Sheet pretreatment device for plastic uptake hot pressing

Abstract

The sheet pretreatment device comprises a rack and a fixing plate, an L-shaped fixing frame is fixed to the top of the rack, a movable seat is arranged in an empty groove, a feeding assembly is arranged on the movable seat, and a transverse moving mechanism is further arranged in the empty groove. The two sets of conveying belts can bear and convey the two ends of a plastic sheet correspondingly, in the conveying process, a sponge column wipes and cleans the plastic sheet, after the sponge column cleans the plastic sheet, a rotating motor can drive a rotating cylinder to rotate, a plurality of sets of fixing cylinders and the sponge column on the rotating cylinder can be used alternately, and the conveying efficiency is improved. The situation that the cleaning effect of the sponge columns becomes poor due to continuous use of the sponge columns is avoided, the sponge columns attached with impurities can enter the solvent in the solvent cavity again, the cleaning mechanism in the solvent cavity can clean the sponge columns attached with the impurities, and the solvent filtering mechanism in the filtering cavity can circularly filter the solvent; and the cleanliness of the solvent is ensured.

Description

Technical Field

[0001] The invention relates to the technical field related to blister packaging equipment, in particular to a sheet material pretreatment device for blister hot pressing. Background Art

[0002] Blister packaging is a packaging method in which plastic sheets are heated and softened, then formed into a shape using a hot pressing mold, and the product is wrapped or fixed in the formed plastic packaging. However, during the production, transportation or storage of plastic sheets, the surface may be contaminated with dust, oil and other impurities due to static electricity. If no pretreatment is performed, these impurities may be pressed into the plastic product during the hot pressing process, forming defects and affecting the appearance quality of the product.

[0003] At present, the existing pretreatment method usually uses a sponge pad to wipe the plastic sheet, and for stubborn stains, it will be wiped with a detergent. However, after the sponge pad wipes the plastic sheet, the stains will also adhere to the sponge pad, and the sponge pad is usually used continuously. When the sponge pad is used to wipe the plastic sheet again, the stains previously attached to the sponge pad will be transferred back to the sheet, which will greatly reduce the cleaning effect and affect the subsequent cleaning effect of the plastic sheet. Summary of the invention

[0004] The object of the present invention is to provide a sheet pretreatment device for blister hot pressing, so as to solve the problem that the existing pretreatment method proposed in the above background technology usually uses a sponge pad to wipe the plastic sheet. However, after the sponge pad wipes the plastic sheet, stains will also adhere to the sponge pad, and the sponge pad is usually used continuously. When the sponge pad is used to wipe the plastic sheet again, the stains previously attached to the sponge pad will be transferred back to the sheet, which will greatly reduce the cleaning effect.

[0005] To achieve the above object, the present invention provides the following technical solution: a sheet material pretreatment device for thermoforming and hot pressing, comprising a frame and a fixing plate,

[0006] An L-shaped fixing frame is fixed on the top of the frame, and an empty slot is opened on the L-shaped fixing frame, a movable seat is arranged in the empty slot, and a feeding assembly is arranged on the movable seat, and a transverse movement mechanism is also arranged in the empty slot, and the transverse movement mechanism is used to drive the movable seat to move transversely;

[0007] Conveyor belts are arranged at both ends of the inner lower side of the fixed plate, and pressure rollers are arranged at both ends of the inner upper side of the fixed plate. A solvent chamber is opened inside the frame, and a rotating drum is installed inside the solvent chamber. A rotating motor is also fixed inside the solvent chamber, and the output end of the rotating motor is connected to the rotating drum. Several groups of fixed drums are fixed on the rotating drum, and a sponge column is arranged at one end of the outer side of the fixed drum.

[0008] A cleaning mechanism is also provided inside the solvent chamber, a filter chamber is provided on the frame, and a solvent filtering mechanism is provided in the filter chamber;

[0009] A groove is provided on the top of the frame, and a drying mechanism is arranged in the groove.

[0010] Preferably, the feeding assembly comprises a cylinder, the cylinder is penetrated and fixed on the movable seat, and a suction cup group is arranged at the output end of the cylinder, and a plurality of groups of suction cups are arranged at the bottom of the suction cup group.

