Plastic bottle cap compression mold capable of rapidly returning materials

Abstract

The utility model relates to the technical field of plastic bottle caps, in particular to a plastic bottle cap compression mold capable of rapidly returning materials, which comprises a lower mold, an upper mold and material returning assemblies, the top of the lower mold is slidably connected with a mounting frame, the bottom of the mounting frame is rotatably connected with the upper mold corresponding to the lower mold, and the material returning assemblies are arranged on two sides of the lower mold; a cavity is formed in the lower die, an annular flow guide groove is formed in the position, located on the periphery of the cavity, in the lower die, and a spiral blade is connected into the annular flow guide groove in a welded mode. A hollow groove is formed in the inner side of the upper die, and an annular heat-conducting fin is connected into the hollow groove through a bolt; by additionally arranging the auxiliary heat dissipation and cooling mechanism and utilizing the modes of flow guide, heat exchange and air supply, the plastic bottle cap is subjected to compression molding processing, meanwhile, the mold and the bottle cap are subjected to heat dissipation and cooling treatment, the cooling and shaping speed of the bottle cap is increased, and therefore the material returning efficiency is improved, and the using effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic bottle caps, in particular to a plastic bottle cap compression mould with fast material return. Background Art

[0002] Plastic bottle caps are a common packaging form for bottles, cans, and barrels, and are especially widely used in the beverage, chemical, and pharmaceutical fields. Plastic bottle caps are made by compression molding. A plastic bottle cap compression molding machine is a plastic molding machine that places a predetermined amount of hot-melt plastic into a concave mold and then uses a punch to pressurize and mold it. In the process of compression molding of plastic bottle caps, it is necessary to use a compression mold.

[0003] Currently, when using compression molding molds, there is a lack of auxiliary cooling mechanism. Usually, in the process of using compression molding molds to produce plastic bottle caps, a certain amount of time is required to wait for the plastic bottle caps to be shaped before they can be removed from the mold, resulting in a relatively poor continuity of the actual compression molding production process, which is likely to affect the production efficiency of the plastic bottle caps. Therefore, a plastic bottle cap compression molding mold with fast material removal is proposed to facilitate the addition of an auxiliary heat dissipation cooling mechanism. By utilizing the methods of diversion, heat exchange, and air supply, the mold and the bottle cap are subjected to heat dissipation and temperature reduction treatment while the plastic bottle caps are compression-molded, thereby accelerating the cooling and shaping speed of the bottle caps, thereby accelerating the material removal efficiency and improving the use effect. Utility Model Content

[0004] In view of the problems in the prior art, the utility model provides a plastic bottle cap compression mold with rapid material return, so as to facilitate heat dissipation and temperature reduction of the mold and the bottle cap, accelerate the cooling and shaping speed of the bottle cap, and thus improve the use effect.

[0005] The technical solution adopted by the utility model to solve the technical problem is a plastic bottle cap compression mold with rapid material withdrawal, comprising a lower mold, an upper mold and a material withdrawal assembly, wherein the top of the lower mold is slidably connected to a mounting frame, and the bottom of the mounting frame is rotatably connected to an upper mold corresponding to the lower mold, and material withdrawal assemblies are provided on both sides of the lower mold;

[0006] A cavity is formed in the lower mold, an annular guide groove is formed in the lower mold at the periphery of the cavity, and a spiral blade is connected to the annular guide groove by welding;

[0007] A hollow groove is provided on the inner side of the upper mold, an annular heat conducting plate is connected to the hollow groove by bolts, and an air supply coil is laid in the annular heat conducting plate.

[0008] By adopting the above technical solution, an auxiliary diversion and heat dissipation mechanism can be added, and the mold can be cooled down during the compression molding process by using diversion, air supply and heat exchange, thereby reducing the gap between cooling and material withdrawal, improving the flexibility of material withdrawal and the continuity of compression molding, and at the same time helping to extend the service life of the mold.

[0009] Specifically, the material stripping assembly includes a clamping frame, one side of the clamping frame is rotatably connected to a paddle, and one side of the paddle is connected to a rotating rod via a bolt.

[0010] By adopting the above technical solution, the flipping action is conveniently used to automatically clamp and return the plastic bottle cap after the compression molding is completed. The structure is simple, the cost is low, and the use is more reasonable and reliable.

[0011] Specifically, the bottom of the lower mold is connected to a delivery pump through bolts, and the discharge end of the delivery pump is connected to the annular guide groove through a pipeline. A return pipe is provided on the surface of one side of the lower mold, and the return pipe is connected to the annular guide groove.

