Mold for plastic lampshade

Abstract

The utility model relates to the technical field of molds, in particular to a mold for a plastic lampshade, which comprises a base, a support frame and a lower mold, two ends of the lower mold are fixedly connected with the support frame, the surface of the support frame is fixedly connected with a hydraulic rod, and the output end of the hydraulic rod is fixedly connected with an upper mold. A male die is fixedly connected to the middle of the lower surface of the upper die, a die cavity is formed in the middle of the upper surface of the lower die, communicating grooves are symmetrically formed in the two sides of the lower die, a sleeve is fixedly connected to the surface of the base, an ejector rod is slidably connected to the interior of the sleeve, and an ejector plate is fixedly connected to the end, inserted into the die cavity, of the ejector rod. And a spring is fixedly connected to the surface of the bottom of the ejector rod, and the other end of the spring is fixed to the surface of the base, so that automatic and rapid demolding of a product is achieved, manual demolding of the product by an operator is not needed, meanwhile, the operator can conveniently collect the product, and time is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a mold for a plastic lampshade. Background Art

[0002] Molds refer to various molds and tools used in industrial production to obtain the desired products by injection molding, blow molding, extrusion, die casting or forging, smelting, stamping and other methods. In the production process of plastic lampshades, molds are also one of the indispensable tools. Publication number: CN216683109 discloses a universal lampshade processing mold, including a lower mold assembly, a limit seat and a bottom plate. The bottom of the lower mold assembly is installed with a bottom plate, and the two sides of the top of the bottom plate are installed with limit seats, and the limit seats are connected to the two sides of the lower mold assembly. The top of the lower mold assembly is plugged with an upper mold assembly, and the top of the lower mold assembly is clamped with a limit mold. The top of the limit mold is threaded through and connected with limit bolts, and the bottom of the limit bolt is threadedly connected to the top of the lower mold assembly. The utility model is provided with an upper mold assembly, a lower mold assembly, a connecting mold, a positioning plate and a limiting mold. When the device is in use, the limiting mold and the connecting mold inside the device are easy to disassemble, and the mold can be easily replaced according to the use requirements of the device, thereby maintaining the high efficiency and applicability of the device positioning, expanding the processing range of the device, and improving the practicality of the device positioning. However, during the use of the above technology, it is impossible to quickly and automatically demould the product to facilitate the operator to collect the product. The operator needs to demould and take out the product manually or with the help of tools, which causes inconvenience in work and reduces production efficiency. Utility Model Content

[0003] The purpose of the utility model is to solve the technical problems raised in the above background technology.

[0004] The utility model adopts the following technical scheme: a mold for a plastic lampshade, comprising a base, a support frame and a lower mold, wherein both ends of the lower mold are fixedly connected to the support frame, a hydraulic rod is fixedly connected to the surface of the support frame, an output end of the hydraulic rod is fixedly connected to the upper mold, a punch is fixedly connected to the middle of the lower surface of the upper mold, a mold cavity is provided in the middle of the upper surface of the lower mold, connecting grooves are symmetrically provided on both sides of the lower mold, a sleeve is fixedly connected to the surface of the base, a push rod is slidably connected to the inside of the sleeve, one end of the push rod inserted into the mold cavity is fixedly connected to a top plate, the top plate is slidably connected to the mold cavity, a spring is fixedly connected to the bottom surface of the push rod, and the other end of the spring is fixedly connected to the surface of the base.

[0005] Preferably, a slot is symmetrically provided in the middle of the surface of the lower mold, a support rod is fixedly connected to the surface of the ejector rod, and push rods are fixedly connected to both ends of the support rod, and the push rods are slidably connected to the slot. Here, by squeezing the push rods by the upper mold, the ejector plate can be automatically moved to the bottom of the mold cavity, which is convenient for shaping the product.

[0006] Preferably, the surface fixing sleeve of the push rod is provided with a buffer pad, and the material of the buffer pad is natural rubber. Here, the buffer pad can be used to reduce the force of the spring on the product during demoulding, so as to avoid the product from being bumped due to the large elastic force.

[0007] Preferably, the surface of the upper mold is fixedly connected with a limit rod, and the surface of the lower mold is provided with a limit hole. Here, the limit rod and the limit hole can cooperate to make the connection between the upper mold and the lower mold more stable during the molding process.

