Adjustable rubber sealing strip machining support

Abstract

The utility model discloses an adjustable rubber sealing strip processing support, and belongs to the technical field of sealing rubber strip production equipment. Comprising a traction structure, a base and a supporting mold, the base comprises a fixing plate, an adjusting plate, a hand wheel adjusting mechanism, an angle adjusting mechanism, a locking mechanism, a pressing wheel, an overturning frame and two vertical plates, the adjusting plate can be arranged on the fixing plate in a left-right adjusting mode, and the two vertical plates are fixed to the front end and the rear end of the upper side of the adjusting plate respectively; the front end and the rear end of the overturning frame are rotationally arranged on the two vertical plates respectively, an angle adjusting mechanism used for driving the overturning frame to rotate is arranged between one end of the overturning frame and the adjusting plate or the corresponding vertical plate, and a locking mechanism is arranged between the other end of the overturning frame and the adjusting plate or the corresponding vertical plate. The supporting mold is arranged on the overturning frame; the hand wheel adjusting mechanism is arranged between the fixing plate and the adjusting plate and used for driving the adjusting plate to move left and right. The pressing wheel is located between the supporting die and the vertical plate on the front portion, located on the upper side of the rubber sealing strip, arranged on the vertical plate on the front portion and capable of being adjusted in the left-right direction.

Description

Technical Field

[0001] This utility model belongs to the technical field of sealing strip production equipment, and specifically relates to an adjustable rubber sealing strip processing support, which is particularly suitable for drilling processing. Background Technology

[0002] Rubber sealing strips are important automotive components. They fill gaps between body parts and provide functions such as shock absorption, waterproofing, dustproofing, sound insulation, and decoration. High-quality automotive sealing strips can improve driving comfort and protect the vehicle body. During the production process, rubber sealing strips require perforation to facilitate fixing them to the vehicle or for venting. Current technology uses a perforation device to perform this perforation.

[0003] For example, patent application number CN201921471070.X discloses a rotary drilling machine, including a support frame, a traction mechanism, a safety door, a lighting lamp, a drilling tooling mold, an alarm light, a touch screen, a control panel, an automatic speed-regulating lever, adjustable casters, and a support block. The inner end face of the support frame is fixedly connected to a traction mechanism for traction, and a drilling tooling mold for drilling is fixedly connected to the side of the inner end face of the support frame near the traction mechanism. An automatic speed-regulating lever for material feeding is fixedly connected to the center of the side end face of the support frame. A safety door for protection is rotatably connected to the top of the front end face of the support frame, and a touch screen is fixedly connected to the front end face of the support frame near the safety door. A control panel for operation is fixedly connected to the lower side of the touch screen, and an alarm light for warning is fixedly connected to the top of the support frame near the control panel.

[0004] Existing drilling devices include a traction device and a drilling mechanism. The drilling mechanism comprises a housing, a base, and a drilling structure. The base has a support mold with grooves along its front-to-back direction that mate with a rubber sealing strip. The drilling structure includes a lifting drive mechanism, a fine-tuning mechanism on the lifting drive mechanism, and a pneumatic drill on the fine-tuning mechanism, with the pneumatic drill positioned directly above the rubber sealing strip. Existing technology primarily adjusts the pneumatic drill, but in actual processing, it usually requires adjustment of the support mold, either in conjunction with the drilling or separately, which is not feasible in existing technology. Utility Model Content

[0005] To address the aforementioned problems, this utility model provides an adjustable rubber sealing strip processing support with an adjustable support mold. The technical solution is as follows:

