Pitched roof demolding structure

Abstract

The utility model discloses a pitched roof demoulding structure, which relates to the technical field of demoulding structures and particularly comprises a base, a workbench is arranged at the top of the base, two sides of the bottom of the workbench are fixed on the base through a support, a lower mould is mounted at the top of the workbench, an upper mould is arranged at the top of the lower mould, and the upper mould is matched with the lower mould. An electric push rod is installed at the top of the base, a movable plate is fixedly connected to the top of the electric push rod and located below the workbench, U-shaped bases are installed on the two sides of the top of the movable plate, a guide rod is installed between every two U-shaped bases, and each guide rod is sleeved with a first connecting block and a second connecting block. Sliding friction between the first connecting block and the guide rod and sliding friction between the second connecting block and the guide rod can be converted into rolling friction through the balls during use, then the abrasion speed of the first connecting block and the second connecting block is reduced, and the service life of the first connecting block and the service life of the second connecting block are prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of demoulding structures, in particular to a slanted top demoulding structure. Background Art

[0002] The mold lifter, also known as the inclined tip or inclined ejector, is a mechanism used in mold design to completely push the product with barbs out of the mold cavity after molding. It is suitable for relatively simple barb situations.

[0003] After the mold has shaped the product, it is generally necessary to push the inclined ejector mechanism through a pushing mechanism, and the inclined ejector mechanism moves to eject the product in the mold cavity to complete demoulding. However, since the bottom of the inclined ejector rod on the existing inclined ejector mechanism is generally set as a wedge-shaped structure to match the wedge-shaped groove opened on the inclined ejector base, during the process of ejecting the product, the inclined ejector rod will be forced to move horizontally while moving upward, and the bottom of the inclined ejector rod will move along the wedge-shaped groove to complete the adjustment of the position of the inclined ejector rod. When ejecting the product, the inclined ejector rod will be subjected to a downward reaction force, resulting in an increase in the friction between the wedge block and the wedge groove, which will cause the bottom of the inclined ejector rod to wear too quickly and have a short service life. For this reason, we propose a inclined ejector demoulding structure. Utility Model Content

[0004] In view of the shortcoming of the existing demoulding structure that the bottom of the inclined ejector rod wears too quickly during demoulding, the utility model provides an inclined ejector demoulding structure, which has the advantage of reducing the wear speed of the first connecting block and the second connecting block by means of balls, thereby solving the problems raised in the above background technology.

[0005] To achieve the above purpose, the utility model is implemented by the following technical solutions: an inclined top demoulding structure, including a base, a workbench is provided on the top of the base, two sides of the bottom of the workbench are fixed to the base through brackets, a lower mold is installed on the top of the workbench, an upper mold is provided on the top of the lower mold, and the upper mold is adapted to the lower mold;

[0006] An electric push rod is installed on the top of the base, and a moving plate is fixedly connected to the top of the electric push rod. The moving plate is located below the workbench. U-shaped seats are installed on both sides of the top of the moving plate. A guide rod is installed between each U-shaped seat. A first connecting block and a second connecting block are sleeved on each guide rod. The first connecting block and the second connecting block are symmetrically arranged, and a plurality of balls are installed on the inner surfaces of the first connecting block and the second connecting block at equal distances. The balls are in contact with the side surfaces of the guide rods.

[0007] A lift rod is installed on the top of each first connecting block, and a first receiving groove is symmetrically opened at the bottom of the cavity of the lower mold. The top of the lift rod extends into the first receiving groove, and the top of the lift rod is flush with the bottom of the cavity of the lower mold.

[0008] Optionally, positioning screws are installed at the top corners of the lower mold, the top of each positioning screw passes through the upper mold, the top of each positioning screw is covered with a locking screw sleeve, and the bottom of the locking screw sleeve contacts the top of the upper mold.

[0009] Optionally, skirts are extended from both sides of the first connecting block and the second connecting block, and two skirts on the same side are in contact with each other and fixed by bolts.

[0010] Optionally, limit rods are installed at the top of the base at the four corners of the movable plate, and the tops of the limit rods slide through the movable plate and are fixed to the bottom of the workbench.

[0011] Optionally, a plurality of push rods are equidistantly installed on both sides of the top of the movable plate, a plurality of second accommodating grooves are equidistantly opened on the bottom of the lower mold cavity, and the tops of the push rods extend into the second accommodating grooves and are flush with the openings of the second accommodating grooves.

[0012] Optionally, legs are installed at the four bottom corners of the base.

