Raw material crushing device for EPS foam production
By combining the crushing roller and the mixing mechanism, the problem of low crushing efficiency caused by raw material accumulation is solved, achieving efficient crushing and uniform mixing, thus improving the efficiency and quality of EPS foam production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-14
- Publication Date
- 2026-04-03
AI Technical Summary
In existing crushing equipment, the accumulation of raw materials during the crushing process prevents them from making sufficient contact, affecting crushing efficiency and consequently impacting the production progress of EPS foam.
The design incorporates a combination of crushing rollers, a stirring mechanism, and an adjusting mechanism. The crushing rollers are driven by a motor to rotate, and the material space is adjusted by an adjusting block to ensure that the material is fully crushed and stirred. Combined with the discharge from the sealing plate, efficient crushing and mixing are achieved.
It improves the crushing efficiency and mixing uniformity of raw materials, ensuring the quality of subsequent foam board processing. The structure is simple and reasonable, and the operation is convenient.
Smart Images

Figure CN224074746U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of EPS foam production technology, and more specifically, it relates to a raw material crushing device for EPS foam production. Background Technology
[0002] EPS foam plastic is a lightweight material made of polystyrene resin as the base material, with the addition of foaming agents and other auxiliary materials, and is produced by heating and foaming. It has the advantages of being lightweight, having a low thermal conductivity, low water absorption, water resistance, aging resistance, low temperature resistance, easy processing, and being inexpensive and of high quality. It is an indispensable heat preservation and freshness preservation material for containers used in seafood freezing, vegetable preservation, insulated boxes, cold storage, refrigerated trucks, railway passenger cars, etc. EPS packaging products are relatively easy to recycle and reuse, making them a good green packaging material.
[0003] Based on the above, the inventors have discovered the following problems: In the current crushing device, when the raw material is transported into the crushing chamber, too much raw material accumulates, causing the raw material to move up and down during the crushing process, preventing it from fully contacting the crushing device. This results in low crushing efficiency and affects the production progress of EPS foam boxes.
[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and provided a raw material crushing device for EPS foam production, in order to achieve a more practical purpose. Utility Model Content
[0005] To address the aforementioned technical problems, this utility model provides a raw material crushing device for EPS foam production, thereby resolving the issues in the current background technology.
[0006] The purpose and effectiveness of this utility model's raw material crushing device for EPS foam production are achieved through the following specific technical means:
[0007] A raw material crushing device for EPS foam production includes a crushing box, a crushing mechanism, and a stirring mechanism. The crushing box has a crushing chamber inside, and a feed inlet is provided on one side of the crushing chamber. The crushing mechanism includes several crushing rollers, and a first rotating shaft is connected to one side of the crushing chamber. Second rotating shafts are connected to both sides of the first rotating shaft inside the crushing chamber. The several crushing rollers are respectively sleeved on the outside of the first rotating shaft and a pair of second rotating shafts. Several crushing teeth are installed on the outside of the several crushing rollers, and the crushing teeth are interlaced. A first motor is installed on one side of the crushing box, and the output end of the first motor is drivenly connected to the first rotating shaft. The stirring mechanism includes a rotating rod, and a mounting frame is connected to one side of the crushing chamber. The rotating rod is installed at the bottom of the mounting frame, and a third motor is installed at the bottom of the crushing box. The output end of the third motor is drivenly connected to the rotating rod.
[0008] Furthermore, the first rotating shaft is provided with a driving gear on its exterior, and one end of each pair of second rotating shafts passes through the crushing box and is provided with a driven gear, and the driving gear meshes with each other with a pair of driven gears respectively.
[0009] Furthermore, a threaded rod is connected to the top of the inner part of the crushing chamber, and a pair of adjusting blocks are threadedly connected to the outer part of the threaded rod. A second motor is installed on the outside of the crushing box, and the output end of the second motor is connected to the threaded rod for transmission.
[0010] Furthermore, each of the pair of adjusting blocks has an adjusting rod hinged to its bottom end, and the crushing chamber has a pressure plate at the top of the crushing roller. A pair of hinge seats are installed on the top of the pressure plate, and the bottom end of the adjusting rod is hinged to the hinge seats.
[0011] Furthermore, inside the crushing chamber, guide plates are installed on both sides of the bottom of the crushing roller, and a support plate is connected between a pair of guide plates, with a discharge port at the center of the support plate.
