A kind of crimping paper cup production punch die

Abstract

The utility model relates to the field of edge curling paper cup, disclose a kind of edge curling paper cup production punch die, including hydraulic device and mould base, the output shaft of hydraulic device is fixedly connected with punch head, the outer camber surface of punch head is fixedly connected with cutting knife, the side of mould base close to hydraulic device is provided with quick-release mould, for realizing the quick disassembly and installation of mould, the inside of quick-release mould is provided with material pushing device. In the utility model, by the mould, the dowel, the positioning ring, the clamping block, the clamping groove, the limit ring being set, can when needing to install mould, the clamping block of mould back is aimed at clamping groove gap, and by rotating clamping block makes that clamping block is embedded in clamping groove, simultaneously dowel also will be inserted into mould base interior, carries out double fixing, when disassembling, only need to pull outwards and rotate mould by connecting ring to be able to take it down, to significantly improve the efficiency that operator replaces or maintains mould.

Description

Technical Field

[0001] This utility model relates to the field of rolled edge paper cups, and in particular to a stamping die for producing rolled edge paper cups. Background Technology

[0002] Molds are specialized tools used in industrial production to give raw materials specific geometric shapes and dimensions. They are one of the core equipment for manufacturing to achieve standardized and large-scale production. In essence, molds use pre-set cavities, structures, or auxiliary components to shape raw materials in a plastic state into semi-finished or finished products that meet design requirements under physical pressure, temperature, or chemical action.

[0003] In existing technologies, for stamping dies, the guide pins and guide sleeves of the upper and lower dies are often used to make the die cutting edge consistent with the movement trajectory of the punch press slide. After positioning, the dies are locked using a common industry-standard fixing method. For small and medium-sized dies, bolts are often used to pass through the die mounting holes and the screw holes of the equipment template, and after tightening, a rigid fixation is formed.

[0004] However, in actual use, fixing the mold with bolts has many obvious limitations. From the perspective of operational efficiency, bolt fixing requires aligning each bolt with the screw holes of the mold and the equipment template one by one. Not only does the hole alignment process rely on manual adjustment, which is time-consuming, but it also requires tightening each bolt one by one with tools such as wrenches and torque wrenches. Similarly, disassembly requires loosening each bolt one by one in the reverse direction. The overall disassembly and assembly process is cumbersome. Especially in production scenarios that require frequent mold switching, it will significantly slow down the production connection rhythm. To address these issues, a stamping mold for producing rolled paper cups is proposed. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a stamping die for producing rolled paper cups, which aims to improve the low efficiency of the existing technology that uses bolts to fix the die, requiring repeated alignment of bolt holes for disassembly and assembly.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a stamping die for producing rolled paper cups, comprising a hydraulic device and a die base, wherein a stamping head is fixedly connected to the output shaft of the hydraulic device, and a cutting blade is fixedly connected to the outer arc surface of the stamping head; a quick-release die is provided on the side of the die base near the hydraulic device for quick disassembly and installation of the die; and an ejector device is provided inside the quick-release die for ejecting and unloading the bottom of the finished rolled paper cup. The quick-release mold includes a mold, a positioning ring fixedly connected to the rear end of the outer arc surface of the mold, a pin slidably connected to the inner surface of the positioning ring, a limit ring fixedly connected to the outer arc surface of the pin, a locking block fixedly connected to the back of the mold, a locking groove sleeved on the outer surface of the locking block, and the back of the locking groove fixedly connected to the mold base.

[0007] As a further description of the above technical solution: The ejector device includes a positioning block, the outer arc surface of which is fixedly connected to the mold, a sliding rod slidably connected to the inner surface of the positioning block, a baffle fixedly connected to one end of the sliding rod, a movable block fixedly connected to the other end of the sliding rod, and an air nozzle threadedly connected to the upper surface of the mold.

[0008] As a further description of the above technical solution: The mold base has an arc-shaped groove at one end near the hydraulic device, and multiple sets of cylindrical insertion holes are provided on the side of the mold base near the hydraulic device.

[0009] As a further description of the above technical solution: The front end of the mold has a groove that matches the stamping head and the cutting blade. The inner surface of the positioning ring has multiple sets of through holes. Inside the through holes on the inner surface of the positioning ring, there is another set of through holes with a relatively small diameter. The outer arc surface of the limiting ring is slidably connected to the positioning ring.

