UA119382C2 - CLIPPER PRESSING UNIT (OPTIONS) - Google Patents

Abstract

The invention relates to the field of food industry, namely to equipment intended for packaging various products in a tubular or bag-like hose shell, in particular, in the production of sausages. The clamping unit for the clipper in the first embodiment is made with an adjustable toothed clutch to adjust the angle of closure of the jaws of the clamp, as well as to change the center of the clamp. The clamping unit for the clipper in the second embodiment is made with a bracket having at least two interconnected grooves, and a drawbar, the end of which is made to accommodate in one of the grooves of the bracket, made with the possibility of moving the second end of the drawbar between grooves broach values. In addition, the squeezing unit may include a trap for filled loaves. The technical result is a quick readjustment of the clamping unit for the clipper to work with different hose shells that differ in size and mechanical properties.

Description

The invention belongs to the field of food industry, namely to the equipment intended for packaging various products in a tubular or bag-like sleeve shell, in particular, in the production of sausages.

The invention relates, in particular, to the elements of the clipper, designed for automatic crimping and sealing with staples of various plastic fillers in polymer, cellophane, white cosine and others, used for mechanical clipping, sleeve casings, cutting the casing between loaves, interaction with the inflating device and, if necessary , fixing the twine loop under the paper clip, marking the date of manufacture (or expiration date) by stamping the paper clip.

In most cases, such clips contain a cam drive that determines the law of movement of the locking levers with the clamping tools attached to them. For example, a simple lever or a crank-lever mechanism is used to transmit power to the locking levers.

A known clamping unit for a clipper (1), containing: a drive; a body with a clamping mechanism fixed on it, made in the form of 2 pairs of shaped cheeks that converge; the mechanism of the axial broaching of the cheeks, connected to the cam drive; the mechanism for supplying staples to the clipping zone and the mechanism for clamping staples, made in the form of two clamping tools installed with the possibility of movement relative to each other.

However, when using the specified clamping block for a clipper used for clipping different shells that differ in size and physical properties, for high-quality clipping, it is necessary to adjust the amount of convergence of the cheeks and the position of the flagellum from the shell relative to the matrix, selecting the degree of tension of the assembled shell individually for of each size. This requires the intervention of special service personnel and the use of an additional tool. This process is quite time-consuming and time-consuming, which reduces the efficiency of using this equipment.

The known clamping unit for the clipper (2), adopted as a prototype for both variants of the claimed block and containing: a fixed unit of clamping jaws installed on the first axis and a movable unit of clamping jaws, made with the possibility of movement relative to the fixed block

From the pinching cheeks along the first axis along the guides; a drive containing a rack-and-pinion mechanism; cam connected to the drive.

However, when using the specified clamping block for a clipper used for clipping different shells that differ in size and physical properties, for high-quality clipping it is necessary to adjust the amount of convergence of the cheeks by turning the rail, hinged on the axis. This requires the intervention of special service personnel and the use of an additional tool.

In addition, in the process of clipping sausage loaves of small length (short), or with a low filling density, there is a possibility that the loaves for clipping will fall into the space between the conveyor and the clamping cheeks, which, in turn, can lead to both improper operation of the clipper and to the rush of the filling shell.

The technical task of the claimed invention is the development of a reliable clamping block for the clipper to improve the clipping process when filling different products (fillers) into shells with different geometric and physical parameters in order to prevent surges in the process of filling and clipping a tubular or bag-like sleeve shell.

The technical result when using the claimed crimping unit for the clipper consists in providing a quick, without the use of a special tool, readjustment of the crimping unit for working with different sleeve shells that differ in size and mechanical properties.

The task is solved in the first version of the claimed clamping block for a clip-on, which contains a fixed block of clamping jaws installed on the first axis and a movable block of clamping cheeks, made with the possibility of movement relative to the fixed block of clamping cheeks along the first axis along the guides, and drive control devices, that the clamping block for the clipper is provided with a first two-armed lever mounted on the second axis, the first arm of which is designed to communicate with the first drive control device, and the second arm is hinged to the fixed block of clamping jaws by means of a lanyard and first rods, the second two-armed lever installed on the third axis fixed on the body, the first arm of which is designed for communication with the second drive control device, and the second arm is connected to the first arm of the third two-armed lever, the second arm of which is connected with the cheek of the movable clamping block, 60 and the clamping block for the cli psatora is additionally equipped with a fourth lever,

installed on the side of the second arm of the first two-armed lever, made with a longitudinal groove and with the possibility of rotation on the fifth axis fixed in the body, and installed with the possibility of movement along the longitudinal groove of the fourth lever by a carriage in which the sixth axis is fixed, on which the first ends of the first rods connected through a lanyard with the second arm of the first two-armed lever, and the second ends of the first rods are fixed on the guides and connected to the fixed unit of the clamping jaws, while the fourth lever is connected by means of the third rod to the adjusting gear clutch.