[0006] This utility model provides an adjustable rubber sealing strip processing support, including a traction structure 1, a base, and a support mold 2 on the base. The traction structure 1 is located directly in front of the support mold 2 and includes a transverse roller and two limiting rollers. The support mold 2 is provided with grooves, mold holes, or support rollers. The grooves and mold holes are arranged in the front-back direction, and the support rollers are arranged in the left-right direction. The base includes a fixed plate 4, an adjusting plate 5, a handwheel adjusting mechanism 6, an angle adjusting mechanism 7, a locking mechanism 8, a pressure roller 9, a flipping frame, and two upright plates 10. The fixed plate 4 and the adjusting plate 5 are both arranged horizontally in the front-back direction. The adjusting plate 5 is located directly above the fixed plate 4 and is adjustable left-right on the fixed plate 4. The upright plates 10 are fixed to the front and rear ends of the upper side of the adjusting plate 5, and are both arranged in the left and right direction; the front and rear ends of the flipping frame are respectively rotatably mounted on the two upright plates 10, and one end of the frame is provided with an angle adjustment mechanism 7 for driving its rotation between the adjusting plate 5 or the corresponding upright plate 10, and the other end of the frame is provided with a locking mechanism 8 between the adjusting plate 5 or the corresponding upright plate 10; the support mold 2 is mounted on the flipping frame; the handwheel adjustment mechanism 6 is located between the fixed plate 4 and the adjusting plate 5, and is used to drive the adjusting plate 5 to move left and right; the pressure roller 9 is arranged in the left and right direction, located between the support mold 2 and the front upright plate 10, located on the upper side of the rubber sealing strip 3, and mounted on the front upright plate 10, and can be adjusted left and right.

[0007] In this embodiment of the present invention, the two limiting rollers are located on the left and right sides of the rubber sealing strip 3 and are both vertically arranged, while the transverse roller is located on the lower side of the rubber sealing strip 3 and is arranged in the left-right direction.

[0008] Furthermore, in this embodiment of the present invention, the fixed plate 4 is provided with two transverse slide rails arranged side by side, the transverse slide rails are arranged in the left and right direction, and the adjusting plate 5 is slidably disposed on the two transverse slide rails; the handwheel adjusting mechanism 6 is located between the two transverse slide rails, it is arranged in the left and right direction, and it is located on the left or right side of the fixed plate 4.

[0009] In this embodiment of the present invention, the flipping frame includes two rings 11 and a support plate 12 between their bottoms, and the rubber sealing strip 3 passes through the rings 11; the two rings 11 are respectively rotatably mounted on two upright plates 10 and are both arranged in the front-back direction; the support plate 12 is arranged in the front-back direction and is located directly above the adjustment plate 5; the support mold 2 is located on the upper side of the support plate 12; the angle adjustment mechanism 7 is located between one ring 11 and the corresponding upright plate 10; and the locking mechanism 8 is located between the other ring 11 and the corresponding upright plate 10.

[0010] Specifically, in this embodiment of the present invention, the two upright plates 10 are a front upright plate and a rear upright plate, and the two rings 11 are a front ring and a rear ring. The front ring is rotatably mounted on the front upright plate, and the rear ring is rotatably mounted on the rear upright plate and is coaxially arranged with the front ring. The locking mechanism 8 is located between the rear ring and the rear upright plate, on the left or right side of the rear ring, and is arranged in the left-right direction. The front and rear ends of the front ring extend forward and backward relative to the front upright plate, respectively, and a toothed ring is coaxially provided at its front end. The toothed ring is located adjacent to the front of the front upright plate. The angle adjustment mechanism 7 is located between the front ring and the front upright plate, on the left or right side of the front upright plate, and is arranged in the left-right direction. It is located below the front ring, and the bevel gear on it meshes with the bottom of the toothed ring.

[0011] Preferably, in this embodiment of the present invention, a scale is provided on the rear end of the front ring and behind the front upright plate, the scale is arranged around the front ring, and a pointer 13 is provided on the rear side of the front upright plate and above the front ring, the pointer 13 is arranged vertically and its lower end cooperates with the scale.

[0012] Specifically, in this embodiment of the present invention, the front end of the rear ring extends forward relative to the rear upright plate. The locking mechanism 8 includes a fixed plate, a handwheel rotatably disposed on the fixed plate, and a soft body at the end of the handwheel. The fixed plate is disposed on the front side of the rear upright plate, is vertically arranged, and is disposed on the left or right side of the rear upright plate. The handwheel is arranged in the left-right direction, and the soft body is disposed at the end of the rotating shaft of the handwheel and rests against the left or right side of the front part of the rear ring.

[0013] Furthermore, in this embodiment of the present invention, a fixing sleeve 14 is provided on the rear side of the front upright plate; the fixing sleeve 14 is located on the left or right side of the front upright plate, is arranged in the front-back direction, has a through hole in the left-right direction on its upper side, and has a locking bolt 15 in the front-back direction at its rear end; the pressure roller 9 is coaxially arranged at the end of the fixing rod 16, the fixing rod 16 is arranged in the left-right direction and is inserted into the through hole and locked by the locking bolt 15.

