Ejection mechanism of foam product forming mold

Abstract

The utility model relates to the technical field of molds, in particular to an ejection mechanism of a foam product forming mold, which comprises a mold body, an ejection device and a supporting structure, a first groove and a second groove in the mold body are used for placing supporting legs in the supporting structure, and the ejection device is arranged in the mold body. A telescopic rod in an ejection device is movably connected to the hollow position of the lower end of an upper-end mold in the mold body, a sliding block is welded to the outer side of the telescopic rod, a first connecting block protrudes out of the lower end of the telescopic rod, and the inner side of the first connecting block is hollow to form a sliding groove. The mold at the upper end is moved, so that the supporting legs at the lower end can be inserted into the supporting grooves to be fixed, the upper ends of the supporting legs are inserted into the lower ends of the telescopic rods, and the supporting legs and the telescopic rods can be supported through the trapezoidal feet at the lower ends of the supporting legs; and the supporting legs and the telescopic rods are supported, so that the mold inner plate in the upper-end mold can move up and down, and the mold inner plate can eject out a foam product in the upper-end mold.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to an ejection mechanism of a foam product molding mold. Background Art

[0002] At present, foam plastic products have the characteristics of light weight, high energy absorption (cushioning, shock absorption), good shock resistance, etc., and are widely used in the packaging of various precision instruments, meters, vegetables and fruits, etc. The production of foam plastic products is to fill the closed mold cavity with mature expandable polystyrene beads, and pass hot steam through the mold cavity to heat the polystyrene beads in a relatively short time. During heating, the foaming agent remaining in the polystyrene volatilizes, and the polystyrene beads soften and expand due to the heat. Due to the limitation of the mold cavity, the expanded beads are able to fill all the gaps and are completely bonded as a whole. After cooling and shaping, demolding is carried out to obtain foam plastic products. Due to the light weight of foam products, they generally adhere to the upper mold of the mold. The solution of the existing related technology is to drive the ejector rod by a cylinder to eject the workpiece in the upper mold.

[0003] However, after the existing mold is formed, the foam product is easily stuck to the inside of the mold. Although a cylinder-driven ejector is installed inside the mold, the cylinder-driven ejector is sometimes easily stuck inside the mold due to the viscosity of the plastic mold when ejecting the plastic mold stuck to the inside of the mold, resulting in the foam product requiring workers to take out the product. However, since the foam product is hot-melted inside the mold, the foam product is relatively hot and can easily burn the hands of the workers.

[0004] Therefore, in order to solve the above problems, an ejection mechanism of a foam product forming mold is proposed. Utility Model Content

[0005] The utility model aims to provide an ejection mechanism for a foam product forming mold to solve the problem mentioned in the background art that workers are prone to scalding their hands when taking out foam products stuck inside the mold by hand.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an ejection mechanism of a foam product forming mold, comprising: a mold body, an ejection device and a supporting structure;

[0007] The first groove and the second groove in the mold body are used to place the support legs in the support structure. The hollow part at the lower end of the upper mold in the mold body is movably connected to the telescopic rod in the ejection device. A sliding block is welded to the outside of the telescopic rod. A first connecting block protrudes from the lower end of the telescopic rod. The inside of the first connecting block is hollow to form a slide groove. The inside of the slide groove is movably connected to a block in the support structure. The upper end of the block is connected to a rotating shaft with bolts, and the rotating shaft is inserted into the upper end of the support leg.

[0008] Preferably, the upper mold in the mold body, the lower end of the upper mold is hollow to form a first groove, a base is placed at the lower end of the upper mold, the upper end of the base is hollow to form a second groove, and the rear end of the second groove is hollow to form a supporting groove.

[0009] Preferably, the first groove and the second groove in the mold body are used to insert the outer sides of the supporting legs in the supporting structure.

[0010] Preferably, the outer shell of the ejection device is movably connected to the telescopic rod, the outer side of the outer shell is welded to the inner side of the upper mold, sliders are welded on both sides of the telescopic rod, a first connecting block protrudes from the lower end of the telescopic rod, and the interior of the first connecting block is hollow to form a slide groove.

[0011] Preferably, a spring is inserted into the upper end of the telescopic rod, a second connecting block is welded to the upper end of the telescopic rod, the upper end of the second connecting block is connected to the mold inner plate by bolts, and one side of the lower end of the telescopic rod is hollow to form a limiting groove.

[0012] Preferably, the upper ends of the support legs in the support structure are inserted into a rotating shaft, and the interior of the rotating shaft is connected to a clamping block by bolts.

[0013] Preferably, the clamping block is movably connected inside the slide slot, and the lower end of the supporting leg is connected to the trapezoidal foot by bolts.