[0013] Compared with the prior art, the utility model can convert the sliding friction between the first connecting block and the second connecting block and the guide rod into rolling friction through the ball when in use, thereby reducing the wear rate of the first connecting block and the second connecting block and extending the service life of the first connecting block and the second connecting block. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model.

[0015] Figure 2 It is the structural front view of the utility model.

[0016] Figure 3 This is a schematic diagram of the second connecting block structure of the utility model.

[0017] Figure 4 It is a schematic diagram of the U-shaped seat and the inclined ejector structure of the utility model.

[0018] In the figure: 1. base; 2. workbench; 3. lower mold; 4. movable plate; 5. electric push rod; 6. U-shaped seat; 7. guide rod; 8. inclined push rod; 9. first accommodating groove; 10. push rod; 11. second accommodating groove; 12. limit rod; 13. upper mold; 14. locking screw sleeve; 15. positioning screw; 16. first connecting block; 17. second connecting block; 18. ball; 19. skirt. DETAILED DESCRIPTION

[0019] 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.

[0020] See also Figures 1 to 4 The utility model provides a technical solution: a slanted top demoulding structure, comprising a base 1, a workbench 2 is arranged on the top of the base 1, the two sides of the bottom of the workbench 2 are fixed on the base 1 through brackets, a lower mold 3 is installed on the top of the workbench 2, an upper mold 13 is arranged on the top of the lower mold 3, and the upper mold 13 is adapted to the lower mold 3. Through the cooperation of the upper mold 13 and the lower mold 3, the workpiece can be formed and processed to complete the shaping of the workpiece;

[0021] like Figure 1 , Figure 3 and Figure 4 As shown, an electric push rod 5 is installed on the top of the base 1, and a movable plate 4 is fixedly connected to the top of the electric push rod 5. The movable plate 4 is located below the workbench 2. U-shaped seats 6 are installed on both sides of the top of the movable plate 4. A guide rod 7 is installed between each U-shaped seat 6. A first connecting block 16 and a second connecting block 17 are sleeved on each guide rod 7. The first connecting block 16 and the second connecting block 17 are symmetrically arranged and a plurality of balls 18 are equidistantly installed on the inner surfaces of the two. The balls 18 are in contact with the side of the guide rod 7. A lift rod 8 is installed on the top of each first connecting block 16. The bottom of the cavity of the lower mold 3 is symmetrically provided with a first accommodating groove 9. The top of the lift rod 8 extends into the first accommodating groove 9, and the top of the lift rod 8 is flush with the bottom of the cavity of the lower mold 3. In actual use, after the workpiece is shaped, the upper mold 13 is removed, and then the electric push rod 5 can be used to push one end of the movable plate 4 to move the inclined push rod 8 upward to lift the workpiece in the cavity of the lower mold 3. During the lifting process, the first connecting block 16 and the second connecting block 17 will move along the guide rod 7, and then the ball 18 can be used to reduce the friction force on the first connecting block 16 and the second connecting block 17, thereby reducing the wear rate of the first connecting block 16 and the second connecting block 17.

[0022] Specifically, when the utility model is in use, after the workpiece is shaped, the upper mold 13 is disassembled from the lower mold 3, and then the electric push rod 5 is controlled to work, the electric push rod 5 pushes the movable plate 4 to move upward, and then drives the inclined ejector rod 8 to move upward, the top of the inclined ejector rod 8 extends out of the first accommodating groove 9 and pushes the workpiece, and pushes the workpiece out of the cavity of the lower mold 3. At the same time, during the ejection process, the first connecting block 16 and the second connecting block 17 on the bottom of the inclined ejector rod 8 will be forced to slide horizontally along the guide rod 7, so that the balls 18 inside the first connecting block 16 and the second connecting block 17 roll on the surface of the guide rod 7, and the sliding friction between the guide rod 7 and the first connecting block 16, and the second connecting block 17 is converted into rolling friction, thereby reducing the friction between the first connecting block 16, and the second connecting block 17 and the guide rod 7, and extending the service life of the first connecting block 16 and the second connecting block 17.

[0023] Further, such as Figure 1 As shown, positioning screws 15 are installed at the top corners of the lower mold 3, the top of each positioning screw 15 passes through the upper mold 13, and the top of each positioning screw 15 is covered with a locking screw sleeve 14, and the bottom of the locking screw sleeve 14 contacts the top of the upper mold 13. During assembly, the upper mold 13 can be covered on the lower mold 3 through the positioning screws 15 to complete the positioning of the upper mold 13 and the lower mold 3, and then the locking screw sleeve 14 can be covered on the positioning screw 15 and tightened to tightly fix the upper mold 13 and the lower mold 3 together, completing the assembly of the mold.