[0014] Specifically, in this embodiment of the present invention, the fixing sleeve 14, the locking mechanism 8, the handwheel adjustment mechanism 6, and the angle adjustment mechanism 7 are all located on the same side.

[0015] Preferably, the support mold 2 in this embodiment of the present invention is composed of N sub-support molds arranged side by side; the sub-support molds are adjustable front and back, are detachably mounted on the support plate 12, and have grooves along the front and back direction on their tops that cooperate with the rubber sealing strip 3; the upper side of the support plate 12 has two fixing strips 17 arranged side by side, the fixing strips 17 are arranged along the front and back direction and have multiple fixing holes arranged side by side on them, the fixing holes are arranged along the left and right direction; the sub-support mold is a rectangular block arranged along the front and back direction, which is located between the two fixing strips 17, is adjustable front and back, is detachably mounted, and is fixed by locking members passing through the fixing holes.

[0016] The beneficial effects of the technical solution provided by this utility model embodiment are as follows: This utility model embodiment provides an adjustable rubber sealing strip processing support, which can adjust the support mold, making it more applicable. The adjustment process includes left-right adjustment, front-back adjustment, and angle adjustment, and the adjustment is convenient. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the adjustable rubber sealing strip processing support in an embodiment of this utility model;

[0018] Figure 2 yes Figure 1 A close-up view of the front panel;

[0019] Figure 3 yes Figure 1 A close-up view of the rear upright panel;

[0020] Figure 4 This is the rear side view of the front upright panel;

[0021] Figure 5 This is the front side view of the rear upright panel;

[0022] Figure 6 This is a top view of the support plate.

[0023] In the diagram: 1. Traction structure, 2. Support mold, 3. Rubber sealing strip, 4. Fixing plate, 5. Adjusting plate, 6. Handwheel adjustment mechanism, 7. Angle adjustment mechanism, 8. Locking mechanism, 9. Pressure roller, 10. Vertical plate, 11. Ring, 12. Support plate, 13. Pointer, 14. Fixing sleeve, 15. Locking bolt, 16. Fixing rod, 17. Fixing strip. Detailed Implementation

[0024] To make the objectives, technical solutions and advantages of this utility model clearer, the utility model will be described in further detail below with reference to the accompanying drawings.

[0025] Example 1

[0026] See Figure 1-6 Example 1 provides an adjustable rubber sealing strip processing support, including a traction structure 1, a base, and a support mold 2. The traction structure 1 is located directly in front of the support mold 2 and is mounted on a corresponding bracket. It includes a transverse roller and two limiting rollers. The two limiting rollers are located on the left and right sides of the rubber sealing strip 3 and are both vertically arranged. The transverse roller is located on the lower side of the rubber sealing strip 3 and is arranged in the left-right direction.

[0027] The base includes a fixed plate 4, an adjusting plate 5, a handwheel adjusting mechanism 6, an angle adjusting mechanism 7, a locking mechanism 8, a pressure roller 9, a tilting frame, and two upright plates 10. The fixed plate 4 and adjusting plate 5 are both horizontally arranged in the front-to-back direction and are specifically rectangular plates. The adjusting plate 5 is located directly above the fixed plate 4 and is adjustable left-to-right on the fixed plate 4. The two upright plates 10 are fixed to the front and rear ends of the upper side of the adjusting plate 5, respectively, and are both rectangular plates arranged in the left-to-right direction; they are the front upright plate and the rear upright plate, respectively. The front and rear ends of the tilting frame are rotatably mounted on the two upright plates 10. One end (front or rear end) of the tilting frame is equipped with an angle adjusting mechanism 7 between it and the adjusting plate 5 or the corresponding upright plate 10 for driving its rotation, and the other end (rear or front end) of the tilting frame is equipped with a locking mechanism 8 (for locking the tilting frame) between it and the adjusting plate 5 or the corresponding upright plate 10. The support mold 2 is mounted on the tilting frame and has grooves, mold holes, or support rollers. The grooves and mold holes are arranged in the front-to-back direction, and the support rollers are arranged in the left-to-right direction. The handwheel adjustment mechanism 6 is located between the fixed plate 4 and the adjustment plate 5, and is used to drive the adjustment plate 5 to move left and right. The pressure roller 9 is arranged in the left-to-right direction, located between the support mold 2 and the front upright plate 10, located above the rubber sealing strip 3, and is located on the front upright plate 10 (front upright plate). It can be adjusted left and right. Adjusting the handwheel adjustment mechanism 6 can adjust the support mold 2 left and right; adjusting the angle adjustment mechanism 7 (requiring the locking mechanism 8 to be released) can adjust the angle of the support mold 2. The pressure roller 9 may need to be adjusted left and right accordingly.

