Dry ice briquetting machine

Abstract

The invention provides a dry ice briquetting machine. The dry ice briquetting machine comprises an upper mold pressing mechanism, a lower mold thickness adjusting mechanism and a demolding mechanism. The upper die pressing mechanism comprises a base, an upper die and a pressing driving assembly, and the pressing driving assembly is erected on the base and connected with the upper die; the lower die thickness adjusting mechanism comprises a lower die, jacking dies, an upper sliding block, a middle sliding block, a lower sliding block and an adjusting bolt, the lower die is fixedly erected on the base and is provided with a plurality of forming cavities, the jacking dies penetrate through the forming cavities in a lifting sliding mode, the multiple jacking dies are borne on the upper sliding block, the lower sliding block is fixed to the base, and the adjusting bolt is fixed to the base. The middle sliding block is arranged between the upper sliding block and the lower sliding block in a sliding mode, the upper surface and the lower surface of the middle sliding block, the lower surface of the upper sliding block and the upper surface of the lower sliding block are slopes matched with one another, and the adjusting bolt is connected to the base and the middle sliding block. According to the dry ice briquetting machine, energy consumption and equipment cost can be reduced, and the service life of equipment is prolonged; and accurate adjustment of the thickness of the dry ice block body can be conveniently realized.

Description

Technical Field

[0001] The present invention relates to the technical field of dry ice manufacturing and molding, and in particular to a dry ice briquetting machine. Background Art

[0002] A dry ice briquetting machine is used to compress dry ice pellets into dry ice blocks, making them easier to transport and use. Traditional dry ice briquetting machines include an upper mold pressing mechanism and a lower mold demolding mechanism. The lower mold demolding mechanism includes a demolding cylinder and a lower mold, with the demolding cylinder directly driving the lower mold up and down. The upper mold pressing mechanism includes a demolding cylinder and an upper mold. When the lower mold pressing mechanism drives the upper mold down, the demolding cylinder must withstand the same force as the lower mold pressing mechanism. This results in a high power requirement for the demolding cylinder, increasing energy consumption and equipment costs. Furthermore, long-term high-load operation can exacerbate wear on the demolding cylinder, shortening the equipment's lifespan. Furthermore, current dry ice briquetting machines struggle to precisely adjust the thickness of dry ice blocks of varying thicknesses. Therefore, there is an urgent need to design a machine that can address the issues of high energy consumption, high equipment costs, and a short service life, while also resolving the difficulty of adjusting the thickness of dry ice blocks. Summary of the Invention

[0003] In view of the above, the present invention provides a dry ice briquetting machine to reduce energy consumption and equipment costs, and to increase the service life of the equipment; and to facilitate the precise adjustment of the thickness of the dry ice blocks.

[0004] The technical solution of the present invention: The present invention provides a dry ice briquetting machine, comprising an upper mold pressing mechanism, a lower mold thickness adjusting mechanism and a demoulding mechanism; The upper mold pressing mechanism includes a base, an upper mold and a pressing drive assembly. The upper mold is mounted on the base in a liftable manner. The pressing drive assembly is mounted on the base and connected to the upper mold to drive the upper mold to move up and down. The lower mold thickness adjustment mechanism includes a lower mold, a lifting mold, an upper slider, a middle slider, a lower slider and an adjusting bolt. The lower mold is fixedly mounted on the base and has multiple molding cavities. The molding cavities pass through the upper and lower surfaces of the lower mold. A lifting mold is inserted in each molding cavity so as to be able to be lifted and slid. The multiple lifting molds are carried on the upper slider. The lower slider is fixed to the base. The middle slider is slidably arranged between the upper slider and the lower slider. The upper and lower surfaces of the middle slider, the lower surface of the upper slider and the upper surface of the lower slider are all inclined surfaces that match each other. The upper surface of the upper slider and the lower surface of the lower slider are both horizontal surfaces. The adjusting bolt is connected to the base and the middle slider to drive the middle slider to slide horizontally by rotating the adjusting bolt, thereby adjusting the height position of the lifting mold in the molding cavity. The demoulding mechanism includes a demoulding drive, a lifting plate and a push rod. The demoulding drive is fixed to the base, the lifting plate is fixed to the lifting end of the demoulding drive, and multiple push rods are vertically fixed to the lifting plate. The lower slider is provided with multiple lower sliding holes, the middle slider is provided with a slide groove corresponding to each row of lower sliding holes, and the upper slider is provided with an upper sliding hole corresponding to each lower sliding hole. Each push rod can be lifted and slidably passed through the corresponding lower sliding hole, slide groove and upper sliding hole. Each push rod corresponds to each lifting mold one by one. Under the drive of the demoulding drive, the upper end of the push rod can be lifted to contact or lowered to detach from the lifting mold to eject the dry ice block in the molding cavity.