[0012] By adopting the above technical solution, it is convenient to connect to an external refrigerant storage device, transport refrigerant into the annular guide groove, assist in cooling the lower mold, and facilitate sending the used refrigerant to the heat dissipation equipment for heat dissipation reflux treatment.

[0013] Specifically, air holes are provided on the surface of the upper mold, and the air holes are connected to the air supply coil, and the outer surface of the upper mold is provided with external threads.

[0014] By adopting the above technical solution, it is convenient to connect external fan equipment to deliver cold air into the air supply coil, and perform auxiliary cooling treatment on the upper mold, so as to facilitate the formation of the internal thread of the plastic bottle cap.

[0015] Specifically, a recess corresponding to the rotating rod is opened on one side of the clamping frame, and both ends of the rotating rod are connected to the rotating shaft by bolts, and the rotating rod is rotated to connect to the recess through the rotating shaft. A coil spring is provided on the outer periphery of the rotating shaft, and one end of the coil spring is connected to the rotating shaft by welding, and the other end of the coil spring is connected to the recess through a slot.

[0016] By adopting the above technical solution, it is convenient for the pick to rotate and connect to the clamping frame, and the elastic deformation can be used to drive the pick to rotate, so that the plastic bottle cap is automatically turned outward to realize the material withdrawal action.

[0017] Specifically, the mounting frame includes a rotary motor, and the rotary motor is connected to the upper mold through a drive shaft. Both sides of the lower mold are connected to the support frame through bolts. The outer side of the support frame is connected to the electric push rod through bolts, and the electric push rod is connected to the material return assembly through the drive shaft.

[0018] By adopting the above technical solution, it is convenient to drive the upper mold to rotate, perform thread forming on the plastic bottle cap, assist in material removal and separation of the upper mold, and facilitate to drive the material removal component to move back and forth to clamp the plastic bottle cap.

[0019] Beneficial effects of the utility model:

[0020] The utility model discloses a rapid material-removing compression-molding mold for plastic bottle caps, which can add an auxiliary cooling mechanism by means of a lower mold, an annular guide groove, spiral blades, an upper mold, a hollow groove, an annular heat conducting plate and an air supply coil. By means of air diversion, air supply and heat exchange, the heat in the mold and the bottle cap can be brought out while the bottle cap is compression-molded, thereby achieving the effect of auxiliary cooling and heat dissipation, thereby shortening the intervals between compression molding, cooling and material removal, improving the convenience of material removal and making the use more stable and quick.

[0021] The utility model discloses a rapid material-returning compression-molding mold for plastic bottle caps, which can add an automatic material-pushing mechanism by means of the provided clamping frame, paddle, rotating rod, rotating shaft and coil spring. While clamping and retracting the plastic bottle caps, the flipping caused by elastic deformation is utilized to drive the plastic bottle caps to slide outward, thereby achieving the effect of automatic material-pushing. This not only improves the convenience of material-returning and the continuity of compression-molding processing, but also helps to reduce the cost of use and has high practical value. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0024] Figure 2 This is a schematic diagram of the cross-sectional structure of the lower mold of the present utility model;

[0025] Figure 3 This is a schematic diagram of the cross-sectional structure of the upper mold of the present utility model;

[0026] Figure 4 This is a schematic structural diagram of the material stripping assembly of the present utility model;

[0027] In the figure: 1. Lower mold; 101. Cavity; 102. Annular guide groove; 103. Spiral blade; 104. Delivery pump; 105. Return pipe; 2. Mounting frame; 201. Rotary motor; 3. Upper mold; 301. Hollow groove; 302. Annular heat conducting plate; 303. Air coil; 304. Air hole; 305. External thread; 4. Material removal assembly; 401. Clamping frame; 402. Notch; 403. Pick; 404. Rotating rod; 405. Rotating shaft; 406. Coil spring; 5. Support frame; 6. Electric push rod. DETAILED DESCRIPTION

[0028] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0029] In order to facilitate the heat dissipation and temperature reduction of the mold and bottle cap, speed up the cooling and shaping speed of the bottle cap, thereby improving the use effect, such as Figure 1-3 As shown, the utility model discloses a quick-return plastic bottle cap compression mold, comprising a lower mold 1, an upper mold 3 and a material return assembly 4. The top of the lower mold 1 is slidably connected to a mounting frame 2, and the bottom of the mounting frame 2 is rotatably connected to an upper mold 3 corresponding to the lower mold 1. Both sides of the lower mold 1 are provided with material return assemblies 4.

