Ejection device for foam profile

Abstract

The utility model provides a foam profile ejection device which is installed on a foam profile mold, installation seats corresponding to through holes are respectively arranged on the outer side of a mold box, a plurality of through holes penetrating through the mold box, a mold seat, a mold core and the installation seats are formed in the foam profile mold, one end of an ejection rod correspondingly extends into the through hole and is in sliding fit with the installation seats, and the other end of the ejection rod is in sliding fit with the mold box. A reset spring is installed on the ejector rod. A driving mechanism for driving the ejector rod to eject is arranged on the outer side of the mold box and comprises a push plate arranged on the outer side of the mold box, a telescopic mechanism for driving the push plate to do reciprocating motion and a plurality of guide rods; one end of each guide rod is fixedly connected with the outer side of the mold box, the push plate is provided with sliding sleeves corresponding to the guide rods, the other ends of the guide rods penetrate through the sliding sleeves to be in sliding fit with the sliding sleeves, one end of the telescopic mechanism is connected with the outer side of the mold box, and the other end of the telescopic mechanism is connected with the push plate. The foam profile ejection device is used for producing foam profiles with complex structures or thinner structures.

Description

Technical Field

[0001] The utility model relates to the production of foam profiles, in particular to an ejection device for the foam profiles. Background Art

[0002] Foam plastics are a type of polymer material formed by a large number of gas micropores dispersed in solid plastics. They have the characteristics of light weight, heat insulation, sound absorption, shock absorption, etc., and the dielectric properties are better than those of the base resin. They are widely used in the fields of insulation, sound insulation, packaging materials, and vehicle and ship hulls. In order to facilitate application, it is usually necessary to shape the foam material to obtain different types of foam profiles. There are many types of foam profile molds on the market, such as: a polystyrene foam sheet mold forming device disclosed in Chinese patent CN216914055U, a foam packaging box production and processing mold disclosed in Chinese patent CN213082095U, etc. However, during the demoulding process, the complex and relatively thin foam profiles are easily damaged, and the scrap rate is as high as 30%-40%.

[0003] In order to solve the above problems, people have been seeking an ideal technical solution. Utility Model Content

[0004] The utility model aims to provide a foam profile ejection device in view of the deficiencies of the prior art.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A foam profile ejection device, which is installed on a foam profile mold. The foam profile mold includes a mold box, a plurality of mold seats arranged inside the mold box, and mold cores respectively arranged on each mold seat. Mounting seats are respectively arranged on the corresponding through holes on the outer side of the mold box. The foam profile mold is provided with a plurality of through holes that penetrate the mold box, the mold seat, the mold core, and the mounting seat. One end of a push rod extends into the through hole and slides with the mounting seat, and a return spring is installed on the push rod. A driving mechanism for driving the push rod to eject is arranged on the outer side of the mold box. The driving mechanism includes a push plate arranged on the outer side of the mold box, a telescopic mechanism for driving the push plate to reciprocate, and a plurality of guide rods. One end of the guide rod is fixedly connected to the outer side of the mold box, and the push plate is respectively provided with a sliding sleeve corresponding to each guide rod. The other end of the guide rod passes through the sliding sleeve and slides with the sliding sleeve. One end of the telescopic mechanism is connected to the outer side of the mold box, and the other end of the telescopic mechanism is connected to the push plate.

[0007] The return spring is located between the mounting seat and the push plate, a fixed sleeve is provided at one end of the return spring close to the push plate, a sliding sleeve is provided at one end of the return spring away from the push plate, the push rod passes through the fixed sleeve and the sliding sleeve, and the sides of the push rod and the fixed sleeve are respectively provided with positioning holes and are connected by locking bolts.

[0008] A connecting pipe is arranged on the mounting seat, one end of the ejector rod passes through the connecting rod, one side of the connecting pipe is connected with a feeding interface, and the feeding interface is connected to the interior of the mold box.

[0009] A limit mounting rod is arranged on the mold box, the limit mounting rod is parallel to the guide rod, two sets of limit switches are arranged on the push plate corresponding to the limit mounting rod, the telescopic mechanism is a hydraulic telescopic mechanism, the limit switch is connected to the hydraulic pump of the hydraulic telescopic mechanism, and controls the extension or contraction of the hydraulic telescopic mechanism.