[0005] Furthermore, one end of the adjusting bolt is rotatably connected to the base and axially limited at the base, and the other end of the adjusting bolt is threadedly connected to the middle slider; Alternatively, one end of the adjusting bolt is threadedly connected to the base, and the other end of the adjusting bolt is rotatably connected to the middle slider and is axially limited to the middle slider.

[0006] Furthermore, the upper and lower inclined surfaces of the middle slider are both provided with guide rails, the lower inclined surface of the upper slider and the upper inclined surface of the lower slider are both provided with guide grooves, and the guide rails are slidably installed in the guide grooves.

[0007] Furthermore, the upper mold pressing mechanism includes a guide frame, which includes guide rods, a lifting plate and a fixed plate. The four guide rods are fixedly arranged on the base, and the lifting plate can be lifted and slidably mounted on the four guide rods. The upper mold is fixed below the lifting plate, the fixed plate is fixed to the top of the four guide rods and is located above the lifting plate, and the pressing drive assembly is arranged on the lifting plate.

[0008] Furthermore, the downward pressure drive assembly includes a downward pressure motor, a screw rod and a nut. The downward pressure motor is mounted on a fixed plate. The two ends of the screw rod are rotatably mounted on the base and the fixed plate respectively. There are two screw rods arranged in parallel and respectively located between the two guide rods. The two nuts are fixed on the lifting plate at intervals. The two screw rods are respectively screwed through the two nuts. The output shaft of the downward pressure motor is connected to the two screw rods to drive the two screw rods to rotate so that the nut drives the lifting plate to rise and fall and slide.

[0009] Furthermore, the downward pressure drive assembly includes a driving gear, a driven gear and a transmission gear. The driving gear is fixed to the output shaft of the downward pressure motor. A driven gear is fixed to the top of each screw rod. The two driven gears are located on opposite sides of the driving gear. A transmission gear is meshed and installed between the driving gear and each driven gear. The transmission gear can be rotatably installed on the fixed plate.

[0010] Furthermore, the base includes a bottom plate, a side plate and a support frame. The two side plates are fixed and erected in parallel on one opposite side of the bottom plate, and the two support frames are fixed and erected in parallel on the other opposite side of the bottom plate, forming an installation space for accommodating the lower mold thickness adjustment mechanism. The two sides of the lower mold are respectively fixed on the two support frames, and the bottom end of each screw rod and guide rod is fixed on the corresponding side plate. The adjusting bolt is installed on a side plate, and a lifting port for lifting the lifting plate and the push rod is opened at the center position of the bottom plate.

[0011] Furthermore, it includes a frame and a loading and unloading mechanism, the upper mold pressing mechanism is arranged on the frame, and the loading and unloading mechanism is arranged on the frame and located on the loading side of the upper mold pressing mechanism to put dry ice particles into the lower mold and push out the formed dry ice blocks.

[0012] Furthermore, the loading and unloading mechanism includes horizontal rails, a feeding frame, a lower hopper, a carrying plate, a sealing plate and a telescopic driving member. The two horizontal rails are fixed in parallel on the frame and the lower mold. The feeding frame is slidably arranged between the two horizontal rails. The lower hopper is installed on the frame and is located above the feeding frame. The carrying plate is fixed on the two horizontal rails and is located at the bottom of the sealing feeding frame to carry the dry ice particles falling from the lower hopper. The sealing plate is fixed at one end of the feeding frame to block the lower hopper when the feeding frame leaves the lower hopper. The telescopic driving member is fixed on the frame and is transmission-connected to the feeding frame to drive the feeding frame to slide along the horizontal rails.

[0013] Furthermore, a vibration motor is fixed on the outer side of the lower hopper. The dry ice briquetting machine provided by the present invention has shown significant creativity and practicality compared to traditional designs, and the specific beneficial effects are as follows: 1. Reduction of energy consumption and equipment costs: By optimizing the design of the upper mold pressing mechanism and the demoulding mechanism, the present invention significantly reduces the energy consumption requirements during the operation of the equipment. In particular, the improvement of the demoulding mechanism, when the upper mold is pressed down onto the lower mold, since the lower mold is fixedly mounted on the base, the downward pressure of the upper mold acts on the base, and the ejector pin on the demoulding drive is in a descending state and does not transmit force to the upper mold, thereby avoiding impact damage to the demoulding drive. The demoulding drive only needs to exert force to push up the mold to demould. The power required by the demoulding drive is relatively small, and the cost is relatively low, which reduces the dependence on high-power cylinders during the demoulding process, thereby reducing the manufacturing cost and operating cost of the equipment.