[0008] Preferably, the limiting rods are symmetrically distributed in the middle of the surface of the upper mold, the limiting holes are located directly below the limiting rods, and the number of limiting holes is the same as the number of limiting rods. Here, the punch can be limited in front, back, left, and right directions by the cooperation of the limiting rods and the limiting holes, which can ensure that the thickness of the product is uniform when it is shaped in the mold cavity, thereby improving the product quality.

[0009] Preferably, a cooling cavity is provided in the middle of the lower mold, the cooling cavity is located outside the mold cavity, and the connecting groove is connected to the cooling cavity. Here, the coolant injected into the cooling cavity can be stored, which is convenient for cooling the product and shortening the demoulding time.

[0010] Preferably, a water tank is fixedly connected to the surface of the base, a support plate is fixedly connected to the surface of the water tank, a water pump is fixedly connected to the surface of the support plate, a connecting pipe is fixedly connected to the surface of the water tank, the other end of the connecting pipe is fixedly connected to the surface of the water pump, a water inlet pipe is fixedly connected to the surface of the water pump, one end of the water inlet pipe is fixedly connected to the connecting groove, a water outlet pipe is fixedly connected to the surface of the water tank, and one end of the water outlet pipe is fixedly connected to the connecting groove. Here, the coolant can be quickly injected into the interior of the cooling chamber by the water pump, and at the same time, with the cooperation of the water inlet pipe and the water outlet pipe, the coolant in the water tank can be recycled to avoid waste of resources.

[0011] Compared with the prior art, the advantages and positive effects of the utility model are:

[0012] 1. In the utility model, by the cooperation of the sleeve, spring, push rod and top plate arranged on the surface of the base, when the upper mold is separated from the lower mold after the product is successfully shaped, the push rod and the top plate are pushed upward under the elastic force of the spring, thereby realizing automatic and rapid demoulding of the product, without the need for operators to manually demould the product, and at the same time, it is convenient for operators to collect the products and save time. By setting a buffer pad on the surface of the push rod, the elastic force of the spring on the product can be slowed down, avoiding the product from being quickly ejected and bumped due to excessive elastic force, thereby improving the product qualification rate.

[0013] 2. In the utility model, by setting up a cooling chamber, the cooling liquid in the cooling chamber can be used to achieve cooling treatment during the product shaping process, shortening the demolding time, and by setting up a water tank, connecting a water pump, a water inlet pipe, a connecting groove and a water outlet pipe, a closed loop can be formed between the cooling chamber and the water tank, so that the coolant in the cooling chamber is always in a flowing state, and the coolant in the water tank can be recycled all the time, saving resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic diagram of a mold for a plastic lampshade is provided for the utility model;

[0015] Figure 2 A bottom view of a mold for a plastic lampshade is provided for the utility model;

[0016] Figure 3 A schematic diagram of a mold for a plastic lampshade is provided for the utility model;

[0017] Figure 4 A cross-sectional view of a mold for a plastic lampshade is provided for the utility model;

[0018] Figure 5 The utility model proposes a plastic lampshade mold Figure 4 Enlarged view of point A in the middle;

[0019] Figure 6 A cross-sectional view of a mold sleeve for a plastic lampshade is provided for the utility model;

[0020] Legend:

[0021] 1. Base; 2. Support frame; 3. Lower mold; 4. Upper mold; 5. Water tank; 6. Mold cavity; 7. Water pump; 8. Support plate; 9. Water inlet pipe; 10. Punch; 11. Water outlet pipe; 12. Hydraulic rod; 13. Limit rod; 14. Connecting groove; 15. Sleeve; 16. Limit hole; 17. Connecting pipe; 18. Slot; 19. Push rod; 20. Cooling chamber; 21. Push rod; 22. Spring; 23. Top plate; 24. Buffer pad; 25. Support rod. DETAILED DESCRIPTION

[0022] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0023] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0024] Embodiment 1

