Injection molding device with ejection structure for zipper production

Abstract

The utility model discloses an injection molding device with an ejection structure for zipper production, which relates to the field of zipper production and comprises a base, a lower mold is mounted at the top of the base, a transmission wheel is fixed at the top of the base close to the lower mold, a driving device is mounted on the upper surface of the base, and an upper mold is fixed at the output end of the driving device. The surface of the lower mold is connected with a shaping cavity; according to the injection molding device with the ejection structure for zipper production, under the action of a motor, an ejection block is pushed to push a product out of a molding cavity, product demolding is achieved, the product demolding efficiency can be improved, cooled air circulates in a lower mold through an S-shaped groove, cooling is achieved, the cooling effect of the lower mold is further improved, and the production efficiency is improved. And finally, impact vibration caused by combination of the upper die and the lower die can be reduced through counter-acting force generated when the second spring is extruded, and therefore abrasion of the die and equipment is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of zipper production, in particular to an injection molding device with an ejection structure for zipper production. Background Art

[0002] Zipper production is a process of manufacturing teeth and grooves, coating, assembly and quality control to produce a device for connecting and closing items. This process usually requires high-precision manufacturing processes and equipment, and zipper production usually requires the use of injection molds.

[0003] In the prior art, a Chinese patent with the authorization announcement number CN211251092U discloses an injection molding device for alloy zipper production, which belongs to the field of zipper production. Its technical points include a base and a top plate, the top plate is installed on the upper side of the base through a vertical support frame, the base is provided with an inclined platform with an inclined top surface, a lower injection mold is fixed on the inclined platform, an upper injection mold matching with it is provided on the lower injection mold, a linear motor is fixed on the top plate, the output shaft of the linear motor is connected to the upper injection mold, an injection slot is installed on the top plate, the output end of the injection slot is connected to the inner cavity of the upper injection mold through a connecting pipe, and a front fixing frame is fixed on the front side of the inclined platform. The utility model sets an inclined platform on the workbench, the injection mold is installed on it at an angle, and the injection material can be poured to the end of the injection mold. The two ends of the inclined platform are respectively provided with a material discharge and material collection mechanism, and the material collection mechanism can collect the zipper after injection molding.

[0004] Most of the injection molding devices currently used in the market still have certain shortcomings. As shown in the above-mentioned document, the device is equipped with an inclined platform to realize the folding of the zipper, which improves the convenience of use. However, the mold of the device is easy to stick to the inside of the molding cavity during demolding and needs to be ejected from the inside of the groove in time, which can easily affect the production efficiency. Secondly, the product needs to be cooled and molded first to increase the hardness. The traditional water cooling and air cooling may not be sufficient, and auxiliary reinforcement is needed, and the existing structure needs to be improved. Summary of the invention

[0005] The utility model aims to provide an injection molding device with an ejection structure for zipper production, so as to solve the problems in the above background technology that the injection molding device has no ejection structure and the cooling effect of the device is not good.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an injection molding device with an ejection structure for zipper production, comprising a base, a lower mold is installed on the top of the base, a transmission wheel is fixed on the top of the base close to the lower mold, a driving device is installed on the upper surface of the base, an upper mold is fixed on the output end of the driving device, and a shaping cavity is connected to the surface of the lower mold;

[0007] A first slide groove is provided inside the lower mold, a push rod slides inside the first slide groove, a plurality of ejection blocks are fixed on the top of the push rod, and the ejection blocks are at the same level as the molding cavity, and an ejection structure is provided inside the lower mold, through which the molded product can be ejected from the mold;

[0008] An S-shaped groove is formed all around the side surface of the lower mold, and an auxiliary cooling mechanism is provided on the side surface of the lower mold, through which the temperature inside the lower mold can be cooled.

[0009] Furthermore, the ejection structure includes a sliding block, and the sliding block is fixed at the bottom of the push rod, a second sliding groove is provided at the bottom of the first sliding groove, and the sliding block slides inside the second sliding groove.