[0014] Second, it improves equipment lifespan: By reducing energy-intensive operations and utilizing precise coordination and adjustment mechanisms between components, this invention effectively extends the overall service life of the dry ice briquetting machine. In particular, the ingenious design of the lower mold thickness adjustment mechanism allows precise height adjustment of the jacking mold simply by adjusting the bolts, eliminating the wear and tear associated with frequent mold changes and component adjustments in traditional designs.

[0015] 3. Precisely Adjust the Thickness of the Dry Ice Block: The introduction of a lower mold thickness adjustment mechanism makes adjusting the thickness of the dry ice block more convenient and precise. By rotating the adjustment bolt, the inclined surfaces between the middle, upper, and lower slides cooperate to adjust the height of the lift mold within the molding cavity, thereby precisely controlling the thickness of the dry ice block to meet the needs of different application scenarios.

[0016] Fourth, improved production efficiency and product quality: The dry ice briquetting machine of this invention reduces energy consumption and costs while also improving production efficiency and product quality. The rapid response and precise control of the upper mold and lower pressure mechanism ensure uniform force and stable formation of dry ice blocks during the molding process. The efficient demolding mechanism further shortens the production cycle and improves overall production efficiency.

[0017] In summary, the dry ice briquetting machine provided by the present invention has shown significant beneficial effects in terms of energy consumption, equipment cost, service life, thickness adjustment accuracy, production efficiency and product quality, and has broad application prospects and market value.

[0018] The preferred embodiments of the present invention and their beneficial effects will be further described in detail in conjunction with specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following detailed description, they are used to explain the present invention but should not be construed as limiting the present invention. In the accompanying drawings: Figure 1 This is a three-dimensional assembly diagram of the dry ice briquetting machine of the present invention; Figure 2 This is a front view of the dry ice briquetting machine of the present invention; Figure 3 This is an assembly diagram of the upper mold pressing mechanism, lower mold thickness adjustment mechanism, and demoulding mechanism of the dry ice briquetting machine of the present invention; Figure 4 A three-dimensional diagram of the lower mold thickness adjustment mechanism of the dry ice briquetting machine of the present invention; Figure 5 This is a front view of the lower mold thickness adjustment mechanism of the dry ice briquetting machine of the present invention; Figure 6 This is an exploded view of the lower mold thickness adjustment mechanism of the dry ice briquetting machine of the present invention; Figure 7 A perspective view of the demoulding mechanism of the dry ice briquetting machine of the present invention; Figure 8 A three-dimensional diagram of the upper mold and lower pressing mechanism of the dry ice briquetting machine of the present invention; Figure 9 This is a structural diagram of the loading and unloading mechanism of the dry ice briquetting machine of the present invention.

[0020] Description of the accompanying symbols: upper mold pressing mechanism 1, lower mold thickness adjustment mechanism 2, demoulding mechanism 3, base 11, upper mold 12, pressing drive assembly 13, lower mold 21, lifting mold 22, upper slider 23, middle slider 24, lower slider 25, adjusting bolt 26, molding cavity 20, demoulding drive member 31, lifting plate 32, ejector rod 33, lower sliding hole 251, slide groove 241, upper sliding hole 231, guide rail 27, guide groove 28, guide frame 1 4. Guide rod 141, lifting plate 142, fixing plate 143, pressing motor 131, screw rod 132, nut 133, driving gear 134, driven gear 135, transmission gear 136, bottom plate 111, side plate 112, support frame 113, lifting port 110, frame 4, loading and unloading mechanism 5, horizontal rail 51, feeding frame 52, hopper 53, carrying plate 54, blocking plate 55, telescopic drive member 56, vibration motor 57. DETAILED DESCRIPTION

[0021] The following describes the specific embodiments of the present invention in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention and are not intended to limit the present invention.

[0022] See also Figures 1 to 3 The present invention provides a dry ice briquetting machine, comprising an upper mold pressing mechanism 1, a lower mold thickness adjusting mechanism 2 and a demoulding mechanism 3.

