Bio-based spoon mold

By introducing the collaborative operation of the mold closing drive component and the spraying component into the bio-based spoon mold, the problem of spoon deformation caused by high mold temperature was solved, achieving rapid cooling and efficient injection molding, thereby improving the molding qualification rate and production efficiency of the spoon.

CN223545652UActive Publication Date: 2025-11-14BAOHE IND (CHONGQING) CO LTD
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Patent Information

Application Number
CN202422517032.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-17
Publication Date
2025-11-14
Estimated Expiration
2034-10-17

AI Technical Summary

Technical Problem

Existing bio-based spoon molds lack effective cooling structures, resulting in high mold temperatures after injection molding, easy deformation of the spoons, low yield, and long injection molding cycles.

Method used

The mold clamping drive component and the spraying component work together. The spraying component sprays water onto the mold to cool it down. Combined with temperature detection sensors and controllers, the mold can be cooled down quickly.

Benefits of technology

It improved the injection molding pass rate of bio-based spoons, shortened the injection molding cycle, and enhanced the practicality of the mold.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of spoon molds, in particular to a bio-based spoon mold which comprises a machine frame, a controller installed on the machine frame, modules arranged above the machine frame at equal intervals, a mold closing driving assembly used for driving the adjacent modules to be close to or away from each other, and a spraying assembly arranged over the modules. The front faces of every two adjacent modules are provided with a front face protrusion and a back face concave part respectively, and when the mold closing driving assembly drives the adjacent modules to be closed, the front face protrusions and the back face concave parts define a mold cavity. According to the device, the mold can be assisted to be cooled after injection molding, the situation that the temperature of the mold is high and the spoon deforms when the mold is opened is avoided, the percent of pass of injection molding of the bio-based spoon is increased, the injection molding period is shortened, and the practicability is better.
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Description

Technical Field

[0001] This utility model relates to the field of spoon mold technology, specifically a bio-based spoon mold. Background Technology

[0002] Bio-based materials refer to materials manufactured using renewable biomass such as grains, legumes, straw, and bamboo powder through biological, chemical, and physical methods. These biomaterials possess good biodegradability and resource sustainability; however, compared to tableware made from traditional petroleum-based materials, they have poorer heat resistance. Therefore, when using bio-based materials for injection molding spoons, the mold cooling requirements are high. However, existing spoon molds lack corresponding mold cooling structures, requiring a long waiting time before mold opening after injection molding. If the mold temperature is too high, the spoon is prone to deformation, resulting in a low yield rate, long injection molding cycle, and poor practicality for existing bio-based spoon injection molding. Utility Model Content

[0003] The purpose of this invention is to address the above-mentioned shortcomings by providing a bio-based spoon mold that can assist in cooling the mold after injection molding, thus preventing the spoon from deforming due to high mold temperature during mold opening. This improves the pass rate of bio-based spoon injection molding, shortens the injection molding cycle, and enhances practicality.

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

[0005] A bio-based spoon mold includes a frame, a controller mounted on the frame, modules equidistantly arranged above the frame for driving adjacent modules to move closer or further apart using a mold-closing drive assembly, a spray assembly positioned directly above the modules, and a water tank positioned directly below the modules. A front protrusion and a back concave side are respectively provided on the facing surfaces of two adjacent modules. When the mold-closing drive assembly drives the adjacent modules to close, the front protrusion and the back concave side enclose and form a mold cavity. Both the mold-closing drive assembly and the spray assembly are electrically connected to the controller.

[0006] Furthermore, the front side of the module is provided with a channel one that connects to the front protrusion, and the front side of the module is provided with a channel two that connects to the reverse concave side. After two adjacent modules are molded together, channel one and channel two surround each other to form an injection port.

