A single-punch tablet press with quick mold changing function

Abstract

This utility model relates to the technical field of single-punch tablet presses with quick mold changing function, and discloses a single-punch tablet press with quick mold changing function, including a base, a piston rod fixedly connected to the upper surface of the base, a slide cylinder slidably connected to the outer wall of the upper end of the piston rod, and a support and a base fixedly connected to the outer wall of the slide cylinder. A punching mechanism and an auxiliary mechanism are arranged on the upper side of the slide cylinder. The auxiliary mechanism is arranged outside the punching mechanism. The punching mechanism includes a mounting platform, which is fixedly connected to the upper end of the slide cylinder. A sleeve is fixedly connected to one side of the mounting platform. A motor is fixedly connected inside the sleeve. An eccentric disk is fixedly connected to the output end of the motor. The auxiliary mechanism is used for feeding and unloading materials. This mechanism achieves multi-level cooperation with the punching mechanism through linkage, which can reduce the difficulty of user debugging. The punching mechanism is used to complete the tableting work of materials, which facilitates mold replacement.

Description

Technical Field

[0001] This utility model relates to the technical field of single-punch tablet presses with quick mold changing function, specifically a single-punch tablet press with quick mold changing function. Background Technology

[0002] A single-punch tablet press is a small, intermittent device that compresses materials into tablets through vertical reciprocating motion. It is widely used in small-batch tablet production in the pharmaceutical, food, and chemical industries. Its core structure includes a die system (upper punch, middle die, lower punch), a pressure roller device, a feeder, a pressure regulating mechanism, and mechanical transmission components. During operation, material is filled into the middle die hole by the feeder. The upper and lower punches, driven by eccentric wheels, apply pressure to the material to form tablets. Tablet weight, thickness, and hardness can be controlled by adjusting the filling depth, compression pressure, and die specifications. The equipment is primarily mechanically driven, with a simple and reliable structure and low maintenance costs. It is suitable for tablet production with diameters of 6-25mm and thicknesses of 3-20mm, with a typical pressure range of 10-60kN. It is suitable for diverse needs such as pharmaceutical tablets, candies, and catalysts, and is particularly suitable for laboratory research and development and small-scale pilot production. Its limitations lie in its low production efficiency. The mold changing operation requires manual disassembly of screws and adjustment of the positioning and matching of the punch and the middle mold, which relies on operating experience. Due to mold misalignment, the tablets are not formed evenly or the equipment is worn. The mold changing time is usually 15-30 minutes, which has become the main difficulty restricting the rapid switching of multiple varieties.

[0003] Existing devices typically use cranks and connecting rods as power transmission components. Although existing devices can achieve good linkage, their compact structure and tight connections make it difficult to change molds, resulting in reduced device performance. Therefore, a device with strong linkage that does not hinder mold replacement is needed. Utility Model Content

[0004] The purpose of this invention is to provide a single-punch tablet press with a quick mold-changing function to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a single-punch tablet press with a quick mold changing function, comprising a base, a piston rod fixedly connected to the upper surface of the base, a slide cylinder slidably connected to the outer wall of the upper end of the piston rod, a support and a base fixedly connected to the outer wall of the slide cylinder, a punching mechanism and an auxiliary mechanism being provided on the upper side of the slide cylinder, and the auxiliary mechanism being provided on the outside of the punching mechanism;

[0006] The stamping mechanism includes a mounting platform, which is fixedly connected to the upper end of the slide cylinder. A sleeve is fixedly connected to one side of the mounting platform, and a motor is fixedly connected inside the sleeve. An eccentric disc is fixedly connected to the output end of the motor, and the eccentric disc is located inside the mounting platform. A retaining sleeve is fixedly connected to the output end of the motor, and the retaining sleeve is located outside the mounting platform. A sliding groove is formed inside the eccentric disc, and a rotating cylinder is slidably connected to the inner wall of the sliding groove. A support rod is rotatably connected inside the rotating cylinder, and a connecting plate is fixedly connected to the end of the support rod. A pressure rod is fixedly connected to the inner side of the connecting plate, and the pressure rod is slidably connected inside the support base. A pressure head is fixedly connected to the lower end of the pressure rod, and a mold is slidably connected inside the support base.