[0023] The upper mold pressing mechanism 1 includes a base 11, an upper mold 12 and a pressing drive assembly 13. The upper mold 12 is mounted on the base 11 in a liftable manner. The pressing drive assembly 13 is mounted on the base 11 and connected to the upper mold 12 to drive the upper mold 12 to move up and down.

[0024] See also Figures 4 to 6 The lower mold thickness adjustment mechanism 2 includes a lower mold 21, a lifting mold 22, an upper slider 23, a middle slider 24, a lower slider 25 and an adjusting bolt 26. The lower mold 21 is fixedly mounted on the base 11 and is provided with a plurality of molding cavities 20, which pass through the upper and lower surfaces of the lower mold 21. A lifting mold 22 is inserted into each molding cavity 20 so as to be able to be lifted and slidably. A plurality of lifting molds 22 are carried on the upper slider 23, and the lifting molds 22 are not connected to the upper slider 23. The lower slider 25 is fixed to the base 11. The middle slider 24 is slidably arranged between the upper slider 23 and the lower slider 25. The upper and lower surfaces of the middle slider 24, the lower surface of the upper slider 23 and the upper surface of the lower slider 25 are all inclined surfaces that match each other. The upper surface of the upper slider 23 and the lower surface of the lower slider 25 are both horizontal surfaces. The adjusting bolt 26 is connected to the base 11 and the middle slider 24 , so that the middle slider 24 can be driven to slide horizontally by rotating the adjusting bolt 26 , thereby adjusting the height position of the jacking mold 22 in the molding cavity 20 .

[0025] See also Figure 7 The demolding mechanism 3 includes a demolding drive 31, a lifting plate 32, and ejector pins 33. The demolding drive 31 is fixed to the base 11, the lifting plate 32 is fixed to the lifting end of the demolding drive 31, and multiple ejector pins 33 are vertically fixed to the lifting plate 32. The lower slider 25 has multiple lower sliding holes 251, the middle slider 24 has a slide groove 241 corresponding to each row of lower sliding holes 251, and the upper slider 23 has an upper sliding hole 231 corresponding to each lower sliding hole 251. Each ejector pin 33 is slidably positioned within the corresponding lower sliding hole 251, slide groove 241, and upper sliding hole 231. Each ejector pin 33 corresponds to a corresponding ejection mold 22. Driven by the demolding drive 31, the upper end of the ejector pin 33 can be raised to contact or lowered away from the ejection mold 22 to eject the dry ice block from the molding cavity 20. The demolding drive 31 can be a telescopic drive device such as a push rod motor or a cylinder.

[0026] The dry ice briquetting machine provided by the present invention has shown significant creativity and practicality compared to traditional designs, and the specific beneficial effects are as follows: 1. Reduction of energy consumption and equipment costs: By optimizing the design of the upper mold pressing mechanism and the demoulding mechanism, the present invention significantly reduces the energy consumption requirements during the operation of the equipment. In particular, the improvement of the demoulding mechanism 3, when the upper mold 12 is pressed down onto the lower mold 21, since the lower mold 21 is fixedly mounted on the base 11, the downward pressure of the upper mold 12 acts on the base 11, and the ejector rod 33 on the demoulding drive 31 is in a descending state and does not transmit force to the upper mold 12, thereby avoiding impact damage to the demoulding drive 31. The demoulding drive 31 only needs to exert force to push up the mold 22 to demould. The power required by the demoulding drive 31 is relatively small, and the cost is relatively low, which reduces the dependence on high-power cylinders during the demoulding process, thereby reducing the manufacturing cost and operating cost of the equipment.

[0027] Second, it improves equipment lifespan: By reducing energy-intensive operations and utilizing precise coordination and adjustment mechanisms between components, the present invention effectively extends the overall service life of the dry ice briquetting machine. In particular, the ingenious design of the lower mold thickness adjustment mechanism 2 allows precise height adjustment of the lifting mold 22 by adjusting bolts 26, eliminating the wear and tear associated with frequent mold changes and component adjustments in traditional designs.

[0028] 3. Precise Adjustment of Dry Ice Block Thickness: The introduction of the lower mold thickness adjustment mechanism 2 makes adjusting the thickness of dry ice blocks more convenient and precise. By rotating the adjustment bolt 26, the inclined surfaces between the middle slider 24, upper slider 23, and lower slider 25 cooperate to adjust the height of the lifting mold 22 within the molding cavity 20, thereby precisely controlling the thickness of the dry ice block to meet the needs of different application scenarios.