[0010] As a further description of the above technical solution: The outer surface of the limiting ring is elastically connected to the positioning ring by a spring. The diameter of the pin is the same as the inner diameter of the insertion hole at the front end of the mold base. The diameter of the mold is the same as the inner diameter of the groove inside the mold base. The overall shape of the locking block is arc-shaped. The overall shape of the locking block is T-shaped. The overall shape of the locking groove is arc-shaped. The groove inside the locking groove has a groove with the same shape as the locking block. There are multiple sets of pins, and each set of pins is fixedly connected to a connecting ring on the side near the stamping head.

[0011] As a further description of the above technical solution: An exhaust hole is provided at the center of the inner surface of the mold, and the exhaust hole is connected to the air nozzle above.

[0012] As a further description of the above technical solution: The concave surface of the mold is flush with the outer surface of the baffle, and a sealing ring is provided on the outer arc surface of the baffle. The baffle, the positioning block and the movable block have the same diameter.

[0013] As a further description of the above technical solution: A through hole is provided at the center of the inner surface of the positioning block, and a frustum-shaped through hole is provided at the center of the inner surface of the movable block. The movable block and the positioning block are elastically connected by a spring.

[0014] This utility model has the following beneficial effects: 1. In this utility model, by setting up a mold, pin, positioning ring, locking block, locking groove, and limiting ring, when it is necessary to install the mold, the locking block on the back of the mold can be aligned with the gap of the locking groove, and the locking block can be inserted into the locking groove by rotating the locking block. At the same time, the pin will also be inserted into the mold base for double fixation. When disassembling, it is only necessary to pull the connecting ring outward and rotate the mold to remove it, thereby significantly improving the efficiency of operators in replacing or maintaining the mold.

[0015] 2. In this utility model, by setting air nozzles, positioning blocks, baffles, slide rods, and movable blocks, the baffle can be extended by switching the solenoid valve after each stamping, and the bottom of the rolled paper cup can be demolded by the baffle and the ejected airflow. After demolding, the air supply state of the mold can be switched again by the solenoid valve, and the baffle can be pulled back into the mold by the spring force to avoid affecting subsequent stamping. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of a stamping die for producing rolled-edge paper cups according to the present invention. Figure 2 This is a schematic diagram of the back of a stamping die for producing rolled paper cups, as proposed in this utility model. Figure 3 This is a schematic diagram of the mold base end face of a stamping die for producing rolled paper cups according to this utility model. Figure 4 This is a schematic diagram of the positioning ring section of a stamping die for producing rolled paper cups according to this utility model. Figure 5 This is a schematic diagram of the positioning block of a stamping die for producing rolled paper cups according to this utility model; Figure 6 This is a schematic diagram of the clamping block and clamping groove of a stamping die for producing rolled paper cups according to this utility model.

[0017] Legend: 1. Hydraulic device; 2. Quick-release mold; 3. Ejector device; 4. Cutting blade; 5. Punch head; 6. Mold base; 201. Mold; 202. Pin; 203. Positioning ring; 204. Locking block; 205. Locking groove; 206. Limiting ring; 207. Connecting ring; 301. Air nozzle; 302. Positioning block; 303. Baffle; 304. Slide rod; 305. Movable block. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Reference Figure 1 - Figure 3 The present invention provides an embodiment of a stamping die for producing rolled paper cups, comprising a hydraulic device 1 and a die base 6. A stamping head 5 is fixedly connected to the output shaft of the hydraulic device 1, and a cutting blade 4 is fixedly connected to the outer arc surface of the stamping head 5. A quick-release die 2 is provided on the side of the die base 6 near the hydraulic device 1 to enable quick disassembly and installation of the die 201. An ejector device 3 is provided inside the quick-release die 2 to eject the bottom of the finished rolled paper cup. Reference Figure 2 - Figure 4 The quick-release mold 2 includes a mold 201. A positioning ring 203 is fixedly connected to the rear end of the outer arc surface of the mold 201. A pin 202 is slidably connected to the inner surface of the positioning ring 203. A limit ring 206 is fixedly connected to the outer arc surface of the pin 202. Reference Figure 2 , Figure 6 A locking block 204 is fixedly connected to the back of the mold 201. A locking groove 205 is fitted onto the outer surface of the locking block 204. The back of the locking groove 205 is fixedly connected to the mold base 6.

