Blow Molded Pallet Internal Reinforcement Structure Mold
By combining support frames and cooling mechanisms, the problem of insufficient mold operation stability was solved, achieving high strength and durability of the pallet, meeting the load-bearing capacity requirements, and improving production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 江苏拓泰塑料科技有限公司
- Filing Date
- 2025-06-13
- Publication Date
- 2026-05-26
AI Technical Summary
The existing molds for internal reinforcement structures of blow-molded pallets have insufficient operational stability and lack reinforcement structures, resulting in poor load-bearing capacity and durability of the products, making it difficult to meet usage requirements.
The system employs a combination of support frame, reinforcement mechanism, cooling mechanism, molding assembly, and blow molding assembly to ensure stable mold operation. The strength of the tray is enhanced by reinforcing grooves, foot grooves, and flared surfaces. Combined with cooling box and circulation assembly, it achieves rapid cooling and molding, improving the stability and cooling efficiency of the mold.
To ensure stable equipment operation, increase the strength and durability of the pallet during forming, enhance load-bearing capacity, meet usage requirements, and reduce refrigeration costs and improve production efficiency through rapid cooling.
Smart Images

Figure CN224276157U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mold processing technology, and in particular to a mold for reinforcing the internal structure of a blow-molded pallet. Background Technology
[0002] Blow-molded pallets are widely used in the logistics and warehousing industries. To improve their load-bearing capacity and durability, internal reinforcement structures are indispensable. This relies on high-precision molds for the internal reinforcement structure of blow-molded pallets. These molds, through special structures, endow the pallet with specific reinforcing ribs and grid structures during the blow molding process, enhancing the pallet's strength and enabling it to withstand greater weight and external impacts. This meets the needs of different usage scenarios and promotes the expansion of blow-molded pallets in heavy-duty transportation and other fields.
[0003] During use, the complex internal structure of the mold and the uneven flow of the plastic melt during filling can easily lead to inconsistent wall thickness of the reinforcing structure, affecting the overall strength uniformity of the tray. Frequent mold opening and closing and high-pressure injection result in severe wear on key parts of the mold, shortening its service life and increasing production costs. Existing equipment uses optimized mold runner structure, sets guide channels and adjusts gate position to improve melt flow uniformity, selects high-performance mold steel materials, and performs surface hardening treatment on easily worn parts to improve mold wear resistance. However, the above structure does not take into account the stability of mold operation, and the lack of a reinforcing structure inside the mold after tray molding results in poor load-bearing capacity and durability of the molded tray, making it difficult to meet usage requirements. Utility Model Content
[0004] To overcome the above deficiencies, this utility model provides a mold for the internal reinforcement structure of a blow-molded pallet, which aims to improve the problem of insufficient structural stability and lack of reinforcement structure in the prior art, resulting in insufficient load-bearing capacity and durability of the product.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a blow molding tray internal reinforcing structure mold, including a support frame, a reinforcing mechanism provided at the top of the support frame, a molding assembly provided at the top of the inner wall of the support frame, a blow molding assembly provided at the top of the molding assembly, and a cooling mechanism provided on the top right side of the support frame, the cooling mechanism being used to provide coolant to cool the mold;
[0006] The reinforcing mechanism includes a fixed mold, the bottom of which is fixedly connected to the top of the support frame. The bottom of the inner wall of the fixed mold is provided with multiple reinforcing grooves, and the bottom of the inner wall of the fixed mold is provided with multiple foot grooves on the front and rear sides. The inner wall of the fixed mold is provided with multiple flared surfaces.
[0007] As a further description of the above technical solution:
[0008] The cooling mechanism includes a cooling box, with multiple cooling rods fixedly connected to the bottom of the inner wall of the cooling box. A mold cavity is opened on the right side of the fixed mold. A circulation component is provided in the middle of the inner wall of the cooling box, and a heat preservation component is provided on the top of the fixed mold.
[0009] As a further description of the above technical solution:
[0010] The molding assembly includes a telescopic rod, the top of which is fixedly connected to the inner top of the support frame, and a moving mold is fixedly connected to the bottom of the telescopic rod. Stabilizing rods are fixedly connected to the top left and right sides of the moving mold.
[0011] As a further description of the above technical solution:
[0012] The blow molding assembly includes an air pump, the bottom of which is fixedly connected to the top front side of the moving mold. An air guide pipe is fixedly connected to the outer wall of the air pump, and multiple blow needles are fixedly connected to the bottom of the air guide pipe.
