Profiling pressing equipment

Abstract

The invention relates to the technical field of profiling press-fit equipment, in particular to profiling press-fit equipment which comprises a supporting frame. The conveying mechanism is arranged on the supporting frame and used for conveying products in the first direction; and the pressing mechanism is located above the conveying mechanism, the pressing mechanism comprises a fixing plate, a pressing support, a pressing driving piece and a pressing head assembly, the pressing driving piece is arranged on the supporting frame through the fixing plate, and different pressing heads are arranged on the outer side walls of the shell correspondingly. When different pressing heads need to be used, the rotating driving piece drives the shell to rotate along the axis of the shell, the outer side wall of the shell is made to rotate, and the outer side wall loaded with the corresponding pressing head faces the product. Therefore, different outer side walls of the shell can face products to be pressed, and the pressing head can be changed according to different products. According to the scheme, the structure is simple, the cost is low, the labor cost is saved, the time for replacing the pressure head can be saved, and the production efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of contour pressing equipment, in particular to a contour pressing equipment. Background Art

[0002] Contour pressing is a technology that places the product on a contour carrier and assembles and fixes it through components such as positioning cylinders. The existing LOGO contour pressing uses a robot or an XYZ module to press the LOGO fixture on the product. The LOGO fixture is different for different products, so the LOGO fixture needs to be replaced after the product is replaced. The replacement of the fixture requires manual replacement or automatic replacement by the equipment. Manual replacement is labor-intensive and inefficient. The cost of automatic equipment replacement is high, and the replacement also takes time, which affects the efficiency of contour pressing. Summary of the invention

[0003] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a contour pressing device to solve the problem that the prior art needs to replace the jig for different products, which is costly and affects the contour pressing efficiency.

[0004] To achieve the above-mentioned and other related purposes, the present invention provides a profiling pressing device, comprising:

[0005] Support frame;

[0006] A conveying mechanism, disposed on the support frame, for conveying the product along a first direction;

[0007] The pressing mechanism is located above the conveying mechanism, and the pressing mechanism includes a fixed plate, a pressing bracket, a pressing drive and a pressing head assembly. The pressing drive is arranged on the supporting frame through the fixed plate, and the pressing bracket is movably arranged on the fixed plate in a vertical direction. The driving end of the pressing drive is connected to the pressing bracket to drive the pressing bracket to move in the vertical direction. The pressing assembly includes a rotating drive and a shell. Different pressing heads are respectively arranged on each outer side wall of the shell. The rotating drive is arranged on the pressing bracket. The driving end of the rotating drive is transmission-connected to the shell to drive the shell to rotate along its own axis.

[0008] Optionally, each of the pressure heads is detachably arranged on each of the outer side walls of the shell.

[0009] Optionally, a driving member bracket is provided in the shell, and the rotating driving member is provided in the shell through the driving member bracket, and a first rotating shaft is provided on the first end of the driving member bracket along the axial direction of the shell, the first rotating shaft passes through the first end of the shell and is connected to the pressing bracket, the first rotating shaft can rotate relative to the shell, the driving end of the rotating driving member is transmission-connected to the first end of the second rotating shaft through a transmission member, the second end of the second rotating shaft passes through the second end of the shell and is connected to the pressing bracket, and the second rotating shaft is transmission-connected to the shell to drive the shell to rotate along its own axis.

[0010] Optionally, the contour pressing device also includes a lifting mechanism for lifting the product during pressing, the lifting mechanism is arranged on the support frame, the lifting mechanism includes a lifting bracket, a lifting drive, a lifting member and a lifting transmission member, the driving end of the lifting drive member is connected to the lifting transmission member to drive the transmission member to move along a first direction, the lifting member can be movably arranged on the lifting bracket along a vertical direction, the lifting transmission member is provided with a transmission block, the transmission block is provided with a transmission groove, the lifting member is provided with a roller on the side of the lifting transmission member facing the lifting transmission member, the roller can enter and exit the transmission groove along the first direction to drive the lifting member to move along the vertical direction.

[0011] Optionally, the contour pressing device also includes a flipping mechanism arranged on the support frame, the flipping mechanism includes a flipping support frame, a flipping frame and a flipping drive member, the flipping frame is flippably arranged on the flipping support frame, a feeding assembly is arranged on the flipping frame, and the driving end of the flipping drive member is transmission-connected to the flipping frame to drive the flipping frame to flip.

