Plastic uptake box forming mold convenient to demold and forming process

Abstract

The invention relates to the technical field of plastic uptake molds, and particularly discloses a plastic uptake box forming mold convenient to demold and a forming technology.The plastic uptake box forming mold convenient to demold comprises a mold body and further comprises a heat dissipation mechanism, the heat dissipation mechanism comprises an L-shaped frame, a cooling plate, a water inlet pipe set, a water drainage pipe set and a circulation unit, and the mold body is provided with multiple sets of circulation water channels; water inlets and water outlets of the multiple sets of circulating water channels are formed in the two sides of the mold body respectively, each set of L-shaped frames is detachably connected with the mold body through bolts, each set of cooling plates is detachably connected with the corresponding L-shaped frames through bolts, one end of the water inlet pipe set is communicated with one set of cooling plates, and one end of the water drainage pipe set is communicated with the other set of cooling plates. The other end of the water inlet pipe group and the other end of the water outlet pipe group are respectively communicated with the circulating unit. The mold body can be effectively cooled, the cooling rate can be increased, the situation of mold clamping during demolding can be avoided, demolding of the blister box is more convenient and rapid, and the defective product rate is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of blister moulds, in particular to a blister box forming mould and a forming process which are convenient for demoulding. Background Art

[0002] At present, blister mold refers to the mold used in blister production. The lowest cost is the gypsum mold, followed by the electroplated copper mold, and the most expensive is the aluminum mold. The aluminum film is made of aluminum material with high precision. The contours and angles of the products produced are beautiful, and the durability is very high. The blister product is formed by vacuum adsorption of the heated hard sheet. After molding, the bottom edge of the blister box is indirectly stuck on the punch, which makes it difficult to demold the blister box.

[0003] The prior art CN220052861U provides a blister mold for blister box processing that is easy to demold, comprising a mold body, a negative pressure bin is provided at the bottom of the mold body, a connecting head is provided at the bottom end of the negative pressure bin, and a plurality of negative pressure holes are provided on the mold body, the negative pressure holes are connected to the negative pressure bin, and an ejection mechanism is provided at the end of the mold body; the ejection mechanism comprises an opening provided on the upper surface of the end of the mold body, an ejection plate is rotatably installed between the inner walls at both ends of the opening, and a torsion spring is provided at the rotating connection of the ejection plate; a cavity is provided inside the mold body, a connecting hole connected to the negative pressure bin is provided at the bottom of the cavity, and a floating plate is slidably installed in the cavity, the floating plate and the inner wall of the cavity are sealed, and the floating plate is fixedly connected to the ejection plate by a plurality of connecting ropes.

[0004] However, in the prior art, the cooling efficiency of the blister mold is slow, which leads to slow solidification of the product, thereby affecting the demoulding of the product and causing the product to become stuck. Summary of the invention

[0005] The purpose of the present invention is to provide a blister box forming mold and a forming process that are easy to demold, aiming to solve the technical problem in the prior art that the cooling efficiency of the blister mold is slow, resulting in slow product solidification, which in turn affects the demolding of the product and causes the product to become stuck.

[0006] To achieve the above-mentioned purpose, the present invention adopts a blister box forming mold that is easy to demould, including a mold body and a heat dissipation mechanism, wherein the heat dissipation mechanism includes an L frame, a cooling plate, a water inlet pipe group, a drain pipe group and a circulation unit, the mold body has multiple groups of circulating water channels, and the water inlets and water outlets of the multiple groups of circulating water channels are respectively arranged on both sides of the mold body, the number of the L frames is multiple groups, and each group of the L frames is detachably connected to the mold body by bolts and is respectively located on one side of the mold body, the number of the cooling plates is multiple groups, and each group of the cooling plates is respectively connected by bolts. It is detachably connected to the corresponding L-frame by bolts and is respectively located on one side of the corresponding L-frame, and one side of each group of cooling plates is respectively adapted to the water inlet and the water outlet of the circulating water channel, one end of the water inlet pipe group is connected to one group of cooling plates and is located on one side of the cooling plates, one end of the drainage pipe group is connected to another group of cooling plates and is located on one side of the cooling plates, the other end of the water inlet pipe group and the other end of the drainage pipe group are respectively connected to the circulation unit, and the water inlet pipe group and the drainage pipe group are respectively adapted to the circulation unit.

[0007] Among them, each group of cooling plates includes a cooling bin body, an embedded nozzle and a connecting pipe. The number of the embedded nozzles is multiple groups. Each group of embedded nozzles is respectively connected to the cooling bin body and are respectively located on one side of the cooling bin body. The connecting pipe is connected to the cooling bin body and is located at one end of the cooling bin body away from the embedded nozzle.