[0013] As a further description of the above technical solution:
[0014] The circulation assembly includes a circulation pump, the bottom of which is located at the top of the cooling rod. A liquid guide pipe is fixedly connected to the left end of the circulation pump, and multiple sealing rings are fixedly connected to the left and right sides of the outer wall of the liquid guide pipe.
[0015] As a further description of the above technical solution:
[0016] The insulation component includes an insulation layer, the outer wall of which is fixedly connected to the inner wall of the cooling box, and an insulation cover is installed on the top of the insulation layer.
[0017] As a further description of the above technical solution:
[0018] The outer walls of the plurality of stabilizer bars are slidably connected to the top of the support frame.
[0019] As a further description of the above technical solution:
[0020] The top of the stabilizer bar is fixedly connected to an anti-detachment plate, and the multiple anti-detachment plates are arranged symmetrically among each other.
[0021] This utility model has the following beneficial effects:
[0022] 1. In this utility model, when the telescopic rod is activated, the moving mold slides and closes the mold with the assistance of the stabilizing rod. After the raw material is fed in, the air pump blows air through the air guide pipe, so that the raw material adheres to the inner wall of the mold to form a hollow structure. The reinforcing groove and foot groove on the fixed mold strengthen the product shaping, and the flared surface increases the strength and area, making it easy to demold. This structure ensures the stable operation of the equipment, increases the strength of the pallet during forming, improves the load-bearing capacity and durability, and meets the usage requirements.
[0023] 2. In this utility model, cooling rods are installed in the cooling box to cool the liquid, and the temperature is maintained by the insulation layer and the insulation cover. After the mold is formed, the circulation pump is started to send the coolant into the mold cavity through the sealed liquid guide pipe to achieve rapid cooling and forming. The liquid is then pumped back to continue cooling. The structure is formed quickly, the insulation reduces the refrigeration cost, improves efficiency, and meets the cooling requirements. Attached Figure Description
[0024] Figure 1 This is a perspective view of the front side of the support frame of the blow-molded tray internal reinforcement structure mold proposed in this utility model.
[0025] Figure 2 This is a partial structural breakdown diagram of the moving mold of the blow molding tray internal reinforcement structure mold proposed in this utility model;
[0026] Figure 3 This is a partial structural diagram of the fixed mold of the blow-molded tray internal reinforcement structure mold proposed in this utility model;
[0027] Figure 4 This is a partial structural diagram of the mold cavity of the blow molding tray internal reinforcement structure mold proposed in this utility model;
[0028] Figure 5 This is a partial structural diagram of the cooling box of the blow molding tray internal reinforcement structure mold proposed in this utility model.
[0029] Legend:
[0030] 1. Support frame; 2. Reinforcing mechanism; 201. Fixed mold; 202. Reinforcing groove; 203. Foot groove; 204. Flared surface; 205. Compression molding assembly; 2051. Telescopic rod; 2052. Moving mold; 2053. Stabilizing rod; 206. Blow molding assembly; 2061. Air pump; 2062. Air guide pipe; 2063. Blow needle; 3. Cooling mechanism; 301. Cooling box; 302. Cooling rod; 303. Mold cavity; 304. Circulation assembly; 3041. Circulation pump; 3042. Liquid guide pipe; 3043. Sealing ring; 305. Insulation assembly; 3051. Insulation layer; 3052. Insulation cover; 4. Anti-detachment sheet. Detailed Implementation
[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0032] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 3 An embodiment of this utility model provides: a blow molding tray internal reinforcement structure mold, including a support frame 1, a reinforcement mechanism 2 provided on the top of the support frame 1, a molding assembly 205 provided on the top of the inner wall of the support frame 1, a blow molding assembly 206 provided on the top of the molding assembly 205, and a cooling mechanism 3 provided on the top right side of the support frame 1, the cooling mechanism 3 being used to provide coolant to cool the mold;
[0033] The reinforcing mechanism 2 includes a fixed mold 201, the bottom of which is fixedly connected to the top of the support frame 1. Multiple reinforcing grooves 202 are provided on the bottom of the inner wall of the fixed mold 201. Multiple foot grooves 203 are provided on the front and rear sides of the bottom of the inner wall of the fixed mold 201. Multiple flared surfaces 204 are provided on the inner wall of the fixed mold 201.