[0011] In the above technical solution, the suction cup group is driven downward by the cylinder, so that the suction cups at the bottom of the suction cup group can absorb and load the stacked plastic sheets.

[0012] Preferably, the transverse movement mechanism includes a screw rod, which is transversely installed at one end of the interior of the empty slot, and a guide rod is fixed to the other end of the interior of the empty slot, the screw rod and the guide rod respectively pass through the two ends of the movable seat, and the screw rod passes through the movable seat and is threadedly connected to the movable seat, a transverse movement motor is fixed to the outside of the L-shaped fixed frame, and the output end of the transverse movement motor is connected to the screw rod.

[0013] In the above technical solution, the lateral movement motor drives the lead screw to rotate, so that the lead screw can drive the movable seat threadedly connected thereto to move horizontally, and the guide rod can guide the lateral movement of the movable seat.

[0014] Preferably, a movable rod is provided inside the fixed cylinder, and the movable rod is connected to the sponge column; a spring is fixed inside the fixed cylinder, and the spring is connected to the movable rod.

[0015] In the above technical solution, the movable rod and the sponge column can be extended and retracted under the action of the spring elastic force, so as to avoid the sponge column exerting excessive pressure on the plastic sheet during the cleaning process, thereby causing deformation of the sheet.

[0016] Preferably, an arc-shaped seat is fixed on the top of the solvent chamber.

[0017] In the above technical solution, when the drum rotates clockwise to replace the sponge column, the sponge column soaked in the solvent will be filled with the solvent, and as the drum rotates, the sponge column will press against the arc seat, and the sponge column will discharge excess solvent under the action of squeezing, thereby avoiding excessive solvent after the sponge column is cleaned and affecting the cleaning effect of the plastic sheet.

[0018] Preferably, the cleaning mechanism comprises a cleaning plate, which is installed inside the solvent chamber and has an arc-shaped groove formed thereon, in which a plurality of groups of convex strips are fixed.

[0019] In the above technical solution, when the drum rotates clockwise to replace the sponge column, when the sponge column with impurities attached rotates to the bottom of the drum, the sponge column will move into the arc groove inside the cleaning plate, and the convex strips in the arc groove can produce a kneading effect on the sponge column when it rotates. Since the stains on the plastic sheet are usually impurities that are easy to clean, such as dust or oil, the impurities on the sponge column can be effectively removed by rubbing, thereby achieving the cleaning of the sponge column.

[0020] Preferably, the solvent filtering mechanism comprises a filter screen, the filter screen is fixed in the filter cavity, and the filter cavity is connected with the solvent cavity through a one-way valve, a delivery pump is fixed in the filter cavity, and delivery pipes are arranged at both ends of the delivery pump.

[0021] In the above technical solution, the solvent in the solvent chamber can be discharged into the filter chamber through the one-way valve. After the solvent enters the filter chamber, the filter net can filter out impurities in the solvent. The delivery pump can re-introduce the filtered solvent into the solvent chamber through the delivery pipe, thereby achieving a circulating filtration effect on the solvent.

[0022] Preferably, the drying mechanism comprises a fan, the fan is fixed in the groove, and an electric heating wire is also fixed inside the groove.

[0023] In the above technical solution, after wiping the plastic sheet, the fan can be used in conjunction with the electric heating wire to generate hot air to dry the plastic sheet, thereby avoiding excessive moisture adhering to the plastic sheet during the wiping process.