[0020] The mold base 6 has an arc-shaped groove at one end near the hydraulic device 1 to accommodate the insertion of the mold 201. Multiple sets of cylindrical insertion holes are provided on the side of the mold base 6 near the hydraulic device 1 to accommodate the insertion of the pin 202. The front end of the mold 201 has a groove that matches the punch head 5 and the cutting blade 4. Multiple sets of through holes are provided on the inner surface of the positioning ring 203 to accommodate the sliding of the limiting ring 206 within it. Another set of through holes with a relatively smaller diameter is provided inside the through holes on the inner surface of the positioning ring 203 to accommodate the sliding of the pin 202 within it. The outer arc surface of the limiting ring 206 is slidably connected to the positioning ring 203. The outer surface of the limiting ring 206 is elastically connected to the positioning ring 203 by a spring, thus preventing it from being affected by the mold base. 6. During extrusion, the pin 202 and the limiting ring 206 can be pushed towards the mold base 6 by the spring force. The diameter of the pin 202 is the same as the inner diameter of the insertion hole at the front end of the mold base 6. The diameter of the mold 201 is the same as the inner diameter of the groove inside the mold base 6. The locking block 204 is generally arc-shaped and T-shaped. The locking groove 205 is generally arc-shaped. The locking groove 205 has a groove with the same shape as the locking block 204 inside, so that the locking groove 205 can accommodate the insertion of the locking block 204. There are multiple sets of pins 202, and each set of pins 202 is fixedly connected to a connecting ring 207 on the side near the stamping head 5. Through the connecting ring 207, multiple sets of pins 202 can be pulled at the same time to disengage them from the groove inside the mold base 6.

[0021] Reference Figure 1 , Figure 2 as well as Figure 5 The ejector device 3 includes a positioning block 302, the outer arc surface of which is fixedly connected to the mold 201. A slide rod 304 is slidably connected to the inner surface of the positioning block 302. A baffle 303 is fixedly connected to one end of the slide rod 304, and a movable block 305 is fixedly connected to the other end of the slide rod 304. An air nozzle 301 is threadedly connected to the upper surface of the mold 201. The air nozzle 301 is connected to a solenoid valve and an air tank through an air supply pipeline, and the solenoid valve controls whether the gas passes through. The air supply principle is a commonly used air supply method in the art, so its principle will not be described in detail.

[0022] An exhaust hole is provided at the center of the inner surface of the mold 201, and this exhaust hole is connected to the upper air nozzle 301. Therefore, the gas entering through the air nozzle 301 can be discharged through this exhaust hole. The concave surface of the mold 201 is flush with the outer surface of the baffle 303, thereby preventing dents from appearing at the bottom of the rolled paper cup during the stamping process. A sealing ring is provided on the outer arc surface of the baffle 303 to maintain the sealing of the connection between the baffle 303 and the mold 201. The baffle 303, the positioning block 302, and the movable block 305 have the same diameter, thus ensuring that the baffle 303, positioning block 302, and movable block 305 have the same diameter. Block 302 and movable block 305 can form a seal on the concave surface of the mold. A through hole is opened at the center of the inner surface of the positioning block 302, and a frustum-shaped through hole is opened at the center of the inner surface of the movable block 305. Therefore, under the impact of airflow, the movable block 305 will have a tendency to move towards the positioning block 302, and the impact force is greater than the elastic force of the spring. Therefore, when the air nozzle 301 is inlet, the movable block 305 can drive the baffle 303 to move outward through the slide rod 304. The movable block 305 and the positioning block 302 are elastically connected by a spring.

[0023] Working principle: When using this device, the corresponding mold 201 needs to be selected. At this time, the locking block 204 on the back of the mold 201 can be aligned with the gap of the front groove 205 of the mold base 6. At this time, the pin 202 will be squeezed by the mold base 6 and retract into the positioning ring 203. Then, the mold 201 can be rotated so that the locking block 204 on its back can be inserted into the groove 205. As the locking block 204 is inserted into the groove 205, the pin 202 will also be driven to rotate to the front groove of the mold base 6. Due to the spring force at the limiting ring 206, the pin 202 is pushed into the groove inside the mold base 6 to complete the limiting of the mold 201. When disassembling and maintaining the mold 201, it is only necessary to pull the connecting ring 207 to drive multiple sets of pins 202 away from the mold base 6 and rotate the mold 201 in the opposite direction so that the locking block 204 can be dislodged from the groove 205, and the mold 201 can be taken out. Meanwhile, after the mold 201 is installed, the hydraulic device 1 needs to be activated under the normal feeding state of the feeding device, so that it drives the punch head 5 and the cutting knife 4 to extend. The punch head 5 is used to punch the cardboard into the bottom of the rolled edge paper cup, and the cutting knife 4 cuts off the connection between the cardboard and the bottom of the rolled edge paper cup formed by the punch. At this time, the airflow is controlled by the solenoid valve so that the gas enters the mold 201 through the air nozzle 301. At the same time, due to the gas impact, the movable block 305 is pushed outward. When the movable block 305 moves outward, it will drive the baffle 303 to move outward through the slide rod 304 and push the bottom of the rolled edge paper cup formed by the punch outward. At the same time, the overflowing gas will also pass through the movable block 305 and the positioning block 302, and after the baffle 303 pushes out the bottom of the rolled edge paper cup, the gas rushes out through the center of the mold 201 to assist in the ejection operation of the bottom of the rolled edge paper cup after punching.