[0010] Furthermore, a motor is installed on the ground of the second slide groove, a threaded rod is fixed to the output end of the motor, and the threaded rod and the slider form a threaded connection.

[0011] Furthermore, the auxiliary cooling mechanism includes a fixed block, and the fixed block is fixed on both sides of the lower mold, and connecting blocks are fixed on both sides of the lower mold close to the fixed block.

[0012] Furthermore, a telescopic groove is provided on one side of the connecting block, a first spring is connected inside the telescopic groove, and a positioning block is connected to the end of the first spring.

[0013] Furthermore, the left and right sides of the lower mold are respectively connected with a heat sink and a heat dissipation fan, the sides of the heat sink and the heat dissipation fan are provided with through holes, and the surface of the lower mold is provided with a buffer mechanism.

[0014] Furthermore, the buffer mechanism includes an extrusion groove, and a telescopic block is fixed to the bottom of the extrusion groove, a rubber block is fixed to the top of the telescopic block, and a second spring is connected between the rubber block and the extrusion groove.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The injection molding device with an ejection structure for zipper production, under the action of the motor, pushes the ejection block to push the product out of the molding cavity, thereby realizing product demoulding and improving product demoulding efficiency. Secondly, the cooled air is circulated inside the lower mold through the S-shaped groove to achieve cooling, further improving the cooling effect of the lower mold, so that the product can be quickly cooled and formed, thereby improving production efficiency. Finally, the reaction force generated by the extrusion of the second spring can reduce the impact vibration caused by the merging of the upper mold and the lower mold, thereby reducing the wear of the mold and the equipment;

[0017] 2. Ejector blocks are provided, through which multiple zippers can be demoulded at the same time, which improves the demoulding efficiency of the injection molding device and improves the production efficiency in disguise;

[0018] 3. A slider and a threaded rod are provided. The slider can stably slide inside the second slide groove through the threaded sliding of the threaded rod. The threaded connection has a large torque and can carry more force, thereby improving the stability of demoulding;

[0019] 4. An S-shaped groove is provided, which can better absorb the temperature inside the lower mold through the curved S-shaped groove, effectively improve the cooling effect of the device and speed up the molding efficiency of the product;

[0020] 5. A second spring is provided, which can reduce the impact vibration caused by the merging of the upper die and the lower die, and can also reduce the impact on the product, thereby improving the product quality in disguise and reducing the wear of the components. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0022] Figure 2 This is an enlarged three-dimensional structural diagram of the lower mold of the utility model;

[0023] Figure 3 This is a schematic diagram of the cutaway three-dimensional structure of the lower mold of the utility model;

[0024] Figure 4 This is an enlarged three-dimensional structural diagram of the threaded rod of the utility model;

[0025] Figure 5 This is a schematic diagram of the enlarged three-dimensional structure of the S-shaped groove of the utility model;

[0026] Figure 6 This is an enlarged three-dimensional structural diagram of the heat dissipation fan of the utility model;

[0027] Figure 7 This is an enlarged three-dimensional structural diagram of the heat sink of the utility model

[0028] Figure 8 It is a schematic diagram of the enlarged three-dimensional structure of the rubber block of the utility model.

[0029] In the figure: 1, base; 2, lower mold; 3, transmission wheel; 4, driving device; 5, upper mold; 6, shaping cavity; 201, first slide groove; 202, push rod; 203, ejector block; 204, slider; 205, second slide groove; 206, motor; 207, threaded rod; 208, S-shaped groove; 209, fixing block; 210, connecting block; 211, telescopic groove; 212, first spring; 213, positioning block; 214, cooling fan; 215, through hole; 216, heat sink; 217, extrusion groove; 218, telescopic block; 219, rubber block; 220, second spring. DETAILED DESCRIPTION

[0030] 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. Example

[0031] like Figure 1-Figure 4 The technical solution shown in the figure, the present invention provides the following technical solution: In order to solve the problem of low demoulding efficiency of the device, an ejection structure is disclosed:

[0032] It includes a base 1, a lower mold 2 is installed on the top of the base 1, a transmission wheel 3 is fixed on the top of the base 1 close to the lower mold 2, a driving device 4 is installed on the upper surface of the base 1, an upper mold 5 is fixed on the output end of the driving device 4, a shaping cavity 6 is connected to the surface of the lower mold 2, a first slide groove 201 is opened inside the lower mold 2, a push rod 202 slides inside the first slide groove 201, a plurality of groups of ejection blocks 203 are fixed on the top of the push rod 202, and the ejection blocks 203 are at the same horizontal height as the shaping cavity 6, an ejection structure is arranged inside the lower mold 2, and the molded product can be ejected from the mold through the ejection structure, an S-shaped groove 208 is opened through and around the side of the lower mold 2, and an auxiliary cooling mechanism is arranged on the side of the lower mold 2, and the temperature inside the lower mold 2 can be cooled by the auxiliary cooling mechanism.

[0033] The ejection structure includes a slider 204, and the slider 204 is fixed at the bottom of the push rod 202. A second slide groove 205 is provided at the bottom of the first slide groove 201. The slider 204 slides inside the second slide groove 205. A motor 206 is installed on the ground of the second slide groove 205. A threaded rod 207 is fixed to the output end of the motor 206, and the threaded rod 207 is threadedly connected with the slider 204. When the injection molding device is demoulded, the lower mold 2 and the upper mold 5 will be separated. Starting the output end of the motor 206 can drive the threaded rod 207 to rotate. When the threaded rod 207 rotates, it can drive the slider 204 to perform threaded sliding. When the slider 204 threadedly slides, it can slide through the second slide groove 205. When the slider 204 slides, it can push the push rod 202 to slide inside the first slide groove 201. When the push rod 202 slides, it can push the product upward through the ejection block 203. After the product moves out of the molding cavity 6, demoulding is achieved. The ejection structure can improve the product demoulding efficiency. Example

[0034] like Figure 5-Figure 7 The technical solution shown in the figure, the present invention provides the following technical solution: In order to solve the problem that the cooling effect of the injection molding device is slow and affects the production efficiency, an auxiliary cooling mechanism is disclosed:

[0035] The auxiliary cooling mechanism includes a fixed block 209, and the fixed block 209 is fixed on both sides of the lower mold 2. Connecting blocks 210 are fixed on both sides of the lower mold 2 near the fixed block 209. A telescopic groove 211 is provided on one side of the connecting block 210. A first spring 212 is connected inside the telescopic groove 211. A positioning block 213 is connected to the end of the first spring 212. A heat sink 216 and a heat dissipation fan 214 are connected to the left and right sides of the lower mold 2 respectively. Through holes 215 are provided on the sides of the heat sink 216 and the heat dissipation fan 214. A buffer mechanism is provided on the surface of the lower mold 2. Before the injection molding device is used, the positioning block 213 is pushed to slide through the telescopic groove 211, and the positioning block 213 can squeeze the first spring 212. After the positioning block 213 is squeezed into the telescopic groove 211, the heat dissipation fan 214 is moved to the lower mold 2 On the right side, the heat dissipation fan 214 can drive the through hole 215 to move to the front of the fixed block 209. The heat dissipation fan 214 can be inserted through the fixed block 209 and can slide to the side of the lower mold 2 and the S-shaped groove 208. The positioning block 213 can be reset by the first spring 212 when it is loosened. The heat dissipation fan 214 can be positioned when the positioning block 213 is reset. The heat sink 216 is fixed on the left side of the lower mold 2 in the same way. When the device is used, the impeller inside the heat dissipation fan 214 is started to transport air through the left side of the S-shaped groove 208 to the right side for discharge. When the air passes through the inside of the heat sink 216, the heat can be absorbed by the iron sheet to achieve cooling. The cooled gas can improve the cooling efficiency of the lower mold 2 when it passes through the inside of the S-shaped groove 208, so that the product can be quickly cooled and formed, thereby improving production efficiency. Example

