Wet tissue cover processing and injection molding device

Abstract

The utility model relates to the technical field of wet tissue cover production and processing, in particular to a wet tissue cover processing injection molding device which comprises an injection molding machine bin, a folding discharging mechanism is arranged in the injection molding machine bin, and the folding discharging mechanism comprises a discharging receding device. Folding the frame seat; a folding cavity; provided is an internal pressing folding device. According to the wet tissue cover processing and injection molding device, the folding discharging mechanism is arranged, a discharging receding device in the folding discharging mechanism is used for controlling a folding frame base to rotate and then make corresponding contact with the discharging face of the movable mold, and the movable mold jacks the wet tissue cover subjected to injection molding into a folding cavity through a material jacking device in the movable mold; the internal pressing folding device is used for internally pressing the folding center of the wet tissue cover, batch folding and pressing work of the wet tissue cover is achieved in sequence, automatic and batch folding work is conducted on the wet tissue cover just subjected to injection molding in the injection molding machine, the transportation procedures before and after injection molding are reduced, and meanwhile the overall folding machining rate of the wet tissue cover can be increased.

Description

Technical Field

[0001] The utility model relates to the technical field of wet wipes cover production and processing, in particular to a wet wipes cover processing injection molding device. Background Art

[0002] Wet wipes are commonly used in daily life, and are generally packaged in paper-plastic bags. A wet wipe cover is added to the paper-plastic bag. If the remaining wet wipes are not properly protected after unsealing, the wet wipes will be wasted due to drying or contamination. The use of a wet wipe cover can play a role in dust prevention and moisturizing, so the wet wipe cover is widely used. The existing wet wipe cover generally includes an upper cover and a base that can be buckled together. The base is provided with an extraction port for extracting wet wipes, and the upper cover is arranged on the upper part of the base and can be flipped relative to the base.

[0003] Most of the existing special injection molding machines for wet wipes cover adopt the method of lateral injection molding, and select the molds that move horizontally to the left and right for combined injection molding. After injection molding and cooling molding, the wet wipes cover is unloaded as a whole by splitting the mold and using the ejection mechanism in one of the molds. The ejection mechanism is ejected horizontally in the mold, and the ejected wet wipes cover body falls to the bottom of the machine for unloading. The wet wipes cover is one-time injection molded by the injection molding machine. After injection molding, the upper cover and the base are in an unfolded state and are basically on the same horizontal plane. At this time, the upper cover and the base need to be folded in time. The traditional solution is to set a folding device outside the injection molding machine to fold the wet wipes cover after the injection molding is completed. The wet wipes cover in the unfolded state needs to be placed and sorted by the sorting device before folding. The two additional processes not only delay the transportation time, but also affect the overall production and processing efficiency of the wet wipes cover. In view of this, we propose a wet wipes cover processing injection molding device. Utility Model Content

[0004] The purpose of the embodiment of the utility model is to provide a wet wipes cover processing injection molding device, which solves the problems in the background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A wet wipe cover processing injection molding device comprises an injection molding machine chamber, wherein a folding and blanking mechanism is arranged in the injection molding machine chamber, and the folding and blanking mechanism is located between a fixed mold and a movable mold, wherein the folding and blanking mechanism comprises a blanking and giving way device which flips under the driving of an external force, and a folding frame seat which is installed on the blanking and giving way device and is driven by the blanking and giving way device to be perpendicular or parallel to the blanking surface of the movable mold, wherein a folding cavity for accommodating the wet wipe cover is provided inside the folding frame seat, and an internal pressure folding device for folding the wet wipe cover in the folding cavity is arranged on the folding frame seat.

[0007] Preferably, the folding cavity comprises a communicating guide cavity and a merging cavity, the merging cavity is located at the center line of the guide cavity, and two inner side surfaces of the guide cavity are inclined.

[0008] Preferably, the internal pressure folding device includes a connecting base, a stop block, a merging component for merging and folding the wet wipe cover in a semi-folded state in a merging chamber, and a control component for controlling the moving position of the connecting base, the connecting base is slidably connected to the folding frame seat, the interior of the connecting base is elastically connected to a rotating shaft via a torsion spring, a one-way clamping seat for unidirectional movement of the wet wipe cover is fixedly connected to the rotating shaft, an inclined clamping block is elastically connected to the interior of the one-way clamping seat via a spring, the rotating shaft passes through both ends of the connecting base and is fixedly connected to passive plates, and the passive plate drives the one-way clamping seat to rotate by the extrusion force of contact with the stop block during the movement of the connecting base, and the stop block is fixed to the folding frame seat.