[0008] Wherein, each group of the embedded nozzles includes a tube body and a sealing ring, the outer wall of the tube body has multiple groups of ring grooves, the number of the sealing rings is multiple, and each group of the sealing rings is respectively sleeved on the outer wall of the corresponding ring groove.

[0009] Wherein, the circulation unit includes a circulation bin, a water pump and a pump supply pipe, the water pump is fixedly connected to the circulation bin and is located at the upper end of the circulation bin, the water inlet pipe group is connected to the output end of the water pump, the drain pipe group is connected to the circulation bin, one end of the pump supply pipe is connected to the input end of the water pump, the other end of the pump supply pipe is connected to the circulation bin, and one end of the pump supply pipe passes through the circulation bin and is located inside the circulation bin.

[0010] Among them, the circulation bin includes a bin body, a bottom plate, fins, TEC refrigeration fins and a sealing plate. The bottom plate is fixedly connected to the bin body and is located at the lower end of the bin body. The fins are in multiple groups, each group of fins is fixedly connected to the bottom plate and is located at the upper end of the bottom plate, and each group of fins is located inside the bin body. The TEC refrigeration fins are respectively arranged at the lower end of the bottom plate. The sealing plate is detachably connected to the bottom plate by bolts and is located at the lower end of the bottom plate.

[0011] Wherein, the circulation bin further includes an exhaust pipe and a filter cover, the exhaust pipe is communicated with the bin body and is located at the upper end of the bin body, the filter cover is threadedly connected to the exhaust pipe, and the filter cover covers the exhaust pipe.

[0012] The present invention also provides a blister box forming process, which is applied to a blister box forming mold that is easy to demould as described above, and comprises the following steps:

[0013] Prepare the sheet material for blister box forming and cut it into appropriate size;

[0014] Put the prepared plastic sheet into the heater to heat it and soften it;

[0015] Spray the release agent evenly on the blister box template;

[0016] The softened plastic sheet is adsorbed and placed on the blister box template, and blistering is achieved by vacuum adsorption;

[0017] After the plastic is formed on the mold, water is supplied and drained through the cooling plate to achieve water circulation, so that the plastic sheet is solidified and then demoulded;

[0018] The folding machine is used to remove the irregular parts of the blister product, and the cut products are disinfected with ultraviolet light to finally complete the processing of the blister box.

[0019] The present invention discloses a blister box forming mold and forming process that are easy to demold. The mold body cooperates with the corresponding work mold to perform blister forming on the softened plastic sheet. After vacuum blister forming, the circulation unit supplies circulating water. The circulation unit pumps the circulating water into the cooling plate on one side of the water inlet of the circulating water channel through the water inlet pipe group. The circulating water enters each group of the circulating water channels through the cooling plate. The continuous flow of the circulating water realizes rapid cooling of the mold body, and enters another group of the cooling plates for unified discharge, and finally circulates to the circulation unit through the drainage pipe group, thereby completing the water cycle. By setting multiple groups of the circulating water channels, and each group of the circulating water channels has a short path, the cooling efficiency can be improved, and the jamming of the mold can be avoided. The L frame is used to install and fix the cooling plates to both sides of the mold body, and is convenient for disassembling and maintaining the cooling plates. The above structure can effectively improve the cooling of the mold body, improve the cooling rate, and avoid the jamming of the mold during demolding, so that the demolding of the blister box is more convenient and quick, and the defective product rate is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 The present invention is a structural schematic diagram of a blister box forming mold that is easy to demould.

[0022] Figure 2 It is a side view of a blister box forming mold which is easy to demould.

[0023] Figure 3 The present invention Figure 2 AA line internal structure cross-sectional view.

[0024] Figure 4 The present invention Figure 2 BB line internal structure cross-sectional view.

[0025] Figure 5 The present invention Figure 4 Enlarged view of the local structure at location C.

[0026] Figure 6 It is a flow chart of the steps of a blister box forming process of the present invention.

