Constant-speed tablet press

Abstract

The utility model belongs to the technical field of tablet presses, and discloses a constant-speed tablet press which comprises a bottom table, a controller is installed on the side wall of the bottom table, a fixed die is fixed to the middle of the top of the bottom table, a cavity is formed in the top of the fixed die, first cavity grooves are formed in the two ends of the interior of the bottom table, and driving motors are installed on the two sides of the bottom table. The top ends of the interiors of the two first cavity grooves are movably connected with lead screws through bearings, and the ends, extending out of the bottom table, of the two lead screws are sleeved with threaded sleeves. Through cooperation of structures such as the second bevel gear, the first bevel gears, the lead screws and the threaded sleeves, the fixed plate drives the movable mold to move stably, and the movable mold can move stably; the movable die can be controlled to ascend and descend stably, deviation of the movable die is avoided, the stamping stability is improved, the movable die can be limited through the guide rod, the movable die can move linearly, and therefore the movable die can move more stably and reliably.

Description

Technical Field

[0001] The utility model belongs to the technical field of tablet presses, and in particular relates to a uniform speed tablet press. Background Art

[0002] At present, tablets are becoming more and more common, the fields in which tablets are used are expanding, and the market demand for tablets is increasing year by year. Tablets are made by pressing powder or granules with a tablet press under high pressure. The existing tablet press can press granular and powdery raw materials into tablets of various shapes, can press large products, and can produce multiple tablets with one mold. It can be used in large-scale production industries, and the mold replacement and installation are convenient, and the operation is simple and easy to learn.

[0003] In the Chinese patent with patent number CN102205666B, a template for a rotor of a rotary tablet press is disclosed, comprising: a plurality of die holes distributed along the circumferential direction of the template, a die is arranged in the die hole; and a hole extending radially between every two adjacent die holes, a fastening device is arranged in each of the holes for fastening the die; characterized in that at least one fastening device comprises two clamping elements and a tensioning device, the two clamping elements are arranged in a radial hole opposite to each other, wherein the clamping elements can be mutually tensioned in a radial direction by using the tensioning device, wherein the clamping elements are pressed against the die adjacent to the radial hole, but in actual use, it is difficult to control the stability of the movable die movement, and the two ends of the movable die are subjected to uneven force, resulting in not being on the same horizontal line during movement, thereby affecting the stability of stamping and reducing the product quality. In addition, after stamping, the formed workpiece is easily stuck in the molding cavity in the die base, which is inconvenient for the staff to take it out, greatly affecting the work efficiency. Utility Model Content

[0004] The utility model aims to provide a uniform speed tablet press to solve the problems in the above background technology that the movable die movement is unstable and the workpiece after punching is easily stuck in the die seat.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a uniform speed tablet press, comprising a base, a controller is installed on the side wall of the base, and a fixed mold is fixed in the middle of the top of the base, a mold cavity is opened on the top of the fixed mold, a first cavity is opened at both ends of the interior of the base, and a driving motor is installed on both sides of the base, the inner bottom ends of the two first cavities are movably connected with screw rods through bearings, and the ends of the two screw rods extending to the outside of the base are both sleeved with threaded sleeves, a fixed plate is connected between the two threaded sleeves, a movable mold is installed at the bottom of the fixed plate near the top of the fixed mold, a first bevel gear is fixed at the bottom end of the two screw rods and at the position inside the first cavity, a second bevel gear meshing with the first bevel gear is installed at one end of the output shaft of the two driving motors extending to the inside of the first cavity, and a guide rod is penetrated on one side of the two ends of the fixed plate near the movable mold, and the bottom ends of the two guide rods are connected to the base.

[0006] Preferably, a second cavity is opened inside the fixed mold near the bottom of the cavity, a support rod is installed inside the second cavity, both ends of the outer wall of the support rod are sleeved with sliding sleeves, and a spring is installed on the outer wall of the support rod between the two sliding sleeves, the two ends of the spring are respectively connected to the two sliding sleeves, the tops of the two sliding sleeves are hinged with connecting rods, the ends of the two connecting rods away from the sliding sleeves are movably connected with a limit plate through a rotating shaft, a limit block is installed on the top of the limit plate, and the end of the limit block away from the limit plate extends to the inside of the cavity.

[0007] Preferably, a protective cover is installed on the outer wall of the driving motor, and heat dissipation holes are opened on the outer wall of the protective cover.

[0008] Preferably, a stopper is installed on the top of the screw rod, and the stopper is cylindrical.

[0009] Preferably, a pad is installed at the bottom of the base, and a protrusion is provided at the bottom of the pad.