[0029] Fourth, improved production efficiency and product quality: The dry ice briquetting machine of the present invention reduces energy consumption and costs while also improving production efficiency and product quality. The rapid response and precise control of the upper mold lowering mechanism 1 ensures uniform force and stable formation of dry ice blocks during the molding process. The efficient demolding capability of the demolding mechanism 3 further shortens the production cycle and improves overall production efficiency.

[0030] In summary, the dry ice briquetting machine provided by the present invention has shown significant beneficial effects in terms of energy consumption, equipment cost, service life, thickness adjustment accuracy, production efficiency and product quality, and has broad application prospects and market value.

[0031] In this embodiment, one end of the adjusting bolt 26 is rotatably connected to the base 11 and axially limited to the base 11, and the other end of the adjusting bolt 26 is threadedly connected to the middle slider 24. In other embodiments, one end of the adjusting bolt 26 is threadedly connected to the base 11, and the other end of the adjusting bolt 26 is rotatably connected to the middle slider 24 and axially limited to the middle slider 24.

[0032] In this embodiment, guide rails 27 are provided on the upper and lower inclined surfaces of the middle slider 24, and guide grooves 28 are provided on the lower inclined surface of the upper slider 23 and the upper inclined surface of the lower slider 25. The guide rails 27 are slidably installed in the guide grooves 28 to slide the middle slider 24 between the upper slider 23 and the lower slider 25.

[0033] See also Figure 8 In this embodiment, the upper mold pressing mechanism 1 includes a guide frame 14, and the pressing drive assembly 13 is mounted on the base 11 through the guide frame 14. The guide frame 14 includes guide rods 141, a lifting plate 142, and a fixed plate 143. Four guide rods 141 are fixedly mounted on the base 11, and the lifting plate 142 is mounted on the four guide rods 141 in a lifting and sliding manner. The upper mold 12 is fixed below the lifting plate 142. The fixed plate 143 is fixed to the top of the four guide rods 141 and is located above the lifting plate 142. The pressing drive assembly 13 is arranged on the lifting plate 142.

[0034] In this embodiment, the downward pressure drive assembly 13 includes a downward pressure motor 131, a screw rod 132 and a nut 133. The downward pressure motor 131 is mounted on the fixed plate 143. The two ends of the screw rod 132 are rotatably mounted on the base 11 and the fixed plate 143 respectively. There are two screw rods 132 arranged in parallel, and are respectively located between the two guide rods 141. The two nuts 133 are fixed on the lifting plate 142 at intervals, and the two screw rods 132 are screwed through the two nuts 133 respectively. The output shaft of the downward pressure motor 131 is connected to the two screw rods 132 to drive the two screw rods 132 to rotate so that the nut 133 drives the lifting plate 142 to rise and fall and slide.

[0035] In this embodiment, the output shaft of the downward pressure motor 131 is connected to the two screw rods 132 through a gear transmission. The downward pressure drive assembly 13 includes a driving gear 134, a driven gear 135 and a transfer gear 136. The driving gear 134 is fixed to the output shaft of the downward pressure motor 131. A driven gear 135 is fixed to the top of each screw rod 132. The two driven gears 135 are respectively located on opposite sides of the driving gear 134. A transfer gear 136 is meshed and installed between the driving gear 134 and each driven gear 135. The transfer gear 136 is rotatably mounted on the fixed plate 143. It can be understood that in addition to using gear transmission, the output shaft of the downward pressure motor 131 can also use belt transmission, chain transmission, etc.

[0036] A downward pressure motor 131 is used as the power source, and a gear transmission system (including a driving gear, a driven gear, and a transfer gear) transmits power to two parallel screw rods 132. This design ensures smooth and efficient power transmission, allowing the lifting plate 142 to rise and slide smoothly and quickly, meeting the requirements of high precision and high efficiency.

[0037] The two screw rods 132 are arranged parallel to each other between the two guide rods 141, which not only enhances the stability of the overall structure but also makes the lifting motion more stable. The screw connection between the nut 133 and the screw rod 132 ensures precise control during the lifting process and avoids shaking or offset.

[0038] Through the gear transmission system, the power of the downward pressure motor 131 can be synchronously transmitted to the two screws 132, ensuring that the two screws remain synchronized during the rotation process, thereby driving the lifting plate to rise and fall smoothly. This synchronous drive method effectively reduces the errors caused by the asynchronous screws and improves the accuracy and reliability of the equipment.

