Butyl rubber extrusion cutting device
By designing a butyl rubber extrusion and cutting device that combines a V-shaped edge cutter with a telescopic cylinder, the problem of time-consuming and labor-intensive manual cutting of butyl rubber has been solved, improving cutting efficiency and safety, maintaining the airtightness of the rubber, and extending the service life of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BAOJI JINHONGXING SEALING MATERIALS CO LTD
- Filing Date
- 2025-07-21
- Publication Date
- 2026-06-30
AI Technical Summary
Manually cutting butyl rubber is difficult, time-consuming, labor-intensive, poses safety hazards, and has low cutting efficiency.
Design a butyl rubber extrusion and cutting device, which uses a V-shaped edge cutter installed on a support frame and connected to a telescopic cylinder. The telescopic cylinder drives the cutter to move downward along the height direction of the support frame, and the extrusion and cutting operation is achieved in conjunction with the cutter groove on the platform plate.
It reduces the difficulty of cutting butyl rubber, improves cutting efficiency and safety, reduces labor costs, maintains the airtightness of the rubber, and extends the service life of the telescopic cylinder.
Smart Images

Figure CN224425680U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of rubber cutting technology, specifically relating to a butyl rubber extrusion cutting device. Background Technology
[0002] Butyl rubber is a synthetic rubber composed of isobutylene and a small amount of isoprene. It possesses excellent weather resistance, chemical corrosion resistance, and insulation properties, exhibiting good toughness and elasticity, allowing it to recover its original shape well after deformation under stress. Therefore, it is widely used in various technical fields such as automotive, chemical, construction, agriculture, and medical industries. As a raw material for other rubber blends, butyl rubber needs to be cut into blocks before being added to a mixer. However, due to its high elasticity, butyl rubber is prone to deformation during manual cutting. Manual cutting of butyl rubber requires continuous force from the operator, especially for thicker or larger pieces. Prolonged cutting can lead to operator fatigue, increased labor intensity, reduced work efficiency, and safety hazards. Therefore, to address these issues, it is necessary to design a butyl rubber extrusion cutting device. Utility Model Content
[0003] The technical problem solved by this utility model is to provide a butyl rubber extrusion cutting device. This device involves guiding and installing a cutter with a V-shaped lower end on a support frame, and a telescopic cylinder fixedly connected to the middle of the upper end of the cutter. A platform plate with a cutter groove is provided on the support frame. When the telescopic cylinder drives the cutter to move downwards along the height direction of the support frame until it matches the cutter groove, the butyl rubber below the cutter on the platform plate is extruded and cut. This solves the problems of high difficulty and time-consuming labor in manual cutting, reduces the difficulty of cutting butyl rubber, improves cutting efficiency and safety, greatly reduces the cost of manual cutting, and has high practical value.
[0004] The technical solution adopted in this utility model is a butyl rubber extrusion cutting device, including a support frame. A telescopic cylinder is fixed at the middle position of the top of the support frame, and the lower end of the piston rod of the telescopic cylinder extends into the support frame. A platform plate is fixed at the lower middle position inside the support frame, and a cutter guide located above the platform plate is installed inside the support frame. The cutter is a rectangular plate structure with the lower long side processed into a V-shape, and the corner of the V-shape is rounded. The lower end of the piston rod of the telescopic cylinder is fixedly connected to the middle of the upper end of the cutter. A groove corresponding to the upper and lower positions of the cutter is formed on the surface of the platform plate. When the telescopic cylinder drives the cutter to move down along the height direction of the support frame to a state that matches the groove, the butyl rubber below the cutter on the platform plate is extruded and cut.
[0005] The support frame has guide grooves on both the left and right sides, and the left and right sides of the cutter are adapted to the guide grooves on the same side.
[0006] Furthermore, the front side of the platform plate is the feeding side and the rear side is the discharge side of the extruded butyl rubber blocks. The rear side of the platform plate is provided with a storage box for storing the extruded butyl rubber blocks, and the height of the opening of the storage box is not higher than the height of the upper surface of the platform plate.
[0007] Furthermore, the storage box is equipped with casters at all four corners of its bottom surface to facilitate its movement.
[0008] Furthermore, the lower end of the piston rod of the telescopic cylinder is fixed with a connector, and the upper middle part of the cutter is inserted into the connecting groove on the lower end face of the connector. The cutter and the connector are fixedly connected as one unit by bolts passing through the connector and the cutter and nuts that are compatible with the bolts.
[0009] Furthermore, the support frame is a slotted frame structure with the front and rear sides open and facing downwards. The telescopic cylinder is fixed to two parallel top beams at the upper end of the support frame, and the lower end of the piston rod of the telescopic cylinder passes through the two top beams and extends into the support frame.