[0010] Preferably, positioning columns are installed at both ends of the bottom of the movable mold, and positioning grooves matching the positioning columns are opened at both ends of the top of the fixed mold.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] (1) The utility model uses the cooperation of the second bevel gear, the first bevel gear, the screw and the screw sleeve to enable the fixed plate to drive the movable mold to move smoothly, thereby controlling the stable lifting and lowering of the movable mold, avoiding the displacement of the movable mold, and improving the stability of stamping. The movable mold can be limited by the guide rod so that the movable mold can move along a straight line, thereby making the movable mold more stable and reliable when moving.

[0013] (2) The utility model uses the coordination of structures such as the limit block, the support rod, the connecting rod and the spring to enable the limit block to push the product out of the cavity, thereby avoiding the product from being stuck in the cavity after stamping, thereby facilitating the staff to remove the product in time. The utility model is simple and convenient to use, has a high safety factor, and greatly improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0015] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0016] Figure 3 for Figure 2 Enlarged view of part A in the middle;

[0017] Figure 4 for Figure 2 Enlarged view of middle part B;

[0018] In the figure: 1-base; 2-controller; 3-fixed mold; 4-cavity; 5-first cavity; 6-driving motor; 7-screw; 8-screw sleeve; 9-fixed plate; 10-movable mold; 11-first bevel gear; 12-second bevel gear; 13-guide rod; 14-second cavity; 15-support rod; 16-sliding sleeve; 17-spring; 18-connecting rod; 19-limiting plate; 20-limiting block. 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 Figure 1-Figure 4As shown, the utility model provides the following technical solutions: a uniform speed tablet press, comprising a base 1, a controller 2 is installed on the side wall of the base 1, the model of the controller 2 is CPU226, and a fixed mold 3 is fixed in the middle of the top of the base 1, a cavity 4 is opened on the top of the fixed mold 3, first cavities 5 are opened at both ends of the inside of the base 1, and drive motors 6 are installed on both sides of the base 1, the drive motor 6 is electrically connected to the controller 2, and the model of the drive motor 6 is GH-28-750-60S, the bottom ends of the two first cavities 5 are movably connected with screw rods 7 through bearings, and the ends of the two screw rods 7 extending to the outside of the base 1 are sleeved with screw sleeves 8, a fixed plate 9 is connected between the two screw sleeves 8, a movable mold 10 is installed at the bottom of the fixed plate 9 near the top of the fixed mold 3, and the bottom ends of the two screw rods 7 and located inside the first cavity 5 are fixed with first umbrella-shaped Gear 11, the output shafts of the two driving motors 6 extend to one end of the first cavity 5 and are both equipped with a second bevel gear 12 meshing with the first bevel gear 11. The driving motor 6 is started by the controller 2, so that the driving motor 6 works to drive the second bevel gear 12 to rotate, and then the second bevel gear 12 drives the first bevel gear 11 to rotate, so that the two screw rods 7 rotate at the same time, and then the screw rod 7 drives the screw sleeve 8 to move, so that the two screw sleeves 8 drive the fixed plate 9 to move at the same time, thereby controlling the smooth lifting and lowering of the movable mold 10, avoiding the displacement of the movable mold 10, and improving the stability of stamping. Guide rods 13 are passed through the two ends of the fixed plate 9 close to the side of the movable mold 10, and the movable mold 10 can be limited by the guide rods 13, so that the movable mold 10 can move along a straight line, thereby making the movable mold 10 more stable, and the bottom ends of the two guide rods 13 are connected to the base 1.

[0021] Furthermore, a second cavity 14 is provided inside the fixed mold 3 near the bottom of the cavity 4, a support rod 15 is installed inside the second cavity 14, both ends of the outer wall of the support rod 15 are sleeved with sliding sleeves 16, and a spring 17 is installed at the outer wall of the support rod 15 between the two sliding sleeves 16, the two ends of the spring 17 are respectively connected to the two sliding sleeves 16, the tops of the two sliding sleeves 16 are hinged with connecting rods 18, and the ends of the two connecting rods 18 away from the sliding sleeves 16 are movably connected to a limit plate 19 through a rotating shaft, and a limit plate 19 is installed on the top of the limit plate 19 The limit block 20 extends to the inside of the cavity 4 at one end of the limit block 20 away from the limit plate 19. During stamping, the product drives the extrusion limit block 20, so that the limit block 20 drives the limit plate 19 to move downward, and then the limit plate 19 drives the sliding sleeve 16 to move on the support rod 15 through the connecting rod 18, so that the spring 17 is stretched. When the movable mold 10 rises, the limit block 20 is re-entered into the cavity 4 under the action of the spring 17, so that the limit block 20 pushes the product out of the cavity 4, so that the staff can remove the product in time. It is simple and convenient to use, and greatly improves the work efficiency.

[0022] Furthermore, a protective cover is installed on the outer wall of the driving motor 6, the protective cover has the function of protecting and dissipating heat, and the outer wall of the protective cover is provided with heat dissipation holes.