[0034] Specifically, the support frame 1 is equipped with a reinforcing mechanism 2 to enhance the stability and load-bearing capacity of the pallet. The molding assembly 205 is located inside the support frame 1 and can press and seal the mold to achieve the desired molding effect. The blow molding assembly 206 is responsible for injecting gas into the material to form a hollow product. The cooling mechanism 3 provides coolant and effectively cools the mold through circulation, thereby ensuring the continuity of the production process and the quality of the product. The fixed mold 201 is connected to the top of the support frame 1 to ensure the stability of the entire structure. The reinforcing groove 202 ensures the molding effect of the finished product. The foot groove 203 provides additional support points for pallet molding and further enhances the stability of the structure. These flared surfaces 204 help to expand the support surface of pallet molding and ensure the quality of the molded product.
[0035] Please see the appendix Figure 1 Appendix Figure 4 and attached Figure 5 The cooling mechanism 3 includes a cooling box 301. Multiple cooling rods 302 are fixedly connected to the bottom of the inner wall of the cooling box 301. A mold cavity 303 is opened on the right side of the fixed mold 201. A circulation component 304 is provided in the middle of the inner wall of the cooling box 301. A heat preservation component 305 is provided on the top of the fixed mold 201.
[0036] Specifically, the cooling tank 301 is used to store coolant. The cooling rod 302 inside the tank cools the coolant, ensuring that heat can be effectively conducted away from the fixed mold 201 during the cooling process, thereby achieving a rapid cooling effect. The mold cavity 303 works in conjunction with the cooling tank 301, providing cooling space for the mold and further improving cooling efficiency. The circulation component 304 is responsible for circulating the cooling medium within the mold cavity 303 to ensure uniform temperature distribution of the cooling medium, thereby achieving a more uniform and efficient cooling effect. The heat preservation component 305 effectively prevents heat loss, ensuring that the temperature during the cooling process is controlled within the ideal range, saving costs.
[0037] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 3 The compression molding assembly 205 includes a telescopic rod 2051, the top of which is fixedly connected to the top of the support frame 1. The bottom of the telescopic rod 2051 is fixedly connected to a moving mold 2052. Stabilizing rods 2053 are fixedly connected to the top left and right sides of the moving mold 2052. The blow molding assembly 206 includes an air pump 2061, the bottom of which is fixedly connected to the front top of the moving mold 2052. An air guide pipe 2062 is fixedly connected to the outer wall of the air pump 2061. Multiple blow needles 2063 are fixedly connected to the bottom of the air guide pipe 2062. The circulation assembly 304 includes a circulation pump 3041, the bottom of which is located on the top of the cooling rod 302. A liquid guide pipe 3042 is fixedly connected to the left end of the circulation pump 3041. Multiple sealing rings 3043 are fixedly connected to the left and right sides of the outer wall of the liquid guide pipe 3042.
[0038] Specifically, the telescopic rod 2051 is tightly integrated with the support frame 1, ensuring the stability and reliability of the moving mold 2052. The function of these stabilizing rods 2053 is to further enhance the stability of the moving mold 2052 during operation and prevent displacement caused by external forces. The blow molding assembly 206 is composed of an air pump 2061, which ensures stability and precise control during the blow molding process. The air guide pipe 2062 blows gas out from the blow needle 2063, thereby uniformly delivering compressed air to the part that needs to be blown. The circulating pump 3041 can effectively control the circulation of coolant to achieve the best cooling effect. The liquid guide pipe 3042, in conjunction with the sealing ring 3043, ensures that the coolant inside the liquid guide pipe 3042 will not leak, thereby ensuring the sealing performance and cooling efficiency of the entire structure.
[0039] Please see the appendix Figure 1 and attached Figure 5The insulation component 305 includes an insulation layer 3051, the outer wall of which is fixedly connected to the inner wall of the cooling box 301, an insulation cover 3052 is installed on the top of the insulation layer 3051, the outer walls of multiple stabilizing rods 2053 are slidably connected to the top of the support frame 1, and anti-detachment plates 4 are fixedly connected to the top of the stabilizing rods 2053, with the multiple anti-detachment plates 4 arranged symmetrically among them.
[0040] Specifically, the insulation component 305 is composed of an insulation layer 3051, which is connected to the inner wall of the cooling box 301 to ensure the insulation effect. The insulation cover 3052 on top of the insulation layer 3051 improves the sealing performance and further enhances the insulation performance. In order to provide additional stability and support, the stabilizer 2053 is slidably connected to the support frame 1, so that the stabilizer 2053 can ensure the stability of the moving mold 2052. These anti-detachment plates 4 are symmetrically arranged to ensure that the components will not fall off accidentally during use, thereby improving the overall safety and reliability.
