Wheel core mold with positioning device

Abstract

This patent discloses a wheel core mold with a positioning device, including a lower mold box, a top of the lower mold box is buckled with an upper mold cover, a bottom of the lower mold box is provided with a base, a lead screw motor is fixedly installed on the top left side of the base, a screw is fixedly installed on the top end of the rotating shaft of the lead screw motor, a nut is screwed on the side wall of the screw, a cross bar is fixedly installed on the right end of the nut, and the right end of the cross bar is fixedly installed on the left end of the upper mold cover. This patent installs a screw on the lead screw motor, a nut is screwed on the screw, the nut is composed of an internal thread ring, a vertical pipe and a movable ring, the movable ring is connected to the internal thread ring through a connecting rod, and the inner side wall of the movable ring slides in the outer side wall slide groove of the vertical pipe through a slider. Through this design, the nut and the limit can be integrated into one to avoid occupying a large external space, and the slider is composed of a block and a limit wheel, which changes the traditional sliding limit into a sliding limit, which can greatly reduce the friction and improve the service life of parts.

Description

Technical Field

[0001] This patent relates to the field of mold technology, specifically a wheel core mold with a positioning device. Background Art

[0002] The existing wheel core mold is composed of a lower mold box and an upper mold cover. In order to increase the movement and positioning effect of the upper mold cover, the upper mold cover is driven to move through a screw mechanism. The thread of the screw motor is limited in the slide groove of the fixed plate through an external slider. The installation of the external slider and the fixed plate will increase the occupied space of the overall structure, and the sliding of the slider in the slide groove is a sliding limit, which causes large wear and friction, resulting in a short service life of components. For this reason, we propose a wheel core mold with a positioning device. Utility Model Content

[0003] The purpose of this patent is to provide a wheel core mold with a positioning device to solve the problems raised in the above background technology.

[0004] To achieve the above purpose, the present patent provides the following technical solutions: a wheel core mold with a positioning device, comprising a lower mold box, the top of the lower mold box is buckled with an upper mold cover, the bottom of the lower mold box is provided with a base, a lead screw motor is fixedly installed on the left side of the top of the base, a screw is fixedly installed on the top of the rotating shaft of the lead screw motor, a nut is screwed on the side wall of the screw, a cross bar is fixedly installed on the right end of the nut, and the right end of the cross bar is fixedly installed on the left end of the upper mold cover;

[0005] The nut includes an internal threaded ring, a vertical tube and a movable ring. The inner side wall of the internal threaded ring is threaded on the side wall of the screw rod. The bottom end of the vertical tube is fixedly mounted on the top of the outer shell of the screw motor. Rectangular holes are provided at the front and rear ends of the inner side wall of the vertical tube. Slide grooves are provided at the left and right ends of the inner side wall of the vertical tube. One end of a connecting rod is fixedly mounted on the front and rear ends of the inner side wall of the movable ring. The other end of the connecting rod passes through the rectangular hole and is fixedly mounted on the outer side wall of the internal threaded ring. Slide blocks are fixedly mounted on the left and right ends of the inner side wall of the movable ring. The slide blocks are slidably mounted in the slide grooves. The left end of the cross bar is fixedly mounted on the right end of the outer side wall of the movable ring.

[0006] Preferably, the slider includes a block, the outer end of the block is fixedly mounted on the inner wall of the movable ring, the inner end of the block is provided with a U-shaped groove, a limiting wheel is connected in the U-shaped groove via a rotating shaft, and the end of the limiting wheel is rollingly mounted in the slide groove.

[0007] Preferably, the inner end of the block does not contact the outer side wall of the riser.

[0008] Preferably, mounting holes are provided at the bottom of the left and right ends of the outer wall of the vertical pipe, bolts are provided in the mounting holes, a circular ring is integrally formed on the top of the outer shell of the screw motor, thread grooves are provided at the left and right ends of the outer wall of the circular ring, and the inner end of the bolt is screwed into the thread groove.

[0009] Preferably, the inner diameter of the standpipe matches the outer diameter of the circular ring, and the inner sidewall of the standpipe is sleeved on the outer sidewall of the circular ring.

[0010] Preferably, a positioning groove is provided on the top of the base, and the bottom of the lower mold box is located in the positioning groove.