[0007] Preferably, the pressure rod is fixedly connected to the support rod via a connecting plate.

[0008] Preferably, the upper side of the mold has a slot with the same structure as the pressure head.

[0009] Preferably, multiple support rods are provided.

[0010] Preferably, the auxiliary mechanism includes an eccentric sleeve, which is fixedly connected to the outer wall of the motor output end. A drive groove is provided on the side of the eccentric sleeve that is close to the motor output end. A rotating ring is slidably connected to the inner wall of the drive groove. A push rod is rotatably connected to the inner wall of the rotating ring. A sliding rod is fixedly connected to the outer wall of the lower end of the push rod. A feeding box is fixedly connected to one end of the push rod. A mounting bracket is fixedly connected to one side of the support. The sliding rod is slidably connected inside the mounting bracket. Fasteners are threaded inside the mounting bracket. A support sleeve is fixedly connected to the upper surface of the support base. A piston disc is slidably and sealed inside the support sleeve. A hydraulic cylinder is fixedly connected to the lower side of the support. A pressure transmission pipe is provided between the hydraulic cylinder and the support sleeve. A piston plate is slidably and sealed inside the hydraulic cylinder. A ejector pin is fixedly connected to the upper side of the piston plate. A feeding pipe is provided on one side of the feeding box.

[0011] Preferably, the slide bar has a square cross-section.

[0012] Preferably, the fastener is threadedly connected to the mold.

[0013] Compared with the prior art, this utility model provides a single-punch tablet press with a quick mold-changing function, which has the following beneficial effects:

[0014] 1. The auxiliary mechanism is used for loading and unloading. This mechanism achieves multi-level coordination with the stamping mechanism through linkage, so that the device can carry out loading, stamping and unloading work in a continuous manner. Each work does not interfere with the others, which can reduce the difficulty of user debugging and improve the practicality of the device.

[0015] 2. The stamping mechanism is used to complete the pressing of materials. This mechanism uses a motor to drive the eccentric wheel. This mechanism is easy to disassemble and does not require a linkage structure, thereby improving the space utilization. At the same time, this mechanism is independent of the auxiliary mechanism, so that maintenance work will not be difficult due to the complexity of the structure and it is easy to replace the mold. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a structural schematic diagram from another perspective of the present invention;

[0019] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0020] Figure 4 This is a schematic diagram of the mounting platform in this utility model;

[0021] Figure 5 This is a schematic diagram of the eccentric sleeve in this utility model.

[0022] In the diagram: 1. Base; 2. Piston rod; 3. Slide cylinder; 4. Support; 5. Support base; 6. Stamping mechanism; 601. Mounting platform; 602. Sleeve; 603. Motor; 604. Eccentric disc; 605. Stop sleeve; 606. Slide groove; 607. Rotary cylinder; 608. Support rod; 609. Connecting disc; 610. Pressure rod; 611. Pressure head; 612. Mold; 7. Auxiliary mechanism; 701. Eccentric sleeve; 702. Drive groove; 703. Rotary ring; 704. Push rod; 705. Slide rod; 706. Material box; 707. Mounting bracket; 708. Fastener; 709. Support sleeve; 710. Piston disc; 711. Hydraulic cylinder; 712. Pressure transmission pipe; 713. Piston plate; 714. Ejector pin; 715. Feeding pipe. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] Example 1:

[0026] This mechanism is used for stamping tablets. It utilizes an eccentric structure for drive and solves the problems of difficult disassembly and space-consuming linkages. (See also...) Figure 1-5 This utility model provides a technical solution: a single-punch tablet press with a quick mold changing function, including a base 1, a piston rod 2 fixedly connected to the upper surface of the base 1, a slide cylinder 3 slidably connected to the outer wall of the upper end of the piston rod 2, a support 4 and a support seat 5 fixedly connected to the outer wall of the slide cylinder 3, a punching mechanism 6 and an auxiliary mechanism 7 are provided on the upper side of the slide cylinder 3, and the auxiliary mechanism 7 is provided on the outside of the punching mechanism 6.

