Blow molding die

Abstract

The utility model discloses a blow molding mold which comprises a bottom plate, a machining mechanism is arranged on the top face of the bottom plate and used for machining a forming mold, the machining mechanism comprises a moving assembly, the moving assembly is arranged on the top face of the bottom plate and used for facilitating follow-up cooling demolding, and the moving assembly comprises a moving groove formed in the top face of the bottom plate. A movable plate is movably mounted in the movable groove; the utility model relates to the technical field of dies. According to the blow molding mold, by arranging a second connecting plate and a clamping block, subsequent cooling of the upper mold and the lower mold can be relieved, and when the blow molding mold is used, a pressing plate is pressed to drive the second connecting plate to pull out the clamping block from the interior of a clamping groove; and then the moving assembly is started to drive the lower mold and the upper mold to move the mold to the left side into the cooling assembly, then the mold can be cooled through the cooling assembly to facilitate demolding, the cooling time of the mold is shortened, and the working efficiency of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, specifically a blow molding mold. Background Technology

[0002] Blow molding is a plastic molding method used to manufacture hollow bottles and containers, such as PET bottles and shampoo containers. The principle is to apply air pressure to a heated and softened plastic tube or preform using a mold, causing it to expand and adhere tightly to the cavity wall, then quickly cool and solidify into the finished product.

[0003] Referring to the blow molding die disclosed in patent application CN213593602U, a base plate is included. A gantry frame is fixedly installed on the upper surface of the base plate, and hydraulic cylinders are fixedly installed on the top of the gantry frame. The hydraulic cylinders are symmetrically arranged, and the output rod ends of both sets of hydraulic cylinders are fixedly connected to a first fixed plate. The first fixed plate is slidably connected to the gantry frame through first sliders at both ends. An upper mold is fixedly connected to the lower bottom surface of the first fixed plate, and insert blocks are fixedly connected to the lower bottom surface of the upper mold. The insert blocks are symmetrically arranged. Driving the hydraulic cylinders pushes the first fixed plate downward, thereby pushing the upper mold downward, and further pushing the lower mold and the second fixed plate downward. A spring plunger presses a locking block at the bottom of the second fixed plate to quickly insert into a T-shaped slot on the base plate. The locking block engages with the spring plunger and the T-shaped slot to prevent the bottom mold from retracting due to blow molding pressure, thus improving positioning accuracy and reliability.

[0004] However, the above-mentioned technology uses the cooperation of upper and lower molds to facilitate blow molding of the model. However, demolding requires waiting for the internal model to cool down before demolding. This is because plastic products are easily deformed or damaged when hot, and the thermal expansion of the mold may also cause demolding difficulties. Existing devices generally demold after natural cooling, which takes a long time and affects the working efficiency of the device, making it generally impractical. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a blow molding die that solves the problem that the existing blow molding dies have long cooling and demolding times, which affect the working efficiency of the device and have limited practicality.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a blow molding die, comprising a base plate, wherein a processing mechanism is provided on the top surface of the base plate for processing the molding die, the processing mechanism comprising:

[0007] A movable component is disposed on the top surface of the base plate to facilitate subsequent cooling and demolding. The movable component includes a movable groove formed on the top surface of the base plate, and a movable plate is movably installed inside the movable groove.

[0008] A molding assembly is provided on the top surface of the base plate for forming a mold. The molding assembly includes a mounting frame fixedly installed on the top surface of the base plate, a screw jack fixedly installed on the top surface of the mounting frame, a lower mold fixedly installed on the top surface of the movable plate, an upper mold movably installed on the top surface of the lower mold, and a connecting assembly provided on the top surface of the upper mold for fixing the position of the upper mold.

[0009] The cooling assembly, located on the top surface of the base plate, is used to cool the plastic model.