[0010] Advantages of this utility model compared to the prior art:
[0011] 1. This technical solution involves guiding and installing a cutter on a support frame and a telescopic cylinder fixedly connected to the upper middle part of the cutter. A platform plate with a cutter groove is set on the support frame. When the telescopic cylinder drives the cutter to move down along the height direction of the support frame to match the cutter groove, the butyl rubber below the cutter on the platform plate is extruded and cut. This solves the problems of high cutting difficulty and time and labor cost when cutting manually, reduces the cutting difficulty of butyl rubber, improves cutting efficiency and cutting safety, and greatly reduces the cost of manual cutting.
[0012] 2. This technical solution uses a rectangular plate-shaped cutter with the long side of the lower end machined into a V-shape. Driven by a telescopic cylinder, its V-shaped cutting edge can first concentrate force to cut into the butyl rubber. As the cutting depth increases, the cutting range on both sides of the V-shaped cutting edge gradually expands, better adapting to the toughness of the butyl rubber, reducing the deformation and rebound of the butyl rubber, and making the cutting process smoother.
[0013] 3. This technical solution uses a rectangular plate cutter with the long side of the lower end processed into a V-shape. During cutting, it can first break the tight structure between butyl rubber molecules with a smaller contact area. Compared with ordinary cutters, it can cut into the rubber interior more effectively, reducing excessive compression and disturbance to the surrounding rubber molecular structure. Thus, the airtightness of butyl rubber can still be well maintained after cutting.
[0014] 4. This technical solution uses a storage box with casters at the bottom to facilitate the centralized storage of cut butyl rubber blocks, and at the same time, it can quickly transport the cut butyl rubber blocks to the feeding position of the internal mixer.
[0015] 5. This technical solution has a simple structure and novel design, reduces cutting time, and has a good cutting effect. The V-shaped cutter and the telescopic cylinder work together to reduce the instantaneous pressure impact on the telescopic cylinder compared with the traditional structure, which helps to protect the telescopic cylinder and extend its service life. Attached Figure Description
[0016] Figure 1 This is a front view of the structure of this utility model;
[0017] Figure 2 This is a top view of the structure of this utility model;
[0018] Figure 3 for Figure 1 Sectional view of AA. Detailed Implementation
[0019] The following will refer to the embodiments of this utility model. Figure 1-3 The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0020] It should be noted that, unless otherwise stated herein, the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are used only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," and "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0021] In this document, the terms "comprising," "including," or any other variations thereof are intended to cover a 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 limitation, 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.
[0022] Butyl rubber extrusion cutting equipment, such as Figure 1-3As shown, the system includes a support frame 1. A telescopic cylinder 2 is fixed at the top center of the support frame 1. The telescopic cylinder 2 is a pneumatic cylinder, hydraulic cylinder, or electric cylinder, and the lower end of the piston rod of the telescopic cylinder 2 extends into the support frame 1. A platform plate 3 is fixed at the lower center of the support frame 1, and a cutter 4 located above the platform plate 3 is guided and installed inside the support frame 1. The cutter 4 is a rectangular plate structure with its lower long side machined into a V-shape, and the corner of the V-shape is rounded. The lower end of the piston rod of the telescopic cylinder 2 is fixedly connected to the upper center of the cutter 4. The platform plate 3 has grooves 5 on its surface corresponding to the upper and lower positions of the cutter 4. The telescopic cylinder 2 drives the cutter 4 along the support frame... When the height direction moves downward to match the groove 5, the butyl rubber below the cutter 4 on the platform plate 3 is extruded and cut. In the above structure, the cutter 4 and the telescopic cylinder 2 fixedly connected to the upper middle part of the cutter 4 are installed on the support frame, and the platform plate 3 with the groove 5 on the plate surface is set on the support frame 1. When the telescopic cylinder 2 drives the cutter 4 to move downward along the height direction of the support frame 1 to match the groove 5, the butyl rubber below the cutter 4 on the platform plate 3 is extruded and cut. This solves the problem of high cutting difficulty and time and labor cost when cutting manually, reduces the cutting difficulty of butyl rubber, improves cutting efficiency, improves cutting safety, and greatly reduces the cost of manual cutting.
[0023] In the above structure, a rectangular plate-shaped cutter 4 with its long lower side machined into a V-shape is used. On the one hand, driven by the telescopic cylinder 2, its V-shaped cutting edge can first concentrate force to cut into the butyl rubber. As the cutting depth increases, the cutting range on both sides of the V-shaped cutting edge gradually expands, better adapting to the toughness of the butyl rubber, reducing the deformation and rebound of the butyl rubber, and making the cutting process smoother. On the other hand, during cutting, it can first break the tight structure between butyl rubber molecules with a smaller contact area. Compared with ordinary cutters, it can cut into the rubber interior more effectively, reducing excessive compression and disturbance to the surrounding rubber molecular structure, so that the airtightness of the butyl rubber can still be well maintained after cutting.