[0039] Compared with the conventional technology that uses a hydraulic drive device to drive the lifting, the present invention's downward driving assembly 13 uses a downward motor 131, a screw rod 132 and a nut 133 to drive the lifting plate 142 to move up and down, which has several significant advantages: 1. High energy conversion efficiency: The energy conversion efficiency of electric motor drive can reach over 90%, which is much higher than the 70%-80% of hydraulic drive. This means that under the same energy input, electric motor drive can more efficiently convert it into mechanical energy, reducing energy waste.

[0040] 2. High-precision control: The motor drive has the characteristics of high-precision control, which can achieve precise speed and position control. It is suitable for applications with high precision requirements for dry ice blocks of different thicknesses.

[0041] 3. Flexible control methods: The motor drive control methods are flexible and diverse, which can realize a variety of motion modes and motion control algorithms to meet complex and changing control needs.

[0042] 4. Clean and pollution-free: The motor does not produce any harmful substances during the driving process, and the operation is environmentally friendly and safe. There is no need to worry about environmental pollution such as oil leakage.

[0043] 5. Simplified system structure: The motor drive system is relatively simple and does not require complex hydraulic pumps, hydraulic cylinders, oil pipes and other components, reducing the complexity and maintenance costs of the system.

[0044] 6. Easy to maintain: The maintenance of motor drive is relatively simple, and there is no need to frequently replace hydraulic oil and other media, which reduces the difficulty and cost of maintenance.

[0045] 7. Fast response: The motor drive has a fast response speed and can respond to control signals quickly, which is suitable for application scenarios that require fast response.

[0046] In summary, compared with hydraulic drive, electric drive has obvious advantages in energy conversion efficiency, control accuracy, environmental protection, system structure, maintenance cost and response speed.

[0047] In this embodiment, the base 11 includes a bottom plate 111, side plates 112 and a support frame 113. Two side plates 112 are fixed and erected in parallel on one opposite side of the bottom plate 111, and two support frames 113 are fixed and erected in parallel on the other opposite side of the bottom plate 111, forming an installation space for accommodating the lower mold thickness adjustment mechanism 2. The two sides of the lower mold 21 are respectively fixed on the two support frames 113. The bottom end of each screw rod 132 and guide rod 141 is fixed to the corresponding side plate 112. The adjusting bolt 26 is installed on a side plate 112. A lifting port 110 for lifting and lowering the lifting plate 32 and the push rod 33 is opened at the center of the bottom plate 111.

[0048] Two side panels 112 are fixed parallel to opposite sides of the base plate 111, forming a sturdy support structure that effectively enhances the overall stability of the base. Simultaneously, two support frames 113 are fixed parallel to the other opposite sides of the base plate, providing reliable anchor points for the lower mold 21 and further enhancing the overall base's load-bearing capacity and resistance to deformation.

[0049] The rational layout of the support frame 113 and the side panels 112 forms a spacious and easy-to-operate installation space, which is convenient for the installation, commissioning and maintenance of the lower die thickness adjustment mechanism 2. This design not only improves work efficiency, but also reduces operational difficulty and ensures stable operation of the equipment.

[0050] See also Figure 2 and Figure 9The dry ice briquetting machine provided by the present invention includes a frame 4 and a loading and unloading mechanism 5. The upper mold pressing mechanism 1 is mounted on the frame 4. The loading and unloading mechanism 5 is mounted on the frame 4 and located on the loading side of the upper mold pressing mechanism 1 to feed dry ice pellets into the lower mold 21 and push out the formed dry ice blocks.

[0051] In this embodiment, the loading and unloading mechanism 5 includes horizontal rails 51, a feeding frame 52, a lower hopper 53, a supporting plate 54, a blocking plate 55, and a telescopic drive member 56. The two horizontal rails 51 are fixed parallel to the frame 4 and the lower mold 21. The feeding frame 52 is slidably arranged between the two horizontal rails 51. The lower hopper 53 is mounted on the frame 4 and is located above the feeding frame 52. The supporting plate 54 is fixed to the two horizontal rails 51 and is located at the bottom of the blocking feeding frame 52 to support the dry ice particles falling from the lower hopper 53. The blocking plate 55 is fixed to one end of the feeding frame 52 to block the lower hopper 53 when the feeding frame 52 leaves the lower hopper 53. The telescopic drive member 56 is fixed to the frame 4 and is in transmission connection with the feeding frame 52 to drive the feeding frame 52 to slide along the horizontal rails 51. The dry ice pellets falling from the lower hopper 53 enter the feeding frame 52. The telescopic drive member 56 drives the feeding frame 52 to move directly above the lower mold 21. The feeding frame 52 pushes out the dry ice blocks lifted up by the demolding mechanism 3. The dry ice pellets in the feeding frame 52 break free from the support of the supporting plate 54 and fall into the lower mold 21. At the same time, the blocking plate 55 moves synchronously with the feeding frame 52 and blocks the lower hopper 53, preventing the dry ice pellets from falling.

