Hollow container blow molding device
By setting a mold closing correction device between blow molding molds A and B, the problem of mold position deviation was solved, and accurate mold closing and complete closure of the molding cavity were achieved, thus improving the molding quality of hollow containers.
Patent Information
- Application Number
- CN202421005205.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-09
- Publication Date
- 2025-02-28
- Estimated Expiration
- 2034-05-09
AI Technical Summary
During the frequent opening and closing of the mold in the blow molding machine for hollow containers, the blow mold is prone to positional deviation, which can cause the molding cavity to fail to close completely, resulting in bulging or deformation of the finished product.
A mold closing correction device is installed between blow molds A and B, including a metal correction guide rod, a correction fixing block, and a U-shaped thickened correction sleeve. The mold's automatic position correction is achieved by adjusting the bolts and the anti-dislodgement rod, ensuring accurate mold closing.
It effectively avoids mold position deviation, ensures the complete closure of the blow molding cavity, prevents finished products from bulging or deforming, and improves the success rate of blow molding.
Smart Images
Figure CN222538266U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field related to blow molding molds, and in particular relates to a hollow container blow molding device. Background Art
[0002] Hollow container blow molding device is a kind of equipment used to produce hollow containers by heating plastic granules and blowing them into hollow-shaped containers. Its main part is the blow molding mold. The hollow container blow molding device is usually composed of heating system, extrusion system, mold system, cooling system and control system. In the production process, the plastic granules are first heated and extruded into a tube by the extruder, and then formed into the shape of the hollow container by the mold system, and then cooled and solidified by the cooling system before demolding the finished product.
[0003] However, when the hollow container blow molding device is performing blow molding, it is necessary to place the heated hollow plastic between the open blow molds, and then the heated hollow plastic will be closed in the blow molding cavity after the blow mold is closed, and then the inside of the heated hollow plastic can be blow molded. This will require the blow mold to be opened and closed frequently, which will easily cause position deviation of the blow mold after a long time. In this way, when the blow mold is closed, it is easy to cause the internal blow molding cavity to not be completely closed, and it is easy to cause bulging and deformation of the finished product during blow molding, which will ultimately cause blow molding failure. Utility Model Content
[0004] The purpose of the utility model is to provide a hollow container blow molding device to solve the problem that the blow molding mold proposed in the above background technology needs to be frequently opened and closed, which may easily cause position deviation of the blow molding mold over time. In this way, when the blow molding mold is closed, the internal blow molding cavity may not be completely closed, which may easily cause bulging and deformation of the finished product during blow molding.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a hollow container blow molding device, comprising a blow molding mold A and a blow molding mold B arranged in parallel on the right side of the blow molding mold A, wherein the middle sections of the blow molding mold A and the blow molding mold B are both provided with semicircular blow molding cavities, and the top ends of the two semicircular blow molding cavities are both provided with semicircular blow molding ports, and the two semicircular blow molding cavities are closed to form a circular cylindrical container blow molding cavity, and a mold clamping correction device is provided at the lower front end of the center of the blow molding mold A and the blow molding mold B;
[0006] The mold correction device includes a metal correction guide rod, an embedded screw, a correction fixing block and a U-shaped thickened correction sleeve. The metal correction guide rod is fixed to the front end of the blow mold A by a plurality of embedded screws. The right half of the metal correction guide rod is exposed outside the right end of the blow mold A. The correction fixing block is welded to the front end of the blow mold B. The left and right ends and the top end of the correction fixing block are sleeved with a U-shaped thickened correction sleeve. The U-shaped thickened correction sleeve is located on the lower side of the metal correction guide rod.
[0007] Preferably, the right end of the metal correction guide rod is semicircular, and after the blow mold A and the blow mold B are closed, the bottom of the right end of the metal correction guide rod is attached to the top outer wall of the U-shaped thickened correction sleeve, and the left and right corners of the top of the U-shaped thickened correction sleeve are both curved.
[0008] Preferably, the mold clamping correction device also includes an adjusting screw hole, an anti-slip guide hole, an anti-slip plug rod and an adjusting bolt. An anti-slip guide hole is arranged inside the center of the correction fixing block, and the opening direction of the anti-slip guide hole faces upward. An anti-slip plug rod is arranged at the center of the inner wall of the bottom end of the U-shaped thickened correction sleeve, and the anti-slip plug rod is inserted in the anti-slip guide hole. Adjusting screw holes are arranged inside the left and right sides of the center of the correction fixing block, and adjusting bolts are threadedly inserted in the two adjusting screw holes.
