Water expansion mold for vacuum cup production

Abstract

The utility model discloses a water expansion mould for vacuum cup production, which comprises an upper mould, a lower mould and an air blowing device, the upper mould is matched and connected with the lower mould, the bottom of the lower mould is provided with a water inlet, a water inlet channel is arranged along the center direction of the upper mould and the lower mould, the water inlet is communicated with the water inlet channel, and the air blowing device is arranged on the lower mould. A water swelling space is arranged on the outer side of the water inlet channel, the water inlet channel is communicated with the water swelling space, the air blowing device is installed on the upper die, and the air blowing device is communicated with the water swelling space and used for blowing air into the water swelling space after water swelling is finished. The one-way valve capable of blowing air is additionally arranged on the water expansion mold, when the water expansion mold is opened, the air blowing valve blows air to blow out liquid existing between the water expansion mold and the water expansion pipe, the similar semi-vacuum state in the upper mold is damaged, and the lower mold and the water expansion pipe are still kept in the semi-vacuum state and have adsorbability; therefore, the water expansion pipe is separated from the upper die and kept in the lower die, and the manipulator can smoothly align and take the water expansion pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of thermos cup production equipment, in particular to a water swelling mould for thermos cup production. Background Art

[0002] In the process of manufacturing metal water cups, the cup body needs to be formed. The main process is to first put the round tube into a forming mold, which will seal and press the two ends of the round tube, and then inject water from the inside of the round tube to deform the round tube from the inside out and fit tightly against the mold cavity.

[0003] Chinese patent CN214053293U discloses a water swelling mold for a thermos cup, which belongs to the technical field of forming equipment. It solves the problems that the existing water swelling forming molds seal the product by squeezing tendons, which is easy to produce tendon debris, affecting the appearance quality of the water cup, and the sealing is unstable. The utility model includes an upper mold assembly, a lower mold assembly, an upper core rod and a lower core rod symmetrically arranged up and down, an upper sealing device for sealing the upper end opening of the workpiece is provided between the upper mold assembly and the upper core rod, and a lower sealing device for sealing the lower end opening of the workpiece is provided between the lower mold assembly and the lower core rod. The upper sealing device includes an upper clamp and an upper pull head, and the lower sealing device includes a lower clamp and a lower pull head.

[0004] In the automatic production line of thermos cups, the use of the above-mentioned water expansion mold will have the following problems: after the water expansion mold is opened, the water expansion tube is taken by a general manipulator. After the water expansion of the conventional water expansion mold is completed, due to the small gap between the water expansion tube and the mold and the inability to discharge the gas inside the liquid, a semi-vacuum state is sometimes formed, resulting in the water expansion tube and the upper mold not being separated or being adhered for a short time and then separated. Both of these situations will make it impossible to position the water expansion tube in the same position, resulting in the robot taking the water expansion tube to err and stop production. In addition, it is impossible to predict whether these two situations will occur, resulting in the inability to correct them by adjusting the robot program. Utility Model Content

[0005] The utility model aims to provide a water expansion mold for producing a thermos cup, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a water swelling mold for producing a thermos cup, comprising an upper mold, a lower mold and a blowing device, the upper mold is cooperatively connected with the lower mold, a water inlet is provided at the bottom of the lower mold, a water inlet channel is arranged along the center direction of the upper mold and the lower mold, the water inlet is connected with the water inlet channel, a water swelling space is arranged outside the water inlet channel, the water inlet channel is connected with the water swelling space, the blowing device is installed on the upper mold, and the blowing device is connected with the water swelling space for blowing air into the water swelling space after the water swelling is completed.

[0007] Preferably, an air inlet is provided at the upper portion of the upper mold, and the air inlet is connected to the water swelling space through an air inlet channel and an air inlet gap.

[0008] Preferably, the blowing device includes an air intake pipe connected to the blower, a blowing valve port installed at the air intake, a spring and a steel ball arranged in the air intake channel, the air intake pipe is connected to the air intake channel through the blowing valve port, and the steel ball is pressed against the inner end of the blowing valve port through the spring.

[0009] Preferably, two blowing devices are provided and symmetrically installed on both sides of the upper mold.

[0010] Preferably, a gripper for lifting the upper mold is provided on the top of the upper mold.

[0011] Preferably, the upper mold includes an upper base plate, an upper mold head, an upper cavity, an upper core rod and an upper core seat, the upper mold head is located between the upper base plate and the upper cavity, the upper mold head, the upper base plate and the upper cavity are fixed by screws, the upper core seat is located in the upper mold head, the upper core rod is located in the upper cavity and the upper core rod is connected to the bottom of the upper core seat.