[0010] Preferably, the connecting assembly includes a fixed frame fixedly installed on the top surface of the upper mold. The fixed frame has slots on both the front and rear sides of its inner cavity. Two limiting plates are fixedly installed on both the front and rear sides of the top surface of the upper mold. A fixed box is movably installed at the bottom end of the screw jack. A first connecting plate is fixedly installed on the bottom surface of the fixed box. Limiting grooves are formed on both the front and rear sides of the bottom surface of the first connecting plate. A second connecting plate is movably installed on both the front and rear sides inside the fixed box. Springs are fixedly installed on opposite sides of the second connecting plate. A pressure plate and a locking block are fixedly installed on the side of the second connecting plate away from the springs. Vertical plates are fixedly installed on both the front and rear sides of the top surface of the first connecting plate. A slot is formed on the bottom surface of the first connecting plate. The bottom end of the screw jack movably penetrates the top surface of the mounting frame and is movably installed on the top surface of the fixed box. The top surface of the vertical plate movably penetrates the bottom surface of the mounting frame and extends to the top surface of the mounting frame.

[0011] Preferably, the top surface of the limiting plate is slidably installed inside the limiting groove, the top surface of the fixing frame is movably installed inside the groove, the bottom surface of the fixing box penetrates through the top surface of the first connecting plate and extends into the groove, the bottom surface of the second connecting plate movably penetrates through the inside of the fixing box and extends into the groove, the bottom surface of the second connecting plate movably penetrates through the inside of the fixing box and extends into the fixing frame, the outer side of the locking block is tightly attached to the inside of the locking groove, and the side of the pressure plate away from the spring movably penetrates through the inside of the fixing box and extends to the outer side of the fixing box.

[0012] Preferably, the movable component further includes a movable screw movably installed inside the movable slot, a DC motor is fixedly installed on the right side of the base plate, the left end of the movable screw is threaded through the right side of the movable plate and movably installed on the left side of the movable slot, and the right end of the movable screw movably passes through the interior of the movable slot and is fixedly installed at the output end of the DC motor.

[0013] Preferably, the cooling assembly includes a cooling frame fixedly installed on the top surface of the base plate and a circulating water cooling device. The cooling frame has a placement slot inside, and a cooling pipe is movably installed inside the placement slot.

[0014] Preferably, one end of the cooling pipe passes through the interior of the placement groove and is fixedly installed at the input end of the circulating water cooling equipment, and the other end of the cooling pipe passes through the interior of the placement groove and is fixedly installed at the output end of the circulating water cooling equipment. The cooling pipe is laid out evenly in an arc shape inside the placement groove.

[0015] Beneficial effects

[0016] This invention provides a blow molding die. Compared with the prior art, it has the following advantages:

[0017] (1) The blow molding mold can release the upper and lower molds through the second connecting plate and the locking block to facilitate subsequent cooling. When in use, press the pressure plate to drive the second connecting plate to pull the locking block out of the slot. Then start the moving component to drive the lower and upper molds to move the model to the left to the inside of the cooling component. Then the model can be cooled by the cooling component to facilitate demolding, reduce the cooling time of the mold and improve the working efficiency of the device.

[0018] (2) The blow molding mold can cool the model through the cooling pipe and cooling frame. When in use, the circulating water cooling equipment is started to pour cooling water into the placement tank. Then the moving component is started to drive the molding component to move the model into the cooling frame. Then the cooling water will reduce the temperature of the mold, which is convenient for subsequent demolding. It is convenient, quick and practical. Attached Figure Description

[0019] Figure 1 This is a three-dimensional appearance schematic diagram of the present utility model;

[0020] Figure 2 This is a front cross-sectional perspective view of the present invention.

[0021] Figure 3 This is a side view sectional perspective view of the three-dimensional appearance of this utility model;

[0022] Figure 4 For the present utility model Figure 3 Enlarged view of point A in the middle.

[0023] In the diagram: 1-Base plate, 2-Processing mechanism, 21-Moving component, 211-DC motor, 212-Moving plate, 213-Moving screw, 214-Moving groove, 22-Forming component, 221-Mounting bracket, 222-Screw jack, 223-Vertical plate, 224-First connecting plate, 225-Upper mold, 226-Lower mold, 227-Fixed box, 228-Fixed frame, 229-Second connecting plate, 2210-Pressure plate, 2211-Spring, 2212-Limiting groove, 2213-Limiting plate, 2214-Card slot, 2215-Card block, 2216-Gate, 23-Cooling component, 231-Circulating water cooling equipment, 232-Cooling pipe, 233-Placement groove, 234-Cooling frame. Detailed Implementation

[0024] 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.