[0009] Preferably, the material unloading and clearing device is connected to a driving motor as a flipping power, and the motor is installed inside the injection molding machine chamber. The material unloading and clearing device includes a rotating rod installed on the motor output shaft, and the rotating rod is connected to an arm rod, and the end of the arm rod is connected to a corresponding template. The end of the rotating rod away from the motor is rotatably connected in the injection molding machine chamber, and the surface of the corresponding template is fixedly connected to the surface of the folding frame seat.

[0010] Preferably, the merging assembly includes a side pressure plate, a side arm plate and an inner pressure rod, the surfaces of the side pressure plate and the side arm plate are both slidably connected inside the folding frame seat, the side pressure plate is fixed to the side arm plate, and the end of the inner pressure rod is fixedly connected to the connecting base.

[0011] Preferably, the control component includes a cylinder, the cylinder is installed on the corresponding template, the output shaft of the cylinder is connected to a connecting rod, the end of the connecting rod is connected to a movable frame plate, and the movable frame plate is fixed to the connecting base.

[0012] By means of the above technical solution, the utility model provides a wet wipes cover processing injection molding device, which has at least the following beneficial effects:

[0013] (1) The wet wipe cover processing injection molding device is provided with a folding and unloading mechanism, and uses its internal unloading and giving way device to control the folding frame seat to rotate and contact with the unloading surface of the movable mold. The movable mold pushes the wet wipe cover after injection molding into the folding cavity through the internal pushing device. The internal pressure folding device applies internal pressure to the folding center of the wet wipe cover, and realizes batch folding and pressing of the wet wipe cover in turn. The wet wipe cover that has just been injected is automatically and batch folded in the injection molding machine, which reduces the transportation process before and after injection molding, and can also improve the overall folding processing rate of the wet wipe cover.

[0014] (2) The wet wipe cover processing injection molding device controls the position of the folding frame seat by setting a material unloading and giving way device. On the one hand, it can achieve the giving way effect during the injection molding period, and on the other hand, it can fold the wet wipe cover that has just been ejected after the injection molding is completed. The giving way action after the folding work is completed can achieve the material unloading effect of the wet wipe cover, thereby improving the injection molding and folding work of the overall wet wipe cover.

[0015] (3) The wet wipe cover processing injection molding device, by setting a merging component, uses the connecting base to control the movement of the inner pressure rod, so as to achieve the effect of the inner pressure rod obliquely squeezing the side arm plate. The side arm plate moves toward the merging cavity through the side pressure plate, and achieves subsequent squeezing of the wet wipe cover during the movement. After the two sides of the folded wet wipe cover are assisted by the two side pressure plates, the folding and merging work can be completed. The wet wipe cover that has just been injected is automatically and batch-folded in the injection molding machine, which reduces the transportation process before and after the injection molding, and can also improve the overall folding processing rate of the wet wipe cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application:

[0017] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the injection molding machine chamber in the embodiment of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the material unloading and making way device in the embodiment of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the folding frame seat in the embodiment of the utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the internal pressure folding device in the embodiment of the utility model;

[0022] Figure 6 This is a schematic diagram of the folding cavity structure in the embodiment of the utility model;

[0023] Figure 7 It is a schematic diagram of the control component structure in an embodiment of the utility model.

[0024] In the figure: 1. Injection molding machine chamber; 2. Folding unloading mechanism; 21. Unloading and giving way device; 211. Motor; 212. Rotating rod; 213. Arm rod; 214. Corresponding template; 22. Folding frame seat; 23. Folding cavity; 24. Internal pressure folding device; 241. Connecting base; 242. Rotating shaft; 243. One-way card seat; 244. Inclined card block; 245. Passive plate; 246. Block; 247. Merging assembly; 2471. Side pressure plate; 2472. Side arm plate; 2473. Internal pressure rod; 248. Control assembly; 2481. Cylinder; 2482. Connecting rod; 2483. Moving frame plate. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-Figure 7 , the technical solution provided by the utility model:

[0027] A wet wipe cover processing injection molding device comprises an injection molding machine chamber 1, wherein a folding and blanking mechanism 2 is arranged in the injection molding machine chamber 1, and the folding and blanking mechanism 2 is located between a fixed mold and a movable mold, the folding and blanking mechanism 2 comprises a blanking and giving way device 21 which flips under the driving of an external force, and a folding frame seat 22 which is installed on the blanking and giving way device 21 and is vertically or parallel to the blanking surface of the movable mold under the driving of the blanking and giving way device 21, a folding cavity 23 for accommodating the wet wipe cover is provided inside the folding frame seat 22, the folding cavity 23 comprises a connected guide cavity and a merging cavity, the guide cavity is connected to the merging cavity, the guide cavity is located in the outer area of ​​the folding cavity 23, the merging cavity is located in the inner area of ​​the folding cavity 23, and the merging cavity is located at the center line of the guide cavity, and is distributed in a rectangular parallelepiped state, the guide cavity is used to tilt and guide the wet wipe cover during folding, and the two inner side surfaces of the guide cavity are in an inclined state, and an internal pressure folding device 24 for folding the wet wipe cover in the folding cavity 23 is arranged on the folding frame seat 22.

[0028] In this embodiment, the internal pressure folding device 24 includes a connecting base 241, a stop block 246, a merging component 247 for merging and folding the wet wipe cover in a semi-folded state in the merging chamber, and a control component 248 for controlling the moving position of the connecting base 241. The connecting base 241 is slidably connected to the folding frame seat 22, and the interior of the connecting base 241 is elastically connected to a rotating shaft 242 through a torsion spring. The torsion spring elastically positions the rotating shaft 242 to provide it with an elastically rotatable function and a reset power after rotation. A one-way clamping seat 243 for unidirectional movement of the wet wipe cover is fixedly connected to the rotating shaft 242, and an inclined clamping block 244 is elastically connected to the interior of the one-way clamping seat 243 through a spring. The bottom surface of the inclined clamping block 244 on one side close to the moving mold is set to an inclined state. When the movable mold is used to eject the wet wipe cover, the wet wipe cover automatically squeezes the inclined surface of the inclined clamping block 244 to make it move out of place, and the rotating shaft Both ends of the connecting base 241 are fixedly connected with a passive plate 245, and the passive plate 245 drives the one-way clamping seat 243 to rotate by the extrusion force of the contact with the stop block 246 during the movement of the connecting base 241. The stop block 246 is fixed on the folding frame seat 22. The material discharge clearance device 21 controls the folding frame seat 22 to rotate, and the folding frame seat 22 contacts the material discharge surface of the movable mold, that is, the folding frame seat 22 and the material discharge surface of the movable mold are in a parallel state. The movable mold pushes the wet wipe cover after injection molding into the folding cavity 23 through the internal pushing device, and the internal pressure folding device 24 performs internal pressure on the folding center of the wet wipe cover, and realizes batch folding and pressing of the wet wipe cover in turn, and performs automatic and batch folding of the wet wipe cover just after injection molding in the injection molding machine, which reduces the transportation process before and after injection molding, and can also improve the overall folding processing rate of the wet wipe cover.

[0029] Furthermore, the material unloading and giving way device 21 includes a motor 211, which is installed inside the injection molding machine chamber 1. The output shaft of the motor 211 is connected to a rotating rod 212, and an arm 213 is connected to the rotating rod 212. The end of the arm 213 is connected to the corresponding template 214. The end of the rotating rod 212 away from the motor 211 is rotatably connected to the injection molding machine chamber 1, and the surface of the corresponding template 214 is fixedly connected to the surface of the folding frame seat 22. The material unloading and giving way device 21 controls the position of the folding frame seat 22. On the one hand, it can achieve the effect of giving way during the injection molding, and on the other hand, it can fold the wet wipes cover that has just been ejected after the injection molding is completed, and the giving way action after the folding work is completed can achieve the material unloading effect of the wet wipes cover, and improve the injection molding and folding work of the overall wet wipes cover.

[0030] Furthermore, the merging assembly 247 includes a side pressure plate 2471, a side arm plate 2472 and an inner pressure rod 2473. Figure 6As shown, the number of the side pressure plates 2471 and the side arm plates 2472 are both set to two, and are symmetrically distributed with the center line of the merging cavity as the symmetry axis, so as to perform squeezing work on both sides of the wet wipes cover in a semi-folded state. The surfaces of the side pressure plates 2471 and the side arm plates 2472 are both slidably connected inside the folding frame seat 22, the side pressure plates 2471 and the side arm plates 2472 are fixed, and the end of the inner pressure rod 2473 is fixedly connected to the connecting base 241. By moving the connecting base 241 in different positions to control the movement of the inner pressure rod 2473, the inner pressure rod 2473 can be used to obliquely squeeze the side arm plate 2472. The side arm plate 2472 moves toward the merging cavity through the side pressure plate 2471, and the subsequent squeezing of the wet wipe cover is achieved during the movement. The two sides of the folded wet wipe cover are assisted by the two side pressure plates 2471 to achieve the effect of completing the folding and merging work. The wet wipe cover that has just been injected is automatically and batch-folded in the injection molding machine, which reduces the transportation process before and after the injection molding, and can also improve the overall folding processing rate of the wet wipe cover.