Drive control devices can be made in the form of a separate cam with a guide groove formed by a pair of closed control profiles, or in the form of a separate guide groove formed by a pair of closed control profiles on different sides of one cam.

The gear clutch preferably contains a fixed gear half-clutch and a movable gear half-clutch, installed on the sixth axis, the axis of which is located with an eccentricity relative to the axis of symmetry of the gear clutch, which provides the necessary closing angle of the mentioned jaws of the clamping mechanism.

The clamping block for the clipper can contain a tray-catcher of finished products, fixed on a bracket made with guide grooves and fixed on the traverse of the movable block of clamping cheeks with the possibility of installation in different positions along the guide grooves.

The task is solved in the second version of the claimed clamping unit for a clip-on, which contains a fixed unit of clamping jaws installed on the first axis and a movable unit of clamping jaws, made with the possibility of movement relative to the stationary unit of clamping jaws along the first axis along the guides, and drive control devices, that the clamping unit for the clipper is provided with a first two-armed lever mounted on the second axle, the first arm of which is designed to communicate with the first drive control device, and the second arm, with the help of lanyards and first rods, is hinged to the stationary unit of clamping jaws, the second two-armed lever, mounted on the third axis fixed on the body, the first arm of which is designed for communication with the second drive control device, and the second arm, through the second rods articulated from the fourth axis, is connected to the first arm of the third two-armed lever, the second arm of which is connected to the cheek of the movable clamping block,

Moreover, the clamping unit for the clipper is additionally equipped with a bracket fixed on the body, which has at least two grooves connected to each other, and a pulley, the first end of which is installed on the seventh axis, and the second end is designed to be placed in one of the grooves of the bracket, made with the possibility of moving the second end of the curtain between the grooves.

Drive control devices can be made in the form of a separate cam with a guide groove formed by a pair of closed control profiles, or in the form of a separate guide groove formed by a pair of closed control profiles on different sides of one cam.

The clamping block for the clipper can contain a tray-catcher of finished products, fixed on a bracket made with guide grooves and fixed on the traverse of the movable block of clamping cheeks with the possibility of installation in different positions along the guide grooves.

Examples of the implementation of the claimed clamping unit for the clipper and the order of its operation are shown in the non-limiting drawings below.

Fig. 1 - Diagram of the clamping unit for the clipper, general view with the left wall of the case.

Fig. 2 - Schematic of the clamping unit for the clipper, general view with the right wall of the case.

Fig. C - General view of the compression block according to the first variant of the invention.

Fig. 4 - Adjustment of the amount and center of the overcrowding.

Fig. 5 - Section B in fig. 4 (enlarged).

Fig. 6 - General view of the toothed clutch.

Fig. 7 - Longitudinal section of the toothed clutch according to fig. 6.

Fig. 8 - General view of the mechanism of the axial broaching of the cheeks of the pressing block according to the second variant of the invention.

Fig. 9 - Catcher of filled loaves.

Fig. 10 - An example of the installation of the filled loaves catchers.

Fig. 11-14 - Schematic diagram of the process of clipping a filled loaf.

Fig. 15 - Scheme of possible consequences when working without pressing the loaf catchers.

Fig. 16 - Scheme of possible consequences when working without pressing the loaf catchers.

Fig. 17 - Scheme of operation of squeezing with installed catcher at the time of filling (510) of the shell.

Fig. 18 - Section A in fig. 17 (enlarged).

Fig. 19a-198 - Location of the axis of the filled loaves relative to the center of the pressing block.

The crimping block for the clipper contains two paired radially converging blocks: the fixed block 1 of the clamping jaws and the movable block 2 of the clamping cheeks are mounted on the first axis 3. Each block of the clamping cheeks has two cheeks with a curved profile: the upper 4 and the lower 5. Blocks 1 and 2 of the cheeks the clamps are rigidly connected in an angular position to each other and during radial convergence, rotating around the common axis 3, work synchronously. Such a connection is ensured by means of two guides 6. The movable block 2 is made with the possibility of movement relative to the stationary block 1 of the clamping jaws along the first axis Z along the guides 6.