[0025] See Figures 1-4 This utility model provides two technical solutions:

[0026] First embodiment: A blow molding die includes a base plate 1, and a processing mechanism 2 is provided on the top surface of the base plate 1 for processing the molding die. The processing mechanism 2 includes:

[0027] The movable component 21 is disposed on the top surface of the base plate 1 to facilitate subsequent cooling and demolding. The movable component 21 includes a movable groove 214 formed on the top surface of the base plate 1, and a movable plate 212 is movably installed inside the movable groove 214.

[0028] The molding component 22 is set on the top surface of the base plate 1 for forming mold. The molding component 22 includes a mounting frame 221 fixedly installed on the top surface of the base plate 1. A screw jack 222 is fixedly installed on the top surface of the mounting frame 221. The screw jack 222 is an existing device and will not be described in detail here. A lower mold 226 is fixedly installed on the top surface of the movable plate 212. An upper mold 225 is movably installed on the top surface of the lower mold 226. A connecting component is provided on the top surface of the upper mold 225 for fixing the position of the upper mold 225.

[0029] Cooling component 23, located on the top surface of base plate 1, is used to cool the plastic model. The connecting component includes a fixed frame 228 fixedly mounted on the top surface of upper mold 225. The fixed frame 228 has slots 2214 on both the front and rear sides of its inner cavity. Two limiting plates 2213 are fixedly mounted on both the front and rear sides of the top surface of upper mold 225. A fixed box 227 is movably mounted on the bottom end of the screw of screw jack 222. A first connecting plate 224 is fixedly mounted on the bottom surface of the fixed box 227. Limiting grooves 2212 are formed on both the front and rear sides of the bottom surface of the first connecting plate 224. A second connecting plate is movably mounted on both the front and rear sides inside the fixed box 227. Springs 2211 are fixedly installed on opposite sides of the connecting plate 229 and the second connecting plate 229. A pressure plate 2210 and a locking block 2215 are fixedly installed on the side of the second connecting plate 229 away from the springs 2211. Vertical plates 223 are fixedly installed on both the front and rear sides of the top surface of the first connecting plate 224. A slot 2216 is opened on the bottom surface of the first connecting plate 224. The bottom end of the screw of the screw jack 222 movably passes through the top surface of the mounting frame 221 and is movably installed on the top surface of the fixed box 227. The top surface of the vertical plate 223 movably passes through the bottom surface of the mounting frame 221 and extends to the top surface of the mounting frame 221, thus activating the screw jack 222. The first connecting plate 224 can be raised by the limiting position of the vertical plate 223. The top surface of the limiting plate 2213 is slidably installed inside the limiting groove 2212, and the limiting plate 2213 can limit the stability of the movement of the upper mold 225 through the limiting groove 2212. The top surface of the fixing frame 228 is movably installed inside the slot 2216. The bottom surface of the fixing box 227 penetrates through the top surface of the first connecting plate 224 and extends into the slot 2216. The bottom surface of the second connecting plate 229 movably penetrates through the interior of the fixing box 227 and extends into the interior of the slot 2216. It extends into the interior of the fixed frame 228. The outer side of the locking block 2215 is tightly attached to the interior of the slot 2214. The side of the pressure plate 2210 away from the spring 2211 moves through the interior of the fixed box 227 and extends to the outer side of the fixed box 227. Pressing the pressure plate 2210 can drive the second connecting plate 229 to move into the interior of the fixed box 227. Then the fixed box 227 will drive the locking block 2215 to be pulled out of the interior of the slot 2214. Then the restriction on the upper mold 225 can be released. And the elastic force of the spring 2211 can drive the second connecting plate 229 to move so that the locking block 2215 is inserted into the interior of the slot 2214.