[0009] Preferably, the anti-slipping plug rod can move up and down in the anti-slipping guide hole, the adjusting bolt is inserted into the adjusting screw hole from bottom to top, and the bolt screw length of the adjusting bolt is greater than the height of the correction fixing block.
[0010] Preferably, opening and closing guide rods are provided at the four corners of the right end of the blow mold A, and opening and closing guide holes are provided inside the four corners of the blow mold B. The opening and closing guide rods are inserted into the opening and closing guide holes, and the opening and closing guide rods can move left and right in the opening and closing guide holes.
[0011] Preferably, an external flange is provided at the center of the outer wall of the right end of the blow mold B, and screw holes for hanging ring installation are provided inside the top of the blow mold A and the blow mold B, and the cross-sectional shape and area size of the blow mold A and the blow mold B are the same.
[0012] Compared with the prior art, the utility model provides a hollow container blow molding device having the following
[0013] Beneficial effects:
[0014] The utility model adds a novel mold clamping correction device to the front end outer wall of the blow mold A and the blow mold B of the hollow container blow molding device. The mold clamping correction device can produce a position correction effect when the blow mold A and the blow mold B are clamped without affecting the normal mold opening and clamping of the blow mold A and the blow mold B, thereby avoiding the situation that the blow mold A and the blow mold B are prone to position sinking due to frequent mold opening and clamping. When the blow mold A and the blow mold B are clamped, the mold clamping correction device can automatically push up and lower the blow mold A and the blow mold B, so that the blow mold A and the blow mold B can be accurately clamped together, thereby avoiding the situation that the blow molding failure is caused by uneven distribution of the blowing gas during blow molding. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 The utility model is a three-dimensional structural schematic diagram of a hollow container blow molding device.
[0016] Figure 2 The utility model is a schematic diagram of the planar structure of a hollow container blow molding device.
[0017] Figure 3 It is a schematic diagram of the three-dimensional structure of the mold clamping correction device of the utility model.
[0018] Figure 4 It is a schematic diagram of the planar structure of the mold clamping correction device of the utility model.
[0019] Figure 5 It is a schematic diagram of the internal planar structure of the U-shaped thickened correction sleeve and the correction fixing block of the utility model.
[0020] In the figure: 1. Blow mold A; 2. Mold correction device; 3. Opening and closing guide rod; 4. Blow mold B; 5. Opening and closing guide hole; 6. External flange; 7. Semicircular blow molding port; 8. Semicircular blow molding cavity; 9. Metal correction guide rod; 10. Embedded screw; 11. Correction fixing block; 12. U-shaped thickened correction sleeve; 13. Adjustment screw hole; 14. Anti-drop guide hole; 15. Anti-drop plug rod; 16. Adjustment bolt. DETAILED DESCRIPTION
[0021] 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.
[0022] The utility model provides Figure 1-5The blow molding device for a hollow container shown in the figure comprises a blow molding mold A1 and a blow molding mold B4 arranged in parallel on the right side of the blow molding mold A1. The middle sections of the blow molding mold A1 and the blow molding mold B4 are both provided with semicircular blow molding cavities 8. The top ends of the two semicircular blow molding cavities 8 are both provided with semicircular blow molding ports 7. After the two semicircular blow molding cavities 8 are closed, a circular cylindrical container blow molding cavity is formed. The four corners of the right end of the blow molding mold A1 are each provided with an opening and closing guide rod 3. The four corners of the blow molding mold B4 are provided with a semicircular blow molding port 7. The blow mold A1 and the blow mold B4 are both provided with an opening and closing guide hole 5, the opening and closing guide rod 3 is inserted in the opening and closing guide hole 5, and the opening and closing guide rod 3 can move left and right in the opening and closing guide hole 5, an external flange 6 is provided at the center of the outer wall of the right end of the blow mold B4, and the top of the blow mold A1 and the blow mold B4 are both provided with a hanging ring mounting screw hole. The cross-sectional shape and area size of the blow mold A1 and the blow mold B4 are the same. When using the hollow container blow molding device, the blow mold A1 and the blow mold B4 need to be installed Install it to the corresponding position on the blow molding equipment. When installing the blow molding mold B4, it is necessary to fix the power push-pull device on the blow molding equipment with the external flange 6 on the blow molding mold B4, so that the power push-pull device can normally drive the blow molding mold B4 to move left and right, and then the heated hollow plastic needs to be placed between the blow molding mold A1 and the blow molding mold B4 in the open mold state, and then the blow molding mold B4 is pushed to the left by the power push-pull device, so that the blow molding mold A1 and the blow molding mold B4 are molded together. At this time, the heated hollow plastic will be clamped in the two closed semicircular blow molding cavities 8, and then the heated hollow plastic needs to be blow molded inside through the blow molding port. The heated hollow plastic expands in the blow molding cavity and fits on the inner wall of the blow molding cavity, thereby forming a hollow container shape. After the heated hollow plastic is cooled and formed, the blow molding mold A1 and the blow molding mold B4 are opened, and then the formed hollow container can be taken out.