The first two-armed lever 7 is mounted on the second axis 8, its first arm is designed to communicate with the first drive control device, which is, in this example, a guide groove 9 formed by a pair of closed control profiles on one of the sides of the cam 10 (see Fig. 3). The second arm of the first two-armed lever 7 is hingedly connected to the fixed unit 1 of the clamping jaws by means of lanyards 11 and the first rods 12. The second two-armed lever 13 is installed on the third axis 15 fixed on the body 14, the first arm of the second two-armed lever 13 is designed for communication with the second drive control device, which in this example is the second guide groove 16 formed by paired closed control profiles on one of sides of the cam 10, and the second arm is connected to the first arm of the third two-armed lever 20, the second arm of which is connected to the cheek of the movable block 2 of the clamping jaws through the second rods 18 and 19, which are hinged and connected along the fourth axis 17. The fourth lever 21, installed on the side of the second arm of the first two-armed lever 7, is made with a longitudinal groove 22 and can be rotated on the fifth axis 23 fixed in the housing. The carriage 24 is installed in the longitudinal groove 22 with the possibility of movement along it. The sixth axis 25 is fixed in the carriage 24, on which the first ends of the first rods 12 are installed, connected through the lanyard 11 and to the second arm of the first two-armed lever 7. The second ends of the first rods 12 are fixed on the guides 6 and connected to the fixed block 1 of the cheeks squeezing The fourth lever 21 is connected by means of the third rod 26 to the adjusting gear clutch 27.

Geared clutch 27 is used to quickly adjust the amount of compression closure (Fig.

Zo b, 7), consisting of a fixed semi-coupling 28, fixed on the wall of the housing 14, and a movable semi-coupling 29, rigidly connected through an elastic element 30 to an eccentric axis 31, made with eccentricity C, relative to the axis of the gear coupling 27. For visual control of the adjustment value, a numerical scale 32 is applied to the surface of the half coupling 29, and a cursor mark 33 is applied to the other half coupling 28.

The claimed clamping unit for the clipper in the second version (Fig. 2, 8) of the implementation is additionally equipped with a bracket 34, fixed on the body 14 and having at least two grooves 35 connected to each other, and a pulley 36. The first end of the pulley 36 is installed on the seventh axis 37, and the second end is designed to be placed in one of the grooves 35 of the bracket 34, made with the possibility of moving the second end of the curtain rod 36 between the grooves 35.

To prevent products being produced - sausage loaves - from falling into the space between the receiving conveyor 38 (Fig. 15-18) and the cheeks 4, 5 of the block 2 of the pinching cheeks, a catcher 39 (Fig. 2, 9, 10, 17-19) filled with of loaves, consisting of a bracket 40, a catcher tray 41, fixed on the bracket 40 with fastening elements 42 and fastening elements 43, intended for fastening the catcher 39 to the cheek 5 of the movable unit 2 of the pinching cheeks.

Clipsator with the declared unit of broaching cheeks works as conventionally shown in fig. 11-14.

A sleeve shell 45 is put on the filling tube 44 of the feeder, after which an adjustable braking device 46 is installed on the tube 44, already with the shell 45 on, which creates the necessary force to hold the shell 45 when it is filled with the product and prevents air from entering the inner part of the shell with the product.

In the process of drawing the cheek, the upper cheeks 4 of the pinching are brought together radially with the lower cheeks of the 5 pinching relative to the clipped loaf. The shell 45 is squeezed (Fig. 12).

After that, the movable block 2 of the clamping jaws (Fig. 13) makes an axial shift by

Ak, in the direction of filling the product, while creating a taut flagellum from the shell 45.

To form the flagellum, the shell 45 is pulled through the cheeks 4 and 5, as well as through the braking device 46, using the supply of the shell located on the filling tube 44 (Fig. 12).

Clipping is performed, while two clips 47 are applied to the formed harness (Fig. 13). The first clip is applied to the end of the previous loaf, the second - to the beginning of the next one.

After the clips 47 are clamped, the flagellum is divided between the clips 47 with a cutting knife 48 (Fig. 14).

