Foam compression molding device

Abstract

The utility model discloses a foam compression molding device, which belongs to the technical field of foam production equipment and comprises a fixed frame and a movable frame. The fixed rack comprises a fixed rack bottom plate, a fixed rack bearing plate and a fixed rack stand column arranged between the fixed rack bottom plate and the fixed rack bearing plate. The movable rack comprises a movable rack lower plate, a movable rack upper plate and a movable rack guide column arranged between the movable rack lower plate and the movable rack upper plate; the movable rack lower plate is located below the fixed rack bearing plate, the movable rack upper plate is located above the fixed rack bearing plate, and meanwhile the movable rack guide columns penetrate through the fixed rack bearing plate. A telescopic driving structure is arranged between the movable rack lower plate and the fixed rack bearing plate; a forming mold is arranged above the fixed rack bearing plate; foam compression molding is achieved through relative movement of the movable rack and the fixed rack, and the mold ejector pin structure guarantees separation of a foam compression molding part and a molding mold.

Description

Technical Field

[0001] The utility model belongs to the technical field of foam production equipment, and particularly relates to a foam molding device. Background Art

[0002] With the maturity of the technology and production of foam materials, their application fields have gradually become extensive. There is an urgent need in the application market to replace metal formed parts with foam formed parts to achieve the effect of weight reduction in light assembly, and at the same time meet the requirements of application scenarios such as heat insulation, buffering, and waterproofing. Based on the production demand of foam formed parts, a molding device for molding foam formed parts by pressing is required. Summary of the Utility Model

[0003] In view of one or more of the above defects or improvement requirements of the prior art, the utility model provides a foam molding device, which realizes the foam molding by the relative movement of the moving frame and the fixed frame.

[0004] To achieve the above object, the utility model provides a foam molding device, which includes a fixed frame and a moving frame;

[0005] The fixed frame includes a fixed frame bottom plate, a fixed frame bearing plate and fixed frame columns arranged between the two; the moving frame includes a moving frame lower plate, a moving frame upper plate and moving frame guide columns arranged between the two;

[0006] The moving frame lower plate is located below the fixed frame bearing plate, the moving frame upper plate is located above the fixed frame bearing plate, and at the same time the moving frame guide columns penetrate through the fixed frame bearing plate; a telescopic driving structure is arranged between the moving frame lower plate and the fixed frame bearing plate;

[0007] A molding die is arranged above the fixed frame bearing plate. When the moving frame upper plate moves vertically downward under the action of the telescopic driving structure, the foam can be molded by pressing.

[0008] As a further improvement of the utility model, the fixed end of the telescopic driving structure is connected to the fixed frame bearing plate, and the telescopic end is connected to the moving frame lower plate.

[0009] As a further improvement of the utility model, a plurality of ejector pin assemblies are arranged on the molding die. The ejector pin assembly includes a die ejector pin and an ejector pin driving structure; the ejector pin driving structure is arranged below the fixed frame bearing plate, the die ejector pin passes through the molding die and the fixed frame bearing plate, and the bottom is connected to the ejector pin driving structure.

[0010] As a further improvement of the utility model, a connecting plate is arranged between the die ejector pin and the ejector pin driving structure.

[0011] As a further improvement of the present utility model, at least two mold ejector pins are arranged in the same row, and the mold ejector pins in the same row are connected to the ejector pin driving structure through the same connecting plate.

[0012] As a further improvement of the present utility model, a distance sensing structure is provided between the upper plate of the moving frame and the bearing plate of the fixed frame, and the distance sensing structure is electrically connected to the ejector pin driving structure.

[0013] As a further improvement of the present utility model, the distance sensing structure is an ejector pin position ruler. The ejector pin position ruler includes an outer sleeve connected to the upper plate of the moving frame and an inner sliding rod connected to the bearing plate of the fixed frame. An inductor is provided on the outer sleeve, and a plurality of sensing points are provided on the sliding rod.

[0014] As a further improvement of the present utility model, a water passing port is provided on the side of the forming mold, and the water passing port includes a water inlet and a water outlet.

[0015] As a further improvement of the present utility model, a plurality of micropores are provided on the top surface of the forming mold.

[0016] As a further improvement of the present utility model, four fixed frame columns are provided between the bottom plate of the fixed frame and the bearing plate of the fixed frame; and / or,

[0017] Four moving frame guide columns are provided between the lower plate and the upper plate of the moving frame.

