[0008] As a preferred technical solution, the top module is located at the center of the bottom end of the top mold pad, springs are provided at the corners of the bottom of the top mold pad, and a positioning rod is provided at the center of the spring.

[0009] As a preferred technical solution, an embedding groove matching the size of the top mold pad is opened on the inner wall of the bottom end of the lower mold, and a cylindrical groove capable of accommodating a spring is opened inside the lower mold and along the bottom end of the embedding groove.

[0010] As a preferred technical solution, the bottom of the side mold is slidably connected to the lower mold through a connecting block, and the upper mold is movably plugged into the side mold through a prism block.

[0011] As a preferred technical solution, a rectangular plate is embedded in the side wall of the first support seat near the top, and the side mold is slidably connected to the rectangular plate through a moving block.

[0012] As a preferred technical solution, the side wall of the rectangular plate is provided with a moving groove slidably connected to the moving block, a bidirectional screw is rotatably connected in one of the moving grooves, and both ends of the bidirectional screw are threadedly connected to the two corresponding moving blocks respectively.

[0013] As a preferred technical solution, a servo motor is installed on the outer wall of the rectangular plate at a position corresponding to the bidirectional screw, and a guide rod is provided in the other movable groove.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The utility model sets two symmetrically distributed side molds between the upper mold and the lower mold, and then uses the servo motor and the bidirectional screw to make the two moving blocks corresponding to the bidirectional screw move synchronously and in opposite directions along the axial direction of the bidirectional screw to adjust the distance between the two side molds, so as to reduce the contact area between the injection molded product and the inner wall of the lower mold when demolding, thereby reducing the degree of wear of the injection molded product during the demolding process;

[0016] 2. The utility model limits the moving trajectory of the two corresponding moving blocks by adding a guide rod, and then uses a connecting block to slide the side mold and the lower mold to further limit the moving trajectory of the side mold, so as to avoid displacement of the side mold during use and affect the stability of the overall structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is one of the overall structural diagrams of the utility model;

[0018] Figure 2 This is the second schematic diagram of the overall structure of the utility model;

[0019] Figure 3It is a schematic diagram of a part of the structure of a rectangular plate cut away in the utility model;

[0020] Figure 4 It is a schematic diagram of the partial structure of the lower mold after cutting in the utility model;

[0021] Figure 5 It is a schematic diagram of a partial structure of the utility model after partial structure is cut away.

[0022] The meaning of each number in the figure is:

[0023] Lower die; 11, slide; 12, top die pad; 121, spring; 122, positioning rod; 13, top die block; 14, first electric cylinder;

[0024] Upper die; 21, prismatic block;

[0025] Side mold; 31. Moving block; 32. Connecting block;

[0026] First support seat; 41, second electric cylinder;

[0027] U-shaped plate; 51, third electric cylinder;

[0028] Rectangular plate; 61. bidirectional screw; 62. guide rod; 63. servo motor. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] See also Figure 1-Figure 5 , the utility model provides a technical solution:

[0031] A bottom-top demoulding assembly comprises a lower mold 1 and an upper mold 2, wherein the upper mold 2 and the lower mold 1 are provided with two symmetrically distributed side molds 3 with adjustable spacing, and the left and right sides of the lower mold 1 are provided with symmetrically distributed first support seats 4, and the side walls of the first support seats 4 and near the top are embedded with rectangular plates 6, and the side molds 3 are slidably connected with the rectangular plates 6 through moving blocks 31, and the side walls of the rectangular plates 6 are provided with moving grooves slidably connected with the moving blocks 31, and a bidirectional screw 61 is rotatably connected in one of the moving grooves, and the two ends of the bidirectional screw 61 are respectively threadedly connected with the two corresponding moving blocks 31, and a servo motor 63 is installed on the outer wall of the rectangular plate 6 and at the position corresponding to the bidirectional screw 61, and a guide rod 62 is provided in the other moving groove;

[0032] Furthermore, one end of the bidirectional screw 61 passes through the corresponding rectangular plate 6 and is coaxially connected to the output shaft of the servo motor 63. As is well known to those skilled in the art, the servo motor 63 drives the bidirectional screw 61 to rotate after being powered, so that the two corresponding moving blocks 31 move synchronously and in opposite directions along the axial direction of the bidirectional screw 61, and the two moving blocks 31 corresponding to the guide rod 62 are slidably connected to the guide rod 62, so that the moving trajectories of the two corresponding moving blocks 31 are guided and restricted by the guide rod 62.

[0033] The top ends of the two first support seats 4 are jointly provided with a U-shaped plate 5 with an opening facing downwards, and the inner wall of the top end of the U-shaped plate 5 is provided with a third electric cylinder 51 for driving the upper mold 2 to perform vertical displacement, and the piston rod end of the third electric cylinder 51 is fixedly connected to the top end of the upper mold 2. When the piston rod of the third electric cylinder 51 is extended to the extreme, the bottom end of the upper mold 2 and the top of the side mold 3 are located on the same horizontal line;

[0034] A second electric cylinder 41 is provided on the top of the first support seat 4, so that the U-shaped plate 5 can be pushed and pulled by extending the piston rod of the second electric cylinder 41 to adjust the height of the U-shaped plate 5, thereby expanding the adjustment range of the height of the upper mold 2;