[0028] In this embodiment of the invention, the tilting frame is located between the front and rear uprights, and includes two rings 11 and a support plate 12 between their bottoms. A rubber sealing strip 3 passes through the rings 11. The two rings 11 are rotatably mounted on the two uprights 10, and are both arranged in the front-rear direction. Specifically, the two rings 11 are a front ring and a rear ring, with the front ring rotatably mounted on the front upright and the rear ring rotatably mounted on the rear upright, and coaxially arranged with the front ring. More specifically, the inner diameter of the rings 11 is greater than 3 cm, and they are mounted on the corresponding uprights 10 via bearings. The support plate 12 is arranged in the front-rear direction and is located directly above the adjusting plate 5; it is specifically a rectangular plate. The support mold 2 is located on the upper side of the support plate 12, the angle adjustment mechanism 7 is located between one ring 11 and the corresponding upright 10, and the locking mechanism 8 is located between the other ring 11 and the corresponding upright 10.

[0029] Example 2

[0030] See Figure 1Example 2 provides an adjustable rubber sealing strip processing support, whose structure is basically the same as that of Example 1, except that: in this embodiment, the fixed plate 4 is provided with two transverse slide rails arranged side by side, and the transverse slide rails are arranged in the left-right direction. The adjusting plate 5 is slidably disposed on the two transverse slide rails. The handwheel adjustment mechanism 6 is located between the two transverse slide rails, and is arranged in the left-right direction. It is located on the left or right side of the fixed plate 4, and is located in the middle of the fixed plate 4.

[0031] Example 3

[0032] See Figure 1-4 Example 3 provides an adjustable rubber sealing strip processing support, whose structure is basically the same as that of Example 1, except that: the locking mechanism 8 in this embodiment is located between the rear ring and the rear upright plate, on the left or right side of the rear ring, and is arranged in the left-right direction. The front and rear ends of the front ring extend forward and backward relative to the front upright plate, respectively, and a toothed ring is coaxially provided at its front end. The toothed ring is located adjacent to the front of the front upright plate. The angle adjustment mechanism 7 is located between the front ring and the front upright plate, on the left or right side of the front upright plate, and is arranged in the left-right direction. It is located on the lower side of the front ring, and the bevel gear on it (arranged in the left-right direction and located on the corresponding handwheel) meshes with the bottom of the toothed ring. The front end of the rear ring extends forward relative to the rear upright plate. The locking mechanism 8 includes a fixing plate, a handwheel, and a soft body. The fixing plate is located on the front side of the rear upright plate, vertically arranged, and is located on the left or right side of the rear upright plate. The handwheel is positioned in a left-right direction, and its rotation (threaded connection) is located on a fixed plate, with its wheel end located at the end of the fixed plate away from the rear ring. A soft body is located at the end (specifically, the inner end) of the handwheel's shaft (specifically, the threaded rod), and its top rests against the left or right side of the front part of the rear ring; specifically, it is a rubber column coaxially mounted with the shaft.

[0033] Example 4

[0034] See Figure 1-2 Example 4 provides an adjustable rubber sealing strip processing support, whose structure is basically the same as that of Example 3, except that: in this example, a scale is provided on the rear end of the front ring and behind the front upright plate, the scale is arranged around the front ring and is distributed in a ring, and a pointer 13 is provided on the rear side of the front upright plate and above the front ring. The pointer 13 is vertically arranged, and its lower end (the tip) cooperates with the scale, which is used to indicate the rotation angle of the flipping frame.

[0035] Example 5

[0036] See Figure 1-2Example 5 provides an adjustable rubber sealing strip processing support, whose structure is basically the same as that of Example 3, except that: in this example, a fixing sleeve 14 is provided on the rear side of the front upright plate. The fixing sleeve 14 is located on the left or right side of the front upright plate, and is arranged in the front-rear direction. It has a through hole (specifically a round hole) along the left-right direction on its upper edge, and a locking bolt 15 along the front-rear direction at its rear end, which is specifically a cylindrical structure. The pressure roller 9 is coaxially arranged at the end (inner end) of the fixing rod 16. The fixing rod 16 is arranged in the left-right direction, and is a round rod that fits with the through hole with clearance. It is inserted into the through hole and locked by the locking bolt 15. The pressure roller 9 can be adjusted left and right by loosening the locking bolt 15.