[0010] Compared with the prior art, the utility model has the beneficial effect that the utility model provides a foam profile ejection device. During use, the foam profile is formed in the mold. After the forming is completed, the mold is opened, and the telescopic mechanism contracts and moves the push plate toward the ejector rod. After contacting the ejector rod, the push plate is pushed toward the mold box until the foam profile is ejected. Specifically, multiple groups of ejector rods are arranged at different positions corresponding to the mold core, and the push plate ejects from various positions at the same time to reduce the scrap rate. After ejection, the telescopic mechanism extends and moves the push plate away from the ejector rod, and the ejector rod is reset under the action of the reset spring. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram (I) of the utility model.

[0012] Figure 2 It is a structural schematic diagram (II) of the present utility model.

[0013] Figure 3 It is a partial enlarged structural schematic diagram of the push rod in the utility model.

[0014] In the figure: 1. mold box; 2. guide rod; 3. push plate; 4. telescopic mechanism; 5. sliding sleeve; 6. ejector rod; 7. return spring; 8. fixed sleeve; 9. sliding sleeve; 10. mounting seat; 11. connecting pipe; 12. feeding interface; 13. limit mounting rod; 14. limit switch. DETAILED DESCRIPTION

[0015] The technical solution of the utility model is further described in detail below through specific implementation methods.

[0016] In the description of the utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. "Installed", "provided with", "connected", etc. can adopt conventional means in the prior art, such as: integral setting, snap-on installation, welding connection, adhesive connection, bolt connection, etc. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to specific circumstances, and suitable connection, setting or installation methods can be selected in the prior art.

[0017] like Figure 1-3 As shown, a foam profile ejection device is installed on the foam profile mold, the foam profile mold includes a mold box 1, a plurality of mold bases arranged inside the mold box 1 and mold cores respectively arranged on each mold base, the outer side of the mold box 1 is respectively provided with mounting seats 10 corresponding to the through holes, the foam profile mold is provided with a plurality of through holes that penetrate the mold box 1, the mold base, the mold core and the mounting seat 10, one end of the ejector rod 6 is correspondingly extended into the through hole and slidably cooperates with the mounting seat 10, and a return spring 7 is installed on the ejector rod 6; a driving mechanism for driving the ejector rod 6 to eject is arranged on the outer side of the mold box 1, the driving mechanism includes a push plate 3 arranged on the outer side of the mold box 1, a telescopic mechanism 4 for driving the push plate 3 to reciprocate and a plurality of guide rods 2; one end of the guide rod 2 is fixedly connected to the outer side of the mold box 1, the push plate 3 is respectively provided with a sliding sleeve 5 corresponding to each guide rod 2, the other end of the guide rod 2 passes through the sliding sleeve 5 and slidably cooperates with the sliding sleeve 5, one end of the telescopic mechanism 4 is connected to the outer side of the mold box 1, and the other end of the telescopic mechanism 4 is connected to the push plate 3. Specifically, multiple groups of ejector rods can be provided according to the shape of the foam profile so as to be ejected from multiple positions.

[0018] During use, the foam profile is formed in the mold. After the forming is completed, the mold is opened, and the telescopic mechanism contracts and moves the push plate toward the ejector. After contacting the ejector, the push plate moves toward the mold box until the foam profile is ejected. Specifically, multiple groups of ejectors are set corresponding to different positions of the mold core, and the push plate ejects from various positions at the same time to reduce the scrap rate. After ejection, the telescopic mechanism extends and moves the push plate away from the ejector, and the ejector is reset under the action of the reset spring.

[0019] In one of the embodiments, the return spring 7 is located between the mounting seat 10 and the push plate 3, a fixed sleeve 8 is provided at one end of the return spring 7 close to the push plate 3, a sliding sleeve 9 is provided at one end of the return spring 7 away from the push plate 3, the push rod 6 is arranged through the fixed sleeve 8 and the sliding sleeve 9, and the sides of the push rod 6 and the fixed sleeve 8 are respectively provided with positioning holes and are connected by locking bolts.