[0024] Further, such as Figure 4 As shown, skirts 19 are extended on both sides of the first connecting block 16 and the second connecting block 17, and the two skirts 19 on the same side are in contact with each other and fixed by bolts. The first connecting block 16 and the second connecting block 17 can be fixed together, and then the inclined ejector rod 8 and the guide rod 7 can be connected together, and the inclined ejector rod 8 can be guided and limited by the guide rod 7.

[0025] Further, such as Figure 1 As shown, the top of the base 1 is located at the four corners of the movable plate 4 and is equipped with limit rods 12, and the top of the limit rods 12 slides through the movable plate 4 and is fixed to the bottom of the workbench 2. Under the action of the limit rods 12, the movable plate 4 can be limited, so that the movable plate 4 remains stable when moving.

[0026] Further, such as Figure 1As shown, a plurality of push rods 10 are evenly installed on both sides of the top of the movable plate 4, and a plurality of second receiving grooves 11 are evenly opened at the bottom of the cavity of the lower mold 3. The top of the push rod 10 extends into the second receiving groove 11 and is flush with the opening of the second receiving groove 11. In actual use, when the electric push rod 5 pushes the movable plate 4 upward, the push rod 10 can move upward synchronously with the inclined ejector 8 to eject the workpiece from the cavity of the lower mold 3, and the workpiece is ejected stably.

[0027] Furthermore, Figure 1 As shown, legs are installed at the four corners of the bottom of the base 1 to support the corners of the base 1 so that the base 1 remains stable.

[0028] In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not expressly listed, or also includes elements inherent to such process, method, article, or apparatus.

[0029] 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 sloping top demoulding structure, comprising a base (1), characterized in that: A workbench (2) is provided on the top of the base (1), and two sides of the bottom of the workbench (2) are fixed to the base (1) through brackets. A lower mold (3) is installed on the top of the workbench (2), and an upper mold (13) is provided on the top of the lower mold (3), and the upper mold (13) is matched with the lower mold (3); An electric push rod (5) is installed on the top of the base (1), and a movable plate (4) is fixedly connected to the top of the electric push rod (5). The movable plate (4) is located below the workbench (2). U-shaped seats (6) are installed on both sides of the top of the movable plate (4). A guide rod (7) is installed between each U-shaped seat (6). Each guide rod (7) is sleeved with a first connecting block (16) and a second connecting block (17). The first connecting block (16) and the second connecting block (17) are symmetrically arranged, and a plurality of balls (18) are equidistantly installed on the inner surfaces of the first connecting block (16) and the second connecting block (17). The balls (18) are in contact with the side surfaces of the guide rods (7). A tilted ejector rod (8) is installed on the top of each first connecting block (16), and a first receiving groove (9) is symmetrically opened at the bottom of the cavity of the lower mold (3). The top of the tilted ejector rod (8) extends into the first receiving groove (9), and the top of the tilted ejector rod (8) is flush with the bottom of the cavity of the lower mold (3).

2. The inclined top demoulding structure according to claim 1, characterized in that: Positioning screws (15) are installed at the top corners of the lower mold (3), the top of each positioning screw (15) passes through the upper mold (13), the top of each positioning screw (15) is sleeved with a locking screw sleeve (14), and the bottom of the locking screw sleeve (14) contacts the top of the upper mold (13).

3. The inclined top demoulding structure according to claim 1, characterized in that: Skirts (19) are extended from both sides of the first connecting block (16) and the second connecting block (17), and the two skirts (19) on the same side are in contact with each other and fixed by bolts.

4. The inclined top demoulding structure according to claim 1, characterized in that: Limit rods (12) are installed at the top of the base (1) at the four corners of the movable plate (4), and the top of the limit rod (12) slides through the movable plate (4) and is fixed to the bottom of the workbench (2).

5. The inclined top demoulding structure according to claim 1, characterized in that: A plurality of push rods (10) are evenly installed on both sides of the top of the movable plate (4), and a plurality of second receiving grooves (11) are evenly opened at the bottom of the cavity of the lower mold (3), and the top of the push rod (10) extends into the second receiving groove (11) and is flush with the opening of the second receiving groove (11).

6. The inclined top demoulding structure according to claim 1, characterized in that: The four corners of the bottom of the base (1) are all equipped with supporting legs.

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