[0031] It is worth noting that the control assembly 248 includes a cylinder 2481, which is mounted on the corresponding template 214. The output shaft of the cylinder 2481 is connected to the connecting rod 2482. The cylinder 2481 is used to control the movement of the connecting rod 2482. Any existing power element that can realize the movement of the connecting rod 2482 can be replaced. The end of the connecting rod 2482 is connected to a moving frame plate 2483, and the moving frame plate 2483 is fixed to the connecting base 241. Figure 3 As shown, there are multiple folding frame seats 22 arrayed on the corresponding template 214, and their number and position correspond to the wet wipes cover mold cavity on the movable mold, and the cylinder 2481 controls the movable frame plate 2483 through the connecting rod 2482, which can achieve the effect of synchronous movement of the connecting bases 241 on the multiple folding frame seats 22, and then realize batch folding work, thereby improving the overall folding processing rate of the wet wipes cover.

[0032] When the wet wipes cover processing injection molding device of the utility model is in use, the movable mold in the injection molding machine chamber 1 is molded with the fixed mold for injection molding, and the mold is separated after the molded wet wipes cover is cooled and formed. After the movable mold is away from the fixed mold, the molded wet wipes cover is embedded in the mold cavity of the movable mold. At this time, the rotating rod 212 is driven to rotate ninety degrees by the control motor 211. When the rotating rod 212 is in the initial state, its upper arm rod 213 drives the corresponding template 214 to be stored in the top of the injection molding machine chamber 1. After it rotates ninety degrees, the rotating rod 212 drives the corresponding template 214 to move as a whole through the arm rod 213 to a state parallel to the movable mold, that is, Figure 2In the state shown in , at this time, the multiple folding frame seats 22 arrayed on the corresponding template 214 correspond to the wet wipe cover mold cavity on the movable mold, and the movable mold pushes the formed wet wipe cover into the guide cavity through the internal pushing device. When the wet wipe cover is pushed, the surface of the wet wipe cover will contact and squeeze the inclined surface block 244. The inclined surface block 244 is affected by the inclined surface on it. The force of the wet wipe cover moving into the guide cavity will drive the inclined surface block 244 to elastically give way, and the inclined surface block 244 will shrink in the one-way seat 243. Moreover, when the wet wipe cover continues to be pushed in, the inclined surface block 244 will reset and move through elastic force after losing the contact effect with the surface of the wet wipe cover, and the inclined surface block 244 will extend out of the one-way seat 243. After ejecting the wet wipes cover, the ejection device will perform a reset operation. At this time, the wet wipes cover is stuck in the guide cavity for fixation. At this time, the cylinder 2481 is controlled to work, and the output shaft of the cylinder 2481 drives the multiple connecting bases 241 on the movable frame plate 2483 to move synchronously through the connecting rod 2482. When moving, the multiple connecting bases 241 use the elastic force of the torsion spring to drive the one-way clamping seat 243 on the rotating shaft 242 to move toward the corresponding template 214 as a whole. The one-way clamping seat 243 squeezes the central area of ​​the wet wipes cover through the plane of the inclined clamping block 244. On the one hand, the center line of the wet wipes cover is squeezed inward by the inclined clamping block 244, and on the other hand, it is restricted by the space of the guide cavity, and corresponding folding work will be performed. When the inclined clamping block 244 drives the central area of ​​the wet wipes cover to move into the merging cavity, the wet wipes cover that was originally flat presents a small-angle triangular state in the merging cavity. At this time, the connecting base 241 that continues to move will drive the rotating The passive plate 245 on the shaft 242 moves to contact the block 246. Affected by the fixed state of the block 246, the passive plate 245 will drive the rotating shaft 242 to break through the elastic force of the torsion spring and rotate in the connecting base 241 to make way. The rotating shaft 242 in the making way state drives the inclined block 244 through the one-way clamping seat 243 to gradually separate from the folding and merging area of ​​the wet wipe cover. After waiting for complete separation, the connecting base 241 that continues to move will obliquely squeeze the side arm plate 2472 through the internal pressure rod 2473. The side arm plate 2472 moves toward the merging cavity through the side pressure plate 2471 and realizes subsequent squeezing of the wet wipe cover during the movement. After the two sides of the folded wet wipe cover are assisted by the two side pressure plates 2471, the folding and merging work is completed. The wet wipe cover that has just been injected is automatically and batch folded in the injection molding machine, which reduces the transportation process before and after injection molding, and can also improve the overall folding processing rate of the wet wipe cover.