[0052] In order to ensure smoother falling of the dry ice pellets, a vibration motor 57 is fixed to the outside of the lower hopper 53 .

[0053] In the description of the present invention, it should be noted that the terms "upper" and "lower" and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying importance. The terms "bottom" and "top," as well as "inner" and "outer," refer to directions toward or away from a specific component, respectively.

[0054] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium, or they can refer to connections between the internal parts of two components. A person of ordinary skill in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances. In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0055] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A dry ice briquetting machine, characterized in that: It comprises an upper die pressing mechanism (1), a lower die thickness adjusting mechanism (2) and a demoulding mechanism (3); The upper mold pressing mechanism (1) comprises a base (11), an upper mold (12) and a pressing drive assembly (13); the upper mold (12) is mounted on the base (11) in a manner that it can be raised or lowered; the pressing drive assembly (13) is mounted on the base (11) and is connected to the upper mold (12) to drive the upper mold (12) to be raised or lowered; The lower mold thickness adjustment mechanism (2) comprises a lower mold (21), a lifting mold (22), an upper slider (23), a middle slider (24), a lower slider (25) and an adjustment bolt (26); the lower mold (21) is fixedly mounted on a base (11) and is provided with a plurality of molding cavities (20); the molding cavities (20) penetrate the upper and lower surfaces of the lower mold (21); a lifting mold (22) is inserted in each molding cavity (20) in a manner that it can be lifted and slidably inserted; the plurality of lifting molds (22) are supported on the upper slider (23); the lower slider (25) is fixed to the base (11); the middle slider (24) is provided with a plurality of molding cavities (20); The slider (24) is slidably arranged between the upper slider (23) and the lower slider (25); the upper and lower surfaces of the middle slider (24), the lower surface of the upper slider (23) and the upper surface of the lower slider (25) are all inclined surfaces that match each other; the upper surface of the upper slider (23) and the lower surface of the lower slider (25) are both horizontal surfaces; the adjusting bolt (26) is connected to the base (11) and the middle slider (24) so ​​that the middle slider (24) can be driven to slide horizontally by rotating the adjusting bolt (26), thereby adjusting the height position of the jacking mold (22) in the molding cavity (20); The demoulding mechanism (3) comprises a demoulding driving member (31), a lifting plate (32) and a push rod (33), wherein the demoulding driving member (31) is fixed to the base (11), the lifting plate (32) is fixed to the lifting end of the demoulding driving member (31), a plurality of push rods (33) are vertically fixed to the lifting plate (32), a plurality of sliding holes (251) are provided on the lower slider (25), a plurality of sliding grooves (241) corresponding to each row of the sliding holes (251) are provided on the middle slider (24), and the upper slider (23 ) is provided with an upper sliding hole (231) corresponding to each lower sliding hole (251), and each push rod (33) can be lifted and slidably penetrated in the corresponding lower sliding hole (251), the slide groove (241) and the upper sliding hole (231). Each push rod (33) corresponds to each lifting mold (22) one by one. Under the drive of the demoulding driving member (31), the upper end of the push rod (33) can be lifted to contact or lowered to separate from the lifting mold (22) so as to eject the dry ice block in the molding cavity (20).

2. The dry ice briquetting machine according to claim 1, characterized in that: One end of the adjusting bolt (26) is rotatably connected to the base (11) and axially limited to the base (11), and the other end of the adjusting bolt (26) is threadedly connected to the middle slider (24); Alternatively, one end of the adjusting bolt (26) is threadedly connected to the base (11), and the other end of the adjusting bolt (26) is rotatably connected to the middle slider (24) and axially limited to the middle slider (24).

3. The dry ice briquetting machine according to claim 1, characterized in that: The upper and lower inclined surfaces of the middle slider (24) are both provided with guide rails (27), the lower inclined surface of the upper slider (23) and the upper inclined surface of the lower slider (25) are both provided with guide grooves (28), and the guide rails (27) are slidably installed in the guide grooves (28).

