Large overwater engineering buoy blow molding mold

By designing a blow molding mold for large-scale floating pontoons, and utilizing a combination of templates and support blocks to achieve automatic demolding, the problem of product parts being difficult to remove from the mold after blow molding was solved, reducing production costs and material waste.

CN223644251UActive Publication Date: 2025-12-09ZHEJIANG HI SEA PLASTIC CO LTD
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Patent Information

Application Number
CN202520033333.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-07
Publication Date
2025-12-09
Estimated Expiration
2035-01-07

AI Technical Summary

Technical Problem

Existing large-scale water engineering pontoons are difficult to automatically demold after blow molding, which can easily lead to product breakage or deformation, and increase raw material waste and production costs.

Method used

A blow molding mold for large-scale floating pontoons in water conservancy projects was designed. By setting a first template and a second template in the mold, a complete cavity is formed by combining the sealing part and the blow nozzle. Combined with the telescopic mechanism of the support block, the mold can be separated at the same time when the mold is opened, avoiding the need for manual assistance in removing the product.

Benefits of technology

It enables automatic demolding of product parts, avoiding damage and deformation, and reducing production costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of molds, and particularly relates to a blow molding mold for a large overwater engineering buoy. The mold comprises a first mold base, a first mold plate is arranged on one side of the first mold base, a first cavity part arranged in the first mold base is communicated with a first cavity wall part and a first lug cavity part which are arranged in the first mold plate, and a second mold plate is arranged on one side of a second mold base. A second cavity part arranged in the second mold base is communicated with a second cavity wall part and a second lug cavity part which are arranged in the second mold plate, a first blocking part arranged on the inner side of the first mold plate is in press fit with a second blocking part arranged on the inner side of the second mold plate, and a first supporting block and a second supporting block are arranged on the side face of the first mold plate and the side face of the second mold plate correspondingly; according to the utility model, a product is directly separated from the whole mold by utilizing a mode of combining the forming cavities in two directions and simultaneously separating the forming cavities during mold opening, so that the personnel assistance is avoided, the damage and deformation of the product are prevented, and the production cost is reduced.
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Description

Technical Field

[0001] This utility model belongs to the field of mold technology and relates to a blow molding mold for large-scale water engineering pontoons. Background Technology

[0002] Blow molding is a manufacturing process for forming hollow plastic parts. The blow molding process begins by melting plastic and forming a preform, or in the case of injection and injection stretch blow molding (ISB) preforms. The preform is then clamped into a mold, air is blown in, and finally, the air pressure pushes the plastic out to fit the mold. Currently, the molds for blow molding large-scale floating pontoons are unidirectional, which can cause the part to become stuck in one direction, requiring manual removal. This can easily lead to breakage or deformation of the part, resulting in secondary processing, wasted raw materials, and increased costs. Therefore, this paper proposes a blow molding mold for large-scale floating pontoons to address these problems. Utility Model Content

[0003] The purpose of this invention is to address the above-mentioned problems by providing a blow molding mold for large-scale floating pontoons in water engineering.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A blow molding mold for large-scale floating pontoons for water engineering includes a first mold base, a first template on one side of the first mold base, and a second template on one side of the first template. A second mold base is provided on the other side of the second template. A first blow nozzle is provided in the upper center of the inner side of the first template, and a second blow nozzle is provided in the upper center of the inner side of the second template. The second blow nozzle is pressed against the first blow nozzle. First support blocks are provided on both sides of the first template, and second support blocks are provided on both sides of the second template.

[0006] In the aforementioned blow molding mold for large-scale floating pontoons, a first groove is provided on the inner side of the first mold base, and a first cavity is provided inside the first mold base. The first groove is placed around the top of the first cavity. A first protrusion is fixedly connected to one side of the first template, and the first protrusion is inserted into the first groove. The first template is also fixedly connected to the first mold base.

[0007] In the aforementioned blow molding mold for large-scale water engineering pontoons, a first cavity wall is provided inside the first template, and the inner wall of the first cavity wall is flush with the inner wall of the first cavity. A first sealing part is fixedly connected to the other side of the first template, and a first ear cavity is provided at each of the four corners of the first sealing part.

[0008] In the above-mentioned blow molding mold for large-scale water engineering pontoons, a second sealing part is fixedly connected to one side of the second template, and a second ear cavity is provided in each of the four corners of the second sealing part. The second sealing part presses against the first sealing part, and a complete ear cavity is formed between the second ear cavity and the first ear cavity.