In the next half-cycle of the clipper, all mechanisms return to their initial state. At the same time, at the end of the cycle of the clipper, two paperclips 47 are simultaneously pre-fed into the clipping zone. The clipped product is removed from the clipping zone using the unloading tray or conveyor 38 (Fig. 15-18).

Through the inner part of the tube, the shell product is filled for the next portion. Filling takes place with the help of a pumping device (for example, a vacuum syringe), it is not included in this technical system.

After filling the required portion, the operator starts the clipper in automatic mode. At the same time, all the previously listed operations are cyclically performed until the entire supply of the shell located on the filling tube is used up.

The operation of the claimed broach blocks for the clipper can be considered in more detail using figures 1-14.

The compressive force on the blocks 1 and 2 of the clamping jaws is transmitted from the first rods 12, which are installed on the axis 25. The axis 25 is installed in the guide carriage 24. The carriage 24 moves along the longitudinal groove 22 of the lever 21 and sets the rectilinear movement of the axis 25, which with the help of straps 11 connected to the first two-armed lever 7. The first two-armed lever 7 receives driving force from the driving control cam 10. The cam 10 has a rigid kinematic connection with the drive (not shown in the drawing) and makes one complete revolution per clipping cycle. The cam 10 has a first guide groove 9 formed by closed control profiles that set the law of motion of the first two-armed lever 7 throughout the clipping cycle. The control cam 10 has a kinematic connection with other nodes, which ensures the synchronicity of the operation of all nodes of the clip.

When changing the used shell, there is a need to change the residual opening sa (Fig. 4, 5) between the clamping cheeks 4 and 5, which determines the closing angle of the clamping cheeks 4 and 5. A gear coupling 27 is provided to adjust the closing angle of the clamping jaws 4 and 5.

At the time of adjustment, the movable half-coupling 29 (Fig. 7) of the gear coupling 27 is disconnected in its axial position, leaving it connected in an angular position to the axis

With an eccentric 31. Adjustment is carried out by turning the movable semi-coupling 29 relative to the stationary semi-coupling 28, discretely by the teeth, which are made on the semi-couplings 28 and 29. By turning the axis-eccentric 31 (Fig. 4), a greater or lesser movement of the axis 25 is achieved, which determines the angle of closing the cheeks4 and 5 clamping (Fig. 4), and therefore reduces or increases the residual opening a (Fig. 5) between the cheeks 4 and 5 clamping.

After carrying out the necessary adjustment, the movable gear semi-coupling 29 is turned into engagement with the fixed gear semi-coupling 28, than the eccentric axis 31 is fixed in the desired angular position. Fixation of the movable half-coupling is carried out using an elastic axial element 30 (Fig. 7) (it can be made in the form of a compression spring, or in any other known way).

The fourth lever 21 (Fig. 3, 4), along the groove of which the carriage 24 can be moved linearly, is made with the possibility of rotation with respect to the fifth axis 23 under the action of the third thrust 26. In the nominal (calculated position) axis 25 is located on the theoretical axis X ( Fig. 4), which connects the first axis Z of rotation of the blocks 1 and 2 of the clamping jaws and the fifth axis 23 of the rotation of the lever 21. In this position, the first two-armed lever 7 acts on the lanyard 11, and then on the axis 25. Axis 25 transmits forces to the first rods 12, which drive the cheeks 4 and 5, which converge to the position of maximum closed clamping, forming a residual opening 4, which is located at the theoretical (starting) point 5 (Fig. 5) of clamping.

If it is necessary to change the center of compression, the fourth lever 21 is turned, for example, to the angle M or M: around the center O (Fig. 4). The linear trajectory of the axis 25 (Fig. 3, 4) also deviates by this angle, which leads to the rotation of the flagellum collection point relative to the Z axis in the opposite direction from the angles M or Mi of the rotation of the fourth lever 21. The amount of deviation of the lever 21 by the angle M or Mi is set by turning the axis of the eccentric 31, which affects the rod 26 with an eccentric neck and deflects the lever 21 to the required angle M/.

Thus, quick, without the use of a special tool, readjustment of the clamping block for the clipper is ensured, namely, the readjustment of the size of the flagellum and the position of the pinching point of the clamping block for the clipper, depending on the dimensions and mechanical properties of the sleeve shells used for work.