[0007] Furthermore, the mold clamping drive assembly includes a back plate fixed to the frame, two fixed plates symmetrically arranged on the back plate, a slide rod, a drive shaft, and multiple slide blocks arranged between the two fixed plates, the two ends of the slide rod being fixed to the two fixed plates respectively, the drive shaft being rotatably connected between the two fixed plates via bearings, the slide blocks being slidably connected to the slide rod, and a mold clamping drive mechanism being fixed to the back of the slide block. The mold clamping drive mechanism is used to drive the drive shaft to rotate. Multiple guide slots are arranged on the drive shaft, with the axis of the drive shaft as the reference point, extending to the left and right respectively. A slider is slidably connected in the guide slot, one end of the slider extending out of the guide slot and connecting to the slide block, and the module being fixed on the slide block.

[0008] Furthermore, a driven wheel is provided at one end of the drive shaft; the mold closing drive mechanism includes a stepper motor fixed on the fixed plate, and a drive wheel is driven and connected to the output shaft of the stepper motor, and the drive wheel and the driven wheel are connected by a belt.

[0009] Furthermore, the spray assembly includes a main spray pipe fixed on the frame, multiple spray branch pipes disposed on the main spray pipe, multiple atomizing nozzles installed on the spray branch pipes, a water inlet pipe with one end extending into the water tank, a cold water pipe connected to the main spray pipe with the other end, a water chiller with the inlet end connected to the water inlet pipe and the outlet end connected to the cold water pipe, and a water pump disposed at the end of the water inlet pipe extending into the water tank.

[0010] Furthermore, a filter screen is horizontally arranged on the frame, and the filter screen is positioned above the water tank.

[0011] Furthermore, it also includes a temperature detection sensor embedded in the mold cavity, the temperature detection sensor being used to detect the temperature on the inner wall of the mold cavity, and the temperature detection sensor being electrically connected to the controller.

[0012] The beneficial effects of this utility model are:

[0013] In practical applications, during use, the mold closing drive component drives adjacent modules to close, so that the front protrusion and the back concave side enclose to form a mold cavity. Liquid bio-based material is injected into the mold cavity. After injection, water is sprayed onto the modules through the spray component to quickly cool the modules. The water after heat exchange falls into a water tank. When the module temperature reaches the standard, the mold closing drive component drives the adjacent modules to separate, and the molded bio-based spoon can be removed. This utility model can assist in cooling the mold after injection molding, avoiding the situation where the spoon deforms due to the high mold temperature when the mold is opened. It improves the pass rate of bio-based spoon injection molding, shortens the injection molding cycle, and has better practicality. Attached Figure Description

[0014] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a top view of the present invention;

[0016] Figure 3 This is a schematic diagram of the module and the mold closing drive assembly in this utility model;

[0017] Reference numerals: Frame 1; Controller 2; Module 3; Reverse recess 31; Channel 2 32; Mold closing drive assembly 4; Back plate 41; Fixing plate 42; Slide rod 43; Drive shaft 44; Guide slot 441; Driven wheel 442; Slide block 45; Stepper motor 461; Drive wheel 462; Belt 463; Spray assembly 5; Main spray pipe 51; Spray branch pipe 52; Atomizing nozzle 53; Water inlet pipe 54; Cold water pipe 55; Water chiller 56; Water pump 57; Water tank 6; Filter screen 7. Detailed Implementation

[0018] like Figure 1 , Figure 2 and Figure 3 As shown, a bio-based spoon mold includes a frame 1, a controller 2 mounted on the frame 1, modules 3 equidistantly arranged above the frame 1, a mold-closing drive assembly 4 for driving adjacent modules 3 to move closer or further apart, a spray assembly 5 positioned directly above the modules 3, and a water tank 6 positioned directly below the modules 3. A front protrusion and a back concave surface 31 are respectively provided on the opposite surfaces of two adjacent modules 3. When the mold-closing drive assembly 4 drives adjacent modules 3 to close, the front protrusion and the back concave surface 31 enclose and form a mold cavity. Both the mold-closing drive assembly 4 and the spray assembly 5 are electrically connected to the controller 2.

