A mold opening device and method for box products with a slider and an oblique push structure

Abstract

The present invention provides a mold opening device for box products with a slider with an oblique push structure and a method thereof, the mold opening device comprises a large slider, an inclined slider and a power mechanism, the power mechanism is provided at the front end of the large slider, the inclined slider is provided in the middle of the large slider, the inclined surface of the inclined slider is above the inclined surface is an inclined surface pressure block integrally formed with the large slider, the inclined surface pressure block is provided with a positioning pin, the inclined slider below the positioning pin is provided with a first groove, the slider insert is fixedly connected below the inclined slider, a large slider guide block that cooperates with the slider insert is provided below the slider insert, and a limit block is provided on the large slider guide block; the production method of the mold opening device includes before mold opening, mold opening and mold closing; the first groove and the positioning pin enable the inclined slider to move outward with the large slider; the inclined surface of the inclined pressure block and the inclined surface of the inclined slider are matched and connected, so that when the inclined pressure block moves outward with the large slider, the inclined slider is forced to move upward and simultaneously performs an upward mold opening operation.

Description

Technical Field

[0001] The present invention relates to the technical field of mold opening, in particular to a mold opening device for box products with a slider and an oblique push structure and a method thereof. Background Art

[0002] Turnover boxes, also known as logistics boxes, are widely used in machinery, automobiles, home appliances, light industry, electronics and other industries. They are acid-resistant, alkali-resistant, oil-resistant, non-toxic and odorless. They can be used to hold food, etc. They are easy to clean, have convenient parts turnover, are neatly stacked, and are easy to manage. Their reasonable design and excellent quality make them suitable for transportation, distribution, storage, circulation processing and other links in factory logistics.

[0003] During the production of turnover boxes, the mold must be opened after injection molding is completed. Currently, some turnover box products have undercuts on the frame that have different opening directions within the same range, and the opening directions are at 90-degree angles to each other, so it is not possible to use only one slider to open the mold. Moreover, the undercut is on the side of the product, so it is not possible to use a slanted top to open the mold or an inner slider to demold. Even if an inner slider can be used for demolding, the processing cost of the inner slider is high, and the processing is complicated, the mold installation is difficult, and the cost is high. Summary of the Invention

[0004] In order to solve the problem that the sides of the turnover box production mold need to be opened at a 90-degree angle to each other, the present invention provides a box product mold opening device and method with a slider and an oblique push structure.

[0005] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0006] The first object of the present invention is to provide a box product mold opening device with a slider with an oblique push structure, comprising a large slider, an inclined slider and a power mechanism, the front end of the large slider is provided with the power mechanism, the middle of the large slider is provided with the inclined slider, the upper part of the inclined surface of the inclined slider is an inclined pressure block integrally formed with the large slider, the inclined pressure block is provided with a positioning pin, the inclined slider below the positioning pin is provided with a first groove, the positioning pin moves inside the first groove, the slider insert is fixedly connected to the lower part of the inclined slider, the lower end surface of the slider insert is provided with a second groove, the two sides of the second groove are respectively a first protrusion and a second protrusion, a large slider guide block cooperating with the slider insert is provided below the slider insert, the upper end surface of the large slider guide block is provided with a third groove and a fourth groove, the two sides of the third groove are respectively a third protrusion and a fourth protrusion, and a limit block is provided on the third protrusion.

[0007] Furthermore, the power mechanism includes two connecting blocks, a connecting beam and a cylinder, one end of the two connecting blocks is welded to the large slider, the other end of the two connecting blocks is welded to the connecting beam, and the connecting beam is fixedly connected to the cylinder; the two connecting blocks are driven by the cylinder through the connecting beam, and balanced and stable power can be given to the large slider without using two cylinders, so that the large slider can perform mold opening operations smoothly and save production costs.

[0008] Furthermore, the inclined slider is fixedly connected to the slider insert by screws; the inclined slider and the slider insert are detachably connected, which facilitates the production of the inclined slider and the slider insert.

[0009] Furthermore, the first protrusion and the third groove, the second groove and the fourth protrusion, and the second protrusion and the fourth groove respectively correspond to each other one by one; the precise matching of each component enables the large slider, the inclined slider and the large slider guide block to be more accurate and fast during mold opening operations.

[0010] Furthermore, the length of the portion of the positioning pin exposed from the inclined surface pressing block is less than the minimum depth of the first groove; so that the positioning pin can move from one side to the other side inside the first groove without restriction, which is conducive to the smooth completion of the mold opening operation.