[0023] like Figure 1 , Figure 3 , Figure 4 and Figure 5As shown, a clamping correction device 2 is provided at the front end of the lower side of the center of the blow mold A1 and the blow mold B4. The clamping correction device 2 includes a metal correction guide rod 9, an embedded screw 10, a correction fixing block 11 and a U-shaped thickened correction sleeve 12. The metal correction guide rod 9 is fixed to the front end of the blow mold A1 by a plurality of embedded screws 10. The right half of the metal correction guide rod 9 is exposed outside the right end of the blow mold A1. The correction fixing block 11 is welded to the front end of the blow mold B4. The left and right ends and the top end of the correction fixing block 11 are sleeved with a U-shaped thickened correction sleeve 12. The U-shaped thickened correction sleeve 12 is located at the lower side of the metal correction guide rod 9. The right end of the metal correction guide rod 9 is semicircular. After the blow mold A1 and the blow mold B4 are closed, the bottom of the right end of the metal correction guide rod 9 fits on the top of the U-shaped thickened correction sleeve 12. On the outer wall of the U-shaped thickened correction sleeve 12, the left and right corners of the top are both treated with arc surfaces. The mold clamping correction device 2 also includes an adjusting screw hole 13, an anti-slip guide hole 14, an anti-slip plug rod 15 and an adjusting bolt 16. An anti-slip guide hole 14 is provided inside the center of the correction fixing block 11, and the opening direction of the anti-slip guide hole 14 faces upward. An anti-slip plug rod 15 is provided at the center of the inner wall of the bottom end of the U-shaped thickened correction sleeve 12, and the anti-slip plug rod 15 is inserted in the anti-slip guide hole 14. Adjusting screw holes 13 are provided inside the left and right sides of the center of the correction fixing block 11, and adjusting bolts 16 are threadedly inserted in the two adjusting screw holes 13. The anti-slip plug rod 15 can move up and down in the anti-slip guide hole 14, and the adjusting bolt 16 is inserted in the adjusting screw hole 13 from bottom to top. The bolt screw length of the adjusting bolt 16 is greater than the height of the correction fixing block 11.
[0024] like Figure 1 , Figure 3 , Figure 4 and Figure 5As shown, when the blow mold A1 and the blow mold B4 are molded together in the most accurate state, the right end of the metal correction guide rod 9 is located at the upper end of the U-shaped thickened correction sleeve 12, and the outer wall of the bottom end of the metal correction guide rod 9 is just in contact with the top outer wall of the U-shaped thickened correction sleeve 12. If the two are not in contact, the position of the U-shaped thickened correction sleeve 12 needs to be corrected to ensure that the bottom end of the metal correction guide rod 9 is in contact with the top of the U-shaped thickened correction sleeve 12. Only in this way can the mold closing correction device 2 always produce a correction effect. When adjusting the U-shaped thickened correction sleeve 12, it is necessary to use a wrench to drive the two adjusting bolts 16 to rotate so that the adjusting bolts 16 move upward in the adjusting screw hole 13, and the adjusting bolts 16 will push the U-shaped thickened correction sleeve 12 upward until the height of the U-shaped thickened correction sleeve 12 is just enough for the metal correction guide rod 9 to fit on its top outer wall. When adjusting the U-shaped thickened correction sleeve 12, the U-shaped thickened correction sleeve 12 The anti-slip plug rod 15 will move in the anti-slip guide hole 14 inside the correction fixed block 11 to prevent the U-shaped thickened correction sleeve 12 from falling off. When the blow mold A1 and the blow mold B4 are frequently opened and closed and the position sinks, the blow mold A1 and the blow mold B4 will have inconsistent mold positions when they are closed. However, during the process of closing the blow mold A1 and the blow mold B4, the right end of the metal correction guide rod 9 will slowly approach the U-shaped thickened correction sleeve 12. When the two are in contact, the metal correction guide rod 9 will be guided to the top outer wall of the U-shaped thickened correction sleeve 12 through the semicircular structure at the right end, ensuring that the outer wall of the bottom end of the right half of the metal correction guide rod 9 is attached to the top outer wall of the U-shaped thickened correction sleeve 12 after closing the mold. In this way, the blow mold A1 and the blow mold B4, which originally had deviations in their positions, can be automatically corrected by the closing correction device 2, so that the blow mold A1 and the blow mold B4 can be accurately closed together.