[0025] See also Figure 1-5 The utility model provides a technical solution: a mold for a plastic lampshade, comprising a base 1, a support frame 2 and a lower mold 3, both ends of the lower mold 3 are fixedly connected to the support frame 2, a hydraulic rod 12 is fixedly connected to the surface of the support frame 2, an upper mold 4 is fixedly connected to the output end of the hydraulic rod 12, a punch 10 is fixedly connected to the middle of the lower surface of the upper mold 4, a mold cavity 6 is opened in the middle of the upper surface of the lower mold 3, connecting grooves 14 are symmetrically opened on both sides of the lower mold 3, a sleeve 15 is fixedly connected to the surface of the base 1, a push rod 21 is slidably connected inside the sleeve 15, one end of the push rod 21 inserted into the mold cavity 6 is fixedly connected to a top plate 23, the top plate 23 is slidably connected to the mold cavity 6, a spring 22 is fixedly connected to the bottom surface of the push rod 21, and the other end of the spring 22 is fixed to the surface of the base 1, a slot 18 is symmetrically opened in the middle of the surface of the lower mold 3, a support rod 25 is fixedly connected to the surface of the push rod 21, and push rods 19 are fixedly connected to both ends of the support rod 25, and the push rod 19 slides with the slot 18 The push rod 19 is squeezed by the upper mold 4, so that the top plate 23 can be automatically moved to the bottom of the mold cavity 6, which is convenient for shaping the product. The surface of the push rod 19 is fixedly sleeved with a buffer pad 24, and the material of the buffer pad 24 is natural rubber. The buffer pad 24 can be used to reduce the force of the spring 22 on the product during demoulding to avoid the product from being bumped due to the large elastic force. The surface of the upper mold 4 is fixedly connected to the limit rod 13, and the surface of the lower mold 3 is provided with a limit hole 16. Here, the limit rod 13 and the limit hole 16 can be used to cooperate to make the connection between the upper mold 4 and the lower mold 3 more stable during the molding process. The limit rods 13 are symmetrically distributed in the middle of the surface of the upper mold 4, and the limit holes 16 are located directly below the limit rods 13, and the number of the limit holes 16 is the same as the number of the limit rods 13. Here, the punch 10 can be limited front, back, left, and right by the cooperation of the limit rods 13 and the limit holes 16, which can ensure that the thickness of the product is uniform when it is shaped in the mold cavity 6, thereby improving the product quality.

[0026] Embodiment 2

[0027] See also Figure 1-5A cooling chamber 20 is provided in the middle of the lower mold 3, and the cooling chamber 20 is located at the periphery of the mold cavity 6. The connecting groove 14 is connected to the cooling chamber 20, and the coolant injected into the cooling chamber 20 can be stored here, which is convenient for cooling the product and shortening the demoulding time. A water tank 5 is fixedly connected to the surface of the base 1, and a support plate 8 is fixedly connected to the surface of the water tank 5. A water pump 7 is fixedly connected to the surface of the support plate 8. A connecting pipe 17 is fixedly connected to the surface of the water tank 5, and the other end of the connecting pipe 17 is fixedly connected to the surface of the water pump 7. A water inlet pipe 9 is fixedly connected to the surface of the water pump 7, and one end of the water inlet pipe 9 is fixedly connected to the connecting groove 14. A water outlet pipe 11 is fixedly connected to the surface of the water tank 5, and one end of the water outlet pipe 11 is fixedly connected to the connecting groove 14. The coolant can be quickly injected into the interior of the cooling chamber 20 by the water pump 7. At the same time, with the cooperation of the water inlet pipe 9 and the water outlet pipe 11, the coolant in the water tank 5 is recycled to avoid waste of resources.