[0012] Optionally, the flipping mechanism further comprises a clamping assembly, wherein the clamping assembly comprises a clamping driving member and a clamping member, and a driving end of the clamping driving member is connected to the clamping member to drive the clamping member to move in a vertical direction.

[0013] Optionally, the transmission mechanism includes a conveying component and a center positioning component, the center positioning component includes a first positioning drive member, a screw transmission unit and two groups of track units arranged opposite to each other along a first direction, the first positioning drive member is connected to the screw transmission unit, the two groups of track units are respectively connected to the screw transmission unit to drive the two groups of track units to approach and move away from each other along a second direction, and the conveying component includes two groups of belt units, and the two groups of belt units are respectively arranged on the two groups of track units.

[0014] Optionally, the screw transmission unit includes a screw driving member, a screw and a screw frame, the screw is rotatably arranged on the screw frame along its own axis, the driving end of the screw driving member is transmission connected to the screw to drive the screw to rotate along its own axis, the screw includes a first thread segment and a second thread segment, and the thread directions of the first thread segment and the second thread segment are opposite.

[0015] Optionally, the center positioning assembly further includes a second positioning drive member and a front positioning unit and a rear positioning unit that are relatively arranged along the first direction, and the front positioning unit and the rear positioning unit are movably arranged on the support frame along the first direction.

[0016] Optionally, the front positioning unit and the rear positioning unit both include a stopper and a stopper driving member, the stopper is arranged on a driving end of the stopper driving member, and the stopper driving member is used to drive the stopper to move in a vertical direction.

[0017] As described above, the contour pressing device of the present invention has the following beneficial effects:

[0018] Different pressing heads are respectively arranged on each outer side wall of the shell. When a different pressing head is needed, the rotating driving member drives the shell to rotate along its own axis, so that the outer side wall of the shell is rotated and the outer side wall carrying the corresponding pressing head is directed toward the product. In this way, different outer side walls of the shell can face the product to be pressed, so that the pressing head can be changed for different products. This solution has a simple structure and low cost. It can save labor costs and also save time for replacing the pressing head, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the overall structure of an embodiment of the present invention after the support frame is hidden;

[0021] Figure 3 It is a schematic diagram of the structure of the pressing mechanism of an embodiment of the present invention;

[0022] Figure 4 This is a schematic structural diagram of a pressure head assembly according to an embodiment of the present invention;

[0023] Figure 5 It is a schematic diagram of the structure of the transmission mechanism and the lifting mechanism of an embodiment of the present invention;

[0024] Figure 6 It is a schematic structural diagram of another angle transmission mechanism and jacking mechanism according to an embodiment of the present invention;

[0025] Figure 7 It is a front view of the lifting mechanism of an embodiment of the present invention;

[0026] Figure 8 A three-dimensional diagram of a lifting mechanism according to an embodiment of the present invention;

[0027] Fig. 9 A schematic diagram of the structure of a flipping mechanism according to an embodiment of the present invention;

[0028] Fig.10 FIG. 2 is a schematic diagram of another angle flipping mechanism structure according to an embodiment of the present invention.

[0029] Part Number Description

[0030] 1-support frame; 2-transmission mechanism; 21-transmission assembly; 22-center positioning assembly; 221-screw transmission unit; 221a-screw;

[0031] 221b-screw frame; 222-track unit; 223-front positioning unit; 224-rear positioning unit; 3-pressing mechanism; 31-pressing head assembly; 311-rotating drive member; 312-transmission member; 313-first rotating shaft; 314-second rotating shaft; 315-housing; 316-pressing head; 32-fixing plate; 33-pressing bracket; 331-sliding rod; 34-pressing drive member; 4-turning mechanism; 41-turning support frame;

[0032] 42-turning drive member; 43-turning frame; 44-clamping assembly; 441-clamping drive member; 442-clamping member; 5-lifting mechanism; 51-lifting member; 511-roller; 52-lifting transmission member; 521-transmission groove; 53-lifting drive member; 54-lifting bracket. DETAILED DESCRIPTION

[0033] The following describes the embodiments of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention.