[0024] Compared with the prior art, the invention has the following beneficial effects: the sheet material pretreatment device for thermoforming and hot pressing,

[0025] (1) Two groups of conveyor belts can carry and convey the two ends of the plastic sheet respectively, and the pressure roller can press the plastic sheet when conveying it. During the conveying process, the sponge column outside the fixed cylinder will wipe and clean the plastic sheet, so as to achieve the purpose of continuous operation. After the sponge column is cleaned, the rotating drum can be driven by the rotating motor to rotate, so that several groups of fixed drums and sponge columns on the rotating drum can be used in rotation, avoiding the continuous use of the sponge column and causing its cleaning effect to deteriorate. The sponge column with impurities attached will re-enter the solvent in the solvent chamber, and the cleaning mechanism in the solvent chamber will clean the sponge column with impurities attached, and the solvent filtering mechanism in the filtering chamber can circulate and filter the solvent to ensure the cleanliness of the solvent. This technical solution can realize the rotation of multiple groups of sponge columns, and can also realize automatic cleaning of the sponge columns and solvent filtering without manual participation, which improves the cleaning effect of the plastic sheet and also improves the convenience during use;

[0026] (2) When in use, the plastic sheets to be cleaned can be stacked in advance, and the suction cup group can be driven down by the cylinder to make the suction cup at the bottom of the suction cup group absorb and load the stacked plastic sheets, and the screw rod can be driven to rotate by the transverse motor to make the screw rod drive the movable seat connected to it by thread to move horizontally, so that the plastic sheets can be automatically loaded, which not only reduces the labor intensity of the staff, improves the working efficiency, but also improves the accuracy of loading. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a front view structural schematic diagram of the present invention;

[0028] Figure 2 It is a schematic diagram of the top view of the L-shaped fixing frame of the present invention;

[0029] Figure 3 It is a schematic diagram of the cross-sectional structure of the fixing tube of the present invention;

[0030] Figure 4 It is a schematic diagram of the top view of the fixed plate and the conveyor belt of the present invention;

[0031] Figure 5 It is a schematic diagram of the cleaning plate structure of the present invention.

[0032] In the figure: 1, frame, 2, L-shaped fixed frame, 3, movable seat, 4, cylinder, 5, suction cup group, 6, suction cup, 7, transverse movement mechanism, 701, screw rod, 702, guide rod, 703, transverse movement motor, 8, fixed plate, 9, conveyor belt, 10, pressure roller, 11, rotating drum, 12, rotating motor, 13, fixed drum, 14, movable rod, 15, sponge column, 16, spring, 17, arc seat, 18, cleaning mechanism, 1801, cleaning plate, 1802, convex strip, 19, solvent filtering mechanism, 1901, filter screen, 1902, one-way valve, 1903, conveying pump, 20, drying mechanism, 2001, fan, 2002, heating wire. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] See also Figure 1-5 The present invention provides a technical solution: a sheet material pretreatment device for thermoforming and hot pressing, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, an L-shaped fixing frame 2 is fixed on the top of the frame 1, and an empty slot is opened on the L-shaped fixing frame 2, a movable seat 3 is arranged in the empty slot, and a feeding assembly is arranged on the movable seat 3, and a transverse movement mechanism 7 is also arranged in the empty slot, and the transverse movement mechanism 7 is used to drive the movable seat 3 to move horizontally;

[0035] Conveyor belts 9 are arranged at both ends of the inner lower side of the fixed plate 8, and pressure rollers 10 are arranged at both ends of the inner upper side of the fixed plate 8. A solvent chamber is opened inside the frame 1, and a rotating drum 11 is installed inside the solvent chamber. A rotating motor 12 is also fixed inside the solvent chamber, and the output end of the rotating motor 12 is connected to the rotating drum 11. Several groups of fixed drums 13 are fixed on the rotating drum 11, and a sponge column 15 is arranged at one end of the outer side of the fixed drum 13;

[0036] A cleaning mechanism 18 is also provided inside the solvent chamber, and a filter chamber is provided in the frame 1, and a solvent filter mechanism 19 is provided in the filter chamber;

[0037] A groove is formed on the top of the frame 1, and a drying mechanism 20 is arranged in the groove.

[0038] like Figure 1 and Figure 2 As shown, the feeding assembly includes a cylinder 4, which is fixed on the movable seat 3, and a suction cup group 5 is arranged at the output end of the cylinder 4, and a plurality of groups of suction cups 6 are arranged at the bottom of the suction cup group 5.