[0018] Generally speaking, compared with the prior art, the above technical solutions conceived by the present utility model have the following beneficial effects:

[0019] (1) In the foam compression molding device of the present utility model, the moving frame moves vertically along the fixed frame through the guide columns, and the foam is directly pressed down by the upper plate of the moving frame. The whole pressing and moving process is stable, ensuring the molding quality of the foam compression molding parts.

[0020] (2) In the foam compression molding device of the present utility model, the mold ejector pin structure ensures the separation of the foam compression molding parts from the forming mold, avoiding the trouble of non - continuous production caused by difficult demolding of the foam compression molding parts.

[0021] (3) In the foam compression molding device of the present utility model, the forming mold can pass water, avoiding the abnormal quality of the foam compression molding parts caused by the increase in the mold temperature during continuous production.

[0022] (4) In the foam compression molding device of the present utility model, micropores are provided on the forming mold, and the gas generated during the process of pressing the foam can be discharged through the micropores and the ejector pin holes on the mold, further ensuring the quality of the foam compression molding parts. Description of the Drawings

[0023] Figure 1 This is a three-dimensional structure schematic diagram of the foam molding device of the present utility model;

[0024] Figure 2 This is a three-dimensional structure schematic diagram of the foam molding device of the present utility model from another perspective;

[0025] Figure 3 This is a planar structure schematic diagram of the foam molding device of the present utility model;

[0026] Figure 4 This is a planar structure schematic diagram of the foam molding device of the present utility model from another perspective.

[0027] In all the drawings, the same reference numerals represent the same technical features, specifically: 1. Fixed frame bottom plate; 2. Fixed frame load-bearing plate; 3. Fixed frame column; 4. Moving frame lower plate; 5. Moving frame upper plate; 6. Moving frame guide post; 7. Telescopic drive structure; 8. Forming die; 9. Ejector position gauge; 10. Die ejector pin; 11. Ejector drive structure; 12. Connecting plate; 13. Water inlet. Detailed implementation manners

[0028] In order to make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model. In addition, the technical features involved in the various embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0029] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

[0030] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present utility model, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0031] In the present utility model, unless otherwise clearly stipulated and defined, terms such as "installation", "connection", "linkage", "fixation", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0032] In the present utility model, unless otherwise clearly stipulated and defined, the first feature being "above" or "below" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over", and "on top of" the second feature can be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature is at a higher horizontal height than the second feature. The first feature being "below", "beneath", and "underneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature is at a lower horizontal height than the second feature.

[0033] As a preferred embodiment of the present utility model, as Figures 1 to 4 shown, a foam molding device is provided, which includes a fixed frame and a moving frame; the fixed frame includes a fixed frame bottom plate 1, a fixed frame bearing plate 2, and fixed frame columns 3 provided between the two; the moving frame includes a moving frame lower plate 4, a moving frame upper plate 5, and moving frame guide columns 6 provided between the two. The moving frame lower plate 4 is located below the fixed frame bearing plate 2, the moving frame upper plate 5 is located above the fixed frame bearing plate 2, and at the same time, the moving frame guide columns 6 penetrate through the fixed frame bearing plate 2, so that the moving frame can move vertically along the fixed frame bearing plate 2 of the fixed frame.

[0034] A telescopic driving structure 7 is provided between the moving frame lower plate 4 and the fixed frame bearing plate 2. More preferably, the fixed end of the telescopic driving structure 7 is connected to the bottom of the fixed frame bearing plate 2, and the telescopic end is connected to the top of the moving frame lower plate 4. Thus, under the action of the telescopic driving structure 7, the moving frame guide columns 6 are driven to move vertically along the fixed frame bearing plate 2. The telescopic driving structure 7 includes, but is not limited to, a hydraulic cylinder, an oil cylinder, or a lead screw structure capable of realizing linear movement, etc., as long as it can realize vertical linear movement.

[0035] Above the fixed frame bearing plate 2, a molding die 8 is provided for placing the preheated and softened foam to be molded. The molding die 8 is also located below the moving frame upper plate 5. When the moving frame upper plate 5 moves vertically downward under the action of the telescopic driving structure 7, the foam on the molding die 8 can be molded.

[0036] In a preferred embodiment, to improve the support stability and moving stability, four fixed frame columns 3 are provided between the fixed frame bottom plate 1 and the fixed frame load-bearing plate 2; four moving frame guide columns 6 are provided between the moving frame lower plate 4 and the moving frame upper plate 5.