[0037] Example 6

[0038] See Figure 1-3 Example 6 provides an adjustable rubber sealing strip processing support, whose structure is basically the same as that of Example 5, except that the fixing sleeve 14, locking mechanism 8, handwheel adjustment mechanism 6, and angle adjustment mechanism 7 are all located on the same side. Specifically, if the fixing sleeve 14, locking mechanism 8, handwheel adjustment mechanism 6, and angle adjustment mechanism 7 are all located on the left side, then the pressure roller 9 is located at the right end of the fixing rod 16, and the soft body is located at the right end of the handwheel's rotating shaft.

[0039] Example 7

[0040] See Figure 1 and 6 Example 7 provides an adjustable rubber sealing strip processing support, whose structure is basically the same as that of Example 1, except that the processing support in this example is used for drilling rubber sealing strips and is mounted on a drilling device. The support mold 2 consists of N sub-support molds arranged side-by-side, where N is an integer greater than or equal to 1. The sub-support molds are adjustable front-to-back and are detachably mounted on the support plate 12. Their tops have grooves along the front-to-back direction to mate with the rubber sealing strip 3. Two fixing strips 17 are arranged side-by-side on the upper side of the support plate 12. The fixing strips 17 are arranged along the front-to-back direction and have multiple fixing holes arranged side-by-side, specifically rectangular strips. The fixing holes are arranged along the left-to-right direction. The sub-support mold is a rectangular block arranged along the front-to-back direction, positioned between the two fixing strips 17. It is adjustable front-to-back, detachably mounted, and fixed by locking members passing through the fixing holes. Loosening the locking members allows for front-to-back adjustment of the sub-support mold.

[0041] Example 8

[0042] See Figure 1 and 6 Example 8 provides an adjustable rubber sealing strip processing support, whose structure is basically the same as that of Example 7, except that the number of sub-support molds in this example is two.

[0043] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An adjustable rubber sealing strip processing support, comprising a traction structure (1), a base and a support die (2) on the base, the traction structure (1) is located in front of the support die (2) and comprises a transverse roller and two limiting rollers, the support die (2) is provided with grooves, die holes or support rollers, the grooves and die holes are arranged in the front-rear direction, and the support rollers are arranged in the left-right direction; characterized in that, the base comprises a fixed plate (4), an adjusting plate (5), a hand wheel adjusting mechanism (6), an angle adjusting mechanism (7), a locking mechanism (8), a pressure roller (9), a turnover frame and two vertical plates (10), the fixed plate (4) and the adjusting plate (5) are both arranged horizontally in the front-rear direction, the adjusting plate (5) is located directly above the fixed plate (4) and can be adjusted left and right on the fixed plate (4), and the two vertical plates (10) are respectively fixed to the front and rear ends of the upper side of the adjusting plate (5) and are both arranged in the left-right direction; the turnover frame is rotatably arranged at the front and rear ends of the two vertical plates (10), an angle adjusting mechanism (7) for driving the rotation is arranged between one end of the turnover frame and the adjusting plate (5) or the corresponding vertical plate (10), and a locking mechanism (8) is arranged between the other end of the turnover frame and the adjusting plate (5) or the corresponding vertical plate (10); the support die (2) is arranged on the turnover frame; the hand wheel adjusting mechanism (6) is arranged between the fixed plate (4) and the adjusting plate (5) and is used to drive the adjusting plate (5) to move in the left-right direction; the pressure roller (9) is arranged in the left-right direction, is located between the support die (2) and the front vertical plate (10), is located on the upper side of the rubber sealing strip (3), is arranged on the front vertical plate (10) and can be adjusted in the left-right direction.

2. The adjustable rubber seal bar processing support of claim 1, wherein, The two limiting rollers are respectively located on the left and right sides of the rubber sealing strip (3) and are both arranged vertically, and the transverse roller is located on the lower side of the rubber sealing strip (3) and is arranged in the left-right direction.

