Device for pasting full label in mold of injection blow molding machine
Through the coordination of the lifting cylinder and the advance and retreat cylinder, the problem of bottom blocking hindering the placement of the full label is solved, the smooth placement of the full label and the guarantee of the hollow forming quality are achieved, and the structure of the injection blower is simplified.
Patent Information
- Application Number
- CN202422396608.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-08-12
- Estimated Expiration
- 2034-09-30
AI Technical Summary
In injection blowing machines, it is difficult for the prior art to place the full label in the cavity when the mold is fixed and the die is closed, because the bottom blockage hinders the placement of the full label and affects the hollow forming quality.
A fully labeled label device is designed in the injection blower mold. Through the cooperation of the lifting cylinder and the advance and retreat cylinder, the bottom plug can be transferred and sealed, ensuring that the full label can be placed smoothly and a good seal is formed in the cavity.
It realizes the smooth placement of the full label and the guarantee of hollow molding quality, without the need for an additional limiting mechanism, simplifying the structure.
Smart Images
Figure CN223211891U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of injection-blowing machines, in particular to a full-label in-mold labeling device for injection-blowing machines. Background Art
[0002] When producing blow-molded products such as PP, PE, and PET, it is necessary to place the label in the mold cavity. When the fixed mold and the movable mold are closed for blow molding, the label will automatically adhere to the molded product under high temperature and high pressure. In this way, labeling can be completed at the same time as hollow molding, which improves efficiency. Currently, labels on the market are generally divided into half-label labels and full-label labels. When attaching a half-label label, it is only necessary to place the half-label label in the lower half of the movable mold located below by a robot when the fixed mold and the movable mold are in the open state, and then hollow molding can be performed after the mold is closed. The bottom plug on the cavity will not affect the placement of the half-label label. When attaching a full-label label, it is necessary to place the full-label label in the cavity when the fixed mold and the movable mold are closed, and adhere it to the four walls of the cavity. The bottom plug hinders the placement of the full-label label, which requires the addition of a device that can transfer the bottom plug. Utility Model Content
[0003] The utility model aims to provide a full-label in-mold labeling device for an injection-blowing machine, which can shift a bottom plug so that the bottom plug does not interfere with the placement of the full-label.
[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: an injection blow molding machine mold in-mold full-labeling device, including: a fixed table, a fixed mold and a movable mold, the fixed mold is fixed on the fixed table, and the fixed mold and the movable mold are combined to form a cavity with an open left end when the mold is closed, a lifting cylinder is provided on the left side of the fixed table, a lifting seat is connected to the piston shaft of the lifting cylinder, two advance and retreat oil cylinders are horizontally arranged in front and behind the lifting seat, connecting plates are provided on the piston shafts of the two advance and retreat oil cylinders, a slide plate is provided between the two connecting plates, the slide plate is slidably engaged with the lifting seat, and a bottom plug that can seal with the opening of the cavity is provided on the slide plate.
[0005] Furthermore, the aforementioned in-mold full-labeling device of the injection blow molding machine, wherein the connection structure between the lifting seat and the fixed platform is: two fixed plates are extended outward on the left side of the fixed platform, two guide shafts are vertically arranged on each fixed plate, the four guide shafts are connected to the same positioning plate, the lifting cylinder is fixed at the center of the positioning plate, the lifting seat is slidably set on the four guide shafts and is connected to the piston shaft of the lifting cylinder, and the distance between the lifting seat and the fixed plate is the same as the distance between the central axis of the bottom plug and the central axis of the cavity.
[0006] Furthermore, in the aforementioned injection blow molding machine in-mold full-label labeling device, the two advance and retreat cylinders are symmetrically arranged with the piston axis of the lifting cylinder as the center, and two long avoidance holes are symmetrically arranged front and back on the lifting seat, and the connecting plates on each advance and retreat cylinder pass downward through the long avoidance holes on the corresponding side and are connected to the slide.
[0007] Furthermore, in the aforementioned injection blow molding machine in-mold full-labeling device, the slide is located between two fixed plates, two dovetail sliders are respectively provided on the front and rear sides of the slide, and a dovetail slide rail is respectively provided on the front and rear sides of the bottom wall of the lifting seat, and the two dovetail sliders on each side of the slide are respectively slidably engaged with the dovetail guide rails on the same side.
[0008] Furthermore, in the aforementioned injection blow molding machine in-mold full labeling device, a guide slope is provided on the inner wall of the left end of the opening of the cavity, and a bottle bottom forming groove is provided on the right end wall of the bottom plug.