The shear force on the movable block 2 of the clamping jaws is transmitted, in this example, from the same cam 10. It can be implemented in the form of a separate cam or any other known device. The cam 10 has a rigid kinematic connection with the drive (not shown in the drawing) and makes one complete revolution per clipping cycle. The cam 10 has a second guide groove 16 (Fig. 8), formed by closed control profiles that set the law of movement of the second two-armed lever 13 throughout the clipping cycle. The second two-armed lever 13 rotates around the fixed axis 15 according to the law of motion given by the closed control profiles. The axis 15 is installed on the side wall of the housing 14 (Fig. 1). The lever 13 (Fig. 8) is connected to the rod 19 by the eighth axis 49. The rod 19 is connected to the link 36 and the rod 18 by one axis 37.

The other end of the curtain 36 is installed in one of the grooves 35 of the bracket 34. The bracket 34 should have at least two interlocking grooves 35, and, if necessary, more.

These grooves 35 provide the possibility of setting the second end of the curtain 36 in several positions.

The bracket 34 is installed and fixed on the body 14. The rod 18 (Fig. 8) transmits the power effect to the broaching mechanism through the ninth axis 50. The broaching mechanism is made in the form of a double-armed lever 20 with the center of rotation on the tenth axis 51. The axis 51 is installed in a stationary bracket 52, which, in turn, is fixed on the body 14. The other arm of the two-armed lever 20, made in the form of a fork, is in mechanical engagement with the movable block 2 of the clamping jaws, ensuring the axial movement of the movable block 2 of the clamping jaws from the initial compressed position to the position lk (Fig. 13) in relation to the stationary unit 1 of the clamping jaws (Fig. 8, 12) along axis 3.

If it is necessary to adjust the amount of broaching to a value different from the position dk (Fig. 13), it is necessary to move the second end of the curtain 36 to another groove 35 of the bracket 34.

The adjusting nut 53 installed on the specified end of the slide 36 should be unscrewed, the end of the slide should be moved to the corresponding one of the grooves 35 and fixed with the specified nut 53. After performing these actions, the movable block 2 of the clamping jaws will move to the changed value Ak when performing subsequent clipping cycles.

Thus, when the clamping mechanism is in the initial position, the change in the position of the end of the pulley 36 does not lead to a change in the position of all other links of the kinematic chain, the initial gap between the stationary block and the clamping jaws and the movable block 2 of the clamping jaws remains unchanged, but when the next clamping mechanism is performed of the working cycle, the movable unit 2 of the clamping jaws will move along the first axis Z by the required value Lk relative to the stationary unit 1 of the clamping jaws.

In this way, quick adjustment of the clamping block for the clipper is provided without the use of a special tool, namely, the adjustment of the amount of draw (the length of the formed flagellum) of the movable block of the clamping cheeks, depending on the dimensions and mechanical properties of the sleeve shells used for work.

To prevent loaves that are clipped from falling into the space between the conveyor 38 and the cheeks of the clamping jaw blocks (as shown in Fig. 15, 16), a catcher 39 of filled loaves (Fig. 2, 10, 17, 18, 19c) is designed, consisting of the bracket 40 (Fig. 9), the catcher tray 41, fixed on the bracket 40 with fastening elements 42, and fastening elements 43, intended for fastening the catcher to the traverse 54 of the movable block 2 of the pinching cheeks.

The catcher 39 of filled loaves (Figs. 10, 17, 18) moves in the horizontal direction together with the movable block 2 of the pinching jaws relative to the stationary block 1 of the pinching cheeks, covering the gap to the conveyor 38. If it is necessary to adjust the vertical position of the catcher 39 relative to the center of the pinching, the movement takes place thanks to the grooves 55 in the bracket 40 of the catcher 39, which act as guides. To adjust the vertical position of the catcher 39, it is necessary to loosen the fastening elements 43, and, moving the catcher 39 so that the fastening elements 43 slide in the grooves 55, select the required position. After setting the vertical position of the catcher 39, the fastening elements 43 must be tightened. It is recommended to adjust the vertical position of the catcher 39 at each change in the caliber (diameter) of the filling shell 45. Due to this, the catcher 39 can be used when clipping the product into any caliber of shells passing through the clamping cheeks.