[0025] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A hollow container blow molding device, comprising a blow molding mold A (1) and a blow molding mold B (4) arranged in parallel on the right side of the blow molding mold A (1), wherein the middle sections of the blow molding mold A (1) and the blow molding mold B (4) are both provided with semicircular blow molding cavities (8), and the top ends of the two semicircular blow molding cavities (8) are both provided with semicircular blow molding ports (7), and the two semicircular blow molding cavities (8) are closed to form a circular cylindrical container blow molding cavity, characterized in that: A mold clamping correction device (2) is provided at the front end of the lower side of the center of the blow mold A (1) and the blow mold B (4); The mold clamping correction device (2) comprises a metal correction guide rod (9), an embedded screw (10), a correction fixing block (11) and a U-shaped thickened correction sleeve (12). The metal correction guide rod (9) is fixed to the front end of the blow mold A (1) by a plurality of embedded screws (10). The right half of the metal correction guide rod (9) is exposed outside the right end of the blow mold A (1). The correction fixing block (11) is welded to the front end of the blow mold B (4). The left and right ends and the top end of the correction fixing block (11) are sleeved with a U-shaped thickened correction sleeve (12). The U-shaped thickened correction sleeve (12) is located on the lower side of the metal correction guide rod (9).
2. A hollow container blow molding device according to claim 1, characterized in that: The right end of the metal correction guide rod (9) is semicircular in shape. After the blow mold A (1) and the blow mold B (4) are closed, the bottom of the right end of the metal correction guide rod (9) fits on the outer wall of the top of the U-shaped thickened correction sleeve (12). The left and right corners of the top of the U-shaped thickened correction sleeve (12) are both curved.
3. A hollow container blow molding device according to claim 2, characterized in that: The clamping correction device (2) further comprises an adjusting screw hole (13), an anti-slip guide hole (14), an anti-slip insert rod (15) and an adjusting bolt (16); an anti-slip guide hole (14) is arranged at the center of the correction fixing block (11); the opening direction of the anti-slip guide hole (14) faces upward; an anti-slip insert rod (15) is arranged at the center of the inner wall at the bottom end of the U-shaped thickened correction sleeve (12); the anti-slip insert rod (15) is inserted into the anti-slip guide hole (14); adjusting screw holes (13) are arranged at the left and right sides of the center of the correction fixing block (11); and adjusting bolts (16) are threadedly inserted into the two adjusting screw holes (13).
4. A hollow container blow molding device according to claim 3, characterized in that: The anti-dropout plug rod (15) can move up and down in the anti-dropout guide hole (14), and the adjusting bolt (16) is inserted into the adjusting screw hole (13) from bottom to top, and the bolt screw length of the adjusting bolt (16) is greater than the height of the correction fixing block (11).
5. A hollow container blow molding device according to claim 1, characterized in that: The blow mold A (1) is provided with opening and closing guide rods (3) at the four corners of the right end, and the blow mold B (4) is provided with opening and closing guide holes (5) at the four corners. The opening and closing guide rods (3) are inserted into the opening and closing guide holes (5), and the opening and closing guide rods (3) can move left and right in the opening and closing guide holes (5).
6. A hollow container blow molding device according to claim 1, characterized in that: An external flange (6) is provided at the center of the outer wall of the right end of the blow mold B (4), and screw holes for hanging ring installation are provided inside the top of the blow mold A (1) and the blow mold B (4). The cross-sectional shape and area size of the blow mold A (1) and the blow mold B (4) are the same.