[0009] In the aforementioned blow molding mold for large-scale water engineering pontoons, a first blow nozzle is fixedly connected to the upper center of the first template, and a second blow nozzle is fixedly connected to the upper center of the inner side of the second template. The second blow nozzle and the first blow nozzle are pressed together to form a complete blow molding opening, and the complete blow molding opening connects the first sealing part and the second sealing part.

[0010] In the above-mentioned blow molding mold for large-scale water engineering pontoons, a second protrusion is fixedly connected to the other side of the second template, and a second cavity wall is provided inside the second template. A second groove is provided inside one side of the second mold base, and the second protrusion is inserted into the second groove.

[0011] In the aforementioned blow molding mold for large-scale floating pontoons, the second mold base is fixedly connected to the second template, and a second cavity is provided inside the second mold base, while the inner wall of the second cavity is flush with the inner wall of the second cavity wall.

[0012] In the aforementioned blow molding mold for large-scale waterborne engineering pontoons, the first cavity portion, the first cavity wall portion, the first ear cavity portion, the second ear cavity portion, the second cavity wall portion, and the second cavity portion form a complete cavity.

[0013] In the aforementioned blow molding mold for large-scale floating pontoons, the first template has a first support block fixedly connected to both sides, and the second template has a second support block fixedly connected to both sides.

[0014] In the aforementioned blow molding mold for large-scale water engineering pontoons, the first support block corresponds to the second support block, and both the first and second support blocks are equipped with telescopic mechanisms at their outer ends.

[0015] Compared with existing technologies, the advantages of this utility model are:

[0016] This utility model features a first template on one side of a first mold base, with a first cavity within the first mold base communicating with a first cavity wall and a first ear cavity within the first template. A second template on one side of a second mold base, with a second cavity within the second mold base communicating with a second cavity wall and a second ear cavity within the second template. A first sealing part on the inner side of the first template and a second sealing part on the inner side of the second template are pressed together. A first support block and a second support block are respectively provided on the sides of the first and second templates. By combining the two sides to form a cavity and separating them simultaneously during mold opening, the product part can be directly removed from the entire mold, avoiding manual assistance, preventing product damage and deformation, and reducing production costs.

[0017] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description

[0018] Figure 1 This is an overall schematic diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the overall explosion from the left side of this utility model;

[0020] Figure 3 This is a right-side exploded view of the entire utility model;

[0021] Figure 4 This is a top view of the first template of this utility model;

[0022] Figure 5 This is a top view of the second template of this utility model.

[0023] In the figure: 1. First mold base; 101. First groove; 102. First cavity; 2. First template; 201. First protrusion; 202. First cavity wall; 203. First sealing part; 204. First ear cavity; 3. Second template; 301. Second sealing part; 302. Second cavity wall; 303. Second protrusion; 304. Second ear cavity; 4. Second mold base; 401. Second groove; 402. Second cavity; 5. First blowhole; 6. Second blowhole; 7. First support block; 8. Second support block. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings.

[0025] like Figure 1-5As shown, a blow molding mold for a large-scale floating pontoon includes a first mold base 1, a first template 2 on one side of the first mold base 1, and a second template 3 on the other side of the first template 2. At the same time, a second mold base 4 is provided on the other side of the second template 3. A first blow nozzle 5 is provided in the upper middle part of the inner side of the first template 2, and a second blow nozzle 6 is provided in the upper middle part of the inner side of the second template 3. The second blow nozzle 6 is pressed with the first blow nozzle 5. First support blocks 7 are provided on both sides of the first template 2, and second support blocks 8 are provided on both sides of the second template 3.

[0026] A first groove 101 is provided on the inner side of the first mold base 1, and a first cavity 102 is provided inside the first mold base 1. The first groove 101 is placed around the top of the first cavity 102. A first protrusion 201 is fixedly connected to one side of the first template 2, and the first protrusion 201 is inserted into the first groove 101. At the same time, the first template 2 is fixedly connected to the first mold base 1.

[0027] Furthermore, a first cavity wall portion 202 is provided inside the first template 2, and the inner wall of the first cavity wall portion 202 is flush with the inner wall of the first cavity portion 102. A first sealing portion 203 is fixedly connected to the other side of the first template 2, and a first ear cavity portion 204 is provided at each of the four corners of the first sealing portion 203.