[0020] In one embodiment, a connecting tube 11 is provided on the mounting seat 10, one end of the ejector rod 6 passes through the connecting rod, one side of the connecting tube 11 is connected to a feed interface 12, and the feed interface 12 is connected to the interior of the mold box 1. Specifically, the outer diameter of the sliding sleeve and the fixed sleeve is larger than the inner diameter of the connecting tube and the through hole. After the ejector rod is subjected to the force of the push plate, it moves toward the connecting tube. During the movement, the sliding sleeve abuts against the connecting tube, and the reset spring is compressed. When the ejection operation is completed, the push plate is removed, and the reset spring is no longer subjected to force and restores its original length, thereby resetting the ejector rod. In addition, during the preparation of the foam profile, the feed interface can be connected to the feed pipe to facilitate the injection of raw materials into the mold.

[0021] In one of the embodiments, in order to prevent the push rod from completely falling out of the connecting tube or the through hole, corresponding limiting members can be provided on the connecting tube or the through hole and the push rod, for example: two groups of first limiting rings are provided in the connecting tube or the through hole, and a second limiting ring is provided on the push rod, the first limiting ring and the second limiting ring are coaxial with the connecting tube and the through hole, there is a certain distance between the two groups of first limiting rings, the second limiting ring is located between the two groups of first limiting rings, the outer diameter of the second limiting ring is larger than the inner diameter of the first limiting ring, and during the movement of the push rod, the second limiting ring moves between the two groups of first limiting rings.

[0022] In one embodiment, a limit mounting rod 13 is provided on the mold box 1, and the limit mounting rod 13 is parallel to the guide rod 2. Two sets of limit switches 14 are installed on the limit mounting rod 13 corresponding to the push plate 3. The telescopic mechanism 4 is a hydraulic telescopic mechanism. A certain distance is maintained between the two sets of limit switches. The limit switch 14 is connected to the hydraulic pump of the hydraulic telescopic mechanism to control the opening and closing of the hydraulic pump, thereby extending or contracting the hydraulic telescopic mechanism 4. When the push plate contacts the limit switch during movement, it means that it has moved to the extreme position and needs to stop extending or contracting. Specifically, the limit switch, hydraulic pump, hydraulic telescopic mechanism and corresponding control circuit all adopt the existing technology.

[0023] The above embodiments can be combined with each other.

[0024] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the utility model can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the utility model, which should be included in the scope of the technical solution for protection of the utility model.

Claims

1. A foam profile ejector device, the ejector device is installed on a foam profile mold, the foam profile mold includes a mold box, a plurality of mold bases arranged inside the mold box and mold cores respectively arranged on each mold base, characterized in that: Mounting seats are respectively provided on the corresponding through holes on the outer side of the mold box, and a number of through holes that penetrate the mold box, the mold base, the mold core and the mounting seats are opened on the foam profile mold. One end of the push rod extends into the through hole and slides with the mounting seat, and a return spring is installed on the push rod; a driving mechanism for driving the push rod to be ejected is provided on the outer side of the mold box, and the driving mechanism includes a push plate arranged on the outer side of the mold box, a telescopic mechanism for driving the push plate to reciprocate, and a number of guide rods; one end of the guide rod is fixedly connected to the outer side of the mold box, and the push plate is respectively provided with a sliding sleeve corresponding to each guide rod, and the other end of the guide rod passes through the sliding sleeve and slides with the sliding sleeve, one end of the telescopic mechanism is connected to the outer side of the mold box, and the other end of the telescopic mechanism is connected to the push plate.

2. The ejection device for foam profile according to claim 1, characterized in that: The return spring is located between the mounting seat and the push plate, a fixed sleeve is provided at one end of the return spring close to the push plate, a sliding sleeve is provided at one end of the return spring away from the push plate, the push rod passes through the fixed sleeve and the sliding sleeve, and the sides of the push rod and the fixed sleeve are respectively provided with positioning holes and are connected by locking bolts.

3. The ejection device for foam profile according to claim 2, characterized in that: A connecting pipe is arranged on the mounting seat, one end of the ejector rod passes through the connecting rod, one side of the connecting pipe is connected with a feeding interface, and the feeding interface is connected to the interior of the mold box.

4. The ejection device for foam profile according to claim 3, characterized in that: A limit mounting rod is arranged on the mold box, two sets of limit switches are installed on the limit mounting rod corresponding to the push plate, the telescopic mechanism is a hydraulic telescopic mechanism, the limit switch is connected to the hydraulic pump of the hydraulic telescopic mechanism to control the extension or contraction of the hydraulic telescopic mechanism.

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