[0033] After the folding work is completed, the control cylinder 2481 is reset. At this time, the control motor 211 is reset. The motor 211 drives the corresponding template 214 on the arm 213 to rotate upward through the rotating rod 212 on the output shaft. The corresponding template 214 rotates upward toward the fixed mold as a whole. During the rotation, the output shaft of the control cylinder 2481 continues to extend outward, and the connecting rod 2482 gradually moves away from the folding frame seat 22 as a whole through the moving frame plate 2483, that is, the connecting base 241 and the one-way clamping seat 243 gradually move away from the folding frame seat 22 as a whole. During the distance, the inclined block 244 gradually loses the positioning effect on the folded and merged wet wipes cover in the merging cavity. After the wet wipes cover rotates with the moving frame plate 2483, it slides downward according to the gravity to realize automatic unloading.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wet wipes cover processing injection molding device, comprising an injection molding machine chamber (1), characterized in that: A folding and unloading mechanism (2) is arranged in the injection molding machine chamber (1), and the folding and unloading mechanism (2) is located between the fixed mold and the movable mold. The folding and unloading mechanism (2) includes a unloading and displacing device (21) that flips under the drive of an external force, and a folding frame seat (22) that is installed on the unloading and displacing device (21) and is vertical or parallel to the unloading surface of the movable mold under the drive of the unloading and displacing device (21). A folding cavity (23) for accommodating a wet wipe cover is provided inside the folding frame seat (22), and an internal pressure folding device (24) for folding the wet wipe cover in the folding cavity (23) is arranged on the folding frame seat (22).

2. A wet wipes cover processing injection molding device according to claim 1, characterized in that: The folding cavity (23) comprises a communicating guide cavity and a merging cavity, wherein the merging cavity is located at the center line of the guide cavity, and two inner side surfaces of the guide cavity are in an inclined state.

3. A wet wipes cover processing injection molding device according to claim 2, characterized in that: The internal pressure folding device (24) comprises a connecting base (241), a stop block (246), a merging component (247) for merging and folding the wet wipe cover in a semi-folded state in the merging chamber, and a control component (248) for controlling the moving position of the connecting base (241). The connecting base (241) is slidably connected to the folding frame seat (22). The interior of the connecting base (241) is elastically connected to a rotating shaft (242) via a torsion spring. The rotating shaft (242) is fixedly connected to a wet wipe cover. A one-way card seat (243) for one-way movement and locking, wherein the interior of the one-way card seat (243) is elastically connected to an inclined card block (244) via a spring, and the rotating shaft (242) passes through the connecting base (241) and is fixedly connected to passive plates (245) at both ends, and the passive plate (245) drives the one-way card seat (243) to rotate by utilizing the extrusion force of contact with a stop block (246) during the movement of the connecting base (241), and the stop block (246) is fixed on the folding frame seat (22).

4. A wet wipes cover processing injection molding device according to claim 3, characterized in that: The material unloading and displacing device (21) is connected to a driving motor (211) serving as a turning power, the motor (211) being installed inside the injection molding machine chamber (1), the material unloading and displacing device (21) comprising a rotating rod (212) installed on the output shaft of the motor (211), the rotating rod (212) being connected to an arm (213), the end of the arm (213) being connected to a corresponding template (214), the end of the rotating rod (212) away from the motor (211) being rotatably connected inside the injection molding machine chamber (1), the surface of the corresponding template (214) being fixedly connected to the surface of the folding frame seat (22).

5. The wet wipes cover processing injection molding device according to claim 3, characterized in that: The merging assembly (247) includes a side pressure plate (2471), a side arm plate (2472) and an inner pressure rod (2473), the surfaces of the side pressure plate (2471) and the side arm plate (2472) are both slidably connected inside the folding frame seat (22), the side pressure plate (2471) is fixed to the side arm plate (2472), and the end of the inner pressure rod (2473) is fixedly connected to the connecting base (241).

6. A wet wipes cover processing injection molding device according to claim 4, characterized in that: The control component (248) includes a cylinder (2481), and the cylinder (2481) is installed on the corresponding template (214). The output shaft of the cylinder (2481) is connected to a connecting rod (2482), and the end of the connecting rod (2482) is connected to a movable frame plate (2483), and the movable frame plate (2483) is fixed to the connecting base (241).

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