[0027] The stamping mechanism 6 includes a mounting platform 601, which is fixedly connected to the upper end of the slide cylinder 3. A sleeve 602 is fixedly connected to one side of the mounting platform 601. A motor 603 is fixedly connected inside the sleeve 602. An eccentric disk 604 is fixedly connected to the output end of the motor 603. The eccentric disk 604 is located inside the mounting platform 601. A retaining sleeve 605 is fixedly connected to the output end of the motor 603. The retaining sleeve 605 is located outside the mounting platform 601. A sliding groove 606 is opened inside the eccentric disk 604. A rotating cylinder 607 is slidably connected to the inner wall of the sliding groove 606. A support rod 608 is rotatably connected inside the rotating cylinder 607. A connecting plate 609 is fixedly connected to the end of the support rod 608. A pressure rod 610 is fixedly connected to the inner side of the connecting plate 609. The pressure rod 610 is slidably connected inside the support base 5. A pressure head 611 is fixedly connected to the lower end of the pressure rod 610. A mold 612 is slidably connected inside the support base 4.

[0028] Furthermore, the pressure rod 610 is fixedly connected to the support rod 608 via the connecting plate 609.

[0029] Furthermore, the upper side of the mold 612 has a slot with the same structure as the pressure head 611.

[0030] Furthermore, multiple support rods 608 are provided.

[0031] Example 2:

[0032] This mechanism is used to complete the loading and unloading of finished products. This mechanism, in conjunction with the stamping mechanism 6, solves the problem of inconvenient mold replacement 612. Please refer to [link / reference]. Figure 1-5 Furthermore, in conjunction with Embodiment 1, the auxiliary mechanism 7 includes an eccentric sleeve 701, which is fixedly connected to the outer wall of the output end of the motor 603. A drive groove 702 is provided on the side of the eccentric sleeve 701 that is close to it. A rotating ring 703 is slidably connected to the inner wall of the drive groove 702. A push rod 704 is rotatably connected to the inner wall of the rotating ring 703. A slide rod 705 is fixedly connected to the outer wall of the lower end of the push rod 704. A feeding box 706 is fixedly connected to one end of the push rod 704. A mounting bracket 707 is fixedly connected to one side of the support 4. The slide rod 705 is slidably connected to... The mounting bracket 707 is connected to the inside of the mounting bracket 707. Fasteners 708 are threaded inside the mounting bracket 707. A support sleeve 709 is fixedly connected to the upper surface of the support base 5. A piston disc 710 is sealed and slidably connected inside the support sleeve 709. A hydraulic cylinder 711 is fixedly connected to the lower side of the support 4. A pressure transmission pipe 712 is provided to communicate with the inside of the hydraulic cylinder 711 and the support sleeve 709. A piston plate 713 is sealed and slidably connected inside the hydraulic cylinder 711. A ejector pin 714 is fixedly connected to the upper side of the piston plate 713. A feeding pipe 715 is provided to communicate with one side of the feeding box 706.

[0033] Furthermore, the slide bar 705 has a square cross-section.

[0034] Furthermore, fastener 708 is threadedly connected to mold 612.