[0039] like Figure 1 and Figure 2 As shown, the transverse movement mechanism 7 includes a screw rod 701, which is horizontally installed at one end of the interior of the empty slot, and a guide rod 702 is fixed to the other end of the interior of the empty slot. The screw rod 701 and the guide rod 702 respectively pass through the two ends of the movable seat 3, and the screw rod 701 passes through the movable seat 3 and is threadedly connected to it. A transverse movement motor 703 is fixed to the outside of the L-shaped fixed frame 2, and the output end of the transverse movement motor 703 is connected to the screw rod 701.

[0040] like Figure 1 and Figure 3 As shown, a movable rod 14 is disposed inside the fixed cylinder 13 , and the movable rod 14 is connected to the sponge column 15 . A spring 16 is fixed inside the fixed cylinder 13 , and the spring 16 is connected to the movable rod 14 .

[0041] like Figure 1 As shown, an arc-shaped seat 17 is fixed on the top of the solvent chamber.

[0042] like Figure 1 and Figure 5 As shown, the cleaning mechanism 18 includes a cleaning plate 1801, which is installed inside the solvent chamber and has an arc-shaped groove formed thereon, in which a plurality of groups of convex strips 1802 are fixed.

[0043] like Figure 1 As shown, the solvent filtering mechanism 19 includes a filter screen 1901 , which is fixed in a filter cavity, and the filter cavity is connected to the solvent cavity through a one-way valve 1902 . A delivery pump 1903 is fixed in the filter cavity, and delivery pipes are provided at both ends of the delivery pump 1903 .

[0044] like Figure 1 As shown, the drying mechanism 20 includes a fan 2001, which is fixed in a groove, and a heating wire 2002 is also fixed inside the groove.

[0045] Working principle: When in use, the stacked plastic sheets are placed under the L-shaped fixed frame 2. When loading, the cylinder 4 can be opened to drive the suction cup group 5 to descend, so that the suction cup 6 at the bottom of the suction cup group 5 can adsorb the plastic sheets. Then, the transverse motor 703 can be turned on to drive the screw rod 701 to rotate, so that the screw rod 701 drives the movable seat 3, the cylinder 4, the suction cup group 5 and the plastic sheets to move laterally. After the plastic sheets are moved to align with the two groups of conveyor belts 9, the cylinder 4 is opened to drive the suction cup group 5 to descend, and the plastic sheets are placed on the two groups of conveyor belts 9. Then, the two groups of conveyor belts 9 can be opened to transport the plastic sheets. During the conveying process, the pressing roller 10 will press against the upper two sides of the plastic sheet to press the plastic sheet tightly to prevent it from tilting. During the lateral movement of the plastic sheet, the sponge column 15A outside the fixed cylinder 13 will wipe and clean the plastic sheet. Since a spring 16 is provided inside the fixed cylinder 13, the elastic force of the spring 16 can make the movable rod 14 and the sponge column 15 retractable to prevent the sponge column 15 from exerting too much pressure on the plastic sheet during the cleaning process, causing the sheet to deform. As the plastic sheet continues to be conveyed, the fan 2001 can be turned on to cooperate with the electric heating wire 2002 to blow hot air to dry the plastic sheet. After the sponge column 15A wipes the plastic sheet, impurities will adhere to the sponge column 15A. Then the motor 12 can be turned on to drive the drum 11 to rotate clockwise, so that the sponge column 15B on the drum 11 can be rotated to the top of the drum 11 for rotation use. Since the sponge column 15B is immersed in the solvent when not in use, it will resist the arc seat 17 during the movement of the sponge column 15B. The sponge column 15 will discharge the excess solvent under the action of squeezing, and as the drum 11 rotates, the sponge column 15A will rotate into the solvent in the solvent chamber, and the sponge column 15A will be on the cleaning plate The convex strips 1802 in the arc groove 1801 will also produce a certain kneading effect on the sponge column 15A to remove impurities on the sponge column 15A. During the cleaning process of the sponge column 15A, the impurities will also settle in the solvent cavity. During use, the one-way valve 1902 can be opened to discharge the solvent in the solvent cavity into the filter cavity. After the solvent enters the filter cavity, the filter net 1901 can filter out the impurities in the solvent, and then the delivery pump 1903 can be used to allow it to pass through the delivery pipe to re-introduce the filtered solvent into the solvent cavity, thereby achieving a circulating filtration effect on the solvent.