[0012] Furthermore, a number of connecting parts are installed at equal intervals on the outside of the rotating rod, and a number of connecting rods are connected to the outside of each of the connecting parts, with a stirring block installed at one end of each connecting rod.
[0013] Furthermore, the bottom side of the crushing box is provided with a discharge port, and the inside of the discharge port is hinged with a sealing plate. The outside of the crushing box is equipped with a feed hood on the side of the feed inlet, and the feed inlet and the crushing chamber are connected to each other.
[0014] Compared with the prior art, the present invention has the following beneficial effects:
[0015] 1. This type of raw material crushing device for EPS foam production uses a first motor, a first rotating shaft, a second rotating shaft, a drive gear, a driven gear, crushing rollers, a pressure plate, a second motor, and a threaded rod in cooperation. The raw material is conveyed to the top of several crushing rollers through the feed inlet. Then, the first motor is started, which drives the first rotating shaft and the drive gear to rotate. The drive gear and the driven gear mesh with each other. When the drive gear rotates, it drives a pair of second rotating shafts to rotate, causing several crushing rollers to rotate simultaneously to crush the raw material. During crushing, friction occurs between the raw materials, which can easily cause the raw material to arch upwards, affecting the crushing effect. At this time, the second motor is started, which drives the threaded rod to rotate. The surface of the threaded rod has a set of opposite threads, which drives a pair of adjusting blocks to move closer to each other. The outside of the pressure plate is in contact with the inner wall of the crushing chamber, so that a pair of adjusting rods push the pressure plate downwards, reducing the range of motion of the raw material and allowing the raw material to enter between several crushing rollers more quickly and be crushed quickly by the crushing rollers. The crushed particles are discharged through the discharge port.
[0016] 2. This type of raw material crushing device for EPS foam production, through the coordinated use of a mounting frame, rotating rod, third motor, connecting rod, stirring block, discharge port, and sealing plate, allows the crushed particles to fall between several connecting rods. Activating the third motor drives the rotating rod to rotate, which in turn drives the connecting rods and stirring block to stir the raw materials, thus ensuring a more thorough blending of the various materials. This facilitates subsequent processing of the foam board. After stirring, the sealing plate is opened, and the raw materials are removed through the discharge port. This invention features a simple and reasonable structure, novel design, and easy and convenient operation. It effectively increases the crushing efficiency of raw materials and better facilitates the thorough blending of various materials, thus possessing high practical value. Attached Figure Description
[0017] Figure 1 This is a three-dimensional schematic diagram of the present invention.
[0018] Figure 2 This is a three-dimensional schematic diagram of the interior of the pulverizing chamber of this utility model. Figure 1 .
[0019] Figure 3 This is a three-dimensional schematic diagram of the interior of the pulverizing chamber of this utility model. Figure 2 .
[0020] Figure 4 This is a partial planar sectional view of the present invention.
[0021] In the diagram, the correspondence between component names and drawing numbers is as follows:
[0022] 1001. Crushing box; 1002. Feed hood; 1003. Feed inlet; 1004. Crushing chamber; 2001. First motor; 2002. First rotating shaft; 2003. Second rotating shaft; 2004. Drive gear; 2005. Driven gear; 2006. Crushing roller; 2007. Pressure plate; 2008. Second motor; 2009. Threaded rod; 2010. Adjusting block; 2011. Adjusting rod; 2012. Hinge seat; 2013. Guide plate; 2014. Support plate; 2015. Discharge port; 3001. Mounting frame; 3002. Rotating rod; 3003. Third motor; 3004. Connecting piece; 3005. Connecting rod; 3006. Stirring block; 3007. Discharge port; 3008. Sealing plate. Detailed Implementation
[0023] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.
