Integrated injection molding mold for high-strength luggage

Abstract

The utility model relates to the technical field of bags and suitcases, in particular to a high-strength integral injection molding mold for bags and suitcases, which comprises a bottom plate and further comprises a lower mold arranged on the bottom plate, an injection molding mechanism is arranged between the bottom plate and the lower mold, and the injection molding mechanism comprises a heat pipe component for injecting melt and a cut-off component for sealing an injection molding opening. After the injection molding device stops injection molding and the temperature in the injection molding pipe is reduced, the heating element heats the injection molding pipe, so that residual plastic melt in the injection molding pipe is kept in a liquid state, then the hydraulic device inputs hydraulic oil into the circular pipe, and the hydraulic device continuously increases pressure and extrudes the hydraulic oil, so that the pressure in the circular pipe is increased; and the piston is forced to coaxially slide towards the cylinder body, and the threaded groove in the outer wall is meshed with the interior of the round pipe in the moving process of the lead screw, so that the valve ball is driven to rotate, the injection molding pipe is sealed, and the phenomenon that liquid plastic melt is solidified on the surface of a product, and consequently an obvious water gap is formed is avoided.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of luggage, in particular to a high-strength integrated injection molding mold for luggage. BACKGROUND

[0002] Injection molding, also known as injection molding, is a molding method combining injection and molding. The injection molding method has the advantages of high production speed, high efficiency, automatic operation, various colors and shapes, accurate product size, easy product updating, and the ability to form complex parts. Injection molding is suitable for mass production and complex product molding processing fields.

[0003] In the prior art, after injection molding is completed, the mold circulates and flows cooling water, so that the mold is cooled and the product in the mold is quickly cooled and shaped, and at the same time, the residual material in the injection port is solidified. Therefore, when the product is taken out, obvious water ports will be left on the surface of the product, affecting the surface quality of the product. In order to solve the above problems, the utility model provides a high-strength integrated injection molding mold for luggage. Utility model content

[0004] The application embodiment provides a high-strength integrated injection molding mold for luggage, which can improve the technical problem that in the related art, after the injection molding device stops injection molding, some plastic melt will be left in the injection pipe, the plastic melt will be solidified on the inner wall of the injection pipe, and the injection pipe will be blocked for a long time, affecting the next injection molding.

[0005] The application embodiment provides a high-strength integrated injection molding mold for luggage, which can improve the technical problem that in the related art, after the injection molding device stops injection molding, some plastic melt will be left in the injection pipe, the plastic melt will be solidified on the inner wall of the injection pipe, and the injection pipe will be blocked for a long time, affecting the next injection molding.

[0006] After the quantitative injection of the injection device is completed, the injection device stops injection, the plastic melt stops conveying inside the mold cavity, the temperature inside the injection tube decreases, the heating element heats the injection tube, the residual plastic melt inside the injection tube is kept in liquid state, the hydraulic device inputs hydraulic oil into the circular tube, the hydraulic device continuously increases the pressure to extrude the hydraulic oil, the pressure inside the hydraulic oil increases, the piston is forced to slide coaxially with the cylinder, the piston drives the lead screw to move inside the circular tube, the threads on the outer wall of the lead screw engage the inside of the circular tube, thereby rotating the valve ball to close the injection tube, avoiding the liquid plastic melt solidifying on the surface of the product, resulting in obvious water marks.

[0007] Optionally, the heating element is spirally wound on the outer wall of the injection tube, and the outer wall of the injection tube is further provided with a temperature sensor.

[0008] Optionally, the injection tube is sleeved with a heat insulation sleeve, and the heating element and the temperature sensor are sleeved in the heat insulation sleeve.

[0009] Optionally, the end of the piston away from the lead screw is provided with a prism, and the lead screw, the piston and the prism are coaxially arranged, and the prism is inserted into the cylinder wall of the cylinder.

[0010] Optionally, the end of the piston away from the lead screw is provided with a prism, and the lead screw, the piston and the prism are coaxially arranged, and the prism is inserted into the cylinder wall of the cylinder.

[0011] Optionally, the injection tube is provided with an injection flow channel along the axial direction thereof, and the outer wall of the valve ball is sealingly and rotatably sleeved with the inner wall of the injection flow channel.

[0012] Optionally, a spherical groove is concentrically formed in the valve ball, and a gap is formed between the outer wall of the circular tube and the inner wall of the spherical groove.

[0013] Optionally, the diameter of the piston is greater than the diameter of the lead screw.

[0014] Optionally, the end of the injection tube away from the lower mold is fixedly connected with a flange, and the injection tube is connected with the bottom plate through the flange.