[0034] It should be noted that the diagram provided in the present embodiment only illustrates the basic concept of the present invention in a schematic manner, so the diagram only shows the components related to the present invention rather than drawing according to the number, shape and size of the components during actual implementation. The type, quantity and ratio of each component during actual implementation can be a random change, and the component layout type may also be more complicated. The structure, ratio, size, etc. illustrated in the drawings of the present specification are only used to match the content disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions that the present invention can implement, so they have no technical substantive significance. Any modification of the structure, change of the proportional relationship or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the effect that the present invention can produce and the purpose that can be achieved. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of narration, and are not used to limit the scope of the present invention. The change or adjustment of its relative relationship should also be regarded as the scope of the present invention without substantially changing the technical content.

[0035] See also Figures 1 to 10 , this embodiment provides a contour pressing device, including a support frame 1, a conveying mechanism 2 and a pressing mechanism 3. The conveying mechanism 2 is used to convey the product backward along a first direction, and the pressing mechanism 3 is used to perform contour pressing on the product. The conveying mechanism 2 and the pressing mechanism 3 are both arranged on the support frame 1, and the pressing mechanism 3 is located directly above the conveying mechanism 2. The pressing mechanism 3 includes a fixed plate 32, a pressing bracket 33, a pressing drive 34 and a pressing head assembly 31, and the outer wall of the fixed plate 32 is correspondingly connected to the inner wall of the support frame 1. The pressing bracket 33 is movably arranged on the fixed plate 32 in the vertical direction, and the pressing drive 34 can be an electric cylinder. The pressing drive 34 is arranged on the top of the fixed plate 32, and the driving end of the pressing drive 34 can pass through the fixed plate 32 in the vertical direction and connect with the top surface of the pressing bracket 33 to drive the pressing bracket 33 to move in the vertical direction on the fixed plate 32. The pressing assembly includes a rotating driving member 311 and a shell 315. The rotating driving member 311 can be a motor. The shell 315 can be in the shape of a cube with a flat outer wall such as a triangle, a cube, or a cuboid. The shell 315 is arranged horizontally. The rotating driving member 311 is arranged on the pressing bracket 33. The driving end of the rotating driving member 311 is connected to the shell 315 to drive the shell 315 to rotate along its own axis, so that the shell 315 can face the product with different outer walls. Four sliding rods 331 are arranged on the top of the pressing bracket 33. The top ends of the sliding rods 331 pass through the fixed plate 32 and can be movably arranged on the fixed plate 32 in the vertical direction, so that the pressing bracket 33 can be movably arranged on the fixed plate 32 in the vertical direction.

[0036] During use, the product is conveyed on the conveying mechanism 2. When conveyed to the bottom of the pressing mechanism 3, the pressing drive 34 drives the pressing bracket 33 to descend, thereby driving the pressing head assembly 31 to descend. The pressing head 316 on the outer wall of the shell 315 presses the product, and then the pressing drive 34 drives the pressing bracket 33 to reset upward to complete a pressing. When the pressing head 316 needs to be replaced, the rotating drive 311 drives the shell 315 to rotate along its own axis, so that the shell 315 changes to face the outer wall of the product, so that different sizes of pressing heads 316 can be used for pressing for different products.

[0037] In this embodiment, different pressing heads 316 are respectively arranged on each outer side wall of the housing 315. When a different pressing head 316 is needed, the rotating driving member 311 drives the housing 315 to rotate along its own axis, so that the outer side wall of the housing 315 is rotated and the outer side wall carrying the corresponding pressing head 316 faces the product. In this way, different outer side walls of the housing 315 can face the product to be pressed, so that the pressing head 316 can be changed for different products. This solution has a simple structure and low cost. It can save labor costs and also save time for replacing the pressing head 316, thereby improving production efficiency.

[0038] In one embodiment, each pressure head 316 is detachably disposed on each outer side wall of the housing 315. The pressure head 316 is disposed on the outer side wall of the housing 315 in a quick-release connection manner. When the installed pressure head 316 needs to be replaced, the quick-release connection manner can be more conveniently replaced, thereby improving replacement efficiency.