[0027] 101-mold body, 102-L frame, 103-water inlet pipe group, 104-drainage pipe group, 105-circulating water channel, 106-cooling bin body, 107-connecting pipe, 108-pipe body, 109-sealing ring, 110-ring groove, 111-water pump, 112-pump supply pipe, 113-bin body, 114-bottom plate, 115-fin, 116-TEC refrigeration plate, 117-sealing plate, 118-exhaust pipe, 119-filter cover, 120-first flow rate sensor, 121-second flow rate sensor, 122-first temperature sensor, 123-second temperature sensor. DETAILED DESCRIPTION

[0028] See also Figures 1 to 5The present invention provides a blister box forming mold that is easy to demould, including a mold body 101, and also includes a heat dissipation mechanism; the heat dissipation mechanism includes an L frame 102, a cooling plate, a water inlet pipe group 103, a drain pipe group 104 and a circulation unit, the mold body 101 has a plurality of groups of circulating water channels 105, and the water inlets and outlets of the plurality of groups of circulating water channels 105 are respectively arranged on both sides of the mold body 101, the number of the L frames 102 is a plurality of groups, and each group of the L frames 102 is detachably connected to the mold body 101 by bolts, and is respectively located on one side of the mold body 101, the number of the cooling plates is a plurality of groups, and each group of the cooling plates is respectively It is detachably connected to the corresponding L-frame 102 by bolts and is respectively located on one side of the corresponding L-frame 102, and one side of each group of cooling plates is respectively adapted to the water inlet and outlet of the circulating water channel 105, one end of the water inlet pipe group 103 is connected to one group of cooling plates and is located on one side of the cooling plates, one end of the drainage pipe group 104 is connected to another group of cooling plates and is located on one side of the cooling plates, the other end of the water inlet pipe group 103 and the other end of the drainage pipe group 104 are respectively connected to the circulation unit, and the water inlet pipe group 103 and the drainage pipe group 104 are respectively adapted to the circulation unit.

[0029] In this embodiment, the mold body 101 cooperates with the corresponding mold to perform vacuum forming on the softened plastic sheet. After vacuum forming, the circulation unit supplies circulating water. The circulation unit pumps the circulating water through the water inlet pipe group 103 into the cooling plate on the water inlet side of the circulating water channel 105. The circulating water enters each group of the circulating water channels 105 through the cooling plate. The continuous flow of circulating water achieves rapid cooling of the mold body 101, and enters another group of cooling plates for unified discharge, and finally circulates to the circulation unit through the drain pipe group 104 to complete the water circulation. By setting multiple groups of circulating water channels 105, and each group of circulating water channels 105 has a short path, the cooling efficiency can be improved, and the jamming of the mold can be avoided. The L frame 102 is used to install and fix the cooling plates to both sides of the mold body 101, and facilitates the disassembly and maintenance of the cooling plates.

[0030] Furthermore, each group of the cooling plates includes a cooling bin body 106, an insert nozzle and a connecting pipe 107. The number of the insert nozzles is multiple groups. Each group of the insert nozzles is respectively connected to the cooling bin body 106 and are respectively located on one side of the cooling bin body 106. The connecting pipe 107 is connected to the cooling bin body 106 and is located at one end of the cooling bin body 106 away from the insert nozzle.

[0031] In this embodiment, multiple groups of the embedded nozzles and the connecting pipes 107 are connected through the cooling chamber body 106. The embedded nozzles are embedded in the interior of the mold body 101, and the connecting pipes 107 are connected to the corresponding water inlet pipe group 103 and the drainage pipe group 104 for water supply and drainage. The stability of the water circulation can be improved by independently supplying water to the mold body 101 through each group of the embedded nozzles.

[0032] Furthermore, each group of the nozzles includes a tube body 108 and a sealing ring 109 , the outer wall of the tube body 108 has multiple groups of annular grooves 110 , and the number of the sealing rings 109 is multiple, and each group of the sealing rings 109 is respectively sleeved on the outer wall of the corresponding annular groove 110 .

[0033] In this embodiment, the tube body 108 is embedded in the mold body 101, and the sealing ring 109 is embedded in the ring groove 110. The sealing ring 109 is installed by clamping, and the sealing ring 109 is prevented from shifting during the assembly process.

[0034] Furthermore, the circulation unit includes a circulation bin, a water pump 111 and a pump supply pipe 112, the water pump 111 is fixedly connected to the circulation bin and is located at the upper end of the circulation bin, the water inlet pipe group 103 is connected to the output end of the water pump 111, the drain pipe group 104 is connected to the circulation bin, one end of the pump supply pipe 112 is connected to the input end of the water pump 111, the other end of the pump supply pipe 112 is connected to the circulation bin, and one end of the pump supply pipe 112 passes through the circulation bin and is located inside the circulation bin.

[0035] In this embodiment, the circulation bin is used to store circulating water, the water pump 111 is arranged at the upper end of the circulation bin, one end of the pump supply pipe 112 is embedded in the interior of the circulation bin, and the other end of the pump supply pipe 112 is connected to the input end of the water pump 111. The water pump 111 is started to extract the circulating water in the circulation bin through the pump supply pipe 112, so as to realize water circulation through the pump supply pipe 112, the water pump 111, the water inlet pipe group 103, the mold body 101, the drainage pipe group 104 and the circulation bin.