[0024] Example:
[0025] As attached Figure 1 To be continued Figure 4 As shown:
[0026] This utility model provides a raw material crushing device for EPS foam production, including a crushing box 1001, a crushing mechanism, and a stirring mechanism. The crushing box 1001 has a crushing chamber 1004 inside, and a feed inlet 1003 is provided on one side of the crushing chamber 1004. The crushing mechanism includes several crushing rollers 2006, and a first rotating shaft 2002 is connected to one side of the inside of the crushing chamber 1004. Second rotating shafts 2003 are connected to both sides of the first rotating shaft 2002 inside the crushing chamber 1004, and the several crushing rollers 2006 are respectively sleeved on the first rotating shaft 2002 and a pair of second rotating shafts 2003. Externally, several crushing teeth are installed on the exterior of several crushing rollers 2006, and the crushing teeth are interlaced with each other. A first motor 2001 is installed on one side of the exterior of the crushing box 1001, and the output end of the first motor 2001 is connected to the first rotating shaft 2002. The stirring mechanism includes a rotating rod 3002, and a mounting frame 3001 is connected to one side of the interior of the crushing chamber 1004. The rotating rod 3002 is installed at the bottom of the mounting frame 3001, and a third motor 3003 is installed at the bottom of the crushing box 1001. The output end of the third motor 3003 is connected to the rotating rod 3002.
[0027] The first rotating shaft 2002 is provided with a drive gear 2004 on its outside. One end of each pair of second rotating shafts 2003 passes through the crushing box 1001 and is provided with a driven gear 2005. The drive gear 2004 meshes with a pair of driven gears 2005. With the drive gear 2004 installed, when the drive gear 2004 rotates, the pair of driven gears 2005 rotate simultaneously, driving several crushing rollers 2006 to rotate simultaneously to crush the raw materials.
[0028] The crushing chamber 1004 has a threaded rod 2009 connected to its inner top, and the threaded rod 2009 has a pair of adjusting blocks 2010 connected to its outer thread. The crushing box 1001 has a second motor 2008 installed on its exterior, and the output end of the second motor 2008 is connected to the threaded rod 2009 for transmission.
[0029] In this configuration, the bottom ends of a pair of adjusting blocks 2010 are each hinged with an adjusting rod 2011, and the crushing chamber 1004 has a pressure plate 2007 on the top of the crushing roller 2006. A pair of hinge seats 2012 are installed on the top of the pressure plate 2007, and the bottom ends of the adjusting rods 2011 are hinged to the hinge seats 2012. By installing the pressure plate 2007, the movement space of the raw material before crushing can be adjusted, so that the raw material can enter the crushing rollers 2006 more quickly for crushing.
[0030] Inside the crushing chamber 1004, guide plates 2013 are installed on both sides of the bottom of the crushing roller 2006, and a support plate 2014 is connected between a pair of guide plates 2013. A discharge port 2015 is provided at the center of the support plate 2014.
[0031] The rotating rod 3002 is equipped with several connecting parts 3004 at equal intervals on its exterior, and several connecting rods 3005 are connected to the exterior of each of the connecting parts 3004. A stirring block 3006 is installed at one end of each connecting rod 3005. By installing the connecting rods 3005 and the stirring block 3006, various raw materials can be fully stirred, thereby improving the quality of production.
[0032] The crushing box 1001 has a discharge port 3007 on one side of its bottom, and a sealing plate 3008 is hinged inside the discharge port 3007. The crushing box 1001 has a feed cover 1002 installed on one side of the feed inlet 1003, and the feed inlet 1003 and the crushing chamber 1004 are connected to each other.
[0033] The specific usage and function of this embodiment are as follows:
[0034] When using this product, firstly, check whether the connections are secure. After ensuring they are intact, feed the raw material through the feed inlet 1003 to the top of several crushing rollers 2006. Then, start the first motor 2001, which drives the first rotating shaft 2002 and the drive gear 2004 to rotate. The drive gear 2004 meshes with the driven gear 2005. When the drive gear 2004 rotates, it drives a pair of second rotating shafts 2003 to rotate, causing the crushing rollers 2006 to rotate simultaneously to crush the raw material. Due to friction between the raw materials during crushing, the raw material may arch upwards, affecting the crushing effect. At this time, start the second motor 2008, which drives the threaded rod 2009 to rotate. The surface of the threaded rod 2009 is provided with a set of opposite... The threads cause a pair of adjusting blocks 2010 to move closer to each other, and the outer side of the pressure plate 2007 is in contact with the inner wall of the crushing chamber 1004, thereby causing a pair of adjusting rods 2011 to push the pressure plate 2007 downward, reducing the range of motion of the raw material, allowing the raw material to enter between several crushing rollers 2006 more quickly, and be crushed quickly through the crushing rollers 2006. The crushed particles are discharged through the discharge port (2015) and fall between several connecting rods 3005. The third motor 3003 is started, causing the third motor 3003 to drive the rotating rod 3002 to rotate, driving several connecting rods 3005 and stirring blocks 3006 to stir the raw material, thereby making the various raw materials more fully integrated, which is convenient for subsequent processing of foam board. After stirring is completed, the sealing plate 3008 is opened and the raw material is taken out with the discharge port 3007.