[0039] In one embodiment, if Figure 4 As shown, a driving member bracket is arranged in the shell 315, and the rotating driving member 311 is arranged in the shell 315 through the driving member bracket. A first rotating shaft 313 is arranged on the first end of the driving member bracket along the axial direction of the shell 315, the first rotating shaft 313 passes through the first end of the shell 315 and is connected to the pressing bracket 33, the first rotating shaft 313 can rotate relative to the shell 315, the driving end of the rotating driving member 311 is transmission-connected to the first end of the second rotating shaft 314 through the transmission member 312, the second end of the second rotating shaft 314 passes through the second end of the shell 315 and is connected to the pressing bracket 33, the second rotating shaft 314 is transmission-connected to the shell 315 to drive the shell 315 to rotate along its own axis.

[0040] The driving member bracket includes two connecting plates arranged opposite to each other, the two connecting plates are directly connected by a connecting rod, and the rotating driving member 311 is horizontally arranged between the two connecting plates. The driving end of the rotating driving member 311 is arranged to the left and is transmission-connected with the input end of the reducer. The output end of the reducer passes through the connecting plate on the left side and is transmission-connected with the second rotating shaft 314 at the left end through the transmission member 312. The transmission member 312 can be a coupling. The first rotating shaft 313 and the second rotating shaft 314 are both arranged horizontally. The second rotating shaft 314 is fixed to the housing 315 by bolts, so that the second rotating shaft 314 can drive the housing 315 to rotate. The left end of the second rotating shaft 314 is rotatably arranged on the left side of the pressing bracket 33. The right end of the rotating driving member 311 is fixed to the left side of the connecting plate on the right side. The first rotating shaft 313 is connected to the right side of the connecting plate on the right side. The first rotating shaft 313 and the housing 315 can rotate relative to each other. The right end of the first rotating shaft 313 is fixed to the right side of the pressing bracket 33.

[0041] A wire outlet passage is formed between the right connection and the first rotating shaft 313 and passes through in the horizontal direction, so that the cable of the rotating driving member 311 can pass through the housing 315 through the wire outlet passage.

[0042] The structure that the rotating driving member 311 does not rotate itself but drives the housing 315 to rotate can avoid the cable of the rotating driving member 311 from being entangled.

[0043] In one embodiment, if Figures 5 to 8 As shown, the contour pressing device also includes a lifting mechanism 5 for lifting the product during pressing, the lifting mechanism 5 includes a lifting driving member 53, a lifting member 51 and a lifting transmission member 52, the driving end of the lifting driving member 53 is connected to the lifting transmission member 52 to drive the transmission member 312 to move in the first direction, the lifting member 51 can be movably arranged on the lifting bracket 54 in the vertical direction, the lifting transmission member 52 is provided with a transmission block, the transmission block is provided with a transmission groove 521, the lifting member 51 is provided with a roller 511 on the side facing the lifting transmission member 52, the roller 511 can enter and exit the transmission groove 521 in the first direction to drive the lifting member 51 to move in the vertical direction. During pressing, the pressing mechanism 3 applies a large pressure to the product, at this time, the lifting mechanism 5 lifts the product upward, which can protect the product and prevent the product from being damaged by pressing.

[0044] The lifting drive member 53 can be a motor. The lifting bracket 54 is provided with a slide rail along the first direction, and a slider is provided at the bottom of the lifting transmission member 52. The slider cooperates with the slide rail so that the lifting transmission member 52 can move along the first direction on the lifting bracket 54. There are two transmission blocks arranged oppositely along the first direction, and the transmission groove 521 is arranged along the vertical direction and penetrates the thickness direction of the transmission groove 521. The transmission groove 521 is an arc groove, specifically, the rear end of the transmission groove 521 is an arc shape that gradually rises backward. The number of transmission grooves 521 is two arranged along the first direction. There are two groups of rollers 511 arranged oppositely along the first direction, and they cooperate with the transmission grooves 521 respectively. When the lifting transmission member 52 moves forward, each roller 511 moves backward in the corresponding transmission groove 521 and gradually rises, thereby achieving the effect of lifting the lifting member 51 upward. The pressure exerted by the pressing mechanism 3 on the product is relatively large. The above structure converts the pressure of the pressing mechanism 3 on the product in the vertical direction into a thrust of the lifting transmission member 52 along the first direction, so that this embodiment can withstand greater pressure, thereby providing a greater upward thrust to the lifting member 51.