[0023] Specifically, a stopper is installed on the top of the screw rod 7, the stopper plays the role of a spacer screw sleeve 8, and the stopper is cylindrical.

[0024] Specifically, a pad is installed at the bottom of the base 1, the pad has an anti-slip function, and a protrusion is arranged at the bottom of the pad.

[0025] Specifically, positioning columns are installed at both ends of the bottom of the movable mold 10. The cooperation of the positioning columns and the positioning grooves can make the movable mold 10 and the fixed mold 3 more accurate during stamping. Positioning grooves matching the positioning columns are opened at both ends of the top of the fixed mold 3.

[0026] The working principle and use process of the utility model: when the utility model is used, firstly, the power supply is turned on to energize the inside of the device, and then the air conditioner radiator component to be punched is fixed on the fixed mold 3, and then the driving motor 6 is started through the controller 2, so that the driving motor 6 works to drive the second bevel gear 12 to rotate, and then the second bevel gear 12 drives the first bevel gear 11 to rotate, so that the two screw rods 7 rotate at the same time, and then the screw rod 7 drives the screw sleeve 8 to move, so that the two screw sleeves 8 drive the fixed plate 9 to move at the same time, and then the fixed plate 9 moves along the guide rod 13, thereby controlling the stable descent of the movable mold 10, avoiding the displacement of the movable mold 10, and then the movable mold The punching head on 10 acts on the air-conditioning radiator component, so that the air-conditioning radiator component is extruded and formed. At this time, the air-conditioning radiator component drives the extrusion limit block 20, so that the limit block 20 drives the limit plate 19 to move downward, and the limit plate 19 drives the sliding sleeve 16 to move on the support rod 15 through the connecting rod 18, so that the spring 17 is stretched. After stamping and forming, the movable mold 10 can be raised by driving the motor 6, and then the limit block 20 is bounced into the cavity 4 again under the action of the spring 17, so that the limit block 20 pushes the product out of the cavity 4, so that the staff can remove the formed air-conditioning radiator component in time. It is simple and convenient to use, and greatly improves work efficiency.

[0027] 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 uniform speed tablet press, characterized in that: The invention comprises a base (1), a controller (2) is installed on the side wall of the base (1), a fixed mold (3) is fixed in the middle of the top of the base (1), a mold cavity (4) is provided on the top of the fixed mold (3), first cavities (5) are provided at both ends of the base (1), and a drive motor (6) is installed on both sides of the base (1), the bottom ends of the two first cavities (5) are movably connected to screw rods (7) through bearings, and one end of the two screw rods (7) extending to the outside of the base (1) is sleeved with a screw sleeve (8), and a fixing plate (9) is connected between the two screw sleeves (8). ), a movable mold (10) is installed at the bottom of the fixed plate (9) near the top of the fixed mold (3), a first bevel gear (11) is fixed at the bottom ends of the two screw rods (7) and located inside the first cavity (5), and a second bevel gear (12) meshing with the first bevel gear (11) is installed at one end of the output shafts of the two drive motors (6) extending into the first cavity (5), and a guide rod (13) is penetrated on one side of both ends of the fixed plate (9) near the movable mold (10), and the bottom ends of the two guide rods (13) are connected to the base (1).

2. A uniform speed tablet press according to claim 1, characterized in that: A second cavity (14) is provided inside the fixed mold (3) near the bottom of the mold cavity (4), and a support rod (15) is installed inside the second cavity (14). Both ends of the outer wall of the support rod (15) are sleeved with sliding sleeves (16), and a spring (17) is installed at a position between the two sliding sleeves (16) on the outer wall of the support rod (15), and both ends of the spring (17) are respectively connected to the two sliding sleeves (16). The tops of the two sliding sleeves (16) are hinged with connecting rods (18), and the ends of the two connecting rods (18) away from the sliding sleeves (16) are movably connected to a limit plate (19) through a rotating shaft. A limit block (20) is installed on the top of the limit plate (19), and the end of the limit block (20) away from the limit plate (19) extends to the inside of the mold cavity (4).

3. A uniform speed tablet press according to claim 1, characterized in that: A protective cover is installed on the outer wall of the driving motor (6), and heat dissipation holes are provided on the outer wall of the protective cover.

4. A uniform speed tablet press according to claim 1, characterized in that: A stopper is installed on the top of the screw rod (7), and the stopper is cylindrical.

5. A uniform speed tablet press according to claim 1, characterized in that: A pad is installed at the bottom of the base (1), and a protrusion is provided at the bottom of the pad.

6. A uniform speed tablet press according to claim 1, characterized in that: Positioning columns are installed at both ends of the bottom of the movable mold (10), and positioning grooves matching the positioning columns are provided at both ends of the top of the fixed mold (3).

Images