[0030] The second connecting plate 229 and the locking block 2215 can release the upper mold 225 and the lower mold 226 to facilitate subsequent cooling. When in use, pressing the pressure plate 2210 drives the second connecting plate 229 to pull the locking block 2215 out of the slot 2214. Then, the moving component 21 is activated to move the lower mold 226 and the upper mold 225 to the left to the inside of the cooling component 23. The cooling component 23 can then cool the model to facilitate demolding, reduce the cooling time of the mold, and improve the working efficiency of the device.

[0031] The second embodiment differs from the first embodiment in that: the moving component 21 further includes a movable screw 213 movably installed inside the movable groove 214; a DC motor 211 is fixedly installed on the right side of the base plate 1; the left end of the movable screw 213 is threaded through the right side of the movable plate 212 and movably installed on the left side of the movable groove 214; the right end of the movable screw 213 movably passes through the interior of the movable groove 214 and is fixedly installed at the output end of the DC motor 211; starting the DC motor 211 can drive the movable screw 213 to rotate, causing the movable plate 212 to move to the left, facilitating subsequent cooling and demolding; the cooling component 23 includes a cooling frame fixedly installed on the top surface of the base plate 1. 234 and circulating water cooling device 231, and the circulating water cooling device 231 is an existing mechanism, so it will not be described in detail here. The interior of the cooling frame 234 is provided with a placement slot 233. A cooling pipe 232 is movably installed inside the placement slot 233. One end of the cooling pipe 232 passes through the interior of the placement slot 233 and is fixedly installed at the input end of the circulating water cooling device 231. The other end of the cooling pipe 232 passes through the interior of the placement slot 233 and is fixedly installed at the output end of the circulating water cooling device 231. The cooling pipe 232 is evenly laid in an arc shape inside the placement slot 233, and the temperature of the model can be reduced by circulating water cooling through the circulating water cooling device 231 and the placement slot 233.

[0032] The model can be cooled by the cooling pipe 232 and cooling frame 234. When in use, the circulating water cooling device 231 is started to pour cooling water into the placement tank 233. Then, the moving component 21 is started to drive the molding component 22 to move the model into the cooling frame 234. Then, the cooling water will reduce the temperature of the mold, which is convenient for subsequent demolding. It is convenient, quick and practical.

[0033] Furthermore, all content not described in detail in this specification is existing technology known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited; conventional equipment can be used.

[0034] In use, the operator connects the device to power, then places molten plastic into the lower mold 226. The screw jack 222 is then activated, and the first connecting plate 224 descends via the limit switch of the vertical plate 223. The first connecting plate 224 then covers the upper mold 225. The pipe is then connected to the connecting pipe between the upper mold 225 and the lower mold 226 for blow molding. After molding, pressing the pressure plate 2210 drives the second connecting plate 229 to pull the locking block 2215 out of the slot 2214. Then, starting the DC motor 211 rotates the movable screw 213, causing the movable plate 212 to move to the left. The movable plate 212 then drives the lower... Mold 226 and upper mold 225 move the model to the left into the cooling frame 234. At this time, the inner side of the cooling frame 234 will be attached to the outer side of the upper mold 225 and lower mold 226. The cooling water in the cooling pipe 232 will reduce the temperature of the mold. After a period of time, the DC motor 211 will be started to drive the movable screw 213 to rotate in the opposite direction to reset the movable plate 212. Then, the pressure plate 2210 will be released. The elastic force of the spring 2211 will drive the second connecting plate 229 to move so that the locking block 2215 can be inserted into the slot 2214. Then, the screw jack 222 will be started to drive the first connecting plate 224 to move the upper mold 225 upward so that demolding can be performed.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A blow moulding mould comprising a base plate (1), characterised in that: The top surface of the bottom plate (1) is provided with a processing mechanism (2) for processing forming molds, and the processing mechanism (2) comprises: A moving assembly (21) is arranged on the top surface of the bottom plate (1) to facilitate subsequent cooling demolding, and the moving assembly (21) comprises a movable groove (214) opened on the top surface of the bottom plate (1), and a movable plate (212) is movably arranged in the movable groove (214); A forming assembly (22) is arranged on the top surface of the bottom plate (1) for forming molds, and the forming assembly (22) comprises a mounting frame (221) fixedly arranged on the top surface of the bottom plate (1), a lead screw elevator (222) fixedly arranged on the top surface of the mounting frame (221), a lower mold (226) fixedly arranged on the top surface of the movable plate (212), an upper mold (225) movably arranged on the top surface of the lower mold (226), and a connecting assembly arranged on the top surface of the upper mold (225) for fixing the position of the upper mold (225); A cooling assembly (23) is arranged on the top surface of the bottom plate (1) for cooling the plastic model.