3. The adjustable rubber seal bar processing support of claim 1, wherein, Two transverse sliding rails are arranged side by side on the fixed plate (4) in the front-rear direction, the transverse sliding rails are arranged in the left-right direction, and the adjusting plate (5) is slidably arranged on the two transverse sliding rails; the hand wheel adjusting mechanism (6) is located between the two transverse sliding rails, is arranged in the left-right direction and is located on the left side or the right side of the fixed plate (4).

4. The adjustable rubber seal bar processing support of claim 1, wherein, The turnover frame comprises two circular rings (11) and a support plate (12) between the bottom of the two circular rings (11), and the rubber sealing strip (3) passes through the two circular rings (11); the two circular rings (11) are rotatably arranged on the two vertical plates (10) and are both arranged in the front-rear direction; the support plate (12) is arranged in the front-rear direction and is located directly above the adjusting plate (5); the support die (2) is arranged on the upper side of the support plate (12), the angle adjusting mechanism (7) is arranged between one of the circular rings (11) and the corresponding vertical plate (10), and the locking mechanism (8) is arranged between the other circular ring (11) and the corresponding vertical plate (10).

5. The adjustable rubber seal bar processing support of claim 4, wherein, Two vertical plates (10) are front and rear vertical plates, two rings (11) are front and rear rings, the front ring is rotatably arranged on the front vertical plate, the rear ring is rotatably arranged on the rear vertical plate and coaxially arranged with the front ring, the locking mechanism (8) is arranged between the rear ring and the rear vertical plate, is located on the left side or the right side of the rear ring, and is arranged along the left-right direction; the front and rear ends of the front ring extend forward and backward relative to the front vertical plate, and the front end is coaxially provided with a gear ring; the gear ring is located adjacent to the front of the front vertical plate; the angle adjusting mechanism (7) is arranged between the front ring and the front vertical plate, is located on the left side or the right side of the front vertical plate, is arranged along the left-right direction, is located on the lower side of the front ring, and the bevel gear thereon is engaged with the bottom of the gear ring.

6. The adjustable rubber seal bar processing support of claim 5, wherein, A scale is arranged on the rear end of the front ring and located behind the front vertical plate, the scale is arranged around the front ring, a pointer (13) is arranged on the rear side of the front vertical plate and located above the front ring, and the pointer (13) is vertically arranged and the lower end thereof is matched with the scale.

7. The adjustable rubber seal bar processing support of claim 5, wherein, The front end of the rear ring extends forward relative to the rear vertical plate, the locking mechanism (8) comprises a fixed plate, a hand wheel rotatably arranged on the fixed plate, and a soft body at the end of the hand wheel; the fixed plate is arranged on the front side of the rear vertical plate and is vertically arranged and arranged on the left side or the right side of the rear vertical plate; the hand wheel is arranged along the left-right direction, and the soft body is arranged at the end of the rotating shaft of the hand wheel and abuts against the left side or the right side of the front part of the rear ring.

8. The adjustable rubber seal bar processing support of claim 5, wherein, A fixing sleeve (14) is arranged on the rear side of the front vertical plate; the fixing sleeve (14) is arranged on the left part or the right part of the front vertical plate, is arranged along the front-rear direction, has a through hole arranged along the left-right direction thereon, and has a locking bolt (15) arranged along the front-rear direction at the rear end thereof; the pressing wheel (9) is coaxially arranged at the end of the fixed rod (16), the fixed rod (16) is arranged along the left-right direction and is inserted into the through hole and locked by the locking bolt (15).

9. The adjustable rubber seal bar processing support of claim 8, wherein, The fixing sleeve (14), the locking mechanism (8), the hand wheel adjusting mechanism (6) and the angle adjusting mechanism (7) are all located on the same side.

10. The adjustable rubber seal bar processing support of claim 4, wherein, The support mold (2) is composed of N sub-support molds arranged side by side in front and back; the sub-support mold can be adjusted forward and backward, is detachably arranged on the support plate (12), and has a groove arranged along the front-rear direction at the top thereof and matched with the rubber sealing strip (3); two fixed bars (17) are arranged side by side on the left and right sides of the upper side of the support plate (12), the fixed bars (17) are arranged along the front-rear direction and have a plurality of fixing holes arranged side by side in front and back thereon, and the fixing holes are arranged along the left-right direction; the sub-support mold is a rectangular block arranged along the front-rear direction, is arranged between the two fixed bars (17), can be adjusted forward and backward, is detachably arranged, and is fixed by locking pieces penetrating through the fixing holes.

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