[0036] Furthermore, the circulation bin includes a bin body 113, a bottom plate 114, fins 115, TEC refrigeration fins 116 and a sealing plate 117. The bottom plate 114 is fixedly connected to the bin body 113 and is located at the lower end of the bin body 113. The fins 115 are in multiple groups, each group of the fins 115 is fixedly connected to the bottom plate 114 and is located at the upper end of the bottom plate 114, and each group of the fins 115 is located inside the bin body 113. The TEC refrigeration fins 116 are respectively arranged at the lower end of the bottom plate 114. The sealing plate 117 is detachably connected to the bottom plate 114 by bolts and is located at the lower end of the bottom plate 114.

[0037] In this embodiment, a sealed chamber body 113 is formed by the chamber body 113 and the bottom plate 114, and the TEC refrigeration plate 116 is installed and fixed to the bottom of the bottom plate 114 through the sealing plate 117. The bottom plate 114 is cooled by the TEC refrigeration plate 116, and the fins 115 can improve the efficiency of heat conversion, thereby increasing the cooling speed of the circulating water.

[0038] Furthermore, the circulation bin also includes an exhaust pipe 118 and a filter cover 119 . The exhaust pipe 118 is connected to the bin body 113 and is located at the upper end of the bin body 113 . The filter cover 119 is threadedly connected to the exhaust pipe 118 , and the filter cover 119 covers the exhaust pipe 118 .

[0039] In this embodiment, the interior of the warehouse body 113 is exhausted through the exhaust pipe 118 so that the air pressure inside the warehouse body 113 is the same as the atmospheric pressure, thereby avoiding the occurrence of pressure difference that affects the normal water circulation of the circulation unit. The filter cover 119 filters and seals the exhaust pipe 118 to prevent external impurities from entering the interior of the warehouse body 113.

[0040] Furthermore, the heat dissipation mechanism also includes a first flow velocity sensor 120 and a second flow velocity sensor 121, the first flow velocity sensor 120 is connected to the water inlet pipe group 103 and is located on the outer wall of the water inlet pipe group 103, and the second flow velocity sensor 121 is connected to the drainage pipe group 104 and is located on the outer wall of the drainage pipe group 104.

[0041] In this embodiment, the first flow rate sensor 120 detects the real-time flow rate of the water inlet pipe group 103 in real time, and the second flow rate sensor 121 detects the real-time flow rate of the drainage pipe group 104 in real time. By comparing the water inlet flow rate and the drainage flow rate, it is possible to preliminarily determine whether the circulating waterway 105 is blocked. At the same time, the power of the water pump 111 can be adjusted according to the flow rate to meet different blister box processing requirements.

[0042] Furthermore, the heat dissipation mechanism also includes a first temperature sensor 122 and a second temperature sensor 123, the first temperature sensor 122 is connected to the water inlet pipe group 103 and is located on the outer wall of the water inlet pipe group 103, and the second temperature sensor 123 is connected to the drainage pipe group 104 and is located on the outer wall of the drainage pipe group 104.

[0043] In this embodiment, the first temperature sensor 122 detects the real-time temperature of the water inlet pipe group 103, and the second temperature sensor 123 detects the real-time temperature of the drainage pipe group 104. The heat dissipation efficiency can be judged according to the temperature difference. At the same time, the cooling power of the TEC refrigeration plate 116 in the circulation unit can be adjusted and controlled according to the real-time temperature to achieve the best cooling efficiency.

[0044] See also Figure 6 The present invention also provides a blister box forming process, which is applied to a blister box forming mold that is easy to demould as described above, and includes the following steps:

[0045] S1: Prepare the sheet material for blister box forming and cut it into appropriate size;

[0046] S2: putting the prepared plastic sheet into a heater to heat it and soften it;

[0047] S3: Spray the release agent evenly on the blister box template;

[0048] S4: The softened plastic sheet is adsorbed and placed on the blister box template, and blistering is achieved by vacuum adsorption;

[0049] S5: After the plastic is formed on the mold, water is supplied and drained through the cooling plate to achieve water circulation, so that the plastic sheet is solidified and then demolded;

[0050] S6: Use the folding machine to remove the irregular parts of the blister product, and the cut products are sterilized by ultraviolet light to finally complete the processing of the blister box.