[0012] Preferably, the lower mold includes a lower base plate, a lower die head, a lower cavity, a lower core rod and a lower core seat, the lower die head is located between the lower base plate and the lower cavity, the lower die head, the lower base plate and the lower cavity are fixed by screws, the lower core seat is located in the lower die head, the lower core rod is located in the lower cavity and the lower core rod is connected to the top of the lower core seat; the top of the lower core rod is connected to the bottom of the upper core rod, and the top of the lower cavity is connected to the bottom of the upper cavity.

[0013] Preferably, the upper core rod and the lower core rod are internally connected to form a water inlet channel, and the space between the upper core rod and the upper cavity and the space between the lower core rod and the lower cavity are combined to form a water swelling space.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model adds a one-way valve for blowing on the water expansion mold. When the water expansion mold is opened, the blowing valve blows out the liquid between the water expansion mold and the water expansion tube, destroying the semi-vacuum state in the upper mold. The lower mold still maintains the semi-vacuum state with the water expansion tube and has adsorption, so that the water expansion tube is separated from the upper mold and kept in the lower mold, and the robot can smoothly align and take the water expansion tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural sectional view of the utility model;

[0017] Figure 2 It is a structural stereogram of the utility model;

[0018] Figure 3 for Figure 1 A magnified view of middle;

[0019] In the figure: 1. upper mold; 2. lower mold; 3. blowing device; 4. water inlet channel; 5. water rising space; 6. gripper; 11. upper base plate; 12. upper die head; 13. upper cavity; 14. upper core rod; 15. upper core seat; 16. air inlet; 17. air inlet channel; 18. air inlet gap; 21. lower base plate; 22. lower die head; 23. lower cavity; 24. lower core rod; 25. lower core seat; 26. water inlet; 31. air inlet pipe; 32. air blowing valve port; 33. spring; 34. steel ball. DETAILED DESCRIPTION

[0020] 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.

[0021] See also Figures 1 to 3 As shown, the present embodiment relates to a water swelling mold for producing a thermos cup, which comprises an upper mold 1, a lower mold 2 and a blowing device 3, wherein the upper mold 1 is cooperatively connected with the lower mold 2, wherein the upper mold 1 comprises an upper base plate 11, an upper die head 12, an upper cavity 13, an upper core rod 14 and an upper core seat 15, the upper die head 12 is located between the upper base plate 11 and the upper cavity 13, the upper die head 12, the upper base plate 11 and the upper cavity 13 are fixed by screws, the upper core seat 15 is located in the upper die head 12, the upper core rod 14 is located in the upper cavity 13 and the upper core rod 14 is connected to the bottom of the upper core seat 15. The lower mold 2 includes a lower bottom plate 21, a lower die head 22, a lower mold cavity 23, a lower core rod 24 and a lower core seat 25. The lower die head 22 is located between the lower bottom plate 21 and the lower mold cavity 23. The lower die head 22, the lower bottom plate 21 and the lower mold cavity 23 are fixed by screws. The lower core seat 25 is located in the lower die head 22. The lower core rod 24 is located in the lower mold cavity 23 and the lower core rod 24 is connected to the upper core seat 25. The upper part of the lower core rod 24 is connected to the lower part of the upper core rod 14, and the upper part of the lower mold cavity 23 is connected to the lower part of the upper mold cavity 13. The upper core rod 14 and the lower core rod 24 are connected to form a water inlet channel 4. The space between the upper core rod 14 and the upper mold cavity 13 and the space between the lower core rod 24 and the lower mold cavity 23 are combined to form a water expansion space 5. During processing, the water expansion tube is sleeved on the upper core rod 14 and the lower core rod 24.

[0022] The bottom of the lower mold 2 is provided with a water inlet 26, which is connected to the water inlet channel 4, and the water inlet channel 4 is connected to the water swelling space 5. In this embodiment, water enters the water swelling space 5 through the gap between the upper core rod 14 and the lower core rod 24, the gap between the lower core rod 24 and the lower core seat 25, and the gap between the upper core rod 14 and the upper core seat 15. The blowing device 3 is installed on the upper die head 12 of the upper mold 1, and the blowing device 3 is connected to the water swelling space 5 for blowing air into the water swelling space 5 after the water swelling is completed, so that the water swelling tube is quickly separated from the upper cavity 13.