[0024] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A stamping die for producing rolled paper cups, comprising a hydraulic device (1) and a die base (6), characterized in that: A punch head (5) is fixedly connected to the output shaft of the hydraulic device (1), and a cutting blade (4) is fixedly connected to the outer arc surface of the punch head (5). A quick-release mold (2) is provided on the side of the mold base (6) near the hydraulic device (1) to realize the quick disassembly and installation of the mold (201). An ejector device (3) is provided inside the quick-release mold (2) to eject the bottom of the processed rolled paper cup. The quick-release mold (2) includes a mold (201). A positioning ring (203) is fixedly connected to the rear end of the outer arc surface of the mold (201). A pin (202) is slidably connected to the inner surface of the positioning ring (203). A limit ring (206) is fixedly connected to the outer arc surface of the pin (202). A locking block (204) is fixedly connected to the back of the mold (201). A locking groove (205) is sleeved on the outer surface of the locking block (204). The back of the locking groove (205) is fixedly connected to the mold base (6).

2. The stamping die for producing rolled-edge paper cups according to claim 1, characterized in that: The ejector device (3) includes a positioning block (302), the outer arc surface of the positioning block (302) is fixedly connected to the mold (201), the inner surface of the positioning block (302) is slidably connected to a slide rod (304), one end of the slide rod (304) is fixedly connected to a baffle (303), the other end of the slide rod (304) is fixedly connected to a movable block (305), and the upper surface of the mold (201) is threadedly connected to an air nozzle (301).

3. The stamping die for producing rolled-edge paper cups according to claim 1, characterized in that: The mold base (6) has an arc-shaped groove at one end near the hydraulic device (1), and the mold base (6) has multiple sets of cylindrical insertion holes on the side near the hydraulic device (1).

4. The stamping die for producing rolled-edge paper cups according to claim 1, characterized in that: The mold (201) has a groove at the front end that matches the stamping head (5) and the cutting blade (4). The inner surface of the positioning ring (203) has multiple sets of through holes. The inner surface of the positioning ring (203) has another set of through holes with a relatively small diameter. The outer arc surface of the limiting ring (206) is slidably connected to the positioning ring (203).

5. The stamping die for producing rolled-edge paper cups according to claim 1, characterized in that: The outer surface of the limiting ring (206) is elastically connected to the positioning ring (203) by a spring. The diameter of the pin (202) is the same as the inner diameter of the front end insertion hole of the mold base (6). The diameter of the mold (201) is the same as the inner diameter of the groove inside the mold base (6). The overall shape of the locking block (204) is arc-shaped. The overall shape of the locking block (204) is T-shaped. The overall shape of the locking groove (205) is arc-shaped. The groove (205) has a groove with the same shape as the locking block (204) inside. There are multiple sets of pins (202), and each set of pins (202) is fixedly connected to a connecting ring (207) on the side near the stamping head (5).

6. A stamping die for producing rolled-edge paper cups according to claim 2, characterized in that: The mold (201) has an exhaust hole at the center of its inner surface, and the exhaust hole is connected to the upper air nozzle (301).

7. A stamping die for producing rolled-edge paper cups according to claim 2, characterized in that: The concave surface of the mold (201) is flush with the outer surface of the baffle (303), and a sealing ring is provided on the outer arc surface of the baffle (303). The baffle (303), the positioning block (302), and the movable block (305) have the same diameter.

8. A stamping die for producing rolled-edge paper cups according to claim 2, characterized in that: The positioning block (302) has a through hole at the center of its inner surface, and the movable block (305) has a frustum-shaped through hole at the center of its inner surface. The movable block (305) and the positioning block (302) are elastically connected by a spring.

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