[0011] Furthermore, an end face of the limit block close to the third groove and an end face of the third protrusion close to the third groove are on the same plane and the planes are smooth and flat; so that the first protrusion is unobstructed when moving up and down in the third groove, and the first protrusion does not exceed the third groove when moving from the fourth protrusion to the third groove.

[0012] Furthermore, the large slider guide block is provided with a screw hole; when performing the mold opening operation, the large slider guide block is fixed on the lower mold, and the screw hole is provided to facilitate the fixed installation of the large slider guide block on the lower mold, thereby facilitating the mold opening operation.

[0013] A second object of the present invention is to provide a method for producing a mold opening device for box products having a slider with an oblique push structure, comprising the following steps:

[0014] (1) Before the mold is opened, the large slider guide block is fixed to the lower mold (not shown) with the screws through the screw holes. The top end of the inclined slider is against the mold baffle of the upper mold. The positioning pin is against the inside of the first groove and on the side wall near one end of the upper mold. The first protrusion is inside the third groove, and the fourth protrusion is inside the second groove.

[0015] (2) During the mold opening operation, under the operation of the oil cylinder, the large slider moves outward, and the inclined surface pressure block and the positioning pin move outward and downward under the drive of the large slider. At the same time, since the inclined surface slider is subjected to the inward and downward force from the inclined surface pressure block and the first protrusion is restricted inside the third groove, the inclined surface slider can only move vertically upward, that is, the inclined surface slider performs a vertical upward mold opening operation; when the positioning pin moves downward and presses against the other side end inside the first groove, the first protrusion has moved upward and left the constraint of the third groove. Under the traction of the positioning pin, the inclined surface slider moves outward following the large slider, and finally completes the mold opening operation;

[0016] (3) When the mold is closed, under the action of the oil cylinder, the large slider moves inward with the inclined slider and the slider insert; when the first protrusion hits the limit block, the inclined slider and the slider insert cannot continue to move inward with the large slider, but move downward until the first protrusion completely enters the third groove, and then the inclined slider and the slider insert stop moving, and the large slider and the inclined pressure block continue to move inward. When the positioning pin abuts against the inside of the first groove and on the side wall close to one end of the upper mold of the mold, the large slider and the inclined pressure block stop moving, and the mold closing operation is completed.

[0017] The beneficial effects of the present invention are as follows: the large slider guide block and the slider insert are provided, so that the inclined slider can only move upward when it is subjected to the inward and upward force from the inclined pressure block; the first groove and the positioning pin are provided, so that the inclined slider follows the large slider to move outward; the inclined surfaces of the inclined pressure block and the inclined slider are matched and connected, so that when the inclined pressure block follows the large slider to move outward, the inclined slider is forced to move upward and simultaneously performs an upward mold opening operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A top view of the mold opening operation in the present invention;

[0019] Figure 2 It is a cross-sectional schematic diagram of the mold opening operation in the present invention;

[0020] Figure 3 It is a schematic diagram of the cross-sectional structure of the present invention;

[0021] In the figure: 1. Large slider; 2. Inclined slider; 3. Inclined pressure block; 4. First groove; 5. Positioning pin; 6. Slider insert; 7. Fourth protrusion; 8. Second groove; 9. Large slider guide block; 10. Third protrusion; 11. First protrusion; 12. Screw; 13. Screw hole; 14. Third groove; 15. Cylinder; 16. Mold upper mold; 17. Mold baffle; 18. Connecting block; 19. Connecting beam; 20. Fourth groove. DETAILED DESCRIPTION

[0022] The present invention is described in detail below with reference to the accompanying drawings:

[0023] like Figure 1 、 2 As shown in Figure 3, a mold opening device for box products with a slider with an oblique push structure includes a large slider 1, an inclined slider 2 and a power mechanism. The front end of the large slider 1 is provided with a power mechanism, and the middle of the large slider 1 is provided with an inclined slider 2. Above the inclined surface of the inclined slider 2 is an inclined pressure block 3 integrally formed with the large slider 1, and the inclined pressure block 3 is provided with a positioning pin 5. The inclined slider 2 below the positioning pin 5 is provided with a first groove 4, and the positioning pin 5 moves inside the first groove 4. A slider insert 6 is fixedly connected to the bottom of the inclined slider 2, and a second groove 8 is provided on the lower end surface of the slider insert 6. The first and second protrusions 11 and 11 are on both sides of the second groove 8 respectively. A large slider 1 guide block cooperating with the slider insert 6 is provided below the slider insert 6, and a third groove 14 and a fourth groove 20 are provided on the upper end surface of the large slider 1 guide block. The third groove 14 is flanked by a third protrusion 10 and a fourth protrusion 7 respectively, and a limit block is provided on the third protrusion 10.