[0023] In the embodiment of the present application, an air inlet 16 is provided on the upper die head 12 of the upper mold 1, and an air inlet channel 17 is also provided in the upper die head 12. An air inlet gap 18 is provided between the upper die head 12 and the upper core seat 15, and between the upper core seat 15 and the upper core rod 14. The air inlet 16 is connected to the water swelling space 5 through the air inlet channel 17 and the air inlet gap 18. Two of the blowing devices 3 are provided, symmetrically installed on both sides of the upper die head 12, and the blowing devices 3 include an air inlet pipe 31 connected to the blower, a blowing valve port 32 threadedly installed at the air inlet 16, a spring 33 and a steel ball 34 provided in the air inlet channel 17, the air inlet pipe 31 is connected to the air inlet channel 17 through the blowing valve port 32, and the steel ball 34 is pressed against the inner end of the blowing valve port 32 through the spring 33.

[0024] In addition, in order to facilitate the separation of the upper mold 1 and the lower mold 2 after the water swelling is completed, a gripper 6 is installed on the upper bottom plate 11 of the upper mold 1.

[0025] The working principle of the utility model is:

[0026] When the water swelling work is not performed, the spring 33 blocks the steel ball 34 at the air outlet end of the blowing valve port 32. During the water swelling process, when the upper mold 1 and the lower mold 2 are not separated, the water swelling liquid fills the air inlet channel 17 where the spring 33 is located. However, since the gap between the air inlet channel 17 and the steel ball 34 is very small, the external spring 33 is already in a slightly compressed state to press the steel ball 34, so the steel ball 34 will not move around, and the steel ball 34 will be firmly pressed on the air outlet end of the blowing valve port 32 to ensure that the water swelling liquid will not enter the blowing valve port 32 and the air inlet pipe 31; when the water swelling is completed and the upper mold 1 and the lower mold 2 are about to be separated, gas reaches the air inlet 16 through the air inlet pipe 31, pushing the steel ball 34, and when the upper mold 1 and the lower mold 2 are slightly separated and there is space for the water swelling liquid to flow out, the gas pushes the steel ball 34 away, enters the water swelling space 5 through the air inlet channel 17 and the air inlet gap 18, blows off the liquid in the upper mold 1, and separates the water swelling pipe from the upper mold 1.

[0027] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A water expansion mold for producing a thermos cup, characterized in that: It includes an upper mold, a lower mold and a blowing device. The upper mold is connected with the lower mold. A water inlet is provided at the bottom of the lower mold. A water inlet channel is provided along the center direction of the upper mold and the lower mold. The water inlet is connected with the water inlet channel. A water swelling space is provided outside the water inlet channel. The water inlet channel is connected with the water swelling space. The blowing device is installed on the upper mold. The blowing device is connected with the water swelling space and is used to blow air into the water swelling space after the water swelling is completed.

2. The water swelling mold for producing a thermos cup according to claim 1, characterized in that: An air inlet is arranged on the upper part of the upper mold, and the air inlet is communicated with the water swelling space through an air inlet channel and an air inlet gap.

3. The water swelling mold for producing a thermos cup according to claim 2, characterized in that: The blowing device includes an air intake pipe connected to the blower, a blowing valve port installed at the air intake, a spring and a steel ball arranged in the air intake channel, the air intake pipe is connected to the air intake channel through the blowing valve port, and the steel ball is pressed against the inner end of the blowing valve port through the spring.

4. The water swelling mold for producing a thermos cup according to claim 1, characterized in that: Two blowing devices are provided and symmetrically installed on both sides of the upper mold.

5. The water swelling mold for producing a thermos cup according to claim 1, characterized in that: A gripper for lifting the upper mold is provided on the top of the upper mold.

6. The water swelling mold for producing a thermos cup according to claim 1, characterized in that: The upper mold includes an upper base plate, an upper mold head, an upper cavity, an upper core rod and an upper core seat. The upper mold head is located between the upper base plate and the upper cavity. The upper mold head, the upper base plate and the upper cavity are fixed by screws. The upper core seat is located in the upper mold head, the upper core rod is located in the upper cavity and the upper core rod is connected to the bottom of the upper core seat.

7. The water swelling mold for producing a thermos cup according to claim 6, characterized in that: The lower mold includes a lower base plate, a lower die head, a lower cavity, a lower core rod and a lower core seat. The lower die head is located between the lower base plate and the lower cavity. The lower die head, the lower base plate and the lower cavity are fixed by screws. The lower core seat is located in the lower die head, the lower core rod is located in the lower cavity and the lower core rod is connected to the top of the lower core seat; the top of the lower core rod is connected to the bottom of the upper core rod, and the top of the lower cavity is connected to the bottom of the upper cavity.

8. The water swelling mold for producing a thermos cup according to claim 7, characterized in that: The upper core rod and the lower core rod are internally connected to form a water inlet channel, and the space between the upper core rod and the upper cavity and the space between the lower core rod and the lower cavity are combined to form a water swelling space.

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