The use of the catcher 39 after the movable unit 2 of the pinching jaws allows you to direct and center the filling bar with the product on the transport tray, which eliminates the possible sinking under the conveyor 38 and the sagging of the filling bars, and also ensures the alignment of the filled bars with the center of the pressing, which in turn contributes to symmetrical application paper clips relative to the axis of the loaf, which is clipped (see fig. 19a-19c).

Thus, the stated design ensures the achievement of the stated technical result - fast, without the use of a special tool, readjustment of the clamping block for the clipper for work with various sleeve bo shells that differ in size and mechanical properties is ensured.

Achieving the declared technical result provided a solution to the technical problem - a reliable clamping unit for the clipper was developed, an improved clipping process was developed when filling different products (fillers) into shells with different geometric and physical parameters in order to prevent surges during the filling and clipping of tubular or bag-like sleeve shells .

Sources of information: 1.2 2162638 C1, 2001. 2. Vy 2384068 C2, 2010 (prototype).

Claims (3)

FORMULA OF THE INVENTION 1. The clamping block for the clipper, which contains a fixed block of clamping jaws and a movable block of clamping jaws installed on the first axis, made with the possibility of movement relative to the fixed block of clamping jaws along the first axis along the guides, and drive control devices, which is characterized by the fact that the block is provided by the first two-armed lever installed on the second axis, the first arm of which is designed to communicate with the first drive control device, and the second arm is hingedly connected to the stationary unit of the clamping jaws by means of lanyards and first rods, by the second two-armed lever installed on the fixed on body of the third axis, the first arm of which is designed for communication with the second drive control device, and the second arm is connected to the first arm of the third double-armed lever, the second arm of which is connected to the cheek of the moving block clamping, and the block is additionally equipped with a fourth lever installed on the side of the second arm of the first two shoulder lever, made with a longitudinal groove and with the possibility of rotation on the fifth axis fixed in the body, and installed with the possibility of movement along the longitudinal groove of the fourth lever by a carriage in which the sixth axis is fixed, on which the first ends of the first rods are installed, connected through lanyard with the second arm of the first two-armed lever, and the second ends of the first rods are fixed on the guides and connected to the fixed block of the clamping jaws, while the fourth lever is connected with the help of the third rod to the adjusting toothed clutch. 2. The clamping block for the clipper according to claim 1, which is characterized by the fact that each driving control device is made in the form of a separate cam with a guide groove formed by a pair of closed control profiles. Q. The clamping block for the clipper according to claim 1, which is characterized in that the first and second driving control devices are made in the form of a separate guide groove formed by a pair of closed control profiles on different sides of the same cam. 4. Clamping block for a clipper, according to claim 1, which is characterized by the fact that the adjusting gear clutch contains a fixed gear half-clutch and a movable gear half-clutch mounted on the seventh axis, the axis of which is located eccentrically relative to the axis of symmetry of the adjusting gear clutch, which provides the required angle closing the said jaws of the clamping mechanism. 5. The clamping unit for the clipper according to claim 1, which is characterized by the fact that it contains a tray-catcher of finished products, fixed on a bracket made with guide grooves and fixed on the traverse of the movable unit of the clamping jaws with the possibility of installation in different positions along the guide grooves. 6. The clamping block for the clipper, which contains a fixed block of clamping jaws and a movable block of clamping jaws installed on the first axis, made with the possibility of movement relative to the fixed block of clamping jaws along the first axis along the guides, and drive control devices, which is characterized by the fact that the block is provided the first two-armed lever installed on the second axis, the first arm of which is designed to communicate with the first drive control device, and the second arm is hingedly connected to the stationary unit of the clamping jaws with the help of lanyards and first rods, the second two-armed lever installed on the fixed on body of the third axis, the first arm of which is designed for communication with the second drive control device, and the second arm is connected to the first arm of the third double-armed lever, the second arm of which is connected to the cheek of the moving block clamping, and the block is additionally equipped with a bracket fixed to the body and having at least two joints they have grooves with each other, and a pulley, the first end of which is installed on the seventh axis, and the second end is made to be placed in one of the grooves of the bracket, made with the possibility of moving the second end of the pulley between the grooves. 7. The clamping block for the clipper according to claim 6, which is characterized by the fact that each drive control device is made in the form of a separate cam with a guide groove formed by a pair of closed control profiles. 8. The clamping block for the clipper according to point b, which is characterized by the fact that the first and second drive control devices are made in the form of a separate guide groove formed by a pair of closed control profiles on different sides of one cam. 9. 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