[0045] In one embodiment, if Fig. 9 and 10 As shown, the contour pressing device also includes a flipping mechanism 4, which is arranged on the support frame 1 and is located before the conveying mechanism 2 and the pressing mechanism 3. The flipping mechanism 4 includes a flipping support frame 41, a flipping frame 43 and a flipping driving member 42. The flipping frame 43 is flippably arranged on the flipping support frame 41, and a feeding assembly is arranged on the flipping frame 43. The driving end of the flipping driving member 42 is transmission-connected to the flipping frame 43 to drive the flipping frame 43 to flip.

[0046] The flip driving member 42 can be a motor, and the flip driving member 42 can drive the flip frame 43 to pitch and rotate to drive the product to flip. The feeding assembly is a rotating roller driven by a motor, which can convey the product along the first direction. The rotating roller can be in two rows, upper and lower, and the product is added in the middle for conveying. When the product is fed, the upper and lower directions need to be reversed. The flip mechanism 4 can save labor and improve the degree of automation.

[0047] In one embodiment, if Fig. 9 and 10 As shown, the flip mechanism 4 also includes a clamping assembly 44, which includes a clamping drive 441 and a clamping member 442. The driving end of the clamping drive 441 is connected to the clamping member 442 to drive the clamping member 442 to move in the vertical direction. The clamping drive 441 can be a motor, which drives the clamping member 442 to move in the vertical direction and cooperates with the flip frame 43 to clamp the product (extends between adjacent rotating rollers and presses the top of the product against the rotating roller above). The above structure can ensure that the product is not thrown off when flipping.

[0048] In one embodiment, if Figure 5 and 6 As shown, the transmission mechanism 2 includes a conveying component 21 and a center positioning component. The center positioning component includes a first positioning drive member, a screw transmission unit 221 and two groups of track units 222 arranged opposite to each other along a first direction. The first positioning drive member is connected to the screw transmission unit 221 in transmission connection. The two groups of track units 222 are respectively connected to the screw transmission unit 221 in transmission connection to drive the two groups of track units 222 to move closer to and away from each other along a second direction. The conveying component 21 includes two groups of belt units, and the two groups of belt units are respectively arranged on the two groups of track units 222.

[0049] The conveying assembly 21 is used to convey the product, which is achieved by driving the belt by a motor. The two groups of belt units are respectively arranged on the opposite sides of the two groups of track units 222 to facilitate driving by the screw drive unit 221.

[0050] The first positioning drive member drives the screw transmission unit 221 to drive the two sets of track units 222 to move closer to and away from each other along the second direction, so as to achieve positioning of the product along the second direction. By positioning the product along the second direction, the accuracy of the product pressing position is improved, thereby improving the product yield. The above structure has high positioning efficiency and high positioning accuracy.

[0051] In one embodiment, if Figure 6 As shown, the screw transmission unit 221 includes a screw 221a driving member, a screw 221a and a screw frame 221b, the screw 221a is rotatably arranged on the screw frame 221b along its own axis, the driving end of the screw 221a driving member is transmission-connected with the screw 221a to drive the screw 221a to rotate along its own axis, the screw 221a includes a first thread segment and a second thread segment, and the thread directions of the first thread segment and the second thread segment are opposite. The screw transmission unit 221 has a simple structure, high transmission efficiency and stable operation.

[0052] In one embodiment, if Figure 5 and 6 As shown, the center positioning assembly also includes a second positioning drive member and a front positioning unit 223 and a rear positioning unit 224 that are arranged opposite to each other along the first direction, and the front positioning unit 223 and the rear positioning unit 224 are movably arranged along the first direction on the support frame 1. The front positioning unit 223 and the rear positioning unit 224 move along the first direction to position the product between the two, so as to position the product along the first direction.

[0053] In one embodiment, the front positioning unit 223 and the rear positioning unit 224 each include a stopper and a stopper driver, wherein the stopper is disposed on a driving end of the stopper driver, and the stopper driver is used to drive the stopper to move in a vertical direction. The stopper driver may be a cylinder, which can drive the stopper to rise and fall, and can be adjusted for products of different sizes and heights. The stopper is in a lowered state when idle, which can avoid interference with other components of this embodiment.