[0024] The guide installation structure of the cutter 4 and the support frame 1 is as follows: the support frame 1 is provided with guide grooves 6 on both the left and right sides, and the left and right sides of the cutter 4 are adapted to the guide grooves 6 on the same side.
[0025] The front side of the platform plate 3 is the feeding side, and the rear side is the discharge side of the extruded butyl rubber blocks. The rear side of the platform plate 3 is provided with a storage box 8 for storing the extruded butyl rubber blocks. The height of the opening of the storage box 8 is not higher than the height of the upper plane of the platform plate 3. Specifically, the four corners of the bottom surface of the storage box 8 are provided with casters for easy movement. These casters are self-locking casters. The storage box 8 facilitates the storage of the cut butyl rubber blocks and can also quickly transport the cut butyl rubber blocks to the feeding position of the internal mixer.
[0026] The fixed connection structure between the telescopic cylinder 2 and the cutter 4 is as follows: The lower end of the piston rod of the telescopic cylinder 2 is fixed with a connector 7, and the upper middle part of the cutter 4 is inserted into the connecting groove on the lower end face of the connector 7. The cutter 4 and the connector 7 are fixedly connected as one unit by bolts passing through the connector 7 and the cutter 4 and nuts that are compatible with the bolts. The top surface of the connecting groove on the lower end face of the connector 7 is a plane parallel to the upper edge of the cutter 4. Under the mutual constraint of the cutter 4 and the top surface of the connecting groove, even if the butyl rubber has high toughness, it can be ensured that the cutter 4 can cut it smoothly when it moves down.
[0027] The support frame 1 is a slotted frame structure with the front and rear sides open and facing downwards. The telescopic cylinder 2 is fixed to two parallel top beams 1-1 at the upper end of the support frame 1, and the lower end of the piston rod of the telescopic cylinder 2 passes through the two top beams 1-1 and extends into the support frame 1.
[0028] This technical solution has a simple structure and novel design, reduces cutting time, and has a good cutting effect. The V-shaped cutter 4 and the telescopic cylinder 2 work together to reduce the instantaneous pressure impact on the telescopic cylinder 2 compared with the traditional structure, which helps to protect the telescopic cylinder 2 and extend its service life.
[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0030] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A butyl rubber extrusion and cutting device, characterized in that: The system includes a support frame (1), a telescopic cylinder (2) is fixed at the top middle position of the support frame (1), and the lower end of the piston rod of the telescopic cylinder (2) extends into the support frame (1). A platform plate (3) is fixed at the middle and lower position inside the support frame (1), and a cutter (4) located above the platform plate (3) is guided and installed inside the support frame (1). The cutter (4) is a rectangular plate structure with the lower long side processed into a V-shaped edge, and the corner of the V-shaped edge is rounded. The lower end of the piston rod of the telescopic cylinder (2) is fixedly connected to the upper middle part of the cutter (4), and a groove (5) corresponding to the upper and lower positions of the cutter (4) is made on the surface of the platform plate (3). When the telescopic cylinder (2) drives the cutter (4) to move down along the height direction of the support frame (1) to a state that matches the groove (5), the butyl rubber below the cutter (4) on the platform plate (3) is extruded and cut.
2. The butyl rubber extrusion and cutting device according to claim 1, characterized in that: The support frame (1) has guide grooves (6) on both the left and right sides, and the left and right sides of the cutter (4) are adapted to the guide grooves (6) on the same side.
3. The butyl rubber extrusion and cutting device according to claim 1, characterized in that: The front side of the platform plate (3) is the feeding side and the rear side is the discharge side of the extruded butyl rubber blocks. The rear side of the platform plate (3) is provided with a storage box (8) for storing the extruded butyl rubber blocks. The height of the opening of the storage box (8) is not higher than the height of the upper plane of the platform plate (3).
4. The butyl rubber extrusion and cutting device according to claim 3, characterized in that: The storage box (8) is equipped with casters at all four corners of its bottom surface to facilitate its movement.
5. The butyl rubber extrusion and cutting device according to claim 1, characterized in that: The lower end of the piston rod of the telescopic cylinder (2) is fixed with a connector (7), and the upper middle part of the cutter (4) is inserted into the connecting groove on the lower end face of the connector (7). The cutter (4) and the connector (7) are fixedly connected as one unit by bolts passing through the connector (7) and the cutter (4) and nuts that are compatible with the bolts.
6. The butyl rubber extrusion and cutting device according to claim 1, 2, 3, 4, or 5, characterized in that: The support frame (1) is a slotted frame structure with the front and rear sides open and facing downwards. The telescopic cylinder (2) is fixed on two parallel top beams (1-1) at the upper end of the support frame (1), and the lower end of the piston rod of the telescopic cylinder (2) passes through the two top beams (1-1) and extends into the support frame (1).