[0028] Working principle: During use, the raw materials of the product are first injected into the cavity 6 opened on the surface of the lower mold 3, and then the hydraulic rod 12 is started. The upper mold 4 approaches the lower mold 3 under the action of the hydraulic rod 12. In the process of approaching the lower mold 3, the upper mold 4 squeezes the push rod 19, and the push rod 19 drives the push rod 21 to slide into the inside of the sleeve 15 and squeezes the spring 22. In the process of sliding inside the sleeve 15, the push rod 19 drives the top plate 23 to slide to the bottom of the cavity 6. In this process, the limit rod 13 is slowly inserted into the inside of the limit hole 16, and the punch 10 is also inserted into the inside of the cavity 6. The raw materials of the product are shaped under the action of the punch 10 and the cavity 6. When the product shaping is completed and the upper mold 4 is separated from the lower mold 3, the push rod 21 pushes the top plate 23 upward under the elastic force of the spring 22 and demolds the product from the inner surface of the cavity 6. When the support rod 25 reaches the surface of the lower mold 3, the top plate 23 stops moving. The cushion pad 24 moves, and at the same time, the buffer pad 24 reaches the top of the sleeve 15, so that the product can be quickly demoulded. There is no need for the operator to manually demould the product. It is also convenient for the operator to collect the product, saving time. The cushion pad 24 arranged on the surface of the push rod 19 can slow down the elastic force of the spring 22 on the product, so as to avoid the product being quickly ejected and bumped due to excessive elastic force, thereby improving the product qualification rate. When the coolant is used to cool the product during the shaping process, the coolant in the water tank 5 is drawn into the water pump 7 along the connecting pipe 17. Under the action of the water pump 7, the coolant enters the cooling chamber 20 along the water inlet pipe 9. When the cooling chamber 20 is filled with the coolant, the coolant will flow back from the water outlet pipe 11 to the inside of the water tank 5, so that a closed loop can be formed between the cooling chamber 20 and the water tank 5, so that the coolant in the cooling chamber 20 is always in a flowing state, and the coolant in the water tank 5 can be recycled all the time, saving resources.

[0029] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A mold for a plastic lampshade, comprising a base (1), a support frame (2) and a lower mold (3), characterized in that: The surface of the base (1) is fixedly connected to a support frame (2), the inner surface of the support frame (2) is fixedly connected to a lower mold (3), both ends of the lower mold (3) are fixedly connected to the support frame (2), the surface of the support frame (2) is fixedly connected to a hydraulic rod (12), the output end of the hydraulic rod (12) is fixedly connected to an upper mold (4), the middle part of the lower surface of the upper mold is fixedly connected to a punch (10), and the middle part of the upper surface of the lower mold (3) is provided with a mold cavity (6). The lower mold (3) is symmetrically provided with connecting grooves (14), the surface of the base (1) is fixedly connected with a sleeve (15), the interior of the sleeve (15) is slidably connected with a push rod (21), one end of the push rod (21) inserted into the mold cavity (6) is fixedly connected with a top plate (23), the top plate (23) is slidably connected to the mold cavity (6), the bottom surface of the push rod (21) is fixedly connected with a spring (22), the other end of the spring (22) is fixed to the surface of the base (1).

2. The mold for a plastic lampshade according to claim 1, characterized in that: A slot (18) is symmetrically provided in the middle of the surface of the lower mold (3); a support rod (25) is fixedly connected to the surface of the push rod (21); push rods (19) are fixedly connected to both ends of the support rod (25); and the push rods (19) are slidably connected to the slot (18).

3. The mold for a plastic lampshade according to claim 2, characterized in that: The surface fixing sleeve of the push rod (19) is provided with a buffer pad (24), and the material of the buffer pad (24) is natural rubber material.

4. The mold for a plastic lampshade according to claim 1, characterized in that: A limiting rod (13) is fixedly connected to the surface of the upper mold (4), and a limiting hole (16) is provided on the surface of the lower mold (3).

5. The mold for a plastic lampshade according to claim 4, characterized in that: The limiting rods (13) are symmetrically distributed in the middle of the surface of the upper mold (4), the limiting holes (16) are located directly below the limiting rods (13), and the number of the limiting holes (16) is the same as the number of the limiting rods (13).

6. The mold for a plastic lampshade according to claim 1, characterized in that: A cooling cavity (20) is provided in the middle of the lower mold (3), the cooling cavity (20) is located outside the mold cavity (6), and the connecting groove (14) is connected to the cooling cavity (20).

7. The mold for a plastic lampshade according to claim 1, characterized in that: A water tank (5) is fixedly connected to the surface of the base (1), a support plate (8) is fixedly connected to the surface of the water tank (5), a water pump (7) is fixedly connected to the surface of the support plate (8), a connecting pipe (17) is fixedly connected to the surface of the water tank (5), the other end of the connecting pipe (17) is fixedly connected to the surface of the water pump (7), a water inlet pipe (9) is fixedly connected to the surface of the water pump (7), one end of the water inlet pipe (9) is fixedly connected to the connecting groove (14), and a water outlet pipe (11) is fixedly connected to the surface of the water tank (5), one end of the water outlet pipe (11) is fixedly connected to the connecting groove (14).

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