[0035] In actual operation, when this device is in use, the user can supply materials to the inside of the unloading box 706 through the feeding pipe 715. After the user has prepared the materials, the user can start the motor 603. When the motor 603 outputs, it drives the eccentric disk 604 and the eccentric sleeve 701 to rotate. When the eccentric disk 604 drives the pressure rod 610 to press down, the unloading box 706 and the ejector pin 714 move away from the pressure rod 610 in sync. When the pressure rod 610 is raised, the piston disk 710 moves and generates hydraulic pressure to raise the ejector pin 714 so as to lift the pressed finished product. At the same time, the eccentric sleeve 701 drives the push rod 704 to make the unloading box 706 slide on the upper surface of the mold 612, thus completing the pushing open of the finished product and refilling. When the user needs to replace the mold 612, he / she can unscrew the fastener 708 and remove the mold 612 for replacement.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A single-punch tablet press with quick mold changing function, comprising a base (1), a piston rod (2) fixedly connected to the upper surface of the base (1), a slide cylinder (3) slidably connected to the outer wall of the upper end of the piston rod (2), and a support (4) and a base (5) fixedly connected to the outer wall of the slide cylinder (3), characterized in that: The upper side of the slide (3) is provided with a stamping mechanism (6) and an auxiliary mechanism (7), and the auxiliary mechanism (7) is located outside the stamping mechanism (6); The stamping mechanism (6) includes a mounting platform (601), which is fixedly connected to the upper end of the slide cylinder (3). A sleeve (602) is fixedly connected to one side of the mounting platform (601). A motor (603) is fixedly connected inside the sleeve (602). An eccentric disk (604) is fixedly connected to the output end of the motor (603). The eccentric disk (604) is located inside the mounting platform (601). A retaining sleeve (605) is fixedly connected to the output end of the motor (603). The retaining sleeve (605) is located outside the mounting platform (601). The eccentric disc (604) has a sliding groove (606) inside. A rotating cylinder (607) is slidably connected to the inner wall of the sliding groove (606). A support rod (608) is rotatably connected inside the rotating cylinder (607). A connecting plate (609) is fixedly connected to the end of the support rod (608). A pressure rod (610) is fixedly connected to the inner side of the connecting plate (609). The pressure rod (610) is slidably connected inside the support base (5). A pressure head (611) is fixedly connected to the lower end of the pressure rod (610). A mold (612) is slidably connected inside the support base (4).

2. A single-punch tablet press with quick mold changing function according to claim 1, characterized in that: The pressure rod (610) is fixedly connected to the support rod (608) via the connecting plate (609).

3. A single-punch tablet press with quick mold changing function according to claim 1, characterized in that: The mold (612) has a slot on its upper side with the same structure as the pressure head (611).

4. A single-punch tablet press with quick mold changing function according to claim 1, characterized in that: Multiple support rods (608) are provided.

5. A single-punch tablet press with quick mold changing function according to claim 1, characterized in that: The auxiliary mechanism (7) includes an eccentric sleeve (701), which is fixedly connected to the outer wall of the output end of the motor (603). A drive groove (702) is provided on the side of the eccentric sleeve (701) that is close to it. A rotating ring (703) is slidably connected to the inner wall of the drive groove (702). A push rod (704) is rotatably connected to the inner wall of the rotating ring (703). A slide rod (705) is fixedly connected to the lower outer wall of the push rod (704). A feeding box (706) is fixedly connected to one end of the push rod (704). A mounting bracket (707) is fixedly connected to one side of the support (4). The slide rod (705) is slidably connected to the mounting bracket (706). 07) Inside, the mounting bracket (707) is threaded with fasteners (708), the upper surface of the support base (5) is fixedly connected with a sleeve (709), the sleeve (709) is sealed and slidably connected with a piston disc (710), the lower side of the support (4) is fixedly connected with a hydraulic cylinder (711), the hydraulic cylinder (711) and the sleeve (709) are connected with a pressure transmission pipe (712), the hydraulic cylinder (711) is sealed and slidably connected with a piston plate (713), the upper side of the piston plate (713) is fixedly connected with a ejector pin (714), and the side of the feeding box (706) is connected with a feeding pipe (715).

6. A single-punch tablet press with quick mold changing function according to claim 5, characterized in that: The slide bar (705) has a square cross-section.

7. A single-punch tablet press with quick mold changing function according to claim 5, characterized in that: The fastener (708) is threadedly connected to the mold (612).

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