[0035] A height-adjustable top die pad 12 is provided at the center of the lower die 1, a top die block 13 is located at the center of the bottom end of the top die pad 12, springs 121 are provided at the corners of the bottom of the top die pad 12, and a positioning rod 122 is provided at the center of the spring 121. An embedding groove matching the size of the top die pad 12 is provided on the inner wall of the bottom end of the lower die 1, and a cylindrical groove capable of accommodating the spring 121 is provided inside the lower die 1 and along the bottom end of the embedding groove;

[0036] Furthermore, the bottom ends of the spring 121 and the positioning rod 122 are fixedly connected to the inner wall of the bottom end of the cylindrical groove, and the top end of the positioning rod 122 contacts the bottom of the top mold pad 12. The deformation trajectory of the spring 121 is limited by the positioning rod to prevent the spring 121 from lateral deviation during the deformation process. The bottom of the side mold 3 is slidably connected to the lower mold 1 through the connecting block 32. The top of the lower mold 1 is provided with a slide groove 11 slidably connected to the connecting block 32, and the end of the slide groove 11 is not connected to the outside, which is used to limit the movement trajectory of the side mold 3 to prevent the side mold 3 from separating from the lower mold 1 and affecting the stability of the overall structure. The upper mold 2 is movably connected to the side mold 3 through the prism block 21.

[0037] A first electric cylinder 14 is provided below the top mold pad 12 for driving the top module 13 to perform vertical displacement. Furthermore, when the piston rod of the first electric cylinder 14 contracts to the extreme, the spring 121 is in a normal supporting state. At this time, the top end of the top mold pad 12 and the bottom inner wall of the lower mold 1 are located on the same horizontal line.

[0038] When the bottom-top demoulding assembly of the utility model is in use, the piston rod of the third electric cylinder 51 is contracted to the extreme, so that the distance between the bottom end of the upper mold 2 and the side mold 3 is adjusted to the maximum, and then the piston rod of the second electric cylinder 41 is extended to push the U-shaped plate 5 upward, so that the distance between the bottom end of the upper mold 2 and the side mold 3 is further increased, and then the servo motor 63 drives the bidirectional screw 61 to rotate, so that the two moving blocks 31 corresponding to the bidirectional screw 61 are synchronously and reversely moved along the axial direction of the bidirectional screw 61;

[0039] At the same time, the other two moving blocks 31 move synchronously and in opposite directions along the axial direction of the guide rod 62. When the moving blocks 31 move, they drive the corresponding side molds 3 to move, so that the distance between the two side molds 3 increases and separates from the outer wall of the injection molded product.

[0040] Then, the piston rod of the first electric cylinder 14 is extended to push the top module 13 upward, so that the top mold pad 12 moves accordingly and generates a pulling force on the spring 121. The spring 121 stretches after being stressed, so that the injection molded product at the center of the lower mold 1 can be pushed to separate from the lower mold 1 and demolding is achieved.

[0041] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A bottom-top demoulding assembly, comprising a lower mold (1) and an upper mold (2), characterized in that: The upper die (2) and the lower die (1) are provided with two symmetrically distributed side dies (3) with adjustable spacing, the left and right sides of the lower die (1) are provided with symmetrically distributed first support seats (4), the top ends of the two first support seats (4) are provided with a U-shaped plate (5) with an opening facing downward, the inner wall of the top end of the U-shaped plate (5) is provided with a third electric cylinder (51) for driving the upper die (2) to perform vertical displacement, the top of the first support seat (4) is provided with a second electric cylinder (41), the center of the lower die (1) is provided with a height-adjustable top die pad (12), and the bottom of the top die pad (12) is provided with a first electric cylinder (14) for driving the top module (13) to perform vertical displacement.

2. The bottom-top demoulding assembly according to claim 1, characterized in that: The top die block (13) is located at the center of the bottom end of the top die pad (12), springs (121) are provided at the corners of the bottom of the top die pad (12), and positioning rods (122) are provided at the centers of the springs (121).

3. The bottom-top demoulding assembly according to claim 2, characterized in that: An embedding groove matching the size of the top mold pad (12) is provided on the inner wall of the bottom end of the lower mold (1), and a cylindrical groove capable of accommodating a spring (121) is provided inside the lower mold (1) and along the bottom end of the embedding groove.

4. The bottom-top demoulding assembly according to claim 1, characterized in that: The bottom of the side mold (3) is slidably connected to the lower mold (1) via a connecting block (32), and the upper mold (2) is movably plugged into the side mold (3) via a prism block (21).

5. The bottom-top demoulding assembly according to claim 1, characterized in that: A rectangular plate (6) is embedded in the side walls of the first support seat (4) and near the top end, and the side mold (3) is slidably connected to the rectangular plate (6) via a moving block (31).

6. The bottom-top demoulding assembly according to claim 5, characterized in that: The side wall of the rectangular plate (6) is provided with a moving groove slidably connected to the moving block (31), wherein a bidirectional screw rod (61) is rotatably connected in one of the moving grooves, and the two ends of the bidirectional screw rod (61) are respectively threadedly connected to the two corresponding moving blocks (31).

7. The bottom-top demoulding assembly according to claim 6, characterized in that: A servo motor (63) is installed on the outer wall of the rectangular plate (6) at a position corresponding to the bidirectional screw rod (61), and a guide rod (62) is provided in the other movable groove.

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