[0046] This completes the entire operation, and the contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0047] The directions or positional relationships indicated by terms such as "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing the present invention, and do not indicate or imply that the devices or elements referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the protection content of the present invention.

[0048] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A sheet material pretreatment device for thermoforming and hot pressing, comprising a frame (1) and a fixing plate (8), characterized in that: An L-shaped fixing frame (2) is fixed on the top of the frame (1), and an empty slot is provided on the L-shaped fixing frame (2), a movable seat (3) is provided in the empty slot, and a feeding assembly is provided on the movable seat (3), and a transverse movement mechanism (7) is also provided in the empty slot, and the transverse movement mechanism (7) is used to drive the movable seat (3) to move transversely; Conveyor belts (9) are arranged at both ends of the inner lower side of the fixed plate (8), and pressure rollers (10) are arranged at both ends of the inner upper side of the fixed plate (8). A solvent chamber is provided inside the frame (1), and a rotating drum (11) is installed inside the solvent chamber. A rotating motor (12) is also fixed inside the solvent chamber, and the output end of the rotating motor (12) is connected to the rotating drum (11). A plurality of groups of fixed drums (13) are fixed on the rotating drum (11), and a sponge column (15) is arranged at one end of the outer side of the fixed drum (13); A cleaning mechanism (18) is also provided inside the solvent chamber, and a filter chamber is provided on the frame (1), and a solvent filter mechanism (19) is provided in the filter chamber; The top of the frame (1) is provided with a groove, and a drying mechanism (20) is arranged in the groove.

2. A sheet material pretreatment device for thermoforming and hot pressing according to claim 1, characterized in that: The feeding assembly comprises a cylinder (4), the cylinder (4) is fixed through the movable seat (3), and a suction cup group (5) is arranged at the output end of the cylinder (4), and a plurality of groups of suction cups (6) are arranged at the bottom of the suction cup group (5).

3. The sheet material pretreatment device for thermoforming and hot pressing according to claim 1, characterized in that: The transverse movement mechanism (7) comprises a screw rod (701), the screw rod (701) is transversely installed at one end of the interior of the empty slot, and a guide rod (702) is fixed to the other end of the interior of the empty slot, the screw rod (701) and the guide rod (702) respectively pass through the two ends of the movable seat (3), and the screw rod (701) passes through the movable seat (3) and is threadedly connected thereto, a transverse movement motor (703) is fixed to the outside of the L-shaped fixed frame (2), and the output end of the transverse movement motor (703) is connected to the screw rod (701).

4. The sheet material pretreatment device for thermoforming and hot pressing according to claim 1, characterized in that: A movable rod (14) is arranged inside the fixed cylinder (13), and the movable rod (14) is connected to the sponge column (15). A spring (16) is fixed inside the fixed cylinder (13), and the spring (16) is connected to the movable rod (14).

5. The sheet material pretreatment device for thermoforming and hot pressing according to claim 1, characterized in that: An arc-shaped seat (17) is fixed on the top of the solvent chamber.

6. The sheet material pretreatment device for thermoforming and hot pressing according to claim 1, characterized in that: The cleaning mechanism (18) comprises a cleaning plate (1801), which is installed inside the solvent chamber and has an arc-shaped groove formed thereon, in which a plurality of groups of convex strips (1802) are fixed.

7. The sheet material pretreatment device for thermoforming and hot pressing according to claim 1, characterized in that: The solvent filtering mechanism (19) comprises a filter screen (1901), wherein the filter screen (1901) is fixed in a filter chamber, and the filter chamber is connected to the solvent chamber via a one-way valve (1902). A delivery pump (1903) is fixed in the filter chamber, and delivery pipes are provided at both ends of the delivery pump (1903).

8. The sheet material pretreatment device for thermoforming and hot pressing according to claim 1, characterized in that: The drying mechanism (20) comprises a fan (2001), the fan (2001) is fixed in the groove, and a heating wire (2002) is also fixed inside the groove.

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