[0015] Optionally, the top end of the lower mold is assembled with an upper mold. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The overall structure schematic diagram of the air conditioning system provided by the embodiment of the application is provided;

[0017] Figure 2 The lower mold structure schematic diagram of the air conditioning system provided by the embodiment of the application is provided;

[0018] Figure 3 The injection mechanism structure schematic diagram of the air conditioning system provided by the embodiment of the application is provided;

[0019] Figure 4 The air conditioning system provided by the embodiment of the present application has the advantages of Figure 3 The structural schematic diagram of the A place of the air conditioning system provided by the embodiment of the present application;

[0020] Figure 5 The injection pipe sectional structure schematic diagram of the air conditioning system provided by the embodiment of the present application;

[0021] In the drawings, various reference signs are:

[0022] 1, bottom plate; 2, lower mold; 3, upper mold;

[0023] 4, injection mechanism; 401, injection pipe; 402, heating element; 403, valve ball; 404, round pipe; 405, screw rod; 406, piston; 407, prism; 408, hydraulic interface; 409, cylinder body; 410, heat insulation sleeve; 411, flange;

[0024] 401a, injection runner; 403a, spherical groove;

[0025] 5, temperature sensor. DETAILED DESCRIPTION

[0026] The following will be described in detail in combination with Figures 1-5 The utility model is further described in detail.

[0027] The embodiment discloses a high-strength luggage integrated injection molding die, which comprises a bottom plate 1, and is characterized in that a lower mold 2 is arranged on the bottom plate 1, an injection mechanism 4 is arranged between the bottom plate 1 and the lower mold 2, the injection mechanism 4 comprises a heat pipe assembly for injecting molten material and a cutoff assembly for sealing an injection port.

[0028] Please refer to Figures 3 to 5 The heat pipe assembly comprises an injection pipe 401, the outer wall of the injection pipe 401 is provided with a heating element 402, the cutoff assembly comprises a valve ball 403 and a round pipe 404, the round pipe 404 is rotationally connected with the injection pipe 401, the round pipe 404 is fixedly penetrated through the valve ball 403, the valve ball 403 is sleeved with the injection pipe 401, the screw rod 405 is screw-connected in the round pipe 404, the cylinder body 409 is connected with the outer wall of the injection pipe 401, the cylinder body 409 is only sleeved with the piston 406 in the axial direction, and one end of the screw rod 405 is connected with the piston 406.

[0029] In this way, after the quantitative injection of the injection device is completed, the injection device stops injection, the plastic melt stops being transported into the mold cavity, the temperature inside the injection tube 401 decreases, the heating element 402 heats the injection tube 401, the residual plastic melt inside the injection tube 401 remains liquid, the hydraulic device inputs hydraulic oil into the circular tube 404, the hydraulic device continuously increases the pressure to extrude the hydraulic oil, the pressure inside the hydraulic oil increases, the piston 406 is forced to slide coaxially in the cylinder body 409, and the piston 406 drives the lead screw 405 to move inside the circular tube 404, the threads on the outer wall of the lead screw 405 engage the inside of the circular tube 404, thereby driving the valve ball 403 to rotate and close the injection tube 401, so that the liquid plastic melt does not solidify on the surface of the product, thereby avoiding obvious water marks.

[0030] The heating element 402 is spirally wound on the outer wall of the injection tube 401, and the outer wall of the injection tube 401 is also provided with a temperature sensor 5. After the temperature inside the injection tube 401 decreases, the heating element 402 is conductive through the sensing device, so that the heating element 402 heats the injection tube 401. At the same time, the heating element 402 is spirally wound on the outer wall of the injection tube 401, so that the residual plastic melt inside the injection tube 401 is uniformly heated, avoiding uneven heating.

[0031] The injection tube 401 is sleeved with a heat insulation sleeve 410, and the heating element 402 and the temperature sensor 5 are sleeved in the heat insulation sleeve 410. When the injection device stops injection and the heating ring heats the residual plastic melt, the heat insulation sleeve 410 reduces the heat exchange between the injection tube 401 and the surrounding environment, reduces the heat loss to the outside world, protects other components, equipment or materials inside the lower mold 2 from heat damage, and avoids performance degradation, shortens the service life, or even damages these components due to overheating.

[0032] The end of the piston 406 away from the lead screw 405 is provided with a prism 407, and the lead screw 405, the piston 406 and the prism 407 are coaxially arranged. The prism 407 is inserted into the cylinder wall of the cylinder body 409. When the hydraulic device continuously applies pressure to the inside of the circular tube 404, in order to prevent the piston 406 from moving with the lead screw 405, the prism 407 limits the piston 406 and the lead screw 405, so that the lead screw 405 can only move along its axis.

[0033] The end of the circular tube 404 away from the cylinder body 409 is provided with a hydraulic interface 408, so that the hydraulic device is connected with the circular tube 404 through the hydraulic interface 408.

[0034] The injection tube 401 is provided with an injection runner 401a along its axial direction, and the valve ball 403 is in sealing rotation sleeve connection with the inner wall of the injection runner 401a, and the injection runner 401a is conical, so that the plastic melt can reduce the flow resistance, and the pressure transmission can be effectively uniform.