[0037] In a preferred embodiment, a plurality of ejector pin assemblies are provided on the molding die 8. The ejector pin assemblies include die ejector pins 10 and ejector pin driving structures 11. Among them, the die ejector pins 10 vertically penetrate through the molding die 8. Correspondingly, a plurality of vertical ejector pin holes are provided on the molding die 8; the ejector pin driving structures 11 are arranged below the fixed frame load-bearing plate 2. The die ejector pins 10 pass through the molding die 8 and the fixed frame load-bearing plate 2, and the bottom is connected to the ejector pin driving structures 11. Driven by the ejector pin driving structures 11, the die ejector pins 10 are driven to extend upward out of the molding die 8 or retract downward below the top surface of the molding die 8 or be flush with the top surface of the molding die 8.

[0038] Before placing the foam to be molded, the die ejector pins 10 are retracted to avoid affecting the placement of the foam. After the foam is molded, the die ejector pins 10 are extended, which can ensure the separation of the foam molded part from the molding die 8 and avoid the trouble of non - continuous production caused by difficult demolding of the foam molded part.

[0039] Further preferably, the ejector pin driving structures 11 are connected to the die ejector pins 10 through connecting plates 12. Specifically, the telescopic ends of the ejector pin driving structures 11 are connected to the bottoms of the connecting plates 12, and the tops of the connecting plates 12 are connected to the die ejector pins 10. More preferably, at least two die ejector pins 10 are arranged in the same row on the molding die 8, and the die ejector pins 10 in the same row are connected to the ejector pin driving structures 11 through the same connecting plate 12.

[0040] Similarly, the ejector pin driving structures 11 include but are not limited to hydraulic cylinders, oil cylinders, or lead screw structures that can achieve linear movement, as long as they can achieve vertical linear movement.

[0041] Further preferably, to enable the ejector pin assemblies to achieve automatic lifting, a distance sensing structure is also provided between the moving frame upper plate 5 and the fixed frame load-bearing plate 2. The distance sensing structure is electrically connected to the ejector pin driving structures 11. By sensing the distance between the two through the distance sensing structure, the lifting of the ejector pin assemblies is controlled. For example, when it senses that the distance between the two increases, it controls the ejector pin driving structures 11 to act, so that the die ejector pins 10 extend to separate the foam molded part from the molding die 8; the ejector pin driving structures 11 can be further provided with a delay time, and after reaching the set delay time, it controls the die ejector pins 10 to retract.

[0042] Exemplarily, in a specific embodiment shown in the attached drawings, the distance sensing structure is the thimble position ruler 9, which is linked with the thimble driving structure 11. The thimble position ruler 9 includes an outer sleeve connected to the upper plate 5 of the moving machine frame and an inner sliding rod connected to the bearing plate 2 of the fixed machine frame. When the moving machine frame moves vertically, the outer sleeve can be sleeved outside the inner sliding rod and move relatively. An inductor is provided on the outer sleeve, and a number of sensing points are provided on the sliding rod. When the moving machine frame moves vertically downward, the outer sleeve of the thimble position ruler 9 sleeves downward outside the inner sliding rod. When the moving machine frame moves vertically upward, the outer sleeve moves upward. When it senses that the thimble position ruler 9 becomes longer to a set distance, that is, when the distance between the upper plate 5 of the moving machine frame and the bearing plate 2 of the fixed machine frame increases to the set distance, an induction signal is transmitted to the thimble driving structure 11 to control the mold thimble 10 to extend and separate the foam molded part from the molding die 8. Further, according to the delay time set by the thimble driving structure 11, the control mold thimble 10 is controlled to retract, and then the foam molded part is taken out, so as to ensure that the mold thimble 10 is in the retracted state when the next foam is placed on the molding die 8.

[0043] It should be noted that the thimble position ruler 9 shown in the attached drawings of the present utility model is only for illustration. The length or the setting position of the outer sleeve in the thimble position ruler 9 needs to ensure that it will not hinder the downward pressure of the upper plate 5 of the moving machine frame. Additionally, a groove for the outer sleeve to extend into can be provided on the bearing plate 2 of the fixed machine frame to provide a certain accommodation space for the sleeve. Those skilled in the art can design and adjust according to the specific actual situation.

[0044] In a preferred embodiment, a water passing port 13 is provided on the side of the molding die 8, including a water inlet and a water outlet. By passing water through the molding die 8, it avoids the abnormal quality of the foam molded part caused by the increase in the mold temperature during continuous production.