[0024] The power mechanism includes two connecting blocks 18, a connecting beam 19 and an oil cylinder 15. One end of the two connecting blocks 18 is welded to the large slider 1, and the other end of the two connecting blocks 18 is welded to the connecting beam 19. The connecting beam 19 is fixedly connected to the oil cylinder 15. The two connecting blocks 18 are driven by the oil cylinder 15 through the connecting beam 19. Without using the two oil cylinders 15, the large slider 1 can be given balanced and stable power, so that the large slider 1 can smoothly perform the mold opening operation and save production costs.

[0025] The inclined slider 2 and the slider insert 6 are fixedly connected by screws 12; the inclined slider 2 and the slider insert 6 are detachably connected, which facilitates the production of the inclined slider 2 and the slider insert 6.

[0026] The first protrusion 11 and the third groove 14, the second groove 8 and the fourth protrusion 7, and the second protrusion and the fourth groove 20 respectively correspond to each other one by one; the precise matching of each component makes the large slider 1, the inclined slider 2 and the guide block of the large slider 1 more accurate and fast during the mold opening operation.

[0027] The length of the portion of the positioning pin 5 exposed from the inclined surface pressing block 3 is less than the minimum depth of the first groove 4, so that the positioning pin 5 can move from one side to the other side of the first groove 4 without restriction, which is conducive to the smooth completion of the mold opening operation.

[0028] One end face of the limit block close to the third groove 14 and one end face of the third protrusion 10 close to the third groove 14 are on the same plane and the plane is smooth and flat; so that the first protrusion 11 is unobstructed when moving up and down in the third groove 14, so that the first protrusion 11 does not exceed the third groove 14 when moving from the fourth protrusion 7 to the third groove 14.

[0029] The guide block of the large slider 1 is provided with 12 screw holes; when the mold opening operation is performed, the guide block of the large slider 1 is fixed on the lower mold. The 12 screw holes are provided to facilitate the fixed installation of the guide block of the large slider 1 on the lower mold, thereby facilitating the mold opening operation.

[0030] A method for producing a mold opening device for box products having a slider with an oblique push structure, comprising the following steps:

[0031] like Figure 1 、 2 As shown in Figure 3, before the mold is opened, the large slider guide block 9 is fixed to the lower mold (not shown) with screws 12 through screw holes 13. The top of the inclined slider 2 is against the mold baffle 17 of the upper mold 16. The positioning pin 5 is against the inside of the first groove 4 and on the side wall close to one end of the upper mold 16. The first protrusion 11 is inside the third groove 14, and the fourth protrusion 7 is inside the second groove 8.

[0032] During the mold opening operation, under the operation of the oil cylinder 15, the large slider 1 moves outward, and the inclined surface pressing block 3 and the positioning pin 5 move outward and downward under the drive of the large slider 1. At the same time, since the inclined surface slider 2 is subjected to the inward and downward force from the inclined surface pressing block 3 and the first protrusion 11 is restricted inside the third groove 14, the inclined surface slider 2 can only move vertically upward, that is, the inclined surface slider 2 performs the vertical upward mold opening operation; when the positioning pin 5 moves downward and presses against the other side end of the first groove 4, the first protrusion 11 has moved upward and left the constraint of the third groove 14. Under the traction of the positioning pin 5, the inclined surface slider 2 moves outward following the large slider 1, and finally completes the mold opening operation;

[0033] When closing the mold, under the action of the oil cylinder 15, the large slider 1 moves inward with the inclined slider 2 and the slider insert 6; when the first protrusion 11 hits the limit block, the inclined slider 2 and the slider insert 6 cannot continue to move inward with the large slider 1, but move downward until the first protrusion 11 completely enters the third groove 14, the inclined slider 2 and the slider insert 6 stop moving, and the large slider 1 and the inclined surface pressure block 3 continue to move inward. When the positioning pin 5 rests against the inside of the first groove 4 and on the side wall close to one end of the upper mold 16 of the mold, the large slider 1 and the inclined surface pressure block 3 stop moving, and the mold closing operation is completed.