[0014] Compared with the prior art, the utility model has the following beneficial effects: the utility model can move the upper mold so that the support legs at the lower ends can be inserted into the support grooves to fix the support legs, and the upper ends of the support legs can be inserted into the lower ends of the telescopic rods, and the support legs and the telescopic rods can be supported by the trapezoidal feet at the lower ends of the support legs, and the inner plate of the mold inside the upper mold can be moved up and down by the support of the support legs and the telescopic rod, so that the inner plate of the mold can eject the foam product inside the upper mold.

[0015] 1. The utility model is provided with an upper mold, a first groove, a base, a second groove, a supporting groove, a shell, a telescopic rod, a slider, a first connecting block, a slide groove, a spring, a second connecting block, a mold inner plate and a limiting groove. The supporting legs can be inserted into the first groove and the second groove through the hollow first groove at the lower end of the upper mold and the hollow second groove at the upper end of the base. The telescopic rod movably connected inside the shell can make the telescopic rod support the second connecting block at the upper end so that the second connecting block can support the mold inner plate at the upper end. The limiting groove can make the supporting legs rotate only in the direction of the limiting groove, so that the supporting legs are conveniently stored in the first groove and the second groove.

[0016] 2. The utility model is provided with a support leg, a rotating shaft, a clamping block and a trapezoidal foot. The support leg can be rotated by inserting the rotating shaft into the upper end of the support leg, the rotating shaft can be slid in the slide groove by the clamping block connected with bolts at the lower end of the rotating shaft, and the support leg can be inserted into the supporting groove by the trapezoidal foot. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic side cross-sectional view of the structure of the utility model;

[0018] Figure 2 It is a schematic diagram of a front cross-section of the structure of the utility model;

[0019] Figure 3 It is a schematic front cross-sectional view of the structure of the ejection device and the supporting structure of the utility model;

[0020] Figure 4 It is a schematic side cross-sectional view of the structure of the ejection device and the supporting structure of the utility model.

[0021] In the figure: 1. mold body; 101. upper mold; 102. first groove; 103. base; 104. second groove; 105. support groove; 2. ejector; 201. shell; 202. telescopic rod; 203. slider; 204. first connecting block; 205. slide groove; 206. spring; 207. second connecting block; 208. mold inner plate; 209. limit groove; 3. support structure; 301. support leg; 302. rotating shaft; 303. block; 304. trapezoidal foot. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-4 , an embodiment provided by the utility model:

[0024] An ejection mechanism of a foam product forming mold, comprising: a mold body 1, an ejection device 2 and a supporting structure 3;

[0025] The first groove 102 and the second groove 104 in the mold body 1 are used to place the support leg 301 in the support structure 3. The hollow part at the lower end of the upper mold 101 in the mold body 1 is movably connected to the telescopic rod 202 in the ejection device 2. A slider 203 is welded to the outside of the telescopic rod 202. A first connecting block 204 protrudes from the lower end of the telescopic rod 202. The inner side of the first connecting block 204 is hollow to form a slide groove 205. The inside of the slide groove 205 is movably connected to the block 303 in the support structure 3. The upper end of the block 303 is connected to the rotating shaft 302 with bolts, and the rotating shaft 302 is inserted into the upper end of the support leg 301.

[0026] Furthermore, the upper mold 101 in the mold body 1, the lower end of the upper mold 101 is hollowed into a first groove 102, a base 103 is placed at the lower end of the upper mold 101, the upper end of the base 103 is hollowed into a second groove 104, the rear end of the second groove 104 is hollowed into a support groove 105, the first groove 102 and the second groove 104 are used to place the support leg 301 and the trapezoidal foot 304, and the support groove 105 is used to insert the trapezoidal foot 304.

[0027] Furthermore, the first groove 102 and the second groove 104 in the mold body 1 are used to insert the outer side of the support leg 301 in the support structure 3, and the first groove 102 and the second groove 104 are used to insert the support leg 301 inside to prevent the support leg 301 from being crushed.

[0028] Furthermore, the outer shell 201 in the ejection device 2 is movably connected to the telescopic rod 202, the outer side of the outer shell 201 is welded to the inner side of the upper mold 101, sliders 203 are welded on both sides of the telescopic rod 202, a first connecting block 204 protrudes from the lower end of the telescopic rod 202, the first connecting block 204 is hollow inside to form a slide groove 205, the telescopic rod 202 is movably connected inside the outer shell 201 to enable the telescopic rod 202 to support the second connecting block 207, and the first connecting block 204 is hollow inside to form a slide groove 205 to enable the block 303 to slide in the slide groove 205.

[0029] Furthermore, a spring 206 is inserted into the upper end of the telescopic rod 202, a second connecting block 207 is welded to the upper end of the telescopic rod 202, the upper end of the second connecting block 207 is connected to the mold inner plate 208 with bolts, one side of the lower end of the telescopic rod 202 is hollow to form a limiting groove 209, the spring 206 is inserted into the upper end of the telescopic rod 202 to enable the telescopic rod 202 to be bounced up, and the upper end of the second connecting block 207 is connected to the mold inner plate 208 with bolts to enable the mold plate 208 to support the foam product inside the upper mold 101.