[0041] Working principle: When the telescopic rod 2051 is activated, the moving mold 2052 at its bottom end slides downward with the assistance of the stabilizing rod 2053, thereby closing the mold. After the raw material is fed into the mold, the air pump 2061 is activated, which blows gas out from the blow needle 2063 through the air guide pipe 2062, so that the raw material can adhere to the inner wall of the mold and form a hollow structure. Since the fixed mold 201 fixed on the support frame 1 has a reinforcing groove 202 and a foot groove 203, the product shaping will form a reinforced structure. The flared surface 204 ensures strength while increasing the area, and is also more conducive to demolding. This structure can ensure the stability of the equipment operation and can increase the extra strength during pallet forming, improve the load-bearing capacity and durability of the pallet, and meet the usage requirements.
[0042] Cooling rods 302 are installed inside the cooling box 301 to cool the liquid inside. Since the cooling box 301 is equipped with an insulation layer 3051 and covered with an insulation cover 3052, the cooled liquid is kept warm. After the mold is formed, the circulation pump 3041 is started to send the coolant into the mold cavity 303 through the liquid guide pipe 3042 equipped with a sealing ring 3043, so that the mold can be quickly cooled and formed. Then the liquid is pumped back for cooling again. This structure can quickly cool and form the mold, and the insulation reduces the refrigeration cost, improves the working efficiency, and meets the cooling requirements.
[0043] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A mold for reinforcing the internal structure of a blow-molded pallet, including a support frame (1), characterized in that: The support frame (1) is provided with a reinforcing mechanism (2) at the top, a molding assembly (205) is provided on the top of the inner wall of the support frame (1), a blow molding assembly (206) is provided on the top of the molding assembly (205), and a cooling mechanism (3) is provided on the right side of the top of the support frame (1). The cooling mechanism (3) is used to provide coolant to cool the mold. The reinforcing mechanism (2) includes a fixed mold (201), the bottom of which is fixedly connected to the top of the support frame (1). The bottom of the inner wall of the fixed mold (201) is provided with multiple reinforcing grooves (202), the bottom of the inner wall of the fixed mold (201) is provided with multiple foot grooves (203) on the front and rear sides, and the inner wall of the fixed mold (201) is provided with multiple flared surfaces (204).
2. The mold for the internal reinforcing structure of the blow-molded pallet according to claim 1, characterized in that: The cooling mechanism (3) includes a cooling box (301), and multiple cooling rods (302) are fixedly connected to the bottom of the inner wall of the cooling box (301). A mold cavity (303) is opened on the right side of the fixed mold (201). A circulation component (304) is provided in the middle of the inner wall of the cooling box (301), and a heat preservation component (305) is provided on the top of the fixed mold (201).
3. The mold for the internal reinforcing structure of the blow-molded pallet according to claim 1, characterized in that: The molding assembly (205) includes a telescopic rod (2051), the top of which is fixedly connected to the top of the support frame (1), and a moving mold (2052) is fixedly connected to the bottom of the telescopic rod (2051). Stabilizing rods (2053) are fixedly connected to the top left and right sides of the moving mold (2052).
4. The mold for the internal reinforcing structure of the blow-molded pallet according to claim 1, characterized in that: The blow molding assembly (206) includes an air pump (2061), the bottom of which is fixedly connected to the top front side of the moving mold (2052), and an air guide pipe (2062) is fixedly connected to the outer wall of the air pump (2061). The bottom of the air guide pipe (2062) is fixedly connected to a plurality of blow needles (2063).
5. The mold for the internal reinforcing structure of the blow-molded pallet according to claim 2, characterized in that: The circulation assembly (304) includes a circulation pump (3041), the bottom of which is located at the top of the cooling rod (302). The left end of the circulation pump (3041) is fixedly connected to a liquid guide pipe (3042), and multiple sealing rings (3043) are fixedly connected to the left and right sides of the outer wall of the liquid guide pipe (3042).
6. The mold for the internal reinforcing structure of the blow-molded pallet according to claim 2, characterized in that: The insulation component (305) includes an insulation layer (3051), the outer wall of which is fixedly connected to the inner wall of the cooling box (301), and an insulation cover (3052) is installed on the top of the insulation layer (3051).
7. The mold for the internal reinforcing structure of the blow-molded pallet according to claim 3, characterized in that: The outer walls of the plurality of stabilizer bars (2053) are slidably connected to the top of the support frame (1).
8. The mold for the internal reinforcing structure of the blow-molded pallet according to claim 3, characterized in that: The top of the stabilizer bar (2053) is fixedly connected to an anti-detachment piece (4), and the multiple anti-detachment pieces (4) are arranged symmetrically among each other.