2. A blow molding mold according to claim 1, characterized in that: The connecting assembly comprises a fixed frame (228) fixedly arranged on the top surface of the upper mold (225), clamping grooves (2214) opened on the front and back sides of the inner cavity of the fixed frame (228), two limiting plates (2213) fixedly arranged on the front and back sides of the top surface of the upper mold (225), a fixed box (227) movably arranged at the bottom end of the lead screw of the lead screw elevator (222), a first connecting plate (224) fixedly arranged on the bottom surface of the fixed box (227), limiting grooves (2212) opened on the front and back sides of the bottom surface of the first connecting plate (224), second connecting plates (229) movably arranged on the front and back sides of the inner cavity of the fixed box (227), springs (2211) fixedly arranged on the opposite sides of the second connecting plates (229), pressing plates (2210) and clamping blocks (2215) fixedly arranged on the sides of the second connecting plates (229) away from the springs (2211), vertical plates (223) fixedly arranged on the front and back sides of the top surface of the first connecting plate (224), a notch (2216) opened on the bottom surface of the first connecting plate (224), and the bottom end of the lead screw of the lead screw elevator (222) movably penetrates through the top surface of the mounting frame (221) and is movably arranged on the top surface of the fixed box (227), and the top surface of the vertical plate (223) movably penetrates through the bottom surface of the mounting frame (221) and extends to the top surface of the mounting frame (221).

3. A blow molding mold according to claim 2, characterized in that: The top surface of the limiting plate (2213) is slidingly installed inside the limiting groove (2212), the top surface of the fixed frame (228) is movably installed inside the slot (2216), the bottom surface of the fixed box (227) penetrates the top surface of the first connecting plate (224) and extends to the inside of the slot (2216), the bottom surface of the second connecting plate (229) movably penetrates the inside of the fixed box (227) and extends to the inside of the slot (2216), the bottom surface of the second connecting plate (229) movably penetrates the inside of the fixed box (227) and extends to the inside of the fixed frame (228), the outer side of the clamping block (2215) is tightly attached to the inside of the clamping groove (2214), and the side of the pressing plate (2210) away from the spring (2211) movably penetrates the inside of the fixed box (227) and extends to the outside of the fixed box (227).

4. A blow molding mold according to claim 1, characterized by: The moving assembly (21) further comprises a movable screw rod (213) movably installed inside the movable groove (214), and a DC motor (211) is fixedly installed on the right side of the bottom plate (1), the left end of the movable screw rod (213) is screwed through the right side of the movable plate (212) and movably installed on the left side of the movable groove (214), and the right end of the movable screw rod (213) movably penetrates the inside of the movable groove (214) and is fixedly installed on the output end of the DC motor (211).

5. A blow molding mold according to claim 1, characterized by: The cooling assembly (23) comprises a cooling frame (234) and a circulating water cooling device (231) fixedly installed on the top surface of the bottom plate (1), and a placing groove (233) is formed in the inside of the cooling frame (234), and a cooling pipe (232) is movably installed in the inside of the placing groove (233).

6. A blow molding mold according to claim 5, characterized in that: One end of the cooling pipe (232) penetrates the inside of the placing groove (233) and is fixedly installed on the input end of the circulating water cooling device (231), the other end of the cooling pipe (232) penetrates the inside of the placing groove (233) and is fixedly installed on the output end of the circulating water cooling device (231), and the cooling pipe (232) is uniformly laid in an arc shape in the inside of the placing groove (233).

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