[0030] Furthermore, the upper end of the support leg 301 in the support structure 3 is inserted into the rotating shaft 302 , and the interior of the rotating shaft 302 is connected to the clamping block 303 by bolts. The rotating shaft 302 is used to rotate the support leg 301 .

[0031] Furthermore, the block 303 is movably connected inside the slide groove 205, and the lower end of the support leg 301 is bolted to the trapezoidal foot 304. The block 303 is movably connected inside the slide groove 205 to enable the support leg 301 to slide in the slide groove 205, and the trapezoidal foot 304 is used to support the telescopic rod 202 and the support leg 301.

[0032] Working principle: When in use, first place the material on the upper end of the mold inner plate 208, and then use the rotating shaft 302 to rotate the upper end of the support leg 301, so that the upper end of the support leg 301 rotates from the limiting groove 209 so that the support leg 301 can rotate into the first groove 102, and then place the bottom of the upper mold 101 on the upper end of the base 103 so that the first groove 102 at the lower end of the upper mold 101 fits with the second groove 104 at the upper end of the base 103, and then the molding can be carried out. After the mold is formed, the foam product can be easily attached to the mold. Sometimes the ejection of the internal spring is not practical, so the upper mold 101 can be lifted so that the support leg 301 at the lower end of the upper mold 101 is vertically attached to the lower end of the telescopic rod 202. The upper mold 101 is then placed horizontally downward so that the upper end of the support leg 301 is inserted into the lower end of the telescopic rod 202 so that the support leg 301 does not swing. The two sides of the upper mold 101 can be pressed so that the second connecting block 207 at the upper end of the telescopic rod 202 is against the mold inner plate 208, so that the mold inner plate 208 ejects the plastic mold inside the upper mold 101.

[0033] The above description is only a preferred embodiment of the utility model and does not limit the utility model in any form. Any ordinary technician in the industry can smoothly implement the utility model as shown in the drawings of the specification and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the utility model using the technical content disclosed above are all equivalent embodiments of the utility model. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the utility model are still within the protection scope of the technical solution of the utility model.

Claims

1. An ejection mechanism for a foam product forming mold, comprising: A mold body (1), an ejection device (2) and a support structure (3); The invention is characterized in that: the first groove (102) and the second groove (104) in the mold body (1) are used to place the support legs (301) in the support structure (3); the hollow part at the lower end of the upper mold (101) in the mold body (1) is movably connected to the telescopic rod (202) in the ejection device (2); a sliding block (203) is welded on the outer side of the telescopic rod (202); a first connecting block (204) protrudes from the lower end of the telescopic rod (202); the inner side of the first connecting block (204) is hollow to form a slide groove (205); the slide groove (205) is movably connected to the block (303) in the support structure (3); the upper end of the block (303) is connected to the rotating shaft (302) by bolts; the rotating shaft (302) is inserted into the upper end of the support leg (301).

2. The ejection mechanism of a foam product forming mold according to claim 1, characterized in that: The lower end of the upper mold (101) in the mold body (1) is hollowed out to form a first groove (102); a base (103) is placed at the lower end of the upper mold (101); the upper end of the base (103) is hollowed out to form a second groove (104); and the rear end of the second groove (104) is hollowed out to form a supporting groove (105).

3. The ejection mechanism of a foam product forming mold according to claim 1, characterized in that: The first groove (102) and the second groove (104) in the mold body (1) are used to insert the outer side of the support leg (301) in the support structure (3).

4. The ejection mechanism of a foam product forming mold according to claim 1, characterized in that: The outer shell (201) in the ejection device (2) is movably connected to the telescopic rod (202), the outer side of the outer shell (201) is welded to the inner side of the upper mold (101), and sliding blocks (203) are welded to both sides of the telescopic rod (202).

5. The ejection mechanism of a foam product forming mold according to claim 4, characterized in that: The upper end of the telescopic rod (202) is sleeved with a spring (206), the upper end of the telescopic rod (202) is welded with a second connecting block (207), the upper end of the second connecting block (207) is connected to a mold inner plate (208) by bolts, and one side of the lower end of the telescopic rod (202) is hollow to form a limiting groove (209).

6. The ejection mechanism of a foam product forming mold according to claim 1, characterized in that: The upper end of the support leg (301) in the support structure (3) is inserted into the rotating shaft (302), and the interior of the rotating shaft (302) is connected to a clamping block (303) by bolts.

7. The ejection mechanism of a foam product forming mold according to claim 6, characterized in that: The clamping block (303) is movably connected inside the slide groove (205), and the lower end of the supporting leg (301) is connected to the trapezoidal foot (304) by bolts.

Images