[0034] Compared with the prior art, the present invention has the following beneficial effects:

[0035] A guide block and a slider insert 6 are provided for the large slider 1, so that the inclined slider 2 can only move upward when it is subjected to an inward and upward force from the inclined pressure block 3; a first groove 4 and a positioning pin 5 are provided, so that the inclined slider 2 moves outward following the large slider 1; the inclined surfaces of the inclined pressure block 3 and the inclined slider 2 are matched and connected, so that when the inclined pressure block 3 moves outward following the large slider 1, the inclined slider 2 is forced to move upward and simultaneously performs an upward mold opening operation.

[0036] The above are only preferred embodiments of the present invention and are not intended to limit the scope of patent protection of the present invention. Any equivalent structural transformations made using the contents of the present invention's description and drawings, directly or indirectly applied to other related technical fields, are also included in the scope of protection of the present invention.

Claims

1. A mold opening device for box products with a slider and an oblique push structure, comprising a large slider, an inclined slider and a power mechanism, characterized in that: The power mechanism is provided at the front end of the large slider, and the inclined slider is provided in the middle of the interior of the large slider. Above the inclined surface of the inclined slider is an inclined pressure block integrally formed with the large slider, and the inclined pressure block is provided with a positioning pin, and the inclined slider below the positioning pin is provided with a first groove, and a slider insert is fixedly connected to the bottom of the inclined slider, and a second groove is provided on the lower end surface of the slider insert, and the first and second protrusions are respectively on both sides of the second groove, and a large slider guide block cooperating with the slider insert is provided below the slider insert, and a third groove and a fourth groove are provided on the upper end surface of the large slider guide block, and a third protrusion and a fourth protrusion are respectively on both sides of the third groove, and a limit block is provided on the third protrusion.

2. A mold opening device for box products with a slider and an oblique push structure according to claim 1, characterized in that: The power mechanism includes two connecting blocks, a connecting beam and an oil cylinder. One end of the two connecting blocks is welded to the large slider, and the other end of the two connecting blocks is welded to the connecting beam. The connecting beam is fixedly connected to the oil cylinder.

3. The mold opening device for box products with a slider and an oblique push structure according to claim 1 is characterized in that: The inclined slider is fixedly connected to the slider insert by screws.

4. A mold opening device for box products with a slider and an oblique push structure according to claim 1, characterized in that: The first protrusion and the third groove, the second groove and the fourth protrusion, and the second protrusion and the fourth groove are matched in a one-to-one correspondence.

5. The mold opening device for box products with a slider and an oblique push structure according to claim 1 is characterized in that: The length of the portion of the positioning pin exposed from the inclined surface pressing block is less than the minimum depth of the first groove.

6. The mold opening device for box products with a slider and an oblique push structure according to claim 1, characterized in that: An end surface of the limiting block close to the third groove and an end surface of the third protrusion close to the third groove are on the same plane, and the planes are smooth and flat.

7. The mold opening device for box products with a slider and an oblique push structure according to claim 1 is characterized in that: The large sliding block guide block is provided with screw holes.

8. The method for producing a mold opening device for box products with a slider and an oblique push structure according to claim 1, characterized in that: The steps include: (1) Before the mold is opened, the large slider guide block is fixed to the lower mold with screws through the screw holes, the top of the inclined slider is against the mold baffle of the upper mold, the positioning pin is against the inside of the first groove and on the side wall near one end of the upper mold, the first protrusion is inside the third groove, and the fourth protrusion is inside the second groove; (2) During the mold opening operation, under the operation of the oil cylinder, the large slider moves outward, and the inclined surface pressure block and the positioning pin move outward and downward under the drive of the large slider. At the same time, since the inclined surface slider is subjected to the inward and downward force from the inclined surface pressure block and the first protrusion is restricted inside the third groove, the inclined surface slider can only move vertically upward, that is, the inclined surface slider performs a vertical upward mold opening operation; when the positioning pin moves downward and presses against the other side end inside the first groove, the first protrusion has moved upward and left the constraint of the third groove. Under the traction of the positioning pin, the inclined surface slider moves outward following the large slider, and finally completes the mold opening operation; (3) When the mold is closed, under the action of the oil cylinder, the large slider moves inward with the inclined slider and the slider insert; when the first protrusion hits the limit block, the inclined slider and the slider insert cannot continue to move inward with the large slider, but move downward until the first protrusion completely enters the third groove, and then the inclined slider and the slider insert stop moving, and the large slider and the inclined pressure block continue to move inward. When the positioning pin abuts against the inside of the first groove and on the side wall close to one end of the upper mold of the mold, the large slider and the inclined pressure block stop moving, and the mold closing operation is completed.

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