[0045] In a preferred embodiment, a number of micro holes are provided on the top surface of the molding die 8. The gas generated during the process of pressing the foam can be discharged through the micro holes and the thimble holes corresponding to the mold thimble 10, avoiding abnormal quality of the foam molded part and further ensuring the quality of the foam molded part.

[0046] The working process of the foam molding device according to the embodiment of the present utility model is as follows:

[0047] Place the preheated and softened foam on the molding die 8. The telescopic driving structure 7 acts to push the lower plate 4 of the moving machine frame downward. At the same time, under the action of the guide posts 6 of the moving machine frame, the upper plate 5 of the moving machine frame moves close to the molding die 8 until the upper plate 5 of the moving machine frame contacts the foam. Then, under the continuous output of the telescopic driving structure 7 for pressure holding, the reshaping of the foam in the molding die 8 is completed. During the process of the upper plate 5 of the moving machine frame moving downward, the thimble position ruler 9 becomes shorter.

[0048] After the foam is shaped, the telescopic drive structure 7 acts to push the lower plate 4 of the driving frame upward. Under the action of the guide post 4 of the driving frame, the upper plate 5 of the driving frame moves away from the forming die 8. At the same time, the ejector position ruler 9 elongates. When it moves upward to the set position, the ejector position ruler 9 transmits a signal to the ejector drive structure 11 to act, ejecting the die ejector 10, indirectly ejecting the shaped foam from the forming die 8. Through the delay setting of the ejector drive structure 11, the die ejector 10 is controlled to retract into the forming die 8 (for example, after a few seconds of delay, the drive structure 11 controls the die ejector 10 to retract), and then the foam molded part can be taken out.

[0049] Those skilled in the art can easily understand that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A foam molding device, characterized in that: Including fixed frame and machine frame; The fixed frame includes a fixed frame bottom plate, a fixed frame load-bearing plate and a fixed frame column arranged between the two; the motor frame includes a motor frame lower plate, a motor frame upper plate and a motor frame guide column arranged between the two; The lower plate of the motive frame is located below the load-bearing plate of the fixed frame, and the upper plate of the motive frame is located above the load-bearing plate of the fixed frame, and the guide column of the motive frame passes through the load-bearing plate of the fixed frame; a telescopic driving structure is provided between the lower plate of the motive frame and the load-bearing plate of the fixed frame; A forming mold is arranged above the load-bearing plate of the fixed frame, and when the upper plate of the fixed frame moves vertically downward under the action of the telescopic driving structure, the foam can be molded.

2. The foam molding device according to claim 1, characterized in that: The fixed end of the telescopic driving structure is connected to the fixed frame load-bearing plate, and the telescopic end is connected to the lower plate of the machine frame.

3. The foam molding device according to claim 1, characterized in that: The molding die is provided with a plurality of ejector pin assemblies, and the ejector pin assemblies include a mold ejector pin and an ejector pin driving structure; the ejector pin driving structure is arranged below the fixed frame load-bearing plate, the mold ejector pin passes through the molding die and the fixed frame load-bearing plate, and the bottom is connected to the ejector pin driving structure.

4. The foam molding device according to claim 3, characterized in that: A connecting plate is provided between the mold ejector pin and the ejector pin driving structure.

5. The foam molding device according to claim 4, characterized in that: At least two mold ejectors are arranged in the same row, and the mold ejectors in the same row are connected to the ejector driving structure through the same connecting plate.

6. The foam molding device according to any one of claims 3 to 5, characterized in that: A distance sensing structure is provided between the upper plate of the machine frame and the load-bearing plate of the fixed frame, and the distance sensing structure is electrically connected to the ejector drive structure.

7. The foam molding device according to claim 6, characterized in that: The distance sensing structure is a thimble position ruler, which includes an external sleeve connected to the upper plate of the machine frame and an internal slide bar connected to the fixed frame load-bearing plate. A sensor is provided on the external sleeve, and a plurality of sensing points are provided on the slide bar.

8. The foam molding device according to any one of claims 1 to 5 or 7, characterized in that: A water inlet is provided on the side of the forming mold, and the water inlet includes a water inlet and a water outlet.

9. The foam molding device according to any one of claims 1 to 5 or 7, characterized in that: The top surface of the forming mold is provided with a plurality of micro holes.

10. The foam molding device according to any one of claims 1 to 5 or 7, characterized in that: Four fixed frame columns are arranged between the fixed frame bottom plate and the fixed frame load-bearing plate; and / or, Four machine frame guide columns are arranged between the machine frame lower plate and the machine frame upper plate.

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