[0036] like Figure 2 and Figure 8 The technical solution shown in the figure, the present invention provides the following technical solution: In order to solve the problem that the injection molding device generates certain vibrations during use, which accelerates the wear of the product, a buffer mechanism is disclosed:

[0037] The buffer mechanism includes an extrusion groove 217, and a telescopic block 218 is fixed at the bottom of the extrusion groove 217, a rubber block 219 is fixed at the top of the telescopic block 218, and a second spring 220 is connected between the rubber block 219 and the extrusion groove 217. When the injection molding device is used, before the upper mold 5 and the lower mold 2 are merged, the upper mold 5 can move to the top of the rubber block 219 for extrusion. When the rubber block 219 is squeezed, it can drive the telescopic block 218 to shrink. At the same time, the rubber block 219 can squeeze the second spring 220. After being squeezed, the second spring 220 can be deformed to generate a reaction force. The upper mold 5 can reduce the impact vibration caused by the merger through the reaction force, thereby reducing the wear of the mold and the equipment. The service life of the product is improved.

[0038] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An injection molding device with an ejection structure for zipper production, comprising a base (1), a lower mold (2) is mounted on the top of the base (1), a transmission wheel (3) is fixed to the top of the base (1) near the lower mold (2), a driving device (4) is mounted on the upper surface of the base (1), an upper mold (5) is fixed to the output end of the driving device (4), and a molding cavity (6) is connected to the surface of the lower mold (2), characterized in that ； A first slide groove (201) is provided inside the lower mold (2), a push rod (202) slides inside the first slide groove (201), a plurality of groups of ejection blocks (203) are fixed on the top of the push rod (202), and the ejection blocks (203) are at the same level as the molding cavity (6), and an ejection structure is provided inside the lower mold (2), and the molded product can be ejected out of the mold through the ejection structure; An S-shaped groove (208) is provided through and around the side of the lower mold (2), and an auxiliary cooling mechanism is provided on the side of the lower mold (2), through which the temperature inside the lower mold (2) can be cooled.

2. The injection molding device with an ejection structure for zipper production according to claim 1, characterized in that: The ejection structure comprises a slider (204), and the slider (204) is fixed at the bottom of the push rod (202), a second slider (205) is provided at the bottom of the first slider (201), and the slider (204) slides inside the second slider (205).

3. The injection molding device with an ejection structure for zipper production according to claim 2, characterized in that: The second slide groove (205) is provided with a motor (206) mounted on the ground, a threaded rod (207) is fixed to the output end of the motor (206), and the threaded rod (207) is threadedly connected to the slider (204).

4. The injection molding device with an ejection structure for zipper production according to claim 1, characterized in that: The auxiliary cooling mechanism comprises a fixed block (209), and the fixed block (209) is fixed on both sides of the lower mold (2), and connecting blocks (210) are fixed on both sides of the lower mold (2) close to the fixed block (209).

5. The injection molding device with an ejection structure for zipper production according to claim 4, characterized in that: A telescopic groove (211) is provided on one side of the connection block (210), a first spring (212) is connected inside the telescopic groove (211), and a positioning block (213) is connected at the end of the first spring (212).

6. The injection molding device with an ejection structure for zipper production according to claim 1, characterized in that: The left and right sides of the lower mould (2) are respectively connected to a heat sink (216) and a heat sink fan (214); through holes (215) are provided on the sides of the heat sink (216) and the heat sink fan (214); and a buffer mechanism is provided on the surface of the lower mould (2).

7. The injection molding device with an ejection structure for zipper production according to claim 6, characterized in that: The buffer mechanism comprises an extrusion groove (217), a telescopic block (218) is fixed to the bottom of the extrusion groove (217), a rubber block (219) is fixed to the top of the telescopic block (218), and a second spring (220) is connected between the rubber block (219) and the extrusion groove (217).

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