[0009] Furthermore, in the aforementioned injection blow molding machine in-mold full-labeling device, the connection structure between the bottom plug and the slide plate is as follows: a support plate is vertically arranged on the central bottom wall of the slide plate, and a connecting flange is horizontally arranged on the right side wall of the support plate, and the bottom plug is fixed to the connecting flange by bolts.
[0010] The advantages of the present invention are that: when it is necessary to attach a full-label label, the lifting cylinder cooperates with the advance and retreat oil cylinder to transfer the bottom plug from the cavity. After the manipulator places the full-label label in the cavity, the lifting cylinder cooperates with the advance and retreat oil cylinder to seal the bottom plug on the cavity, which neither hinders the placement of the full-label label nor ensures the hollow molding quality of the product; the distance between the lifting seat and the fixed plate is set to be the same as the distance between the central axis of the bottom plug and the central axis of the cavity, and the stroke of the bottom plug is controlled by the limiting distance between the lifting seat and the fixed plate, so as to ensure that the bottom plug can achieve a good sealing effect with the cavity, and no additional limiting mechanism is required, which simplifies the structure. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 The utility model is a schematic cross-sectional view of the in-mold full-labeling device of the injection-blowing machine.
[0012] Figure 2 It is a structural schematic diagram of the left-side view of the in-mold full-labeling device of the injection-blow molding machine described in the utility model.
[0013] Figure 3 The utility model is a schematic structural diagram of the full-label in-mold labeling device of the injection blow molding machine when viewed from above.
[0014] Figure 4 This is a schematic diagram of the structure when the lifting cylinder drives the bottom plug to be flush with the cavity.
[0015] Figure 5It is a structural diagram of the bottom plugging on the cavity. DETAILED DESCRIPTION
[0016] The technical solution of the present invention will be further described below in conjunction with the accompanying drawings and preferred embodiments.
[0017] like Figures 1 to 3As shown, the in-mold full-labeling device of the injection-blowing machine described in the utility model includes: a fixed table 1, a fixed mold 11 and a movable mold 12. The fixed mold 11 is fixed on the fixed table 1. When the fixed mold 11 and the movable mold 12 are closed, they form a cavity 13 with an open left end. A guide slope is provided on the inner wall of the left end of the open cavity 13. By providing the guide slope, it is convenient for the subsequent bottom plug 34 to extend into the cavity 13. Two fixed plates 14 are provided extending outward from the left side of the fixed table 1. Two guide shafts 141 are vertically provided on each fixed plate 14. The four guide shafts 141 are connected to the same positioning plate 15. A lifting cylinder 16 is vertically provided at the center of the positioning plate 15. A lifting seat 2 is connected to the piston shaft of the lifting cylinder 16. The lifting seat 2 is slidably provided on four On the guide shaft 141, there are two forward and backward oil cylinders 21 horizontally arranged on the front and back of the lifting seat 2. The two forward and backward oil cylinders 21 are symmetrically arranged with the piston axis of the lifting cylinder 16 as the center. A connecting plate 22 is provided on the piston axis of the two forward and backward oil cylinders 21. Two long avoidance holes 23 are symmetrically provided on the front and back of the lifting seat 2. The connecting plates 22 on the two forward and backward oil cylinders 21 pass downward through the long avoidance holes 23 on the corresponding sides and are connected to the same slide 3. The simultaneous action of the two symmetrically arranged forward and backward oil cylinders 21 can apply the same driving force to the two ends of the slide 3, thereby improving the driving force on the slide 3. The slide 3 is located between the two fixed plates 14, and two dovetail sliders 31 are respectively provided on the front and rear sides of the slide 3. A dovetail slider 31 is respectively provided on the front and rear sides of the bottom wall of the lifting seat 2. The dovetail slide rail 24, the two dovetail sliders 31 on each side of the slide plate 3 are respectively slidably engaged with the dovetail guide rail 24 on the same side, and the slide plate 3 is connected to the lifting seat 2 through the sliding engagement structure between the dovetail slider 31 and the dovetail slide rail 24, which not only improves the stability of the sliding connection between the slide plate 3 and the lifting seat 2, but also plays a guiding role to prevent the slide plate 3 from deflecting during movement. A support plate 32 is vertically provided on the central bottom wall of the slide plate 3, and a connecting flange 33 is horizontally provided on the right side wall of the support plate 32. A bottom plug 34 that can seal with the opening of the cavity 13 is connected to the connecting flange 33 by bolts, and a bottle bottom molding groove is provided on the right end wall of the bottom plug 34. When it is necessary to produce products of different specifications, the fixed mold 11 and the movable mold 12 The specifications of the cavity 13 will also be different, so you only need to connect the matching bottom plug 34 to the connecting flange 33 by bolts, which is convenient and quick. When the bottom plug 34 is sealed in the cavity 13, the two symmetrically arranged advance and retreat cylinders 21 can apply a balanced and stable locking force to the bottom plug 34, thereby improving the sealing effect between the bottom plug 34 and the cavity 13. The distance between the lifting seat 2 and the fixed plate 14 is the same as the distance between the central axis of the bottom plug 34 and the central axis of the cavity 13. When the lifting cylinder 16 drives the lifting seat 2 to descend and rest against the two fixed plates 14, the central axis of the bottom plug 34 coincides with the central axis of the cavity 13. The advance and retreat cylinder 21 can ensure that the bottom plug 34 and the cavity 13 have a good sealing fit when driving the bottom plug 34 to move horizontally.The fixing plate 14 not only supports the guide shaft 141, but also limits the descent of the bottom plug 34.