4. The dry ice briquetting machine according to claim 1, characterized in that: The upper mold pressing mechanism (1) comprises a guide frame (14), the guide frame (14) comprises guide rods (141), a lifting plate (142) and a fixed plate (143), four guide rods (141) are fixedly arranged on the base (11), the lifting plate (142) is slidably mounted on the four guide rods (141), the upper mold (12) is fixed below the lifting plate (142), the fixed plate (143) is fixed to the top of the four guide rods (141) and is located above the lifting plate (142), and the pressing drive assembly (13) is arranged on the lifting plate (142).

5. The dry ice briquetting machine according to claim 4, characterized in that: The downward pressing driving assembly (13) comprises a downward pressing motor (131), a screw rod (132) and a nut (133). The downward pressing motor (131) is mounted on a fixing plate (143). Two ends of the screw rod (132) are rotatably mounted on the base (11) and the fixing plate (143). Two screw rods (132) are arranged in parallel and are respectively located between two guide rods (141). Two nuts (133) are fixed on the lifting plate (142) at intervals. The two screw rods (132) are respectively screwed and penetrate the two nuts (133). The output shaft of the downward pressing motor (131) is transmission-connected with the two screw rods (132) to drive the two screw rods (132) to rotate so that the nut (133) drives the lifting plate (142) to rise and fall and slide.

6. The dry ice briquetting machine according to claim 5, characterized in that: The downward pressing driving assembly (13) comprises a driving gear (134), a driven gear (135) and a transmission gear (136); the driving gear (134) is fixed to the output shaft of the downward pressing motor (131); a driven gear (135) is fixed to the top of each screw rod (132); the two driven gears (135) are respectively located on opposite sides of the driving gear (134); a transmission gear (136) is meshed and installed between the driving gear (134) and each driven gear (135); and the transmission gear (136) is rotatably installed on the fixing plate (143).

7. The dry ice briquetting machine according to claim 5, characterized in that: The base (11) comprises a bottom plate (111), a side plate (112) and a support frame (113); two side plates (112) are fixedly arranged in parallel on one opposite side of the bottom plate (111); two support frames (113) are fixedly arranged in parallel on the other opposite side of the bottom plate (111) to form an installation space for accommodating a lower die thickness adjustment mechanism (2); two sides of the lower die (21) are respectively fixed on the two support frames (113); the bottom ends of each screw rod (132) and guide rod (141) are fixed on the corresponding side plate (112); an adjustment bolt (26) is installed on a side plate (112); and a lifting opening (110) for lifting a lifting plate (32) and a lifting rod (33) is provided at the center of the bottom plate (111).

8. The dry ice briquetting machine according to claim 1, characterized in that: The invention comprises a frame (4) and a loading and unloading mechanism (5), wherein an upper mold lower pressing mechanism (1) is arranged on the frame (4), and the loading and unloading mechanism (5) is arranged on the frame (4) and located on the loading side of the upper mold lower pressing mechanism (1) so as to put dry ice particles into a lower mold (21) and push out the formed dry ice block.

9. The dry ice briquetting machine according to claim 8, characterized in that: The loading and unloading mechanism (5) comprises a horizontal rail (51), a feeding frame (52), a lower hopper (53), a bearing plate (54), a blocking plate (55) and a telescopic driving member (56), wherein the two horizontal rails (51) are parallelly fixed on the frame (4) and the lower mold (21), the feeding frame (52) is slidably arranged between the two horizontal rails (51), the lower hopper (53) is installed on the frame (4) and is located above the feeding frame (52), and the bearing plate (54) is provided on the lower hopper (53). The first embodiment of the present invention relates to a first embodiment of the present invention which is a first embodiment of the present invention. The first embodiment of the present invention comprises a first sliding plate (54) fixed to the two horizontal rails (51) and located at the bottom of the blocking feeding frame (52) to carry the dry ice particles falling from the lower hopper (53). The second embodiment of the present invention comprises a first sliding plate (55) fixed to the two horizontal rails (51) and located at the bottom of the blocking feeding frame (52) to carry the dry ice particles falling from the lower hopper (53). The blocking plate (55) is fixed to one end of the feeding frame (52) to block the lower hopper (53) when the feeding frame (52) leaves the lower hopper (53). The telescopic driving member (56) is fixed to the frame (4) and is in driving connection with the feeding frame (52) to drive the feeding frame (52) to slide along the horizontal rails (51).

10. The dry ice briquetting machine according to claim 9, characterized in that: A vibration motor (57) is fixed on the outer side of the lower hopper (53).

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