[0028] The first mold base 1 is integrally formed with the first template 2 on one side, and the first cavity part 102 is provided in the first mold base 1 and the first cavity wall part 202 provided in the first template 2 are combined to form half of the cavity of the product part. When the mold is opened, the first mold base 1 and the first template 2 can be pulled apart together.

[0029] Furthermore, the second template 3 is fixedly connected to the second sealing part 301 on one side, and the second sealing part 301 is provided with a second ear cavity part 304 at each of its four corners. The second sealing part 301 presses against the first sealing part 203, and a complete ear cavity is formed between the second ear cavity part 304 and the first ear cavity part 204.

[0030] After the first ear cavity portion 204 provided in the first template 2 and the second ear cavity portion 304 provided in the second template 3 are combined, the cavity is blow-molded into an ear around the float.

[0031] Furthermore, the first blow nozzle 5 is fixedly connected to the upper center of the first template 2, and the second blow nozzle 6 is fixedly connected to the upper center of the inner side of the second template 3. The second blow nozzle 6 and the first blow nozzle 5 are pressed together to form a complete blow molding opening, and the complete blow molding opening is connected between the first sealing part 203 and the second sealing part 301.

[0032] After the first template 2 and the second template 3 are pressed together, the first sealing part 203 and the second sealing part 301 are used to seal the entire mold, and the first blow nozzle 5 and the second blow nozzle 6 are then combined into a complete blow nozzle, so that the complete blow nozzle can perform blow molding work on the entire interior of the mold.

[0033] Furthermore, the second template 3 is fixedly connected to the second protrusion 303 on the other side, and the second template 3 has a second cavity wall 302. The second mold base 4 has a second groove 401 on one side, and the second protrusion 303 is inserted into the second groove 401.

[0034] Furthermore, the second mold base 4 is fixedly connected to the second template 3, and a second cavity 402 is provided inside the second mold base 4, while the inner wall of the second cavity 402 is flush with the inner wall of the second cavity wall 302.

[0035] After the second template 3 and the second mold base 4 are connected as one unit, the second cavity wall portion 302 provided in the second template 3 and the second cavity portion 402 provided in the second mold base 4 cooperate to form the other half of the product part cavity. When the mold is opened, the second template 3 and the second mold base 4 separate at the same time to obtain the other half of the product part.

[0036] Furthermore, the first cavity portion 102, the first cavity wall portion 202, the first ear cavity portion 204, the second ear cavity portion 304, the second cavity wall portion 302 and the second cavity portion 402 form a complete cavity.

[0037] After the first cavity portion 102, the first cavity wall portion 202 and the first ear cavity portion 204 form one half of the cavity, and the second ear cavity portion 304, the second cavity wall portion 302 and the second cavity portion 402 form the other half of the cavity, the complete cavity assembly inside the mold is completed.

[0038] Furthermore, the first support block 7 is fixedly connected to both sides of the first template 2, and the second support block 8 is fixedly connected to both sides of the second template 3.

[0039] Furthermore, the first support block 7 corresponds to the second support block 8, and both the first support block 7 and the second support block 8 are provided with telescopic mechanisms at their outer ends.

[0040] First support block 7 and second support block 8 are respectively provided on both sides of the first template 2 and the second template 3. After using the external connecting telescopic structure of the first support block 7 and the second support block 8, the first template 2 and its side structure can be separated from the second template 3 and its side structure to both sides.

[0041] Working principle:

[0042] A first template 2 is integrally connected to one side of the first mold base 1, and the first cavity portion 102 provided in the first mold base 1, together with the first cavity wall portion 202 and the first ear cavity portion 204 provided in the first template 2, form half of the entire mold cavity. A second template 3 is provided on one side of the second mold base 4, and the second cavity portion 402 provided in the second mold base 4, together with the second cavity wall portion 302 and the second ear cavity portion 304 provided in the second template 3, form the other half of the entire mold cavity. When the first template 2 and the second template 3 are pressed together, the first sealing portion 203 provided on the inner side of the first template 2 and the first sealing portion 203 provided on the inner side of the second template 3 are... The second sealing part 301 is pressed together, thus forming the entire internal cavity. The first sealing part 203 and the second sealing part 301 seal each other. At the same time, the first blow nozzle 5 and the second blow nozzle 6 are respectively provided on the top of the first template 2 and the second template 3 and are combined. The entire internal cavity of the mold is blow molded at the point of combination. The first support block 7 and the second support block 8 are respectively provided on the side of the first template 2 and the second template 3. When the mold is opened, the first support block 7 and the second support block 8 are driven to separate at the same time, so that the structure on the side of the first template 2 and the structure on the side of the second template 3 are separated from the product part, avoiding the product part from getting stuck.