[0054] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A contour pressing device, characterized in that: include: Support frame; A conveying mechanism, disposed on the support frame, for conveying the product along a first direction; The pressing mechanism is located above the conveying mechanism, and the pressing mechanism includes a fixed plate, a pressing bracket, a pressing drive and a pressing head assembly. The pressing drive is arranged on the supporting frame through the fixed plate, and the pressing bracket is movably arranged on the fixed plate in a vertical direction. The driving end of the pressing drive is connected to the pressing bracket to drive the pressing bracket to move in the vertical direction. The pressing assembly includes a rotating drive and a shell. Different pressing heads are respectively arranged on each outer side wall of the shell. The rotating drive is arranged on the pressing bracket. The driving end of the rotating drive is transmission-connected to the shell to drive the shell to rotate along its own axis.

2. The contour pressing device according to claim 1, characterized in that: Each of the pressure heads is detachably arranged on each of the outer side walls of the shell.

3. The contour pressing device according to claim 1, characterized in that: A driving member bracket is arranged in the shell, and the rotating driving member is arranged in the shell through the driving member bracket. A first rotating shaft is arranged on the first end of the driving member bracket along the axial direction of the shell, the first rotating shaft passes through the first end of the shell and is connected to the pressing bracket, the first rotating shaft can rotate relative to the shell, the driving end of the rotating driving member is transmission-connected to the first end of the second rotating shaft through a transmission member, the second end of the second rotating shaft passes through the second end of the shell and is connected to the pressing bracket, and the second rotating shaft is transmission-connected to the shell to drive the shell to rotate along its own axis.

4. The contour pressing device according to claim 1, characterized in that: The contour pressing device also includes a lifting mechanism for lifting the product during pressing, the lifting mechanism is arranged on the support frame, the lifting mechanism includes a lifting bracket, a lifting drive, a lifting member and a lifting transmission member, the driving end of the lifting drive member is connected to the lifting transmission member to drive the transmission member to move along a first direction, the lifting member can be movably arranged on the lifting bracket along a vertical direction, the lifting transmission member is provided with a transmission block, the transmission block is provided with a transmission groove, the lifting member is provided with a roller on the side of the lifting transmission member facing the lifting transmission member, the roller can enter and exit the transmission groove along the first direction to drive the lifting member to move along the vertical direction.

5. The contour pressing device according to claim 1, characterized in that: The contour pressing device also includes a flipping mechanism arranged on the support frame, and the flipping mechanism includes a flipping support frame, a flipping frame and a flipping driving member. The flipping frame is flippably arranged on the flipping support frame, and a feeding assembly is arranged on the flipping frame. The driving end of the flipping driving member is transmission-connected to the flipping frame to drive the flipping frame to flip.

6. The contour pressing device according to claim 5, characterized in that: The turnover mechanism further comprises a clamping assembly, wherein the clamping assembly comprises a clamping driving member and a clamping member, wherein a driving end of the clamping driving member is connected to the clamping member to drive the clamping member to move in a vertical direction.

7. The contour pressing device according to claim 1, characterized in that: The transmission mechanism includes a conveying component and a center positioning component. The center positioning component includes a first positioning drive member, a screw transmission unit and two groups of track units arranged opposite to each other along a first direction. The first positioning drive member is connected to the screw transmission unit in a transmission connection. The two groups of track units are respectively connected to the screw transmission unit in a transmission connection to drive the two groups of track units to move closer to and away from each other along a second direction. The conveying component includes two groups of belt units, and the two groups of belt units are respectively arranged on the two groups of track units.

8. The contour pressing device according to claim 7, characterized in that: The screw transmission unit includes a screw driving member, a screw and a screw frame. The screw is rotatably arranged on the screw frame along its own axis. The driving end of the screw driving member is transmission-connected to the screw to drive the screw to rotate along its own axis. The screw includes a first thread segment and a second thread segment. The thread directions of the first thread segment and the second thread segment are opposite.

9. The contour pressing device according to claim 7, characterized in that: The center positioning assembly further includes a second positioning drive member and a front positioning unit and a rear positioning unit which are arranged opposite to each other along a first direction. The front positioning unit and the rear positioning unit are movably arranged on the support frame along the first direction.

10. The contour pressing device according to claim 9, characterized in that: The front positioning unit and the rear positioning unit each include a stopper and a stopper driving member, wherein the stopper is arranged on a driving end of the stopper driving member, and the stopper driving member is used for driving the stopper to move in a vertical direction.

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