[0019] In use, the mold closing drive assembly 4 drives the adjacent modules 3 to close, so that the front protrusion and the back concave 31 surround and form a mold cavity. Liquid bio-based material is injected into the mold cavity. After injection, water is sprayed onto the modules 3 through the spray assembly 5 to cool the modules 3 quickly. The water after cooling and heat exchange falls into the water tank 6. When the temperature of the modules 3 reaches the standard, the mold closing drive assembly 4 drives the adjacent modules 3 to separate, and the molded bio-based spoon can be taken out. This utility model can assist the mold to cool down after injection molding, avoid the situation that the spoon will deform due to the high temperature of the mold when the mold is opened, improve the pass rate of bio-based spoon injection molding, shorten the injection molding cycle, and has better practicality.

[0020] like Figure 1 , Figure 2 and Figure 3As shown, the front side of module 3 is provided with channel one that connects to the front protrusion, and the front side of module 3 is provided with channel two 32 that connects to the reverse concave 31. After two adjacent modules 3 are molded together, channel one and channel two 32 surround each other to form an injection port. In this embodiment, liquid bio-based material can be injected into the mold cavity through the injection port.

[0021] like Figure 1 , Figure 2 and Figure 3 As shown, the mold clamping drive assembly 4 includes a back plate 41 fixed to the frame 1, and two fixed plates 42 symmetrically arranged on the back plate 41. A slide rod 43, a drive shaft 44, and multiple slide blocks 45 are disposed between the two fixed plates 42. The two ends of the slide rod 43 are respectively fixed to the two fixed plates 42. The drive shaft 44 is rotatably connected between the two fixed plates 42 via bearings. The slide blocks 45 are slidably connected to the slide rod 43. A mold clamping drive mechanism is fixed to the back of one slide block 45, and the mold clamping drive mechanism is used to drive the drive shaft. The drive shaft 44 rotates, and multiple guide slots 441 are provided on the drive shaft 44 with the axis of the drive shaft 44 as the reference point, respectively to the left and right. A slider is slidably connected in the guide slot 441. One end of the slider extends out of the guide slot 441 and is connected to the slide block 45. The module 3 is fixed on the slide block 45. In this embodiment, during the process of the mold closing drive mechanism driving the drive shaft 44 to rotate, the drive shaft 44 rotates and drives the slider to slide along the guide slot 441. At the same time, the slide block 45 slides along the slide rod 43, so that multiple slide blocks 45 drive adjacent modules 3 to move closer or further away from each other.

[0022] like Figure 1 , Figure 2 and Figure 3 As shown, a driven wheel 442 is provided at one end of the drive shaft 44; the mold closing drive mechanism includes a stepper motor 461 fixed on the fixed plate 42, and a drive wheel 462 is driven and connected to the output shaft of the stepper motor 461. The drive wheel 462 and the driven wheel 442 are connected by a belt 463. In this embodiment, the stepper motor 461 drives the drive wheel 462 to rotate, and the drive wheel 462 drives the driven wheel 442 and the drive shaft 44 to rotate through the belt 463.

[0023] like Figure 1 , Figure 2 and Figure 3As shown, the spray assembly 5 includes a main spray pipe 51 fixed on the frame 1, multiple spray branch pipes 52 disposed on the main spray pipe 51, multiple atomizing nozzles 53 installed on the spray branch pipes 52, a water inlet pipe 54 with one end extending into the water tank 6, and a cold water pipe 55 connected to the main spray pipe 51 at the other end, a water chiller 56 with the water inlet end connected to the water inlet pipe 54 and the water outlet end connected to the cold water pipe 55, and a water pump 57 disposed at the end of the water inlet pipe 54 extending into the water tank 6; in this embodiment, water mist is sprayed onto the module 3 through the water pump 57, the water inlet pipe 54, the water chiller 56, the cold water pipe 55, the main spray pipe 51, the spray branch pipes 52 and the atomizing nozzles 53, so that the module 3 is cooled quickly, thereby shortening the cooling and molding cycle of the bio-based spoon.

[0024] like Figure 1 , Figure 2 and Figure 3 As shown, a filter screen 7 is horizontally arranged on the frame 1, and the filter screen 7 is located above the water tank 6; in this embodiment, the filter screen 7 can prevent the bio-based spoon after demolding from falling into the water tank 6.