[0035] The valve ball 403 is provided with a spherical groove 403a concentrically, and the outer wall of the circular tube 404 and the inner wall of the spherical groove 403a are provided with a gap, and the plastic melt enters the mold cavity through the gap between the inside of the spherical groove 403a and the circular tube 404.

[0036] The diameter of the piston 406 is greater than the diameter of the lead screw 405, and the cross section of the hydraulic pressure of the piston 406 is increased, so that the lead screw 405 is forced to move.

[0037] Please refer to Figures 1 to 2 , the injection tube 401 is fixedly connected with the flange 411 away from the lower mold 2, and the injection tube 401 is connected with the bottom plate 1 through the flange 411.

[0038] In this way, the flange 411 is used to fix the injection tube 401 and the injection device.

[0039] The top end of the lower mold 2 is provided with the upper mold 3, and the upper mold 3 is used in cooperation with the lower mold 2 to quickly form the object.

[0040] The implementation principle of the high-strength luggage integrated injection molding mold is that after the quantitative injection of the injection device is completed, the temperature inside the injection tube 401 is reduced, the temperature sensor 5 detects that the temperature inside the injection tube 401 is reduced, and the heating element 402 is conductive, the heating element 402 heats the injection tube 401, the plastic melt remaining in the injection tube 401 is kept in liquid state, the heat exchange between the injection tube 401 and the surrounding environment is reduced by using the heat insulation sleeve 410, the heat loss to the outside is reduced, the hydraulic oil is input into the circular tube 404 through the hydraulic interface 408, the pressure of the hydraulic device is continuously increased, the hydraulic oil is extruded, the pressure inside the hydraulic oil is increased, the hydraulic pressure acts on the end surface of the lead screw 405 and the annular end surface of the piston 406, the piston 406 is forced to slide into the cylinder 409, and the piston 406 drives the lead screw 405 to move while sliding, so that the valve ball 403 is rotated to close the injection runner 401a.

[0041] The above only describes the preferred embodiment of the present application, and does not limit the present application, any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A high-strength luggage integrated injection molding mold comprising a bottom plate (1), characterized in that: It also includes a lower mold (2) arranged on the bottom plate (1), and an injection mechanism (4) is arranged between the bottom plate (1) and the lower mold (2), the injection mechanism (4) includes a hot pipe assembly for injecting molten material and a cutoff assembly for sealing the injection port; The hot pipe assembly includes an injection pipe (401), and a heating element (402) is arranged on the outer wall of the injection pipe (401); The cutoff assembly includes a valve ball (403) and a circular pipe (404), the circular pipe (404) is rotationally connected with the injection pipe (401), the circular pipe (404) penetrates through the valve ball (403), the valve ball (403) is sleeved with the injection pipe (401), a screw rod (405) is threadedly connected in the circular pipe (404), a cylinder body (409) is connected to the outer wall of the injection pipe (401), a piston (406) is sleeved with the cylinder body (409) only along the axial direction of the cylinder body (409), and one end of the screw rod (405) is connected with the piston (406).

2. The high-strength luggage integrally injection molding mold according to claim 1, characterized in that: The heating element (402) is spirally wound on the outer wall of the injection pipe (401), and the outer wall of the injection pipe (401) is further provided with a temperature sensor (5).

3. The high-strength luggage integrally injection-molded mold according to claim 2, characterized by: The injection pipe (401) is sleeved with a heat insulation sleeve (410), and the heating element (402) and the temperature sensor (5) are sleeved in the heat insulation sleeve (410).

4. The high-strength luggage integrally injection-molded mold according to claim 1, characterized by: A prism (407) is arranged at the end of the piston (406) away from the screw rod (405), the screw rod (405), the piston (406) and the prism (407) are coaxially arranged, and the prism (407) is inserted into the cylinder wall of the cylinder body (409).

5. The high-strength luggage integrally injection-molded mold according to claim 1, characterized by: A hydraulic interface (408) is arranged at the end of the circular pipe (404) away from the cylinder body (409).

6. The high-strength luggage integrally injection-molded mold according to claim 1, characterized by: An injection flow channel (401a) is formed in the injection pipe (401) along the axial direction, and the outer wall of the valve ball (403) is sealingly and rotationally sleeved with the inner wall of the injection flow channel (401a).

7. The high-strength luggage integrally injection-molded mold according to claim 1, characterized by: A spherical groove (403a) is concentrically formed in the valve ball (403), and a gap is arranged between the outer wall of the circular pipe (404) and the inner wall of the spherical groove (403a).

8. The high-strength luggage integrally injection-molded mold according to claim 1, characterized by: The diameter of the piston (406) is greater than the diameter of the screw rod (405).

9. The high-strength luggage integrally injection-molded mold according to claim 1, characterized by: A flange (411) is fixedly connected to the end of the injection pipe (401) away from the lower mold (2), and the injection pipe (401) is connected with the bottom plate (1) through the flange (411).

10. The high-strength luggage integrally injection-molded mold of claim 1, wherein: The top end of the lower mold (2) is provided with an upper mold (3).

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