[0018] When a full label needs to be affixed, the two advance and retreat cylinders 21 simultaneously drive the slide 3 with the bottom plug 34 to move to the left away from the fixed mold 11 and the movable mold 12. The fixed mold 11 and the movable mold 12 are combined to form a cavity 13 with an open mouth. Then the lifting cylinder 16 drives the lifting seat 2 with the bottom plug 34 to rise to avoid the cavity 13. The manipulator places the full label into the cavity 13. After the placement is completed, the manipulator withdraws, and the lifting cylinder 16 drives the lifting seat 2 with the bottom plug 34 to descend. When the lifting seat 2 rests on the two fixed plates 14, the bottom plug 34 is flush with the cavity 13. Figure 4 As shown, the two forward and backward oil cylinders 21 then simultaneously drive the slide 3 with the bottom plug 34 to move to the right until the bottom plug 34 is sealed on the cavity 13, as shown in FIG. Figure 5 As shown, the two advancing and retreating oil cylinders 21 simultaneously exert thrust to increase the locking force between the bottom plug 34 and the cavity 13. During hollow molding, the bottom plug 34 will not be flushed open and affect the molding quality of the product.
[0019] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents. Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be included in the scope of protection of the claims of the present invention.
Claims
1. Injection blow molding machine in-mold full labeling device, including: The fixed table, the fixed mold and the movable mold, the fixed mold is fixed on the fixed table, and is characterized in that: when the fixed mold and the movable mold are closed, they form a cavity with an open left end, a lifting cylinder is provided on the left side of the fixed table, and a lifting seat is connected to the piston shaft of the lifting cylinder, and two advance and retreat oil cylinders are horizontally arranged in front and behind the lifting seat, and connecting plates are provided on the piston shafts of the two advance and retreat oil cylinders, and a slide plate is provided between the two connecting plates, and the slide plate is slidably engaged with the lifting seat, and a bottom plug that can seal with the opening of the cavity is provided on the slide plate.
2. The in-mold full-label labeling device for injection blow molding machine according to claim 1, characterized in that: The connection structure between the lifting seat and the fixed platform is as follows: two fixed plates are extended outward on the left side of the fixed platform, two guide shafts are vertically arranged on each fixed plate, the four guide shafts are connected to the same positioning plate, the lifting cylinder is fixed at the center of the positioning plate, the lifting seat is slidably set on the four guide shafts and is connected to the piston shaft of the lifting cylinder, and the distance between the lifting seat and the fixed plate is the same as the distance between the central axis of the bottom plug and the central axis of the cavity.
3. The in-mold full-labeling device for injection blow molding machine according to claim 2, characterized in that: The two forward and backward oil cylinders are symmetrically arranged with the piston axis of the lifting cylinder as the center. Two long avoidance holes are symmetrically arranged front and back on the lifting seat. The connecting plate on each forward and backward oil cylinder passes downward through the long avoidance hole on the corresponding side and is connected to the slide.
4. The in-mold full-labeling device for injection blow molding machine according to claim 2, characterized in that: The slide is located between the two fixed plates, and two dovetail sliders are respectively provided on the front and rear sides of the slide. A dovetail slide rail is respectively provided on the front and rear sides of the bottom wall of the lifting seat. The two dovetail sliders on each side of the slide are respectively slidably engaged with the dovetail guide rail on the same side.
5. The in-mold full-labeling device for injection blow molding machine according to claim 1, characterized in that: A guide slope is arranged on the inner wall of the left end of the opening of the cavity, and a bottle bottom forming groove is arranged on the right end wall of the bottom plug.
6. The in-mold full-labeling device for injection blow molding machine according to claim 1, characterized in that: The connection structure between the bottom plug and the slide plate is as follows: a support plate is vertically arranged on the central bottom wall of the slide plate, a connecting flange is horizontally arranged on the right side wall of the support plate, and the bottom plug is fixed to the connecting flange by bolts.