[0035] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.
Claims
1. A raw material crushing device for EPS foam production, characterized by: Including the pulverization box (1001), the pulverization mechanism and the stirring mechanism, the inside of the pulverization box (1001) is equipped with the pulverization chamber (1004), and the one side of the pulverization chamber (1004) is equipped with the feeding port (1003), the pulverization mechanism includes a plurality of pulverization rollers (2006), and the inside of the pulverization chamber (1004) is connected with the first rotating shaft (2002) on one side, the inside of the pulverization chamber (1004) is connected with the second rotating shaft (2003) on both sides of the first rotating shaft (2002), and a plurality of the pulverization rollers (2006) are respectively sleeved on the outside of the first rotating shaft (2002) and a pair of the second rotating shaft (2003), a plurality of the pulverization teeth are installed on the outside of a plurality of the pulverization rollers (2006), and a plurality of the pulverization teeth are staggered with each other, the outside of the pulverization box (1001) is installed with the first motor (2001) on one side, and the output end of the first motor (2001) is in transmission connection with the first rotating shaft (2002), the stirring mechanism includes the rotating rod (3002), and the inside of the pulverization chamber (1004) is connected with the mounting bracket (3001) on one side, the rotating rod (3002) is installed at the bottom of the mounting bracket (3001), and the bottom of the pulverization box (1001) is installed with the third motor (3003), and the output end of the third motor (3003) is in transmission connection with the rotating rod (3002).
2. The raw material crushing device for EPS foam production according to claim 1, characterized in that: The outside of the first rotating shaft (2002) is equipped with the driving gear (2004), and one end of a pair of the second rotating shaft (2003) penetrates the pulverization box (1001) and is equipped with the driven gear (2005), and the driving gear (2004) is respectively engaged with a pair of the driven gear (2005).
3. The raw material crushing device for EPS foam production according to claim 1, characterized in that: The inside of the pulverization chamber (1004) is connected with the threaded rod (2009) on the top end, and a pair of the adjusting blocks (2010) are connected with the threaded rod (2009) on the outside, the outside of the pulverization box (1001) is installed with the second motor (2008), and the output end of the second motor (2008) is in transmission connection with the threaded rod (2009).
4. The raw material crushing device for EPS foam production according to claim 3, characterized in that: The bottom end of a pair of the adjusting blocks (2010) is hinged with the adjusting rod (2011), and the inside of the pulverization chamber (1004) is equipped with the pressing plate (2007) on the top of the pulverization roller (2006), the top of the pressing plate (2007) is installed with a pair of the hinged seats (2012), and the bottom end of the adjusting rod (2011) is hinged with the hinged seat (2012).
5. The raw material crushing device for EPS foam production according to claim 1, characterized in that: The inside of the pulverization chamber (1004) is installed with the guide plate (2013) on both sides of the bottom of the pulverization roller (2006), and a pair of the guide plates (2013) are connected with the supporting plate (2014), and the inside of the supporting plate (2014) is equipped with the discharge port (2015) at the center.
6. The raw material crushing device for EPS foam production according to claim 1, characterized in that: The outer part of the rotating rod (3002) is equidistantly provided with a plurality of connecting pieces (3004), and the outer part of each of the connecting pieces (3004) is connected with a plurality of connecting rods (3005), one end of each of the connecting rods (3005) is provided with a stirring block (3006).
7. The raw material crushing device for EPS foam production according to claim 1, characterized in that: The bottom side of the pulverizing box (1001) is provided with a discharge port (3007), the inner part of the discharge port (3007) is hingedly connected with a sealing plate (3008), the outer part of the pulverizing box (1001) is provided with a feeding cover (1002) on one side of the feeding port (1003), and the feeding port (1003) and the pulverizing chamber (1004) are connected with each other.