[0030] A cavity 101 is defined in the lower die 1 , an annular guide groove 102 is defined in the lower die 1 on the periphery of the cavity 101 , and a spiral blade 103 is connected to the annular guide groove 102 by welding;

[0031] A hollow groove 301 is formed on the inner side of the upper mold 3 , an annular heat conducting plate 302 is connected to the hollow groove 301 via bolts, and an air supply coil 303 is laid in the annular heat conducting plate 302 .

[0032] When in use, an auxiliary diversion and heat dissipation mechanism can be added through the lower mold 1, the annular guide groove 102, the spiral blade 103, the upper mold 3, the hollow groove 301, the annular heat conducting plate 302, and the air supply coil 303. By utilizing the diversion, air supply, and heat exchange methods, the mold can be cooled while the compression molding process is being performed, thereby reducing the gap for cooling and material withdrawal, improving the flexibility of material withdrawal and the continuity of the compression molding process, and at the same time helping to extend the service life of the mold.

[0033] In order to improve the flexibility of material return, for example, Figure 1 、 Figure 4 As shown, the present invention further includes that the material stripping assembly 4 includes a clamping frame 401 , one side of the clamping frame 401 is rotatably connected to a paddle 403 , and one side of the paddle 403 is connected to a rotating rod 404 via a bolt.

[0034] When in use, the clamping frame 401, the paddle 403 and the rotating rod 404 facilitate the use of a flipping action to automatically clamp and return the plastic bottle cap after the compression molding is completed. The structure is simple, the cost is low, and the use is more reasonable and reliable.

[0035] For example, Figure 2As shown, the utility model also includes that the bottom of the lower mold 1 is connected to a delivery pump 104 by bolts, and the discharge end of the delivery pump 104 is connected to the annular guide groove 102 through a pipeline, and a return pipe 105 is provided on the surface of one side of the lower mold 1, and the return pipe 105 is connected to the annular guide groove 102.

[0036] When in use, the delivery pump 104 is used to connect to an external refrigerant storage device, and the refrigerant is delivered to the annular guide groove 102 to assist in cooling the lower mold 1. The used refrigerant is delivered to the heat dissipation device through the reflux pipe 105 for heat dissipation and reflux treatment.

[0037] For example, Figure 3 As shown, the present invention further includes that the surface of the upper mold 3 is provided with air holes 304 , and the air holes 304 are connected to the air supply coil 303 , and the outer surface of the upper mold 3 is provided with external threads 305 .

[0038] When in use, the air hole 304 is used to connect an external fan device to deliver cold air to the air supply coil 303 to assist in cooling the upper mold 3, and the external thread 305 is used to facilitate the formation of the internal thread of the plastic bottle cap.

[0039] For example, Figure 4 As shown, the present invention also includes that a recess 402 corresponding to the rotating rod 404 is opened on one side of the clamping frame 401, and both ends of the rotating rod 404 are connected to the rotating shaft 405 by bolts, and the rotating rod 404 is rotatably connected to the recess 402 through the rotating shaft 405, and a coil spring 406 is provided on the outer periphery of the rotating shaft 405, and one end of the coil spring 406 is connected to the rotating shaft 405 by welding, and the other end of the coil spring 406 is connected to the recess 402 through a slot.

[0040] During use, the notch 402 facilitates the rotation of the paddle 403 to connect to the clamping frame 401. The rotating shaft 405 and the coil spring 406 can utilize elastic deformation to drive the paddle 403 to rotate, so that the plastic bottle cap automatically flips outward to realize the material removal action.

[0041] For example, Figure 1 As shown, the utility model also includes that the mounting frame 2 includes a rotary motor 201, and the rotary motor 201 is connected to the upper mold 3 through a drive shaft, both sides of the lower mold 1 are connected to the support frame 5 through bolts, the outer side of the support frame 5 is connected to the electric push rod 6 through bolts, and the electric push rod 6 is connected to the material return assembly 4 through a drive shaft.

[0042] When in use, the rotary motor 201 is used to drive the upper mold 3 to rotate, perform thread forming on the plastic bottle cap and assist in material removal and separation of the upper mold. The support frame 5 and the electric push rod 6 are used to drive the material removal component 4 to move back and forth to clamp the plastic bottle cap.