[0025] like Figure 1 , Figure 2 and Figure 3 As shown, it also includes a temperature detection sensor embedded in the mold cavity. The temperature detection sensor is used to detect the temperature on the inner wall of the mold cavity and is electrically connected to the controller 2. In this embodiment, the temperature on the inner wall of the mold cavity can be detected by the temperature detection sensor.

[0026] The specific embodiments described herein are merely illustrative examples 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 scope defined by this utility model.

Claims

1. A bio-based spoon mold, characterized in that: The system includes a frame (1), a controller (2) mounted on the frame (1), modules (3) equidistantly arranged above the frame (1), a mold closing drive assembly (4) used to drive adjacent modules (3) to move closer or further away from each other, a spray assembly (5) arranged directly above the module (3), and a water tank (6) arranged directly below the module (3). On the front and back surfaces of two adjacent modules (3), there are respectively a front protrusion and a back concave (31). When the mold closing drive assembly (4) drives the adjacent modules (3) to close, the front protrusion and the back concave (31) surround and form a mold cavity. The mold closing drive assembly (4) and the spray assembly (5) are both electrically connected to the controller (2).

2. The bio-based spoon mold according to claim 1, characterized in that, The front side of the module (3) is provided with a channel one that connects to the front protrusion, and the front side of the module (3) is provided with a channel two (32) that connects to the reverse concave (31). After the two adjacent modules (3) are molded together, the channel one and the channel two (32) surround each other to form an injection port.

3. The bio-based spoon mold according to claim 1, characterized in that, The mold clamping drive assembly (4) includes a back plate (41) fixed on the frame (1), two fixing plates (42) symmetrically arranged on the back plate (41), a slide rod (43), a drive shaft (44) and a plurality of slide blocks (45) arranged between the two fixing plates (42). The two ends of the slide rod (43) are respectively fixed on the two fixing plates (42). The drive shaft (44) is rotatably connected between the two fixing plates (42) through bearings. The slide blocks (45) are slidably connected to the frame (1). On the slide rod (43), a mold closing drive mechanism is fixed on the back of the slide block (45). The mold closing drive mechanism is used to drive the drive shaft (44) to rotate. On the drive shaft (44), multiple guide slots (441) are provided to the left and right respectively with the axis of the drive shaft (44) as the reference point. A slider is slidably connected in the guide slot (441). One end of the slider extends out of the guide slot (441) and is connected to the slide block (45). The module (3) is fixed on the slide block (45).

4. The bio-based spoon mold according to claim 3, characterized in that, One end of the drive shaft (44) is provided with a driven wheel (442); the mold closing drive mechanism includes a stepper motor (461) fixed on the fixed plate (42), and a drive wheel (462) is driven and connected on the output shaft of the stepper motor (461). The drive wheel (462) and the driven wheel (442) are connected by a belt (463).

5. A bio-based spoon mold according to claim 1, characterized in that, The spray assembly (5) includes a main spray pipe (51) fixed on the frame (1), multiple spray branch pipes (52) set on the main spray pipe (51), multiple atomizing nozzles (53) installed on the spray branch pipes (52), a water inlet pipe (54) with one end extending into the water tank (6), a cold water pipe (55) connected to the main spray pipe (51) with the other end, a water chiller (56) with the water inlet end connected to the water inlet pipe (54) and the water outlet end connected to the cold water pipe (55), and a water pump (57) is provided at the end of the water inlet pipe (54) extending into the water tank (6).

6. A bio-based spoon mold according to claim 1, characterized in that, A filter screen (7) is horizontally arranged on the frame (1), and the filter screen (7) is arranged above the water tank (6).

7. A bio-based spoon mold according to claim 1, characterized in that, It also includes a temperature detection sensor embedded in the mold cavity, the temperature detection sensor being used to detect the temperature on the inner wall of the mold cavity, and the temperature detection sensor being electrically connected to the controller (2).