[0051] In this embodiment, evenly spraying the release agent can effectively prevent the plastic sheet from sticking to the mold during the molding process, reduce scratches and flaws on the product surface, improve the surface quality and appearance of the product, make the surface of the blister box smoother and flatter, and the appearance is more beautiful. The cooling plate is used for water supply and drainage to achieve water circulation cooling, which can quickly reduce the temperature of the molded plastic sheet, accelerate its curing process, shorten the molding cycle, and perform ultraviolet disinfection on the cut products, which not only ensures the hygiene and safety of the products, but also completes the disinfection process in a short time without the need for additional disinfection equipment and complicated disinfection steps, further shortening the product processing cycle and making the entire blister box molding process more efficient and quick.

[0052] What is disclosed above is only a preferred embodiment of the present invention, and it certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made according to the claims of the present invention still fall within the scope of the invention.

Claims

1. A blister box forming mold that is easy to demould, comprising a mold body, characterized in that: Also includes a heat dissipation mechanism; The heat dissipation mechanism includes an L-frame, a cooling plate, a water inlet pipe group, a drain pipe group and a circulation unit. The mold body has multiple groups of circulating water channels, and the water inlets and water outlets of the multiple groups of circulating water channels are respectively arranged on both sides of the mold body. The number of L-frames is multiple groups, and each group of L-frames is detachably connected to the mold body by bolts and is respectively located on one side of the mold body. The number of cooling plates is multiple groups, and each group of cooling plates is detachably connected to the corresponding L-frame by bolts and is respectively located on one side of the corresponding L-frame, and one side of each group of cooling plates is respectively adapted to the water inlet and water outlet of the circulating water channel. One end of the water inlet pipe group is connected to one group of cooling plates and is located on one side of the cooling plate. One end of the drain pipe group is connected to another group of cooling plates and is located on one side of the cooling plate. The other end of the water inlet pipe group and the other end of the drain pipe group are connected to the circulation unit, and the water inlet pipe group and the drain pipe group are respectively adapted to the circulation unit.

2. A blister box forming mold that is easy to demould according to claim 1, characterized in that: Each group of cooling plates includes a cooling bin body, an embedded nozzle and a connecting pipe. The embedded nozzles are in multiple groups. Each group of embedded nozzles is respectively connected to the cooling bin body and located on one side of the cooling bin body. The connecting pipe is connected to the cooling bin body and located at one end of the cooling bin body away from the embedded nozzle.

3. A blister box forming mold that is easy to demould according to claim 2, characterized in that: Each group of the insert nozzles includes a tube body and a sealing ring. The outer wall of the tube body has multiple groups of ring grooves. The number of the sealing rings is multiple, and each group of the sealing rings is respectively sleeved on the outer wall of the corresponding ring groove.

4. A blister box forming mold that is easy to demould according to claim 1, characterized in that: The circulation unit includes a circulation bin, a water pump and a pump supply pipe. The water pump is fixedly connected to the circulation bin and is located at the upper end of the circulation bin. The water inlet pipe group is connected to the output end of the water pump, and the drain pipe group is connected to the circulation bin. One end of the pump supply pipe is connected to the input end of the water pump, and the other end of the pump supply pipe is connected to the circulation bin, and one end of the pump supply pipe passes through the circulation bin and is located inside the circulation bin.

5. A blister box forming mold that is easy to demould as claimed in claim 4, characterized in that: The circulation bin includes a bin body, a bottom plate, fins, TEC refrigeration fins and a sealing plate. The bottom plate is fixedly connected to the bin body and is located at the lower end of the bin body. The fins are in multiple groups, each group of fins is fixedly connected to the bottom plate and is located at the upper end of the bottom plate, and each group of fins is located inside the bin body. The TEC refrigeration fins are respectively arranged at the lower end of the bottom plate. The sealing plate is detachably connected to the bottom plate by bolts and is located at the lower end of the bottom plate.

6. A blister box forming mold that is easy to demould as claimed in claim 5, characterized in that: The circulation bin further comprises an exhaust pipe and a filter cover, wherein the exhaust pipe is communicated with the bin body and is located at the upper end of the bin body, the filter cover is threadedly connected with the exhaust pipe, and the filter cover covers the exhaust pipe.

7. A blister box forming process, applied to the blister box forming mold that is easy to demould as claimed in claim 1, characterized in that: The steps include: Prepare the sheet material for blister box forming and cut it into appropriate size; Put the prepared plastic sheet into the heater to heat it and soften it; Spray the release agent evenly on the blister box template: The softened plastic sheet is adsorbed and placed on the blister box template, and blistering is achieved by vacuum adsorption; After the plastic is formed on the mold, water is supplied and drained through the cooling plate to achieve water circulation, so that the plastic sheet is solidified and then demoulded; The folding machine is used to remove the irregular parts of the blister product, and the cut products are disinfected with ultraviolet light to finally complete the processing of the blister box.

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