[0043] When the utility model is in use, the operator first connects the mounting frame to the cylinder or other driving equipment through bolts, the feeding end of the delivery pump 104 is connected to the refrigerant storage device through a pipeline, and the air hole 304 is connected to the external fan device through a hose. When the plastic bottle cap is subjected to compression molding, the mounting frame 2 and the upper mold 3 are driven by the cylinder or other driving equipment to slide downward, and the raw material in the cavity 101 of the lower mold 1 is subjected to compression molding. At the same time, the delivery pump 104 is manually turned on, and the refrigerant is delivered to the annular guide groove 102 through the delivery pump 104, and then passes through the screws in sequence. The heat of the lower mold 1 and the plastic bottle cap is guided by the rotary blade 103 and carried out from the return pipe 105 to the external radiator for heat exchange treatment. The external fan equipment delivers cold air to the air supply coil 303 in the hollow groove 301 through the air hole 304. The air flow is used to carry the heat absorbed by the annular heat conducting plate 302 out of the upper mold through the air hole 304 on the other side, achieving the effect of synchronous cooling and heat dissipation of the lower mold 1 and the upper mold 3, thereby shortening the interval between compression molding, cooling and material withdrawal, so as to increase the cooling molding speed of the plastic bottle cap and facilitate the continuity of subsequent compression molding process.

[0044] After the compression molding operation on the plastic bottle cap is completed, the plastic bottle cap is driven to slide upward by the mounting frame 2 for reset. At the same time, the electric push rod 6 is manually turned on to drive the clamping frame 401 to slide to both sides of the plastic bottle cap for clamping and limiting fixation. The upper mold 3 is then driven to rotate by the rotary motor 201, so that the external thread 305 rotates in the opposite direction to exit the plastic bottle cap to complete separation. Then the reset action of the electric push rod 6 drives the clamping frame 401 to retract. Under the elastic deformation action of the coil spring 406, the rotating shaft 405 drives the rotating rod 404 and the paddle 403 to rotate outward, and the plastic bottle cap is pried outward, thereby realizing the automatic material withdrawal action. The structure is simple and easy to operate, and the use is more stable and convenient. It can also improve the continuity of the compression molding of the plastic bottle cap and has high practical value.

[0045] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A quick-return plastic bottle cap compression mold, characterized in that: It comprises a lower die (1), an upper die (3) and a material stripping assembly (4); the top of the lower die (1) is slidably connected to a mounting frame (2); the bottom of the mounting frame (2) is rotatably connected to an upper die (3) corresponding to the lower die (1); and both sides of the lower die (1) are provided with a material stripping assembly (4); A cavity (101) is provided in the lower mold (1), an annular guide groove (102) is provided in the lower mold (1) at the periphery of the cavity (101), and a spiral blade (103) is connected to the annular guide groove (102) by welding; A hollow groove (301) is provided on the inner side of the upper mold (3), an annular heat conducting plate (302) is connected to the hollow groove (301) via bolts, and an air supply coil (303) is laid in the annular heat conducting plate (302).

2. A quick-return plastic bottle cap compression mold according to claim 1, characterized in that: The material stripping assembly (4) comprises a clamping frame (401), one side of the clamping frame (401) is rotatably connected to a paddle (403), and one side of the paddle (403) is connected to a rotating rod (404) via a bolt.

3. The rapid-return plastic bottle cap compression mold according to claim 1, characterized in that: The bottom of the lower die (1) is connected to a delivery pump (104) via bolts, and the discharge end of the delivery pump (104) is connected to the annular guide groove (102) via a pipeline. A return pipe (105) is provided on the surface of one side of the lower die (1), and the return pipe (105) is connected to the annular guide groove (102).

4. A quick-return plastic bottle cap compression mold according to claim 1, characterized in that: The surface of the upper mold (3) is provided with air holes (304), and the air holes (304) are connected to the air supply coil (303). The outer surface of the upper mold (3) is provided with external threads (305).

5. The rapid-return plastic bottle cap compression mold according to claim 2, characterized in that: A notch (402) corresponding to the rotating rod (404) is provided on one side of the clamping frame (401), and both ends of the rotating rod (404) are connected to a rotating shaft (405) by bolts, and the rotating rod (404) is rotatably connected to the notch (402) via the rotating shaft (405), and a coil spring (406) is provided on the outer periphery of the rotating shaft (405), and one end of the coil spring (406) is connected to the rotating shaft (405) by welding, and the other end of the coil spring (406) is connected to the notch (402) via a slot.

6. A quick-return plastic bottle cap compression mold according to claim 1, characterized in that: The mounting frame (2) includes a rotary motor (201), and the rotary motor (201) is connected to the upper mold (3) via a drive shaft. Both sides of the lower mold (1) are connected to the support frame (5) via bolts. The outer side of the support frame (5) is connected to the electric push rod (6) via bolts, and the electric push rod (6) is connected to the material removal assembly (4) via a drive shaft.

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