[0043] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of this utility model.

[0044] Although this document frequently uses terms such as 1. first mold base; 101. first groove; 102. first cavity; 2. first template; 201. first protrusion; 202. first cavity wall; 203. first sealing part; 204. first ear cavity; 3. second template; 301. second sealing part; 302. second cavity wall; 303. second protrusion; 304. second ear cavity; 4. second mold base; 401. second groove; 402. second cavity; 5. first blowhole; 6. second blowhole; 7. first support block; 8. second support block, etc., the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A blow molding mold for large-scale floating pontoons, comprising a first mold base (1), characterized in that: The first mold base (1) has a first template (2) on one side, and the second template (3) is pressed on the other side of the first template (2). At the same time, the second mold base (4) is provided on the other side of the second template (3). The first template (2) has a first blow nozzle (5) in the upper middle part of the inner side, and the second template (3) has a second blow nozzle (6) in the upper middle part of the inner side. The second blow nozzle (6) is pressed with the first blow nozzle (5). The first template (2) has a first support block (7) on both sides, and the second template (3) has a second support block (8) on both sides.

2. The blow molding mold for large-scale waterborne engineering pontoons according to claim 1, characterized in that: The first mold base (1) has a first groove (101) on its inner side and a first cavity (102) inside the first mold base (1). The first groove (101) is placed around the top of the first cavity (102). The first template (2) is fixedly connected to a first protrusion (201) on one side and the first protrusion (201) is inserted into the first groove (101). The first template (2) is fixedly connected to the first mold base (1).

3. The blow molding mold for large-scale waterborne engineering pontoons according to claim 2, characterized in that: The first template (2) has a first cavity wall (202) inside, and the inner wall of the first cavity wall (202) is flush with the inner wall of the first cavity (102). The first sealing part (203) is fixedly connected to the other side of the first template (2), and the first ear cavity (204) is opened at each of the four corners of the first sealing part (203).

4. The blow molding mold for large-scale waterborne engineering pontoons according to claim 3, characterized in that: The second template (3) is fixedly connected to the second sealing part (301) on one side, and the second sealing part (301) has a second ear cavity part (304) at each of its four corners. The second sealing part (301) presses against the first sealing part (203), and the second ear cavity part (304) and the first ear cavity part (204) form a complete ear cavity.

5. The blow molding mold for large-scale waterborne engineering pontoons according to claim 4, characterized in that: The first template (2) is fixedly connected to the upper middle part of the first blow nozzle (5), and the second template (3) is fixedly connected to the upper middle part of the inner side of the second blow nozzle (6). The second blow nozzle (6) and the first blow nozzle (5) are pressed together to form a complete blow molding opening. At the same time, the complete blow molding opening is connected between the first sealing part (203) and the second sealing part (301).

6. The blow molding mold for large-scale waterborne engineering pontoons according to claim 5, characterized in that: The second template (3) is fixedly connected to the second protrusion (303) on the other side, and the second template (3) has a second cavity wall (302) inside, and the second mold base (4) has a second groove (401) inside one side, and the second protrusion (303) is inserted into the second groove (401).

7. The blow molding mold for large-scale waterborne engineering pontoons according to claim 6, characterized in that: The second mold base (4) is fixedly connected to the second template (3), and a second cavity (402) is provided inside the second mold base (4), while the inner wall of the second cavity (402) is flush with the inner wall of the second cavity wall (302).

8. The blow molding mold for large-scale waterborne engineering pontoons according to claim 7, characterized in that: The first cavity portion (102), the first cavity wall portion (202), the first ear cavity portion (204), the second ear cavity portion (304), the second cavity wall portion (302), and the second cavity portion (402) form a complete cavity.

9. The blow molding mold for large-scale waterborne engineering pontoons according to claim 8, characterized in that: The first template (2) is fixedly connected to the first support block (7) on both sides, and the second template (3) is fixedly connected to the second support block (8) on both sides.

10. The blow molding mold for large-scale waterborne engineering pontoons according to claim 9, characterized in that: The first support block (7) corresponds to the second support block (8), and both the first support block (7) and the second support block (8) are provided with telescopic mechanisms at their outer ends.