[0011] Compared with the prior art, the beneficial effects of this patent are as follows: this patent installs a screw on the screw motor, a nut is threaded on the screw, the nut is composed of an internal threaded ring, a vertical tube and a movable ring, the movable ring is connected to the internal threaded ring through a connecting rod, the bottom end of the vertical tube is fixed to the top of the outer shell of the screw motor, the inner side wall of the movable ring slides in the outer side wall groove of the vertical tube through a slider, through this design, the nut and the limit are integrated into one to avoid occupying a large external space, and the slider is composed of a block and a limit wheel, which changes the traditional sliding limit into a sliding limit, which can greatly reduce the friction and increase the service life of components. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is the overall three-dimensional diagram of this patent.

[0013] Figure 2 This is a top view of the nut of this patent.

[0014] Figure 3 This is a schematic diagram of the partial structure of this patent.

[0015] Figure 4 This is a schematic diagram of the partial structure of this patent.

[0016] In the figure: 1, lower mold box, 2, upper mold cover, 3, base, 4, screw motor, 5, screw, 6, nut, 7, cross bar, 8, internal thread ring, 9, vertical pipe, 10, rectangular hole, 11, slide groove, 12, moving ring, 13, connecting rod, 14, slider, 15, block, 16, U-shaped groove, 17, limiting wheel, 18, mounting hole, 19, bolt, 20, ring, 21, threaded groove. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of this patent to clearly and completely describe the technical solutions in the embodiments of this patent. Obviously, the described embodiments are only part of the embodiments of this patent, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this patent.

[0018] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 This patent provides a technical solution: a wheel core mold with a positioning device, comprising a lower mold box 1, the top of the lower mold box 1 is buckled with an upper mold cover 2, the bottom of the lower mold box 1 is provided with a base 3, a lead screw motor 4 is fixedly installed on the left side of the top of the base 3, a screw 5 is fixedly installed on the top of the rotating shaft of the lead screw motor 4, a nut 6 is screwed on the side wall of the screw 5, a cross bar 7 is fixedly installed on the right end of the nut 6, and the right end of the cross bar 7 is fixedly installed on the left end of the upper mold cover 2;

[0019] The nut 6 includes an internal threaded ring 8, a vertical tube 9 and a movable ring 12. The inner wall of the internal threaded ring 8 is threaded on the side wall of the screw rod 5. The bottom end of the vertical tube 9 is fixedly mounted on the top of the outer shell of the screw motor 4. Rectangular holes 10 are provided at the front and rear ends of the inner wall of the vertical tube 9. Slide grooves 11 are provided at the left and right ends of the inner wall of the vertical tube 9. One end of a connecting rod 13 is fixedly mounted on the front and rear ends of the inner wall of the movable ring 12. The other end of the connecting rod 13 passes through the rectangular hole 10 and is fixedly mounted on the outer wall of the internal threaded ring 8. Slide blocks 14 are fixedly mounted on the left and right ends of the inner wall of the movable ring 12. The slide block 14 is slidably mounted in the slide groove 11. The left end of the cross bar 7 is fixedly mounted on the right end of the outer wall of the movable ring 12.

[0020] like Figure 2 As shown, the screw 5, the internal thread ring 8, the vertical pipe 9 and the moving ring 12 are all coaxial.

[0021] Specifically, the slider 14 includes a block 15, the outer end of the block 15 is fixedly mounted on the inner wall of the movable ring 12, the inner end of the block 15 is provided with a U-shaped groove 16, and a limiting wheel 17 is connected to the U-shaped groove 16 through a rotating shaft, and the end of the limiting wheel 17 is rollingly mounted in the slide groove 11.

[0022] Specifically, the inner end of the block 15 does not contact the outer side wall of the riser 9 .

[0023] like Figure 3 As shown, the inner contour of the slide groove 11 matches the contour of the edge of the wheel body of the limiting wheel 17. The end of the limiting wheel 17 is rolled and installed in the slide groove 11, and the traditional sliding limit is changed to a rolling limit, which can greatly reduce friction, reduce wear, and increase the service life of components.

[0024] Specifically, mounting holes 18 are provided at the bottom of the left and right ends of the outer wall of the vertical pipe 9, and bolts 19 are provided in the mounting holes 18. A circular ring 20 is integrally formed on the top of the outer shell of the screw motor 4, and thread grooves 21 are provided at the left and right ends of the outer wall of the circular ring 20. The inner end of the bolt 19 is screwed into the thread groove 21.

[0025] Specifically, the inner diameter of the standpipe 9 matches the outer diameter of the ring 20 , and the inner sidewall of the standpipe 9 is sleeved on the outer sidewall of the ring 20 .

[0026] By matching the inner diameter of the standpipe 9 with the outer diameter of the ring 20 , the installation positions of the standpipe 9 and the lead screw motor 4 can be limited.

[0027] Specifically, a positioning groove is provided on the top of the base 3, and the bottom of the lower mold box 1 is located in the positioning groove.

[0028] The positioning groove on the base 3 is provided to limit the position of the lower mold box 1 on the base 1 .

[0029] Working principle: When it is necessary to open the upper mold cover 2 on the lower mold box 1, the screw 5 can be controlled to rotate by the screw motor 4. Since the vertical pipe 9 is in a fixed state, and the moving ring 12 slides in the slide groove 11 through the slider 14, the internal thread ring 8 connected to the moving ring 12 will not rotate and can only move upward. The moving ring 12 drives the upper mold cover 2 to move upward through the cross bar 7.

[0030] It should be noted that the equipment structure and drawings of this patent mainly describe the principles of this patent. In terms of the technology of this design principle, the settings of the device's power mechanism, power supply system and control system are not fully described. However, on the premise that technical personnel in this field understand the principles of the above patent, they can clearly know the details of its power mechanism, power supply system and control system.

[0031] In the description of this patent, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inside", "front", "center", "two ends" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing this patent 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; at the same time, unless otherwise clearly stipulated and limited, the terms "setting", "installation", "connection", "fixed installation" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, for ordinary technicians in this field, the specific meanings of the above terms in this patent can be understood according to the specific circumstances.

[0032] Although the embodiments of the present patent have been shown and described, it will be understood 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 patent, and the scope of the present patent is defined by the appended claims and their equivalents.

Claims

1. A wheel core mold with a positioning device, characterized in that: The invention comprises a lower mold box (1), the top of which is buckled with an upper mold cover (2), the bottom of which is provided with a base (3), a lead screw motor (4) is fixedly mounted on the left side of the top of the base (3), a screw rod (5) is fixedly mounted on the top of the rotating shaft of the lead screw motor (4), a nut (6) is screwed on the side wall of the screw rod (5), a cross bar (7) is fixedly mounted on the right end of the nut (6), and the right end of the cross bar (7) is fixedly mounted on the left end of the upper mold cover (2); The nut (6) comprises an internal threaded ring (8), a vertical tube (9) and a movable ring (12); the inner side wall of the internal threaded ring (8) is threadedly connected to the side wall of the screw rod (5); the bottom end of the vertical tube (9) is fixedly mounted on the top of the housing of the screw motor (4); rectangular holes (10) are provided at the front and rear ends of the inner side wall of the vertical tube (9); slide grooves (11) are provided at the left and right ends of the inner side wall of the vertical tube (9); one end of a connecting rod (13) is fixedly mounted at the front and rear ends of the inner side wall of the movable ring (12); the other end of the connecting rod (13) passes through the rectangular hole (10) and is fixedly mounted on the outer side wall of the internal threaded ring (8); sliders (14) are fixedly mounted at the left and right ends of the inner side wall of the movable ring (12); the sliders (14) are slidably mounted in the slide grooves (11); the left end of the cross bar (7) is fixedly mounted on the right end of the outer side wall of the movable ring (12).

2. A wheel core mold with a positioning device according to claim 1, characterized in that: The slider (14) comprises a block (15), the outer end of the block (15) being fixedly mounted on the inner side wall of the moving ring (12), the inner end of the block (15) being provided with a U-shaped groove (16), the U-shaped groove (16) being connected with a limiting wheel (17) via a rotating shaft, and the end of the limiting wheel (17) being rollingly mounted in the slide groove (11).

3. A wheel core mold with a positioning device according to claim 2, characterized in that: The inner end of the block (15) does not contact the outer side wall of the riser (9).

4. The wheel core mold with a positioning device according to claim 1, characterized in that: The bottom of the left and right ends of the outer wall of the vertical pipe (9) are provided with mounting holes (18), and bolts (19) are arranged in the mounting holes (18). The top of the housing of the screw motor (4) is integrally formed with a ring (20), and the left and right ends of the outer wall of the ring (20) are provided with thread grooves (21), and the inner ends of the bolts (19) are screwed into the thread grooves (21).

5. A wheel core mold with a positioning device according to claim 4, characterized in that: The inner diameter of the stand pipe (9) matches the outer diameter of the circular ring (20), and the inner side wall of the stand pipe (9) is sleeved on the outer side wall of the circular ring (20).

6. The wheel core mold with a positioning device according to claim 1, characterized in that: A positioning groove is provided on the top of the base (3), and the bottom of the lower mold box (1) is located in the positioning groove.

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